国家/地区 中国（2）
IPC部 B（2）
IPC大类 B32（2）
IPC小类 B32B（2）
IPC B32B009/00（2） B32B009/04（2） B32B033/00（2）
发明人 YANG C（2）
公开年 2021（2）
申请年 2021（2）
专利权人

Heat conducting and insulating method for an oil pumping pipe. , Heat conducting and insulating method applied to oil pumping pipe, involves setting sealing structure at joint of two sections of heat insulation structure, after drying graphene/carbon coating.

LOU S, ZHAI L, YANG C, JIANG B

Preparation of layered microwave absorbing material includes laser carbonizing polymer film, coating mixture solution of metal salts on base layer, laser processing mixed solution of metal salt to form loss layer, coating high molecular polymer solution on loss layer and annealing material.

SU Z, GAO Q, WANG F, LIU M, YANG C