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Powder metallurgy material for rotator of transmission oil pump and using method of powder metallurgy material

A technology of powder metallurgy and oil pump, which is applied in the field of powder metallurgy, can solve problems such as not being able to meet the needs of use, and achieve the effects of high product density and performance indicators, strong reliability, and improved tensile strength

Active Publication Date: 2015-04-29
自贡市川力科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the transmission oil pump rotor is subjected to harsh working conditions, conventional powder metallurgy materials and processes cannot meet the needs of use

Method used

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  • Powder metallurgy material for rotator of transmission oil pump and using method of powder metallurgy material
  • Powder metallurgy material for rotator of transmission oil pump and using method of powder metallurgy material

Examples

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Effect test

Embodiment 1

[0031] An embodiment of the present invention provides a powder metallurgy material for a rotor of a transmission oil pump. The composition of the powder metallurgy material includes: 1% electrolytic copper (Cu) powder, 4% carbonyl nickel (Ni) powder, 0.1 % of lanthanum trioxide, 0.4% of graphite powder, 0.4% of molybdenum disulfide (MoS 2 ), the rest is iron powder, and micro-wax powder with an additional amount of 0.8%. The powder metallurgy has the advantages of high wear resistance, high tensile strength and Charpy impact value.

Embodiment 2

[0033] An embodiment of the present invention provides a powder metallurgy material for a rotor of a transmission oil pump. The composition of the powder metallurgy material includes: 3% electrolytic copper (Cu) powder, 2% carbonyl nickel (Ni) powder, 0.3 % of lanthanum trioxide, 0.8% of graphite powder, 0.7% of molybdenum disulfide (MoS 2 ), the rest is iron powder and micro-wax powder with an additional amount of 0.4%. The powder metallurgy has the advantages of high wear resistance, high tensile strength and Charpy impact value.

Embodiment 3

[0035] An embodiment of the present invention provides a powder metallurgy material for a rotor of a transmission oil pump. The components of the powder metallurgy material include: 2% electrolytic copper (Cu) powder, 3% carbonyl nickel (Ni) powder, 0.2 % of lanthanum trioxide (La 2 o 3 ), 0.6% graphite powder, 0.5% molybdenum disulfide (MoS 2 ), the rest is iron powder, and 0.6% micro-wax powder is added. The powder metallurgy has the advantages of high wear resistance, high tensile strength and Charpy impact value.

[0036] In order to solve the deficiencies of the prior art, the object of the present invention is to provide a method for using rotor powder metallurgy materials for transmission oil pumps with stable manufacturing process, strong reliability, high product density and high performance indicators.

[0037] In order to achieve the above object, the technical scheme that the present invention also adopts is:

[0038] refer to figure 1 As shown, the present in...

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Abstract

The invention discloses a powder metallurgy material for the rotator of a transmission oil pump and a using method of the powder metallurgy material. The powder metallurgy material comprises the following components in percentage by weight: 1-3 percent of Cu powder, 2-4 percent of Ni powder, 0.1-0.3 percent of La2O3, 0.4-0.8 percent of graphite powder, 0.4-0.7 percent of MoS2, the balance of Fe powder and additional 0.4-0.8 percent of micro wax powder. By virtue of adding two alloy elements, namely carbonyl Ni and rare-earth metal La, the tensile strength, Charp impact value, elongation and abrasion resistance of the powder metallurgy material are improved, and the cost of the powder metallurgy material is reduced. The invention further provides the using method of the powder metallurgy material for the rotator of the transmission oil pump. A product manufactured by the method has the advantages of stable manufacture procedure, high reliability, good product glossiness and high performance index.

Description

technical field [0001] The invention belongs to the technical field of powder metallurgy, and specifically discloses a rotor powder metallurgy material for a transmission oil pump and a use method thereof. Background technique [0002] Car freight is a very important logistics method, and there are currently more than 16 million trucks active on the front line in China. However, trucks frequently shift gears during transportation, which has a great impact on the road surface; during long-distance transportation, the driver's labor intensity is very high. In order to reduce the impact of trucks on the road and reduce the complexity of operation to improve the safety factor, the application of automatic transmissions on trucks has occupied 30% of the foreign market. As the driving device of the automatic transmission box of trucks, the transmission oil pump rotor has withstood harsh working conditions. The working oil pressure of the oil pump is 2.0Mpa to 3.0Mpa, and the serv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/16B22F3/16B22F3/26
Inventor 施洋王晓兵何宁欧真虎
Owner 自贡市川力科技股份有限公司