Title:
BELT PULLEY POWDER METALLURGY METHOD
Document Type and Number:
WIPO Patent Application WO/2019/047031
Kind Code:
A1
Abstract:
A belt pulley powder metallurgy preparation method, specifically comprising: uniformly mixing 1-5 parts of a graphite powder, 5-10 parts of an electrolytic copper powder, 2-8 parts of palmitic acid, 5-8 parts of nickel oxide, 50-98 parts of a reduced iron powder, 1-5 parts of manganese sulfide, 5-10 parts of chromium powder, 0.2-0.5 parts of tin powder, 0.5-1 part of micronized wax and 0.2-0.5 parts of a reinforcing agent; pressing the mixture to form a blank of a pre-set shape under the pressure of 60-70 MPa; feeding said product blank into a sintering electric furnace and sintering same into a semi-finished part; subjecting the semi-finished part to oil immersion, steam treatment, and cleaning to obtain a finished product. The raw material composition of the belt pulley is less polluting to the environment, and said method simplifies production steps and improves the production efficiency.
Inventors:
DAI WENFENG (CN)
Application Number:
PCT/CN2017/100594
Publication Date:
March 14, 2019
Filing Date:
September 05, 2017
Export Citation:
Assignee:
DAI WENFENG (CN)
International Classes:
C22C33/02; B22F3/16; F16H55/36
Domestic Patent References:
| WO2013127905A1 | 2013-09-06 |
Foreign References:
| CN104759614A | 2015-07-08 | |||
| CN102921945A | 2013-02-13 | |||
| CN102179519A | 2011-09-14 | |||
| CN102560249A | 2012-07-11 | |||
| CN102990068A | 2013-03-27 |
Attorney, Agent or Firm:
BEIJING YIGE INTELLECTUAL PROPERTY AGENT LTD (GENERAL PARTNERSHIP) (CN)
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