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Production and manufacturing method of chain pin shaft

A manufacturing method and pin technology, which are applied in the direction of manufacturing tools, coatings, furnace types, etc., can solve the problems affecting the wear resistance of the chain, poor stability, and insufficient surface hardness of the chain pin, so as to improve the surface quality. and dimensional accuracy, improve wear resistance and transmission efficiency, reduce the effect of surface wrinkles

Inactive Publication Date: 2020-04-17
绩溪山合机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, the chain pin is an important component of the chain, and the surface of the existing chain pin obtains acicular martensitic structure, which can keep the chain pin with good wear resistance and certain toughness, but The surface hardness of the chain pin shaft is not high enough, and the stability is not good, which affects the overall wear resistance of the chain

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for manufacturing a chain pin, comprising the steps of:

[0024] 1) Send the prepared raw materials into the shot blasting machine for shot blasting. In the shot blasting process of the shot blasting machine, the surface of the raw material is impacted by hardened steel shots, and the surface of the raw material is hardened by the impact, wherein the hardened steel The shot is manganese steel shot, the diameter of the manganese steel shot is 0.7-1.0mm, and the hardness is HRC45-48, and the preparation material for the chain pin shaft is obtained;

[0025] 2) obtaining the pin shaft workpiece after the chain pin shaft preparation material in step 1) is processed through cold drawing, head cutting, sizing, tension leveling and cold rolling;

[0026] 3) Put the pin shaft workpiece in step 2) into the controllable atmosphere mesh belt furnace, set the temperature and carbon potential in different areas under the atmosphere protection environment, set the heating te...

Embodiment 2

[0032] A method for manufacturing a chain pin, comprising the steps of:

[0033] 1) Send the prepared raw materials into the shot blasting machine for shot blasting. In the shot blasting process of the shot blasting machine, the surface of the raw material is impacted by hardened steel shots, and the surface of the raw material is hardened by the impact, wherein the hardened steel The shot is manganese steel shot, the diameter of the manganese steel shot is 0.85mm, and the hardness is HRC46-48, and the preparation material for the chain pin shaft is obtained;

[0034] 2) obtaining the pin shaft workpiece after the chain pin shaft preparation material in step 1) is processed through cold drawing, head cutting, sizing, tension leveling and cold rolling;

[0035] 3) Put the pin shaft workpiece in step 2) into the controllable atmosphere mesh belt furnace, set the temperature and carbon potential in different areas under the atmosphere protection environment, set the heating tempe...

Embodiment 3

[0041] A method for manufacturing a chain pin, comprising the steps of:

[0042] 1) Send the prepared raw materials into the shot blasting machine for shot blasting. In the shot blasting process of the shot blasting machine, the surface of the raw material is impacted by hardened steel shots, and the surface of the raw material is hardened by the impact, wherein the hardened steel The shot is manganese steel shot, the diameter of the manganese steel shot is 0.85mm, and the hardness is HRC46-48, and the preparation material for the chain pin shaft is obtained;

[0043] 2) obtaining the pin shaft workpiece after the chain pin shaft preparation material in step 1) is processed through cold drawing, head cutting, sizing, tension leveling and cold rolling;

[0044] 3) Put the pin shaft workpiece in step 2) into the controllable atmosphere mesh belt furnace, set the temperature and carbon potential in different areas under the atmosphere protection environment, set the heating tempe...

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Abstract

The invention discloses a production and manufacturing method of a chain pin shaft. The production and manufacturing method comprises the following steps of 1) feeding prepared raw materials into a shot blasting machine for shot blasting; 2) performing a machining process on a chain pin shaft preparation material in the step 1) to obtain a pin shaft workpiece; 3) loading the pin shaft workpiece inthe step 2) into a controllable atmosphere mesh belt furnace, and setting temperature and carbon potential in a partitioned manner in an atmosphere protection environment; 4) pickling: pickling the chain pin shaft in the step 3), wherein the concentration of sulfuric acid is 12-15%, the pickling temperature is 63-68 DEG C, and the pickling time is 60-70 minutes; 5) performing super-grinding on the chain pin shaft in the step 4) by adopting centerless grinding equipment, and then polishing the chain pin shaft by adopting centrifugal polishing machine equipment; 6) detecting: checking whether the size and the surface of the chain pin shaft meet requirements or not; and 7) packaging: packaging and arranging the processed chain pin shaft. According to the production and manufacturing method,surface wrinkles of the chain pin shaft are reduced, the surface quality and the size precision are improved, and meanwhile, the wear resistance and the transmission efficiency of a chain are improved.

Description

technical field [0001] The invention relates to the technical field of chain production, in particular to a method for producing a chain pin shaft. Background technique [0002] Among similar products, the chain product series are divided according to the basic structure of the chain, that is, according to the shape of the components, the parts and parts meshing with the chain, and the size ratio between the parts. There are many types of chains, but their basic structures are only the following, and others are deformations of these types. We can see from the above chain structures that most chains are composed of chain plates, chain pins, shafts Sets and other components. [0003] Therefore, the chain pin is an important component of the chain, and the surface of the existing chain pin obtains acicular martensitic structure, which can keep the chain pin with good wear resistance and certain toughness, but The surface hardness of the chain pin shaft is not high enough, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D7/06C21D1/74C21D9/28C23C8/20B23P15/00C21D1/18
CPCB23P15/00C21D1/18C21D1/74C21D7/06C21D9/28C23C8/20
Inventor 巫新锋
Owner 绩溪山合机械有限公司