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聚氨酯泡沫是否發滿,有任何質量問題以便直接檢驗
聚(ju)(ju)(ju)氨(an)(an)酯(zhi)泡沫是否發(fa)滿(man),有(you)任何質(zhi)量(liang)問(wen)題以(yi)便直(zhi)(zhi)(zhi)接(jie)檢驗。第(di)三(san)層(ceng)(ceng):玻璃鋼(gang)(gang)保(bao)(bao)(bao)(bao)護(hu)層(ceng)(ceng)用(yong)機(ji)(ji)械(xie)濕法纏繞研(yan)發(fa)設(she)計而成(cheng)。其作用(yong)一個方面保(bao)(bao)(bao)(bao)護(hu)聚(ju)(ju)(ju)氨(an)(an)酯(zhi)保(bao)(bao)(bao)(bao)溫(wen)(wen)層(ceng)(ceng)免遭(zao)機(ji)(ji)械(xie)硬(ying)物破壞,二是防腐(fu)防水,它的(de)(de)耐(nai)氣候(hou)性,耐(nai)酸性,耐(nai)海水性較(jiao)好(hao),不(bu)過,樹脂(zhi)必須用(yong)306#,191#,196#等剛性和半(ban)剛性不(bu)飽和樹脂(zhi)。第(di)二層(ceng)(ceng):聚(ju)(ju)(ju)氨(an)(an)酯(zhi)保(bao)(bao)(bao)(bao)溫(wen)(wen)層(ceng)(ceng)玻璃纖(xian)維(wei)及布(bu)必須用(yong)白(bai)金鉗堝或池窯拉(la)絲而成(cheng)的(de)(de)中低堿(jian)纖(xian)維(wei)紗(sha)(sha),不(bu)允許使(shi)用(yong)土(tu)堝拉(la)絲而成(cheng)的(de)(de)含堿(jian)量(liang)較(jiao)高的(de)(de)纖(xian)維(wei)紗(sha)(sha),以(yi)確(que)保(bao)(bao)(bao)(bao)產品質(zhi)量(liang)1,蒸氣直(zhi)(zhi)(zhi)埋保(bao)(bao)(bao)(bao)溫(wen)(wen)管(guan)(guan)接(jie)口處的(de)(de)結構與管(guan)(guan)網(wang)的(de)(de)直(zhi)(zhi)(zhi)管(guan)(guan)段結構應相同(tong)。,工作鋼(gang)(gang)管(guan)(guan)的(de)(de)保(bao)(bao)(bao)(bao)溫(wen)(wen)層(ceng)(ceng)選用(yong)優(you)質(zhi)保(bao)(bao)(bao)(bao)溫(wen)(wen)材料(liao),保(bao)(bao)(bao)(bao)溫(wen)(wen)效果好(hao)。5,工作鋼(gang)(gang)管(guan)(guan)保(bao)(bao)(bao)(bao)溫(wen)(wen)層(ceng)(ceng)與外套鋼(gang)(gang)管(guan)(guan)之間留有(you) 10~ 20mm 左右的(de)(de)間隙(xi),既可直(zhi)(zhi)(zhi)到(dao)進一步保(bao)(bao)(bao)(bao)溫(wen)(wen)跟功能。又是直(zhi)(zhi)(zhi)埋管(guan)(guan)道極為通暢的(de)(de)排(pai)潮(chao)通道,使(shi)排(pai)潮(chao)管(guan)(guan)真正起到(dao)及時(shi)排(pai)潮(chao)與用(yong)處,同(tong)時(shi)起到(dao)信(xin)號管(guan)(guan)跟特質(zhi);或將其抽(chou)成(cheng)低真空,可更有(you)效地保(bao)(bao)(bao)(bao)溫(wen)(wen)并環(huan)比(bi)降低外套管(guan)(guan)內壁腐(fu)蝕(shi)。硬(ying)質(zhi)聚(ju)(ju)(ju)氨(an)(an)酯(zhi)泡沫保(bao)(bao)(bao)(bao)溫(wen)(wen)鋼(gang)(gang)管(guan)(guan)用(yong)高壓(ya)發(fa)泡機(ji)(ji)在鋼(gang)(gang)管(guan)(guan)于特制(zhi)鋼(gang)(gang)模具之間形成(cheng)的(de)(de)空腔中注入硬(ying)質(zhi)聚(ju)(ju)(ju)氨(an)(an)酯(zhi)泡沫塑(su)料(liao)原液而成(cheng)。即(ji)俗稱的(de)(de)“模具發(fa)泡工藝”。
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