NEWS
基于金(jin)屬(shu)材(cai)料(liao)的特(te)點，在高溫、高壓及載荷(he)變化頻(pin)繁等苛(ke)刻(ke)的操(cao)作條件下，可(ke)(ke)以(yi)首(shou)選金(jin)屬(shu)材(cai)料(liao)制成(cheng)密封墊(dian)(dian)片。標準金(jin)屬(shu)墊(dian)(dian)片主要包括金(jin)屬(shu)環形(xing)(xing)(xing)墊(dian)(dian)片、金(jin)屬(shu)齒形(xing)(xing)(xing)墊(dian)(dian)片及金(jin)屬(shu)透鏡墊(dian)(dian)片。金(jin)屬(shu)環形(xing)(xing)(xing)墊(dian)(dian)片又可(ke)(ke)細分為八角形(xing)(xing)(xing)環墊(dian)(dian)和(he)橢圓形(xing)(xing)(xing)環墊(dian)(dian)以(yi)及RX型(xing)和(he)BX型(xing)自緊(jin)墊(dian)(dian)等。...
金屬(shu)(shu)齒(chi)形(xing)墊(dian)片(pian)也是(shi)一(yi)種實體金屬(shu)(shu)墊(dian)片(pian)，墊(dian)片(pian)的(de)剖切面呈鋸(ju)齒(chi)形(xing)，齒(chi)距(ju)t=1.5~2mm,齒(chi)高h=0.65~0.85mm,齒(chi)頂寬度c=0.2~0.3mm.在密封面上車削若干個(ge)同心圓，其(qi)齒(chi)數為7~16,視墊(dian)片(pian)的(de)規格(ge)大小而定(ding)。金屬(shu)(shu)齒(chi)形(xing)墊(dian)片(pian)的(de)結構型(xing)(xing)式有基本型(xing)(xing)、帶(dai)(dai)外環型(xing)(xing)、帶(dai)(dai)內環型(xing)(xing)及帶(dai)(dai)...
一、通(tong)用金(jin)屬(shu)環形(xing)(xing)(xing)墊(dian)片(pian)(pian)型式、尺寸及公差1.型式與尺寸 金(jin)屬(shu)環形(xing)(xing)(xing)墊(dian)片(pian)(pian)按截(jie)面形(xing)(xing)(xing)狀(zhuang)分為八(ba)角形(xing)(xing)(xing)和橢(tuo)圓形(xing)(xing)(xing)兩種結構，如圖(tu)14-1所示，尺寸見(jian)表(biao)(biao)14-1.2.尺寸公差 金(jin)屬(shu)環形(xing)(xing)(xing)墊(dian)片(pian)(pian)的尺寸極限偏差見(jian)表(biao)(biao)14-2。二、通(tong)用金(jin)屬(shu)環形(xing)(xing)(xing)墊(dian)片(pian)(pian)技(ji)術(shu)要求1.材料(liao) ...
柔性(xing)石墨(mo)(mo)金(jin)屬波齒復合(he)墊片(pian)(pian)是由(you)柔性(xing)石墨(mo)(mo)做成的金(jin)屬波齒復合(he)墊片(pian)(pian)是在機械加工(gong)成波齒狀的金(jin)屬板兩(liang)面覆(fu)蓋上柔性(xing)石墨(mo)(mo)的一(yi)種(zhong)復合(he)墊片(pian)(pian)。這(zhe)種(zhong)墊片(pian)(pian)既有金(jin)屬的強(qiang)度(du)，又有波紋彈性(xing)的特點，最高使用(yong)溫度(du)可達到650℃左右；適(shi)用(yong)公稱壓(ya)力(li)用(yong)PN標記的法蘭(lan)用(yong)墊片(pian)(pian)尺(chi)寸(cun)的最高壓(ya)力(li)可達250bar;適(shi)用(yong)公...
