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Ammunition belt heat treatment process

A process and elastic chain technology, applied in the field of elastic chain heat treatment process, can solve the problems of material waste, unable to guarantee the qualification rate, affecting product production, etc., and achieve the effect of reducing tissue stress, high toughness, and improving mechanical performance indicators.

Inactive Publication Date: 2017-06-06
QINGDAO XINHEYI IND & TRADE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the chain breaking force requirements of elastic chain products are high, for example, when the chain breaking force is required to be greater than 11KN, the traditional process cannot guarantee a 100% pass rate, which seriously affects the production of the product and causes a lot of material waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A heat treatment process for bullet chains, comprising the following steps:

[0013] Use a salt furnace to heat the workpiece to 840°C to austenitize and homogenize it; cool it to 240°C in a nitrate tank, keep it at the same temperature for 6 minutes, and then switch to water cooling; it also includes a tempering step: heating with a nitrate furnace As for 320°C, then switch to water cooling.

Embodiment 2

[0015] A heat treatment process for bullet chains, comprising the following steps:

[0016] Use a salt furnace to heat the workpiece to 860°C to austenitize and homogenize it; cool it to 260°C in a nitrate tank, keep it at the same temperature for 6 minutes, and then switch to water cooling; it also includes a tempering step: heating with a nitrate furnace As for 360°C, then switch to water cooling.

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Abstract

The invention discloses an ammunition belt heat treatment process, which comprises: heating a work-piece to austenitize and homogenize, cooling to a temperature of 240-260 DEG C in a nitrate tank, carrying out isothermal maintaining, and carrying out water cooling. According to the present invention, with the ammunition belt heat treatment process, the requirements that the mechanical performance index of the ammunition belt are substantially improved and the qualification rate is increased to 100% are fundamentally met.

Description

technical field [0001] The invention relates to a heat treatment process for elastic chains. Background technique [0002] Chain breaking force is an important indicator of elastic chain products, and elastic chain products require a 100% pass rate. The heat treatment process of traditional elastic chain products uses a mesh belt furnace to heat at 850 ° C, and quench the oil after maintaining the low temperature for a certain period of time. Then use a mesh belt furnace to temper at 360°C and then air-cool it. When the chain breaking force requirements of the elastic chain products are high, for example, when the chain breaking force is required to be greater than 11KN, the traditional process cannot guarantee a 100% pass rate, which seriously affects the production of the product and causes a lot of material waste. Contents of the invention [0003] The primary purpose of the present invention is to provide a heat treatment process for elastic chains that satisfies the ...

Claims

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Application Information

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IPC IPC(8): C21D1/22C21D9/00
Inventor 吴佳
Owner QINGDAO XINHEYI IND & TRADE CO LTD
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