Valve bonding strength determination method and valve bonding strength test system

Abstract

The invention relates to a valve bonding strength determination method and a valve bonding strength test system. The method comprises the following steps: curing a pre-connected valve piece to obtain a valve sample piece, so that the stability of the structure of the valve sample piece can be guaranteed, and the situation that the result of determining the bonding strength of the valve is influenced due to looseness or deformation of the valve sample piece in the bonding strength determining process is avoided; the execution part is controlled to apply the axial force to the valve sample piece, the axial force value corresponding to the valve sample piece at the target moment is determined, the target axial force value is obtained, the real load experienced by the valve in actual operation can be simulated, and therefore the bonding strength of the valve coating under the influence of the high-pressure environment can be reflected more truly; and determining the bonding force of the valve sample according to the target axial force value, and determining the bonding strength of the valve sample according to the bonding force, so that the reliability of determining the bonding strength of the valve can be improved.

Description

Technical Field

[0001] The present application relates to the field of engine technology, and in particular to a valve bonding strength determination method and a valve bonding strength testing system. Background Art

[0002] In the field of engine technology, breakthroughs in thermal efficiency are driving the advancement of engine technology. This is because improving thermal efficiency means that the engine can more effectively convert the chemical energy in the fuel into mechanical energy, thereby reducing fuel consumption and improving overall energy utilization efficiency. The valve is a key component of the engine. The higher the thermal efficiency of the valve, the more efficient the energy conversion during the combustion process. Optimizing the design and material processing of the valve is crucial to improving the thermal efficiency of the engine. In the process of improving the thermal efficiency of the valve, thermal insulation coatings are widely used in key components such as valves. The coating bonding strength is a key technical indicator that determines the reliability of the thermal insulation coating, that is, the effectiveness and durability of the valve thermal insulation coating are closely related to its bonding strength. If the bonding strength of the thermal insulation coating is insufficient, the thermal insulation coating on the valve may fall off, thereby affecting the thermal insulation effect of the valve and ultimately reducing thermal efficiency. Therefore, in the development and application of thermal insulation coatings, the detection of coating bonding strength is particularly important.

[0003] In traditional technology, the valve bonding strength is tested by the cross-hatch method or the bending method. The cross-hatch method refers to scratching a certain pattern on the coating surface, then sticking it with tape and quickly tearing it off to observe the peeling of the coating; the bending method refers to applying a bending force to the coating sample and measuring the peeling or cracking phenomenon that occurs during the bending process to determine the bonding strength.

[0004] However, valve components are subject to extreme high-pressure conditions during actual use. The current cross-hatch method or bending method used to test the valve bonding strength cannot determine the valve bonding strength under the influence of complex environments, thereby reducing the reliability of determining the valve bonding strength. Summary of the invention

[0005] Based on this, it is necessary to provide a valve bonding strength determination method and a valve bonding strength testing system that can determine the valve bonding strength under the influence of a high-pressure environment and improve the reliability of the valve bonding strength determination in response to the above-mentioned technical problems.

[0006] In a first aspect, the present application provides a valve joint strength determination method, which is applied to a valve joint strength test system, wherein the valve joint strength test system includes a valve component and an actuator, and the method includes:

[0007] Performing a curing treatment on the pre-connected valve components to obtain valve samples;

[0008] The control actuator applies an axial force to the valve sample, determines the axial force value corresponding to the valve sample at the target time, and obtains the target axial force value;

[0009] The binding force of the valve sample is determined according to the target axial force value, and the binding strength of the valve sample is determined according to the binding force.

[0010] In one embodiment, the system further comprises a joint member, the valve member comprises a first valve member and a second valve member, and before curing the pre-connected valve members, the system further comprises:

[0011] The first end of the first valve member is connected to the first end of the coupling member, and the first end of the second valve member is connected to the second end of the coupling member to obtain pre-connected valve members.

[0012] In one embodiment, before the control actuator applies the axial force to the valve sample, the method further includes:

[0013] The environmental parameters of the valve sample are adjusted to ensure that the valve sample is within the target environmental parameter range.

[0014] In one embodiment, determining the bonding strength of the valve sample according to the bonding force includes:

[0015] determining a contact area between a first end of the first valve member and a first end of the engagement member to obtain a target area;

[0016] The bonding force and the target area are processed to obtain the bonding strength of the valve sample.

[0017] In a second aspect, the present application further provides a valve joint strength testing system, which is applicable to the valve joint strength determination method, and the system comprises:

[0018] A first connecting assembly connected to the first valve member and used to support the first valve member;

[0019] a second connecting assembly connected to the second valve member and used to support the second valve member;

[0020] Among them, the first valve component and the second valve component are connected by a coupling component to form a valve sample; the first connecting component and the second connecting component maintain a centering structure so that the axial force can be transmitted to the valve sample.

[0021] In one embodiment, the system further comprises a first fixing member, and the first connecting component comprises:

[0022] A first middle piece, wherein a first end of the first middle piece is connected to the first fixing piece, and a second end of the first middle piece is connected to the first chuck piece;

[0023] A first chuck component is connected to the first ball head component and is used to clamp the ball head component;

[0024] A first ball head component, wherein a first end of the first ball head component is flexibly connected to the first chuck component, and a second end of the first ball head component is connected to a second end of the first valve component.

