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class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://m.cdcfah.com/">首頁?<a href="http://m.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://m.cdcfah.com/cp/second-_xiangsu/">橡塑</a>?<a href="http://m.cdcfah.com/cp/third-xiangsu_slbslt/">塑料棒、塑料條</a>?東莞求購pom棒材哪里有賣 **** 蘇州多特瑪工程塑料供應(yīng)</p><div id="wkb3yrm" class="leftbox clearfix"><h1>東莞求購pom棒材哪里有賣 **** 蘇州多特瑪工程塑料供應(yīng)</h1><div id="3qx4y7s" class="proBig"><div id="axleab8" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szdtm01/637418366303171085/4176517.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="dlc5tr3" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szdtm01/637418366303171085/4176517.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="xfl9duq" 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>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>東莞求購pom棒材哪里有賣,pom</p><p><span>***更新：</span>2021-01-05 01:17:14</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="8d232vg" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">蘇州多特瑪工程塑料有限公司</a></p><p><span>聯(lián)系人：</span>李先生</p><p><span>郵箱: </span>network@dtmar.com</p><p><span>電話: </span>13701715149</p><p><span>傳真: </span>0512_</p><p><span>網(wǎng)址: </span>http://www.dtmar.cn</p><p><span>手機(jī): </span>0512-62381302</p><p><span>地址: </span>中國(江蘇)自由貿(mào)易試驗(yàn)區(qū)蘇州片區(qū)蘇州啟月街288號1商幢2-1005室</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="dg8klrs" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ycdrn3q" class="box"><p><p> <span style="font-family:"font-size:14px;"> </span><span style="font-size:14px;font-family:";"> </span><span style="font-size:14px;font-family:";">pom注塑成型的注意事項(xiàng)之</span><span style="font-size:14px;font-family:";">工藝條件：</span> </p><p><span style="font-size:14px;font-family:";">1. 料筒溫度：樹脂的熔點(diǎn)約165℃，實(shí)際成型時(shí)的比較好溫度是190-210℃，比較好是200-210℃。</span> </p><p><span style="font-size:14px;font-family:";">2. 模具溫度：標(biāo)準(zhǔn)模具溫度是60-80℃，根據(jù)成型品的特性，表面狀態(tài)、使用中尺寸的變化、成型周期等要求不同，需要調(diào)節(jié)模具溫度。有時(shí)為降低成型周期，將模具溫度設(shè)定在30-40℃,但容易留下殘留應(yīng)變及得不到好的外觀。</span> </p><p><span style="font-size:14px;font-family:";">3. 注射壓力：應(yīng)考慮樹脂的流動(dòng)性，收縮性，成型品的物性等進(jìn)行設(shè)定。一般為98MPa以上，東莞求購pom棒材哪里有賣。保壓壓力為49-98MPa。</span> </p><p><span style="font-size:14px;font-family:";">4. 注射速度：一般在5-50mm/s,但應(yīng)考慮成型品的形狀、壁厚、質(zhì)量要求、流道粗細(xì)、澆口尺寸等因素進(jìn)行設(shè)定。</span> </p><p><span style="font-size:14px;font-family:";">5. 背壓：為了計(jì)量穩(wěn)定化及防止發(fā)生注嘴的滴料現(xiàn)象，建議背壓設(shè)定為0.5-1.0MPa。</span> </p><p><span style="font-size:14px;font-family:";">6. 