Kodi mphira wa o-ring ndi chiyani ndipo ndi mtundu wanji wa rabala womwe umagwiritsidwa ntchito mu mphete za o?

Choyamba - chonde onani kukula kwa oring AS568  

Chachiwiri -Kuponderezana ndi kuchuluka kwa kutambasulaorings

O-ring ndi chisindikizo chodziwikiratu.Chiŵerengero cha kuponderezana ndi kutambasula kwapakati pa gawo la O-ring ndizomwe zili mkati mwa mapangidwe osindikizira, omwe ndi ofunika kwambiri pakusindikiza ntchito ndi moyo wautumiki.Kusindikiza kwabwino kwa mphete ya O kumadalira kufananiza koyenera kwa kukula kwa mphete ya O ndi kukula kwa poyambira, kupanga kuponderezana koyenera komanso kutambasula kwa mphete yosindikiza.

1. psinjika mlingo

Mlingo wa compression W nthawi zambiri umawonetsedwa motere:

W=(d0h)/d0× 100%

Mu chilinganizo, d0- m'mimba mwake wa O-mphete mu ufulu boma (mm);

H - Mtunda pakati pa pansi pa O-ring poyambira ndi malo osindikizidwa (kuya kwa groove), mwachitsanzo, kutalika kwa gawo la O-ring pambuyo pa kupanikizana (mm)

2.Posankha kuchuluka kwa kuponderezana kwa mphete ya O, zinthu zitatu zotsatirazi ziyenera kuganiziridwa:

(1).Payenera kukhala malo okwanira osindikizira;(2).Yesetsani kuchepetsa mphamvu ya kukangana;(3).Yesetsani kupewa deformation okhazikika.

Sizovuta kuwona kuchokera pamwambazi kuti pali zotsutsana pakati pawo.Kuponderezana kwakukulu kumatha kulumikizidwa kwambiri, koma kupsinjika kopitilira muyeso kumawonjezera kukangana kotsetsereka komanso kupunduka kosatha.Ngati kuponderezana kuli kochepa kwambiri, kungakhale chifukwa cha kulakwitsa kwa coaxiality ndi zolakwika za O-ring za mtsinje wosindikizira osakwaniritsa zofunikira, zomwe zimapangitsa kuti kuphatikizikako kuwonongeke ndikuyambitsa kutayikira.Choncho, posankha psinjika chiŵerengero cha O-mphete, m'pofunika kuyeza zinthu zosiyanasiyana.Nthawi zambiri, kukakamiza kwa zisindikizo zokhazikika kumakhala kwakukulu kuposa zisindikizo zosunthika, koma mtengo wake wopitilira uyenera kukhala wosakwana 25%.Kupanda kutero, kupsinjika kopsinjika kumapumula kwambiri ndipo kusinthika kokhazikika kudzachitika, makamaka m'malo otentha kwambiri.Kusankhidwa kwa chiŵerengero cha kuponderezedwa kwa W kwa O-ring zisindikizo ziyenera kuganizira momwe zimagwiritsidwira ntchito, monga static kapena dynamic seals;Kusindikiza kwa static kumatha kugawidwa kukhala kusindikiza kwa radial ndi axial kusindikiza;Kusiyana kwa kutayikira kwa zisindikizo za radial (kapena cylindrical static seals) ndiye kusiyana kwa radial, pomwe kusiyana kwa kutayikira kwa axial seals (kapena planar static seals) ndiye kusiyana kwa axial.Kusindikiza kwa Axial kumagawidwa m'zigawo ziwiri kutengera ngati sing'anga yokakamiza imagwira ntchito mkati mwake kapena m'mimba mwake mwa O-ring: kukakamiza kwamkati ndi kukakamiza kwakunja.Kuwonjezeka kwa mphamvu ya mkati kumayambitsa kutambasula, pamene kuthamanga kwa kunja kumachepetsa kutambasula koyamba kwa O-ring.Mitundu yosiyanasiyana ya zisindikizo zosasunthika zomwe zatchulidwa pamwambapa zimakhala ndi mayendedwe osiyanasiyana a sing'anga yosindikizira pa O-ring, kotero mapangidwe a pre pressure nawonso ndi osiyana.Pazisindikizo zosunthika, ndikofunikira kusiyanitsa pakati pa zisindikizo zoyenda mobwerezabwereza ndi zisindikizo zoyenda mozungulira.

