O型(xing)(xing)圈(quan)(quan)(quan)的(de)(de)(de)安(an)装质量对(dui)其密(mi)封性和(he)使(shi)用(yong)寿命均有重要的(de)(de)(de)影响。泄(xie)漏问(wen)题往(wang)往(wang)是因为安(an)装不(bu)良而造成的(de)(de)(de)。安(an)装过程中不(bu)允许出现O型(xing)(xing)圈(quan)(quan)(quan)被划伤和(he)位置安(an)装不(bu)正(zheng)，以(yi)及O型(xing)(xing)圈(quan)(quan)(quan)被扭(niu)曲等情况。装配(pei)前，密(mi)封沟槽、密(mi)封配(pei)合(he)面(mian)必须严格清洗；同时(shi)对(dui)O型(xing)(xing)圈(quan)(quan)(quan)装配(pei)中要通过的(de)(de)(de)表面(mian)涂(tu)敷润滑脂。为了防止O型(xing)(xing)圈(quan)(quan)(quan)在安(an)装时(shi)被尖(jian)角和(he)螺(luo)纹(wen)等锐边切(qie)伤或划伤，应(ying)(ying)在安(an)装的(de)(de)(de)轴端和(he)孔(kong)端留(liu)有15º～30º的(de)(de)(de)引入角。当O型(xing)(xing)圈(quan)(quan)(quan)需通过外(wai)螺(luo)纹(wen)时(shi)，应(ying)(ying)使(shi)用(yong)的(de)(de)(de)薄壁金属导套，套住外(wai)螺(luo)纹(wen)；如果O型(xing)(xing)圈(quan)(quan)(quan)需通过孔(kong)口时(shi)，应(ying)(ying)使(shi)孔(kong)口倒成相应(ying)(ying)的(de)(de)(de)斜角形状，以(yi)防O型(xing)(xing)圈(quan)(quan)(quan)被划伤。坡口的(de)(de)(de)斜角一(yi)般为a=120º～140ºO型(xing)(xing)圈(quan)(quan)(quan)，就选无(wu)锡鼎正(zheng)新(xin)材料，让您满意，期待您的(de)(de)(de)光临(lin)！滨州汽(qi)车O型(xing)(xing)圈(quan)(quan)(quan)尺寸(cun)

橡胶密封(feng)圈(quan)材(cai)(cai)质种类(lei)(lei)及O型(xing)圈(quan)配方设计：1、NBR丁(ding)(ding)腈(jing)橡胶密封(feng)圈(quan)：适合于(yu)(yu)(yu)石油(you)(you)(you)系(xi)液压(ya)油(you)(you)(you)、甘醇(chun)系(xi)液压(ya)油(you)(you)(you)、二酯系(xi)润滑(hua)油(you)(you)(you)、汽油(you)(you)(you)、水(shui)、硅(gui)润滑(hua)脂、硅(gui)油(you)(you)(you)等介质中使(shi)用(yong)。是(shi)目(mu)前用(yong)途较广、成本较低的(de)(de)(de)橡胶密封(feng)件。不适用(yong)于(yu)(yu)(yu)极性(xing)溶(rong)剂之中，例如酮(tong)类(lei)(lei)、臭氧、硝基烃、MEK和氯(lv)仿。一般(ban)使(shi)用(yong)温(wen)度范围(wei)为(wei)(wei)－40～120℃。2、HNBR氢化丁(ding)(ding)腈(jing)橡胶密封(feng)圈(quan)：具有(you)较佳的(de)(de)(de)抗腐蚀、抗撕裂和抗压(ya)缩变(bian)形特(te)性(xing)，耐(nai)臭氧、耐(nai)阳光(guang)、耐(nai)天候性(xing)较好。比(bi)丁(ding)(ding)腈(jing)橡胶有(you)更佳的(de)(de)(de)抗磨性(xing)。适用(yong)于(yu)(yu)(yu)洗涤机械(xie)、汽车发动机系(xi)统。不建议使(shi)用(yong)于(yu)(yu)(yu)醇(chun)类(lei)(lei)、酯类(lei)(lei)或(huo)是(shi)芳香族的(de)(de)(de)溶(rong)液中。一般(ban)使(shi)用(yong)温(wen)度范围(wei)为(wei)(wei)－40～150℃。湛江丁(ding)(ding)氰橡胶O型(xing)圈(quan)设计无锡(xi)鼎正新材(cai)(cai)料为(wei)(wei)您(nin)提(ti)供专业的(de)(de)(de)O型(xing)圈(quan)。

