法(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)垫(dian)(dian)片(pian)(pian)(pian)(pian)适用(yong)于(yu)(yu)(yu)各种介质(zhi)的(de)管(guan)道(dao)、压力容(rong)器、阀门、泵、换热(re)器等设(she)备的(de)法(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)连接处，作(zuo)静密封(feng)之用(yong)。应(ying)用(yong)于(yu)(yu)(yu)石油、化(hua)工、机械、冶(ye)金、电力、造船及管(guan)道(dao)、压力容(rong)器、人孔(kong)、手孔(kong)等法(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)连接处，作(zuo)静密封(feng)之用(yong)。由于(yu)(yu)(yu)机械强度高(gao)，使用(yong)方便，压缩(suo)回弹性好，更适应(ying)在(zai)剧(ju)烈的(de)温度交变(bian)场合应(ying)用(yong)。法(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)垫(dian)(dian)片(pian)(pian)(pian)(pian)的(de)作(zuo)业(ye)环(huan)境如(ru)下：1、严(yan)苛工况变(bian)为(wei)密封(feng)可接受工况。2、实践作(zuo)业(ye)中，不必(bi)任何辅佐(zuo)设(she)备的(de)法(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)垫(dian)(dian)片(pian)(pian)(pian)(pian)几乎没(mei)有(you)。如(ru)高(gao)压运用(yong)的(de)串(chuan)联法(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)垫(dian)(dian)片(pian)(pian)(pian)(pian)、高(gao)温法(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)垫(dian)(dian)片(pian)(pian)(pian)(pian)都须选用(yong)相应(ying)辅佐(zuo)设(she)备。3、无辅佐(zuo)体系(xi)，就只能(neng)改变(bian)密封(feng)布局，进步(bu)原料(liao)。在(zai)应(ying)用(yong)法(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)垫(dian)(dian)片(pian)(pian)(pian)(pian)时，在(zai)400℃以上加(jia)热(re)时，法(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)垫(dian)(dian)片(pian)(pian)(pian)(pian)的(de)裂解速度逐渐(jian)加(jia)快(kuai)，分解产物主(zhu)要(yao)是四氟(fu)(fu)乙烯、全(quan)氟(fu)(fu)丙(bing)烯和八(ba)氟(fu)(fu)环(huan)丁烷。四氟(fu)(fu)垫(dian)(dian)片(pian)(pian)(pian)(pian)是由四氟(fu)(fu)乙烯经聚合而成的(de)高(gao)分子化(hua)合物，有(you)优良(liang)的(de)化(hua)学稳定性。南京(jing)法(fa)(fa)(fa)(fa)兰(lan)(lan)(lan)(lan)密封(feng)垫(dian)(dian)片(pian)(pian)(pian)(pian)

法(fa)兰(lan)(lan)垫(dian)(dian)(dian)(dian)(dian)片(pian)(pian)不(bu)只具有(you)很强(qiang)的(de)(de)(de)(de)耐(nai)腐蚀(shi)能力(li)，而(er)且还可以耐(nai)高温，同时不(bu)容易和(he)酸(suan)(suan)碱(jian)等(deng)(deng)物质(zhi)(zhi)产(chan)生化学反应，另外(wai)还具有(you)良好的(de)(de)(de)(de)柔韧性(xing)，可以有(you)效的(de)(de)(de)(de)保(bao)护(hu)产(chan)品的(de)(de)(de)(de)安全。选购(gou)法(fa)兰(lan)(lan)垫(dian)(dian)(dian)(dian)(dian)片(pian)(pian)的(de)(de)(de)(de)时候，一定要了解(jie)清楚法(fa)兰(lan)(lan)垫(dian)(dian)(dian)(dian)(dian)片(pian)(pian)的(de)(de)(de)(de)材质(zhi)(zhi)和(he)性(xing)能，法(fa)兰(lan)(lan)垫(dian)(dian)(dian)(dian)(dian)片(pian)(pian)的(de)(de)(de)(de)性(xing)能会(hui)(hui)影响到(dao)(dao)法(fa)兰(lan)(lan)垫(dian)(dian)(dian)(dian)(dian)片(pian)(pian)的(de)(de)(de)(de)具体使(shi)用(yong)场合。法(fa)兰(lan)(lan)垫(dian)(dian)(dian)(dian)(dian)片(pian)(pian)的(de)(de)(de)(de)材质(zhi)(zhi)不(bu)同的(de)(de)(de)(de)话，其(qi)耐(nai)腐蚀(shi)性(xing)、耐(nai)热性(xing)、密度等(deng)(deng)也会(hui)(hui)有(you)所区别(bie)，适合使(shi)用(yong)的(de)(de)(de)(de)场合和(he)密封(feng)(feng)(feng)介(jie)质(zhi)(zhi)也会(hui)(hui)不(bu)一样(yang)。选购(gou)法(fa)兰(lan)(lan)垫(dian)(dian)(dian)(dian)(dian)片(pian)(pian)的(de)(de)(de)(de)时候，一般都还需(xu)要考(kao)虑(lv)到(dao)(dao)密封(feng)(feng)(feng)介(jie)质(zhi)(zhi)，而(er)法(fa)兰(lan)(lan)垫(dian)(dian)(dian)(dian)(dian)片(pian)(pian)经常被(bei)用(yong)于水、油、酸(suan)(suan)等(deng)(deng)溶(rong)液(ye)的(de)(de)(de)(de)密封(feng)(feng)(feng)施工(gong)当中，为了确保(bao)密封(feng)(feng)(feng)效果(guo)，就需(xu)要根据被(bei)密封(feng)(feng)(feng)介(jie)质(zhi)(zhi)的(de)(de)(de)(de)实(shi)际温度、酸(suan)(suan)碱(jian)性(xing)、压力(li)等(deng)(deng)情(qing)况来选择适合的(de)(de)(de)(de)垫(dian)(dian)(dian)(dian)(dian)片(pian)(pian)材质(zhi)(zhi)。南京法(fa)兰(lan)(lan)密封(feng)(feng)(feng)垫(dian)(dian)(dian)(dian)(dian)片(pian)(pian)法(fa)兰(lan)(lan)垫(dian)(dian)(dian)(dian)(dian)片(pian)(pian)越来越受到(dao)(dao)各(ge)类(lei)密封(feng)(feng)(feng)行(xing)业的(de)(de)(de)(de)欢迎和(he)大范围(wei)的(de)(de)(de)(de)使(shi)用(yong)。

