国家/地区 中国（2）
IPC部 B（2）
IPC大类 B22（2） C09（2）
IPC小类 B22C（2）
IPC B22C003/00（2）
发明人
公开年 2022（2）
申请年 2022（2）
专利权人

Surface coating of copper roller of belt furnace used for neodymium-iron-boron material, comprises silica gel coating comprising silicate and water catalyzing by acidic catalyst.

QIU X

Casting ball iron large loader back seat by V method comprises making upper and lower part, heating film to high brightness, spray painting, releasing vacuum of the vacuumbox and closing and fastening upper and lower mold cavities.

CUI M, WANG D, WU Y, WU L