对于O型圈(quan)动(dong)(dong)密(mi)(mi)(mi)(mi)(mi)封(feng)则要区分是往(wang)复(fu)运(yun)动(dong)(dong)密(mi)(mi)(mi)(mi)(mi)封(feng)还是旋转(zhuan)(zhuan)运(yun)动(dong)(dong)密(mi)(mi)(mi)(mi)(mi)封(feng)。1．静(jing)密(mi)(mi)(mi)(mi)(mi)封(feng)：圆柱静(jing)密(mi)(mi)(mi)(mi)(mi)封(feng)装置和往(wang)复(fu)运(yun)动(dong)(dong)式密(mi)(mi)(mi)(mi)(mi)封(feng)装置一(yi)(yi)(yi)(yi)样，一(yi)(yi)(yi)(yi)般(ban)取(qu)W=10%～15%；平面静(jing)密(mi)(mi)(mi)(mi)(mi)封(feng)装置取(qu)W=15%～30%。2．对于动(dong)(dong)密(mi)(mi)(mi)(mi)(mi)封(feng)而言，可以分为(wei)三种情况；往(wang)复(fu)运(yun)动(dong)(dong)一(yi)(yi)(yi)(yi)般(ban)取(qu)W=10%～15%。旋转(zhuan)(zhuan)运(yun)动(dong)(dong)密(mi)(mi)(mi)(mi)(mi)封(feng)在选取(qu)压(ya)缩(suo)(suo)率(lv)(lv)时(shi)必须要考虑(lv)焦耳(er)热效应，一(yi)(yi)(yi)(yi)般(ban)来(lai)说(shuo)，旋转(zhuan)(zhuan)运(yun)动(dong)(dong)用O形(xing)圈(quan)的内径(jing)要比轴径(jing)大(da)3%-5%，外径(jing)的压(ya)缩(suo)(suo)率(lv)(lv)W=3%-8%。低(di)摩(mo)擦(ca)运(yun)动(dong)(dong)用O型圈(quan)，为(wei)了(le)减(jian)少(shao)摩(mo)擦(ca)阻(zu)力，一(yi)(yi)(yi)(yi)般(ban)均(jun)选取(qu)较小(xiao)的压(ya)缩(suo)(suo)率(lv)(lv)，即W=5%-8%，此外，还要考虑(lv)到介质和温(wen)度(du)引起的橡胶材(cai)料(liao)膨(peng)胀(zhang)。通(tong)常在给定的压(ya)缩(suo)(suo)变形(xing)之外，允许的比较大(da)膨(peng)胀(zhang)率(lv)(lv)为(wei)15%，超过(guo)这一(yi)(yi)(yi)(yi)范围说(shuo)明(ming)材(cai)料(liao)选用不合适(shi)，应改用其他材(cai)料(liao)的O形(xing)圈(quan)，或(huo)对给定的压(ya)缩(suo)(suo)变形(xing)率(lv)(lv)予以修正。

