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基于(yu)金屬(shu)(shu)(shu)材料(liao)(liao)的(de)(de)特點(dian)，在高溫、高壓及載(zai)荷變化頻(pin)繁等(deng)苛刻的(de)(de)操作條件下，可以首選金屬(shu)(shu)(shu)材料(liao)(liao)制成密封墊(dian)(dian)(dian)(dian)片(pian)。標(biao)準金屬(shu)(shu)(shu)墊(dian)(dian)(dian)(dian)片(pian)主要包括(kuo)金屬(shu)(shu)(shu)環(huan)(huan)形墊(dian)(dian)(dian)(dian)片(pian)、金屬(shu)(shu)(shu)齒形墊(dian)(dian)(dian)(dian)片(pian)及金屬(shu)(shu)(shu)透鏡墊(dian)(dian)(dian)(dian)片(pian)。金屬(shu)(shu)(shu)環(huan)(huan)形墊(dian)(dian)(dian)(dian)片(pian)又(you)可細分為八角形環(huan)(huan)墊(dian)(dian)(dian)(dian)和(he)橢(tuo)圓形環(huan)(huan)墊(dian)(dian)(dian)(dian)以及RX型和(he)BX型自緊墊(dian)(dian)(dian)(dian)等(deng)。...
金屬(shu)齒形墊(dian)(dian)(dian)片(pian)(pian)(pian)也是一種實體金屬(shu)墊(dian)(dian)(dian)片(pian)(pian)(pian)，墊(dian)(dian)(dian)片(pian)(pian)(pian)的剖(pou)切面(mian)呈鋸齒形，齒距(ju)t=1.5~2mm,齒高h=0.65~0.85mm,齒頂寬度c=0.2~0.3mm.在密封面(mian)上車削若干個同心圓，其齒數為7~16,視墊(dian)(dian)(dian)片(pian)(pian)(pian)的規(gui)格大小而定(ding)。金屬(shu)齒形墊(dian)(dian)(dian)片(pian)(pian)(pian)的結構型式有基本型、帶(dai)外(wai)環型、帶(dai)內環型及帶(dai)...
一、通用金屬(shu)環(huan)形(xing)(xing)墊(dian)(dian)片型式、尺寸及公差(cha)1.型式與尺寸 金屬(shu)環(huan)形(xing)(xing)墊(dian)(dian)片按截面形(xing)(xing)狀(zhuang)分(fen)為八(ba)角形(xing)(xing)和橢圓形(xing)(xing)兩種結構，如圖14-1所(suo)示，尺寸見(jian)(jian)表14-1.2.尺寸公差(cha) 金屬(shu)環(huan)形(xing)(xing)墊(dian)(dian)片的尺寸極限偏差(cha)見(jian)(jian)表14-2。二(er)、通用金屬(shu)環(huan)形(xing)(xing)墊(dian)(dian)片技術(shu)要(yao)求1.材料 ...
柔性(xing)石墨金屬(shu)波齒(chi)復合墊片(pian)是(shi)由(you)柔性(xing)石墨做成(cheng)的(de)金屬(shu)波齒(chi)復合墊片(pian)是(shi)在機械加工成(cheng)波齒(chi)狀(zhuang)的(de)金屬(shu)板(ban)兩面(mian)覆蓋(gai)上柔性(xing)石墨的(de)一種復合墊片(pian)。這種墊片(pian)既有金屬(shu)的(de)強度，又有波紋彈(dan)性(xing)的(de)特點，最高使用(yong)(yong)溫度可達(da)到650℃左右；適用(yong)(yong)公稱壓(ya)力用(yong)(yong)PN標記的(de)法蘭用(yong)(yong)墊片(pian)尺寸的(de)最高壓(ya)力可達(da)250bar;適用(yong)(yong)公...
