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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="feb7vcz" 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="3q4egsu" 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>羅湖質(zhì)量精密拉伸五金件,精密拉伸五金件</p><p><span>***更新：</span>2020-09-20 10:06:27</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="0imda7b" 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="ihewdpm" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="esurjvx" class="box"><p><p> 鋁合金拉伸件是利用模具，將沖裁后得到的一定形狀平板毛坯沖壓成各種開口空心零件或?qū)㈤_口空心毛坯減小直徑，增大高度的一種機(jī)械加工工藝。這種工藝經(jīng)常應(yīng)用于汽車、飛機(jī)、拖拉機(jī)、電器、儀表、電子、航空、航天、汽車、機(jī)械制造、船舶配件的制作。 </p> <p> <br /> </p> <p> 鋁合金拉伸件具有優(yōu)良的導(dǎo)電性，羅湖質(zhì)量精密拉伸五金件、導(dǎo)熱性和抗蝕性?？刹捎脽崽幚韥慝@取良好的機(jī)械性能、物理性能和抗腐蝕性能，羅湖質(zhì)量精密拉伸五金件。 </p> <p> <br /> </p> <p> 合適用于拉伸加工鋁合金因為5000系列**有5052、5005、5083、5A05。這系列的鋁合金的特點為密度低，抗拉強(qiáng)度高，延伸率高，羅湖質(zhì)量精密拉伸五金件，疲勞強(qiáng)度好，但不可做熱處理強(qiáng)化。 </p> <p> <br /> 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。羅湖質(zhì)量精密拉伸五金件</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="羅湖質(zhì)量精密拉伸五金件,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074021494141/8351680.png"></div><p style="text-indent:25px">將前工序拉伸的工件，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)面板的表面形狀復(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)合成形根據(jù)工件圖紙，分析工件的形狀特點、尺寸大小、精度要求、原材料尺寸規(guī)格和力學(xué)性能，并結(jié)合可供選用的設(shè)備規(guī)格以及生產(chǎn)批量等因素。良好的拉伸工藝性應(yīng)保證材料消耗少、工序數(shù)目少、占用設(shè)備數(shù)量少、模具結(jié)構(gòu)簡單而壽命高、質(zhì)量穩(wěn)定、操作簡單?；葜菽湍ゾ芾煳褰鸺睦镔I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><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="羅湖質(zhì)量精密拉伸五金件,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074303623047/5027911.png"></div><p style="text-indent:25px">變薄拉伸加工（Ironing）：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(qiáng)度面板拉伸加工（Panel drawing）：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。</p><p style="text-indent:25px">深錐形件由于深度變形程度較大，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多次拉伸成形的高矩形件，其變形不僅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沖壓成形方法將初拉伸進(jìn)行再拉伸成形為臺階形底部。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。精密拉伸沖壓中，鋁合金拉伸件是比較難加工的。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="羅湖質(zhì)量精密拉伸五金件,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074118720704/923197.png"></div><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、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。拉伸時會出現(xiàn)開裂有時會出現(xiàn)拉伸變形后；有時會在拉伸件由凹模內(nèi)退出的時候發(fā)生；有時在拉伸變形后受到撞擊或者振動時才出現(xiàn)；有時在拉伸變形后經(jīng)過一段時間的存放或者使用中出現(xiàn)開裂。 </p> <p> <br /> 奧氏體不銹鋼的冷作硬化**高；羅湖精密拉伸五金件的用途和特點</p><p style="text-indent:25px">環(huán)氧煤瀝青涂層是一種雙組分涂層，該涂層具有較高的附著力和非常光滑的表面。羅湖質(zhì)量精密拉伸五金件</p><p style="text-indent:25px">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。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。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。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。羅湖質(zhì)量精密拉伸五金件</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。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠信為本的理念，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/1354431.html</p></div></div></div></div></div><div id="eyqxjgs" class="page-right twoColRt"><div id="fpr7xzm" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8n4if7r" 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