螺桿轉(zhuǎn)速：一般以100-150rpm 為宜。</span> </p><p><span style="font-family:"font-size:14px;">7. 成型收縮率：成型收縮率較大，可高達(dá)2-3.5%。</span> </p><p><span style="font-family:"font-size:14px;">8. 二次加工：可進(jìn)行雕刻，攻絲，壓入，金屬嵌件，切削等二次加工，東莞求購pom棒材哪里有賣，東莞求購pom棒材哪里有賣。</span> POM板是一種沒有側(cè)鏈，高密度，高結(jié)晶性的共聚性聚合物，具有優(yōu)異的綜合性能。東莞求購pom棒材哪里有賣</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="東莞求購pom棒材哪里有賣,pom" src="https://tyunfile.71360.com/UploadFile/szdtm01/637418366303171085/4176517.png"></div><p><span style="font-size:14px;font-family:";"> POM板棒改性的意義。POM在成形加工過程中極易結(jié)晶，生成尺寸較大的球晶，當(dāng)材料受到?jīng)_擊時(shí)，這些尺寸較大的球晶容易形成應(yīng)力集中點(diǎn)，造成材料的破壞，所以POM缺口敏感性大，缺口沖擊強(qiáng)度低，成型收縮率高，制品易產(chǎn)生內(nèi)應(yīng)力，難于緊密成型。這極大地限制了POM的使用范圍，在某些方面不能滿足工業(yè)要求，因此，為了更好地適應(yīng)高速、高壓、高溫、高負(fù)荷等苛刻的工作環(huán)境，進(jìn)一步擴(kuò)大POM的應(yīng)用范圍，需進(jìn)一步提高聚甲醛的沖擊韌性，耐熱和耐摩擦等性能。</span> </p><p><span style="font-size:14px;font-family:";"> </span><span style="font-size:14px;font-family:";">所以POM改性研究的關(guān)鍵：</span> </p><p><span style="font-size:14px;font-family:";">①POM的物理改性關(guān)鍵在于復(fù)合體系相間的相容性，應(yīng)加大多功能增容劑的開發(fā)研究。新開發(fā)的凝膠體系及原位聚合離聚體增韌使復(fù)合體系形成穩(wěn)定互穿網(wǎng)絡(luò)，是解決相間相容性的新的研究方向。</span> </p><p><span style="font-size:14px;font-family:";">②POM的化學(xué)改性關(guān)鍵在于在合成過程中通過選擇共聚單體在分子鏈中引入多功能基團(tuán)，為進(jìn)一步的改性提供條件；調(diào)節(jié)共聚單體數(shù)量、優(yōu)化分子結(jié)構(gòu)的設(shè)計(jì)，合成系列化、功能化和高性能化POM。</span> 常州白色pom板價(jià)格POM板材價(jià)格分不同顏色也分國產(chǎn)還是進(jìn)口的。一般進(jìn)口的價(jià)格比國產(chǎn)的要貴一些，有些是按平方來和厚度來算。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="東莞求購pom棒材哪里有賣,pom" src="https://tyunfile.71360.com/UploadFile/szdtm01/637418365812858534/1158856.png"></div> <span style="font-size:14px;font-family:"">POM塑料板材</span><span style="font-size:14px;font-family:"">跟PE塑料板材的區(qū)別在哪？</span><span style="color:#E53333;font-size:14px;font-family:"">POM（聚甲醛樹脂）定義：</span><span style="font-size:14px;font-family:"">聚甲du醛是一種沒有側(cè)鏈、高密度、高結(jié)zhi晶性的線型聚合物。按其分子鏈中化學(xué)結(jié)構(gòu)的不同，可分為均聚甲醛和共聚甲醛兩種。兩者的重要區(qū)別是：均聚甲醛密度、結(jié)晶度、熔點(diǎn)都高，但熱穩(wěn)定性差，加工溫度范圍窄（約10℃），對酸堿穩(wěn)定性略低；而共聚甲醛密度、結(jié)晶度、熔點(diǎn)、強(qiáng)度都較低，但熱穩(wěn)定性好，不易分解，加工答蘆溫度范圍寬（約50℃），對酸堿穩(wěn)定性較好。是具有優(yōu)異的綜合性能的工程塑料。有良好的物理、機(jī)械和化學(xué)性能，尤其是有優(yōu)異的耐摩擦性能。俗稱賽鋼或奪鋼，為第三大通用塑料。適于制作減磨耐磨零件，傳動(dòng)零件，以及化工，儀表等零件。</span><span style="color:#E53333;font-size:14px;font-family:"">PE（聚乙烯簡稱PE）</span><span style="font-size:14px;font-family:"">聚乙烯（polyethylene ，簡稱PE）是乙烯經(jīng)聚合制得的一種熱塑性樹脂。在工業(yè)上，也包括乙烯與少量α-烯烴的共聚物。聚乙烯無臭，無毒，手感似蠟，具有優(yōu)良的耐低溫性能，化學(xué)穩(wěn)定性好，能耐大多數(shù)酸堿的侵蝕。常溫下不溶于一般溶劑，吸水性小，電絕緣性優(yōu)良。