u型螺釘 **** 晉迅緊固件供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="六角頭螺栓分外六角螺栓（GB5782/GB5783/DIN931/ISO4014/ISO4017）和內(nèi)六角螺栓(DIN912/ISO4762/GB70)，是常用的緊固件，u型螺釘，u型螺釘，主要用作機(jī)械設(shè)備的緊固。無論是外六角還是內(nèi)六角，它"><meta name="keywords" content="u型螺釘,螺栓"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta 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</span><div id="2dskcol" class="searchbox"><div id="uixlceb" class="searchLt"><div id="eyqif88" class="tabs"><a href="JavaScript:;" data-type="product" class="active">產(chǎn)品</a><a href="JavaScript:;" data-type="member" class="">公司</a><a href="JavaScript:;" data-type="article" class="">資訊</a><a href="JavaScript:;" data-type="exhibition" class="">展會(huì)</a></div><div id="zt8wshj" class="clearfix searchWrap"><div id="72wgif8" class="searchInput"><input type="text" name="keywords" placeholder="請(qǐng)輸入搜索關(guān)鍵詞" id="kd"><a href="javascript:void(0)" class="searchBtn" id="search">搜索</a></div></div></div></div></header><nav class="navbox"><div id="wvhelnm" class="container"><ul><li id = "index_index"><a href="http://www.cdcfah.com/"><span>首頁</span></a></li><li id = "index_company"><a ><span>企業(yè)名錄</span></a></li><li id = "index_product"><a href="http://www.cdcfah.com/cp/"><span>產(chǎn)品供應(yīng)</span></a></li><li id = "index_news"><a 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src="https://tyunfile.71360.com/UploadFile/jinxunjingujian/637388104096492618/7369776.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="jjobo2c" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/jinxunjingujian/637388104096492618/7369776.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="u8jgnzg" 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>u型螺釘,螺栓</p><p><span>***更新：</span>2020-12-28 03:18:31</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="8mjbdk3" 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="ofby3c7" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="sm8xykm" class="box"><p><p style="text-indent:25px">六角頭螺栓分外六角螺栓（GB5782/GB5783/DIN931/ISO4014/ISO4017）和內(nèi)六角螺栓(DIN912/ISO4762/GB70)，是常用的緊固件，u型螺釘，u型螺釘，主要用作機(jī)械設(shè)備的緊固。無論是外六角還是內(nèi)六角，它們的規(guī)格尺寸表示方法都是類似的。外六角螺栓國家標(biāo)準(zhǔn)GB/T5782-86，這個(gè)標(biāo)準(zhǔn)規(guī)定了螺紋規(guī)格為M3~M64，A和B級(jí)的六角頭螺栓，A級(jí)用于D<=24和L<=10D或L。六角頭螺栓產(chǎn)品等級(jí)分為A、B、C三級(jí)，表示精度，其中A級(jí)較精確，C級(jí)精度較差。精度不同，作用的地方也不同，u型螺釘，A級(jí)比B級(jí)高，要求高的地方用A級(jí)，大多數(shù)都選用B級(jí)。A級(jí)用于承載較大，要求精度高或受沖擊、振動(dòng)載荷的場(chǎng)合。有的螺栓沒螺紋的光桿要做細(xì)，叫細(xì)腰螺栓。u型螺釘</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="u型螺釘,螺栓" src="https://tyunfile.71360.com/UploadFile/jinxunjingujian/637388104096492618/7369776.png"></div><p style="text-indent:25px">法蘭螺栓(DIN6921/GB5787)的緊固辦法：無扭矩梅花扳手或錘形扳手適用于一般設(shè)備和管道法蘭的緊固，依據(jù)螺栓尺度和法蘭壓力等級(jí)選用。緊固要求如下：1）修理單位應(yīng)擬定緊固計(jì)劃，對(duì)稱緊固法蘭，并編號(hào)緊固次序。