High-temperature heating type pressure plate for testing machine

Abstract

The utility model belongs to the field of testing machines, and particularly relates to a high-temperature heating type pressure plate for a testing machine, which comprises two high-temperature pressure plates, a heating pipe and a groove, and the two high-temperature pressure plates are respectively arranged on a support table at the lower part of the testing machine and the output end of a hydraulic system at the upper part of the testing machine; a tested piece is placed between the two high-temperature pressure plates, a plurality of grooves are formed in the surfaces, far away from the tested piece, of the high-temperature pressure plates in the horizontal direction, and the heating pipes are arranged in the grooves; according to the device, the pressure plate can be heated at a high temperature, a high-temperature environment required by a tested piece is met, the high-temperature environment can be synchronously created when the tested piece is pressurized, the temperature of the tested piece is kept, and the test accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the field of testing machines, and particularly to a high-temperature heating type pressure plate for a testing machine. Background Art

[0002] When a testing machine performs high-temperature and high-pressure operations on a test workpiece, the existing pressure plate heats the pressure plate by punching holes and inserting stainless steel. This heating method can only heat up to 400 °C at most, and the temperature does not meet the requirements. When testing large workpieces, a large furnace is needed for heating, but the large furnace cannot perform pressure treatment on the test workpiece at the same time; if the workpiece is heated to a high temperature externally and then placed under a pressure testing machine for pressurization, the temperature cannot be maintained and the test data is inaccurate. Therefore, there is an urgent need for a device that can perform high-temperature heating and pressurization on the test piece.

[0003] In view of the above existing problems, a high-temperature heating type pressure plate for a testing machine is specifically proposed. Summary of the Utility Model

[0004] The utility model aims at the problems existing above, and specifically designs a high-temperature heating type pressure plate for a testing machine. This device can perform high-temperature heating on the pressure plate, meet the high-temperature environment required by the test piece, can create a high-temperature environment synchronously when pressurizing the test piece, maintain the temperature of the test piece, and improve the accuracy of the test.

[0005] To achieve the above object, the utility model provides a high-temperature heating type pressure plate for a testing machine, including: a high-temperature pressure plate, a heating pipe and a groove. There are two high-temperature pressure plates, and the two high-temperature pressure plates are respectively installed on the support platform at the lower part of the testing machine and the output end of the hydraulic system at the upper part of the testing machine. A test piece is placed between the two high-temperature pressure plates. A plurality of grooves are horizontally opened on the surface of the high-temperature pressure plate away from the test piece, and the heating pipe is placed in the groove.

[0006] In this way, the upper and lower pressure plates of the testing machine are both high-temperature pressure plates. Through the grooves opened on the high-temperature pressure plate, the heating pipe is installed in the groove, and the heat is transferred to the surface of the high-temperature pressure plate, which can provide a temperature greater than 400 degrees Celsius and provide a high-temperature environment for the test piece.

[0007] Furthermore, it further includes a reflection device. The reflection device is in a plate-shaped structure. There are several reflection devices, and several reflection devices are installed in the groove. The heating pipe is installed between the reflection device and the groove. The reflection device can enclose the heating pipe in the groove and reflect the heat, reducing the loss of heat transfer and improving the heating effect of the high-temperature pressure plate.

[0008] Further, it further includes an auxiliary pressure plate, which is fixedly connected to the side of the high-temperature pressure plate away from the workpiece to be measured. The auxiliary pressure plate can increase the force-bearing area of the hydraulic system on the high-temperature pressure plate and prevent damage to the high-temperature pressure plate caused by high pressure.

[0009] Further, it further includes a cooling pressure plate, which is fixedly connected to the side of the auxiliary pressure plate away from the high-temperature pressure plate, and the cooling pressure plate is connected to the output end of the hydraulic system.

[0010] Further, the cooling pressure plate includes a water-cooling part, which is of a channel structure, and cold water flows through the water-cooling part.

[0011] In the above way, the cooling pressure plate can prevent high temperature from being transferred to other components of the testing machine and prevent the machine from being damaged by high temperature.

[0012] Further, it further includes vent holes. Through holes are provided in the middle parts of the high-temperature pressure plate and the auxiliary pressure plate. The vent hole is provided in the middle part of the bottom surface of the cooling pressure plate and communicates with the outside through the side surface of the cooling pressure plate, and the vent holes communicate with each other. When heated at high temperature, high-temperature gas is generated and the high-temperature gas is released through the vent holes.

[0013] Further, it further includes a thermocouple, and the thermocouple is installed inside the high-temperature pressure plate.

