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tcPro"><section class="home-main container clearfix"><div id="y0bbo0v" class="twoCol"><div id="dox5rc0" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/second-_wjgj/">五金、工具</a>?<a href="http://www.cdcfah.com/cp/third-wjgj_guanjianbi/">管件</a>?湖南法蘭鍛件網(wǎng)站 **** 河北海浩高壓法蘭管件供應(yīng)</p><div id="mpf300u" class="leftbox clearfix"><h1>湖南法蘭鍛件網(wǎng)站 **** 河北海浩高壓法蘭管件供應(yīng)</h1><div id="rysmgk3" class="proBig"><div id="mq5zj0p" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/7/9/9/636982622955199663_hbhhgs_5599618.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="pqcib80" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/7/9/9/636982622955199663_hbhhgs_5599618.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="hdx5ol3" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>河北省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>湖南法蘭鍛件網(wǎng)站</p><p><span>***更新：</span>2020-05-24 01:46:04</p><p><span id="click" >瀏覽次數(shù)：8次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="hwekv0d" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">河北海浩高壓法蘭管件集團(tuán)有限公司</a></p><p><span>聯(lián)系人：</span>董學(xué)文</p><p><span>郵箱: </span>1390756017@qq.com</p><p><span>電話: </span>15028729866</p><p><span>傳真: </span>0317_6866720</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0317-6866720</p><p><span>地址: </span>河北省孟村縣辛大路付林路段</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="8kok0gz" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="hiq8xfc" class="box"><p><p style="text-indent:25px">(3)過熱金屬坯料由加熱溫度過高或高溫下保溫時(shí)間太長引起晶粒粗大的現(xiàn)象稱為過熱。過熱會(huì)使坯料塑性下降，鍛件的力學(xué)性能降低。為此，要嚴(yán)格控制加熱溫度，盡可能縮短高溫階段的保溫時(shí)間來預(yù)防過熱的產(chǎn)生。 (4)過燒金屬坯料加熱溫度超過始鍛溫度過多，使晶粒邊界出現(xiàn)氧化及熔化的現(xiàn)象稱為過燒。過燒后，材料的強(qiáng)度嚴(yán)重下降，塑性很差，一經(jīng)鍛打即破碎變成廢料，是無法挽救的。因此，要嚴(yán)格執(zhí)行正確的操作規(guī)范。 (5)裂紋大型鍛件加熱時(shí)，如果裝爐溫度過高或加熱速度過快，則鍛件心部與表層溫差過大，造成內(nèi)應(yīng)力過大，湖南法蘭鍛件網(wǎng)站，導(dǎo)致產(chǎn)生裂紋。因此，湖南法蘭鍛件網(wǎng)站，湖南法蘭鍛件網(wǎng)站，對(duì)大型鍛件加熱時(shí)，要防止裝爐溫度過高和加熱速度過快，一般應(yīng)采用防熱措施。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南法蘭鍛件網(wǎng)站" src="http://tyunfile.71360.com/UpLoadFile/2019/7/9/9/636982622955199663_hbhhgs_5599618.jpg"></div><p style="text-indent:25px">鍛件是指通過對(duì)金屬坯料進(jìn)行鍛造變形而得到的工件或毛坯。利用對(duì)金屬坯料施加壓力，使其產(chǎn)生塑形變形，可改變其機(jī)械性能。鍛件按坯料在加工時(shí)的溫度，可分為冷鍛溫鍛和熱鍛。冷鍛一般是在室溫下加工，熱鍛是在高于金屬坯料的再結(jié)晶溫度下加工。鍛件熱處理按其熱處理的目的不同可分為兩組。通過鍛造可消除金屬的疏松?？锥矗瑰懠臋C(jī)械性能得以提高。鍛件幾何形體結(jié)構(gòu)復(fù)雜程度差異，決定其模鍛工藝和模具設(shè)計(jì)有明顯區(qū)別，明確鍛件結(jié)構(gòu)類型是進(jìn)行工藝設(shè)計(jì)的必要前提。業(yè)內(nèi)將一般鍛件分為3類，每類中再細(xì)分為3組，共9組。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南法蘭鍛件網(wǎng)站" src="http://tyunfile.71360.com/UpLoadFile/2019/7/9/9/636982622954887549_hbhhgs_5287487.jpg"></div><p style="text-indent:25px">4)節(jié)約原材料。例如汽車上用的靜重17kg的曲軸，采用軋材切削鍛造時(shí)，切屑要占曲軸重量189%，而采用模鍛時(shí)，切屑只占30%，還縮短機(jī)加工工時(shí)1/6。精密鍛造的鍛件，不僅可節(jié)約更多的原材料，而且也可節(jié)約更多的機(jī)加工工時(shí)。 5)生產(chǎn)率高。例如采用兩臺(tái)熱模鍛壓力機(jī)模鍛徑向止推軸承，可以代替30臺(tái)自動(dòng)切削機(jī)床。采用頂鍛自動(dòng)機(jī)生產(chǎn)M24螺母時(shí)，六軸自動(dòng)車床生產(chǎn)率的17.5倍。 6)自由鍛造靈活性大 [6] ，因此，一些修造廠中多地采用鍛造方法生產(chǎn)各種配件。</p><div style="width:100%;text-align: 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