[0025] In one embodiment, the first end of the first ball head component is a sphere; a first through hole is provided in the center of the first chuck component, and a contact spherical surface is provided on the outer peripheral wall of the first through hole near the first end of the first ball head component; wherein the curvature of the contact spherical surface is the same as the curvature of the first end of the first ball head component, so as to ensure a flexible connection between the first ball head component and the first chuck component.

[0026] In one embodiment, the second end of the first ball head component is a hollow tube body, and a connecting groove is provided on the outer tube wall of the hollow tube body; the second end of the first ball head component is connected to the second end of the first valve component through the connecting groove.

[0027] In one embodiment, the first end of the first middle piece is a connecting rod, and the second end of the first middle piece is a cylindrical cavity; the two ends of the cylindrical cavity are threadedly connected to the two ends of the first chuck piece.

[0028] In one embodiment, the system further comprises a second fixing member, and the second connecting assembly comprises:

[0029] A second middle piece, a first end of the second middle piece is connected to the second fixing piece, and a second end of the second middle piece is connected to the second chuck piece;

[0030] A second chuck component is connected to the second ball head component and is used to clamp the second ball head component;

[0031] A second ball head component, wherein the first end of the second ball head component is flexibly connected to the second chuck component, and the second end of the second ball head component is connected to the second end of the second valve component.

[0032] The above-mentioned valve bonding strength determination method and valve bonding strength testing system, the method includes: curing the pre-connected valve parts to obtain valve samples, which can ensure the stability of the valve sample structure and avoid the valve sample loosening or deformation during the bonding strength determination process, which may affect the result of the valve bonding strength determination; controlling the actuator to apply axial force to the valve sample, determining the axial force value corresponding to the valve sample at the target time, and obtaining the target axial force value, which can simulate the actual load experienced by the valve in actual operation, thereby more realistically reflecting the bonding strength of the valve coating under the influence of a high-pressure environment; determining the bonding force of the valve sample according to the target axial force value, and determining the bonding strength of the valve sample according to the bonding force, which can improve the reliability of the valve bonding strength determination. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] FIG1 is an application environment diagram of a method for determining valve bonding strength in one embodiment;

[0035] FIG2 is a schematic flow chart of a method for determining valve bonding strength in one embodiment;

[0036] FIG3 is a schematic flow chart of a step of determining the bonding strength of a valve sample in one embodiment;

[0037] FIG4 is a schematic structural diagram of a valve bonding strength testing system in another embodiment;

[0038] FIG. 5 is a schematic diagram of the connection structure between the first valve component and the second valve component in one embodiment.

[0039] 10. Valve combination strength test system; 11. Valve component; 111. First valve component; 112. Second valve component; 12. Actuator; 13. Heat treatment component; 131. Heating component; 132. Temperature sensor; 133. Cooling fan; 14. Axial force sensor; 100. First connecting component; 102. First middle component; 104. First chuck component; 106. First ball head component; 200. Joint component; 300. Second connecting component; 302. Second middle component; 304. Second chuck component; 306. Second ball head component; 400. First fixing component; 500. Second fixing component. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0041] The valve combination strength determination method provided in the embodiment of the present application can be applied in the application environment shown in FIG. 1 . Among them, the terminal 20 communicates with the valve combination strength test system 10 through the network. The terminal 20 sends a valve combination strength determination request to the valve combination strength test system 10, and the valve combination strength test system 10 receives the valve combination strength determination request, solidifies the pre-connected valve member, and obtains a valve sample; controls the actuator to apply an axial force to the valve sample, determines the axial force value corresponding to the valve sample at the target time, and obtains the target axial force value; determines the combination force of the valve sample according to the target axial force value, and determines the combination strength of the valve sample according to the combination force. Among them, the terminal 20 can be, but is not limited to, various personal computers, laptops, smart phones, tablet computers, Internet of Things devices and portable wearable devices, and the Internet of Things devices can be smart speakers, smart TVs, smart air conditioners, smart car-mounted devices, etc. Portable wearable devices can be smart watches, smart bracelets, head-mounted devices, etc. The valve combination strength test system 10 can include a server.

[0042] In an exemplary embodiment, as shown in FIG2 , a method for determining valve joint strength is provided, and the method is described by taking the valve joint strength test system in FIG1 as an example, the valve joint strength test system includes a valve component and an actuator, and the method includes the following steps 202 to 206. Among them:

[0043] Step 202, curing the pre-connected valve components to obtain valve samples.

[0044] Exemplarily, the valve member may include an upper valve member and a lower valve member, the upper valve member and the lower valve member are connected, and the connected upper valve member and the lower valve member are cured to obtain a valve sample, and then the bonding strength of the valve sample is determined. Specifically, the connected upper valve member and the lower valve member are placed in a curing device, and the curing temperature and curing time are set to allow the connected upper valve member and the lower valve member to be cured. During the curing process, the curing temperature and the curing time are monitored in real time to ensure the curing structural strength of the upper valve member and the lower valve member. Among them, the curing temperature and the curing time can be set according to actual conditions.

