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PROCEDE POUR LA FABRICATION D'UN CORPS PROFILE EN UTILISANT LA METHODE DU COMPRIME CRU
专利权人:
DEGUDENT GMBH
发明人:
HACHENBERG, JOERG,STEINKE, RUDI,VOLLMANN, MARKUS,WISSEL, IRMGARD,ZELLMANN, GERHARD,HOCK, ELMAR,FECHER, STEFAN,VOELKI, LOTHAR
申请号:
CA2758151
公开号:
CA2758151A1
申请日:
2011.11.08
申请国别(地区):
CA
年份:
2012
代理人:
摘要:
The invention relates to a method for the manufacture of a shaped body. Forthe purposeof producing the shaped body with extremely low tolerances and to be able tomachineit using wet and dry processes without any problems, the following processingsteps aresuggested: creating a mixture of a metal powder and a binding agent,compacting themixture to form a green compact, heating the green compact from roomtemperature toa debinding start temperature T1, debinding the green compact by controlledheating ofthe green compact from the debinding start temperature T1 to a debinding endtemperature T2 at a heat-up rate R1 in a manner that prevents damage to thegreencompact, presintering the debindered green compact to the presinter endtemperature T VSat a heat-up rate R HVS, cooling the green compact from the presinter endtemperature T VSat a cool-down rate R KVS, whereby at least the heat-up rate R HVS, thepresinter endtemperature T VS, and the cool-down rate R KVS are tuned relative to eachother in such away that the presintered green compact forming a blank possesses a surfaceporosity ofbetween 16% and 22% after presintering, and finally material-removingmachining ofthe blank and sintering the machined blank to final density to form the shapedbody.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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