Manufacturing method of high-temperature alloy locking block

Abstract

The invention discloses a manufacturing method of a high-temperature alloy locking block. The manufacturing method comprises a manufacturing process of a high-temperature alloy nut locking block. The manufacturing process sequentially comprises five steps of machining forming, heat treatment, fluorescent flaw detection, surface treatment and performance test. The limiting protrusion and the milling chuck are located and limited, axial force generated when the outer chamfer is milled can be offset and limited by abutting against the milling chuck through the limiting protrusion, displacement of the nut locking block is avoided, and the problem that due to the fact that the axial force can be generated when the outer chamfer is milled, the outer chamfer cannot be milled is solved. And therefore, the problem that the nut locking block is pushed by the axial force to generate displacement to influence the outer chamfer machining is solved.

Description

Technical Field

[0001] This invention relates to a method for manufacturing a high-temperature alloy locking block. Background Technology

[0002] The locking block made of high-temperature alloy material forms a nut after the internal thread is machined. In later use, it is screwed into the external thread of the bolt to lock the connecting parts.

[0003] For nut locking blocks with irregular stepped structures on the outside, the ends of the steps need to be chamfered (see Chinese Patent Publication No. CN118855830B). Since axial force is generated when milling the chamfer, the axial force will push the nut locking block to displace, affecting the processing of the chamfer. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a method for manufacturing a high-temperature alloy locking block.

[0005] The present invention is achieved through the following technical solutions.

[0006] The present invention provides a method for manufacturing a high-temperature alloy locking block, comprising: a manufacturing process for a high-temperature alloy nut locking block.

[0007] The manufacturing process includes five steps performed sequentially: machining, heat treatment, fluorescent flaw detection, surface treatment, and performance testing.

[0008] The machining process is as follows: Using a bar stock blank, the outer diameter of the closing platform, the irregular step, and the threaded bottom hole of the nut locking block are machined together. After cutting, the sharp edges and burrs are removed, and the turning and milling process is completed. The nut locking block is milled by changing the head. The end of the irregular step outside the threaded bottom hole is chamfered and deburred. There is an annular limiting protrusion on the outer circumference after the outer chamfer, and the milling process is completed. After tapping the threads of the nut locking block, deburr it to complete the threading process.

[0009] The heat treatment steps are as follows: Aging was performed in a vacuum oil quenching furnace at 620℃±10℃, with argon as the cooling medium and gas cooling method of cooling to 100℃ or below before removal from the furnace. The cooling gas pressure was 1.3±0.3 bar, resulting in a nut locking block product with HB≥346.

[0010] The fluorescent flaw detection steps are as follows: Fluorescent detection was used to inspect the surface of the nut locking block to ensure that there were no defects that would affect its performance.

[0011] The surface treatment steps are as follows: Silver plating is applied to the nut locking block to increase its wear resistance and corrosion resistance.

[0012] The performance test steps are as follows: The nut locking block passed the performance test, met the design standard requirements, and achieved the expected results. The manufacturing of the nut locking block is now complete.

[0013] The beneficial effects of this invention are as follows: the limiting protrusion and the milling chuck are positioned and limited, and the axial force generated during milling of the outer chamfer can be offset and limited by the limiting protrusion against the milling chuck, thus preventing the nut locking block from displacing. This solves the problem that the axial force generated during milling of the outer chamfer causes the nut locking block to displace and affect the outer chamfer processing. Attached Figure Description

[0014] Figure 1 This is a process flow diagram of the manufacturing method of the present invention; Figure 2 This is a front cross-sectional view of the nut locking block of the present invention formed by milling and turning; Figure 3 This is a front cross-sectional view of the nut locking block of the present invention after milling. In the diagram: 1-outer circle of the closing platform; 2-irregular step; 3-threaded bottom hole; 21-outer chamfer; 22-limiting protrusion. Detailed Implementation

[0015] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.

[0016] like Figures 1 to 3 As shown.