金屬沖(chong)齒板柔(rou)性石墨(mo)復合墊(dian)片(pian)是由沖(chong)齒的(de)(de)(de)(de)金屬齒板或(huo)沖(chong)孔(kong)金屬芯板與柔(rou)性石墨(mo)粒子復合壓制(zhi)而成(cheng)的(de)(de)(de)(de)密封(feng)墊(dian)片(pian)，它通常由金屬沖(chong)齒板與柔(rou)性石墨(mo)板材(cai)復合成(cheng)的(de)(de)(de)(de)柔(rou)性石墨(mo)復合增強板裁制(zhi)成(cheng)所(suo)需(xu)的(de)(de)(de)(de)形狀。這(zhe)種墊(dian)片(pian)可制(zhi)成(cheng)帶(dai)不銹鋼或(huo)碳鋼內包(bao)(bao)邊或(huo)外包(bao)(bao)邊的(de)(de)(de)(de)形式。墊(dian)片(pian)的(de)(de)(de)(de)主要特點是：有(you)良好的(de)(de)(de)(de)耐高、低...
金屬(shu)包(bao)(bao)覆(fu)(fu)墊(dian)片(pian)是以非(fei)金屬(shu)材(cai)料(liao)(liao)為芯(xin)材(cai)，切成所(suo)需的形狀(zhuang)，外面包(bao)(bao)以厚度為0.25~0.5mm的金屬(shu)薄(bo)板(ban)組成的一種復合墊(dian)片(pian)。按包(bao)(bao)覆(fu)(fu)狀(zhuang)態，一般分(fen)為平面型包(bao)(bao)覆(fu)(fu)和波紋(wen)型包(bao)(bao)覆(fu)(fu)兩種，如(ru)圖13-16所(suo)示。 金屬(shu)薄(bo)板(ban)可(ke)根據材(cai)料(liao)(liao)的彈塑性、耐熱(re)性和耐蝕性選(xuan)取。其材(cai)料(liao)(liao)主要有黃(huang)銅、鋁(lv)、軟鋼...
纏繞式墊(dian)片是(shi)由金(jin)屬(shu)帶和非金(jin)屬(shu)帶螺(luo)旋復合繞制而(er)成的(de)(de)一(yi)種半(ban)金(jin)屬(shu)平墊(dian)片，其特點(dian)是(shi)：壓(ya)縮、回彈性能(neng)好；具有多道密(mi)(mi)封(feng)和一(yi)定的(de)(de)自緊功能(neng)；對法蘭(lan)壓(ya)緊密(mi)(mi)封(feng)表(biao)面的(de)(de)缺陷不(bu)太敏感，且(qie)不(bu)粘接(jie)法蘭(lan)密(mi)(mi)封(feng)表(biao)面；容易對中，拆裝便捷；可(ke)部分消除壓(ya)力、溫(wen)度變化和機械振動的(de)(de)影響；能(neng)在(zai)高溫(wen)、低溫(wen)、高真空、...
一、非金屬聚(ju)四(si)(si)(si)氟(fu)(fu)乙(yi)烯(xi)包覆墊(dian)片(pian)材(cai)料1.常(chang)用(yong)夾嵌層(ceng)材(cai)料的(de)代號和推薦使(shi)用(yong)溫度見表12-20.根據供需雙方協商，允許采用(yong)表12-20之外的(de)夾嵌層(ceng)材(cai)料。2.墊(dian)片(pian)包覆層(ceng)用(yong)聚(ju)四(si)(si)(si)氟(fu)(fu)乙(yi)烯(xi)管材(cai)應(ying)(ying)符合QB/T3624-1999(2009)《聚(ju)四(si)(si)(si)氟(fu)(fu)乙(yi)烯(xi)管材(cai)》的(de)規(gui)定，聚(ju)四(si)(si)(si)氟(fu)(fu)乙(yi)烯(xi)板材(cai)應(ying)(ying)符合QB/T3...
