国家/地区 中国（2）
IPC部 B（2）
IPC大类 B05（2）
IPC小类 B05D（2）
IPC B05D003/02（2）
发明人
公开年
申请年 2022（2） 
专利权人

Preparing coating for screw thread, comprises e.g. providing workpieces with screw thread, pretreating screw thread part of workpieces with screw thread; sandblasting workpiece with screw thread after pretreatment; and preheating workpiece with screw thread after sandblasting.

SUN J, WANG Y, WANG L, LI R, SONG X, LIU X

Production process of wear-resistant gasket of graphene composite lubricating coating involves pre-treatment of steel raw material for blanking finishing, forming gasket, and cleaning, removing surface oil stain, and heat treatment.

YIN M