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銘豐慶五金制品供應(yīng)</p><div id="vugn78v" class="leftbox clearfix"><h1>南山?jīng)_壓精密拉伸五金件哪里買(mǎi) 銘豐慶五金制品供應(yīng)</h1><div id="8hl3heg" class="proBig"><div id="azbdkg2" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/mfq123/637280074021494141/8351680.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ha3qxed" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/mfq123/637280074021494141/8351680.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="h7luw3k" 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>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>南山?jīng)_壓精密拉伸五金件哪里買(mǎi),精密拉伸五金件</p><p><span>***更新：</span>2020-09-08 05:14:48</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="283lrlm" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市銘豐慶五金制品有限公司</a></p><p><span>聯(lián)系人：</span>劉自成</p><p><span>郵箱: </span>657179543@qq.com</p><p><span>電話(huà): </span>13602685781</p><p><span>傳真: </span>0755_84693444</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0755-84006255</p><p><span>地址: </span>深圳市龍崗區(qū)平湖街道辦新木社區(qū)居委會(huì)老村路24號(hào)</p><p>[當(dāng)前離線(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="7s77szb" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="ra7784n" class="box"><p><p> 拉伸件成型沖壓加工是禾聚精密的六大技術(shù)之一，技術(shù)特點(diǎn)：拉伸公差可達(dá)±0.015mm、外觀(guān)無(wú)瑕疵、可做到R/T＜1.0。拉伸件應(yīng)用于機(jī)械、電子、電器、儀表、汽車(chē)，南山?jīng)_壓精密拉伸五金件哪里買(mǎi)、航空、**產(chǎn)品。 </p> <p> <br /> </p> <p> 在拉伸件拉伸成型工藝中，有一次拉伸成型和多次拉伸成型。一次拉伸的特點(diǎn)是一次成型，可以提高生產(chǎn)效率，缺點(diǎn)是一次成型容易不到位，而且每次拉伸的變化程度是有要求的，不能變化太大。 </p> <p> <br /> </p> <p> 多次拉伸可以提高產(chǎn)品的合格率，不容易產(chǎn)生廢品，多次拉伸的中間去應(yīng)力，退火軟化。多次拉伸可以確保工件的精度，延伸系數(shù)以及生產(chǎn)效率都得到很大程度的提高，南山?jīng)_壓精密拉伸五金件哪里買(mǎi)。多次拉伸可以拉的更加勻稱(chēng)，降低工件的不良率。 </p> <p> <br /> 拉伸件應(yīng)用于機(jī)械，南山?jīng)_壓精密拉伸五金件哪里買(mǎi)、電子、電器、儀表、汽車(chē)、航空、**產(chǎn)品。南山?jīng)_壓精密拉伸五金件哪里買(mǎi)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南山?jīng)_壓精密拉伸五金件哪里買(mǎi),精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074021494141/8351680.png"></div><p style="text-indent:25px">1、圓筒拉伸加工：帶凸緣(法蘭)圓筒產(chǎn)品的拉伸。法蘭與底部均為平面形狀，圓筒側(cè)壁為軸對(duì)稱(chēng)，在同一圓周上變形均勻分布，法蘭上毛坯產(chǎn)生拉深變形。 2、橢圓拉伸加工：法蘭上毛坯的變形為拉伸變形，但變形量與變形比沿輪廓形狀相應(yīng)變化。曲率越大的部分，毛坯的塑性變形量就越大;反之，曲率越小的部分，毛坯的塑性變形越小。3、矩形拉伸加工：一次拉伸成形的低矩形件。拉伸時(shí)，凸緣變形區(qū)圓角處的拉伸阻力大于直邊處的拉伸阻力，圓角處的變形程度大于直邊處的變形程度。4、山形拉伸加工：沖壓件的側(cè)壁為斜面時(shí)，側(cè)壁在沖壓過(guò)程中是懸空的，不貼模，直到成形結(jié)束時(shí)才貼模。成形時(shí)側(cè)壁的不同部位變形特點(diǎn)不完全相同。南山耐磨精密拉伸五金件的用途和特點(diǎn)多次拉伸可以拉的更加勻稱(chēng)，降低工件的不良率。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南山?jīng)_壓精密拉伸五金件哪里買(mǎi),精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074118720704/923197.png"></div><p style="text-indent:25px">帶凸緣（法蘭）圓筒產(chǎn)品的拉伸。法蘭與底部均為平面形狀，圓筒側(cè)壁為軸對(duì)稱(chēng)，在同一圓周上變形均勻分布，法蘭上毛坯產(chǎn)生拉深變形，法蘭上毛坯的變形為拉伸變形，但變形量與變形比沿輪廓形狀相應(yīng)變化。