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聚氨酯泡沫是否发满，有任何质量问题以便直接检验

作者：　来源：　日期：2018-09-29 10:58:22

聚(ju)氨酯(zhi)泡沫是否发满，有任何质(zhi)(zhi)量问(wen)题以便直(zhi)(zhi)接检验。第三(san)层(ceng)：玻璃钢(gang)保(bao)(bao)(bao)(bao)护(hu)层(ceng)用(yong)(yong)(yong)机械(xie)(xie)湿法缠绕研发设计而(er)成(cheng)(cheng)。其作(zuo)(zuo)用(yong)(yong)(yong)一(yi)个方面保(bao)(bao)(bao)(bao)护(hu)聚(ju)氨酯(zhi)保(bao)(bao)(bao)(bao)温(wen)(wen)层(ceng)免遭机械(xie)(xie)硬物破坏，二是防(fang)腐(fu)防(fang)水，它的(de)(de)(de)耐(nai)气候性(xing)，耐(nai)酸性(xing)，耐(nai)海水性(xing)较好，不(bu)过，树(shu)(shu)脂(zhi)必(bi)须(xu)用(yong)(yong)(yong)306#，191#，196#等(deng)刚性(xing)和半刚性(xing)不(bu)饱和树(shu)(shu)脂(zhi)。第二层(ceng)：聚(ju)氨酯(zhi)保(bao)(bao)(bao)(bao)温(wen)(wen)层(ceng)玻璃纤维及布必(bi)须(xu)用(yong)(yong)(yong)白金钳埚或池(chi)窑拉(la)丝(si)而(er)成(cheng)(cheng)的(de)(de)(de)中低(di)(di)碱(jian)纤维纱，不(bu)允许使用(yong)(yong)(yong)土埚拉(la)丝(si)而(er)成(cheng)(cheng)的(de)(de)(de)含碱(jian)量较高的(de)(de)(de)纤维纱，以确保(bao)(bao)(bao)(bao)产(chan)品(pin)质(zhi)(zhi)量1，蒸气直(zhi)(zhi)埋(mai)保(bao)(bao)(bao)(bao)温(wen)(wen)管(guan)(guan)(guan)接口处的(de)(de)(de)结构(gou)与管(guan)(guan)(guan)网的(de)(de)(de)直(zhi)(zhi)管(guan)(guan)(guan)段(duan)结构(gou)应相同。，工作(zuo)(zuo)钢(gang)管(guan)(guan)(guan)的(de)(de)(de)保(bao)(bao)(bao)(bao)温(wen)(wen)层(ceng)选用(yong)(yong)(yong)优(you)质(zhi)(zhi)保(bao)(bao)(bao)(bao)温(wen)(wen)材料，保(bao)(bao)(bao)(bao)温(wen)(wen)效果好。5，工作(zuo)(zuo)钢(gang)管(guan)(guan)(guan)保(bao)(bao)(bao)(bao)温(wen)(wen)层(ceng)与外(wai)套钢(gang)管(guan)(guan)(guan)之(zhi)间留有 10~ 20mm 左右的(de)(de)(de)间隙，既可(ke)直(zhi)(zhi)到进(jin)一(yi)步保(bao)(bao)(bao)(bao)温(wen)(wen)跟(gen)功能。又是直(zhi)(zhi)埋(mai)管(guan)(guan)(guan)道(dao)极为通畅的(de)(de)(de)排(pai)潮(chao)通道(dao)，使排(pai)潮(chao)管(guan)(guan)(guan)真(zhen)正(zheng)起到及时(shi)排(pai)潮(chao)与用(yong)(yong)(yong)处，同时(shi)起到信(xin)号管(guan)(guan)(guan)跟(gen)特质(zhi)(zhi)；或将其抽成(cheng)(cheng)低(di)(di)真(zhen)空，可(ke)更(geng)有效地保(bao)(bao)(bao)(bao)温(wen)(wen)并(bing)环比降低(di)(di)外(wai)套管(guan)(guan)(guan)内壁腐(fu)蚀。硬质(zhi)(zhi)聚(ju)氨酯(zhi)泡沫保(bao)(bao)(bao)(bao)温(wen)(wen)钢(gang)管(guan)(guan)(guan)用(yong)(yong)(yong)高压发泡机在钢(gang)管(guan)(guan)(guan)于特制钢(gang)模具之(zhi)间形(xing)成(cheng)(cheng)的(de)(de)(de)空腔中注入硬质(zhi)(zhi)聚(ju)氨酯(zhi)泡沫塑料原液而(er)成(cheng)(cheng)。即俗(su)称的(de)(de)(de)“模具发泡工艺”。