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src="https://tyunfile.71360.com/UploadFile/lmfmyj/637249885633291016/5569944.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ipb8x7v" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/lmfmyj/637249885633291016/5569944.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ys828qs" class="content"><p><span>需求數量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>浙江省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產品關鍵詞：</span>鄞州粉末冶金零件</p><p><span>***更新：</span>2020-06-01 03:21:50</p><p><span id="click" >瀏覽次數：0次</span></p><a rel="nofollow" class="button">聯系我們</a></div></div><div id="3oxz9am" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">寧波聯銘粉末冶金有限公司</a></p><p><span>聯系人：</span>樂雪君</p><p><span>郵箱: </span>286178122@qq.com</p><p><span>電話: </span>13484278563</p><p><span>傳真: </span>0574_</p><p><span>網址: </span></p><p><span>手機: </span>0574-13484278</p><p><span>地址: </span>蛟川街道鎮(zhèn)寧東路685號</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="ke4vqxe" class="page-proshow02"><p class="title">詳細說明</p><div id="qvkrlh3" class="box"><p><p> 粉末冶金材料的熱處理工藝 </p> <p> 粉末冶金材料的熱處理工藝您了解多少呢?現在粉末冶金材料被應用得越來越寬泛，它們在取代低密度、低硬度和強度的鑄鐵材料方面已經具有明顯優(yōu)勢。粉末冶金材料的熱處理有淬火、化學熱處理、蒸汽處理和特殊熱處理幾種形式，下面魯州粉末冶金制品有限公司為大家著重介紹淬火熱處理和化學熱處理兩種。 </p> <p> 淬火熱處理工藝 </p> <p> 粉末冶金材料由于孔隙的存在，在傳熱速度方面要低于致密材料，因此在淬火時，鄞州粉末冶金零件，淬透性相對較差。另外淬火時，粉末材料的燒結密度和材料的導熱性是成正比關系的;粉末冶金材料因為燒結工藝與致密材料的差異，鄞州粉末冶金零件，內部均勻性要優(yōu)于致密材料，但存在較小的微觀區(qū)域的不均勻性，所以，完全奧氏體化時間比相應鍛件長50%，鄞州粉末冶金零件，在添加合金元素時，完全奧氏體化溫度會更高、時間會更長。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鄞州粉末冶金零件" src="https://tyunfile.71360.com/UploadFile/lmfmyj/637249885633291016/5569944.jpg"></div><p> 生產工藝的不同決定了不同的性能。粉末冶金零件相對于傳統(tǒng)鋼鐵產品的優(yōu)勢包括結構復雜、精度高、一致性高、節(jié)材省能及成份均勻等優(yōu)點，非常適合于大批量生產。目前，粉末冶金產品技術已被廣泛應用于機械、交通、電子、航空航天、兵器、核工業(yè)、生物、信息和環(huán)保節(jié)能等領域，成為新材料科學中相當有發(fā)展活力的分支。 </p> <p> 通過提高原料粉末潔凈度和優(yōu)化不同尺寸粉末匹配，獲得了優(yōu)異的力學性能，為確保葉輪性能可靠性奠定了堅實的材料性能基礎。隨后，研究粉末冶金零部件熱等靜壓致密化機理，發(fā)展了近凈成形構件精確尺寸預測與控制技術，使葉形尺寸一致性從偏差大于20%提高到小于5%，達到應用要求的技術指標。我們在產品的試制、工藝固化穩(wěn)定、小批量生產的過程中不斷研制、改進完善、優(yōu)化設計終建立了一整套粉末預處理與近凈成形裝置，研發(fā)了相關技術，山東粉末冶金公司形成了氫泵葉輪制造的研發(fā)與小批量生產能力。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鄞州粉末冶金零件" src="https://tyunfile.71360.com/UploadFile/lmfmyj/637249885492226563/1132398.jpg"></div><p> 雙向壓制雙向壓制一般分為陰模浮動式壓制和陰模拉下式壓制。粉末治金陰模浮動式壓制陰模浮動式壓制工作原理：陰模由彈簧支承，處于浮動狀態(tài)，下模沖固定不動，上模沖在凸輪帶動下向下進入陰模型腔，對粉末施加向下壓力。開始加壓時，由于粉末與陰模型腔壁間摩擦力小于彈簧支承力，只有上模沖向下移動，隨著壓力增大，粉末對陰模型腔壁間的摩擦力大干彈簧支承力時，陰模型腔與上模沖一起向下運動，與下模沖間產生相對移動，從而達到雙向壓制的效果。陰模浮動式壓制的一個循環(huán)有以下步驟。A裝料：手工或者由自動送粉器把粉末均勻裝入陰模型腔。B上沖下壓：粉末填充完畢后，陰模彈簧支撐，下模沖位置固定不變，上模沖在壓機凸輪帶動下，向下進入陰模型腔，對陰模型腔中的粉末施加向下壓力。C陰模浮動：隨著上模沖施加的壓力不斷增大，粉末對陰模型腔壁間的摩擦力也不斷增大，當此摩擦力大干陰模型腔的彈簧支撐力時，陰模型腔與上模沖一起向下運動，直到坯件成型。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鄞州粉末冶金零件" src="https://tyunfile.71360.com/UploadFile/lmfmyj/637249885740498047/8268521.jpg"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/102872.html</p></div></div></div></div></div><div id="qfpga2a" class="page-right twoColRt"><div id="kuwdnjv" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="mgikrd2" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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