[0014] Further, it further includes a heat-insulating layer, and the heat-insulating layer is sleeved outside the high-temperature pressure plate, the auxiliary pressure plate and the cooling pressure plate.

[0015] Further, the heating tube is a quartz tube.

[0016] Further, the reflection device is a stainless-steel foil.

[0017] In summary, the present utility model has the following advantages and beneficial technical effects:

[0018] 1. The high-temperature heatable pressure plate for a testing machine of the present utility model can provide a higher heating temperature to the workpiece to be measured, and can provide a high-pressure environment to the workpiece to be measured again while maintaining the high temperature, ensuring the test environment of the workpiece to be measured and improving the data accuracy of the test;

[0019] 2. The high-temperature heatable pressure plate for a testing machine of the present utility model reflects the heat dissipated by the heating tube back to the high-temperature pressure plate again through the reflection device, can reduce heat loss and improve the heating efficiency;

[0020] 3. The high-temperature heatable pressure plate for a testing machine of the present utility model increases the pressure-bearing area of the high-temperature pressure plate through the auxiliary pressure plate and prevents damage to the high-temperature pressure plate;

[0021] 4. In the present utility model, a high-temperature heatable pressure plate for a testing machine can prevent high temperature from being transferred to other parts of the testing machine through the cooling pressure plate, avoiding damage to the machine caused by high temperature. Description of the Drawings

[0022] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, where:

[0023] Figure 1 is a schematic structural diagram of a high-temperature heatable pressure plate for a testing machine according to the present utility model;

[0024] Figure 2 is a top view of the high-temperature pressure plate of a high-temperature heatable pressure plate for a testing machine according to the present utility model;

[0025] Figure 3 is a cross-sectional view of the high-temperature pressure plate of a high-temperature heatable pressure plate for a testing machine according to the present utility model;

[0026] Figure 4 is a schematic installation effect diagram of a high-temperature heatable pressure plate for a testing machine according to the present utility model;

[0027] Figure 5 is a top view of a high-temperature heatable pressure plate for a testing machine according to the present utility model after installation.

[0028] The reference numerals in the drawings are:

[0029] 1 - High-temperature pressure plate; 2 - Heating tube; 3 - Groove; 4 - Reflection device; 5 - Auxiliary pressure plate; 6 - Cooling pressure plate; 61 - Water-cooling part; 7 - Thermocouple; 8 - Vent hole; 9 - Heat-insulating layer; 10 - Support platform; 11 - Hydraulic system; 12 - Test piece. Detailed Embodiment

[0030] The following further elaborates on the present utility model in detail. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar components or components with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model. Figures 1 - 5

[0031] ​In the description of the present utility model, unless otherwise clearly specified and defined, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium. It can also be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "right", etc. are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0033] As Figure 1 and Figure 4 shown, it includes: a high-temperature pressure plate 1, a heating tube 2, and a groove 3. There are two high-temperature pressure plates 1, and the two high-temperature pressure plates 1 respectively serve as the upper and lower pressure plates in the testing machine. The two high-temperature pressure plates 1 are respectively installed on the support platform 10 at the lower part of the testing machine and the output end of the hydraulic system 11 at the upper part of the testing machine. The lower high-temperature pressure plate 1 plays a supporting role for the lower pressure plate, and the upper high-temperature pressure plate 1 can move under the drive of the hydraulic system 11. A test piece 12 is placed between the two high-temperature pressure plates 1, and the upper high-temperature pressure plate 1 applies pressure to the test piece 12. A plurality of grooves 3 are provided on the surface of the high-temperature pressure plate 1 away from the test piece 12 in the horizontal direction. The heating tube 2 is placed in the groove 3. It also includes a thermocouple 7. A hole is provided inside the high-temperature pressure plate 1, and the thermocouple 7 is inserted into the hole for monitoring the temperature of the high-temperature pressure plate 1. The heating tube 2 is a quartz tube.

[0034] As Figure 1 、 Figure 2 and Figure 3 shown, it also includes a reflection device 4. The reflection device 4 is in the shape of a plate. The reflection device 4 is made of stainless steel foil. There are several reflection devices 4, and the number is equal to the number of grooves 3 on the high-temperature pressure plate 1. The several reflection devices 4 are installed in the grooves 3 through bolts. The heating tube 2 is installed between the reflection device 4 and the groove 3, and the heating tube 2 is clamped to the surface of the reflection device 4 facing the groove 3 through a claw.

[0035] As Figure 1 shown, it also includes an auxiliary pressure plate 5. The auxiliary pressure plate 5 is fixedly connected to the surface of the high-temperature pressure plate 1 away from the test piece 12 through bolts.

