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id="ysz8oqx" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szdtm01/637418366206266763/2244651.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="fzwoahj" 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>杭州本色pom棒材,pom</p><p><span>***更新：</span>2020-12-31 02:20:21</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="smtvxpr" 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="8jgdfmt" class="page-proshow02"><p class="title">詳細說明</p><div id="kt2fdkr" class="box"><p><p> <span style="font-size:14px;font-family:""> POM板棒改性研究的技術路線：</span> </p> <p> <span style="font-size:14px;font-family:""> 1、填充增強改性將無機材料如Al2O3、氧化鎂、玻璃纖維、碳纖維、玻璃微珠、云母、滑石粉、碳酸鈣、白炭黑、鈦酸鉀等通過熔融共混加入到聚甲醛中，從而提高聚甲醛的強度、剛度，杭州本色pom棒材、硬度、熱變形溫度以及尺寸穩(wěn)定性。填充增強類聚甲醛主要應用于制備機械結(jié)構(gòu)復雜、薄形精密零件及工程制品。</span> </p> <p> <span style="font-size:14px;font-family:""> 2、增韌共混改性以熱塑性聚氨酯（TPU），杭州本色pom棒材、丁腈橡膠（NBR）、改性聚烯烴、聚酰胺、木質(zhì)纖維素等作為彈性增韌體，采用機械共混和接枝共聚的方法制成超韌性POM合金。</span> </p> <p> <span style="font-size:14px;font-family:""> 3，杭州本色pom棒材、功能化改性提高摩擦磨損性能在聚甲醛樹脂中加入有機油或硅油、聚四氟乙烯（PTFE）或二硫化鉬，可以達到降**品表面摩擦系數(shù)及磨損率的作用。潤滑聚甲醛適用于機械、電子電器用零件的傳動部位材料，如齒輪、滾輪、凸輪、連桿類制品。①添加PTFE、PE、UHMWPE等自身摩擦系數(shù)較低的結(jié)晶性高分子材料。②添加玻纖、碳纖等纖維狀材料。③添加硅油、礦物油、油脂等潤滑油及潤滑脂類。④添加MoS2、石墨等無機粉類潤滑材料。⑤利用接枝、嵌段等手段在POM分子鏈上引入具有潤滑性的鏈段。提高聚甲醛的耐候性在聚甲醛中加入抗氧劑及光穩(wěn)定劑可以提高聚甲醛的耐候性。</span> pom板棒自從問世以來一直深受各大廠家的歡迎。杭州本色pom棒材</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州本色pom棒材,pom" src="https://tyunfile.71360.com/UploadFile/szdtm01/637418366206266763/2244651.png"></div><p> <span style="font-size:14px;font-family:"Microsoft YaHei";"> 為了保證pom產(chǎn)品能夠正常投入生產(chǎn)，</span><span style="font-size:14px;font-family:"Microsoft YaHei";">低變形的POM板棒往往</span><span style="font-size:14px;font-family:"Microsoft YaHei";">是很多采購們的必選項，但是工廠在生產(chǎn)的過程中，</span><span style="font-size:14px;font-family:"Microsoft YaHei";">POM 原料</span><span style="font-size:14px;font-family:"Microsoft YaHei";">產(chǎn)品的收縮率很大，</span><span style="font-size:14px;font-family:"Microsoft YaHei";">注塑產(chǎn)品時因收縮導致變形的現(xiàn)象時長發(fā)生，在這里，多特瑪?shù)男【幗o提幾點建議</span><span style="font-size:14px;font-family:"Microsoft YaHei";">可以減小變形，主要</span><span style="font-size:14px;font-family:"Microsoft YaHei";">從模具、注塑工藝等方面解決。</span><span style="font-size:14px;font-family:"Microsoft YaHei";">*供參考：</span> </p><p><span style="font-family:"Microsoft YaHei";font-size:14px;">模具方面：</span> </p><p><span style="font-family:"Microsoft YaHei";font-size:14px;">（</span><span style="font-family:"Microsoft YaHei";font-size:14px;">1）制件的厚度、質(zhì)量要均勻。</span> </p><p><span style="font-size:14px;font-family:"Microsoft YaHei";">（2）冷卻系統(tǒng)bai的設計要使模具型腔各部分溫度均勻，澆注系統(tǒng)要使料流對稱避免因流動方向、收縮率不同而造成翹曲，適當加粗較難成型部份的分流道、主流道，盡量消除型腔內(nèi)的密度差、壓力差、溫度差。</span> </p><p><span style="font-size:14px;font-family:"Microsoft YaHei";">（3）制件厚薄的過渡區(qū)及轉(zhuǎn)角要足夠圓滑，要有良好的脫模性，如增加脫模余度，改善模面的拋光，頂出系統(tǒng)要保持平衡。</span> </p><p><span style="font-size:14px;font-family:"Microsoft YaHei";">（4）排氣要良好。</span> </p><p><span style="font-size:14px;font-family:"Microsoft YaHei";">（5）增加制件壁厚或增加抗翹曲方向，由加強筋來增強制件抗翹曲能力。