曲率越大的部分，毛坯的塑性變形量就越大；反之，曲率越小的部分，毛坯的塑性變形越小一次拉伸成形的低矩形件。拉伸時(shí)，凸緣變形區(qū)圓角處的拉伸阻力大于直邊處的拉伸阻力，圓角處的變形程度大于直邊處的變形程度，沖壓件的側(cè)壁為斜面時(shí)，側(cè)壁在沖壓過(guò)程中是懸空的，不貼模，直到成形結(jié)束時(shí)才貼模。成形時(shí)側(cè)壁的不同部位變形特點(diǎn)不完全相同。</p><p> 沖壓拉伸加工中為什么要用塑性好的金屬材料？這取決于塑性材料的拉伸變形量。例如同等的拉伸高度，如果選擇塑性比較差的金屬材料，就需要用更多的拉伸步距或中途退火。 </p> <p> <br /> </p> <p> 選擇拉伸材料中，要注意屈服點(diǎn)、抗拉強(qiáng)度的比值越小，拉深性能越好，一次變形的極限程度越大越有利于降低成本以及保證拉伸的質(zhì)量。不銹鋼拉伸是拉伸工藝中經(jīng)常見(jiàn)到的，很多拉伸件經(jīng)常用到不銹鋼。但由于不銹鋼的延展率比較小，彈性模量也比較大，硬化**比較高。拉伸時(shí)會(huì)出現(xiàn)開(kāi)裂有時(shí)會(huì)出現(xiàn)拉伸變形后；有時(shí)會(huì)在拉伸件由凹模內(nèi)退出的時(shí)候發(fā)生；有時(shí)在拉伸變形后受到撞擊或者振動(dòng)時(shí)才出現(xiàn)；有時(shí)在拉伸變形后經(jīng)過(guò)一段時(shí)間的存放或者使用中出現(xiàn)開(kāi)裂。 </p> <p> <br /> 鋁酸鹽水泥涂層或***鹽水泥涂層。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南山?jīng)_壓精密拉伸五金件哪里買(mǎi),精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074053916016/1058647.png"></div><p style="text-indent:25px">碳鋼板在選用拉伸油時(shí)首先應(yīng)該注意的是拉伸油的粘度。根據(jù)工藝難易度和脫脂條件來(lái)決定較佳粘度因?yàn)楹吐认堤砑觿?huì)發(fā)生化學(xué)反應(yīng)，所以鍍鋅鋼板在選用拉伸油時(shí)應(yīng)注意氯型沖壓油可能發(fā)生白銹的問(wèn)題，而使用億達(dá)渤潤(rùn)硫型拉伸油可以避免生銹問(wèn)題不銹鋼是容易產(chǎn)生硬化的材料，要求使用油膜強(qiáng)度高、抗燒結(jié)性好的拉伸油。一般使用含有硫氯復(fù)合型添加劑的拉伸油，在保證極壓性能的同時(shí)避免工件出現(xiàn)毛刺、破裂等問(wèn)題自主研發(fā)的拉伸油系列產(chǎn)品具有優(yōu)異的極壓抗磨性能，能有效的保護(hù)沖模、大幅度提高生產(chǎn)效率、延長(zhǎng)設(shè)備的使用壽命誘發(fā)馬氏體相含量增高，引發(fā)殘余的應(yīng)力越大，在沖壓過(guò)程中便容易開(kāi)裂。南山耐磨精密拉伸五金件的用途和特點(diǎn)</p><p style="text-indent:25px">在塑性變形中，隨著變形量的增加。南山?jīng)_壓精密拉伸五金件哪里買(mǎi)</p><p> 精密拉伸沖壓中，鋁合金拉伸件是比較難加工的，但是在加工中注意某些問(wèn)題點(diǎn)就可以很順利的完成加工了。 </p> <p> </p> <p> 鋁合金拉伸件加工注意事項(xiàng)有：在取料、移動(dòng)、拉伸中材料不能相互碰擦，堆疊以及纏繞等，相互之間要留有一定的空隙。對(duì)容易折彎、出料長(zhǎng)短的鋁合金材料要及時(shí)處理。 </p> <p> </p> <p> 原材料要冷卻到50°以下才能移到拉伸架上進(jìn)行拉伸加工，溫度過(guò)高會(huì)燙到作業(yè)員和燙壞坯毛條，也不能徹底的消除材料內(nèi)應(yīng)力從而產(chǎn)生廢品。 </p> <p> <br /> </p> <p> 由于毛條有阻熱效果，裝飾外表需求高的鋁合金材料要多翻轉(zhuǎn)，便于散熱均勻，從而減少橫向亮斑。 </p> <p> <br /> </p> <p> 要注意寬厚比較高，弧度大、壁厚細(xì)、形狀奇怪等鋁合金材料的小腳、薄齒、長(zhǎng)腿、圓弧面、傾斜面、開(kāi)口、視點(diǎn)等受力情況，避免材料部分或者點(diǎn)狀尺度變形、扭曲、螺旋等。 </p> <p> <br /> </p> <p> 拉伸量要控制在百分之一的擺布，沖壓過(guò)程中需根據(jù)原材料的出料實(shí)際情況與各種具體需求加以調(diào)整。在相互對(duì)立的技能需求中尋找滿(mǎn)足各種具體需求的拉伸量。 </p> <p> <br /> 南山?jīng)_壓精密拉伸五金件哪里買(mǎi)</p><p style="text-indent:25px">深圳市銘豐慶五金制品有限公司致力于五金、工具，是一家生產(chǎn)型公司。銘豐慶五金制品致力于為客戶(hù)提供良好的五金沖壓，精密彈簧，精密五金模具，眼鏡配件，一切以用戶(hù)需求為中心，深受廣大客戶(hù)的歡迎。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(zhuān)業(yè)化的隊(duì)伍，確保為客戶(hù)提供良好的產(chǎn)品及服務(wù)。在社會(huì)各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗(yàn)，為客戶(hù)成功提供堅(jiān)實(shí)有力的支持。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/1199299.html</p></div></div></div></div></div><div id="q8mtfhe" class="page-right twoColRt"><div id="pebdpws" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8uy2f8l" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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