[0045] Curing the pre-connected valve parts to obtain the valve sample can ensure the stability of the valve sample structure and avoid affecting the result of the valve bonding strength determination due to loosening or deformation of the valve sample during the bonding strength determination process.

[0046] Step 204, controlling the actuator to apply an axial force to the valve sample, determining the axial force value corresponding to the valve sample at the target time, and obtaining a target axial force value.

[0047] The actuator 12 may be an actuator cylinder, an electric motor, a servo drive, a hydraulic cylinder or a pneumatic cylinder, etc. The axial force refers to the force applied along the axis of the valve sample. Applying axial force to the valve sample can be used to evaluate the load and stress borne by the valve in the working state. The target time may be the time when the coating of the valve sample falls off.

[0048] Optionally, the valve joint strength test system 10 controls the actuator 12 to apply an axial force in the direction along the axis of the valve sample, and the system monitors the axial force borne by the valve sample in real time and records the value to ensure the accuracy and reliability of the test. When the system detects that the coating of the valve sample has fallen off, the axial force value corresponding to the moment when the coating of the valve sample falls off is determined, and the axial force value is recorded as the target axial force value. Among them, the actuator 12 can be connected to the valve sample through a connecting component, and the axial force is transmitted to the valve sample by linear motion or rotational motion, thereby ensuring the uniform distribution and effective transmission of the axial force.

[0049] The actuator 12 applies axial force to the valve sample to simulate the load condition of the valve under actual working conditions, thereby more realistically reflecting the bonding strength of the valve coating under the influence of a high-pressure environment and ensuring the safety and reliability of the valve in actual applications.

[0050] Step 206, determining the binding force of the valve sample according to the target axial force value, and determining the binding strength of the valve sample according to the binding force.

[0051] The bonding strength of the valve sample refers to the interaction between the coating of the valve sample and the substrate of the valve sample. The substrate refers to the underlying material to which the coating or other materials are attached, that is, the substrate is the metal material (such as aluminum alloy or steel) that constitutes the valve sample. The bonding strength of the valve sample refers to the bonding force per unit area, usually expressed in megapascals (MPa) or pounds per square inch (psi).

[0052] Exemplarily, when the actuator 12 applies an axial force to the valve sample, the valve sample begins to deform under this load. The system monitors the deformation of the valve sample in real time, and monitors the axial force borne by the valve sample in real time. When the system detects that the coating of the valve sample begins to fall off, the axial force value corresponding to the moment when the coating of the valve sample falls off is recorded, and the axial force value is recorded as the target axial force value, and the binding force of the valve sample is determined according to the target axial force value. Using a calculation formula to determine the binding strength of the valve sample according to the binding force can improve the reliability of determining the valve binding strength.

[0053] In the above-mentioned method for determining the valve bonding strength, the pre-connected valve components are cured to obtain a valve sample, which can ensure the stability of the valve sample structure and avoid affecting the result of the valve bonding strength determination due to loosening or deformation of the valve sample during the bonding strength determination process; the control actuator 12 applies an axial force to the valve sample, determines the axial force value corresponding to the valve sample at the target time, and obtains the target axial force value, which can simulate the actual load experienced by the valve in actual operation, thereby more realistically reflecting the bonding strength of the valve coating under the influence of a high-pressure environment; determines the bonding force of the valve sample according to the target axial force value, and determines the bonding strength of the valve sample according to the bonding force, which can improve the reliability of the valve bonding strength determination.

[0054] In an exemplary embodiment, the system also includes a coupling 200, and the valve component 11 includes a first valve component 111 and a second valve component 112. Before the pre-connected valve component 11 is cured, the system also includes: connecting the first end of the first valve component 111 to the first end of the coupling 200, and connecting the first end of the second valve component 112 to the second end of the coupling 200 to obtain a pre-connected valve component.

[0055] Exemplarily, the first valve member 111 may be an upper valve member, and the second valve member 112 may be a lower valve member 11. Before the pre-connected valve member is cured, the first end of the first valve member 111 is connected to the first end of the joint member 200 through a curing agent, and the first end of the second valve member 112 is connected to the second end of the joint member 200 through a curing agent, thereby obtaining a pre-connected valve member. After obtaining the pre-connected valve member, the system cures the pre-connected valve through the heat treatment component 13, and ensures uniform distribution of the heating temperature through the heat treatment component 13, thereby obtaining a valve sample.

[0056] Optionally, when the heat treatment component 13 performs a curing treatment on the pre-connected valve member according to the target curing temperature for a target curing time, it is detected whether the curing state of the pre-connected valve member has reached a preset curing state. If the curing state of the pre-connected valve member has not reached the preset curing state, the target curing temperature is maintained to continue to cure the pre-connected valve member until the curing state of the pre-connected valve member reaches the preset curing state, so that the curing agent can be fully cured, thereby ensuring the stability of the valve sample structure and avoiding the loosening or deformation of the valve sample during the bonding strength determination process, which may affect the result of the valve bonding strength determination. Among them, detecting whether the curing state of the pre-connected valve member has reached the preset curing state may include measuring the hardness of the curing agent after curing by a hardness testing instrument (such as a Shore hardness tester or a Rockwell hardness tester), and comparing it with a preset hardness standard to determine the curing state.