(2).Kusindikiza mosasunthika: Monga zida zosindikizira zobwerezabwereza, zida zosindikizira za cylindrical static nthawi zambiri zimatenga W=10% mpaka 15%;Chipangizo chosindikizira chokhazikika chokhazikika chimatenga W = 15% ~ 30%.Kuti asindikize mwamphamvu, akhoza kugawidwa muzochitika zitatu;Kusuntha kobwerezabwereza kumatengedwa ngati W = 10% mpaka 15%.Posankha kuchuluka kwa kuponderezana kwa zisindikizo zoyenda mozungulira, kutentha kwa Joule kuyenera kuganiziridwa.Nthawi zambiri, mkati mwa mphete ya O yomwe imagwiritsidwa ntchito poyenda mozungulira ndi 3% -5% yokulirapo kuposa m'mimba mwake, ndipo kupsinjika kwa m'mimba mwake ndi W = 3% -8%.Pamasewera othamanga otsika, mphete za O nthawi zambiri zimasankhidwa ndi chiŵerengero chocheperako cha W = 5% -8% kuti achepetse kukana.Kuphatikiza apo, kukulitsa kwa zida za mphira zomwe zimayambitsidwa ndi sing'anga ndi kutentha ziyeneranso kuganiziridwa.Nthawi zambiri, kupitilira kupindika komwe kumaperekedwa, kuchuluka kovomerezeka kovomerezeka ndi 15%.Kupitilira izi kukuwonetsa kuti kusankha kwazinthu sikuli koyenera, ndipo mphete za O-zina ziyenera kugwiritsidwa ntchito m'malo mwake, kapena kuponderezedwa kwapang'onopang'ono kumayenera kukonzedwa.

(3)Kuchulukitsa kuchuluka,Pambuyo poyikidwa muzitsulo zosindikizira, O-ring nthawi zambiri imakhala ndi kutambasula kwina.Mofanana ndi kuchuluka kwa kuponderezana, kuchuluka kwa kutambasula kumakhalanso ndi zotsatira zochititsa chidwi pa ntchito yosindikiza komanso moyo wautumiki wa O-ring.Kutambasula kwakukulu sikumangopangitsa kuti zikhale zovuta kuyika O-ring, komanso kumachepetsanso kupanikizika chifukwa cha kusintha kwa gawo lalikulu la d0, zomwe zimayambitsa kutayikira.Kuchulukitsa kwa a kutha kufotokozedwa motere:α= (d+d0)/(d1+d0)Mu chilinganizo, d - kutsinde m'mimba mwake (mm);D1-- M'mimba mwake wa O-ring (mm).Kuchuluka kwa kutambasula ndi 1% -5%.Makhalidwe ovomerezeka a kuchuluka kwa kutambasula kwa O-ring amaperekedwa patebulo.Kuchulukira kwa mphete ya O kungasankhidwe molingana ndi kukula kwa shaft m'mimba mwake molingana ndi malire osankhidwa a tebulo.Kupambana koyambira kwa chiŵerengero cha kuponderezana ndi kuchuluka kwa kutambasula kwa O-ring

Chachitatu - ubale pakati pa awiri amkati (ID), awiri akunja (OD), ndi waya awiri (C / S) wa O-mphete.

OD=ID+C/S*2 Monga : ID=3MM C/S=1MM OD=3MM+1*2=5MM

Chachinayi-Zinthu zomwe zimagwiritsidwa ntchito popanga O-rings

• NBR:NBR O-RING  

ali ndi kukana kwabwino kwa mafuta, kukana kwa benzene, kukana kutentha, komanso mawonekedwe akuthupi komanso amakina, ndipo ndi chimodzi mwazinthu zomwe zimagwiritsidwa ntchito popanga mphira wosamva mafuta.Amagwiritsidwa ntchito kwambiri popanga ma gaskets osamva mafuta, ma gaskets, hose za raba, mabokosi a makalata a ndege, ma CD osinthika, osindikizira ndi utoto wa rabara, zida zamagetsi, ndi zomatira.

