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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="dxjgnp3" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/gxxfty0013/637389547992545302/9944589.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="fnumolf" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>廣西壯族自治區(qū)</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>九江螺栓廠家供應(yīng),螺栓</p><p><span>***更新：</span>2020-10-28 00:25:24</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="sw73qtf" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">柳州市華僑緊固件有限公司</a></p><p><span>聯(lián)系人：</span>唐忠玉</p><p><span>郵箱: </span>2282305088@qq.com</p><p><span>電話: </span>13907724831</p><p><span>傳真: </span>0772_</p><p><span>網(wǎng)址: </span>http://www.hqfastner.com</p><p><span>手機: </span>0772-7507381</p><p><span>地址: </span>廣西穿山鎮(zhèn)興泰路8號</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="ix2qc3d" class="page-proshow02"><p class="title">詳細說明</p><div id="2xxkcja" class="box"><p><p> 建筑結(jié)構(gòu)的主構(gòu)件的螺栓連接，一般均采用高強螺栓連接。普通螺栓可重復(fù)使用，高強螺栓不可重復(fù)使用。高強螺栓一般用于長久連接。 </p> <p> 高強螺栓是預(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，可在次要結(jié)構(gòu)部位使用。普通螺栓只需擰緊即可。 </p> <p> 普通螺栓一般為4.4級，九江螺栓廠家供應(yīng)、4.8級、5.6級和8.8級。高強螺栓一般為8.8級和10.9級，其中10.9級居多。 </p> <p> 8，九江螺栓廠家供應(yīng).8級與8.8S 是相同等級。普通螺栓與高強螺栓的受力性能與計算方法均有所區(qū)別的，九江螺栓廠家供應(yīng)。高強螺栓的受力首先是通過在其內(nèi)部施加預(yù)拉力P，然后在被連接件之間的接觸面上產(chǎn)生摩擦阻力來承受外荷載的，而普通螺栓則是直接承受外荷載的。 </p> <p> <br /> 螺栓和螺柱有什么區(qū)別？九江螺栓廠家供應(yīng)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="九江螺栓廠家供應(yīng),螺栓" src="https://tyunfile.71360.com/UploadFile/gxxfty0013/637389547992545302/9944589.jpg"></div><p> 高強螺栓所用材料的比較大抗拉強度與淬火處理有很大關(guān)系，40Cr淬火處理后一般較難達到10.9S級高強螺栓的材質(zhì)要求，在不是很嚴格的檢驗中，可以根據(jù)淬火處理后的表面硬度來判斷材料的比較大抗拉強度。除了處理工藝中的性能不同外，材質(zhì)不同的高強螺栓，其在高應(yīng)力狀態(tài)下的延遲性斷裂性能也是有所不同的。 </p> <p> 40Cr高強螺栓主要用于螺栓球節(jié)點網(wǎng)架中，其設(shè)計強度一般為390MPa(d>=30mm)或者430MPa（d<30mm)，使用中不存在很高的預(yù)拉應(yīng)力。當用于要施加很高預(yù)拉力的情況時，要注意了解和保證其延遲性斷裂性能。20MnTiB高強螺栓的延遲性斷裂性能好于40B的。臨沂螺栓哪家便宜螺栓的等級和螺栓的材質(zhì)有關(guān)嗎？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="九江螺栓廠家供應(yīng),螺栓" src="https://tyunfile.71360.com/UploadFile/gxxfty0013/637389547990523947/6192848.jpg"></div><p> 螺栓預(yù)緊力是在擰螺栓過程中擰緊力矩作用下的螺栓與被聯(lián)接件之間產(chǎn)生的沿螺栓軸心線方向的預(yù)緊力。對于一個特定的螺栓而言，其預(yù)緊力的大小與螺栓的擰緊力矩、螺栓與螺母之間的摩擦力、螺母與被聯(lián)接件之間的摩擦力相關(guān)。 </p> <p> <br /> </p> <p> 預(yù)緊力的大小，除了受限于螺釘材料的強度外，還受限于被聯(lián)接件的材料強度。當內(nèi)外螺紋的材料相同時，只校核外螺紋強度即可。對于旋合長度較短、非標準螺紋零件構(gòu)成的聯(lián)接、內(nèi)外螺紋材料的強度相差較大的受軸向載荷的螺紋聯(lián)接，還應(yīng)校核螺紋牙的強度。 </p> <p> <br /> </p> <p> 如某型產(chǎn)品彈性元件的固定，因螺釘連接的基材是壓鑄鋁合金YL113，其強度遠低于質(zhì)量碳素結(jié)構(gòu)鋼20的強度，就應(yīng)校核鋁合金上螺紋牙型的強度，主要是螺紋材料的剪應(yīng)力及彎應(yīng)力。 </p> <p> <br /> </p><p> 螺栓的分類有： </p> <p> <br /> </p> <p> 一、螺栓按連接的受力方式分：分普通的和有鉸制孔用的。 </p> <p> <br /> </p> <p> 二、螺栓按頭部形狀分：有六角頭的，圓頭的，方形頭的，沉頭的等等。 </p> <p> <br /> </p> <p> 三、螺紋按長度分為全螺紋和非全螺紋兩類。 </p> <p> <br /> </p> <p> 四、按螺紋的牙型分為粗牙和細牙兩類，粗牙型在螺栓的標志中不顯示。 </p> <p> <br /> </p> <p> 五、螺栓按照性能等級分為3.6、4.8、5.6、6.8、8.8、9.8、10.9、12.9八個等級，其中8.8級以上(含8.8級)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)，通稱高強度螺栓，8.8級以下(不含8.8級)通稱普通螺栓。 </p> <p> <br /> </p> <p> 六、普通螺栓按照制作精度可分為A、B、C三個等級，A、B級為精制螺栓，C級為粗制螺栓。 </p> <p> <br /> 螺栓和螺桿常用什么材料做成？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="九江螺栓廠家供應(yīng),螺栓" src="https://tyunfile.71360.com/UploadFile/gxxfty0013/637389547990631639/7706496.jpg"></div><p> 螺母即螺帽，二者為同一個物體，螺絲、螺栓、螺帽（螺母）三者的區(qū)別如下： </p> <p> <br /> </p> <p> 一、外觀不同 </p> <p> <br /> </p> <p> 1、螺絲：前端有尖頭的那種，螺距較大，斜面圓形旋轉(zhuǎn)體結(jié)構(gòu)。 </p> <p> <br /> </p> <p> 2、螺栓：配用螺母的圓柱形帶螺紋的緊固件，有六角頭的，圓頭的，方形頭的，沉頭的等等。 </p> <p> <br /> </p> <p> 3、螺帽（螺母）：一般為扁平中空的多面柱體結(jié)構(gòu)。 </p> <p> <br /> </p> <p> 二、作用不同 </p> <p> <br /> </p> <p> 1、螺絲：利用物體的斜面圓形旋轉(zhuǎn)和摩擦力的物理學(xué)和數(shù)學(xué)原理，循序漸進地緊固器物機件的工具。 </p> <p> <br /> </p> <p> 2、螺栓：機械零件，配用螺母的圓柱形帶螺紋的緊固件。由頭部和螺桿（帶有外螺紋的圓柱體）兩部分組成的一類緊固件，需與螺母配合，用于緊固連接兩個帶有通孔的零件。 </p> <p> <br /> </p> <p> 3、螺帽（螺母）：螺母（螺帽）是將機械設(shè)備緊密連接起來的零件，通過內(nèi)側(cè)的螺紋，同等規(guī)格螺母和螺栓才能連接在一起。 </p> <p> <br /> 地腳螺栓有什么用，它是怎么工作的？九江螺栓廠家供應(yīng)</p><p style="text-indent:25px">螺栓的符號表示有哪些？九江螺栓廠家供應(yīng)</p><p> 高強度螺栓的安裝順序： </p> <p> 一個接頭上的高強螺栓，應(yīng)從螺栓群中部開始安裝，逐個擰緊。初擰、專復(fù)擰、終擰都應(yīng)屬從螺栓群中部開始向四周擴展逐個擰緊，每擰一遍均應(yīng)用不同顏色的油漆做上標記，防止漏擰。 </p> <p> 接頭如有高強螺栓連接又有電焊連接時，是先緊固還是先焊接應(yīng)按設(shè)計要求規(guī)定的順序進行，設(shè)計無規(guī)定時，按先緊固后焊接（即先栓后焊）的施工工藝順序進行，先終擰完高強螺栓再焊接焊縫。 </p> <p> 高強螺栓的緊固順序從剛度大的部位向不受約束的自由端進行，同一節(jié)點內(nèi)從中間向四周，以使板間密貼。 </p> <p> <br /> 九江螺栓廠家供應(yīng)</p><p style="text-indent:25px">柳州市華僑緊固件有限公司發(fā)展規(guī)模團隊不斷壯大，現(xiàn)有一支專業(yè)技術(shù)團隊，各種專業(yè)設(shè)備齊全。在柳州華僑緊固件近多年發(fā)展歷史，公司旗下現(xiàn)有品牌華僑緊固件,華僑標準件,華僑螺絲,華僑螺栓等。公司以用心服務(wù)為重點價值，希望通過我們的專業(yè)水平和不懈努力，將高強度標準緊固件、高強度金屬絲制品、普通標準緊固件、普通金屬絲制品、五金機械、汽車配件、工程機械配件生產(chǎn)、銷售:金屬熱處理加工、道路貨物運輸服務(wù)、廠房租賃、機械設(shè)備租賃。(依法須經(jīng)批準的項目，經(jīng)相關(guān)部門批準后方可開展經(jīng)營活動。)等業(yè)務(wù)進行到底。誠實、守信是對企業(yè)的經(jīng)營要求，也是我們做人的基本準則。公司致力于打造高品質(zhì)的緊固件，螺栓，標準件，螺絲。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1734479.html</p></div></div></div></div></div><div id="mb8q77p" class="page-right twoColRt"><div id="wb873q9" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ocmyaxz" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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