一、產(chǎn)品特點(diǎn)及其應(yīng)用β(Beta)-PPH是一種高分子量、低熔指的均聚聚丙烯,由于該材料經(jīng)過β改性,具有均勻細(xì)膩的Beta晶型結(jié)構(gòu),使其不但具有優(yōu)良的耐化學(xué)性、耐高溫性以及良好的抗蠕變性,而且在低溫下還具有優(yōu)異的抗沖擊性。上世紀(jì)80年代β(Beta)-PPH材料就應(yīng)用于承壓管道系統(tǒng),目前使用情況良好。β(Beta)-PP-H管道性能特點(diǎn)還包括:優(yōu)良的抗腐蝕性、尤其突出的是耐長期蠕變性和抗應(yīng)力開裂性,優(yōu)異的耐壓性、耐表面磨損性和易焊接性(熔接性)等。PPH管三通模壓成型對(duì)焊式三通管件PPH對(duì)焊式三通管道質(zhì)量價(jià)格優(yōu)惠請(qǐng)咨詢江蘇晟明管閥件有限公司范先生性能參數(shù)序號(hào)項(xiàng)目要求1短期液壓強(qiáng)度(環(huán)應(yīng)力22Mpa,1h,20℃)不破裂,不滲漏2長期液壓強(qiáng)度(環(huán)應(yīng)力5.0Mpa,165h,95℃)不破裂,不滲漏3縱向收縮率(110℃),%1.34Charpy沖擊23℃,KJ/㎡50.05Charpy沖擊-20℃,KJ/㎡4.06熱變形溫度,℃96.07屈服應(yīng)力,MPa29.0管材規(guī)格公稱外徑公稱偏差0.4MPa0.6MPa0.8MPa1.0MPaSSSS250.32.7320.32.9400.43.7500.54.6630.64.75.8750.74.55.66.8900.93.55.46.78.21101.04.26.68.110.01251.24.87.49.211.41401.35.48.310.312.71601.56.29.511.814.61801.76.910.713.316.42001.87.711.914.718.22252.18.613.416.620.52502.39.614.818.422.72802.610.716.620.625.43152.912.118.723.228.63553.213.621.126.132.24003.615.323.729.436.34504.117.226.733.1—5004.519.129.736.8—5605.121.433.2——6305.724.137.4——長度5m 20mm