• EPDM:EPDM O-RING 

yokhala ndi zida zabwino zamakina, kukana kwamankhwala, komanso kukana kutentha, komanso kuwonetsa kukana kwanyengo.Ethylene propylene diene monomer (EPDM) imawonetsa zinthu zabwino kwambiri potengera kukana kwa ozoni, kukana kutentha, kukana kwanyengo, komanso kufewa pang'ono, ndikupangitsa kuti ikhale yoyenera kugwiritsa ntchito zomwe sizingagwirizane ndi ozoni, kugonjetsedwa ndi nyengo, komanso kugonjetsedwa ndi UV.Komabe, chifukwa cha mawonekedwe ake, kuchedwa kwamoto, kukana kwamafuta, komanso kumamatira kwa rabara ya EPDM ndizosauka.Komabe, mphira wamtunduwu umakhala ndi unyolo waukulu wodzaza ndi unyolo ndipo ukhoza kuphatikizidwa ndi zida zina kuti ugwire bwino ntchito pophunzira kuchokera ku mphamvu ndi zofooka za mnzake.

• VMQ(SILICONE):SILICONE O-RING

 ndi Kutentha ndi kukana mafuta.Rabara ya silicone imakhala yabwino kukana kutentha ndipo imatha kugwira ntchito pa -55℃.Pambuyo pa kukhazikitsidwa kwa phenyl, imatha kufika -73℃.Kukana kutentha kwa mphira wa silikoni ndikopambana, ndipo kumatha kugwira ntchito kwa nthawi yayitali pa 180℃.Imatha kupirira milungu ingapo kapena kupitilira apo ngakhale kupitilira pang'ono 200℃, ndipo imatha kupirira nthawi yomweyo kutentha kwambiri kuposa 300℃.Rabara ya silikoni imakhala ndi mpweya wabwino ndipo kutulutsa kwa okosijeni ndikokwera kwambiri pakati pa ma polima opangidwa.Kuphatikiza apo, mphira wa silikoni ulinso ndi mawonekedwe odziwika bwino a physiological inertness ndipo samayambitsa coagulation, zomwe zimapangitsa kuti zizigwiritsidwa ntchito kwambiri m'chipatala.

•  VITON(FKM FPM):VITON O-RING  

ali ndi kukana kwambiri kutentha, kukana makutidwe ndi okosijeni, kukana kwamafuta, kukana dzimbiri, komanso kukana kukalamba mumlengalenga, ndipo amagwiritsidwa ntchito kwambiri m'magawo monga zamlengalenga, ndege, magalimoto, mafuta, ndi zida zapakhomo.Ndizinthu zofunikira zomwe sizingasinthidwe m'malo mwa mafakitale apamwamba kwambiri a chitetezo cha dziko

•  HNBR:HNBR O-RING

 ali ndi kukana bwino kwa mafuta (kukana bwino kwa mafuta amafuta, mafuta opaka mafuta, zosungunulira zonunkhira);Ndipo chifukwa cha kapangidwe kake kodzaza kwambiri, imakhala ndi kukana kutentha kwabwino, kukana kwa dzimbiri kwamankhwala (kukana bwino kwa Freon, asidi, ndi alkali), kukana bwino kwa ozoni, komanso kupsinjika kwakukulu kokhazikika;Nthawi yomweyo, mphira wa nitrile wa hydrogenated ulinso ndi mawonekedwe monga mphamvu yayikulu, kukana kung'ambika, komanso kukana kuvala bwino kwambiri, zomwe zimapangitsa kuti ikhale imodzi mwama rabara abwino kwambiri potengera magwiridwe antchito.

•  CR(neoprene):CR O-RING

ndi zinthu zabwino zakuthupi ndi zamakina, kukana kwamafuta, kukana kutentha, kukana moto, kukana kuwala kwa dzuwa, kukana kwa ozoni, kukana kwa asidi ndi alkali, komanso kukana kwa mankhwala.Zoyipa zake ndizosakhazikika kuzizira komanso kukhazikika kosungirako.Ili ndi mphamvu zolimba kwambiri, kutalika, crystallinity yosinthika, komanso kumamatira kwabwino.Kugonjetsedwa ndi ukalamba ndi kutentha.Mafuta abwino komanso kukana mankhwala

