Powder-metallurgy automobile transmission gear and manufacturing method thereof

The invention discloses a powder-metallurgy automobile transmission gear and a manufacturing method thereof. The powder-metallurgy automobile transmission gear takes atomized iron powder as a base material and also comprises the following components in weight percentage of: 4%-6% of carbonyl iron po...

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Bibliographic Details
Main Author XU DAOSHENG
Format Patent
LanguageChinese
English
Published 31.10.2012
Subjects
BLASTING
CASTING
CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS
CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT
ENGINEERING ELEMENTS AND UNITS
GEARING
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
HEATING
LIGHTING
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
MECHANICAL ENGINEERING
PERFORMING OPERATIONS
POWDER METALLURGY
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
THERMAL INSULATION IN GENERAL
TRANSPORTING
WEAPONS
WORKING METALLIC POWDER
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Summary:The invention discloses a powder-metallurgy automobile transmission gear and a manufacturing method thereof. The powder-metallurgy automobile transmission gear takes atomized iron powder as a base material and also comprises the following components in weight percentage of: 4%-6% of carbonyl iron powder, 0.8%-1.0% of copper powder, 4%-6% of waste steel powder, 1.2%-1.3% of manganese sulfide powder, 0.5%-0.7% of molybdenum disulfide powder, 0.7%-0.9% of chromium powder, 0.2%-0.4% of tungsten powder, 0.02%-0.03% of niobium powder, 1.1%-1.4% of graphite, 1.0%-1.5% of polyamide wax micro-powder and 1.2%-1.8% of stearic acid. According to the gear disclosed by the invention, the HRC (Rockwell hardness) of the tooth face of the gear is equal to 48-55, and the wear resistance of the gear is good. The powder-metallurgy automobile transmission gear is good in impact resisting capability, high in bearing capability, can meet production requirements and is applicable to rapid large-batch production.
Bibliography:Application Number: CN20121207400