Temperature-measurable alloy casting mold device

Abstract

The application discloses a temperature-measurable alloy casting mold device, which comprises a mold and a temperature-measuring assembly. The mold is composed of at least two mold parts which can be separated from each other, and the joint surface of the mold parts is a mold closing surface. The temperature-measuring assembly is arranged in a mounting groove formed on the mold closing surface for accommodating the temperature-measuring assembly. The mounting groove is opened along with the separation of the mold parts, so that the temperature-measuring assembly can be replaced. The application has the effects of multi-point temperature measurement and convenient dismounting and positioning.

Description

Technical Field

[0001] This application relates to the field of experimental equipment technology for alloy material preparation and casting, and in particular to a temperature-measuring alloy casting mold device. Background Technology

[0002] In alloy smelting and casting research, in order to study the heat conduction behavior and phase transformation characteristics during solidification, it is often necessary to record the temperature changes at different locations in real time to obtain accurate solidification curve data. However, traditional small casting molds have simple structures and single functions, making it difficult to achieve accurate, multi-point measurement of internal temperatures.

[0003] In the prior art, some molds can achieve adjustment of cooling rate. For example, Chinese patent number CN216115360U discloses a composite casting device with rapid cooling function, which achieves rapid cooling by injecting cold water into the internal channel of the mold. However, the cooling rate usually relies on experience to judge and lacks a temperature measurement unit.

[0004] In small-scale metal casting experiments requiring solidification temperature measurement, thermocouples are typically embedded directly in the molten metal. Due to the high temperature and flow impact of the molten metal, the thermocouple probes are prone to bending, displacement, or damage, resulting in inconsistent temperature measurement points and significant measurement errors. Furthermore, exposed wires are susceptible to short circuits with the mold wall or molten metal, causing data distortion.

[0005] On the other hand, the solidification process of alloys is extremely sensitive to the cooling rate, and different cooling conditions can significantly affect the microstructure and properties of the alloy. Traditional molds often lack effective cooling control mechanisms, making it difficult to flexibly adjust the local or overall cooling rate, thus limiting the diversity and precision of experiments.

[0006] Therefore, developing an alloy casting mold with a simple structure, capable of multi-point temperature measurement, easy to disassemble and position, and capable of adjusting the cooling rate locally according to experimental needs has important research and application value. Utility Model Content

[0007] To improve the current situation, this application provides a temperature-measuring alloy casting mold device.

[0008] The temperature-measuring alloy casting mold device provided in this application adopts the following technical solution: A temperature-measuring alloy casting mold device includes: a mold, which is composed of at least two separable mold parts joined together, the joint interface of the mold parts being a mold closing surface; and a temperature measuring component, which is disposed in a mounting groove formed on the mold closing surface to accommodate it, the mounting groove opening as the mold parts are separated to allow replacement of the temperature measuring component.

[0009] By adopting the above technical solution, if the temperature measuring component fails due to high temperature or other reasons during routine maintenance, a pair of mold parts can be quickly separated, the mounting slot can be opened, the damaged temperature measuring component can be taken out and replaced, which significantly reduces maintenance costs and ensures that the mold can be quickly restored to experimental use.

[0010] Preferably, the mounting groove is composed of half-grooves correspondingly provided on the mold closing surfaces of at least two mold parts, which are spliced ​​together when the mold is closed.

[0011] Preferably, the mounting slot includes a narrow slot and a microchannel; the temperature measuring component includes a protective sleeve and a thermocouple; the protective sleeve is embedded in the narrow slot, and one end of the thermocouple passes through the microchannel and is disposed inside the protective sleeve.

[0012] By adopting the above technical solution, after the protective sleeve is embedded in the mounting groove, it can provide physical protection for the internal thermocouple, blocking most of the high-temperature impact from the molten metal in the cavity and preventing damage to the thermocouple. At the same time, the preset narrow groove and the protective sleeve can fix the position of the thermocouple's temperature measuring point, reducing measurement errors caused by the offset of the measuring point.

[0013] Preferably, the protective sleeve is a high-purity alumina ceramic tube.

[0014] By adopting the above technical solution, the high-purity alumina ceramic tube can withstand temperatures up to 1600℃, which can fully meet the temperature requirements of most alloys during the casting process and ensure the smooth progress of the experiment.

