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High-strength piston ring

A piston ring, high-strength technology, applied in the field of high-strength piston rings, can solve the problems of large vibration amplitude, insufficient strength, affecting the normal operation of the engine, etc., and achieve the effect of prolonging life and high strength

Inactive Publication Date: 2015-10-28
潘应生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the increase of engine speed and the effect of supercharging, the explosive force of the engine has increased by as much as 1 / 3 on the basis of the original engine during the formation of work, which has resulted in the shock amplitude of the piston ring in the piston ring groove. The ordinary piston ring Its strength is not enough, and the amplitude of vibration at the opening is greater, and the phenomenon of ring mouth scuffing and breaking often occurs, which seriously affects the normal operation of the engine, increases the frequency of maintenance, and increases the maintenance cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] The present invention will be further described in conjunction with specific embodiment now.

[0012] A high-strength piston ring, the material formula weight percentage is: nitrile rubber 2.8-3.2%, natural rubber 1.8-2.2%, melamine resin 0.8-1.0%, polyvinyl chloride 0.06-0.10%, carbon black 1.2-1.4%, Pine tar 0.4-0.6%, bamboo fiber 0.6-0.8%, anti-aging agent 0.02-0.06%, plasticizer 0.01-0.06%, softener 0.01.2-0.004%.

[0013] The softener is oleic acid. The plasticizer is dioctyl phthalate.

[0014] The ratio of nitrile rubber is preferably 3-3.1%. The proportion of melamine resin is preferably 0.85-0.9%. The ratio of bamboo fiber is preferably 0.7-0.75%.

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PUM

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Abstract

The invention relates to a high-strength piston ring. The high-strength piston ring comprises, by weight, 2.8 to 3.2% of butadiene-acrylonitrile rubber, 1.8 to 2.2% of natural rubber, 0.8 to 1.0% of melamine resin, 0.06 to 0.10% of polyvinyl chloride, 1.2 to 1.4% of carbon black, 0.4 to 0.6% of pine tar, 0.6 to 0.8% of bamboo fiber, 0.02 to 0.06% of an antioxidant, 0.01 to 0.06% of a plasticizer and 0.012 to 0.004% of a softener. According to the invention, since the bamboo fiber is added, the prepared piston ring has the advantages of high strength and tear resistance; and the high-strength cold-resistant piston ring can be used for a long time at low temperature without any change to its physical and chemical properties at normal temperature, and the service life of the piston ring is prolonged.

Description

technical field [0001] The invention relates to a high-strength piston ring. Background technique [0002] With the gradual increase of engine speed, especially the increasing number of supercharged engines, traditional piston rings are no longer suitable for the performance requirements of modern engines. Due to the increase of engine speed and the effect of supercharging, the explosive force of the engine has increased by as much as 1 / 3 on the basis of the original engine during the formation of work, which has resulted in the shock amplitude of the piston ring in the piston ring groove. The ordinary piston ring Its strength is not enough, and the amplitude of vibration at the opening is greater, and the ring mouth often scuffs and breaks, which seriously affects the normal operation of the engine, increases the frequency of maintenance, and increases the maintenance cost. Contents of the invention [0003] The technical problem to be solved by the present invention is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L7/00C08L61/28C08L27/06C08L97/02C08K3/04C08K5/12
CPCC08L9/02C08L2205/035C08L2205/16C08L7/00C08L61/28C08L27/06C08L97/02C08L91/00C08K3/04C08K5/12C08K5/09
Inventor 潘应生
Owner 潘应生