橡(xiang)(xiang)胶密(mi)封圈(quan)(quan)材质种(zhong)类(lei)(lei)及(ji)(ji)O型(xing)圈(quan)(quan)配方设计(ji)：1.SIL硅橡(xiang)(xiang)胶密(mi)封圈(quan)(quan)：具(ju)有(you)(you)较佳(jia)的(de)耐(nai)(nai)热、耐(nai)(nai)寒、耐(nai)(nai)臭(chou)氧(yang)、耐(nai)(nai)大气老化(hua)性(xing)(xing)能(neng)。有(you)(you)很好(hao)的(de)绝缘(yuan)性(xing)(xing)能(neng)。但(dan)抗拉(la)强度较一般橡(xiang)(xiang)胶差且不(bu)具(ju)耐(nai)(nai)油(you)性(xing)(xing)。适用(yong)(yong)(yong)于(yu)(yu)家用(yong)(yong)(yong)电(dian)(dian)器如电(dian)(dian)热水(shui)器、电(dian)(dian)熨(yun)斗、微波炉(lu)等。还适用(yong)(yong)(yong)于(yu)(yu)各种(zhong)与人体(ti)有(you)(you)接(jie)触的(de)用(yong)(yong)(yong)品，如水(shui)壶、饮水(shui)机等。不(bu)建议(yi)使用(yong)(yong)(yong)于(yu)(yu)大部份(fen)浓(nong)缩溶(rong)(rong)剂、油(you)品、浓(nong)酸及(ji)(ji)氢氧(yang)化(hua)钠中。一般使用(yong)(yong)(yong)温(wen)度范围为－55～250℃。2.VITON氟素(su)橡(xiang)(xiang)胶密(mi)封圈(quan)(quan)：耐(nai)(nai)高温(wen)性(xing)(xing)优于(yu)(yu)硅橡(xiang)(xiang)胶，有(you)(you)较佳(jia)的(de)耐(nai)(nai)候性(xing)(xing)、耐(nai)(nai)臭(chou)氧(yang)性(xing)(xing)和耐(nai)(nai)化(hua)学性(xing)(xing)，耐(nai)(nai)寒性(xing)(xing)则不(bu)良。对(dui)于(yu)(yu)大部份(fen)油(you)品及(ji)(ji)溶(rong)(rong)剂都(dou)具(ju)有(you)(you)抵抗能(neng)力，尤其(qi)是酸类(lei)(lei)、脂族烃(ting)、芳香(xiang)烃(ting)及(ji)(ji)动植(zhi)物油(you)。适用(yong)(yong)(yong)于(yu)(yu)柴油(you)发(fa)动机、燃(ran)料系统(tong)及(ji)(ji)化(hua)工厂的(de)密(mi)封需(xu)求。不(bu)建议(yi)使用(yong)(yong)(yong)于(yu)(yu)酮类(lei)(lei)、低分子量的(de)酯(zhi)类(lei)(lei)及(ji)(ji)含(han)硝的(de)混合物。一般使用(yong)(yong)(yong)温(wen)度范围为－20～250℃。O型(xing)圈(quan)(quan)，就选(xuan)无锡鼎正新材料，用(yong)(yong)(yong)户的(de)信赖(lai)之(zhi)选(xuan)，欢迎您的(de)来电(dian)(dian)哦！

