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src="https://tyunfile.71360.com/UploadFile/szdtm01/637418366566432764/56627.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="hlmiza8" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szdtm01/637418366566432764/56627.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="uip3u2i" 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(chǎn)品關鍵詞：</span>上海高硬度pom板棒批發(fā),pom</p><p><span>***更新：</span>2020-12-16 00:35:29</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="r8jhn2s" 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: </span>0512-62381302</p><p><span>地址: </span>中國(江蘇)自由貿(mào)易試驗區(qū)蘇州片區(qū)蘇州啟月街288號1商幢2-1005室</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="nwcoact" class="page-proshow02"><p class="title">詳細說明</p><div id="qpgxo8u" class="box"><p><p style="text-indent:25px"><span style="font-size:14px;font-family:";"> POM原料注塑成pom板棒過程中</span><span style="font-size:14px;font-family:";">對溫度要求的注意事項：</span><span style="font-size:14px;font-family:";">POM不易吸濕,吸水率為0.22～0.25%,在濕潤的環(huán)境中尺寸穩(wěn)定性好,其收縮率為2.1%(較大),注塑時尺寸較難控制,熱變形溫度為172℃，上海高硬度pom板棒批發(fā),聚甲醛有均聚甲醛兩種,性能不同(均聚甲醛耐溫性好一點)。留意事項:生產(chǎn)應繼續(xù)進行，若停機，應排空料筒中殘余料，以避免再升溫時材料分解及制品黑點產(chǎn)生。POM的成型溫度不許可超過240℃，在此溫度下物料很快會分解。物料不可在190℃以上的料筒內(nèi)停止時間太長，否則也會引起物料分解。在包管制品格量和熔體活動性的環(huán)境下，上海高硬度pom板棒批發(fā)，應盡量選用較低的成型溫度和較短的成型周期，上海高硬度pom板棒批發(fā)。POM制品的后處理是以空氣或油作為介質進行的。溫度為140~150℃，時間3~5h。</span>pom優(yōu)點1、具高機械強度和剛性 2、比較高的疲勞強度 3、環(huán)境抵抗性、耐有機溶劑性佳 4、耐反覆沖擊性強。上海高硬度pom板棒批發(fā)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海高硬度pom板棒批發(fā),pom" src="https://tyunfile.71360.com/UploadFile/szdtm01/637418366566432764/56627.png"></div> <span style="font-size:14px;font-family:""> po</span><span style="font-size:14px;font-family:"">m材料加工成pom棒材</span><span style="font-size:14px;font-family:"">怎么加工不變形?</span><span style="font-size:14px;font-family:"">加工前退火。退火步驟如下：POM產(chǎn)品退火步驟：</span> <p> <span style="font-size:14px;font-family:"">1.插入電烤箱的電源；</span> </p> <p> <span style="font-size:14px;font-family:"">2.打開電源開關；</span> </p> <p> <span style="font-size:14px;font-family:"">3.將溫度調(diào)節(jié)到160℃；</span> </p> <p> <span style="font-size:14px;font-family:"">4.達到設定溫度后，將產(chǎn)品放入爐內(nèi)；</span> </p> <p> <span style="font-size:14px;font-family:"">5.保持時間會隨著所加工工件的厚度而增加，這可以在相關產(chǎn)品的過程文檔中看到。當工藝工程師計算產(chǎn)品的保持時間時，將加工零件的厚度（在工件壁厚的**厚部分測量，以毫米為單位）乘以每1 MM 5分鐘，得出的小于1 MM為1毫米例如，如果工件的厚度為5.5MM，則保持時間為30 + 6 * 5 = 60分鐘。等等。 6.打開電烤箱門，取出產(chǎn)品，然后風冷至室溫。</span><span style="font-size:14px;font-family:""></span> 揚州pom板棒供應商家自問世以來，POM已經(jīng)廣泛應用于電子電氣、機械、儀表、日用輕工、汽車、建材、農(nóng)業(yè)等領域。