Plastic type专利检索- 以铅字或印模的安装布置或排列为特征的打字机或选择性印刷机构专利检索查询-专利查询网

Plastic type
申请号	JP14183581	申请日	1981-09-09	公开(公告)号	JPS5845060A	公开(公告)日	1983-03-16
申请人	Dainippon Printing Co Ltd;			发明人	TAKAHASHI TATSUMI;
摘要	PURPOSE:To improve the durability of a plastic type against deformation, crack and wear by such an arrangement wherein a material for forming plastic types is prepared with polyethylene resin of super high molecular weight as a main ingredient and glass fiber or carbon fiber is incorporated to into the resin. CONSTITUTION:As a forming material, a material primarily composed of polyethylene resin of super high molecular weight of 2-6 millions in molecular weight is used. By the use of this material, the forming material has such features as self lubricating property, wear resistance, solvent resistance and chemical resistance. The creep resistance for repeated impact of the material is raised by adding fiber materials such as glass fiber, carbon fiber, etc. and puluerized materials such as Al2O3, TiO3 etc. to the resin. Plastic types are formed by compression forming by using metal molds of flush type, positive type or semipositive type.
权利要求
说明书全文