金(jin)屬(shu)沖齒(chi)(chi)板(ban)(ban)(ban)(ban)柔性(xing)石(shi)墨復合(he)墊(dian)片(pian)是(shi)由沖齒(chi)(chi)的金(jin)屬(shu)齒(chi)(chi)板(ban)(ban)(ban)(ban)或(huo)沖孔金(jin)屬(shu)芯板(ban)(ban)(ban)(ban)與柔性(xing)石(shi)墨粒(li)子復合(he)壓制而成的密封墊(dian)片(pian)，它通常由金(jin)屬(shu)沖齒(chi)(chi)板(ban)(ban)(ban)(ban)與柔性(xing)石(shi)墨板(ban)(ban)(ban)(ban)材復合(he)成的柔性(xing)石(shi)墨復合(he)增強板(ban)(ban)(ban)(ban)裁制成所需的形狀。這(zhe)種(zhong)墊(dian)片(pian)可制成帶不銹鋼或(huo)碳鋼內包(bao)邊或(huo)外包(bao)邊的形式(shi)。墊(dian)片(pian)的主要特點是(shi)：有良好的耐高、低...
金(jin)(jin)屬(shu)(shu)包(bao)覆(fu)墊(dian)片(pian)是以(yi)非金(jin)(jin)屬(shu)(shu)材(cai)料(liao)(liao)為芯材(cai)，切成所需的(de)形狀，外(wai)面(mian)包(bao)以(yi)厚度(du)為0.25~0.5mm的(de)金(jin)(jin)屬(shu)(shu)薄板組成的(de)一種復(fu)合(he)墊(dian)片(pian)。按(an)包(bao)覆(fu)狀態，一般分為平(ping)面(mian)型包(bao)覆(fu)和(he)波紋(wen)型包(bao)覆(fu)兩(liang)種，如圖(tu)13-16所示。 金(jin)(jin)屬(shu)(shu)薄板可根據材(cai)料(liao)(liao)的(de)彈塑性(xing)、耐(nai)熱性(xing)和(he)耐(nai)蝕性(xing)選取。其(qi)材(cai)料(liao)(liao)主要有黃銅、鋁、軟鋼...
纏繞式(shi)墊片是由(you)金(jin)(jin)屬(shu)(shu)帶(dai)和(he)非金(jin)(jin)屬(shu)(shu)帶(dai)螺(luo)旋復合繞制而(er)成的(de)一(yi)種(zhong)半金(jin)(jin)屬(shu)(shu)平墊片，其特點是：壓(ya)縮、回彈性(xing)能(neng)好；具有多道密封和(he)一(yi)定的(de)自緊(jin)功能(neng)；對(dui)法(fa)蘭壓(ya)緊(jin)密封表面(mian)的(de)缺陷不(bu)太敏感(gan)，且(qie)不(bu)粘(zhan)接法(fa)蘭密封表面(mian)；容易對(dui)中，拆裝便捷；可(ke)部分消除壓(ya)力、溫(wen)度(du)變化和(he)機械振動的(de)影響；能(neng)在(zai)高溫(wen)、低溫(wen)、高真空、...
一、非金屬聚(ju)四氟(fu)乙(yi)(yi)烯(xi)(xi)包覆(fu)墊片材(cai)(cai)(cai)料(liao)1.常用(yong)夾(jia)嵌層材(cai)(cai)(cai)料(liao)的代號和推(tui)薦使用(yong)溫度見表12-20.根據供(gong)需(xu)雙方協商，允許采用(yong)表12-20之外(wai)的夾(jia)嵌層材(cai)(cai)(cai)料(liao)。2.墊片包覆(fu)層用(yong)聚(ju)四氟(fu)乙(yi)(yi)烯(xi)(xi)管材(cai)(cai)(cai)應(ying)符合QB/T3624-1999(2009)《聚(ju)四氟(fu)乙(yi)(yi)烯(xi)(xi)管材(cai)(cai)(cai)》的規定，聚(ju)四氟(fu)乙(yi)(yi)烯(xi)(xi)板材(cai)(cai)(cai)應(ying)符合QB/T3...
