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基(ji)于金(jin)(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)材料的(de)特點(dian)，在高(gao)溫、高(gao)壓及載(zai)荷變化頻繁等苛刻的(de)操作條件下，可(ke)以(yi)首(shou)選金(jin)(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)材料制成密封墊(dian)(dian)(dian)(dian)片(pian)。標(biao)準金(jin)(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)墊(dian)(dian)(dian)(dian)片(pian)主要包括金(jin)(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)環(huan)(huan)形墊(dian)(dian)(dian)(dian)片(pian)、金(jin)(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)齒形墊(dian)(dian)(dian)(dian)片(pian)及金(jin)(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)透鏡墊(dian)(dian)(dian)(dian)片(pian)。金(jin)(jin)(jin)(jin)屬(shu)(shu)(shu)(shu)環(huan)(huan)形墊(dian)(dian)(dian)(dian)片(pian)又可(ke)細(xi)分為八角形環(huan)(huan)墊(dian)(dian)(dian)(dian)和(he)橢圓形環(huan)(huan)墊(dian)(dian)(dian)(dian)以(yi)及RX型(xing)和(he)BX型(xing)自緊墊(dian)(dian)(dian)(dian)等。...
金屬齒(chi)形墊(dian)片也是一種實體(ti)金屬墊(dian)片，墊(dian)片的剖(pou)切(qie)面呈鋸齒(chi)形，齒(chi)距t=1.5~2mm,齒(chi)高h=0.65~0.85mm,齒(chi)頂寬度c=0.2~0.3mm.在(zai)密封面上車削(xue)若干個同(tong)心圓，其(qi)齒(chi)數為7~16,視墊(dian)片的規(gui)格大小而定(ding)。金屬齒(chi)形墊(dian)片的結構型(xing)式有基本型(xing)、帶(dai)外環型(xing)、帶(dai)內環型(xing)及帶(dai)...
一、通(tong)用金(jin)(jin)屬環(huan)形(xing)墊片型式、尺(chi)(chi)寸及公(gong)差1.型式與(yu)尺(chi)(chi)寸 金(jin)(jin)屬環(huan)形(xing)墊片按截面形(xing)狀分為八角形(xing)和橢(tuo)圓(yuan)形(xing)兩種(zhong)結構，如圖(tu)14-1所示，尺(chi)(chi)寸見表14-1.2.尺(chi)(chi)寸公(gong)差 金(jin)(jin)屬環(huan)形(xing)墊片的(de)尺(chi)(chi)寸極(ji)限偏差見表14-2。二(er)、通(tong)用金(jin)(jin)屬環(huan)形(xing)墊片技(ji)術(shu)要求1.材料 ...
柔性(xing)石墨(mo)金屬(shu)波(bo)齒(chi)復合(he)(he)墊(dian)(dian)(dian)片(pian)是由柔性(xing)石墨(mo)做成(cheng)的(de)金屬(shu)波(bo)齒(chi)復合(he)(he)墊(dian)(dian)(dian)片(pian)是在機械加工成(cheng)波(bo)齒(chi)狀的(de)金屬(shu)板兩(liang)面(mian)覆蓋上柔性(xing)石墨(mo)的(de)一(yi)種復合(he)(he)墊(dian)(dian)(dian)片(pian)。這種墊(dian)(dian)(dian)片(pian)既有金屬(shu)的(de)強度，又有波(bo)紋彈性(xing)的(de)特點(dian)，最(zui)高(gao)使(shi)用溫度可(ke)達到650℃左右；適用公稱壓(ya)力用PN標記(ji)的(de)法(fa)蘭用墊(dian)(dian)(dian)片(pian)尺寸的(de)最(zui)高(gao)壓(ya)力可(ke)達250bar;適用公...
金(jin)(jin)屬(shu)沖(chong)齒板(ban)(ban)柔(rou)性(xing)石墨(mo)復(fu)(fu)(fu)合(he)(he)墊片(pian)是由沖(chong)齒的金(jin)(jin)屬(shu)齒板(ban)(ban)或沖(chong)孔金(jin)(jin)屬(shu)芯板(ban)(ban)與柔(rou)性(xing)石墨(mo)粒子復(fu)(fu)(fu)合(he)(he)壓(ya)制(zhi)(zhi)而成的密封墊片(pian)，它通常由金(jin)(jin)屬(shu)沖(chong)齒板(ban)(ban)與柔(rou)性(xing)石墨(mo)板(ban)(ban)材復(fu)(fu)(fu)合(he)(he)成的柔(rou)性(xing)石墨(mo)復(fu)(fu)(fu)合(he)(he)增(zeng)強(qiang)板(ban)(ban)裁(cai)制(zhi)(zhi)成所需的形狀。這種墊片(pian)可制(zhi)(zhi)成帶不(bu)銹鋼或碳(tan)鋼內包邊或外包邊的形式。墊片(pian)的主要特點(dian)是：有良(liang)好的耐高、低(di)...
金(jin)(jin)屬(shu)包(bao)覆(fu)(fu)(fu)墊片是以非金(jin)(jin)屬(shu)材(cai)料(liao)為(wei)(wei)芯材(cai)，切成(cheng)所(suo)需的(de)(de)形狀，外面(mian)包(bao)以厚度(du)為(wei)(wei)0.25~0.5mm的(de)(de)金(jin)(jin)屬(shu)薄(bo)板組成(cheng)的(de)(de)一(yi)(yi)種復合(he)墊片。按包(bao)覆(fu)(fu)(fu)狀態，一(yi)(yi)般分(fen)為(wei)(wei)平面(mian)型包(bao)覆(fu)(fu)(fu)和波紋型包(bao)覆(fu)(fu)(fu)兩種，如圖(tu)13-16所(suo)示。 金(jin)(jin)屬(shu)薄(bo)板可根據材(cai)料(liao)的(de)(de)彈塑性(xing)、耐熱性(xing)和耐蝕性(xing)選取。其材(cai)料(liao)主(zhu)要有黃銅、鋁、軟鋼...