O型(xing)(xing)圈(quan)(quan)在(zai)多(duo)种液(ye)压(ya)(ya)(ya)、气动件管接头、圆筒面(mian)及法兰面(mian)等结合(he)处被(bei)普遍使用。对(dui)(dui)于(yu)在(zai)运动过程(cheng)中使用的(de)O型(xing)(xing)圈(quan)(quan)，当工作压(ya)(ya)(ya)力(li)(li)大于(yu)9.8Mpa时(shi)(shi)，如单向受压(ya)(ya)(ya)，就在(zai)O型(xing)(xing)圈(quan)(quan)受压(ya)(ya)(ya)力(li)(li)方(fang)向的(de)另(ling)一侧(ce)设置一个(ge)挡(dang)圈(quan)(quan)；如双向受压(ya)(ya)(ya)，则在(zai)O型(xing)(xing)圈(quan)(quan)两(liang)侧(ce)各(ge)放一个(ge)挡(dang)圈(quan)(quan)。为(wei)了(le)减小摩擦(ca)力(li)(li)，也(ye)可(ke)采(cai)用楔型(xing)(xing)挡(dang)圈(quan)(quan)。当压(ya)(ya)(ya)力(li)(li)液(ye)体从左方(fang)施(shi)加(jia)作用时(shi)(shi)，右方(fang)挡(dang)圈(quan)(quan)被(bei)推起，左方(fang)挡(dang)圈(quan)(quan)不与被(bei)密封(feng)表面(mian)接触，因此摩擦(ca)力(li)(li)减小。总(zong)的(de)来说，采(cai)用挡(dang)圈(quan)(quan)会增(zeng)大密封(feng)装置的(de)摩擦(ca)力(li)(li)，而(er)楔型(xing)(xing)挡(dang)圈(quan)(quan)对(dui)(dui)减小这(zhei)种摩擦(ca)力(li)(li)具有十分重要(yao)的(de)意义。对(dui)(dui)于(yu)固定用的(de)O型(xing)(xing)圈(quan)(quan)，当工作压(ya)(ya)(ya)力(li)(li)大于(yu)32Mpa时(shi)(shi)，也(ye)需要(yao)使用挡(dang)圈(quan)(quan)。苏州聚四氟O型(xing)(xing)圈(quan)(quan)批发，请联(lian)系无(wu)锡鼎正(zheng)新材。漯河蝶阀O型(xing)(xing)圈(quan)(quan)厂家

山东聚氨(an)酯O型(xing)圈(quan)批发，请联(lian)系(xi)无锡鼎正(zheng)新(xin)材。滨(bin)州汽车O型(xing)圈(quan)尺寸

垫(dian)(dian)片(pian)选用：1.、进口设备（包括仪(yi)器(qi)仪(yi)表）上垫(dian)(dian)片(pian)更换(huan)(huan)原(yuan)则是型式(shi)(shi)及(ji)材料(liao)原(yuan)样更换(huan)(huan)。因特殊原(yuan)因垫(dian)(dian)片(pian)形式(shi)(shi)或材料(liao)需更换(huan)(huan)时(shi)，需经审批。2.、垫(dian)(dian)片(pian)的(de)(de)型式(shi)(shi)和(he)材料(liao)应(ying)(ying)根(gen)据流体、使(shi)用工况（压力、温度(du)）以(yi)及(ji)法兰(lan)(lan)接头的(de)(de)密(mi)封要(yao)(yao)求选用。法兰(lan)(lan)密(mi)封面(mian)型式(shi)(shi)和(he)表面(mian)粗糙(cao)度(du)应(ying)(ying)与垫(dian)(dian)片(pian)的(de)(de)型式(shi)(shi)和(he)材料(liao)相适应(ying)(ying)。3.、石(shi)(shi)棉或柔(rou)性石(shi)(shi)墨垫(dian)(dian)片(pian)用于不锈钢或镍基(ji)合金法兰(lan)(lan)时(shi)，垫(dian)(dian)片(pian)材料(liao)中的(de)(de)氯离(li)子含量(liang)不得超过(guo)50PPm。4.、柔(rou)性石(shi)(shi)墨材料(liao)用于氧化性介质时(shi)，较高使(shi)用温度(du)应(ying)(ying)不超过(guo)450℃。5.、公称压力小于或等于1.6MPa的(de)(de)法兰(lan)(lan)，采用缠绕式(shi)(shi)垫(dian)(dian)片(pian)、金属包覆垫(dian)(dian)片(pian)等半金属垫(dian)(dian)或金属环垫(dian)(dian)时(shi)，应(ying)(ying)选用带颈(jing)对焊法兰(lan)(lan)等刚性较大的(de)(de)法兰(lan)(lan)结构型式(shi)(shi)（非常(chang)重(zhong)要(yao)(yao)）。滨州汽(qi)车O型圈尺寸

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