⑴板(ban)材(cai)用于平壁(bi)(bi)或大曲(qu)面設(she)備(bei)保(bao)溫施工時(shi)(shi)，棉板(ban)應(ying)緊(jin)貼(tie)于設(she)備(bei)外壁(bi)(bi)，曲(qu)面設(she)備(bei)需(xu)將棉板(ban)接(jie)縫切成(cheng)斜口(kou)拼接(jie)通常宜采用銷(xiao)釘自鎖緊(jin)板(ban)固定(ding)。對于不宜焊銷(xiao)釘的設(she)備(bei)，可(ke)用鋼(gang)帶捆扎，間距為(wei)每塊棉板(ban)不少于兩道，拐角處要用鍍鋅(xin)鐵皮。當保(bao)溫層超過80mm時(shi)(shi)，應(ying)分層保(bao)溫。

⑶保(bao)(bao)溫制品的(de)拼縫寬度,一般不得大于5mm,且(qie)施工(gong)時需注意錯縫。保(bao)(bao)溫鉤釘(ding)銷釘(ding)的(de)安裝(zhuang)，一般設備(bei)出(chu)廠前都(dou)已把保(bao)(bao)溫鉤釘(ding)和(he)支承件(jian)焊接(jie)在設備(bei)上，到現(xian)(xian)場只要(yao)安裝(zhuang)保(bao)(bao)溫層和(he)保(bao)(bao)護層就可(ke)以了。出(chu)廠前沒有(you)焊好鉤釘(ding)需現(xian)(xian)場焊接(jie)的(de)，單位(wei)面積上鉤釘(ding)或銷釘(ding)數，側部(bu)不應少(shao)于6個/m2底部不應少于8個/m2。焊接鉤釘或銷釘時，應先用粉線在設備、管道壁上錯行或對行劃出每個鉤釘或銷釘的位置。支承件的安裝，對于支承件的材質，應根據設備或管道材質確定，宜采用普通碳鋼板或型鋼制作。支承件不得設在有附件的位置上，環面應水平設置，各托架筋板之間安裝誤差應大于10mm，當不允許直接焊于設備上時，應采用抱箍型支承件，支承件制作的寬度應小于保溫層厚度10mm，但不得大于20mm，立式設備和公稱直徑大于100mm的垂直管道支承件的安裝間距，應視保溫材料松散程度而定。

4、保(bao)護層(ceng)(ceng)施(shi)工保(bao)護層(ceng)(ceng)常用(yong)(yong)(yong)鍍鋅(xin)薄鋼(gang)板(ban)(ban)(ban)或鋁合金板(ban)(ban)(ban)，現在(zai)(zai)一般常用(yong)(yong)(yong)瓦楞(leng)彩鋼(gang)板(ban)(ban)(ban)。用(yong)(yong)(yong)薄鋼(gang)板(ban)(ban)(ban)安裝時，里(li)外表必須涂(tu)敷防銹涂(tu)料，安裝前將板(ban)(ban)(ban)兩先壓(ya)出(chu)兩道半圓凸(tu)緣，垂直(zhi)方向(xiang)(xiang)(xiang)保(bao)溫施(shi)工時，將相鄰兩張(zhang)板(ban)(ban)(ban)的(de)半圓凸(tu)緣重疊搭(da)(da)接(jie)，自下(xia)(xia)(xia)而上，上層(ceng)(ceng)板(ban)(ban)(ban)壓(ya)下(xia)(xia)(xia)層(ceng)(ceng)板(ban)(ban)(ban)，搭(da)(da)接(jie)50mm。采用(yong)(yong)(yong)銷(xiao)(xiao)釘(ding)(ding)固定(ding)時，用(yong)(yong)(yong)木錘對準銷(xiao)(xiao)釘(ding)(ding)將薄板(ban)(ban)(ban)打穿，去(qu)除孔邊小塊渣皮，套(tao)(tao)上3mm厚膠墊(dian)，用(yong)(yong)(yong)自銷(xiao)(xiao)緊板(ban)(ban)(ban)套(tao)(tao)入壓(ya)緊。管道的(de)保(bao)溫，可直(zhi)接(jie)將金屬板(ban)(ban)(ban)卷合在(zai)(zai)保(bao)溫層(ceng)(ceng)外，按管道坡向(xiang)(xiang)(xiang)，自下(xia)(xia)(xia)而上施(shi)工；兩板(ban)(ban)(ban)環(huan)向(xiang)(xiang)(xiang)半圓面積凸(tu)緣重疊，縱向(xiang)(xiang)(xiang)搭(da)(da)口向(xiang)(xiang)(xiang)下(xia)(xia)(xia)，搭(da)(da)接(jie)處重疊50mm。搭(da)(da)接(jie)處先用(yong)(yong)(yong)φ4mm（或φ3.6mm）鉆頭鉆孔，再用(yong)(yong)(yong)抽(chou)芯(xin)鉚釘(ding)(ding)或自攻螺(luo)釘(ding)(ding)固定(ding)，鉚或螺(luo)釘(ding)(ding)間距(ju)為(wei)150～200mm。考慮設備及管道運行受脹位移，金(jin)(jin)屬(shu)保(bao)護層應在伸縮方向(xiang)留適(shi)當活動(dong)搭口。在露(lu)天或潮濕環境中的保(bao)溫設備和管道與其附件的金(jin)(jin)屬(shu)保(bao)護層，必(bi)須按照規定(ding)嵌填密封劑(ji)或接縫(feng)處包纏密封帶。