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Preparation method of alloy steel screw tap plated with titanium aluminum niobium nitride film

A technology of nitride film and titanium-aluminum alloy, which is applied in the field of alloy steel tap preparation, can solve the problems of low hardness index, difficulty in ensuring stability and repeatability, and large fluctuation range, so as to reduce internal stress, high hardness, The effect of high adhesion

Inactive Publication Date: 2017-10-13
SHENYANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hardness of the commonly used titanium nitride film can be between HV1600-2200, not only the hardness index is low, but also the fluctuation range is large, it is difficult to ensure stability and repeatability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The preparation of plated titanium aluminum niobium nitride film 9SiCr alloy steel tap, its method is,

[0023] 1) Determination of deposition technology, determine multi-arc ion plating as the preparation technology for preparing 9SiCr alloy steel taps coated with titanium aluminum niobium nitride film.

[0024] 2) Determination of the target material, using 2 titanium-aluminum alloy targets (the atomic percentage of aluminum and titanium is 55:45) and 2 titanium-niobium alloy targets (the atomic percentage of titanium and niobium is 65:35) as the cathode arc source target In addition, the arc source positions on the wall of the coating chamber are alternately placed at different heights and different orientations, and the purity of the target material reaches 99.95%. During the coating process, four arc sources are always activated at the same time.

[0025] 3) Selection and pre-treatment of alloy steel taps. Choose 9SiCr alloy steel taps as the coating substrate. Bef...

Embodiment 2

[0030] The preparation of plated titanium aluminum niobium nitride film 6542 alloy steel tap, its method is,

[0031] 1) Determination of deposition technology, determine multi-arc ion plating as the preparation technology for preparing 6542 alloy steel taps coated with titanium, aluminum and niobium nitride films.

[0032]2) Determination of the target material, using 2 titanium-aluminum alloy targets (the atomic percentage of aluminum and titanium is 55:45) and 2 titanium-niobium alloy targets (the atomic percentage of titanium and niobium is 65:35) as the cathode arc source target In addition, the arc source positions on the wall of the coating chamber are alternately placed at different heights and different orientations, and the purity of the target material reaches 99.95%. During the coating process, four arc sources are always activated at the same time.

[0033] 3) Selection and pre-treatment of alloy steel taps. Select 6542 alloy steel taps as the coating substrate. B...

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Abstract

The invention discloses a preparation method of an alloy steel screw tap plated with a titanium aluminum niobium nitride film, and relates to a preparation method of an alloy screw tap. The method comprises the steps that target materials are selected, two titanium aluminum alloy targets and two titanium niobium targets are adopted as cathode arc source targets and alternately arranged at plating chamber wall arc source positions at different heights and positions, an alloy steel screw tap is selected and pretreated, the alloy steel screw tap is placed, and the plating technology is determined; when the back bottom vacuum degree of a plating chamber reaches 1*10<-1>pa and the temperature reaches 240-300 DEG C, argon is introduced into the plating chamber, the pressure intensity reaches 2*10<-1>, four arc sources are started, ion bombardment is carried out, the arc current is 55 A, time is 15 min, and the bombardment bias voltage is reduced at a uniform speed to 300 V from 400 V, and the bias voltage is reduced to 120 V. The whole set of plating deposition technology is determined, and the prepared alloy steel screw tap plated with the titanium aluminum niobium nitride film is strong in adhesion force, high in hardness and long in service life.

Description

technical field [0001] The invention relates to a preparation method of an alloy steel tap, in particular to a preparation method of an alloy steel tap coated with a titanium-aluminum-niobium nitride film. Background technique [0002] Multi-arc ion plating is a vacuum physical vapor deposition technology with multiple cathode evaporation sources that can evaporate simultaneously. It has the remarkable characteristics of fast deposition speed, dense film structure, strong adhesion, and good uniformity. This technology is suitable for the preparation of nitride films, and has been successfully applied in the preparation of nitride films such as TiN, (Ti, Al) N, (Ti, Cr) N, (Ti, Zr) N, etc. [0003] The poor adhesion between the hard reaction film and the alloy steel substrate is a common problem. Although the multi-component nitride reaction film prepared by multi-arc ion plating technology on the alloy steel substrate, the adhesion can generally reach 30- 70N, it is still d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/06C23C14/32C23C14/34
CPCC23C14/0641C23C14/0036C23C14/325C23C14/3464
Inventor 张钧李长鸣田红花王晓阳张连永张正贵王美涵
Owner SHENYANG UNIV
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