Preparation method of ceramic bond powder metallurgy mechanical parts

The invention discloses a preparation method of ceramic bond powder metallurgy mechanical parts, comprising the steps of: preparing materials, mixing the materials, sieving the materials, molding, keeping warm, heating and accurately machining physical dimension and surface finish of the parts. The...

Full description

Saved in:
Bibliographic Details
Main Authors YUN YUETING, ZHANG LIANG, LIN YUYANG, XIE QIAN, WANG LIUYONG, ZHANG JIANGXUE, ZHAO YU, YANG CONGBIN
Format Patent
LanguageChinese
English
Published 16.11.2011
Subjects
ALLOYS
CASTING
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
METALLURGY
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
WORKING METALLIC POWDER
Online AccessGet full text

Cover

More Information
Summary:The invention discloses a preparation method of ceramic bond powder metallurgy mechanical parts, comprising the steps of: preparing materials, mixing the materials, sieving the materials, molding, keeping warm, heating and accurately machining physical dimension and surface finish of the parts. The parts comprise following materials in proportions by weight: 40-60% of reduced iron powder, 0.5-1% of natural flake graphite powder, 36.5-56% of ultralow temperature ceramic bond, 2-2.5% of zirconium dioxide and 0.5% of industrial water glass. According to the method, the parts with normal temperature surface hardness of HRA80-100, crushing strength of 200-240 MPa at a temperature of1000 DEG C and frictional factor (a lubricating medium exists) of 0.02-0.03 can be conveniently molded in a low temperature technological condition. The preparation method has the advantages of simple technology, convenience for operation, no pollution, low cost and high efficiency.
Bibliography:Application Number: CN20111174003