纏(chan)繞式墊片(pian)是由(you)金(jin)屬(shu)(shu)帶和非金(jin)屬(shu)(shu)帶螺(luo)旋復(fu)合繞制而成的一(yi)種(zhong)半金(jin)屬(shu)(shu)平墊片(pian)，其特點是：壓(ya)(ya)縮、回彈性能(neng)好；具有(you)多道密(mi)封(feng)和一(yi)定的自緊功能(neng)；對(dui)法(fa)蘭壓(ya)(ya)緊密(mi)封(feng)表面(mian)的缺陷不(bu)太(tai)敏(min)感，且不(bu)粘接法(fa)蘭密(mi)封(feng)表面(mian)；容易對(dui)中，拆裝便捷(jie)；可部分消除壓(ya)(ya)力、溫度變化和機械振動的影(ying)響；能(neng)在高溫、低溫、高真空、...
一、非金屬聚(ju)四(si)氟乙(yi)烯(xi)包覆墊片(pian)材料1.常用(yong)(yong)夾嵌層材料的(de)代號和推薦(jian)使用(yong)(yong)溫(wen)度(du)見表(biao)12-20.根據(ju)供需雙方協商，允許采用(yong)(yong)表(biao)12-20之外的(de)夾嵌層材料。2.墊片(pian)包覆層用(yong)(yong)聚(ju)四(si)氟乙(yi)烯(xi)管材應(ying)符合(he)QB/T3624-1999(2009)《聚(ju)四(si)氟乙(yi)烯(xi)管材》的(de)規定，聚(ju)四(si)氟乙(yi)烯(xi)板材應(ying)符合(he)QB/T3...
我國石(shi)油(you)天然氣工業，鉆井和采油(you)設備中(zhong)的井口裝(zhuang)置和采油(you)樹（采油(you)樹系(xi)指用于控制(zhi)油(you)井生(sheng)產(chan)的裝(zhuang)置總成，包括(kuo)油(you)管頭異(yi)徑接頭、閥、三通(tong)、四通(tong)、頂部(bu)連接裝(zhuang)置和裝(zhuang)于油(you)管頭最上部(bu)連接節流閥）采用6B型、6BX型及雙(shuang)層扇形法(fa)蘭，法(fa)蘭額(e)定工作壓力一共(gong)分6級：13.8MPa、20.7MPa...
一、平焊(han)(han)(han)法(fa)蘭型式(shi)(shi)與尺寸用PN標記的(de)板(ban)式(shi)(shi)平焊(han)(han)(han)鋼制管法(fa)蘭的(de)密封(feng)面型式(shi)(shi)及適用的(de)公稱壓力(li)和公稱尺寸范圍見表(biao)6-103;用PN標記的(de)板(ban)式(shi)(shi)平焊(han)(han)(han)鋼制管法(fa)蘭的(de)型式(shi)(shi)如圖6-49、圖6-50所示，法(fa)蘭的(de)結構尺寸見表(biao)6-104~表(biao)6-111。二、平焊(han)(han)(han)法(fa)蘭標記1.板(ban)式(shi)(shi)平焊(han)(han)(han)鋼制管法(fa)蘭應(ying)按下列規定進行標記...
一、對(dui)(dui)焊(han)環(huan)帶(dai)頸(jing)松(song)套(tao)法蘭型式(shi)(shi)與尺(chi)(chi)寸 用(yong)Class標記(ji)的(de)對(dui)(dui)焊(han)環(huan)帶(dai)頸(jing)松(song)套(tao)鋼制管法蘭的(de)密(mi)(mi)封(feng)面型式(shi)(shi)及適用(yong)的(de)公(gong)稱壓(ya)力(li)和(he)公(gong)稱尺(chi)(chi)寸范圍見(jian)表(biao)6-95;用(yong)Class標記(ji)的(de)對(dui)(dui)焊(han)環(huan)帶(dai)頸(jing)松(song)套(tao)鋼制管法蘭的(de)型式(shi)(shi)如圖(tu)6-47、圖(tu)6-48所示(shi)，法蘭密(mi)(mi)封(feng)面尺(chi)(chi)寸見(jian)表(biao)6-96,法蘭結構尺(chi)(chi)寸或尺(chi)(chi)寸見(jian)表(biao)6-97...
一(yi)、帶頸承插焊(han)(han)(han)法蘭(lan)(lan)型(xing)式(shi)與(yu)尺(chi)(chi)寸(cun)(cun)1.用PN標記的(de)帶頸承插焊(han)(han)(han)法蘭(lan)(lan) 用PN標記的(de)帶頸承插焊(han)(han)(han)鋼制管法蘭(lan)(lan)的(de)密封(feng)(feng)面型(xing)式(shi)及適用的(de)公稱壓(ya)力和公稱尺(chi)(chi)寸(cun)(cun)范圍(wei)見表(biao)(biao)6-81;用PN標記的(de)帶頸承插焊(han)(han)(han)鋼制管法蘭(lan)(lan)型(xing)式(shi)如圖6-36~圖6-41所(suo)示，法蘭(lan)(lan)密封(feng)(feng)面尺(chi)(chi)寸(cun)(cun)見表(biao)(biao)6-82、表(biao)(biao)6-83,法蘭(lan)(lan)結構尺(chi)(chi)寸(cun)(cun)...
