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什么是不銹鋼管件
發布時間:2019-04-15  瀏覽:
不銹鋼管件屬于管件中的一種,它是由不銹鋼的材質制成所以叫不銹鋼管件。不銹鋼管件中包含:不銹鋼彎頭,不銹鋼三通,不銹鋼四通,不銹鋼大小頭,不銹鋼法蘭等。

異徑管縮口,就是將不銹鋼大小頭大口徑的管的一端加熱到紅熱狀態,用錘砸,使其口徑縮小,20#鋼熱壓大小頭異徑管,成為一頭大一頭小的管件,俗稱“大小頭”,或“變徑”。有時不銹鋼大小頭兩端口徑差異太大,就把大口徑的管的一端先割去幾條弧面三角形片,然后再加熱到紅熱狀態,用錘砸,使其割去的缺口再靠到一起形成接縫處,并將形成的小端口整圓,后將接縫焊好。  根據異徑管變徑的大小,分為一次壓制成形或多次壓制成形。沖壓成形除使用鋼管為原料生產大小頭外,對部分規格的大小頭還可用鋼板采用沖壓成形工藝進行生產。拉伸所使用的沖模形狀參照大小頭內表面尺寸設計,用沖模將下料后的鋼板沖壓拉伸成形。

除使用鋼管為原料生產大小頭外,對部分規格的大小頭還可用鋼板采用沖壓成形工藝進行生產。  大小頭(異徑管)是用于管道口徑的一種管件。不銹鋼大小頭通常采用的成形工藝為縮徑壓制、擴徑壓制或縮徑加擴徑壓制,對某些規格的異徑管也可采用沖壓成形??s徑/擴徑成形大小頭的縮徑成形工藝是將與大小頭大端直徑相等的管坯放入成形模中,通過沿管坯軸向方向的壓制,使金屬沿模腔運動并收縮成形。

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