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內(nèi)容來源：http://www.sdgglaser.com/ 作者：武將發(fā)布日期：2021-04-06 08:36 閱讀次數(shù)：1284 次 <em class="collect" onclick="javascript:addFavorite2()">點擊收藏</em> </div> <div id="tgxlvry" class="NewsIn"><p class="MsoNormal"> <p class="MsoNormal"> 鋁型材的橫斷面形狀和尺寸是配置膜孔時的主要考慮因素之一；根據(jù)對于坐標軸的對稱程度，可將鋁型材分成三類：即橫斷面對稱于兩個坐標軸的型材，對稱性最好；橫斷面對稱于一個坐標軸的型材，對稱性次之；橫斷面無對稱軸的型材，對稱性差；<o:p></o:p> </p> <p class="MsoNormal"> </p> <p class="MsoNormal"> 在設(shè)計單孔模具時，對于橫斷面與兩個坐標軸相對稱（或近似對稱）的鋁型材，其合理的?？着渲檬菓?yīng)使鋁型材斷面的重心和模具的中心相重合；對于對稱于一個坐標軸的型材，如果其緣板的厚度相等或彼此相差不大時，?？椎呐渲脩?yīng)使型材的對稱軸與模具的一個坐標軸重合，而使鋁型材斷面的重心位于另一個坐標軸上；<o:p></o:p> </p> <p class="MsoNormal"> </p> <p class="MsoNormal"> 對于非對稱性的鋁型材和壁厚差別很大的鋁型材，若采用上述原則配置?？祝瑢⑹逛X型材斷面的重心到模具中心的距離增大，致使?？孜恢靡频侥＞叩倪吘壣希液茈y保證鋁型材各個部位的流動速度均勻，甚至需要制造通道移位的專用工藝裝備；因此，對于各部分壁厚不等的鋁型材和不對稱型材，必須將型材的重心相對于模具的中心做一定距離的移動，盡可能地使難于流動的壁厚較薄的部位靠近模具中心，盡量使金屬各部位在變形時的單位靜壓力相等；<o:p></o:p> </p> <p class="MsoNormal"> </p> <p class="MsoNormal"> 對于緣板厚度比雖然不大，但截面形狀十分復(fù)雜的鋁型材，應(yīng)將鋁型材截面外接圓的中心布置在模具中心線上；對于擠壓比很大，擠壓有困難或流動很不均勻的某些鋁型材可采用平衡?？椎姆椒ā⒃黾庸に囉嗔康姆椒ɑ虿扇『侠碚{(diào)整金屬流速的其他措施來改善擠壓流動狀況，保證薄壁緣板部分的阻力最小，改善金屬流動的均勻性，以減少鋁型材在橫向和縱向產(chǎn)生彎曲、扭曲、波浪及撕裂等缺陷；為了防止鋁型材由于自重產(chǎn)生扭擰和彎曲，應(yīng)將型材大面朝下，增加型材的穩(wěn)定性；<o:p></o:p> </p> <p class="MsoNormal"> </p> <p class="MsoNormal"> <span style="font-family:宋體;">總之，單孔鋁型材?？椎牟贾茫瑧?yīng)盡可能保證在</span><span style="font-family:Calibri;">x</span><span style="font-family:宋體;">軸上下方和</span><span style="font-family:Calibri;">y</span><span style="font-family:宋體;">軸左右方的金屬供給量相等，以改善鋁型材各部分金屬流動的均勻性，提高型材的質(zhì)量；同時，也應(yīng)考慮模具的強度和壽命，盡可能使用通用的輔助模具；</span><o:p></o:p> </p> <p class="MsoNormal"> </p> <strong>熱搜詞：</strong> <a href="http://www.sdgglaser.com/" target="_blank"><span style="color:#E53333;">鋁型材</span></a> </p></div> <div id="kxsguth" class="Next clear"> <a href="http://www.sdgglaser.com/article/467" class="nextTitle">上一章：大懸臂半空心鋁型材模具的設(shè)計</a> <a href="http://www.sdgglaser.com/article/465" 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class="Mask">  <div id="oqtwrnb" class="Login"> <p class="title">請注冊成為會員，便于產(chǎn)品數(shù)據(jù)的下載。 <a class="close"><img src="http://www.sdgglaser.com/Site/Default/theme/images/close.png"></a> </p> <form action="http://www.sdgglaser.com/member/user/login" method="post"> <p>用戶名：<input type="text" name="Account"></p> <p>密碼：<input type="password" name="Password"></p> <p>驗證碼：<input type="text" name="vc"><img src="" alt="點擊刷新驗證碼" id="ulImg" class="ulImg ulfresh1" /></p> <p><input type="button" value="登錄"> <input type="reset" value="重置"></p> <a href="javascript:;" class="register register1">會員注冊</a> <a href="javascript:;" class="register register2">忘記密碼</a> <a href="javascript:;" class="register">聯(lián)系客服</a> </form> </div>  <div id="blznbiw" class="Findpwd"> <p class="title">請注冊成為會員，便于產(chǎn)品數(shù)據(jù)的下載。 <a class="close"><img src="http://www.sdgglaser.com/Site/Default/theme/images/close.png"></a> </p> <form action="http://www.sdgglaser.com/member/user/findpwd" method="post"> <p>郵箱：<input type="text" name="Email"></p> <p>驗證碼：<input type="text" name="vc"><img src="" alt="點擊刷新驗證碼" id="ulImg" class="ulImg ulfresh1" /></p> <p><input type="button" value="提交"> <input type="reset" value="重置"></p> </form> </div>  <script type="text/javascript" src="http://www.sdgglaser.com/theme/js/east.address.js"></script> <div id="zbhrtdv" class="Register"> <p class="title">注：*為必填欄目，艾普斯承諾不會泄露客戶個人信息。 <a class="close"><img src="http://www.sdgglaser.com/Site/Default/theme/images/close.png"></a> </p> <form action="http://www.sdgglaser.com/member/user/register" method="post"> <p><span><em>*</em>用戶名：</span><input type="text" name="Account">英文名稱為4到16位字母或數(shù)字，中文名稱為2到8個漢字</p> <p><span><em>*</em>郵箱：</span><input type="text" name="Email"></p> <p><span><em>*</em>手機號碼：</span><input type="text" name="Phone">例：1382xxx465x</p>  <p><span><em>*</em>行政地區(qū) ：</span><select name="Area" id="province">省</select> <select name="Area" id="city">市</select> <select name="Area" id="county">區(qū)</select>請選擇您所在的省份與城市</p> <p><span>詳細地址：</span><input style="width:300px;" type="text" name="Address"></p> <p><span><em>*</em>填寫密碼：</span><input type="password" name="password">6到16位任意字符，區(qū)分大小寫</p> <p><span><em>*</em>確認密碼：</span><input type="password" name="PasswordCheck">請再次輸入您的密碼</p> <p><span><em>*</em>驗證碼：</span><input type="text" name="vc"><img src="" alt="點擊刷新驗證碼" id="ulImg" class="ulImg ulfresh" />點擊驗證碼進行刷新</p> <p><input type="button" value="注冊"> <input type="reset" value="重置"></p> </form> </div> </div> <script> // 右側(cè)懸浮框滾動 var oBtn = document.getElementById("backTop"); oBtn.onclick = function() { $("body,html").animate({ scrollTop: (0) //讓body的scrollTop等于pos的top，就實現(xiàn)了滾動 }, 1000); } var height=$(window).height(); var topH=height-90; $(".SuspensionL").css("top",topH); $(window).scroll(function(){ // 滾動條距離頂部的距離大于 200px時 if($(window).scrollTop() >= 700){ $(".SuspensionL").css("position","fixed"); $(".SuspensionL").css("top","50%"); $(".SuspensionL").css("margin-top","-255px"); } else{ var height=$(window).height(); var topH=height-90; $(".SuspensionL").css("top",topH); $(".SuspensionL").css("margin-top","0px"); } }); // 地區(qū)載入 addressInit('province', 'city', 'county'); var area = ",,-請選擇地區(qū)-"; if (area != '') { addressInit('province', 'city', 'county', area.split(',')[0], area.split(',')[1], area.split(',')[2]); } else { addressInit('province', 'city', 'county'); } //驗證碼 $(".Login .ulImg").attr("src", "http://www.sdgglaser.com/verifycode?prefix=u&time=" + Math.random()); $(".Login .ulImg").click(function () { $(".Login .ulImg").attr("src", "http://www.sdgglaser.com/verifycode?prefix=u&time=" + Math.random()); }); //驗證碼 $(".Register .ulImg").attr("src", "http://www.sdgglaser.com/verifycode?prefix=ur&time=" + Math.random()); $(".Register .ulImg").click(function () { $(".Register .ulImg").attr("src", "http://www.sdgglaser.com/verifycode?prefix=ur&time=" + Math.random()); }); //找回密碼驗證碼 $(".Findpwd .ulImg").attr("src", "http://www.sdgglaser.com/verifycode?prefix=u&time=" + Math.random()); $(".Findpwd .ulImg").click(function () { $(".Findpwd .ulImg").attr("src", "http://www.sdgglaser.com/verifycode?prefix=u&time=" + Math.random()); }); $.getJSON('http://www.sdgglaser.com/member/user/getuser', function(data) { if (data == null || data == '' || data.Account == '') { $(".header .headT a.login").click(function(){ $(".Login").show(); $(".Mask").show(); }); $(".Login .close").click(function(){ $(".Login").hide(); $(".Mask").hide(); }); $(".header .headT a.register").click(function(){ $(".Register").show(); $(".Mask").show(); }); $(".Register .close").click(function(){ $(".Register").hide(); $(".Mask").hide(); }); $(".Login form .register1").click(function(){ $(".Register").show(); $(".Login").hide(); }); $(".Findpwd .close").click(function(){ $(".Findpwd").hide(); $(".Mask").hide(); }); $(".Login form .register2").click(function(){ $(".Findpwd").show(); $(".Login").hide(); $(".Mask").show(); }); } else { $(".header .headT a.login").text(data.Account); $(".header .headT a.register").attr("href","http://www.sdgglaser.com/member/user/logout"); $(".header .headT a.register").text('退出'); } }); $(".foot2L li:nth-child(3n)").css("margin-right","0px"); /*判斷登陸成功或失敗*/ $(".Register form input[type='button']").click(function() { var userTele = $(".Register input[name='Phone']").val(); var Account = $(".Register input[name='Account']").val(); var Email = $(".Register input[name='Email']").val(); var Password = $(".Register input[name='password']").val(); var PasswordCheck = $(".Register input[name='PasswordCheck']").val(); var Code = $(".Register input[name='vc']").val(); if (userTele == "" || userTele == "手機號") { // 手機號非空 alert('請?zhí)顚懯謾C號'); return false; } else if (!(/^1\d{10}$|^(0\d{2,3}-?|\(0\d{2,3}\))?[1-9]\d{4,7}(-\d{1,8})?$/.test(userTele))) { // 手機號格式 alert('手機號格式不正確'); return false; }else { $(".Register form").ajaxSubmit({ url: 'http://www.sdgglaser.com/member/user/register', dataType: 'json', success: function(data) { if (data.state) { alert('注冊成功'); window.location.href="http://www.sdgglaser.com/member/user/logout"; } else { alert(data.message); } } }); } }) /*判斷登錄成功或失敗*/ $(".Login form input[type='button']").click(function() { $(".Login form").ajaxSubmit({ url: 'http://www.sdgglaser.com/member/user/login', dataType: 'json', success: function(data) { if (data.state) { alert('登陸成功'); location.reload(); } else { alert(data.message); } } }); }) /*判斷找回密碼成功或失敗*/ $(".Findpwd form input[type='button']").click(function() { $(".Findpwd form").ajaxSubmit({ url: 'http://www.sdgglaser.com/member/user/findpwd', dataType: 'json', success: function(data) { if (data.state) { alert('新密碼已發(fā)送到您的郵箱，請注意查看！'); location.reload(); } else { alert(data.message); } } }); }) </script>  </div> <a href="http://www.sdgglaser.com/">成人三级视频在线观看8888,91亚洲成人影院,五月婷成人免费视频,精品无码久久久久成人AV</a> (function(){ var bp = 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