Binder system and method for particulate material cross-reference to related application
申请人:——
公开号:US20030220424A1
公开(公告)日:2003-11-27
The present invention relates to a binder composition comprising an aliphatic polyester polymer; an ethylenebisamide wax; and a guanidine wetting agent. The composition may also contain an additive which accelerates or extends debinding of the binder composition, and to a method for forming a sintered part by powder injection molding, including the steps of forming a green composition comprising a binder and an inorganic powder, wherein the binder is a composition comprising an aliphatic polyester polymer, an ethylenebisamide wax, and a guanidine wetting agent, and may further include an additive which accelerates or delays completion of debinding of the binder; melting the composition; injecting the composition into a mold for a part; heating the part to a temperature at which the binder decomposes; heating the part to a temperature at which the inorganic powder is sintered.
本发明涉及一种粘结剂组合物,该组合物包含脂肪族聚酯聚合物、乙烯双酰胺蜡和胍基润湿剂。本发明还涉及一种通过粉末注射成型形成烧结部件的方法,包括以下步骤:形成一种由粘结剂和无机粉末组成的绿色组合物,其中粘结剂是一种由脂肪族聚酯聚合物、乙烯双酰胺蜡和胍基润湿剂组成的组合物,并可进一步包括一种可加速或延迟完成粘结剂脱胶的添加剂;熔化组合物;将组合物注入零件模具;将零件加热到粘结剂分解的温度;将零件加热到无机粉末烧结的温度。