2）用4個(gè)螺栓將墊圈定位在方位1、2、3和4，以保證環(huán)繞式墊圈的中心坐落法蘭邊際內(nèi)。3）用手緊固定位螺栓，然后刺進(jìn)其他雙頭螺栓并用手?jǐn)Q緊，以平衡負(fù)載，并保證螺母每端至少顯露2個(gè)螺紋。4）依據(jù)現(xiàn)場(chǎng)設(shè)備和法蘭，每圈扣件一次核算，合理確認(rèn)扣件的扣件次數(shù)（不少于3次）和沖擊載荷（強(qiáng)度）。扣件的沖擊載荷（強(qiáng)度）從小到大。不要加載太快或太大，以防止墊圈密封失效。5）無扭矩梅花扳手或錘形扳手?jǐn)Q緊次序：將兩個(gè)直徑相對(duì)的螺栓擰緊至螺栓的預(yù)訂錘擊載荷（強(qiáng)度）；將另一對(duì)螺栓與前兩個(gè)螺栓的圓周間隔固定在90度左右；持續(xù)擰緊，直到一切剩下的螺栓擰緊到給定的錘擊載荷。6）終究，按錘擊載荷（強(qiáng)度）順時(shí)針或逆時(shí)針擰緊一切螺栓。u型螺釘螺栓疲勞強(qiáng)度實(shí)驗(yàn)中需反復(fù)振動(dòng)一百萬次。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="u型螺釘,螺栓" src="https://tyunfile.71360.com/UploadFile/jinxunjingujian/637388103977810875/6719938.png"></div><p style="text-indent:25px">螺栓主要用于連接機(jī)械的固定連桿功能。螺栓兩端有螺紋，中間的螺釘又厚又薄。粗的稱為粗桿或A型，薄的稱為細(xì)桿或B型。一般用于礦山機(jī)械、橋梁、汽車、摩托車、鍋爐、鋼結(jié)構(gòu)、吊塔、大跨度鋼結(jié)構(gòu)和大型建筑物。主要用于連接厚度過大而不能使用螺栓或因頻繁拆裝而不宜使用螺栓的零件。通常螺栓的一端擰入螺孔，另一端用螺母連接。等長(zhǎng)螺栓兩端均配有螺母。當(dāng)主體是大型設(shè)備時(shí)，需要安裝附件，如鏡子、機(jī)械密封座、減速器框架等。這是使用的螺栓。一端擰入主體，另一端在附件安裝后安裝螺母。由于附件經(jīng)常被拆下，螺紋會(huì)磨損或損壞，因此更換螺栓非常方便。<span style="display:none;"></span></p><p style="text-indent:25px">高強(qiáng)度的螺栓與普通螺栓的區(qū)別如下：1.從原材料看，高強(qiáng)度螺栓采用高強(qiáng)度材料制造。高強(qiáng)螺栓的螺桿、螺帽和墊圈都由高強(qiáng)鋼材制作，常用 45號(hào)鋼、40硼鋼、20錳鈦硼鋼。普通螺栓常用Q235鋼制造。2.從強(qiáng)度等級(jí)上看，高強(qiáng)螺栓，使用日益普遍。常用8.8和10.9兩個(gè)強(qiáng)度等級(jí)，其中10.9級(jí)居多。普通螺栓強(qiáng)度等級(jí)要低，一般為4.4級(jí)、4.8級(jí)、5.6級(jí)和8.8級(jí)。3.從受力特點(diǎn)來看，普通螺栓連接靠栓桿抗剪和孔壁承壓來傳遞剪力，而高強(qiáng)螺栓除了其材料強(qiáng)度很高之外，還給螺栓施加很大預(yù)拉力，使連接構(gòu)件間產(chǎn)生擠壓力，從而使垂直于螺桿方向有很大摩擦力。螺栓按螺紋的牙型分為粗牙和細(xì)牙兩類。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="u型螺釘,螺栓" src="https://tyunfile.71360.com/UploadFile/jinxunjingujian/637388104043435830/6960273.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），通稱為高強(qiáng)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。活動(dòng)地腳螺栓適用于有強(qiáng)烈振動(dòng)和沖擊的重型設(shè)備。u型螺釘</p><p style="text-indent:25px">螺栓連接是屬于可拆卸連接。u型螺釘</p><p style="text-indent:25px">螺栓：螺桿未達(dá)到預(yù)調(diào)溫度時(shí)，切勿啟動(dòng)機(jī)器。防止金屬碎片及雜物落入料斗，若加工回收料，便需加上磁性料斗以防止鐵屑等進(jìn)入料筒。使用防涎時(shí)要確定料筒內(nèi)塑料完全熔融，以免螺桿后退時(shí)損壞傳動(dòng)系統(tǒng)零件。使用新塑料時(shí)，應(yīng)把螺桿的余料清洗干凈。當(dāng)熔融塑料溫度正常但又不斷發(fā)現(xiàn)熔融塑料出現(xiàn)黑點(diǎn)或變色時(shí)，應(yīng)檢查膠螺.在加工時(shí)，盡量使物料塑化均勻，不要讓金屬異物混入料中，減少螺桿轉(zhuǎn)動(dòng)扭矩力按連接的受力方式分：分普通的和有鉸制孔用的。按頭部形狀分：有六角頭的，圓頭的，方形頭的，沉頭的等等。其中六角頭是較常用的。一般沉頭用在要求連接的地方。u型螺釘</p><p style="text-indent:25px">晉迅緊固件（上海）有限公司是一家貿(mào)易型類企業(yè)，積極探索行業(yè)發(fā)展，努力實(shí)現(xiàn)產(chǎn)品創(chuàng)新。是一家有限責(zé)任公司（自然）企業(yè)，隨著市場(chǎng)的發(fā)展和生產(chǎn)的需求，與多家企業(yè)合作研究，在原有產(chǎn)品的基礎(chǔ)上經(jīng)過不斷改進(jìn)，追求新型，在強(qiáng)化內(nèi)部管理，完善結(jié)構(gòu)調(diào)整的同時(shí)，良好的質(zhì)量、合理的價(jià)格、完善的服務(wù)，在業(yè)界受到寬泛好評(píng)。公司擁有專業(yè)的技術(shù)團(tuán)隊(duì)，具有緊固件，熱鍍鋅，螺絲，螺母等多項(xiàng)業(yè)務(wù)。晉迅緊固件順應(yīng)時(shí)代發(fā)展和市場(chǎng)需求，通過高端技術(shù)，力圖保證高規(guī)格高質(zhì)量的緊固件，熱鍍鋅，螺絲，螺母。</p></p><br /><p>文章來源地址: 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