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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>廣東大小頭制造商</p><p><span>***更新：</span>2020-06-06 01:03:59</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="mbif3yf" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">河北長(zhǎng)洪管業(yè)有限公司</a></p><p><span>聯(lián)系人：</span>賈世豪</p><p><span>郵箱: </span>2047452166@qq.com</p><p><span>電話: </span>17363075791</p><p><span>傳真: </span>0317_5538516</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0317-5538516</p><p><span>地址: </span>河北省滄州市孟村回族自治縣孟村鎮(zhèn)二街</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="ed7riah" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ixewykm" class="box"><p><p style="text-indent:25px">彎矩引起大端相對(duì)張開、小端相對(duì)收縮的現(xiàn)象。規(guī)范系統(tǒng)國(guó)際上管法蘭規(guī)范主要有兩個(gè)系統(tǒng)，即以德國(guó)DIN(包含原蘇聯(lián))為**的歐洲管法蘭系統(tǒng)和以美國(guó)ANSI管法蘭為**的美洲管法蘭系統(tǒng)。除此之外，還有日本JIS管法蘭，但在石油化工裝置中一般*用于公用工程，而且在國(guó)際上影響較小?，F(xiàn)將各國(guó)管法蘭簡(jiǎn)介于下:1，以德國(guó)及原蘇聯(lián)為**的歐洲系統(tǒng)管法蘭2，美洲系統(tǒng)管法蘭規(guī)范，以ANSI B16.5和ANSI B 16.47為**3，英國(guó)和法國(guó)管法蘭規(guī)范，兩國(guó)各有兩套管法蘭規(guī)范。綜上所述，廣東大小頭制造商，廣東大小頭制造商，國(guó)際上通用的管法蘭規(guī)范可歸納為兩個(gè)不同的，廣東大小頭制造商，且不能交換的管法蘭系統(tǒng):一個(gè)以德國(guó)為**的歐洲管法蘭系統(tǒng);另一個(gè)是以美國(guó)為**的美洲管法蘭系統(tǒng)。OS7005-1是于1992年頒布的一項(xiàng)規(guī)范，該規(guī)范實(shí)際上是把美國(guó)和德國(guó)兩套系列的管法蘭兼并而成的管法蘭規(guī)范。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣東大小頭制造商" src="http://tyunfile.71360.com/UpLoadFile/2019/6/25/18/636970839243737809_jiazong01_2528311.jpg"></div><p style="text-indent:25px">變徑規(guī)劃的操控，一般情況下，大小頭一次加工規(guī)劃都在一級(jí)之內(nèi)，比如說325-159的大小頭，基本需求經(jīng)過好幾次的加熱處理，先是把325的管子約束一頭，把325的孔徑約束成273，這次約束也是需求經(jīng)過加熱的，第2次變徑則是273變徑219的進(jìn)程，這次也是需求把管子加熱到指定的溫度，然后約束。然后就是219變徑成159的進(jìn)程，每一次變徑都是需求經(jīng)過熱處理的。介質(zhì)帶有雜質(zhì)且速度低于雜質(zhì)沉降速度的采用底平設(shè)備。原則是不形成氣袋。一般是“前進(jìn)底平，大小頭、異徑管、異徑直通?；す芗?，用于兩種不同管徑的管道之間的聯(lián)接。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣東大小頭制造商" src="http://tyunfile.71360.com/UpLoadFile/2019/6/27/9/636972260272426339_jiazong01_4843687.jpg"></div><p style="text-indent:25px">不銹鋼大小頭變徑管報(bào)價(jià)-潤(rùn)鵬管道大小頭的出產(chǎn)基本都是以壓制為主，可是壓制的過程會(huì)使得鋼材的硬度和密度變大，然而假如不通過加熱的話，就會(huì)很容易發(fā)生裂紋。 <p> 異徑管reducer又稱大小頭、異徑管、異徑直通?；す芗?，用于兩種不同管徑的管道之間的銜接。大小頭焊后硬化性較大，容易發(fā)生裂紋。大小頭出產(chǎn)工藝簡(jiǎn)單，出產(chǎn)效率高，成本低，發(fā)展較快。大小頭出產(chǎn)的首要原材料在大小頭出產(chǎn)成本中占有很大比例，其價(jià)格的改變直接影響大小頭出產(chǎn)成本的改變。若選用同類型的不銹鋼沖壓彎頭焊接，有必要進(jìn)行300℃以上的預(yù)熱和焊后700℃左右的緩冷處理。若焊件不能進(jìn)行焊后熱處理，則應(yīng)選用大小頭焊條。跟著世界經(jīng)濟(jì)的不斷發(fā)展，收入水平的不斷提高，我們方針面向世界先進(jìn)的建筑業(yè)及船舶業(yè)等相關(guān)行業(yè)。大小頭以銜接收件為主，在這一產(chǎn)品的發(fā)展范疇能夠擔(dān)任重?fù)?dān)，具備世界前列技術(shù)水平而啟航。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣東大小頭制造商" src="http://tyunfile.71360.com/UpLoadFile/2019/6/27/9/636972260273051747_jiazong01_5525992.jpg"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/159292.html</p></div></div></div></div></div><div id="srt8qqs" class="page-right twoColRt"><div id="zogikm7" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3szrowy" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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