[0015] A temperature-measuring alloy casting mold device includes: a mold, which is assembled from at least two mold parts; a temperature measuring component disposed between the mold parts; and a pair of rotary propulsion devices disposed on the outside of the mold for applying clamping force to the mold; wherein at least one rotary propulsion device is integrated with a torque value display mechanism for displaying torque value during the application of clamping force.

[0016] By adopting the above technical solution, a pair of rotating propulsion devices can apply clamping force to the mold from both sides, ensuring that the mold closing surfaces fit tightly and preventing molten metal from flowing out from the gaps. At the same time as clamping, the torque value display mechanism can display the current torque value, allowing the operator to accurately control the clamping force according to the preset safe torque range. This ensures both the mold closing sealing and avoids damage to the temperature measuring components in the mounting slot due to excessive clamping force, thus providing an objective and quantitative basis for the mold closing operation.

[0017] Preferably, the rotary propulsion device includes: a screw threaded to the platform, an end washer mounted on one end of the screw, and a manual operating component for driving the screw to rotate.

[0018] By adopting the above technical solution, rotating the manual operating component can drive the corresponding screw to advance linearly towards the mold, so that the end pad abuts against the mold side wall; at the same time, the end pad increases its contact area with the mold, reduces local pressure concentration, and prevents the mold side wall from being pressed out or deformed.

[0019] Preferably, the torque display mechanism is a digital torque meter, which is connected between the manual operating component and the screw.

[0020] By adopting the above technical solution, when the manual operating component is rotated to drive the screw to advance, the clamping force of the screw on the mold will be converted into torque through the thread transmission. That is, the greater the clamping force, the greater the friction between the screw and the threaded hole, and the greater the friction between the end pad and the mold. The greater the resistance that needs to be overcome to drive the screw to rotate, the higher the value displayed by the digital torque meter. This provides a quantitative basis for the mold closing operation and ensures the stability and repeatability of the experimental process.

[0021] Preferably, a through-hole mold that acts as a riser is installed on the top of the mold.

[0022] By adopting the above technical solution, the through-hole mold can be used as a riser to continuously replenish the molten metal into the cavity during the alloy solidification process, filling the gaps caused by solidification shrinkage, thereby effectively preventing defects such as shrinkage cavities in the casting and ensuring the quality of the casting.

[0023] Preferably, it also includes a modular component adjacent to the mold, which is a heat insulation plate, a metal heat-conducting block, or a mold sleeve with a circulating cooling channel.

[0024] By adopting the above technical solutions, the module components can be adjusted according to experimental requirements. When slow cooling conditions need to be simulated, heat insulation plates are selected to reduce heat loss from the mold. When a faster cooling rate is required, metal heat-conducting blocks are selected to accelerate heat dissipation and improve the cooling speed. When precise temperature control is required, mold sleeves with circulating cooling channels are selected to meet the diverse cooling rate requirements of different alloy solidification experiments through fluid circulation.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The installation slot allows for the installation of temperature measuring components during mold closing to meet the needs of multi-position temperature measurement, and it can also be opened as the mold is separated to facilitate the quick installation and removal of the temperature measuring components. 2. By setting the torque value display mechanism, the current torque value can be fed back in real time to ensure that the clamping force is within the preset safety range. This ensures reliable mold closing and sealing, and avoids damage to the temperature measuring components due to excessive clamping, providing a quantitative basis for mold closing operation. 3. The mold device is highly modular, easy to disassemble and clean, and has good functional expandability and strong practicality. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a temperature-measuring alloy casting mold device in this embodiment; Figure 2 This is a side view of the mold assembly in this embodiment; Figure 3 This is a cross-sectional view of the temperature measuring component in this embodiment; Figure 4 This is a schematic diagram of the structure of the mold with a through hole in this embodiment; Figure 5 This is a schematic diagram of the mold with modular components installed in this embodiment; Reference numerals: 1. Mold; 101. Mold body; 102. Mounting groove; 103. Half groove; 104. Narrow groove; 105. Miniature channel; 2. Temperature measuring component; 201. Protective sleeve; 202. Thermocouple; 3. Platform; 301. Threaded hole; 4. Rotary propulsion device; 401. Screw; 402. End pad; 403. Manual operating component; 404. Torque display mechanism; 5. Through-hole mold; 6. Module component. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0028] This application discloses a temperature-measuring alloy casting mold device.