[0057] In this embodiment, before the pre-connected valve components are cured, the first end of the first valve component 111 is connected to the first end of the joint component 200, and the first end of the second valve component 112 is connected to the second end of the joint component 200, so that the consistency of the valve components 11 can be ensured during the determination of the valve bonding strength, and standardized testing can be implemented. At the same time, the pre-connected valve components provide a unified basis for the subsequent curing process, making it easier to control the temperature and time during the curing process, improving the uniformity and effectiveness of the curing, and thus ensuring the stability of the valve sample structure.

[0058] In an exemplary embodiment, before the control actuator 12 applies the axial force to the valve sample, the process further includes: adjusting the environmental parameters of the valve sample to make the valve sample fall within the target environmental parameter range.

[0059] The environmental parameters may include temperature, humidity, etc. A heat treatment component may be used to adjust the temperature parameters so that the valve sample is within a preset temperature range, and a humidity controller or a humidifier or dehumidifier may be used to adjust the moisture in the environment where the valve sample is located to maintain it at a set humidity level.

[0060] Optionally, the heat treatment component 13 may include a temperature sensor 132, a heating element 131, a heat dissipation fan 133, etc. The heat treatment component 13 may include multiple temperature sensors 132, which are used to transmit the temperature data of the environment in which the valve sample is located and the temperature data of the valve sample, and transmit the temperature data to the system. The system uses the heating element 131 and the heat dissipation fan 133 to adjust the temperature of the environment and the temperature of the valve sample according to the temperature data transmitted by the multiple temperature sensors 132, so that the temperature in the environment and the temperature of the valve sample are within a preset temperature range. Among them, the heating element 131 is used to increase or decrease the heating power, and the heat dissipation fan 133 is used to promote air circulation, ensure uniform temperature distribution, and avoid local overheating.

[0061] In this embodiment, different environmental parameters will affect the physical and chemical properties of the material. Adjusting the environmental parameters of the valve sample can avoid the error in the bonding strength test caused by environmental changes. By adjusting the environmental parameters of the valve sample so that the valve sample is within the target environmental parameter range, the bonding strength of the valve sample can be tested under conditions close to actual use, providing a more accurate environment for the testing of the valve sample and ensuring the reliability and adaptability of the test results.

[0062] In an exemplary embodiment, as shown in FIG3 , determining the bonding strength of the valve sample according to the bonding force includes steps 302 to 304. Among them:

[0063] Step 302, determining a contact area between a first end of a first valve member and a first end of a coupling member to obtain a target area.

[0064] Step 304, performing calculation processing on the bonding force and the target area to obtain the bonding strength of the valve sample.

[0065] Exemplarily, when the actuator 12 applies an axial force to the valve sample, the valve sample begins to deform under this load. The system monitors the deformation of the valve sample in real time, and monitors the axial force borne by the valve sample in real time. When the system detects that the coating of the valve sample begins to fall off, the axial force value corresponding to the moment when the coating of the valve sample falls off is recorded, and the axial force value is recorded as the target axial force value. The target axial force value is recorded as the binding force F of the valve sample.

[0066] The contact area between the first end of the first valve member 111 and the first end of the joint member 200 is determined to obtain a target area S. For example, the contact area can be measured using a three-dimensional measuring instrument or a laser rangefinder. According to the target area S and the bonding force F of the valve sample, the bonding strength R of the valve sample is calculated by calculation and processing as follows:

[0067]

[0068] In this embodiment, by determining the valve bonding strength, it is possible to provide a reference for optimizing the valve coating material and process, thereby ensuring the stability and reliability of the valve in a high temperature and high pressure environment.

[0069] In another embodiment, a valve joint strength determination method is provided, which is applied to a valve joint strength testing system 10, wherein the valve joint strength testing system 10 includes a valve component 11, a joint component 200, and an actuator 12, wherein the valve component 11 includes a first valve component 111 and a second valve component 112; the method includes:

[0070] The first end of the first valve member 111 is connected to the first end of the joint member 200, and the first end of the second valve member 112 is connected to the second end of the joint member 200, thereby obtaining pre-connected valve members.

[0071] The pre-connected valve components are cured to obtain valve samples.

[0072] The environmental parameters of the valve sample are adjusted to make the valve sample within the target environmental parameter range. The control actuator 12 applies an axial force to the valve sample, determines the axial force value corresponding to the valve sample at the target time, and obtains the target axial force value.

[0073] Determine the binding force of the valve sample according to the target axial force value; determine the contact area between the first end of the first valve member 111 and the first end of the coupling member 200 to obtain the target area; perform calculations on the binding force and the target area to obtain the binding strength of the valve sample.

