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type="audio/mp3"> </audio> </div> <div><p>精密鋼管</p><p>　　精密鋼管是一種通過冷拔或熱軋?zhí)幚砗蟮囊环N高精密的鋼管材料。由于精密鋼管內(nèi)外壁無氧化層、承受高壓無泄漏、高精度、高光潔度、冷彎不變形、擴(kuò)口、壓扁無裂縫等優(yōu)點(diǎn)，所以主要用來生產(chǎn)氣動(dòng)或液壓元件的產(chǎn)品，如氣缸或油缸，可以是無縫管，也有焊接管。</p><p>　　生產(chǎn)流程</p><p>　　精密鋼管的生產(chǎn)流程和普通的無縫管一樣，就是多了道最后酸洗冷軋的程序。</p><p>　　精密鋼管工藝流程</p><p>　　管坯——檢驗(yàn)——?jiǎng)兤ぁ獧z驗(yàn)——加熱——穿孔——酸洗鈍化——修磨——潤滑風(fēng)干——冷軋——去油——切頭——檢驗(yàn)——標(biāo)識(shí)——成品包裝</p><p>　　鋼管區(qū)別</p><p>　　1、無縫鋼管主要特點(diǎn)是無焊接縫，可承受較大的壓力。產(chǎn)品可以是很粗糙的鑄態(tài)或冷撥件。</p><p>　　2、精密鋼管是現(xiàn)代出現(xiàn)的產(chǎn)品，主要是內(nèi)孔、外壁尺寸有嚴(yán)格的公差及粗糙度。</p><p>　　產(chǎn)品特點(diǎn)</p><p>　　1.外徑更小。</p><p>　　2.精度高可做小批量生。</p><p>　　3.冷拔成品精度高，表面質(zhì)量好。</p><p>　　4.鋼管橫面積更復(fù)雜。</p><p>　　5.鋼管性能更優(yōu)越，金屬比較密。</p><p>　　3.冷拔成品精度高，表面質(zhì)量好。</p><p>　　4.鋼管橫面積更復(fù)雜。</p><p>　　5.鋼管性能更優(yōu)越，金屬比較密。</p><p>　　精密鋼管計(jì)算公式：:[(外徑-壁厚)*壁厚]*0.02466=kg/米(每米的重量)</p><p><br/></p> </div> <div id="jztbv5x" class="tags">TAGS標(biāo)簽：<a href="http://www.8za.com.cn/tags-jingmigangguan.html">精密鋼管</a></div> <div 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