A surface treatment method for an anti-wear ring of a cylinder liner

A surface treatment and anti-wear ring technology, which is applied in heat treatment furnaces, heat treatment equipment, metal material coating processes, etc. to improve mechanical hardness, reduce pollution, and meet size requirements.

Active Publication Date: 2019-06-18
ZHONGYUAN HUAGONG LASER ENG HENAN PROV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a surface treatment method for the anti-wear ring of the cylinder liner. By combining phosphating processing with laser surface strengthening treatment, the wear resistance and wear resistance of the anti-wear ring of the cylinder liner are solved. Corrosion resistance and hardness and other issues enable it to be used for a long time, avoiding high-frequency replacement and causing unnecessary waste

Method used

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Embodiment 1

[0024] This embodiment is used to illustrate the surface treatment method of the cylinder liner anti-wear ring of the present invention.

[0025] Specifically include the following steps:

[0026] Preparation of manganese-phosphorus co-infiltration solution: Prepare 1L mixed aqueous solution, which contains 7.496 grams of phosphoric acid, 70 grams of manganese dihydrogen phosphate, 3 grams of nickel nitrate, 0.5 grams of citric acid, 0.002 grams of copper sulfate, 0.01 grams of lanthanum nitrate, and 0.01 grams of cerium nitrate 1. 0.01 g of bismuth nitrate; add 2 g of reduced iron powder into the mixed aqueous solution and react at 100 ° C. After the reaction is completed and the manganese-phosphorus co-infiltration solution is stable, it can be used.

[0027] Use the manganese-phosphorus co-infiltration solution to carry out manganese-phosphorus co-infiltration on the surface of the anti-wear ring of Cummins 137 cylinder liner. Specifically, the anti-wear ring is degreased a...

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Abstract

The invention discloses a surface treatment method of an anti-wear ring of a cylinder sleeve. The surface treatment method comprises steps as follows: 1) a formed anti-wear ring of the cylinder sleeveis pretreated, and pretreatment means phosphorization processing; 2) the pretreated anti-wear ring of the cylinder sleeve is subjected laser surface strengthening, wherein the treatment parts comprise an inner hole and a cutting edge of the anti-wear ring; 3) the treated anti-wear ring of the cylinder sleeve is polished; 4) checking and packaging are performed. By means of the surface treatment method, the problems of wear resistance, corrosion resistance, hardness and the like of the anti-wear ring of the cylinder sleeve can be effectively solved, the anti-wear ring of the cylinder sleeve can be used for a long time, and high-frequency replacement and unnecessary waste are avoided; besides, wear of the cylinder sleeve can also be reduced, engine oil is prevented from moving upwards intoa combustion chamber, consumption of the engine oil is reduced, fuel gas leakage is reduced, granularity emission is reduced, the sealing property is improved, and power of an engine is increased.

Description

technical field [0001] The invention belongs to the field of mechanical processing, and in particular relates to a surface treatment method for an anti-wear ring of a cylinder liner. Background technique [0002] With the rapid development of international and domestic economic construction, medium-speed and high-power diesel engine technology and its application have broad prospects, but the lateral swing of the cylindrical piston and the carbon deposit on the top of the piston will increase the wear and tear of the cylinder liner, causing the cylinder liner to appear elliptical and working conditions Deterioration, increased oil consumption. Diesel engine manufacturers at home and abroad are doing technical improvement research to reduce oil consumption, reduce particle size emissions, and prolong cylinder liner life. [0003] Adding an anti-wear ring to the cylinder liner is an effective solution. During the working process of the engine, when the piston and piston ring...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C22/18C21D1/09C21D9/40
Inventor 张竞张书毓甄文忠乔娇娇
Owner ZHONGYUAN HUAGONG LASER ENG HENAN PROV
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