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Spheroidizing-free annealing forming process for hexagonal wrench tool steel 6145

A forming process and hand tool technology, applied in the field of tool steel forming, can solve the problems of complex process, long time, high energy consumption, etc., and achieve the effect of reducing steps, good extensibility, and reducing carbon emissions

Pending Publication Date: 2022-03-25
昆山正通铭金属有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, spheroidizing annealing is required in the forming process of tool steel, which is complicated, takes a long time and consumes a lot of energy.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Step 1: Sandblasting: Use a coil sandblasting machine to perform sandblasting on the raw material tool steel 6145. The sandblasting is used to remove the oxide layer on the surface of the raw material tool steel 6145 and to relieve stress on the surface. Pill purging, the purging amount is 220kg / h, the rotation frequency of the main shaft of the coil sandblasting machine is 8rpm / min, the shot blasting diffusion angle is 90°, the time of sandblasting is 10min, and the raw material tool steel 6145 The diameter is 9mm;

[0054] Step 2: pickling and phosphating treatment: soak the sandblasted tool steel 6145 in weak acid solution for 8 minutes, medium acid solution for 3 minutes and strong acid solution for 2 minutes. Soak in phosphate for 8 minutes, saponification solution for 0.5 minutes and lime for 0.5 minutes, hang out to dry;

[0055] Step 3: drawing and forming: the tool steel 6145 processed in step 2 is sent to a hanging stretching machine for drawing and forming i...

Embodiment 2

[0057] Step 1: Sandblasting: Use a coil sandblasting machine to perform sandblasting on the raw material tool steel 6145. The sandblasting is used to remove the oxide layer on the surface of the raw material tool steel 6145 and to relieve stress on the surface. Pill purging, the purging amount is 240kg / h, the rotation frequency of the main shaft of the coil sandblasting machine is 10rpm / min, the shot blasting diffusion angle is 90°, the time of sandblasting is 15min, and the raw material tool steel 6145 The diameter is 9mm;

[0058] Step 2: pickling and phosphating treatment: soak the sandblasted tool steel 6145 in weak acid solution for 10 minutes, medium acid solution for 5 minutes and strong acid solution for 3 minutes. Soak in phosphate for 10 minutes, saponification solution for 1 minute and lime for 1 minute, hang out to dry;

[0059] Step 3: drawing and forming: the tool steel 6145 processed in step 2 is sent to a hanging stretching machine for drawing and forming into...

Embodiment 3

[0061]Step 1: Sandblasting: Use a coil sandblasting machine to perform sandblasting on the raw material tool steel 6145. Sandblasting is used to remove the oxide layer on the surface of the raw material tool steel 6145 and to relieve stress on the surface. Pill purging, the purging amount is 260kg / h, the rotation frequency of the main shaft of the coil sandblasting machine is 15rpm / min, the shot blasting diffusion angle is 90°, the time of sandblasting is 20min, and the raw material tool steel 6145 The diameter is 9mm;

[0062] Step 2: pickling and phosphating treatment: soak the sandblasted tool steel 6145 in weak acid solution for 15 minutes, medium acid solution for 8 minutes and strong acid solution for 5 minutes. Soak in phosphate for 15 minutes, saponification solution for 1.5 minutes and lime for 1.5 minutes, hang out to dry;

[0063] Step 3: drawing and forming: the tool steel 6145 processed in step 2 is sent to a hanging stretching machine for drawing and forming int...

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PUM

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Abstract

The invention relates to a spheroidizing-free annealing forming process for hexagonal wrench tool steel 6145, which comprises the following steps: sand blasting treatment: performing sand blasting treatment on raw material tool steel 6145 by using a coil sand blasting machine, and performing sand blasting treatment for removing an oxide layer on the surface of the raw material tool steel 6145 and performing surface destressing treatment; the tool steel 6145 obtained after sand blasting is sequentially placed in a weak acid solution, a medium acid solution and a strong acid solution to be soaked, then clean water is used for cleaning, the cleaned tool steel 6145 is sequentially soaked in phosphate, a saponification solution and lime to be soaked, and then the tool steel 6145 is lifted out and aired; and drawing forming is conducted, specifically, the tool steel 6145 treated in the second step is fed into a hanging type stretcher to be stretched and formed into the hexagon wrench tool steel. According to the forming process, a spheroidizing annealing process is omitted, energy consumption is reduced, carbon emission is reduced, steps of the forming process are reduced, the construction period is shortened, and cost is reduced.

Description

technical field [0001] The invention relates to tool steel forming, in particular to a forming process of hexagonal wrench tool steel 6145 free of spheroidization annealing. Background technique [0002] Tool steel is a type of alloy steel, and 6145 is a type of tool steel, which is a high-grade steel for making tools. 6145 tool steel is used as a steel material for making tools. It is used to manufacture various high-quality power tools such as hexagonal bits, hexagonal wrenches, screwdrivers and other special tools. At present, spheroidizing annealing treatment is required in the forming process of tool steel, which is complicated, takes a long time and consumes a lot of energy. Contents of the invention [0003] In order to overcome the above-mentioned defects, the present invention provides a forming process of hexagonal wrench tool steel 6145 without spheroidizing annealing. In this forming process, the step of spheroidizing annealing is eliminated, the construction ...

Claims

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Application Information

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IPC IPC(8): C23G1/08B24C1/08B24C1/10C22C38/02C22C38/04C22C38/42C22C38/46C23C22/07
CPCC23G1/08C23C22/07C22C38/02C22C38/04C22C38/42C22C38/46B24C1/086B24C1/10
Inventor 李柏翰
Owner 昆山正通铭金属有限公司