</span> </p><p><span style="font-size:14px;font-family:"Microsoft YaHei";">注塑工藝</span><span style="font-size:14px;font-family:"Microsoft YaHei";">方面：</span> </p><p><span style="font-size:14px;font-family:"Microsoft YaHei";">（1）注射壓力太高，保壓時間太長，熔料溫度太低速度太快會造成內(nèi)應力增加而出現(xiàn)翹曲變形。</span> </p><p><span style="font-size:14px;font-family:"Microsoft YaHei";">（2）模具溫度過高，冷卻時間過短，使脫模時的制件過熱而出現(xiàn)頂出變形。</span> </p><p><span style="font-size:14px;font-family:"Microsoft YaHei";">（3）在保持少量充料量下減少螺桿轉(zhuǎn)速和背壓降低密度來限制內(nèi)應力的產(chǎn)生。</span> </p><p><span style="font-size:14px;font-family:"Microsoft YaHei";">（4）必要時可對容易翹曲變形的制件進行模具軟性定形或脫模后進行退火處理。</span> 鎮(zhèn)江高硬度pom棒銷售廠家聚甲醛的疲勞強度隨溫度的升高而降低，而且對缺口敏感，有缺口時的疲勞強度幾乎比無缺口時小1/2。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州本色pom棒材,pom" src="https://tyunfile.71360.com/UploadFile/szdtm01/637418366489743506/164931.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> </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。POM具有較好的綜合性能，在熱塑性塑料中是非常堅硬的，在塑料材料力學中性能尤其接近金屬，俗稱賽鋼。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州本色pom棒材,pom" src="https://tyunfile.71360.com/UploadFile/szdtm01/637418365473200368/2958693.png"></div><p> 怎樣區(qū)分POM板棒是均聚還是共聚？POM棒/板一般有以下幾種型號：POM-C/H（黑色、白色）：分別表示POM共聚物和POM均聚物，POM共聚物熔點低、熱穩(wěn)定性、耐化學腐蝕性、流動特性、耐水解、耐強堿和熱力氧化降級、加工性優(yōu)于均聚甲醛。POM均聚物結(jié)晶度高、搞蠕變性、熱膨脹率更低、耐磨性、機械強度、剛性、熱變形溫度等比共聚甲醛好。（目前市面上POM半成品普遍使用POM-C共聚物）POM-H+PTFE（深棕色）：POM+TF棒/板是用杜邦POM（DELRIN）原料加PTFE（鐵氟龍）纖維擠出而成。它保留了POM-H的大多數(shù)固有強度。因填加PTFE（鐵氟龍）纖維而有某些性能改變，稍軟，剛性小，比純的聚甲醛樹脂更滑。與純POM板比較，該材料潤滑更好。用POM-H+PTFE制造的軸承摩擦系數(shù)中等，耐磨，并且基本無蠕動現(xiàn)象。由于均聚物里共聚成分的插入,除了熱穩(wěn)定性外,其它性質(zhì)也發(fā)生了一些變化.一般,共聚成分是多一個碳元素的氧化乙烯基-CH2CH2O-.雖然因引入的比例而異,但是可以說,共聚甲醛的性質(zhì)是在甲醛均聚物中加入氧化乙烯聚合物而共同形成的.下面,對甲醛共聚物與均聚物標準品級的物性進行一下比較.雖然在短期機械特性方面,有均聚物高于共聚物的傾向,但在長期機械特性方面，共聚物則比均聚物降低的比例小。 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，具有高度抗蠕變應力松馳能力，自潤滑性.常州加纖pom板材生產(chǎn)廠家</p><p style="text-indent:25px">POM均聚物結(jié)晶度高、搞蠕變性、熱膨脹率更低、耐磨性、機械強度、剛性、熱變形溫度等比共聚甲醛好。杭州本色pom棒材</p><p> <span style="font-family:"Microsoft YaHei";font-size:16px;">經(jīng)常很多人問塑料pom板和塑料pp板如何區(qū)分，除了常使用的聞，看和摸以外，書面說明的區(qū)別主要有：</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">1、性質(zhì)不同：聚丙烯（PP）擠出板材是PP樹脂添加入各種功能助劑經(jīng)擠出、壓光、冷卻、切割等工藝過程而制成的塑料板材。POM聚甲醛是一種沒有側(cè)鏈、高密度、高結(jié)晶性的線型聚合物。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">2、特點不同：POM塑料對酸堿穩(wěn)定性略低；而共聚甲醛密度、結(jié)晶度、熔點、強度都較低，但熱穩(wěn)定性好。PP塑料板是一種半結(jié)晶性材料，比PE要更堅硬并且有更高的熔點。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">3、性能不同：PP的強度隨著乙烯含量的增加而增大。PP的維卡軟化溫度為150℃。POM塑料主要增強材料為玻璃纖維、玻璃球或碳纖維等，并且玻璃纖維很常用，增強后的力學性能可提高2～3倍，熱變形溫度提高50℃以上。</span> 杭州本色pom棒材</p><p style="text-indent:25px">蘇州多特瑪工程塑料有限公司致力于橡塑，是一家生產(chǎn)型的公司。多特瑪工程塑料致力于為客戶提供良好的POM板 POM棒，PA板 PA棒，PEEK板 PEEK棒，工程塑料聚甲醛，一切以用戶需求為中心，深受廣大客戶的歡迎。公司秉持誠信為本的經(jīng)營理念，在橡塑深耕多年，以技術為先導，以自主產(chǎn)品為重點，發(fā)揮人才優(yōu)勢，打造橡塑良好品牌。多特瑪工程塑料立足于全國市場，依托強大的研發(fā)實力，融合前沿的技術理念，飛快響應客戶的變化需求。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/2635727.html</p></div></div></div></div></div><div id="sr8izln" class="page-right twoColRt"><div id="pzrjqsz" class="box01 margin10 clearfix"><h3><a 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