[0029] Reference Figure 1 and Figure 2 A temperature-measuring alloy casting mold device includes: a mold 1, which is composed of at least two separable mold parts 101 joined together, the joint interface of the mold parts 101 being a mold closing surface; and a temperature measuring component 2, which is disposed in a mounting groove 102 formed on the mold closing surface to accommodate it, the mounting groove 102 opening as the mold parts 101 are separated to allow replacement of the temperature measuring component 2.

[0030] Mold 1 is made of H13 steel to ensure its service life and dimensional stability under repeated impacts from molten metal.

[0031] The cavity formed after the mold parts 101 are closed is called a mold cavity. The surface of the mold cavity of mold 1 is polished and the roughness Ra is no more than 0.8μm. It is also machined with a draft angle of 2°-5°.

[0032] On the mold closing surfaces of a pair of mold parts 101, there are corresponding cylindrical bosses and grooves. When the mold is closed, the bosses can be smoothly inserted into the grooves to achieve high-precision positioning.

[0033] The mold 1 has three sets of horizontally arranged mounting slots 102 distributed along the vertical direction. Each mounting slot 102 is equipped with a temperature measuring component 2, which can record the temperature change data at the upper, middle and lower positions of the cavity.

[0034] Furthermore, the mounting groove 102 is composed of half-grooves 103 correspondingly provided on the mold closing surfaces of at least two mold parts 101, which are spliced ​​together during mold closing.

[0035] Reference Figures 1 to 3 Furthermore, the mounting groove 102 includes a narrow groove 104 and a micro channel 105; the narrow groove 104 is located on the inner wall of the mold 1, with a diameter of 3-5 mm and a depth of 5-10 mm; the micro channel 105 has a diameter of 1-2 mm.

[0036] The temperature measuring component 2 includes a protective sleeve 201 and a thermocouple 202; the outer diameter and inner diameter of the protective sleeve 201 correspond to the diameter of the narrow groove 104 and the diameter of the microchannel 105, respectively; the length of the protective sleeve 201 is 5-10mm, which corresponds to the depth of the narrow groove 104.

[0037] Thermocouple 202 is a type K armored thermocouple with a diameter of 1-2 mm, corresponding to the diameter of the microchannel 105. The probe end of thermocouple 202 extends into the protective sleeve 201 through the microchannel 105. At this time, the probe end of thermocouple 202 is 2-5 mm away from the inner wall of the cavity, so that thermocouple 202 can accurately measure the temperature of the molten metal while avoiding excessive exposure of thermocouple 202 to the molten metal. The other end of thermocouple 202 is electrically connected to an external temperature measuring instrument through a wire.

[0038] Reference Figure 3 Furthermore, the protective sleeve 201 is a high-purity alumina ceramic tube.

[0039] Reference Figure 1 Furthermore, the mold 1 is placed on the platform 3, and the platform 3 is provided with a pair of rotating propulsion devices 4, which can apply clamping force to the mold 1; wherein, at least one of the rotating propulsion devices 4 is integrated with a torque value display mechanism 404, which can display the torque value during the application of clamping force.

[0040] Furthermore, the rotary propulsion device 4 includes a screw 401 that is threadedly engaged with a threaded hole 301 on the platform 3, an end washer 402 mounted on one end of the screw 401, and a manual operating component 403 that drives the screw 401 to rotate.

[0041] Furthermore, the torque display mechanism 404 is a digital torque meter. The input end of the digital torque meter is fixedly connected to the screw 401 via an adapter, and the other end is fixedly connected to the manual operating component 403.

[0042] Reference Figure 4Furthermore, a through-hole mold 5, which acts as a riser, is added to the top of mold 1.

[0043] Reference Figure 5 Furthermore, it also includes a module component 6 adjacent to the mold 1, which is a heat insulation plate, a metal heat-conducting block, or a mold sleeve with a circulating cooling channel.

[0044] Module component 6 is a heat insulation plate, a metal heat-conducting block, or a mold sleeve with a circulating cooling channel. Module component 6 can be adjusted according to experimental requirements. Module component 6 is placed close to mold 1. A pair of rotating propulsion devices 4 can press a pair of end pads 402 against both sides of module component 6, so that module component 6 and mold 1 can be tightly fitted.

