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<script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head><body> <h1><a href="http://www.cdcfah.com/">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub id="qgqbi"></sub><u id="qgqbi"></u><noframes id="qgqbi"></noframes><menu 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class="proBig"><div id="od23cug" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/mfq123/637280074327705079/4833510.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="3mtqceq" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/mfq123/637280074327705079/4833510.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="wvsuwtf" 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>珠海金屬精密拉伸五金件模具,精密拉伸五金件</p><p><span>***更新：</span>2020-10-18 00:18:25</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="8z7i3do" 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="hgnkhyv" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="dx7ixta" class="box"><p><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，珠海金屬精密拉伸五金件模具，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，珠海金屬精密拉伸五金件模具，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，珠海金屬精密拉伸五金件模具。 </p> <p> <br /> 這兩種特殊水泥涂層均適用于沖壓拉伸件的內(nèi)防腐，提高抵抗侵蝕的能力。珠海金屬精密拉伸五金件模具</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="珠海金屬精密拉伸五金件模具,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074327705079/4833510.png"></div><p> 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(kuò)形加工。 </p> <p> <br /> </p> <p> 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(jìn)行再次拉伸，以增加成形容器的深度。 </p> <p> <br /> </p> <p> 逆向拉伸加工：將前工序的拉伸工件進(jìn)行反向拉伸，工件內(nèi)側(cè)變成外側(cè)，并使其外徑變小的加工。 </p> <p> <br /> </p> <p> 變薄拉伸加工：用凸模將已成形容器擠入比容器外徑稍小的凹模型腔內(nèi)，使帶底的容器外徑變小，同時壁厚變薄，既消除壁厚偏差，又使容器表面光滑。 </p> <p> <br /> 龍崗耐磨精密拉伸五金件工廠可采用熱處理來獲取良好的機(jī)械性能、物理性能和抗腐蝕性能。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="珠海金屬精密拉伸五金件模具,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074021494141/8351680.png"></div><p style="text-indent:25px">山形拉伸加工（Hill drawing）：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。丘形拉伸加工（Hill drawing）：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。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）。</p><p style="text-indent:25px">變薄拉伸加工：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：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。逆向拉伸加工：將前工序的拉伸工件進(jìn)行反向拉伸，工件內(nèi)側(cè)變成外側(cè)，并使其外徑變小的加工。誘發(fā)馬氏體含量也會隨著變形量的增加而增高。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="珠海金屬精密拉伸五金件模具,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074274453125/5442382.png"></div><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。奧氏體不銹鋼為亞穩(wěn)定型，在變形時會出現(xiàn)變相，誘發(fā)馬氏體相；龍崗耐磨精密拉伸五金件工廠</p><p style="text-indent:25px">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。珠海金屬精密拉伸五金件模具</p><p style="text-indent:25px">五金工具國內(nèi)外企業(yè)的融合進(jìn)一步加快。國內(nèi)加工企業(yè)為了提高自身實力，更快地拓展國際市場，將通過多種手段加快和國外企業(yè)的融合以提高產(chǎn)品質(zhì)量、提高競爭力。目**金沖壓，精密彈簧，精密五金模具，眼鏡配件產(chǎn)品已逐步形成系列化、標(biāo)準(zhǔn)化、品牌化，不僅品種規(guī)格齊全，產(chǎn)品質(zhì)量穩(wěn)定，而且引進(jìn)的部分名優(yōu)產(chǎn)品在國際市場上也有一定的競爭力。、增強(qiáng)有限責(zé)任公司企業(yè)的售后服務(wù)水平。只是把產(chǎn)品賣出去對有限責(zé)任公司企業(yè)長期的發(fā)展沒有任何意義，售后服務(wù)水平考驗著一個品牌的綜合實力，出名的品牌背后必定有著讓人信賴的售后保證。五金企業(yè)需要意識到售后服務(wù)水平是增強(qiáng)品牌市場競爭力的一個重要法寶。中國正在從制造大國逐漸向制造強(qiáng)國邁進(jìn)，我國五金工具行業(yè)發(fā)展勢頭良好，一般經(jīng)營項目是：五金制品、彈簧、眼鏡配件、塑膠制品、電子產(chǎn)品的生產(chǎn)和購銷（不含限制項目）（取得消防部門驗收合格后方可開業(yè)）。汽車、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)。產(chǎn)品規(guī)格齊全，能滿足不同客戶的多種需要。珠海金屬精密拉伸五金件模具</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)型的公司。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。銘豐慶五金制品憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來的聲譽(yù)和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br 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