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class="pic"><img src="https://tyunfile.71360.com/UploadFile/jinxunjingujian/637388103862469118/1415680.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="tiali8u" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jinxunjingujian/637388103862469118/1415680.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3ma88gr" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>江蘇螺栓求購(gòu),螺栓</p><p><span>***更新：</span>2020-12-04 02:23:09</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="zyv89km" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">晉迅緊固件（上海）有限公司</a></p><p><span>聯(lián)系人：</span>陳帥</p><p><span>郵箱: </span>sales@gemx.cn</p><p><span>電話: </span>15858568787</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://jinxunjingujian.shop.88360.com</p><p><span>手機(jī): </span>021-52236587</p><p><span>地址: </span>蘇虹路333號(hào)215-6室</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="oczbyqs" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="zo3ifmt" class="box"><p><p style="text-indent:25px">建筑結(jié)構(gòu)的主構(gòu)件的螺栓連接，一般均采用**螺栓連接。普通螺栓可重復(fù)使用，**螺栓不可重復(fù)使用。**螺栓一般用于長(zhǎng)效連接。**螺栓是預(yù)應(yīng)力螺栓,摩擦型用扭矩扳手施加規(guī)定預(yù)應(yīng)力,承壓型擰掉梅花頭。普通螺栓抗剪性能差，江蘇螺栓求購(gòu)，可在次要結(jié)構(gòu)部位使用。普通螺栓只需擰緊即可。普通螺栓一般為4.4級(jí)、4.8級(jí)、5.6級(jí)和8.8級(jí)。**螺栓一般為8.8級(jí)和10.9級(jí)，江蘇螺栓求購(gòu)，其中10.9級(jí)居多。8.8級(jí)與8.8S是相同等級(jí)。普通螺栓與**螺栓的受力性能與計(jì)算方法均有所區(qū)別的。**螺栓的受力首先是通過在其內(nèi)部施加預(yù)拉力P，江蘇螺栓求購(gòu)，然后在被連接件之間的接觸面上產(chǎn)生摩擦阻力來(lái)承受外荷載的，而普通螺栓則是直接承受外荷載的。螺栓疲勞強(qiáng)度實(shí)驗(yàn)中需反復(fù)振動(dòng)一百萬(wàn)次。江蘇螺栓求購(gòu)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇螺栓求購(gòu),螺栓" src="https://tyunfile.71360.com/UploadFile/jinxunjingujian/637388103862469118/1415680.png"></div><p style="text-indent:25px">**度的螺栓連接具有施工簡(jiǎn)單、受力性能好、可拆換、耐疲勞、以及在動(dòng)力荷載作用下不致松動(dòng)等優(yōu)點(diǎn)，是很有發(fā)展前途的連接方法。 **度螺栓是用特制的扳手上緊螺帽，使螺栓產(chǎn)生巨大而又受控制的預(yù)拉力，通過螺帽和墊板，對(duì)被連接件也產(chǎn)生了同樣大小的預(yù)壓力。在預(yù)壓力作用下，沿被連接件表面就會(huì)產(chǎn)生較大的摩擦力，顯然，只要軸力小于此摩擦力，構(gòu)件便不會(huì)滑移，連接就不會(huì)受到破壞，這就是**度螺栓連接的原理。 **度螺栓連接是靠連接件接觸面間的摩擦力來(lái)阻止其相互滑移的，為使接觸面有足夠的摩擦力，就必須提高構(gòu)件的夾緊力和增大構(gòu)件接觸面的摩擦系數(shù)。江蘇螺栓求購(gòu)螺栓M表示“公制，米制”螺紋。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇螺栓求購(gòu),螺栓" src="https://tyunfile.71360.com/UploadFile/jinxunjingujian/637388103977810875/6719938.png"></div><p style="text-indent:25px">螺栓等級(jí)含義：依相關(guān)標(biāo)準(zhǔn)，碳鋼、合金鋼螺栓性能等級(jí)分3.6、4.6、4.8、5.6、6.8、8.8、9.8、10.9、12.9等10余個(gè)等級(jí)，其中8.8級(jí)及以上螺栓材質(zhì)為低碳合金鋼或中碳鋼并經(jīng)熱處理（淬火、回火），通稱為**度螺栓，其余通稱為普通螺栓。