Hard alloy metallographic sample preparation tool
By using a heating plate to adjust the temperature of the tin liquid in cemented carbide sample preparation, the problems of diverse sample shapes and unenvironmental mounting methods are solved. The tin liquid can be kept liquefied before the alloy sample drops, and the use of tin instead of bakelite powder is environmentally friendly. and low cost advantages.
Patent Information
- Application Number
- CN202323537781.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-25
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2033-12-25
AI Technical Summary
When making samples of cemented carbide products, the samples have a variety of shapes, which are difficult to clamp stably, and it is difficult to grind and polish the mirror surface of the observation surface. Existing inlay methods such as bakery powder are troublesome, unecotch and costly.
The tin liquid is used instead of the plastic powder to inlaid, and the temperature of the tin fluid is adjusted by heating plate to reduce the liquefied state before the alloy sample to the specified location.
The liquefaction of tin liquids before the decline of alloy samples, avoiding the failure of tin liquid solidification, which is convenient, environmentally friendly, simple, and low in using tin to replace tin powder.
Smart Images
Figure CN222393863U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of alloy detection, and in particular relates to a hard alloy metallographic sample preparation tool. Background Art
[0002] Metallographic testing requires that the observation surface and the bottom of the sample are parallel, and the observation surface is mirror-polished. However, when preparing samples of cemented carbide products, it is difficult to achieve a stable clamp due to the various shapes of the samples, and observation requires a mirror plane of a certain area. Cemented carbide has high hardness, and grinding and polishing are relatively difficult. Sample preparation requires that the plane of the part to be observed is facing upward as much as possible, which is not easy to achieve with ordinary methods. Therefore, mounting is required. The existing mounting method is to prepare samples using bakelite powder. However, bakelite powder is more troublesome to mount, not environmentally friendly, and has a high cost. Therefore, tin can be used instead of bakelite powder for mounting. However, the state of tin is related to temperature. If the tin liquid solidifies before the alloy sample is immersed, it will make it impossible to mount the sample. Therefore, it is necessary to adjust the temperature of the tin liquid to achieve the purpose of adjusting the state of the tin. Summary of the invention
[0003] The utility model provides a hard alloy metallographic sample preparation tool, which can make the temperature of tin liquid higher than the solidification temperature of tin by a heating plate, so that the tin liquid can be kept in a liquefied state before the alloy sample is dropped to a specified position, and by using tin instead of bakelite powder, it has the characteristics of convenience, environmental protection, simplicity and low cost.
[0004] The utility model provides the following technical solution: it includes a base and a heating plate, characterized in that: a fixed seat is provided on the top of the base, the heating plate is fixedly connected to the top of the fixed seat, and a switch knob is provided on one side of the fixed seat, a graphite box for containing tin liquid is movably connected to the top of the heating plate, and a support rod is provided on the top of the base, a movable block is movably connected to the outer side of the support rod, a fixed plate is provided on one side of the movable block, a connecting column is provided at the bottom of one end of the fixed plate away from the movable block, a magnet is provided at the bottom of the connecting column, a connecting block is provided on one side of the movable block, an adjusting shaft is rotatably connected to the connecting block, a gear is provided at one end of the adjusting shaft, a connecting groove is provided on one side of the support rod, a tooth block is provided on the inner side of the connecting groove, the gear is meshed and connected with the tooth block, and a threaded rod for limiting the movable block is threadedly connected to the movable block.
[0005] Wherein, a limiting groove is provided on the top of the heating plate, the graphite box is movably connected to the inner side of the limiting groove, and the position of the magnet corresponds to that of the limiting groove.
[0006] Wherein, a through slot is provided on the connecting block, the adjusting shaft is rotatably connected to the inner side of the through slot, and the gear is located on the inner side of the connecting slot.
[0007] Wherein, a threaded hole is opened on one side of the movable block, and the threaded rod is threadedly connected to the threaded hole.
[0008] Wherein, the support rod is perpendicular to the base, the fixing plate is perpendicular to the support rod, and the fixing plate is parallel to the base.
[0009] The beneficial effects of the utility model are as follows: the temperature of the tin liquid can be adjusted by the heating plate so that the temperature of the tin liquid is higher than the solidification temperature of the tin liquid, so that the tin liquid can remain in a liquefied state before the alloy sample is lowered to a specified position, thereby avoiding the situation in which the tin liquid solidifies before the alloy sample gold is immersed, resulting in the inability to mount the sample. By using tin instead of bakelite powder, the utility model has the characteristics of convenience, environmental protection, simplicity and low cost.
[0010] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.
[0012] Figure 2 For this utility model Figure 1 Enlarged view of part A in .
[0013] Figure 3 It is a side structural schematic diagram of the utility model.
[0014] Figure 4 For this utility model Figure 3 Enlarged view of part B in .
