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class="jqzoom"><img src="http://i3776.bvimg.com/10097/dfc232990375f494.jpg" /></span> </div>  <div id="d5t1bth" class="spec-scroll"> <a class="prev"><</a> <a class="next">></a> <div id="hzbxd11" class="items"> <ul> <li><img src="http://i3776.bvimg.com/10097/dfc232990375f494.jpg" onmousemove="preview(this);"></li> </ul> </div> </div> </div> <div id="d5h5lnv" class="product_right fr"> <h3>Q550D鋼板價(jià)格多少錢(qián)一噸</h3> Q550D鋼板價(jià)格多少錢(qián)一噸專(zhuān)業(yè)生產(chǎn)Q550D鋼板實(shí)力廠(chǎng)家庫存充足發(fā)貨及時(shí) 全年不停產(chǎn)_現貨當天發(fā) 公司實(shí)力強,服務(wù)周道 , 可接大單急單. </div> </div> <div id="dpldx11" class="clear"></div> <div id="f1fvppx" class="xiangqing"> <div id="p1jdrhn" class="xiangqing2"> <div id="dx1bfdf" class="xiangqing3"><p>產(chǎn)品詳情</p></div> <div id="bdx51nb" class="xiangqing4"> <p>Q550D鋼板價(jià)格多少錢(qián)一噸專(zhuān)業(yè)生產(chǎn)Q550D鋼板實(shí)力廠(chǎng)家庫存充足發(fā)貨及時(shí) 全年不停產(chǎn)_現貨當天發(fā) 公司實(shí)力強,服務(wù)周道 , 可接大單急單.</p> <p><img src="http://i3776.bvimg.com/10097/dfc232990375f494.jpg" alt="Q550D鋼板" /></p> <p>沸騰鋼板與鎮靜鋼板</p> <p> </p> <p>1、沸騰鋼板是由普通碳素結構鋼沸騰鋼熱軋成的鋼板。沸騰鋼是一種脫氧不完全的鋼，只用一定量的弱脫氧劑對鋼液脫氧，鋼液含氧量較高，當鋼水注入鋼錠模后，碳氧反應產(chǎn)生大量氣體，造成鋼液沸騰，沸騰鋼由此而得名。沸騰鋼含碳量低，由于不用硅鐵脫氧，鋼中含硅量也低（Si<0.07%）。沸騰鋼的外層是在沸騰所造成的鋼液劇烈攪動(dòng)的條件下結晶成的，故表層純凈、致密，表面質(zhì)量好，有很好的塑性和沖壓性能，沒(méi)有大的集中縮孔，切頭少，成材率高，而且沸騰鋼生產(chǎn)工藝簡(jiǎn)單，鐵合金消耗少，鋼材成本低。沸騰鋼板大量用于制造各種沖壓件，建筑及工程結構及一些不太重要的機器結構零部件。但沸騰鋼心部雜質(zhì)較多，偏析較嚴重，組織不致密，力學(xué)性能不均勻。同時(shí)由于鋼中氣體含量較多，故韌性低，冷脆和時(shí)效敏感性較大，焊接性能也較差。故沸騰鋼板不適于制造承受沖擊載荷、在低溫條件下工作的焊接結構及其他重要結構。</p> <p> </p> <p>2、鎮靜鋼板是由普通碳素結構鋼鎮靜鋼熱軋制成的鋼板。鎮靜鋼是脫氧完全的鋼，鋼液在澆注前用錳鐵、硅鐵和鋁等進(jìn)行充分脫氧，鋼液含氧量低（一般為0.002-0.003%），鋼液在鋼錠模中較平靜，不產(chǎn)生沸騰現象，鎮靜鋼由此得名。在正常操作條件下，鎮靜鋼中沒(méi)有氣泡，組織均勻致密；由于含氧量低，鋼中氧化物夾雜較少，純凈度較高，冷脆和時(shí)效傾向??；同時(shí)，鎮靜鋼偏析較小，性能比較均勻，質(zhì)量較高。鎮靜鋼的缺點(diǎn)是有集中縮孔，成材率低，價(jià)格較高。因此，鎮靜鋼材主要用于低溫下承受沖擊的構件、焊接結構及其他要求強度較高的構件。</p> <p> </p> <p>低合金鋼板都是鎮靜鋼和半鎮靜鋼鋼板。由于強度較高，性能優(yōu)越，能節約大量鋼材，減輕結構重量，其應用已越來(lái)越廣泛。</p> </div> </div> </div> <div id="xdvtblh" class="JLTupdown"> <ul> <li><strong>上一篇：</strong><a 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