[0074] Exemplarily, the ends of the first valve member and the second valve member are bonded to both sides of the joint member by high-temperature epoxy resin structural adhesive, and the bonded first valve member and the second valve member are placed in a heat treatment assembly. The temperature of the heat treatment assembly is set to a curing temperature of 50°C, and kept warm for 8 hours, and the curing agent is baked and cured to obtain a valve sample. After the temperature of the heat treatment assembly is set to an experimental temperature of 80°C and maintained for a preset period of time, the actuator is controlled to apply an axial force to the valve sample at a speed of 5mm / min, and the axial force applied to the valve sample is recorded in real time. When the system detects that the coating of the valve sample begins to fall off, the axial force value corresponding to the moment when the coating of the valve sample falls off is recorded, and the axial force value is recorded as the target axial force value to obtain the bonding force F of the valve sample. The contact surface between the first valve member and the second valve member and the joint member is annular, and the contact area between the first valve member and the second valve member and the first end of the joint member is determined. , is the outer radius of the ends of the first valve member and the second valve member, is the inner radius of the ends of the first valve member and the second valve member. According to the target area S and the bonding force F of the valve sample, the bonding strength of the valve sample is:

[0075]

[0076] After determining the bonding strength of the valve sample, the experimental temperature is adjusted multiple times to determine the bonding strength of the valve sample corresponding to different experimental temperatures, thereby enhancing the reliability of the valve bonding strength determination method.

[0077] In this embodiment, before the pre-connected valve components are cured, the first end of the first valve component 111 is connected to the first end of the coupling 200, and the first end of the second valve component 112 is connected to the second end of the coupling 200, so that the consistency of the valve component 11 can be ensured during the determination of the valve bonding strength, and standardized testing can be implemented. At the same time, the pre-connected valve components provide a unified basis for the subsequent curing process, making it easier to control the temperature and time during the curing process, improve the uniformity and effectiveness of the curing, and thus ensure the stability of the valve sample structure. The environmental parameters of the valve sample are adjusted so that the valve sample is within the target environmental parameter range, and the bonding strength of the valve sample can be tested under conditions close to actual use, providing a more accurate environment for the testing of the valve sample, and ensuring the reliability and adaptability of the test results. By determining the valve bonding strength, a reference can be provided for the optimization process of the valve coating material and process, thereby ensuring the stability and reliability of the valve under high temperature and high pressure environments.

[0078] In an exemplary embodiment, as shown in FIG. 4 , a valve bonding strength testing system 10 is provided, which is applicable to a method for determining the valve bonding strength, and the system includes: a first connecting component 100, connected to the first valve component 111, for supporting the first valve component 111; a second connecting component 300, connected to the second valve component 112, for supporting the second valve component 112; wherein the first valve component 111 and the second valve component 112 are connected by a coupling component 200 to form a valve sample; the first connecting component 100 and the second connecting component 300 maintain a centering structure so that the axial force can be transmitted to the valve sample.

[0079] Optionally, the manufacturing materials and coating conditions of the first valve member 111 and the second valve member 112 can remain the same, for example, the first valve member 111 and the second valve member 112 can both be made of high-strength aluminum alloy or titanium alloy materials to ensure the stability and durability of the first valve member 111 and the second valve member 112 under high temperature and high pressure environments, and the surfaces of the first valve member 111 and the second valve member 112 can both be coated with a layer of thermal insulation coating to be tested. The structures of the first connecting component 100 and the second connecting component can also remain the same, that is, the first connecting component 100 and the second connecting component can both include an intermediate component, a chuck component, and a ball head component, and the first connecting component 100 and the second connecting component can also include a fixing fixture, a guide component, a connecting rod, etc.

[0080] As shown in FIG5 , it is a schematic diagram of the connection structure of the first valve member 111 and the second valve member 112. The first valve member 111 and the second valve member 112 are connected by a joint member 200, and the first connection assembly 100 and the second connection assembly 300 maintain a centering structure, which means that the first connection assembly 100 and the second connection assembly 300 ensure that their central axes are consistent during installation to avoid offset or misalignment, and can ensure that the applied force is evenly distributed on the valve sample to avoid unnecessary stress concentration, thereby affecting the test results. In the process of determining the valve bonding strength, the actuator 12 applies an axial force to the valve sample, and the applied axial force can be directly transmitted to the joint of the valve sample through the first connection assembly 100 and the second connection assembly 300.

[0081] In this embodiment, the first connecting component 100 and the second connecting component 300 maintain a centering structure, which can ensure the effective transmission of axial force and avoid energy loss due to the gap or offset between the first connecting component 100 and the second connecting component 300, so that the valve sample can accurately reflect its bonding strength when subjected to force and provide reliable test data.

[0082] In an exemplary embodiment, the system also includes a first fixing member 400, and the first connecting assembly 100 includes: a first intermediate member 102, wherein the first end of the first intermediate member 102 is connected to the first fixing member 400, and the second end of the first intermediate member 102 is connected to the first chuck member 104; the first chuck member 104 is connected to the first ball head member 106 for clamping the ball head member; the first ball head member 106, wherein the first end of the first ball head member 106 is flexibly connected to the first chuck member 104, and the second end of the first ball head member 106 is connected to the second end of the first valve member 111.

