性能簡介
一、 聚四氯乙烯，簡稱ITFE、F4：使用溫度-200-+260℃。
聚四氯乙烯具有非常優(yōu)良的耐蝕和耐熱性能，除熔金屬鋰、鉀、鈉、三氟化氯、高溫下的三氟化氧、高流速的液氟外，它幾乎可以抵抗所有化學(xué)介質(zhì)（包括濃硝酸和王水）它可以長期在230~260℃下操作，耐熱性超過大多數(shù)塑料。它有優(yōu)良的電性能、抗粘性和低摩擦系數(shù)。
二、 聚丙烯簡稱PP：使用溫度-14-+120℃。
聚丙烯是熱塑性塑料，耐蝕性和聚乙烯相似，且較優(yōu)。比重小，強(qiáng)度高于聚乙烯。常溫下耐沖擊性能良好，0℃以下變差 ，耐溫性高、在低應(yīng)力下可長期使用于110~120℃。因此廣泛用于聚乙烯和聚氯乙烯不適用的較高溫度的環(huán)境。其耐腐蝕性能，除濃硝酸、發(fā)煙硫酸、氯磺酸等強(qiáng)氧化性酸外，能耐大多數(shù)的有機(jī)和無機(jī)酸、堿和鹽，也適于在室外大氣中暴露（加入2﹪碳黑的品種）。對(duì)應(yīng)力腐蝕破裂的抗蝕性良好，但能被某些強(qiáng)有機(jī)溶劑破壞。
三、 聚乙烯簡稱PE，PO：使用溫度（低密度）-70-+60℃。
聚乙烯具有良好的耐蝕性。對(duì)非氧化性酸（如鹽酸、稀硫酸、氫氟酸）稀硝酸、堿和鹽溶液都有良好的耐蝕性，但不耐濃硝酸，濃硫酸和其它強(qiáng)氧化劑的腐蝕。對(duì)有機(jī)熔劑常溫下一般耐腐蝕性良好，但有些熔劑能使其溶脹，在外或內(nèi)應(yīng)力存在下。有些揮發(fā)性液體或蒸汽可使它產(chǎn)生應(yīng)力腐蝕破壞。
四、 鋼塑管附件
鋼塑管附件包括標(biāo)準(zhǔn)三通、四通、彎頭、異經(jīng)管等，它采用與鋼塑復(fù)合管相應(yīng)的材質(zhì)、尺寸和復(fù)合管配套供應(yīng)，并有相同的抗腐能力?；Q性、通用性能都很強(qiáng)。
One. Forgathers four vinyl chlorides,For short ITFE,F4;Uses temperature200-+will be 260℃ .
Forgather four fluorine ethylenes possess very fit erosion resisting and heatproof performance,Except melts metal lithium.Potassium,Sodium,Three fluorines melt chlorine’s three fluorines melt oxygen under high temperature,Outside high streamflow’s liquid fluorine,It almost can resist all chemistry carrier(lnclude thick nitric acid and aqua regia)It will can long-term 260℃urder operation at 230,Heat-resistance exceeds most plastics.It has fit electicity performance,Resist viscosity and low coefficient of friction.
Two,Polypropylene fors short PP .Uses temperature-14-+will be 120℃.Polypropylene is thermoplastic plastic.Erosion resisting sex and polyethylene similar.And compare excellence.Proportion small, lntension highers than polyethylene.Endures impact performance good under normal temperature,0℃will change poor.Endures wen xing highness,Can long-term use in 100 120℃at will be low stress under.So extensive be used for polyethylene and PVC inapplicable compare high temperature’s environment.It endures corrosion behavior.Except thick nitric acid,Sends smoke sulphuric acid,Chlorine sulfonic acid strong oxidizes sex sour outside.Ability most organic and mineral acid,Alkali and salt,Also appropriates to debunk in outdoor atmosphere(Joins 2％charcoals blak breed).Parallels stength corrode disruptive resist corrasion sex excellently,But canned was some strong organic solvent breakage.
Three,Polyethylene Jane PE,PO.Uses temperature(Low density)-70-+will be 60℃.
Polyethylene possesses fit erosion resisting sex.To not oxidizes sex sour(Is like hydrochloric acid,Rare sulphuric acid,Hydrofluoric acid)Rare nitric acid,Alkali and brine solution all have good erosion resisting sex,But not does endure thick nitric acid.Concentrated acid and other strong oxidant’s cauterization.To ordinary endures causiticity good under organic solvent normal temperature.But some solvent can make it dissolve bloated.Out or body stress exists under.Some valatile liquid or steam can make it bring forth stress cauterization breakage.
Four,Gang su guan accessory
Gang su guan accessory include standard san tong,Sitong,Elbow,Difference path tube,It adopts with steel model compound administer corresponding material quality,Size and compound tube form a complete set supply,And has same resist rotten ability.Exchange sex,Generality all very strong.
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