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Method for raising surface friction and wear properties by changing loads

A technology of wear performance and surface friction, which is applied in testing wear resistance and other directions, and can solve problems such as no patent publications

Inactive Publication Date: 2012-05-02
ZHENJIANG YINUOWEI SHAPE MEMORY ALLOYS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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  • Method for raising surface friction and wear properties by changing loads
  • Method for raising surface friction and wear properties by changing loads

Examples

Experimental program
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Effect test

Embodiment 1

[0009] Plane the surface of No. 45 carbon steel to obtain a surface with a roughness of Ra3.2; then perform quenching and tempering treatment, heat the workpiece with a length of 100 mm × width 85 mm × height 20 mm to 840 ° C for 2 hours, and then quickly put it in 10 % saline solution for cold quenching to make it completely hardened, and then high temperature tempering treatment for the workpiece, 560 ° C for 1.5 hours, the hardness of the obtained No. 45 carbon steel is about 35HRC; finally the treated No. 45 carbon steel The steel is processed into a test piece with dimensions of 22 mm long x 20 mm wide x 4 mm high. Before the friction test, alcohol must be used to wipe the surface of the specimen along the direction of the texture, and lubricating oil is used to lubricate the surface during the friction process. The friction and wear test was carried out on a multifunctional friction and wear testing machine, using the reciprocating friction method, setting the loading lo...

Embodiment 2

[0011] No. 45 carbon steel was planed to obtain a wavy surface texture with a roughness of Ra3.2; then quenched and tempered, the workpiece with a length of 100 mm × width 85 mm × height 20 mm was heated to 840 ° C for 2 hours, and then quickly placed Put it into 10% saline solution for cold quenching to make it completely hardened, and then perform high-temperature tempering treatment on the workpiece, keep it at 560°C for 1.5 hours, and the hardness of the obtained No. 45 carbon steel is about 35HRC; finally, the processed No. 45 The carbon steel is processed into a test piece with a size of 22mm long x 20mm wide x 4mm high. Before the friction test, alcohol must be used to wipe the surface of the specimen along the direction of the texture, and lubricating oil is used to lubricate the surface during the friction process. The friction and wear test was carried out on a multifunctional friction and wear testing machine, using the reciprocating friction method, setting the loa...

Embodiment 3

[0013] No. 45 carbon steel was planed to obtain a wavy surface texture with a roughness of Ra3.2; then quenched and tempered, the workpiece with a length of 100 mm × width 85 mm × height 20 mm was heated to 840 ° C for 2 hours, and then quickly placed Put it into 10% saline solution for cold quenching to make it completely hardened, and then perform high-temperature tempering treatment on the workpiece, keep it at 560°C for 1.5 hours, and the hardness of the obtained No. 45 carbon steel is about 35HRC; finally, the processed No. 45 The carbon steel is processed into a test piece with a size of 22mm long x 20mm wide x 4mm high. Before the friction test, alcohol must be used to wipe the surface of the specimen along the direction of the texture, and lubricating oil is used to lubricate the surface during the friction process. The friction and wear test was carried out on a multifunctional friction and wear testing machine, using the reciprocating friction method, setting the loa...

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Abstract

A method for raising surface friction and wear properties by changing loads belongs to the field of the surface friction and wear properties. The method provided by the invention comprises the following steps of: planning the surface of carbon steel No.45 to obtain a surface with its roughness being Ra 3.2; carrying out quenching and tempering treatment, heating a workpiece of 100mm*85mm*20mm (length*width*height) to 840 DEG C, keeping warm for two hours, rapidly placing into 10% of a salt solution for cold quenching to make the workpiece to be completely quenched, carrying out high-temperature tempering processing on the workpiece, keeping warm at the temperature of 560 DEG C for 1.5 hours to obtain carbon steel No.45 with its hardness being about 35 HRC; and finally processing the processed carbon steel No.45 into a test piece of 22mm*20mm*4 (length*width*height). The test piece undergoes a friction test, the load is set at 100g-400g and the time is 300s. When the load is 400g, the friction coefficient of the test piece is the lowest, and the wear resistant and antifriction performance of the test piece are obviously raised.

Description

technical field [0001] The invention relates to the field of surface friction and wear performance, in particular to a method for improving surface friction and wear performance by changing the loading load. Background technique [0002] Since improving the surface texture of mechanical processing can improve the wear resistance, reliability and service life of mechanical parts, and the accurate evaluation and characterization of the surface texture is the premise and basis, the correct specification and control of the surface texture often has no effect. It is inferior to adopting a new material and new structure, and has great economic value. Surface texture is due to plastic deformation and metal tearing between the tool or abrasive and the part during the processing, leaving various microscopic geometric forms of different shapes and sizes on the processed surface of the part. Due to the different surface textures, the contact between two objects is always discontinuous...

Claims

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Application Information

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IPC IPC(8): G01N3/56
Inventor 王怀庆司松海司乃潮杨道清刘光磊
Owner ZHENJIANG YINUOWEI SHAPE MEMORY ALLOYS
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