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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="dxu28dk" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/QYBM3926/637274910286132813/6587646.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="cbda3pw" 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>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產品關鍵詞：</span>鋼箱梁計算哪家好</p><p><span>***更新：</span>2020-06-22 09:26:06</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="yikrykb" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">蘇州橋友信息科技有限公司</a></p><p><span>聯(lián)系人：</span>崔經理</p><p><span>郵箱: </span>2652970874@qq.com</p><p><span>電話: </span>17368130323</p><p><span>傳真: </span>0512_</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>0512-62697703</p><p><span>地址: </span>高新區(qū)竹園路209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="f29xkbi" class="page-proshow02"><p class="title">詳細說明</p><div id="lfhz2wi" class="box"><p><p style="text-indent:25px">鋼箱梁和松孔防止方法有：我們要正確的使用冒口鐵，使鑄件按照順序凝固；之后向冒口內導入熱金屬液、加大冒口等方式用來延緩冒口冷卻；開設冷卻肋或冷卻刺；改變零件的局部結構，消除熱節(jié)部位，這樣做有利于順序凝固；適當降低硬模溫度，鋼箱梁計算哪家好，鋼箱梁計算哪家好，按順序凝固原則調控涂料；使得內澆道均勻分布于鑄型上，在某些情況之下，鋼箱梁計算哪家好，在內澆道對面放置冷鐵；可以適當降低合金的瓷鑄溫度；爐料應該保持干燥并需要清潔；型砂的水分要適當，鑄型的排氣要暢通。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鋼箱梁計算哪家好" src="https://tyunfile.71360.com/UploadFile/QYBM3926/637274910286132813/6587646.jpg"></div><p style="text-indent:25px">鋼箱梁在精度設計時，如果單項精度過高，不僅不能夠提高整體的精度，反面會增加產品成本。而單項精度要求過低，會造成其他精度的損失，從而使整體精度降低1.3.4幾何精度設計的主要方法幾何精度設計的原始依據(jù)是產品的技術要求。因此，首先應調查、分析、提出產品的技術要求。在明確產品的使用功能、性能、結構、材料、使用環(huán)境、批量、生產率等因素后方能開始幾何精度設計精度設計時，首先需要確定產品整機的精度，隨后確定部件的精度要求，后確定零件的精度。精度設計的方法主要有類比法、計算法和試驗法三種1.類比法類比法（也稱經驗法）就是與經過實際使用證明合理的類似產品的相應要素相比較，確定所設計零件的幾何要素的精度。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="鋼箱梁計算哪家好" src="https://tyunfile.71360.com/UploadFile/QYBM3926/637274908983496094/111444.jpg"></div><p style="text-indent:25px">對于不同的鋼箱梁和不同的生產階段，應該在何種范圍內和何種程度上具有互換性，還需進行具體的分析。例如，滾動軸承作為由專業(yè)化工廠生產的高精度標準部件，它與其他零件具有裝配關系的各尺寸應該具有完全的互換性，但其內，外圈和滾子等零件相互裝配的尺寸的精度要求極高，如果也要求其具有完全的互換性，就會給制造帶來極大的困難，所以其往往只有不完全的互換性，即采取選擇裝配的方法，才能取得較好的經濟效果，又不影響整個軸承的使用在追求個性化的時代，如果產品不是批量或大批量生產，而是單件或少批量生產，產品的零部件可以不需要具有互換性，采用配制的方法制造即可如果產品的性能要求非常嚴格，相應的配合精度要求非常高，采用通用批量生產的設備和加工方法無法保證時，一般采用配制的方法進行生產，這樣的零部件則不具備互換性5.協(xié)調匹配產品的幾何精度是由眾多零部件的兒何精度綜合構成的，零部件的幾何精度是由組成零部件的各個要素的幾何精度綜合構成的，要素的幾何精度則是由各種不同幾何特性的精度要求綜合枃成的。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/348205.html</p></div></div></div></div></div><div id="8gf2y9x" class="page-right twoColRt"><div id="xmt2e93" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="7x2wpx8" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應" class="vcenter" 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