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<h3> <a href="http://"><span style="font-size:36px;">彎頭機</span></a></h3> <p> <span style="font-size:20px;"><a href="http://">彎頭機</a>的生產(chǎn)制造工藝，彎頭是用于管道轉彎的一種管件，有90度彎頭，45度彎頭等等，可以根據(jù)工程需要生產(chǎn)制造，不同材料和不同壓力的彎頭生產(chǎn)制造工藝也不同，到目前為止，彎頭生產(chǎn)制造廠家常用的無縫彎頭生產(chǎn)制造工藝有熱推彎頭（中頻感應加熱彎頭機）、推制彎頭、對焊彎頭這幾種生產(chǎn)制造方法。熱推彎頭是無縫彎頭生產(chǎn)制造采用的一種工藝，采用彎頭推制機，芯模和加熱裝置，使用套在模具上的坯料在彎頭推制機的推動下向前面運行，在管子運行中進行加熱擴徑并彎曲成形的過程。熱推彎頭的變形特點是根據(jù)金屬材料變形前后體積不變的規(guī)律確定管坯直徑，在采用管子的時候，采用管子的口徑小于彎頭的口徑，在彎頭加熱變形中，補償?shù)揭驍U口徑</span></p> <p> <span style="font-size:20px;">而減薄其他部位，所以得到壁厚均勻的彎頭，這是推制彎頭生產(chǎn)制造工藝。推制機推制出來的彎頭，外觀漂亮，壁厚均勻可以連續(xù)生產(chǎn)制造，可以大批量生產(chǎn)推制彎頭，所以一般碳鋼彎頭，合金鋼彎頭生產(chǎn)制造的主要工藝就是選擇采用推制機推制彎頭生產(chǎn)制造，并也應用在某些規(guī)格的不銹鋼彎頭的成形中（熱成型<a href="http://">彎頭機</a>的優(yōu)勢）。</span></p> <div id="1666166" class="float_c news-page fs_14"> <div id="1666166" class="f_l"> 上一篇：<a href='/hyxw/1637.html'>彎頭推制機的原理知識</a> </div> <div id="1666166" class="f_r"> 下一篇：<a href='/hyxw/1640.html'>彎管機的結構構造</a> </div> </div> </div> </div> </div> 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