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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="o7q3sny" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/mfq123/637280074424853516/1892555.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="uj3bwyx" 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>惠山防腐精密拉伸五金件的用途和特點,精密拉伸五金件</p><p><span>***更新：</span>2020-09-03 05:15:22</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="4xaaotj" 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="vstjjeu" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="vojakvq" 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，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，側(cè)壁在沖壓過程中是懸空的，不貼模，直到成形結(jié)束時才貼模。成形時側(cè)壁的不同部位變形特點不完全相同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存在的復(fù)合成形，惠山防腐精密拉伸五金件的用途和特點，惠山防腐精密拉伸五金件的用途和特點，惠山防腐精密拉伸五金件的用途和特點。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)。下面和禾聚精密五金廠小編一起來看下沖壓拉伸件防腐處理方法?；萆椒栏芾煳褰鸺挠猛竞吞攸c</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="惠山防腐精密拉伸五金件的用途和特點,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074424853516/1892555.png"></div><p style="text-indent:25px">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)則形狀的薄壁零件圓帶凸緣(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。深圳本地精密拉伸五金件哪里買沖壓過程中需根據(jù)原材料的出料實際情況與各種具體需求加以調(diào)整。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="惠山防腐精密拉伸五金件的用途和特點,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074188476563/7643580.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，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，側(cè)壁在沖壓過程中是懸空的，不貼模，直到成形結(jié)束時才貼模。成形時側(cè)壁的不同部位變形特點不完全相同。</p><p style="text-indent:25px">因為和氯系添加劑會發(fā)生化學(xué)反應(yīng)，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，所以要選擇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。一般選用含有硫氯復(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，五金沖壓件的尺寸精度是由公差登記所衡量的，國標(biāo)規(guī)定分為20個等級，從IT01、IT0、IT1、IT2～I(xiàn)T18, 數(shù)字越大，公差等級（加工精度）越低，尺寸允許的變動范圍（公差數(shù)值）越大，加工難度越小拉伸件應(yīng)用于機(jī)械、電子、電器、儀表、汽車、航空、**產(chǎn)品。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="惠山防腐精密拉伸五金件的用途和特點,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074093007813/4737142.png"></div><p> 邊緣拉伸加工：對前工序拉伸產(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。 </p> <p> <br /> </p> <p> 深度拉伸加工：超過拉伸加工極限的拉伸加工產(chǎn)品，需要經(jīng)過兩次以上的多次拉伸方能完成。經(jīng)過前工位深度方向拉伸加工的產(chǎn)品，在深度方向進(jìn)行再拉伸加工。 </p> <p> <br /> </p> <p> 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度變薄乃至破裂，需要經(jīng)過多次過渡逐漸成形。 </p> <p> <br /> 水泥砂漿內(nèi)襯加特殊涂層，可以提高沖壓拉伸件內(nèi)襯的抗腐蝕能力?；萆椒栏芾煳褰鸺挠猛竞吞攸c</p><p style="text-indent:25px">精密拉伸沖壓中，鋁合金拉伸件是比較難加工的?；萆椒栏芾煳褰鸺挠猛竞吞攸c</p><p style="text-indent:25px">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(yán)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(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，對前工序拉伸產(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，超過拉伸加工極限的拉伸加工產(chǎn)品，需要經(jīng)過兩次以上的多次拉伸方能完成。經(jīng)過前工位深度方向拉伸加工的產(chǎn)品，在深度方向進(jìn)行再拉伸加工。寬凸緣拉伸件，***次拉伸時就拉伸成所要求的凸緣直徑，在其后再拉伸時，凸緣直徑保持不變?；萆椒栏芾煳褰鸺挠猛竞吞攸c</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(tuán)隊和良好的市場口碑。公司業(yè)務(wù)分為五金沖壓，精密彈簧，精密五金模具，眼鏡配件等，目前不斷進(jìn)行創(chuàng)新和服務(wù)改進(jìn)，為客戶提供良好的產(chǎn)品和服務(wù)。公司將不斷增強企業(yè)重點競爭力，努力學(xué)習(xí)行業(yè)知識，遵守行業(yè)規(guī)范，植根于五金、工具行業(yè)的發(fā)展。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/1137471.html</p></div></div></div></div></div><div id="ltz8xxi" class="page-right twoColRt"><div id="ckv3iod" 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