法(fa)兰垫片可切割制(zhi)作(zuo)而成(cheng)，或(huo)(huo)者(zhe)经(jing)过模塑一次成(cheng)型，有(you)平垫、v字垫，椭(tuo)圆形垫片、活塞环(huan)(huan)(huan)、球阀垫圈，或(huo)(huo)者(zhe)是制(zhi)作(zuo)盘根环(huan)(huan)(huan)，以及(ji)金属(shu)包覆垫的(de)内(nei)环(huan)(huan)(huan)。其(qi)化(hua)学(xue)性质(zhi)稳定，可在零下100℃到100℃的(de)环(huan)(huan)(huan)境下使用，不易腐(fu)蚀，不导(dao)电(dian)，而且(qie)抗老(lao)化(hua)性能比(bi)较(jiao)突出(chu)。并且(qie)是比(bi)较(jiao)干净的(de)密封(feng)材(cai)料，不易污染(ran)设备(bei)(bei)所制(zhi)作(zuo)的(de)材(cai)料，所以一些(xie)化(hua)工(gong)行业(ye)，食(shi)品制(zhi)作(zuo)行业(ye)，还有(you)医疗器械(xie)或(huo)(huo)者(zhe)是药品制(zhi)作(zuo)的(de)设备(bei)(bei)都优先选择法(fa)兰垫片。并且(qie)在化(hua)学(xue)、机械(xie)、五金、食(shi)品、低温液化(hua)气(qi)、压缩气(qi)体(ti)、冷库管道(dao)、电(dian)子科技行业(ye)用途也比(bi)较(jiao)广(guang)。

法兰垫(dian)(dian)(dian)(dian)片可用(yong)于密封受污染(ran)的(de)部件(jian)，垫(dian)(dian)(dian)(dian)片不(bu)会像石墨那样由于氧(yang)化(hua)效(xiao)应而导致(zhi)(zhi)密封应力(li)消失(shi)而导致(zhi)(zhi)密封失(shi)效(xiao)。它具有982°C（1800°F）的(de)温(wen)度，非常适合(he)(he)内(nei)燃机(ji)排气(qi)系统，氮肥处理(li)，高温(wen)蒸汽发(fa)生(sheng)器以及许(xu)多(duo)其(qi)他(ta)高温(wen)条件(jian)。法兰垫(dian)(dian)(dian)(dian)片的(de)材(cai)质(zhi)(zhi)(zhi)不(bu)同(tong)的(de)话，其(qi)耐(nai)腐(fu)蚀性(xing)(xing)(xing)(xing)、耐(nai)热(re)性(xing)(xing)(xing)(xing)、密度等(deng)也(ye)会有所区(qu)别，适合(he)(he)使用(yong)的(de)场合(he)(he)和密封介质(zhi)(zhi)(zhi)也(ye)会不(bu)一样。选购(gou)法兰垫(dian)(dian)(dian)(dian)片的(de)时(shi)候，一般都还(hai)需要(yao)考虑到密封介质(zhi)(zhi)(zhi)，而法兰垫(dian)(dian)(dian)(dian)片经(jing)常被用(yong)于水、油、酸等(deng)溶液的(de)密封施工当中，为了确保密封效(xiao)果，就需要(yao)根据被密封介质(zhi)(zhi)(zhi)的(de)实际温(wen)度、酸碱(jian)性(xing)(xing)(xing)(xing)、压力(li)等(deng)情况来选择适合(he)(he)的(de)垫(dian)(dian)(dian)(dian)片材(cai)质(zhi)(zhi)(zhi)。法兰垫(dian)(dian)(dian)(dian)片耐(nai)高温(wen)性(xing)(xing)(xing)(xing)优于硅橡胶，有较好的(de)耐(nai)候性(xing)(xing)(xing)(xing)、耐(nai)臭氧(yang)性(xing)(xing)(xing)(xing)和耐(nai)化(hua)学性(xing)(xing)(xing)(xing)，耐(nai)寒性(xing)(xing)(xing)(xing)则不(bu)良。