聚乙烯的租洞力學(xué)性能一清型帶般，拉伸強(qiáng)度較低，抗蠕變性不好，耐沖擊性好。聚乙烯可用吹塑、擠出、注射成型等方法加工，廣泛應(yīng)用于制造薄膜、中空制品、纖維和日用雜品等。</span> <p> <br /> </p><p style="text-indent:25px">pom塑料耐溫多少度？POM是結(jié)晶型塑料,密度為1.42g/cm3,它的鋼性很好,俗稱“賽鋼”。POM（聚甲醛）是一種光滑，有光澤，堅(jiān)硬且致密的材料，淡黃色或白色，可以在-50-110°C的溫度范圍內(nèi)長時(shí)間使用。它的耐磨性和自潤滑性也很出色，對大多數(shù)工程塑料而言，它具有良好的耐油性和抗過氧化物性能。非常耐酸，堿和紫外線輻射。熔點(diǎn)是：熔點(diǎn)175℃，軟化點(diǎn)：150℃，熱變形溫度HDT：155℃。總之，POM的高溫耐受性約為110℃，并且不超過軟化點(diǎn)。pom有良好的耐溶劑、耐油類、耐弱酸弱堿等性能。有很高的硬度鋼性，具有高度抗蠕變應(yīng)力松馳能力，自潤滑性.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="東莞求購pom棒材哪里有賣,pom" src="https://tyunfile.71360.com/UploadFile/szdtm01/637418365327809727/4930599.png"></div><p style="text-indent:25px"><span style="font-size:14px;font-family:";"> </span><span style="font-size:14px;font-family:";">POM（聚甲醛）板棒的甲醛的含量是否比其他工程塑料制成的板棒的高？</span><span style="font-size:14px;font-family:";">聚甲醛塑料的確會(huì)比其他工程塑料的甲醛含量要高。聚甲醛/POM是由甲醛聚合而成的一種工程塑料，甲醛是一種化工品，是聚合POM的單體質(zhì)料。聚甲醛塑料（顆粒狀），甲醛為液體狀。所以，實(shí)際上講，聚甲醛塑料里面是不含甲醛的。而其他工程塑料，比方***C，PBT,PPO等，其原料不是甲醛，聚合過程中也不存在甲醛。因此其他工程塑料也沒有甲醛成分。然則，實(shí)際上，聚甲醛在聚合生產(chǎn)的時(shí)刻，是不可能做獲得100%的聚合，仍有一定數(shù)目的單體甲醛的存在，而且在聚甲醛塑料寄存及前期注塑生產(chǎn)過程中，都會(huì)有一定量的甲醛釋放。所以說，聚甲醛的確是比其他工程塑料的甲醛含量更高。要降低聚甲醛塑料或其制品的甲醛含量，首先要選用高品格的聚甲醛質(zhì)料，味道越低越好，味道大，意味著甲醛含量高。聚甲醛制品比如pom板或者pom棒什么的注塑成型后發(fā)起在空闊地方寄存一段工夫，降低味道后在包裝。</span>聚甲bai醛的縮水率大是指材料型時(shí)尺寸不穩(wěn)定易變形。吸水率小是指其材料不易吸收水分。東莞求購pom棒材哪里有賣</p><p style="text-indent:25px">進(jìn)口POM棒相比國產(chǎn)POM來說，區(qū)別就是料更純一些，內(nèi)部雜質(zhì)更少，料的內(nèi)部無氣孔，而且是消除了應(yīng)力的。東莞求購pom棒材哪里有賣</p><p style="text-indent:25px"> 鑒別pom聚甲醛板棒的的真假：很多朋友，尤其是采購的朋友對物性了解甚少，很難分辨采購的pom原料是否是真品，在此多特瑪工程塑料的推薦2種方便快捷的辦法供各位朋友參考，取一些邊角料用如下方法進(jìn)行實(shí)驗(yàn)：1.燃燒氣味法：如果你手邊有打火機(jī)，請使用打火機(jī)點(diǎn)燃一顆，如果原料燃燒釋放出刺激性的甲醛氣味，則說明是聚甲醛。2，化學(xué)實(shí)驗(yàn)法：選取少量樣品放入試管中再加入4ml的濃硫酸加熱到70度持續(xù)10分鐘，觀察顏色，如果出現(xiàn)深紫色表示是聚甲醛。東莞求購pom棒材哪里有賣</p><p style="text-indent:25px">蘇州多特瑪工程塑料有限公司屬于橡塑的高新企業(yè)，技術(shù)力量雄厚。公司是一家有限責(zé)任公司企業(yè)，以誠信務(wù)實(shí)的創(chuàng)業(yè)精神、專業(yè)的管理團(tuán)隊(duì)、踏實(shí)的職工隊(duì)伍，努力為廣大用戶提供***的產(chǎn)品。公司始終堅(jiān)持客戶需求優(yōu)先的原則，致力于提供高質(zhì)量的POM板 POM棒，PA板 PA棒，PEEK板 PEEK棒，工程塑料聚甲醛。多特瑪工程塑料將以真誠的服務(wù)、創(chuàng)新的理念、***的產(chǎn)品，為彼此贏得全新的未來！</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/2704875.html</p></div></div></div></div></div><div id="7zsvb7a" class="page-right twoColRt"><div id="8njny8e" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="u8m7bs2" class="recomPic likePro"><a href="http://m.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(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="e7n4fg7" class="recomPic likePro"><a 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