我(wo)國(guo)石油(you)(you)(you)(you)天然氣工(gong)業，鉆井和采(cai)油(you)(you)(you)(you)設備中的井口裝(zhuang)置(zhi)和采(cai)油(you)(you)(you)(you)樹(shu)（采(cai)油(you)(you)(you)(you)樹(shu)系指(zhi)用于(yu)控(kong)制(zhi)油(you)(you)(you)(you)井生(sheng)產的裝(zhuang)置(zhi)總成，包括油(you)(you)(you)(you)管頭異徑接(jie)頭、閥、三通、四通、頂部連接(jie)裝(zhuang)置(zhi)和裝(zhuang)于(yu)油(you)(you)(you)(you)管頭最(zui)上部連接(jie)節流閥）采(cai)用6B型、6BX型及雙層扇形法蘭，法蘭額定工(gong)作壓力一(yi)共(gong)分6級：13.8MPa、20.7MPa...
一、平(ping)(ping)焊(han)法(fa)(fa)(fa)蘭型(xing)式(shi)與尺寸(cun)用(yong)PN標(biao)(biao)記的(de)(de)板式(shi)平(ping)(ping)焊(han)鋼制(zhi)管法(fa)(fa)(fa)蘭的(de)(de)密封面型(xing)式(shi)及適用(yong)的(de)(de)公稱(cheng)壓(ya)力和公稱(cheng)尺寸(cun)范圍(wei)見(jian)表(biao)6-103;用(yong)PN標(biao)(biao)記的(de)(de)板式(shi)平(ping)(ping)焊(han)鋼制(zhi)管法(fa)(fa)(fa)蘭的(de)(de)型(xing)式(shi)如圖(tu)6-49、圖(tu)6-50所示(shi)，法(fa)(fa)(fa)蘭的(de)(de)結構(gou)尺寸(cun)見(jian)表(biao)6-104~表(biao)6-111。二、平(ping)(ping)焊(han)法(fa)(fa)(fa)蘭標(biao)(biao)記1.板式(shi)平(ping)(ping)焊(han)鋼制(zhi)管法(fa)(fa)(fa)蘭應(ying)按(an)下(xia)列(lie)規定進行標(biao)(biao)記...
一、對(dui)(dui)焊環帶(dai)頸(jing)松(song)套法(fa)(fa)(fa)(fa)蘭(lan)(lan)型式(shi)與尺寸 用Class標(biao)(biao)記(ji)的(de)(de)對(dui)(dui)焊環帶(dai)頸(jing)松(song)套鋼(gang)制管(guan)法(fa)(fa)(fa)(fa)蘭(lan)(lan)的(de)(de)密封面型式(shi)及適(shi)用的(de)(de)公稱壓力和公稱尺寸范圍見(jian)表(biao)6-95;用Class標(biao)(biao)記(ji)的(de)(de)對(dui)(dui)焊環帶(dai)頸(jing)松(song)套鋼(gang)制管(guan)法(fa)(fa)(fa)(fa)蘭(lan)(lan)的(de)(de)型式(shi)如圖6-47、圖6-48所示，法(fa)(fa)(fa)(fa)蘭(lan)(lan)密封面尺寸見(jian)表(biao)6-96,法(fa)(fa)(fa)(fa)蘭(lan)(lan)結構尺寸或尺寸見(jian)表(biao)6-97...
一、帶頸(jing)(jing)承插焊法(fa)(fa)蘭(lan)(lan)型(xing)式(shi)(shi)與尺寸(cun)(cun)1.用PN標記(ji)的帶頸(jing)(jing)承插焊法(fa)(fa)蘭(lan)(lan) 用PN標記(ji)的帶頸(jing)(jing)承插焊鋼制(zhi)管法(fa)(fa)蘭(lan)(lan)的密封(feng)(feng)面型(xing)式(shi)(shi)及(ji)適用的公(gong)稱(cheng)壓力(li)和公(gong)稱(cheng)尺寸(cun)(cun)范圍(wei)見表6-81;用PN標記(ji)的帶頸(jing)(jing)承插焊鋼制(zhi)管法(fa)(fa)蘭(lan)(lan)型(xing)式(shi)(shi)如圖6-36~圖6-41所(suo)示，法(fa)(fa)蘭(lan)(lan)密封(feng)(feng)面尺寸(cun)(cun)見表6-82、表6-83,法(fa)(fa)蘭(lan)(lan)結構尺寸(cun)(cun)...