[0045] The usage process of a temperature-measuring alloy casting mold device disclosed in this application embodiment is as follows: 1. Clean the surface of the pair of mold parts 101 to remove residual impurities or metal debris.

[0046] 2. First, insert the thermocouple 202 into the protective sleeve 201, and then embed it into the narrow groove 104 as a whole, ensuring that the front end of the protective sleeve 201 is flush with or slightly recessed from the inner wall of the cavity, so as not to affect the shape of the cavity and the surface quality of the sample. The other end of the thermocouple 202 extends out of the mold through the micro channel 105 and is connected to the external temperature measuring instrument through a wire.

[0047] 3. Push the pair of mold parts 101 to close the mold, then place the mold 1 stably in the center of the platform 3, and ensure that the two sides of the mold 1 correspond to the pair of rotating propulsion devices 4.

[0048] 4. Rotate the manual operating parts 403 on both sides, and drive the corresponding end pads 402 to initially approach and slightly abut against the side wall of the mold 1 through the corresponding screws 401. Then, focus on rotating the manual operating part 403 on the side with the torque value display 404, and observe the change of the value of the torque value display 404. Stop rotating when the value reaches the preset safety range. At this time, under the coordinated action of a pair of rotating propulsion devices 4, the sealing of the mold 1 can be guaranteed, and damage to the protective sleeve 201 and thermocouple 202 can be avoided.

[0049] 5. Place a through-hole mold 5 above mold 1 as a casting riser, and slowly pour the molten metal into the cavity of mold 1. The temperature change data of the upper, middle and lower positions of the cavity can be recorded in real time by an external temperature measuring instrument.

[0050] 6. After the alloy has completely solidified, rotate the manual operating parts 403 on both sides in the opposite direction to release the clamping force on the mold 1. At this time, the pair of mold parts 101 can be separated, and the temperature measuring component 2 and the solidified alloy sample can be taken out to complete one casting experiment.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A temperature-measuring alloy casting mold device, characterized in that, include: The mold (1) is composed of at least two separable mold parts (101) joined together, the joint interface of the mold parts (101) being a mold mating surface; and Temperature measuring component (2) is disposed in a mounting groove (102) formed on the mold closing surface to accommodate it. The mounting groove (102) opens as the mold body (101) separates to allow replacement of the temperature measuring component (2).

2. The apparatus according to claim 1, characterized in that: The mounting groove (102) is formed by splicing together the half grooves (103) correspondingly provided on the mold closing surfaces of the at least two mold parts (101) during mold closing.

3. The apparatus according to claim 2, characterized in that: The mounting slot (102) includes a narrow slot (104) and a microchannel (105); the temperature measuring component (2) includes a protective sleeve (201) and a thermocouple (202); the protective sleeve (201) is embedded in the narrow slot (104), and one end of the thermocouple (202) passes through the microchannel (105) and is disposed in the protective sleeve (201).

4. The apparatus according to claim 3, characterized in that: The protective sleeve (201) is a high-purity alumina ceramic tube.

5. A temperature-measuring alloy casting mold device, characterized in that, include: The mold (1) is assembled from at least two mold parts (101); Temperature measuring component (2) is disposed between the mold sections (101); as well as A pair of rotary propulsion devices (4) are disposed on the outside of the mold (1) for applying clamping force to the mold (1); At least one of the rotary propulsion devices (4) is integrated with a torque value display mechanism (404) for displaying the torque value during the application of clamping force.

6. The apparatus according to claim 5, characterized in that: The rotary propulsion device (4) includes a screw (401) threadedly engaged with the platform (3), an end washer (402) mounted on one end of the screw (401), and a manual operating component (403) for driving the screw (401) to rotate.

7. The apparatus according to claim 6, characterized in that: The torque display mechanism (404) is a digital torque meter, which is connected between the manual operating component (403) and the screw (401).

8. The apparatus according to claim 1 or 5, characterized in that: The top of the mold (1) is fitted with a through-hole mold (5) that serves as a riser.

9. The apparatus according to claim 5, characterized in that: It also includes a module assembly (6) adjacent to the mold (1), the module assembly (6) being a heat insulation plate, a metal heat-conducting block, or a mold sleeve with a circulating cooling channel.

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