国家/地区 中国（2）
IPC部 D（2）
IPC大类 D01（2）
IPC小类 D01D（2）
IPC
发明人
公开年 2022（2）
申请年 2022（2）
专利权人

Composite thermal insulation yarn useful in petroleum field, comprises graphene fibers for heating and graphene silica gel composite layer wrapped in graphene fibers, where graphene silica gel composite layer is composed of precursor solutions including e.g. graphene powder and liquid silica gel.

SHEN Y

Forming device for graphene filament fiber, has unit heat exchange pipe provided with supply pipe body, supply pipe main body provided with U-shaped through cavity, through cavity provided with elastic heat conducting pipe for slow cooling heat exchange.

HAN L, DENG J, DENG Q