[0017] This application discloses a method for manufacturing a high-temperature alloy locking block, particularly a method for manufacturing a high-temperature alloy nut locking block, comprising the following steps: Step 1, Machining Using a bar stock blank, the outer diameter 1 of the closing platform, the irregular step 2, and the threaded bottom hole 3 of the nut locking block are machined together. After cutting, the sharp edges and burrs are removed, and the turning and milling process is completed. Figure 2 As shown.

[0018] The nut locking block is milled by changing the milling head. After chamfering and deburring the end of the irregular step 2 outside the threaded bottom hole 3, an annular limiting protrusion 22 is placed on the outer periphery behind the outer chamfer 21. The milling process is completed to form a nut locking block. Figure 3 As shown.

[0019] The limiting protrusion 22 positions and limits the milling chuck. The axial force generated during milling of the outer chamfer 21 can be offset and limited by the limiting protrusion 22 against the milling chuck, thus preventing the nut locking block from displacing. This solves the problem that the axial force generated during milling of the outer chamfer will push the nut locking block to displace and affect the outer chamfer processing.

[0020] After tapping the threads of the nut locking block, deburr it to complete the threading process.

[0021] Step 2, heat treatment Aging was performed in a vacuum oil quenching furnace at 620℃±10℃, with argon as the cooling medium and gas cooling method of cooling to 100℃ or below before removal from the furnace. The cooling gas pressure was (1.3±0.3) bar, resulting in a nut locking block product with HB≥346.

[0022] Step 3, Fluorescent Flaw Detection Fluorescent detection was used to inspect the surface of the nut locking block to ensure that there were no defects that would affect its performance.

[0023] Step 4, Surface Treatment Silver plating is applied to the nut locking block to increase its wear resistance and corrosion resistance. Step 5, Performance Testing The nut locking block passed the performance test, met the design standard requirements, and achieved the expected results. The manufacturing of the nut locking block is now complete.

Claims

1. A method of manufacturing a high-temperature alloy lock block, characterized by, The application relates to a manufacturing process of a high-temperature alloy nut locking block. The manufacturing process comprises five steps of machining forming, heat treatment, fluorescent detection, surface treatment and performance test.

2. The method of claim 1, wherein: The machining forming step is as follows:

3. The method of claim 2, wherein the high temperature alloy lock block is formed by the steps of: A bar blank is used to process the closing-out outer circle (1), the special-shaped step (2) and the threaded bottom hole (3) of the nut locking block into shape, and the sharp edge burrs are removed after cutting, so that turning and milling are completed; ​ The nut locking block is changed and milled, the end part of the special-shaped step (2) outside the threaded bottom hole (3) is chamfered and then deburred, and the outer chamfer (21) has a ring-shaped limiting protrusion (22) on the rear outer periphery, so that milling is completed; The nut locking block is threaded and then deburred, so that threading is completed. The heat treatment step is as follows:

4. The method of claim 2, wherein the high temperature alloy lock block is formed by a process comprising: A vacuum oil quenching furnace is used for aging at 620 DEG C + / - 10 DEG C, argon is used as the cooling medium, the cooling mode is air cooling to 100 DEG C and below, the cooling gas pressure is 1.3 + / - 0.3 bar, and the nut locking block product with HB greater than or equal to 346 is obtained. The fluorescent detection is used to detect the surface of the nut locking block, so that the performance defects of the nut locking block are ensured.

5. The method of claim 2, wherein the high temperature alloy lock block is formed by the steps of: providing a high temperature alloy blank; machining the high temperature alloy blank to form the lock block; and heat treating the lock block. The surface treatment step is as follows:

6. The method of claim 2, wherein the high temperature alloy lock block is formed by the steps of: providing a high temperature alloy blank; machining the high temperature alloy blank to form the lock block; and heat treating the lock block. The nut locking block is plated with silver, so that the wear resistance and corrosion resistance of the nut locking block are increased.

7. The method of claim 2, wherein the high temperature alloy lock block is formed by the steps of: providing a high temperature alloy blank; machining the high temperature alloy blank to form the lock block; and heat treating the lock block. The performance test step is as follows: The nut locking block passes the performance test, meets the design standard requirement of the nut locking block, achieves the expected effect, and the nut locking block manufacturing is completed.

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