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海高硬度pom板棒批發(fā),pom" src="https://tyunfile.71360.com/UploadFile/szdtm01/637418365889743358/844351.png"></div><p> <span style="font-size:14px;font-family:";"> <span style="font-size:14px;font-family:";"> </span></span><span style="font-size:14px;font-family:";">pom材料和尼龍材料之間如何區(qū)分和如何選用？</span> </p> <p> <span style="font-size:14px;font-family:";"> 在區(qū)分的時候：</span> </p> <p> <span style="font-size:14px;font-family:";"> </span> </p> <p> <span style="font-size:14px;font-family:";">1.顏色不同：尼龍本色為象牙色，POM本色為白色。</span> </p> <p> <span style="font-size:14px;font-family:";">2.成分不同：POM是合成樹脂中的一種，又名聚甲醛樹脂、POM塑料、賽鋼料等；尼龍是聚酰胺纖維（錦綸）的一種俗稱，可制成長纖或短纖。</span> </p> <p> <span style="font-size:14px;font-family:";"> 在選用的時候：</span> </p> <p> 加工尺寸穩(wěn)定性方面：POM好于尼龍； </p> <p> <span style="font-family:";font-size:14px;">2.在潮濕環(huán)境下：尼龍吸水性大尺寸會變形；</span> </p> <p> <span style="font-family:";font-size:14px;">3.在材料強度方面：尼龍強度好；</span> </p> <p> <span style="font-family:";font-size:14px;">4.密度：尼龍是1.14，POM是1.4；</span> </p> <p> <span style="font-family:";font-size:14px;">5.在高耐高溫上：尼龍好，比較高可到120度；</span> </p> <p> <span style="font-family:";font-size:14px;">6.在摩擦系數(shù)方面：POM??；</span> </p> <p> <span style="font-family:";font-size:14px;">7.在耐沖擊強度方面：POM好；</span> </p> <p> <span style="font-family:";font-size:14px;">8.在耐磨性方面：POM好。</span> </p> <p> <span style="font-family:";font-size:14px;">總之，尼龍吸水大耐磨一般強度好耐溫好！POM剛性好耐磨好尺寸穩(wěn)定沖擊好！</span> </p><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晶，生成尺寸較大的球晶，當材料受到?jīng)_擊時，這些尺寸較大的球晶容易形成應力集中點，造成材料的破壞，所以POM缺口敏感性大，缺口沖擊強度低，成型收縮率高，制品易產(chǎn)生內(nèi)應力，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，為了更好地適應高速、高壓、高溫、高負荷等苛刻的工作環(huán)境，進一步擴大POM的應用范圍，需進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改性研究的關鍵：</span> </p><p><span style="font-size:14px;font-family:";">①POM的物理改性關鍵在于復合體系相間的相容性，應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合體系形成穩(wěn)定互穿網(wǎng)絡，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的化學改性關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，為進一步的改性提供條件；調(diào)節(jié)共聚單體數(shù)量、優(yōu)化分子結構的設計，合成系列化、功能化和高性能化POM。</span> POM板是一種表面光滑，有光澤的硬而致密的材料，淡黃或白色，可在-40- 100°C溫度范圍內(nèi)長期使用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海高硬度pom板棒批發(fā),pom" src="https://tyunfile.71360.com/UploadFile/szdtm01/637418366248884051/1177569.png"></div><p> <span style="font-size:16px;font-family:"Microsoft YaHei";">POM板材的擠出成型工藝：包括如下步驟：步驟1、成型前準備，包括：物料準備：將POM料與色母料按100:3.2的重量比例混合均勻；設備調(diào)整：將模具的分流壓縮區(qū)按進料口至擠出口方向分為前區(qū)與后區(qū)，將所述前區(qū)、后區(qū)同時加熱至以下各設定溫度：前區(qū)165℃～175℃，后區(qū)160℃～170℃，然后恒溫半小時；當所述前區(qū)、后區(qū)的溫度上升至各設定溫度的四分之三時，將料筒沿進料和輸出方向分為三個區(qū)，依次為熔融區(qū)、熔體輸送區(qū)、固體輸送區(qū)，對上述三個區(qū)加熱至以下各設定溫度：180℃～185℃，175℃～180℃，170℃～175℃，然后恒溫半小時；啟動主機，開動螺桿，調(diào)節(jié)螺桿轉速為3～4轉每分鐘；步驟2、塑化排氣：將混合好的物料加入料斗，使物料通過料斗進入料筒內(nèi)并在料筒內(nèi)塑化成熔體，塑化產(chǎn)生的氣體通過料筒上設計的排氣孔排出；步驟3、擠出成型：熔體進入模具型腔并從模具口擠出成型，調(diào)節(jié)螺桿轉速為10～12轉每分鐘，調(diào)節(jié)模具型腔內(nèi)壓力使熔體緊貼模具定徑內(nèi)壁；步驟4、切板：將冷卻成型的制品進行切割；步驟5、堆板：將切割好的制品放置于堆板架上；步驟6、烘烤：將堆板架上的制品放入烤箱烘烤。