[0083] Optionally, the system may further include a support assembly for supporting the first connection assembly 100, the second connection assembly 300 and other components. The support assembly includes a first support member and a second support member, and the first support member and the second support member are respectively connected to both ends of the support connection member. The first support member and the second support member may be fixedly connected to the support connection member by bolt fixing, clamping, etc.

[0084] The first middle piece 102 is fixedly connected to the first support piece through the first fixing piece 400, and the end of the first middle piece 102 away from the first fixing piece 400 is fixedly connected to the first chuck piece 104. The end of the first middle piece 102 connected to the first fixing piece 400 is the first end of the first middle piece 102, and the end of the first middle piece 102 connected to the first chuck piece 104 is the second end of the first middle piece 102.

[0085] In the previous exemplary embodiment, the first end of the first middle piece 102 is a connecting rod, and the second end of the first middle piece 102 is a cylindrical cavity; the two ends of the cylindrical cavity are threadedly connected to the two ends of the first chuck piece 104 .

[0086] Optionally, the shape of the connecting rod can be cylindrical or square column, and the end of the connecting rod close to the first fixing member 400 can be provided with a threaded hole, a clamping groove and other structures for fixed connection with the first fixing member 400. The cylindrical cavity can be integrally formed with the connecting rod, or fixedly connected to the connecting rod by means of screw connection, welding and the like. The diameter of the cylindrical cavity needs to be kept larger than the diameter of the connecting rod, and the diameter of the cylindrical cavity can be determined according to the size of the first chuck member 104. The shape of the cylindrical cavity can be set to a U-shaped opening, and the first chuck member 104 can be set at the opening of the cylindrical cavity and directly contact the inner wall corresponding to the opening of the cylindrical cavity. Exemplarily, an external thread can be provided on the inner wall corresponding to the opening of the cylindrical cavity, and the two ends of the first chuck member connected to the cylindrical cavity can be provided with an internal thread, and the cylindrical cavity and the first chuck member are connected by the external thread and the internal thread.

[0087] In this embodiment, the first connecting component 100 includes a first middle component 102, a first chuck component 104 and a first ball head component 106. The connection method between the connecting components can adaptively adjust the position of the valve sample to meet the testing requirements of valve prototypes of different specifications, thereby improving the versatility of the valve joint strength testing system 10.

[0088] In an exemplary embodiment, the first end of the first ball head component 106 is a sphere; a first through hole is provided at the center of the first chuck component 104, and a contact spherical surface is provided on the outer peripheral wall of the first through hole near the first end of the first ball head component 106; wherein the curvature of the contact spherical surface is the same as the curvature of the first end of the first ball head component 106, which is used to ensure the flexible connection between the first ball head component 106 and the first chuck component 104.

[0089] Exemplarily, a first through hole is provided at the center of the first chuck member 104, and the diameter of the first through hole is set according to the diameter of the second end of the first ball head member 106, and the diameter of the first through hole is much smaller than the diameter of the sphere at the first end of the first ball head member 106. A contact spherical surface is provided on the outer peripheral wall of the first through hole near the first end of the first ball head member 106, and the curvature of the contact spherical surface is the same as the curvature of the first end of the first ball head member 106, that is, the contact spherical surface can accommodate the first end of the first ball head member 106 and cooperate with the sphere at the first end of the first ball head member 106. That is, the first ball head member 106 can be inserted into the first through hole of the first chuck member 104, and the first end of the first ball head member 106 can be flexibly connected to the first chuck member 104, which can avoid causing excessive stress at a certain point due to the applied axial force, resulting in damage to the first connection assembly 100.

[0090] In the previous exemplary embodiment, the second end of the first ball head member 106 is a hollow tube body, and a connecting groove is provided on the outer tube wall of the hollow tube body; the second end of the first ball head member 106 is connected to the second end of the first valve member 111 through the connecting groove.

[0091] Exemplarily, the second end of the first valve member 111 may be a valve stem. The second end of the first ball head member 106 is a hollow tube, the outer diameter of which is smaller than the diameter of the first through hole, so that the second end of the first ball head member 106 can pass through the first through hole and the second end of the first ball head member 106 can be connected to the second end of the first valve member 111. The second end of the first ball head member 106 may be provided with a plurality of ridge structures or connection grooves on one side close to the first valve member 111, so that the second end of the first ball head member 106 can be conveniently connected to the first valve member 111.

[0092] In this embodiment, the second end of the first ball head 106 is inserted into the first through hole, so that the ball at the first end of the first ball head 106 is in direct contact with the outer peripheral wall of the first through hole to form a connection point, which is located at the center of the first chuck 104 and can evenly distribute the force applied to the first ball head 106; at the same time, the first ball head 106 and the first chuck 104 can also maintain coaxiality to ensure the stability between the first ball head 106 and the first chuck 104. Furthermore, the ball at the first end of the first ball head 106 is in direct contact with the outer peripheral wall of the first through hole, which can allow the first ball head 106 to rotate within a certain range, thereby more evenly dispersing the force applied to the valve sample, reducing local stress concentration, and improving the stability of the overall structure.

