国家/地区 中国（3）
IPC部 B（4）
IPC大类 B22（4）
IPC小类 B22D（4）
IPC C22C038/06（2） C22C038/44（2）
发明人
公开年
申请年
专利权人

Preparing pipe material comprises cleaning mineral-inorganic composite materials, grinding, melting, casting and forming in combination with pipe mold by means of centrifugal casting, demolding and cooling, heating and densifying, and coating anti-corrosion coating.

WANG P

Column wheel used for main reduction system of heavy-duty vehicle, comprises iron, carbon, manganese, chromium, nickel, aluminum, molybdenum, buffer damping mixture and diamond powder mixture.

YI Y, LI J, LI C

Graphene-containing graphite/aluminum-based self-lubricating sliding bearing comprises aluminum alloy layer outer ring, and graphite/aluminum-based self-lubricating composite layer inner ring.

YE X, XIAO K, CAO R, LIN X, WU B

Graphene-based steel tubes, pipes or risers used for conveying petroleum, gas and biofuels, and for use in underwater riser systems for deep water with direct application in petroleum industry, comprise aluminum, cobalt, copper and chromium.

CARVALHO A L M D, ZURBA N K, MOREIRA DE CARVALHO A L, MOREIRA D C A L