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class="pic"><img src="https://tyunfile.71360.com/UploadFile/mfq123/637280074274453125/5442382.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="5lzgxbq" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/mfq123/637280074274453125/5442382.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ucnjaqh" 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>羅湖精密拉伸五金件哪里好,精密拉伸五金件</p><p><span>***更新：</span>2020-08-19 21:24:17</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="4stzagh" 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="kdu7n7h" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="rueql7f" class="box"><p><p style="text-indent:25px">矩形拉伸加工一次拉伸成形的低矩形件。拉伸時(shí)，羅湖精密拉伸五金件哪里好，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)不完全相同丘形蓋板件在成形過(guò)程中的坯件變形不是簡(jiǎn)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，羅湖精密拉伸五金件哪里好。壓料面上坯件的變形為拉伸變形(徑向?yàn)槔瓚?yīng)力，羅湖精密拉伸五金件哪里好，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)。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。羅湖精密拉伸五金件哪里好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="羅湖精密拉伸五金件哪里好,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074274453125/5442382.png"></div><p style="text-indent:25px">圓筒拉伸加工（Round drawing）：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)生拉深變形橢圓拉伸加工（Ellipse drawing）：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矩形拉伸加工（Rectangular drawing）：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。羅湖精密拉伸五金件哪里好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><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="羅湖精密拉伸五金件哪里好,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074188476563/7643580.png"></div><p> 對(duì)前工序拉伸產(chǎn)品的凸緣部進(jìn)行角形再拉伸加工，此種加工要求材料具有良好的塑性，拉伸計(jì)算系數(shù) </p> <p> <br /> </p> <p> 拉伸系數(shù)非常重要，一個(gè)拉伸件需要分幾步拉伸才能保證不出現(xiàn)開(kāi)裂、起皺等問(wèn)題都需要用拉伸系數(shù)公式進(jìn)行計(jì)算。是拉伸工藝核算中的首要工藝參數(shù)之一，一般用它來(lái)決議拉伸的次序和次數(shù)。 </p> <p> <br /> </p> <p> 但是，拉伸系數(shù)也不是固定不變的。影響拉伸系數(shù)m的因素比較多，其中包括：材料型號(hào)、厚度、拉伸結(jié)構(gòu)類(lèi)型、拉伸次數(shù)、拉伸速度、拉伸鑲件圓弧過(guò)度大小等等。不過(guò)，一般都可以查表進(jìn)行大概計(jì)算。 </p> <p> <br /> </p><p style="text-indent:25px">精密拉伸件就必須保證潤(rùn)滑劑能***的發(fā)揮作用應(yīng)力要小，精密度才能保持在0.03mm內(nèi)。精密拉伸件根據(jù)材料的不同，潤(rùn)滑劑可以選擇的種類(lèi)不一樣，比較軟的材料如紫銅，可以硬脂酸鋅與動(dòng)物油配成的潤(rùn)滑劑，精密拉伸件材料是鐵低碳鋼以前都用磷化皂化工藝在材料表面附上一層潤(rùn)滑劑效果非常好，但現(xiàn)在因?yàn)榄h(huán)境問(wèn)題都改配方了，有的用硫化豬油和硫化脂肪酸酯為主劑調(diào)和而成，據(jù)說(shuō)效果也還不錯(cuò)。精密拉伸件材料是鋁材質(zhì)的，有人用柴油加一點(diǎn)汽油做潤(rùn)滑劑也能達(dá)到好好的效果。總之精密拉伸件一定要根據(jù)不同的金屬材質(zhì)配方不同的潤(rùn)滑劑生產(chǎn)，千萬(wàn)不要以為潤(rùn)滑劑越濃越好，好的潤(rùn)滑劑表現(xiàn)是與金屬材料表面結(jié)合的緊但又容易清洗掉，所以精密拉伸件的潤(rùn)滑劑是每個(gè)金屬加工廠都絞盡腦汁配方體驗(yàn)而不輕易示人的東西。瀝青漆涂層，噴漆前對(duì)沖壓拉伸件進(jìn)行預(yù)熱可以提高瀝青漆的附著力，加速干燥。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="羅湖精密拉伸五金件哪里好,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074053916016/1058647.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。奧氏體不銹鋼的冷作硬化**高；汕頭耐磨精密拉伸五金件的用途和特點(diǎn)</p><p style="text-indent:25px">奧氏體不銹鋼為亞穩(wěn)定型，在變形時(shí)會(huì)出現(xiàn)變相，誘發(fā)馬氏體相；羅湖精密拉伸五金件哪里好</p><p style="text-indent:25px">錐形拉伸加工：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(guò)度變薄乃至破裂，需要經(jīng)過(guò)多次過(guò)渡逐漸成形。階梯拉伸法是首先將坯料拉伸成階梯形過(guò)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(guò)渡件的拉伸次數(shù)、工藝等與階梯圓筒件的拉伸相同。矩形再拉伸加工：多次拉伸成形的高矩形件，其變形不*與深圓筒形件的拉伸不同，與低盒形件的變形也有很大差別。圖1-46為多工位自動(dòng)搬送壓力機(jī)進(jìn)行高矩形盒件加工時(shí)，多次拉伸過(guò)程中制件外形、尺寸伴隨拉伸高度的變化。羅湖精密拉伸五金件哪里好</p><p style="text-indent:25px">深圳市銘豐慶五金制品有限公司坐落在深圳市龍崗區(qū)平湖街道辦新木社區(qū)居委會(huì)老村路24號(hào)，是一家專(zhuān)業(yè)的一般經(jīng)營(yíng)項(xiàng)目是：五金制品、彈簧、眼鏡配件、塑膠制品、電子產(chǎn)品的生產(chǎn)和購(gòu)銷(xiāo)（不含限制項(xiàng)目）（取得消防部門(mén)驗(yàn)收合格后方可開(kāi)業(yè)）。汽車(chē)、電器、電子、眼鏡、智能穿戴、智能通信、五金商標(biāo)禮品等行業(yè)的配件的生產(chǎn)。公司。唯才是舉，唯能是用：擁有優(yōu)秀人才51~100人和，是實(shí)現(xiàn)企業(yè)戰(zhàn)略目標(biāo)的基礎(chǔ)，是企業(yè)持續(xù)發(fā)展的動(dòng)力。誠(chéng)實(shí)、守信是對(duì)企業(yè)的經(jīng)營(yíng)要求，也是我們做人的基本準(zhǔn)則。公司致力于打造***的[ "五金沖壓", "精密彈簧", "精密五金模具", "眼鏡配件" ]。公司憑著雄厚的技術(shù)力量、飽滿(mǎn)的工作態(tài)度、扎實(shí)的工作作風(fēng)、良好的職業(yè)道德，樹(shù)立了優(yōu)良的[ "五金沖壓", "精密彈簧", "精密五金模具", "眼鏡配件" ]形象，贏得了社會(huì)各界的信任和認(rèn)可。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/972081.html</p></div></div></div></div></div><div id="7eqc83a" class="page-right twoColRt"><div id="umdjnyz" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="rjaws8y" class="recomPic likePro"><a 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