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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="f8fxhgs" 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>龍崗沖壓精密拉伸五金件哪里好,精密拉伸五金件</p><p><span>***更新：</span>2020-09-21 06:08:24</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="3roga9g" 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="tiacj9o" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="odvs8tv" class="box"><p><p> 五金沖壓件拉伸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，龍崗沖壓精密拉伸五金件哪里好、錐形，龍崗沖壓精密拉伸五金件哪里好、拋物線形及其他不規(guī)則形狀的薄壁零件。 </p> <p> <br /> </p> <p> 帶凸緣半球形拉伸加工：球形件拉伸時(shí)，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(wèn)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。 </p> <p> <br /> </p> <p> 法蘭盤(pán)拉伸加工：將拉伸產(chǎn)品的法蘭盤(pán)部分進(jìn)行淺拉伸的加工，龍崗沖壓精密拉伸五金件哪里好。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。 </p> <p> <br /> 具有很高的附著力和光潔度，是一種沖壓件防腐蝕涂層。龍崗沖壓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="龍崗沖壓精密拉伸五金件哪里好,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074424853516/1892555.png"></div><p style="text-indent:25px">錐形拉伸加工（Taper drawing）：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。反向拉伸加工（Reverse drawing）：將前工序拉伸加工的工件，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(duì)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)。龍崗沖壓精密拉伸五金件哪里好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><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="龍崗沖壓精密拉伸五金件哪里好,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074303623047/5027911.png"></div><p style="text-indent:25px">矩形再拉伸加工（Rectangular redrawing）：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。臺(tái)階拉伸加工（Step drawing）：將左側(cè)初拉伸產(chǎn)品進(jìn)行再拉伸加工，成形為右側(cè)的臺(tái)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(tái)階變化部分的側(cè)壁易誘發(fā)切應(yīng)力產(chǎn)生變形</p><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(duì)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(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，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。拉伸量要控制在百分之一的擺布。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="龍崗沖壓精密拉伸五金件哪里好,精密拉伸五金件" src="https://tyunfile.71360.com/UploadFile/mfq123/637280074021494141/8351680.png"></div><p style="text-indent:25px">法蘭盤(pán)拉伸加工：將拉伸產(chǎn)品的法蘭盤(pán)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(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。深度拉伸加工：超過(guò)拉伸加工極限的拉伸加工產(chǎn)品，需要經(jīng)過(guò)兩次以上的多次拉伸方能完成。經(jīng)過(guò)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(shí)就拉伸成所要求的凸緣直徑，在其后再拉伸時(shí)，凸緣直徑保持不變。鋁合金拉伸件具有優(yōu)良的導(dǎo)電性、導(dǎo)熱性和抗蝕性。珠海防腐精密拉伸五金件加工</p><p style="text-indent:25px">沖壓拉伸加工中為什么要用塑性好的金屬材料？龍崗沖壓精密拉伸五金件哪里好</p><p> ①控制機(jī)械的運(yùn)動(dòng)，如內(nèi)燃機(jī)中的閥門(mén)彈簧片、離合器中的控制彈片等。 </p> <p> <br /> </p> <p> ②吸收振動(dòng)和沖擊能量，如汽車(chē)、火車(chē)車(chē)廂下的緩沖彈片、聯(lián)軸器中的吸振彈片等。 </p> <p> <br /> </p> <p> ③ 貯存及輸出能量作為動(dòng)力，如鐘表彈片、***中的彈片等。 </p> <p> <br /> </p> <p> ④用作測(cè)力元件，如測(cè)力器、彈片秤中的彈片等。彈片的載荷與變形之比稱為彈片剛度，剛度越大，則彈片越硬。按受力性質(zhì)，彈片可分為拉伸彈片、壓縮彈片、扭轉(zhuǎn)彈片和彎曲彈片，按形狀可分為碟形彈片、環(huán)形彈片、板彈片、螺旋彈片、截錐渦卷彈片以及扭桿彈片等。 </p> <p> <br /> 龍崗沖壓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是一家一般經(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)。的公司，致力于發(fā)展為創(chuàng)新務(wù)實(shí)、誠(chéng)實(shí)可信的企業(yè)。公司自創(chuàng)立以來(lái)，投身于五金沖壓，精密彈簧，精密五金模具，眼鏡配件，是五金、工具的主力軍。銘豐慶五金制品不斷開(kāi)拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺(tái)，以應(yīng)用為重點(diǎn)，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價(jià)值，提供更優(yōu)服務(wù)。銘豐慶五金制品始終關(guān)注自身，在風(fēng)云變化的時(shí)代，對(duì)自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使銘豐慶五金制品在行業(yè)的從容而自信。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/1363104.html</p></div></div></div></div></div><div id="l32qnn8" class="page-right twoColRt"><div id="yf88u4v" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="uelnpj8" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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