我國石(shi)油(you)(you)(you)(you)天然氣工業，鉆井和采(cai)(cai)油(you)(you)(you)(you)設備中(zhong)的井口裝置(zhi)和采(cai)(cai)油(you)(you)(you)(you)樹（采(cai)(cai)油(you)(you)(you)(you)樹系指(zhi)用于(yu)控制(zhi)油(you)(you)(you)(you)井生產的裝置(zhi)總成，包(bao)括油(you)(you)(you)(you)管(guan)頭(tou)異徑接(jie)頭(tou)、閥、三通、四(si)通、頂部(bu)(bu)連(lian)接(jie)裝置(zhi)和裝于(yu)油(you)(you)(you)(you)管(guan)頭(tou)最(zui)上部(bu)(bu)連(lian)接(jie)節(jie)流閥）采(cai)(cai)用6B型、6BX型及雙層扇(shan)形法蘭(lan)，法蘭(lan)額定工作壓力一共分6級：13.8MPa、20.7MPa...
一、平(ping)(ping)焊(han)(han)法蘭型式(shi)(shi)與(yu)尺(chi)寸用(yong)PN標(biao)記(ji)的(de)(de)(de)板式(shi)(shi)平(ping)(ping)焊(han)(han)鋼制(zhi)管(guan)法蘭的(de)(de)(de)密(mi)封面型式(shi)(shi)及(ji)適用(yong)的(de)(de)(de)公(gong)稱(cheng)壓力和公(gong)稱(cheng)尺(chi)寸范圍見表6-103;用(yong)PN標(biao)記(ji)的(de)(de)(de)板式(shi)(shi)平(ping)(ping)焊(han)(han)鋼制(zhi)管(guan)法蘭的(de)(de)(de)型式(shi)(shi)如圖(tu)6-49、圖(tu)6-50所(suo)示，法蘭的(de)(de)(de)結(jie)構尺(chi)寸見表6-104~表6-111。二、平(ping)(ping)焊(han)(han)法蘭標(biao)記(ji)1.板式(shi)(shi)平(ping)(ping)焊(han)(han)鋼制(zhi)管(guan)法蘭應按下列規(gui)定進行標(biao)記(ji)...
一、對焊環帶頸(jing)松(song)(song)套法蘭(lan)(lan)型(xing)式與尺(chi)寸(cun) 用Class標記(ji)的(de)對焊環帶頸(jing)松(song)(song)套鋼制(zhi)管(guan)法蘭(lan)(lan)的(de)密封(feng)面型(xing)式及適用的(de)公稱壓(ya)力和公稱尺(chi)寸(cun)范(fan)圍見表(biao)6-95;用Class標記(ji)的(de)對焊環帶頸(jing)松(song)(song)套鋼制(zhi)管(guan)法蘭(lan)(lan)的(de)型(xing)式如圖6-47、圖6-48所(suo)示，法蘭(lan)(lan)密封(feng)面尺(chi)寸(cun)見表(biao)6-96,法蘭(lan)(lan)結構尺(chi)寸(cun)或尺(chi)寸(cun)見表(biao)6-97...
一、帶(dai)(dai)頸(jing)承(cheng)插焊法(fa)(fa)蘭(lan)型(xing)式(shi)(shi)(shi)與尺寸(cun)1.用PN標記的帶(dai)(dai)頸(jing)承(cheng)插焊法(fa)(fa)蘭(lan) 用PN標記的帶(dai)(dai)頸(jing)承(cheng)插焊鋼制(zhi)管法(fa)(fa)蘭(lan)的密封(feng)(feng)面型(xing)式(shi)(shi)(shi)及適用的公稱壓力和公稱尺寸(cun)范圍見表(biao)6-81;用PN標記的帶(dai)(dai)頸(jing)承(cheng)插焊鋼制(zhi)管法(fa)(fa)蘭(lan)型(xing)式(shi)(shi)(shi)如(ru)圖(tu)6-36~圖(tu)6-41所(suo)示，法(fa)(fa)蘭(lan)密封(feng)(feng)面尺寸(cun)見表(biao)6-82、表(biao)6-83,法(fa)(fa)蘭(lan)結構尺寸(cun)...
