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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="zopf2pl" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/mfq123/637280074303623047/5027911.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="qla2o47" 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>耐磨精密拉伸五金件工廠,精密拉伸五金件</p><p><span>***更新：</span>2020-09-16 07:06:35</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="apvu7jc" 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: </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] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="5xgi5ph" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="qr3qt81" class="box"><p><p style="text-indent:25px">丘形拉伸加工：丘形蓋板件在成形過程中的坯件變形不是簡單的拉伸變形，而是拉伸和脹形變形同時(shí)存在的復(fù)合成形。壓料面上坯件的變形為拉伸變形(徑向?yàn)槔瓚?yīng)力，切向?yàn)閴簯?yīng)力)，而輪廓內(nèi)部(特別是中心區(qū)域)坯件的變形為脹形變形(徑向和切向均為拉應(yīng)力)，耐磨精密拉伸五金件工廠。帶凸緣半球形拉伸加工：球形件拉伸時(shí)，毛坯與凸模的球形頂部局部接觸，耐磨精密拉伸五金件工廠，其余大部分處于懸空的不受約束的自由狀態(tài)。因此，耐磨精密拉伸五金件工廠，此類球面零件拉伸的主要工藝問題在于局部接觸部分的嚴(yán)重變薄，或曲面部分的失穩(wěn)起皺。誘發(fā)馬氏體相含量增高，引發(fā)殘余的應(yīng)力越大，在沖壓過程中便容易開裂。耐磨精密拉伸五金件工廠</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="耐磨精密拉伸五金件工廠,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074303623047/5027911.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，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。耐磨精密拉伸五金件工廠一次拉伸的特點(diǎn)是一次成型，可以提高生產(chǎn)效率。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="耐磨精密拉伸五金件工廠,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074217617188/3733191.png"></div><p style="text-indent:25px">錐形拉伸加工（Taper drawing）：h/d>0.8、α =10°～30°的深錐形件，由于深度較大，坯料的變形程度較大，*靠坯料與凸模接觸的局部面積傳遞成形力，極易引起坯料局部過度變薄乃至破裂，需要經(jīng)過多次過渡逐漸成形。階梯拉伸法是首先將坯料拉伸成階梯形過渡件，其階梯外形與錐形部的內(nèi)形相切，***脹形成錐形。階梯過渡件的拉伸次數(shù)、工藝等與階梯圓筒件的拉伸相同。反向拉伸加工（Reverse drawing）：將前工序拉伸加工的工件，進(jìn)行反向拉伸，是再拉伸的一種。反向拉伸法可增加徑向拉應(yīng)力，對(duì)于防止起皺可收到較好效果。也有可能提高再拉伸的拉伸系數(shù)。</p><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)生白銹的問題，而使用億達(dá)渤潤硫型拉伸油可以避免生銹問題不銹鋼是容易產(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、延長設(shè)備的使用壽命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)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="耐磨精密拉伸五金件工廠,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074239697266/6761125.png"></div><p style="text-indent:25px">曲面成形加工：曲面拉伸成形，使金屬平板坯料外法蘭部分縮小，內(nèi)法蘭部分伸長，成為非直壁非平底的曲面形狀的空心產(chǎn)品的沖壓成形方法。臺(tái)階拉伸加工：將左側(cè)初拉伸產(chǎn)品進(jìn)行再拉伸加工，成形為右側(cè)的臺(tái)階形底部。深度較深的部分在拉伸成形的初期就產(chǎn)生變形，深度較淺的部分在拉伸的后期產(chǎn)生變形。在臺(tái)階變化部分的側(cè)壁易誘發(fā)切應(yīng)力產(chǎn)生變形。反向拉伸加工：將前工序拉伸加工的工件，進(jìn)行反向拉伸，是再拉伸的一種。反向拉伸法可增加徑向拉應(yīng)力，對(duì)于防止起皺可收到較好效果。也有可能提高再拉伸的拉伸系數(shù)。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。耐磨精密拉伸五金件工廠</p><p style="text-indent:25px">多次拉伸可以拉的更加勻稱，降低工件的不良率。耐磨精密拉伸五金件工廠</p><p> 五金沖壓件拉伸作為主要的沖壓工序之一，應(yīng)用非常***。用拉伸工藝可以制成各種圓筒形、矩形、階梯形、球形、錐形、拋物線形及其他不規(guī)則形狀的薄壁零件。 </p> <p> <br /> </p> <p> 帶凸緣半球形拉伸加工：球形件拉伸時(shí)，毛坯與凸模的球形頂部局部接觸，其余大部分處于懸空的不受約束的自由狀態(tài)。因此，此類球面零件拉伸的主要工藝問題在于局部接觸部分的嚴(yán)重變薄，或曲面部分的失穩(wěn)起皺。 </p> <p> <br /> </p> <p> 法蘭盤拉伸加工：將拉伸產(chǎn)品的法蘭盤部分進(jìn)行淺拉伸的加工。其應(yīng)力應(yīng)變情況類似于壓縮翻邊。由于切向受壓應(yīng)力，容易起皺，故成形極限主要受壓縮起皺的限制。 </p> <p> <br /> 耐磨精密拉伸五金件工廠</p><p style="text-indent:25px">深圳市銘豐慶五金制品有限公司位于深圳市龍崗區(qū)平湖街道辦新木社區(qū)居委會(huì)老村路24號(hào)。銘豐慶五金制品致力于為客戶提供良好的五金沖壓，精密彈簧，精密五金模具，眼鏡配件，一切以用戶需求為中心，深受廣大客戶的歡迎。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**的專業(yè)化的隊(duì)伍，確保為客戶提供良好的產(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)，為客戶成功提供堅(jiān)實(shí)有力的支持。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1299878.html</p></div></div></div></div></div><div id="8baewo6" class="page-right twoColRt"><div id="yo8voyw" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="soyj21t" 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="bn481il" class="recomPic 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