[0015] In the figure: 1. base; 11. fixing seat; 111. heating plate; 112. switch knob; 113. limit groove; 12. support rod; 121. connecting groove; 122. gear block; 2. graphite box; 3. movable block; 31. fixing plate; 311. connecting column; 312. magnet; 32. connecting block; 321. through groove; 33. adjusting shaft; 34. gear; 35. threaded hole; 36. threaded rod. Implementation
[0016] See also Figure 1-Figure 4The utility model provides the following technical solution: comprising a base 1 and a heating plate 111, characterized in that: a fixed seat 11 is provided on the top of the base 1, the heating plate 111 is fixedly connected to the top of the fixed seat 11, and a switch knob 112 is provided on one side of the fixed seat 11, a graphite box 2 for containing tin liquid is movably connected to the top of the heating plate 111, and a support rod 12 is provided on the top of the base 1, and a movable block 3 is movably connected to the outer side of the support rod 12, and a fixed plate 31 is provided on one side of the movable block 3, and a fixed plate 31 is provided on the top of the base 1. A connecting column 311 is provided at the bottom of one end of the fixed plate 31 away from the movable block 3, and a magnet 312 is provided at the bottom of the connecting column 311. A connecting block 32 is provided on one side of the movable block 3. An adjusting shaft 33 is rotatably connected to the connecting block 32, and a gear 34 is provided at one end of the adjusting shaft 33. A connecting groove 121 is provided on one side of the support rod 12, and a tooth block 122 is provided on the inner side of the connecting groove 121. The gear 34 is meshed and connected with the tooth block 122. A threaded rod 36 for limiting the movable block 3 is threadedly connected to the movable block 3.
[0017] In this embodiment, the base 1 and the heating plate 111 are included. The heating plate 111 is a device that uses electricity to heat the surface of a flat plate. The heating of the heating plate 111 is mainly achieved by the resistance heating of the resistance material inside the heating plate 111. When the heating plate 111 is powered on, the temperature of the heating plate 111 will rise. A fixing seat 11 is provided on the top of the base 1. The heating plate 111 is fixedly connected to the top of the fixing seat 11, and a switch knob 112 is provided on one side of the fixing seat 11. The heating plate 111 and the switch knob 112 are electrically connected, and the connecting element between the heating plate 111 and the switch knob 112 is located inside the fixing seat 11. The switch of the heating plate 111 can be controlled by the switch knob 112, thereby achieving the control of the temperature of the heating plate 111. Purpose: The top of the heating plate 111 is movably connected with a graphite box 2 for containing tin liquid. When the graphite box 2 is located on the top of the heating plate 111, the temperature of the graphite box 2 can be adjusted by the heating plate 111. When the tin liquid is poured into the inside of the graphite box 2, the tin liquid is heated by the heating plate 111 so that the temperature of the tin liquid is higher than the solidification temperature of the tin liquid, so that the tin liquid inside the graphite box 2 can be kept in a liquefied state. A support rod 12 is provided on the top of the base 1. The support rod 12 is fixedly connected to the base 1. A movable block 3 is movably connected to the outer side of the support rod 12. The movable block 3 is slidably connected to the three sides of the support rod 12. A fixed plate 31 is provided on one side of the movable block 3. The fixed plate 31 is fixedly connected to one side of the movable block 3. The fixed plate 31 The fixing base 11 is located on the same side of the support rod 12. A connecting column 311 is provided at the bottom of one end of the fixing plate 31 away from the movable block 3. The connecting column 311 is fixedly connected to the fixing plate 31, and the connecting column 311 is located above the fixing base 11. A magnet 312 is provided at the bottom of the connecting column 311. By adsorbing the alloy sample on the bottom of the magnet 312, the position of the alloy sample can be adjusted by moving the movable block 3, so that the sample can enter the tin liquid inside the graphite box 2. When the heating plate 111 is turned off, the tin liquid inside the graphite box 2 will cool and solidify, so that the alloy sample is embedded in the tin block, and finally a sample block parallel to each other is obtained, which is convenient for subsequent grinding. A connecting block 32 is provided on one side of the movable block 3, and an adjusting The gear 34 is provided at one end of the adjusting shaft 33, and the connecting block 32 is slidably connected to one side of the support rod 12. The gear 34 is located on the inner side of the connecting block 32. A connecting groove 121 is provided on one side of the support rod 12, and a tooth block 122 is provided on the inner side of the connecting groove 121. The gear 34 is meshed and connected with the tooth block 122. Through the meshing of the gear 34 and the tooth block 122, the position of the movable block 3 can be adjusted by rotating the adjusting shaft 33. At the same time, the purpose of slowly lowering the movable block 3 can be achieved, which is convenient for adjusting the position of the movable block 3 and avoiding the situation where the lowering position is too low due to the movable block 3 descending too fast. The movable block 3 is threadedly connected with a threaded rod 36 for limiting the movable block 3. When the movable block 3 moves to an appropriate position,By rotating the threaded rod 36, the threaded rod 36 is moved toward the position of the support rod 12, so that the end of the threaded rod 36 presses one side of the support rod 12, and the gravity of the movable block 3, the fixed plate 31, the connecting column 311 and the magnet 312 is less than the friction between the threaded rod 36 and the support rod 12, so that the movable block 3 can be fixed to maintain the position of the alloy sample. The temperature of the tin liquid can be adjusted by the heating plate 111 to make the temperature of the tin liquid higher than the solidification temperature of the tin liquid, so that the tin liquid can remain in a liquefied state before the alloy sample is lowered to the specified position, avoiding the situation where the tin liquid solidifies before the alloy sample gold is immersed, resulting in the inability to mount the sample. By using tin instead of bakelite powder, it has the characteristics of convenience, environmental protection, simplicity and low cost.
