Preparation method for titanium-aluminum-zirconium nitride film-coated hard alloy drill bit

A technology of cemented carbide and titanium-aluminum alloy, which is applied in the field of alloy drill bit preparation, can solve problems such as low hardness index, difficulty in ensuring stability and repeatability, and large fluctuation range, so as to reduce internal stress, high hardness, and use long life effect

Inactive Publication Date: 2017-09-29
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

[0014] The preparation of titanium aluminum zirconium nitride coating YG8 cemented carbide drill bit, its method is,

[0015] 1) Determination of deposition technology, determine multi-arc ion plating as the preparation technology for preparing titanium-aluminum-zirconium nitride-coated YG8 cemented carbide drill bits.

[0016] 2) Determination of the target material, using 2 titanium-aluminum alloy targets (the atomic percentage of titanium and aluminum is 45:55) and 2 titanium-zirconium alloy targets (the atomic percentage of titanium and zirconium 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.

[0017] 3) Selection and pre-treatment of cemented carbide drills, choose YG8 cemented carbide drills as th...

Embodiment 2

[0022] The preparation of titanium aluminum zirconium nitride coating film YG3 cemented carbide drill bit, its method is,

[0023] 1) Determination of deposition technology, determine multi-arc ion plating as the preparation technology for preparing titanium-aluminum-zirconium nitride-coated YG3 cemented carbide drill bits.

[0024] 2) Determination of the target material, using 2 titanium-aluminum alloy targets (the atomic percentage of titanium and aluminum is 45:55) and 2 titanium-zirconium alloy targets (the atomic percentage of titanium and zirconium 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 cemented carbide drills. Choose YG3 cemented carbide drills ...

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Abstract

The invention discloses a preparation method for a titanium-aluminum-zirconium nitride film-coated hard alloy drill bit, and relates to a preparation method for an alloy drill bit. A method for preparing a titanium-aluminum-zirconium nitride film-coated hard alloy drill bit through a multi-arc ion plating technology sequentially comprises the following steps: 1) determining a deposition technology; 2) determining the numbers of target materials and electric arc sources; 3) selecting the hard alloy drill bit and carrying out pretreatment; 4) placing the hard alloy drill bit; and 5) determining a film-coating process. According to the method, the titanium-aluminum-zirconium nitride film-coated hard alloy drill bit is prepared through the multi-arc ion plating technology, two titanium-aluminum alloy targets and two titanium-zirconium alloy targets are determined as cathode arc source targets; and a whole set of special film-coating deposition process is determined, so that the prepared titanium-aluminum-zirconium nitride film-coated hard alloy drill bit has the characteristics of being high in adhesion force, high in hardness and long in service life compared with a hard alloy drill bit which is not subjected to film-coating.

Description

technical field [0001] The invention relates to a method for preparing an alloy drill bit, in particular to a method for preparing a titanium-aluminum-zirconium nitride-coated hard alloy drill bit. 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 cemented carbide substrate is a common problem. Although the multi-component nitride reaction film prepared by multi-arc ion plating technology on the cemented carbide substrate, the adhesion can generally reach 70N-80N, it is still...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/32C23C14/06
CPCC23C14/325C23C14/0021C23C14/0641
Inventor 张钧于亚男田红花王晓阳孙丽婷杨芙贾征
Owner SHENYANG UNIV
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