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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="y8s2nf4" 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="j22bah9" 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>汕頭耐磨精密拉伸五金件,精密拉伸五金件</p><p><span>***更新：</span>2020-10-14 09:11:33</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="tikm4bv" 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: </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)居委會老村路24號</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="lvi8yfu" class="page-proshow02"><p class="title">詳細說明</p><div id="uela4zt" class="box"><p><p style="text-indent:25px">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，汕頭耐磨精密拉伸五金件，而是拉伸和脹形變形同時存在的復(fù)合成形。壓料面上坯件的變形為拉伸變形（徑向為拉應(yīng)力，切向為壓應(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）球形件拉伸時，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重變薄，或曲面部分的失穩(wěn)起皺將拉伸產(chǎn)品的法蘭盤部分進行淺拉伸的加工。其應(yīng)力應(yīng)變情況類似于壓縮翻邊，汕頭耐磨精密拉伸五金件，汕頭耐磨精密拉伸五金件。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。缺點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。汕頭耐磨精密拉伸五金件</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="汕頭耐磨精密拉伸五金件,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074303623047/5027911.png"></div><p> 我們都知道拉伸是主要的沖壓工序之一，其應(yīng)用***。用拉伸工藝可以制成圓筒形、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。接下來，小編就為您介紹下五金沖壓拉伸成型加工工藝。 </p> <p> <br /> </p> <p> 1、拉伸加工：使用壓板裝置，利用凸模的沖壓力，將平板材的一部分或者全部拉入凹模型腔內(nèi)，使之成形為帶底的容器。容器的側(cè)壁與拉伸方向平行的加工，是單純的拉伸加工，而對圓錐(或角錐)形容器、半球形容器及拋物線面容器等的拉伸加工，其中還包含擴形加工。 </p> <p> <br /> </p> <p> 2、再拉伸加工：即對一次拉伸加工無法完成的深拉伸產(chǎn)品，需要將拉伸加工的成形產(chǎn)品進行再次拉伸，以增加成形容器的深度。 </p> <p> <br /> </p> <p> <br /> 福田防腐精密拉伸五金件的用途和特點鋁合金拉伸件加工注意事項有：在取料、移動、拉伸中材料不能相互碰擦。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="汕頭耐磨精密拉伸五金件,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074327705079/4833510.png"></div><p style="text-indent:25px">與普通拉伸不同，變薄拉伸主要是在拉伸過程中改變拉伸件筒壁的厚度。凸凹模之間的間隙小于毛坯厚度，毛坯直壁部分在通過間隙時，處于較大的均勻壓應(yīng)力之下，拉伸過程中壁厚變薄的同時，消除容器壁厚偏差，增加容器表面的光滑度，提高精度和強度面板產(chǎn)品是板材沖壓件，表面形狀復(fù)雜。在拉伸工序中，毛坯變形復(fù)雜，其成形性質(zhì)已非簡單的拉伸成形，而是拉深與脹形同時存在的復(fù)合成形五金沖壓拉伸成型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 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。臺階拉伸加工：將左側(cè)初拉伸產(chǎn)品進行再拉伸加工，成形為右側(cè)的臺階形底部。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)。鋁合金拉伸件具有優(yōu)良的導(dǎo)電性、導(dǎo)熱性和抗蝕性。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="汕頭耐磨精密拉伸五金件,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074217617188/3733191.png"></div><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題點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有：在取料、移動、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。對容易折彎、出料長短的鋁合金材料要及時處理。 </p> <p> </p> <p> 原材料要冷卻到50°以下才能移到拉伸架上進行拉伸加工，溫度過高會燙到作業(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、形狀奇怪等鋁合金材料的小腳、薄齒、長腿、圓弧面、傾斜面、開口、視點等受力情況，避免材料部分或者點狀尺度變形、扭曲、螺旋等。 </p> <p> <br /> </p> <p> 拉伸量要控制在百分之一的擺布，沖壓過程中需根據(jù)原材料的出料實際情況與各種具體需求加以調(diào)整。在相互對立的技能需求中尋找滿足各種具體需求的拉伸量。 </p> <p> <br /> 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。羅湖防腐精密拉伸五金件模具</p><p style="text-indent:25px">薄齒、長腿、圓弧面、傾斜面、開口、視點等受力情況，避免材料部分或者點狀尺度變形、扭曲、螺旋等。汕頭耐磨精密拉伸五金件</p><p style="text-indent:25px">碳鋼板在選用拉伸油時首先應(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為和氯系添加劑會發(fā)生化學(xué)反應(yīng)，所以鍍鋅鋼板在選用拉伸油時應(yīng)注意氯型沖壓油可能發(fā)生白銹的問題，而使用億達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，能有效的保護沖模、大幅度提高生產(chǎn)效率、延長設(shè)備的使用壽命汕頭耐磨精密拉伸五金件</p><p style="text-indent:25px">深圳市銘豐慶五金制品有限公司主要經(jīng)營范圍是五金、工具，擁有一支專業(yè)技術(shù)團隊和良好的市場口碑。公司業(yè)務(wù)涵蓋五金沖壓，精密彈簧，精密五金模具，眼鏡配件等，價格合理，品質(zhì)有保證。公司秉持誠信為本的經(jīng)營理念，在五金、工具深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為重點，發(fā)揮人才優(yōu)勢，打造五金、工具良好品牌。在社會各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗，為客戶成功提供堅實有力的支持。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1549401.html</p></div></div></div></div></div><div id="fpwtne4" class="page-right twoColRt"><div id="j8jy4cv" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="7axzjfe" 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配件哪家強信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="xmogqmg" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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