[0018] A limiting groove 113 is provided on the top of the heating plate 111, and the graphite box 2 is movably connected to the inner side of the limiting groove 113, and the position of the magnet 312 corresponds to that of the limiting groove 113; the limiting groove 113 matches the size of the graphite box 2, and by placing the graphite box 2 on the inner side of the limiting groove 113, the graphite box 2 can be limited to avoid displacement of the graphite box 2 during the sample mounting process.
[0019] A through slot 321 is provided on the connecting block 32, and the adjusting shaft 33 is rotatably connected to the inner side of the through slot 321, and the gear 34 is located on the inner side of the connecting slot 121; by rotating the adjusting shaft 33, the gear 34 can be rotated on the inner side of the connecting slot 121, and the gear 34 will mesh with the tooth block 122, thereby achieving the purpose of slowly descending the movable block 3.
[0020] A threaded hole 35 is provided on one side of the movable block 3, and a threaded rod 36 is threadedly connected to the threaded hole 35; since the threaded rod 36 is threadedly connected to the threaded hole 35, when the threaded rod 36 is rotated, the position of the threaded rod 36 can be adjusted. When the threaded rod 36 moves toward the inner side of the movable block 3, the end of the threaded rod 36 will abut against the outer side of the support rod 12, thereby achieving the purpose of limiting the movable block 3.
[0021] The support rod 12 is perpendicular to the base 1, the fixing plate 31 is perpendicular to the support rod 12, and the fixing plate 31 is parallel to the base 1; since the base 1 is perpendicular to the fixing plate 31, when the alloy sample is embedded in the tin block, a sample block parallel to the upper and lower sides can be obtained.
[0022] The working principle and use process of the utility model are as follows: when in use, firstly, the heating plate 111 is turned on through the switch knob 112 to increase the temperature of the heating plate 111, and then the tin liquid is poured into the interior of the graphite box 2, and the temperature of the tin liquid is made higher than the solidification temperature of the tin liquid through the heating plate 111, so that the tin liquid inside the graphite box 2 can be kept in a liquefied state, and then the alloy sample is adsorbed on the bottom of the magnet 312, and then the adjustment shaft 33 is rotated, and the purpose of making the movable block 3 descend smoothly can be achieved through the engagement of the gear 34 and the tooth block 122. When the sample is immersed in the tin liquid, the position of the movable block 3 can be fixed by the threaded rod 36. Finally, the heating plate 111 is turned off to cool and solidify the tin liquid, so that a sample block parallel to the upper and lower sides can be obtained.
Claims
1. A cemented carbide metallographic sample preparation tool, comprising a base (1) and a heating plate (111), characterized in that: The top of the base (1) is provided with a fixing seat (11), the heating plate (111) is fixedly connected to the top of the fixing seat (11), and a switch knob (112) is provided on one side of the fixing seat (11), the top of the heating plate (111) is movably connected to a graphite box (2) for containing molten tin, and the top of the base (1) is provided with a support rod (12), the outer side of the support rod (12) is movably connected to a movable block (3), one side of the movable block (3) is provided with a fixing plate (31), and the bottom of one end of the fixing plate (31) away from the movable block (3) is provided with a connection A column (311) is provided at the bottom of the connecting column (311), a magnet (312) is provided at one side of the movable block (3), an adjusting shaft (33) is rotatably connected to the connecting block (32), a gear (34) is provided at one end of the adjusting shaft (33), a connecting groove (121) is provided at one side of the support rod (12), a tooth block (122) is provided on the inner side of the connecting groove (121), the gear (34) is meshedly connected to the tooth block (122), and a threaded rod (36) for limiting the movable block (3) is threadedly connected to the movable block (3).
2. A cemented carbide metallographic sample preparation tool according to claim 1, characterized in that: A limiting groove (113) is provided on the top of the heating plate (111), the graphite box (2) is movably connected to the inner side of the limiting groove (113), and the position of the magnet (312) corresponds to that of the limiting groove (113).
3. A cemented carbide metallographic sample preparation tool according to claim 1, characterized in that: A through slot (321) is provided on the connection block (32), the adjustment shaft (33) is rotatably connected to the inner side of the through slot (321), and the gear (34) is located on the inner side of the connection slot (121).
4. A cemented carbide metallographic sample preparation tool according to claim 1, characterized in that: A threaded hole (35) is provided on one side of the movable block (3), and the threaded rod (36) is threadedly connected to the threaded hole (35).
5. The cemented carbide metallographic sample preparation tool according to claim 1, characterized in that: The support rod (12) is perpendicular to the base (1), the fixing plate (31) is perpendicular to the support rod (12), and the fixing plate (31) is parallel to the base (1).