螺栓性能等級(jí)標(biāo)號(hào)有兩部分?jǐn)?shù)字組成，分別表示螺栓材料的公稱抗拉強(qiáng)度值和屈強(qiáng)比值。不銹鋼螺栓根據(jù)鋼的類別性能等級(jí)分為A1-50、A1-70、A1-80、A2-50、A2-70、A2-80、A3-50、A3-70、A3-80、A4-50、A4-70、A4-80、A5-50、A5-70、A5-80、C1-50、C1-70、C1-110、C4-50、C4-70、C3-80、F1-45、 F1-60。其中第1個(gè)字母和數(shù)字表示不銹鋼的組別，第2、3個(gè)數(shù)字表示抗拉強(qiáng)度的1/10。</p><p style="text-indent:25px">解析法蘭螺栓(DIN6921/GB5787)進(jìn)行鏈接所具備的特點(diǎn)。法蘭螺栓(DIN6921/GB5787)加快施工進(jìn)度：**度法蘭螺栓施工簡(jiǎn)便，對(duì)于一個(gè)不熟悉**度法蘭螺栓施工的工人，只要經(jīng)過簡(jiǎn)單的培訓(xùn)，就可以上崗操縱。法蘭螺栓在鋼結(jié)構(gòu)運(yùn)輸過程中不易松動(dòng)，且在使用中減少維護(hù)工作量。假如發(fā)生松動(dòng)即可個(gè)別更換，不影響其四周螺栓的連接。法蘭螺栓施工勞動(dòng)條件好，而且栓孔可在工廠一次成型，省了二次擴(kuò)孔的工序。綜上所述，以上的信息則詳細(xì)的描述了，法蘭螺栓在應(yīng)用的時(shí)候，所具備的一些產(chǎn)品特點(diǎn)。一般螺栓防松且經(jīng)常拆用的是彈墊防松。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇螺栓求購(gòu),螺栓" src="https://tyunfile.71360.com/UploadFile/jinxunjingujian/637388103957215615/9911846.png"></div><p style="text-indent:25px">螺栓：一般沉頭用在要求連接后表面光滑沒突起的地方，因?yàn)槌令^可以擰到零件里。圓頭也可以擰進(jìn)零件里。方頭的擰緊力可以大些，但是尺寸很大。另外為了滿足安裝后鎖緊的需要，有頭部有孔的，桿部有孔的，這些孔可以使螺栓受振動(dòng)時(shí)不至松脫。有的螺栓沒螺紋的光桿要做細(xì)，叫細(xì)腰螺栓。這種螺栓有利于受變力的聯(lián)結(jié)。鋼結(jié)構(gòu)上有**的**度螺栓，頭部會(huì)做大些，尺寸也有變化。另外有特殊用處的：T形槽螺栓用，機(jī)床夾具上用的較多，形狀特殊，頭部?jī)蓚?cè)要切掉。地腳螺栓，用于機(jī)器和地面連接固定的，有很多種形狀。U形螺栓，如前述。等等。還有焊接用的**螺柱，一頭有螺紋一頭沒，可以焊在零件上，另一邊直接擰螺母。地腳螺栓通常使用Q235鋼制成，這種鋼材光滑且圓潤(rùn)。江蘇螺栓求購(gòu)</p><p style="text-indent:25px">螺栓材質(zhì)為低碳合金鋼或中碳鋼。江蘇螺栓求購(gòu)</p><p style="text-indent:25px">螺栓按螺紋長(zhǎng)度分為全螺紋和非全螺紋兩類。按螺紋的牙型分為粗牙和細(xì)牙兩類，粗牙型在螺栓的標(biāo)志中不顯示。螺栓按照性能等級(jí)分為3.6、4.8、5.6、6.8、8.8、9.8、10.9、12.9八個(gè)等級(jí)，其中8.8級(jí)以上(含8.8級(jí))螺栓材質(zhì)為低碳合金鋼或中碳鋼并經(jīng)熱處理(淬火+回火)，通稱**度螺栓，8.8級(jí)以下(不含8.8級(jí))通稱普通螺栓。普通螺栓按照制作精度可分為A、B、C三個(gè)等級(jí)，A、B級(jí)為精制螺栓，C級(jí)為粗制螺栓。對(duì)于鋼結(jié)構(gòu)用連接螺栓，除特別注明外，一般為普通粗制C級(jí)螺栓。江蘇螺栓求購(gòu)</p><p style="text-indent:25px">晉迅緊固件（上海）有限公司致力于五金、工具，是一家貿(mào)易型公司。公司業(yè)務(wù)涵蓋緊固件，熱鍍鋅，螺絲，螺母等，價(jià)格合理，品質(zhì)有保證。公司從事五金、工具多年，有著創(chuàng)新的設(shè)計(jì)、強(qiáng)大的技術(shù)，還有一批**的專業(yè)化的隊(duì)伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。晉迅緊固件憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來(lái)的聲譽(yù)和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2255403.html</p></div></div></div></div></div><div id="onp39og" class="page-right twoColRt"><div id="fzh8ct8" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="qu3a7fc" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="x8s3cjg" class="recomPic likePro"><a 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