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A method of raising abrasive resistance of metal materials

A metal material and wear-resistant technology, which is applied in the field of improving the wear-resistant performance of ferromagnetic metal materials, can solve the problems of element burning, deformation, incomplete phase transformation, etc., and achieve improved wear resistance, service life, and The effect of complete transformation

Active Publication Date: 2009-03-04
WUHAN JINGTAI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects of residual stress and incomplete phase transformation in the existing heat treatment technology and deformation, oxidation and burning loss of some elements introduced in the heat treatment process

Method used

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  • A method of raising abrasive resistance of metal materials

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Take 50 tungsten carbide φ0.075*1 micro-drills used in the electronics industry, and stick them on the fixture platform through double-sided adhesive. Frequency 10KHz, output power 1Kw, induction coil 3 turns; ultrasonic output power 20w, frequency 10KHz; processing time 100s. The treated drills were compared with untreated micro-drills produced in the same batch under the same working conditions. The results showed that each untreated drill could drill 2000 qualified holes in total, and the treated drills Each can punch 8,000 qualified holes, and the service life is increased by 3 times.

Embodiment 2

[0021] Take 50 tungsten carbide φ0.105*1.5 micro-drills used in the electronics industry, and stick them on the fixture platform through double-sided adhesive tape. The low-frequency excitation power output is 35A AC, the frequency is 12Hz, and the number of turns of the low-frequency excitation coil is 120 turns; the induction power output Frequency 15KHz, output power 2Kw, induction coil 3 turns; ultrasonic output power 30w, frequency 10KHz; processing time 100s. The treated drills were compared with untreated micro-drills produced in the same batch under the same working conditions. The results showed that each untreated drill could drill 2000 qualified holes in total, and the treated drills Each can punch 8,000 qualified holes, and the service life is increased by 3 times.

Embodiment 3

[0023] Take 50 tungsten carbide φ0.15*2.5 micro-drills used in the electronics industry, and stick them on the fixture platform through double-sided adhesive tape. The low-frequency excitation power output is 40A AC, the frequency is 12Hz, and the number of turns of the low-frequency excitation coil is 120 turns; the induction power output Frequency 15KHz, output power 2Kw, induction coil 3 turns; ultrasonic output power 30w, frequency 10KHz; processing time 120s. The treated drills were compared with untreated micro-drills produced in the same batch under the same working conditions. The results showed that each untreated drill could drill 1800 qualified holes in total, and the treated drills Each can punch 6,000 qualified holes, and the service life is increased by 2.3 times.

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Abstract

The method of raising abrasive resistance of metal material features that metal material is treated with coupled ultrasonic field and electromagnetic field for 35-500 s. The ultrasonic field has output power of 20-110 W and frequency of 10-30 KHz; the LF exciting coil of 100-500 turns has peak AC current of 30-80 A and frequency of 10-50 Hz; and the HF inducing coil of 3-10 has frequency of 10-100 KHz and output power of 1-8 KW. The method is used on the basis of heat treatment of metal, and can reduce residual stress, decrease incomplete phase change and raise the wear resistance of the treated part greatly.

Description

technical field [0001] The invention belongs to the field of metal material processing, in particular to a processing method for improving the wear resistance of ferromagnetic metal materials. Background technique [0002] How to improve the wear resistance of metal materials has always been an important research direction in the field of materials engineering. The current methods include changing the material formula and processing methods. [0003] Among the treatment methods, heat treatment can effectively improve the wear resistance of metal materials and is widely used. However, due to the residual stress and incomplete phase transformation generated in the heat treatment process, it is difficult to maximize the wear resistance of metal materials; in addition, the deformation, oxidation and burning loss of some elements introduced in the heat treatment process make heat treatment cannot be used as the final process. And limited the scope of use. Contents of the inven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D10/00C22F3/02
Inventor 王明道王自成袁金磊
Owner WUHAN JINGTAI TECH CO LTD