在选(xuan)购(gou)(gou)法(fa)(fa)兰垫(dian)(dian)片(pian)(pian)的(de)(de)(de)时候，还(hai)需要根(gen)据实(shi)(shi)际(ji)使(shi)(shi)用(yong)场(chang)所(suo)的(de)(de)(de)温度来进行选(xuan)择，而(er)实(shi)(shi)际(ji)使(shi)(shi)用(yong)场(chang)所(suo)的(de)(de)(de)温度高度则会导致法(fa)(fa)兰垫(dian)(dian)片(pian)(pian)的(de)(de)(de)密封性能受(shou)到影(ying)响，所(suo)以大(da)家在选(xuan)购(gou)(gou)法(fa)(fa)兰垫(dian)(dian)片(pian)(pian)的(de)(de)(de)时候，尽量(liang)是(shi)选(xuan)择等于或(huo)者(zhe)是(shi)大(da)于实(shi)(shi)际(ji)使(shi)(shi)用(yong)场(chang)所(suo)的(de)(de)(de)温度。法(fa)(fa)兰垫(dian)(dian)片(pian)(pian)规(gui)格是(shi)内径(jing)+外径(jing)+厚(hou)度，有如下加(jia)工方法(fa)(fa)：1、通过(guo)生产聚四(si)氟(fu)(fu)乙烯管材车削加(jia)工成一(yi)定厚(hou)度的(de)(de)(de)垫(dian)(dian)片(pian)(pian)，适合小尺寸(cun)、小批量(liang)。2、通过(guo)一(yi)定厚(hou)度的(de)(de)(de)聚四(si)氟(fu)(fu)乙烯板材切割(ge)而(er)成，适合大(da)中(zhong)小尺寸(cun)、小批量(liang)。3、通过(guo)模具模压(ya)而(er)成，适合大(da)中(zhong)小尺寸(cun)、大(da)批量(liang)。法(fa)(fa)兰垫(dian)(dian)片(pian)(pian)具有很强的(de)(de)(de)耐酸碱性以及各种有机(ji)溶剂性能。南京法(fa)(fa)兰密封垫(dian)(dian)片(pian)(pian)

法(fa)兰(lan)垫片在零下将(jiang)近二百的(de)低(di)温下还能具有(you)很(hen)好的(de)伸长率，具有(you)很(hen)好的(de)耐低(di)温性，机械韧(ren)性好。南京(jing)法(fa)兰(lan)密封垫片

法兰(lan)(lan)垫(dian)片(pian)的(de)(de)耐(nai)(nai)(nai)油(you)(you)、耐(nai)(nai)(nai)溶(rong)剂(ji)、耐(nai)(nai)(nai)燃料油(you)(you)及耐(nai)(nai)(nai)高低温性均(jun)佳。可(ke)以抵挡(dang)含氧(yang)的(de)(de)化合(he)物、含芬芳(fang)烃(ting)的(de)(de)溶(rong)剂(ji)及含氯(lv)的(de)(de)溶(rong)剂(ji)的(de)(de)腐蚀。一(yi)(yi)(yi)般情况(kuang)可(ke)以用(yong)(yong)(yong)(yong)于航空、航天用(yong)(yong)(yong)(yong)途。不(bu)建议暴露(lu)于酮类及刹车油(you)(you)中。一(yi)(yi)(yi)般使(shi)用(yong)(yong)(yong)(yong)温度范围为(wei)-50℃~200℃。四氟(fu)使(shi)用(yong)(yong)(yong)(yong)范围广，只是一(yi)(yi)(yi)般只能使(shi)用(yong)(yong)(yong)(yong)一(yi)(yi)(yi)次，且(qie)需(xu)要受力均(jun)匀。一(yi)(yi)(yi)般非金属(shu)管(guan)道(dao)不(bu)用(yong)(yong)(yong)(yong)，受力不(bu)够(gou)。三元(yuan)乙丙橡胶垫(dian)片(pian)耐(nai)(nai)(nai)碱的(de)(de)性能比耐(nai)(nai)(nai)酸的(de)(de)好一(yi)(yi)(yi)些，一(yi)(yi)(yi)般离子膜32％的(de)(de)碱可(ke)以用(yong)(yong)(yong)(yong)，非金属(shu)管(guan)道(dao)用(yong)(yong)(yong)(yong)的(de)(de)多(duo)，盐水上也多(duo)用(yong)(yong)(yong)(yong)。酸类一(yi)(yi)(yi)般采用(yong)(yong)(yong)(yong)软的(de)(de)PVC，价(jia)格(ge)低一(yi)(yi)(yi)些。南京法兰(lan)(lan)密封(feng)垫(dian)片(pian)

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