[0036] As Figure 1As shown in the figure, it further includes a cooling pressure plate 6. The cooling pressure plate 6 is fixedly connected to the side of the auxiliary pressure plate 5 away from the high-temperature pressure plate 1 by bolts, and the cooling pressure plate 6 is connected to the output end of the hydraulic system 11.

[0037] The cooling pressure plate 6 includes a water-cooled part 61. The water-cooled part 61 is of a channel structure and is located inside the cooling pressure plate 6. Cold water flows through the water-cooled part 61.

[0038] As Figure 1 and Figure 4 As shown in the figure, it further includes a ventilation hole 8. Through ventilation holes 8 are provided in the middle parts of the high-temperature pressure plate 1 and the auxiliary pressure plate 5. A ventilation hole 8 is provided in the middle of the bottom surface of the cooling pressure plate 6 and communicates with the outside through the side surface of the cooling pressure plate 6. The ventilation holes 8 communicate with each other.

[0039] The cooling pressure plate 6, the auxiliary pressure plate 5 and the high-temperature pressure plate 1 are sequentially connected under the hydraulic system 11 of the testing machine, and the support table 10 is sequentially connected with the cooling pressure plate 6, the auxiliary pressure plate 5 and the high-temperature pressure plate 1 from bottom to top.

[0040] It further includes a heat insulation layer 9. The heat insulation layer 9 is sleeved outside the high-temperature pressure plate 1, the auxiliary pressure plate 5 and the cooling pressure plate 6.

[0041] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A high temperature heatable pressure plate for a testing machine, characterized in that: include: A high-temperature pressure plate (1), a heating tube (2) and a groove (3), wherein there are two high-temperature pressure plates (1), and the two high-temperature pressure plates (1) are respectively mounted on a support platform (10) at the bottom of the testing machine and on an output end of a hydraulic system (11) at the top of the testing machine, a test piece (12) is placed between the two high-temperature pressure plates (1), and a plurality of grooves (3) are provided in a horizontal direction on a side of the high-temperature pressure plate (1) away from the test piece (12), and the heating tube (2) is placed in the groove (3).

2. A high temperature heatable pressure plate for a testing machine according to claim 1, characterized in that: It also comprises a reflecting device (4), the reflecting device (4) being a plate-shaped structure, there being a plurality of reflecting devices (4), the plurality of reflecting devices (4) being installed in the groove (3), and the heating tube (2) being installed between the reflecting device (4) and the groove (3).

3. A high temperature heatable pressure plate for a testing machine according to claim 2, characterized in that: It also comprises an auxiliary pressure plate (5), wherein the auxiliary pressure plate (5) is fixedly connected to a side of the high-temperature pressure plate (1) away from the test piece (12).

4. A high temperature heatable pressure plate for a testing machine according to claim 3, characterized in that: It also includes a cooling pressure plate (6), wherein the cooling pressure plate (6) is fixedly connected to a side of the auxiliary pressure plate (5) away from the high-temperature pressure plate (1), and the cooling pressure plate (6) is connected to an output end of the hydraulic system (11).

5. A high temperature heatable pressure plate for a testing machine according to claim 4, characterized in that: The cooling platen (6) comprises a water cooling portion (61), the water cooling portion (61) being a channel structure, and cold water flows through the water cooling portion (61).

6. A high temperature heatable pressure plate for a testing machine according to claim 4, characterized in that: It also includes a vent hole (8), wherein the middle of the high-temperature pressure plate (1) and the auxiliary pressure plate (5) are provided with a through vent hole (8), the middle of the bottom surface of the cooling pressure plate (6) is provided with the vent hole (8) and is communicated with the outside through the side surfaces of the cooling pressure plate (6), and the vent holes (8) are all communicated with each other.

7. A high temperature heatable pressure plate for a testing machine according to claim 1, characterized in that: It also includes a thermocouple (7), and the thermocouple (7) is installed inside the high-temperature pressure plate (1).

8. A high temperature heatable pressure plate for a testing machine according to claim 4, characterized in that: It also comprises a heat-insulating layer (9), wherein the heat-insulating layer (9) is sleeved on the outside of the high-temperature pressure plate (1), the auxiliary pressure plate (5) and the cooling pressure plate (6).

9. A high temperature heatable pressure plate for a testing machine according to claim 1, characterized in that: The heating tube (2) is a quartz tube.

10. A high temperature heatable pressure plate for a testing machine according to claim 2, characterized in that: The reflecting device (4) is a stainless steel foil.

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