[0093] In an exemplary embodiment, the second end of the first ball head member 106 is connected to the second end of the first valve member 111 via a clamping nut.

[0094] Exemplarily, a groove is provided at the second end of the first ball head component 106 near the first valve component 111. After the second end of the first ball head component 106 is connected to the second end of the first valve component 111, a clamping nut is provided at the position of the groove to fix the first ball head component 106 and the first valve component 111, thereby enhancing the structural strength between the first ball head component 106 and the first valve component 111.

[0095] In this embodiment, a clamping nut is used to fix the first ball head component 106 and the first valve component 111. This fixing method can be applied to valve components 11 with different rod diameters, thereby achieving the purpose of enhancing the applicability of the first connecting assembly 100, thereby improving the flexibility of the valve joint strength testing system 10.

[0096] In an exemplary embodiment, the system also includes a second fixing member, and the second connecting assembly 300 includes: a second intermediate member 302, wherein the first end of the second intermediate member 302 is connected to the second fixing member, and the second end of the second intermediate member 302 is connected to the second chuck member 304; the second chuck member 304 is connected to the second ball head member 306 and is used to clamp the second ball head member 306; the second ball head member 306, wherein the first end of the second ball head member 306 is flexibly connected to the second chuck member 304, and the second end of the second ball head member 306 is connected to the second end of the second valve member 112.

[0097] The structure and connection method of the second connecting assembly 300 and the connection structure between the second connecting assembly 300 and the second fixing member and the second valve member 112 are similar to those of the first connecting assembly 100 , and are not described in detail herein.

[0098] Optionally, the system further includes an axial force sensor 14, which can be disposed in the second fixing member and connected to the output end of the actuator 12. The axial force sensor 14 is used to monitor in real time the force applied by the actuator 12 to the second middle member 302, wherein the force applied to the second middle member 302 is equal to the axial force applied to the valve sample.

[0099] The system also includes a heat treatment component 13, which can perform a curing treatment on the pre-connected valves, and ensure the uniform distribution of the heating temperature through the heat treatment component 13 to obtain a valve sample. The heat treatment component 13 is also used to adjust the temperature of the environment in which the valve sample is located. Optionally, the heat treatment component 13 may include a temperature sensor 132, a heating element 131 and a heat dissipation fan 133. The heating element 131 is used to increase or decrease the heating power, and the heat dissipation fan 133 is used to promote air circulation, ensure uniform temperature distribution, and avoid local overheating. The heat dissipation fan 133 is also used to reduce the temperature of the environment in which the valve sample is located. The temperature sensor 132 is used to transmit the temperature data of the environment in which the valve sample is located and the temperature data of the valve sample, and transmit the temperature data to the system.

[0100] The system may also include a controller, which is used to receive parameter data, such as temperature data of the environment in which the valve sample is located, temperature data of the valve sample, axial force data applied to the valve sample, etc. Optionally, the controller may include a temperature control unit, an axial force control unit, etc. The temperature control unit is connected to the heat treatment component 13 through a signal line, and the heat treatment component 13 can transmit temperature data to the temperature control unit through the signal line. The temperature control unit transmits corresponding control instructions to the heat treatment component 13 according to the temperature data, and the heat treatment component 13 performs corresponding operations according to the control instructions of the temperature control unit. The axial force control unit is connected to the axial force sensor 14 and the actuator 12 through a signal line. The axial force sensor 14 transmits the axial force data applied to the valve sample to the axial force control unit through the signal line. The axial force control unit transmits corresponding control instructions to the actuator 12 according to the axial force data applied to the valve sample, so that the actuator 12 performs corresponding operations according to the control instructions of the axial force control unit.

[0101] In this embodiment, the system controls the heat treatment component 13, the axial force sensor 14 and the actuator 12 accordingly through the controller, which can improve the temperature stability and the accuracy of the axial force loading control, and improve the efficiency and safety of the valve joint strength test.

[0102] Valve bonding strength testing system 10, the system comprises:

[0103] A first valve component 111 and a second valve component 112, wherein the first valve component 111 and the second valve component 112 are connected via a joint component 200 to form a valve sample component;

[0104] The first connecting component 100 is connected to the first valve component 111 and is used to support the first valve component 111; the first connecting component 100 includes: a first intermediate component 102, a first end of the first intermediate component 102 is connected to the first fixing component 400, and a second end of the first intermediate component 102 is connected to the first chuck component 104; the first chuck component 104 is connected to the first ball head component 106 and is used to clamp the ball head component; the first ball head component 106, a first end of the first ball head component 106 is flexibly connected to the first chuck component 104, and a second end of the first ball head component 106 is connected to the second end of the first valve component 111.

