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O型圈及星型圈系列

純聚四氟乙烯O型圈

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產(chǎn)品編號

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O型圈及星型圈系列

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

1

聚四氟乙烯（PTFE）O形圈的形狀與一般合成橡膠O形圈相同的。全程無(wú)需模具全數控車(chē)削加工而成，任意規格尺寸、任意數量都可滿(mǎn)足客戶(hù)需求，這種O型圈常用于強酸強堿腐蝕和高溫或者低溫的介質(zhì)密封，替代氟膠圈和其他橡膠圈不能耐高壓，不耐腐蝕和不耐高溫的介質(zhì)密封，廣泛用于航天，食品，化學(xué)和醫療機械領(lǐng)域。

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參數

聚四氟乙烯的特征

聚四氟乙烯（簡(jiǎn)稱(chēng)PTFE或F4）是當今世界最耐腐蝕的材料之一“塑料王”是聚四氟乙烯的俗稱(chēng)，它是一種耐腐蝕性最好的塑料。它不受已知的酸、堿、鹽、氧化劑的腐蝕，就是最厲害的王水（濃硫酸和濃硝酸的混合物）也對它無(wú)可奈何，因此得名塑料王。它可以在-150～＋250℃之間正常使用，而這是其他塑料做不到的。聚四氟乙烯的特點(diǎn)是很難融化，流動(dòng)性很差，無(wú)法用擠出機加工，一般用燒結法。聚四氟乙烯的耐磨性和自潤滑性都很好，是一種高級工程塑料。聚四氟乙烯呈白色，比重很大，也不燃燒。加熱到250℃以上也不熔化，這是它和尼龍的區別。

聚四氟乙烯的優(yōu)勢

● 非常地耐高低溫，工作溫度可以達到達250℃。即使溫度下降到-196℃，也可保持5%的伸長(cháng)率；
● 耐腐蝕、能耐強酸強堿、各種有機溶劑；
● 高潤滑度，是固體材料中摩擦系數較低者；
● 不粘附，擁有固體材料中較小的表面張力；
● 電絕緣體性質(zhì)，可以抵抗1500伏高壓電。

最后，在設計方面建議PTFE密封圈的彈性較小，因此在選擇尺寸規格時(shí)，應該與（活塞或內孔）公稱(chēng)直徑相匹配。軸向安裝比較容易，徑向安裝則推薦使用分離式溝槽。

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<p><span style="line-height:1.8"><span style="font-size:16px"><span style="font-family:microsoft yahei"><span style="color:rgba(255,255,255,0.6)">網(wǎng)址：</span><a href="http://www.sousuohou.com"><span style="color:rgba(255,255,255,0.6)">http://www.sousuohou.com</span></a></span></span></span></p>
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<p><span style="line-height:1.8"><span style="font-size:16px"><span style="font-family:microsoft yahei"><span style="font-family:arial,helvetica,sans-serif"><span style="color:rgba(255,255,255,0.6)">電話(huà)：</span></span></span></span></span><span style="line-height:1.8"><span style="font-size:16px"><span style="font-family:microsoft yahei"><span style="font-family:arial,helvetica,sans-serif"><a href="tel:0574-88143305"><span style="color:rgba(255,255,255,0.6)">0574-88143305</span></a><span style="color:rgba(255,255,255,0.6)">  </span><a href="tel:0574-88143306"><span style="color:rgba(255,255,255,0.6)">88143306 </span></a></span></span></span></span></p>

<p><span style="line-height:1.8"><span style="font-size:16px"><span style="font-family:microsoft yahei"><span style="font-family:arial,helvetica,sans-serif"><span style="color:rgba(255,255,255,0.6)">E-mail：</span><a href="mailto:sales@yukaseals.com"><span style="color:rgba(255,255,255,0.6)">sales@yukaseals.com</span></a><br />
<span style="color:rgba(255,255,255,0.6)">傳真：</span><a href="tel:0574-88143307"><span style="color:rgba(255,255,255,0.6)">0574-88143307</span></a></span></span></span></span></p>
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