FVMQ: FVMQ O-RING yokhala ndi zinthu zabwino zakuthupi komanso zamakina komanso kukhazikika kwamankhwala, yotha kugwiritsa ntchito nthawi yayitali pa 200℃ndikugwiritsa ntchito kwakanthawi kochepa pa 250℃;The brittleness point imachokera ku -20℃ku -40℃;Kukana kwapakatikati kwabwino, kukhazikika bwino motsutsana ndi zosungunulira za organic, ma inorganic acid, ndi ma oxidants, makamaka kukana kwa asidi;Ili ndi kukana kwanyengo kwabwino kwambiri komanso kukana kwa ozoni.Pambuyo pokumana ndi mlengalenga kwa zaka zingapo, mphamvu zake zakuthupi ndi zamakina zimasintha pang'ono, ndipo zotsatira zake pa tizilombo tating'onoting'ono zimakhalanso zokhazikika.

•  FEPM (Aflas):FEPM O-RING

ali ndi kukhazikika kwabwino, kukana kwamankhwala, makamaka kukana kuchulukira kwa ma acid, alkali, ndi ma oxidizing amphamvu amitundu yosiyanasiyana yamafuta agalimoto, mafuta opaka, ma brake mafuta, mafuta amchere, ndi mafuta a silikoni, komanso kukana kwambiri madzi amphamvu kwambiri. nthunzi, madzi, ndi kutchinjiriza magetsi.Ili ndi mpweya wochepa ndipo ingagwiritsidwe ntchito pa kutentha pakati pa -400 ndi 200 digiri Celsius

•  FFKM :FFKM O-RING

Ali ndi elasticity ndi kukhazikika kwamafuta ndi mankhwala a polytetrafluoroethylene.Kutalika kwa ntchito kutentha -39 ~ 288 digiri Celsius, yochepa mpaka 315 digiri Celsius, akadali ndi digiri inayake ya plasticity pansi pa kutentha kwa embrittlement, molimba koma osati Chimaona, ndipo akhoza kupindika.Khola mankhwala onse kupatula kutupa mu fulorojeni solvents.ndiye Pakali pano mphira wokwera mtengo kwambiri padziko lonse lapansi.Brand:Kalez

Chachisanu- rabara O-ring specifications Njira zoyezera ndi zida.

Zida zoyezera wamba kukhala:

1-Pulojekiti yolondola kwambiri

Makhalidwe a zida:Muyezo wosalumikizana, womwe umapangitsa kuti muyezo ukhale wosawoneka komanso woyenera kuyeza zokhala ndi mipanda yopyapyala komanso yofewa; Ili ndi ntchito yokulirapo yazithunzi komanso kuthekera koyezera pang'ono pang'ono; Kuthamanga mwachangu kumathandizira kuyeza bwino; Kuchulukana kwakukulu kwa mfundo zoyeserera kumatsimikizira kudalirika kwakukulu kwa kuyeza; Yabwino clamping.

2-Electronic caliper ya digito

Makhalidwe a zida:Chida choyezera utali chomwe chimagwiritsa ntchito makina oyezera monga capacitive ndi maginito grid kuti awonetse miyeso pa digito.Zomwe zimagwiritsidwa ntchito nthawi zambiri ndi 0.01mm, ndi cholakwika chovomerezeka cha ± 0.03mm/150mm.Palinso ma calipers apamwamba kwambiri a digito okhala ndi 0.005mm, ndi cholakwika chovomerezeka cha ± 0.015mm/150mm.Palinso multi-purpose digito anasonyeza micrometer caliper ndi kusamvana 0.001mm (omwe ndi setifiketi dziko Anyi kuyeza zida ndi okhawo akhoza kupanga), ndi chovomerezeka cholakwika ± 0.005mm/50mm.Chifukwa cha kuwerenga mwachidziwitso komanso momveka bwino, kuyeza kwake kumakhala kwakukulu.

3-π wolamulira(PITAPE)

Makhalidwe a zida:

1. Wolamulira π amapangidwa ndi chitsulo chotanuka.Mapeto ake awiri amalembedwa motsatana ndi olamulira akulu ndi othandizira.Mtengo wocheperako womaliza wa wolamulira wamkulu ndi 0.5mm kapena 1mm;Ochepera omaliza maphunziro a wolamulira wothandizira ndi 0.02mm, 0.05mm, 0.01mm, 0.1mm, etc.

