巖棉管中水分含有的種類

　　巖(yan)(yan)棉(mian)(mian)(mian)(mian)纖(xian)(xian)維(wei)(wei)(wei)中(zhong)含(han)有(you)兩種(zhong)水(shui)(shui)(shui)(shui)，一(yi)(yi)件是吸附水(shui)(shui)(shui)(shui)，存在(zai)于(yu)巖(yan)(yan)棉(mian)(mian)(mian)(mian)的(de)(de)表層(ceng)；另一(yi)(yi)種(zhong)是構架(jia)(jia)(jia)水(shui)(shui)(shui)(shui)，存在(zai)于(yu)巖(yan)(yan)棉(mian)(mian)(mian)(mian)晶體(ti)構造之中(zhong)。巖(yan)(yan)棉(mian)(mian)(mian)(mian)遭(zao)到灼燒，當(dang)構架(jia)(jia)(jia)水(shui)(shui)(shui)(shui)選出(chu)時，巖(yan)(yan)棉(mian)(mian)(mian)(mian)纖(xian)(xian)維(wei)(wei)(wei)機(ji)械硬(ying)(ying)度(du)(du)(du)(du)就(jiu)受到破壞。所(suo)以(yi)，通(tong)常以(yi)失(shi)去(qu)構架(jia)(jia)(jia)水(shui)(shui)(shui)(shui)的(de)(de)溫度(du)(du)(du)(du)為巖(yan)(yan)棉(mian)(mian)(mian)(mian)纖(xian)(xian)維(wei)(wei)(wei)的(de)(de)耐熱度(du)(du)(du)(du)。溫度(du)(du)(du)(du)在(zai)400一(yi)(yi)500攝(she)氏(shi)度(du)(du)(du)(du)時，巖(yan)(yan)棉(mian)(mian)(mian)(mian)纖(xian)(xian)維(wei)(wei)(wei)中(zhong)的(de)(de)吸附水(shui)(shui)(shui)(shui)全部橋出(chu)，這時機(ji)械硬(ying)(ying)度(du)(du)(du)(du)有(you)所(suo)降低(di)，但在(zai)該溫度(du)(du)(du)(du)下逐漸冷卻時，巖(yan)(yan)棉(mian)(mian)(mian)(mian)纖(xian)(xian)維(wei)(wei)(wei)又可以(yi)恢(hui)(hui)復原來的(de)(de)機(ji)械硬(ying)(ying)度(du)(du)(du)(du)。加熱至(zhi)600一(yi)(yi)700攝(she)氏(shi)度(du)(du)(du)(du)時，巖(yan)(yan)棉(mian)(mian)(mian)(mian)纖(xian)(xian)維(wei)(wei)(wei)中(zhong)的(de)(de)構架(jia)(jia)(jia)水(shui)(shui)(shui)(shui)析(xi)出(chu)，纖(xian)(xian)維(wei)(wei)(wei)構架(jia)(jia)(jia)被破壞，失(shi)去(qu)原有(you)的(de)(de)物理(li)(li)特點，使巖(yan)(yan)棉(mian)(mian)(mian)(mian)纖(xian)(xian)維(wei)(wei)(wei)變(bian)脆(cui)，甚至(zhi)輕輕揉搓(cuo)即成粉末。當(dang)溫度(du)(du)(du)(du)降低(di)后，巖(yan)(yan)棉(mian)(mian)(mian)(mian)的(de)(de)硬(ying)(ying)度(du)(du)(du)(du)不恢(hui)(hui)復。在(zai)不同(tong)巖(yan)(yan)棉(mian)(mian)(mian)(mian)中(zhong)，直閃石巖(yan)(yan)棉(mian)(mian)(mian)(mian)的(de)(de)耐熱功用(yong)很強(qiang)，在(zai)溫度(du)(du)(du)(du)900攝(she)氏(shi)度(du)(du)(du)(du)時，其(qi)物理(li)(li)化學功用(yong)仍持續不變(bian)，為優良的(de)(de)保溫絕熱材料。