文章來源:天(tian)津大無縫鋼管(guan)廠| 時(shi)間(jian):2019/3/4 10:48:51
2.冷(leng)拔(ba)(軋(ya))無縫鋼管:圓(yuan)管坯(pi)→加熱(re)(re)→穿孔→打頭→退火→酸洗→涂(tu)油(鍍銅)→多道次冷(leng)拔(ba)(冷(leng)軋(ya))→坯(pi)管→熱(re)(re)處理→矯直→水壓(ya)試驗(探(tan)傷)→標記(ji)→入庫
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