upset rod

基本解釋

The surface cracking reasons of wire rod in upset process are analyzed.
線廠線材頂鍛加工表面開裂問題進行分析。
The mechanical properties and metallographic structures of the friction welded drill rod and the hot upset forged drill rod pipe are compared.
本文敘述了這種鉆桿的焊接性，并與采用熱鐓粗工藝生產(chǎn)的鉆桿管體金相組織和機械性能進行了對比。
The results show that the synthetic properties of geological drill rod by friction welding are better than that of the hot upset forged drill rod.
結(jié)果表明，與熱鐓粗的鉆桿相比，摩擦焊接的地質(zhì)鉆桿具有良好的綜合性能。