</span> POM板內(nèi)應力大，為防止應力變形，加工前需經(jīng)過消除內(nèi)應力處理，防止板材彎曲變形。揚州pom板棒供應商家</p><p style="text-indent:25px">POM塑料粒子通過擠出機高溫擠出，經(jīng)過相應的模具口擠出得到不同厚度的板材。上海高硬度pom板棒批發(fā)</p><p><span style="font-family:"Microsoft YaHei";font-size:14px;"> </span><span style="font-family:"Microsoft YaHei";font-size:14px;">POM塑料板棒</span><span style="font-family:"Microsoft YaHei";font-size:14px;">有哪些優(yōu)缺點及領域應用？</span> </p><p><span style="font-family:"Microsoft YaHei";font-size:14px;">一、熱塑性塑料之聚甲醛POM塑料板棒</span><span style="font-family:"Microsoft YaHei";font-size:14px;">的優(yōu)點:</span><span style="font-family:"Microsoft YaHei";font-size:14px;"></span> </p><p><span style="font-family:"Microsoft YaHei";font-size:14px;">1.抗拉強度較一般尼</span><span style="font-family:"Microsoft YaHei";font-size:14px;">龍高,耐疲勞,耐蠕變</span> </p><p><span style="font-family:"Microsoft YaHei";font-size:14px;">2.尺寸穩(wěn)定性好；</span> </p><p><span style="font-family:Microsoft YaHei;"><span style="font-family:"Microsoft YaHei";font-size:14px;">3.吸水性比尼龍小</span><span style="font-family:"Microsoft YaHei";font-size:14px;"> ；</span></span> </p><p><span style="font-family:"Microsoft YaHei";font-size:14px;">4.介電性好；</span> </p><p><span style="font-family:"Microsoft YaHei";font-size:14px;">5.可在120℃正常使用；</span> </p><p><span style="font-family:"Microsoft YaHei";font-size:14px;">6.摩擦系數(shù)??；</span> </p><p><span style="font-family:"Microsoft YaHei";font-size:14px;">7.彈性極好,類似彈簧作用。</span> </p><p><span style="font-family:"Microsoft YaHei";font-size:14px;">二、熱塑性塑料之聚甲醛POM塑料的缺點:</span> </p><p><span style="font-family:"Microsoft YaHei";font-size:14px;"> </span> </p><p>· 不耐酸，不耐強堿</p><p>· 不耐太陽光紫外線的輻射</p><p>· 非自滅性，不能近火。</p><p>熱塑性塑料之聚甲醛POM塑料的應用：耐磨傳動受力零件及減摩bai潤滑零件各種齒輪、軸承、軸套、保持架，汽車、農(nóng)機、水暖零件等。上海高硬度pom板棒批發(fā)</p><p style="text-indent:25px">蘇州多特瑪工程塑料有限公司位于中國(江蘇)自由貿(mào)易試驗區(qū)蘇州片區(qū)蘇州啟月街288號1商幢2-1005室，交通便利，環(huán)境優(yōu)美，是一家生產(chǎn)型企業(yè)。公司致力于為客戶提供安全、質量有保證的良好產(chǎn)品及服務，是一家有限責任公司企業(yè)。公司始終堅持客戶需求優(yōu)先的原則，致力于提供高質量的POM板 POM棒，PA板 PA棒，PEEK板 PEEK棒，工程塑料聚甲醛。多特瑪工程塑料自成立以來，一直堅持走正規(guī)化、專業(yè)化路線，得到了廣大客戶及社會各界的普遍認可與大力支持。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2418327.html</p></div></div></div></div></div><div id="vpbxtkv" class="page-right twoColRt"><div id="h8qmypg" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3qwsjvc" 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" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div id="tswsja8" class="recomPic likePro"><a 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