[0105] The second connecting component 300 is connected to the second valve component 112 and is used to support the second valve component 112; the second connecting component 300 includes: a second intermediate component 302, a first end of the second intermediate component 302 is connected to the second fixing component, and a second end of the second intermediate component 302 is connected to the second chuck component 304; the second chuck component 304 is connected to the second ball head component 306 and is used to clamp the second ball head component 306; the second ball head component 306, a first end of the second ball head component 306 is flexibly connected to the second chuck component 304, and a second end of the second ball head component 306 is connected to the second end of the second valve component 112.

[0106] The first end of the first middle piece 102 is a connecting rod, and the second end of the first middle piece 102 is a cylindrical cavity; both ends of the cylindrical cavity are threadedly connected to both ends of the first chuck piece 104 .

[0107] The first end of the first ball head component 106 is a sphere; a first through hole is provided in the center of the first chuck component 104, and a contact spherical surface is provided on the outer peripheral wall of the first through hole near the first end of the first ball head component 106; wherein the curvature of the contact spherical surface is the same as the curvature of the first end of the first ball head component 106, which is used to ensure the flexible connection between the first ball head component 106 and the first chuck component 104.

[0108] The second end of the first ball head member 106 is a hollow tube body, and a connecting groove is provided on the outer tube wall of the hollow tube body; the second end of the first ball head member 106 is connected to the second end of the first valve member 111 through the connecting groove.

[0109] The first connecting assembly 100 and the second connecting assembly 300 have the same structure, and the first connecting assembly 100 and the second connecting assembly 300 maintain a centering structure so that the axial force can be transmitted to the valve sample.

[0110] It should be understood that, although the steps in the flowcharts involved in the above embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0111] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0112] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0113] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0114] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A method for determining valve joint strength, characterized in that: Applied to a valve joint strength testing system, the valve joint strength testing system includes a valve component and an actuator, and the method includes: Performing a curing treatment on the pre-connected valve components to obtain valve samples; Controlling the actuator to apply an axial force to the valve sample, determining an axial force value corresponding to the valve sample at a target time, and obtaining a target axial force value; The binding force of the valve sample is determined according to the target axial force value, and the binding strength of the valve sample is determined according to the binding force.

2. The method according to claim 1, characterized in that The system further comprises a joint member, the valve member comprises a first valve member and a second valve member, and before curing the pre-connected valve members, the system further comprises: The first end of the first valve member is connected to the first end of the joint member, and the first end of the second valve member is connected to the second end of the joint member to obtain the pre-connected valve members.

3. The method according to claim 1, characterized in that: Before the control actuator applies the axial force to the valve sample, the method further comprises: The environmental parameters of the valve sample are adjusted so that the valve sample is within the target environmental parameter range.

4. The method according to claim 2, characterized in that: Determining the bonding strength of the valve sample according to the bonding force includes: determining a contact area between the first end of the first valve member and the first end of the engagement member to obtain a target area; The bonding force and the target area are processed by calculation to obtain the bonding strength of the valve sample.

5. A valve joint strength testing system, characterized in that: The method for determining valve bonding strength according to any one of claims 1 to 4, wherein the system comprises: a first connecting assembly connected to the first valve member and used to support the first valve member; a second connecting assembly connected to the second valve member and used to support the second valve member; Wherein, the first valve component and the second valve component are connected by a joint to form a valve sample component; the first connecting component and the second connecting component maintain a centering structure so that the axial force can be transmitted to the valve sample component.

6. The system according to claim 5, characterized in that The system further comprises a first fixing member, wherein the first connecting assembly comprises: A first middle piece, wherein a first end of the first middle piece is connected to the first fixing piece, and a second end of the first middle piece is connected to the first chuck piece; A first chuck component connected to the first ball head component and used for clamping the ball head component; A first ball head component, wherein a first end of the first ball head component is flexibly connected to the first chuck component, and a second end of the first ball head component is connected to a second end of the first valve component.

7. The system according to claim 6, characterized in that The first end of the first ball head component is a sphere; a first through hole is provided in the center of the first chuck component, and a contact spherical surface is provided on the outer peripheral wall of the first through hole close to the first end of the first ball head component; wherein the curvature of the contact spherical surface is the same as the curvature of the first end of the first ball head component, so as to ensure a flexible connection between the first ball head component and the first chuck component.

8. The system according to claim 6, characterized in that The second end of the first ball head component is a hollow tube body, and a connecting groove is provided on the outer tube wall of the hollow tube body; the second end of the first ball head component is connected to the second end of the first valve component through the connecting groove.

9. The system according to claim 6, characterized in that The first end of the first middle piece is a connecting rod, and the second end of the first middle piece is a cylindrical cavity; the two ends of the cylindrical cavity are threadedly connected to the two ends of the first chuck piece.

10. The system according to claim 5, characterized in that The system further comprises a second fixing member, wherein the second connecting assembly comprises: a second middle piece, wherein a first end of the second middle piece is connected to the second fixing piece, and a second end of the second middle piece is connected to the second chuck piece; A second chuck member connected to the second ball head member and used for clamping the second ball head member; A second ball head component, wherein a first end of the second ball head component is flexibly connected to the second chuck component, and a second end of the second ball head component is connected to a second end of the second valve component.

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