国家/地区 中国（4）
IPC部 B（4）
IPC大类 B05（4）
IPC小类 B05D（4）
IPC C09D163/00（4）
发明人 ZHANG B（2）
公开年 2013（2） 2023（2）
申请年 2013（2）  2022（2） 
专利权人 SHANGHAI YIL.（2）

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

Preparing internal spiral polyvinyl chloride drainage pipe, comprises e.g. bending and spiraling steel wire, extruding, injecting into brushing mechanism, carrying out spiral groove processing, forming inner spiral groove, spraying, extruding, painting and performing preliminary drying.

LIU Z

Solid lubricating coating for screw cap, comprises molybdenum disulfide, PTFE, graphite, graphene, tungsten disulfide, carbon monofluoride, epoxy resin, nitroresin and coating additives.

ZHANG B

Antifriction bearing bush coating useful for ship building comprises e.g. PTFE, tungsten disulfide, graphite, graphene, tungsten disulfide, carbon nanotube, corundum, silicon carbide, titanium oxide and fluorine-containing polyimide resin.

ZHANG B