皇冠体育在线 　　PEGUANJIAGEBIJINSHUGUANDAOBIANYI，QIEZHONGLIANGYUQIXIANGBIYEGENGJIADEQING，YINCIBIANYUSHIGONG，GEXIANGXINGNENGDOUFEICHANGCHUSE，YINCISHIBIJIAOSHOUHUANYINGDEYIZHONGGUANCAI。JINLAIJINGCHANGYOUKEHUXUNWENZHEIZHONGGUANCAIWENDUSHIYONGFANWEISHIDUOSHAO，ZHEILIJIANDANDEHUIDADEYIXIA：

　　PE管是一种高分子材料，温度对其影响较大。温度过低将导致其变脆，抗冲击强度和断裂伸长率下降;相反，温度过高又会使聚乙烯材料耐压强度下降。一般聚乙烯材料脆化温度约为-80摄氏度，软化温度约为+120摄氏度。

皇冠体育在线 　　WOGUOGUIDINGPEGUANXITONGDEGONGZUOWENDUFANWEI：-20SHESHIDU~40SHESHIDU。

　　ZIWAIXIANZHANGQIZHAOSHE，HUIJIASUGUANDAOLAOHUA。RIZHAOFUSHELIANGDADAOYIDINGCHENGDUHUIMINGXIANJIANGDIGUANDAODEWULI、HUAXUEXINGNENG，YINCIPEGUANBUYIZHANGQICUNFANG。YUNSHUZHONGYAOFANGBAOSHAI，CUNFANGSHIYAODUIFANGYUKUFANGHUOPENGNEI，GUANCAICONGSHENGCHANDAOSHIYONGQI，CUNFANGSHIJIANBUYICHAOGUOYINIAN，GUANJIANBUYICHAOGUOLIANGNIAN。