申请人:Amano, Shigehisa
公开号:EP1717349A1
公开(公告)日:2006-11-02
A protective film agent (M) and a method of forming a protective layer in which the protective film agent (M) is applied to an outer surface of a die mold (9), or applied to an outer surface of the die mold (9) except for a cavity (10) resides. The protective film agent (M) has a liquid mixture prepared by urethane methyl-ethyl ketone and ethyl acetate. A curability enhancement is prepared by an isocyanate-based compound and ethyl acetate. A protective film agent (M) tightly covers the outer surface of the die mold (9) as a protective layer (11), and protects it against the rust, soil and damage. The protective layer (11) has a heat-resistant temperature (around 100°C), and withstands against the operating temperature of 70-80°C , to which the protective layer (11) is subjected at the time of implementing the die forging procedure. A flake-resistance and crack-resistance are improved against an impact, thereby protecting the protective layer (11) against cracks and nicks supposed to occur when the die mold (9) collides with other member.
一种保护膜剂(M)和一种形成保护层的方法,其中保护膜剂(M)应用于模具(9)的外表面,或应用于模具(9)的外表面,但模腔(10)除外。保护膜剂 (M) 是由聚氨酯甲乙酮和乙酸乙酯制备的液体混合物。固化增强剂由异氰酸酯基化合物和乙酸乙酯制备。保护膜剂 (M) 作为保护层 (11) 紧紧地覆盖在模具 (9) 的外表面,防止其生锈、脏污和损坏。保护层(11)具有耐热温度(约 100°C),并能承受 70-80°C 的工作温度,在执行模锻程序时,保护层(11)会受到工作温度的影响。保护层 (11) 的抗剥落性和抗裂性在受到冲击时得到改善,从而保护保护层 (11) 在模具 (9) 与其他部件碰撞时不会出现裂纹和划痕。