2. Mukamagwiritsa ntchito, kulungani π mozungulira chogwiriracho ndikugwiritsa ntchito njira yowerengera yowerengera kuti muwerenge molunjika kukula kwachigawocho.

• Ubwino ndi kuipa kwake

(1).Kulondola kwakukulu: Pamene kukula kwake kumayezedwa kudzera mu circumference ya π wolamulira, cholakwika cholembera pakupanga wolamulira chitha kuchepetsedwa ndi π nthawi ndikuwonekera pazotsatira zake.Chifukwa chake mu φ M'miyeso yayikulu yopitilira 500mm, kulondola kwake ndikwapamwamba kuposa kwa vernier caliper.khalani φ Ubwinowu ndiwowoneka bwino pamiyeso yopitilira 1000mm.

(2).Poyezera zitsulo ndi π wolamulira, sizimakhudzidwa ndi kutentha kwa ntchitoyo.Izi ndichifukwa choti π wolamulira ndi woonda kwambiri, ndipo idzakhala yofanana ndi chidutswa choyesedwa munthawi yochepa kwambiri pakuyezera.Kuonjezera apo, ma coefficients awo owonjezera kutentha ali pafupi kwambiri, makamaka kugonjetsa mphamvu ya kutentha.

(3. Poyezera ma diameter akulu ndi owonjezera, kugwiritsa ntchito zida zothandizira (ma milatho ovomerezeka a maginito) amalola kuti munthu mmodzi azigwira ntchito mosavuta.

(4).Kuyeza ziwalo zokhala ndi mipanda yopyapyala sikophweka kuyambitsa mapindikidwe a ntchitoyo.(5).Yosavuta kunyamula ndi kusunga (6).Mtengo ndi wotsika.

(7).Kuipa: Kulephera kutseka zowerenga;Kupatuka kwa geometric monga ovality sikungayesedwe.

Yachisanu ndi chimodzi O-ring Ntchito ndi o-ring kukhazikitsa.

1. Kugwiritsa ntchito O-ring

O-ring imagwiritsidwa ntchito kwambiri pamalumikizidwe azinthu zosiyanasiyana zama hydraulic ndi pneumatic, ma silinda, ndi mawonekedwe a flange.Kwa mphete za O zomwe zimagwiritsidwa ntchito panthawi yoyendayenda, pamene kupanikizika kwa ntchito kuli kwakukulu kuposa 9.8Mpa ndikugonjetsedwa ndi unidirectional, mphete yosungira iyenera kuikidwa kumbali ina ya O-ring motsatira kupanikizika;Ngati kukakamizidwa kwapawiri, ikani mphete yosungira mbali zonse za O-ring.Kuti muchepetse kukangana, mphete zosungira zokhala ngati mphero zitha kugwiritsidwanso ntchito.Madzi opanikizika akagwiritsidwa ntchito kuchokera kumanzere, mphete yosungira kumanja imakankhidwira mmwamba, ndipo mphete yosungira kumanzere simakhudzana ndi malo osindikizidwa, motero kuchepetsa mphamvu yolimbana.Ponseponse, kugwiritsa ntchito mphete zomangira kumawonjezera mphamvu yakugunda kwa chipangizo chosindikizira, ndipo mphete zomangira zowoneka ngati wedge ndizofunika kwambiri pakuchepetsa mphamvu yakukanganayi.Kwa mphete za O-zokhazikika, mphete yosungira imafunikanso pamene kuthamanga kwa ntchito kuli kwakukulu kuposa 32Mpa.

2. Oring unsembe

Kuyika kwa O-rings kumakhudza kwambiri ntchito yawo yosindikiza komanso moyo wautumiki.Mavuto othawira nthawi zambiri amayamba chifukwa cha kusakhazikika bwino.Panthawi yoyika, sikuloledwa kukhala ndi O-ring scratched, kusalinganika, kapena kupindika.Pamaso msonkhano, kusindikiza poyambira ndi kusindikiza mating pamwamba ayenera mosamalitsa kutsukidwa;Pa nthawi yomweyi, perekani mafuta odzola pamwamba omwe amayenera kudutsa panthawi ya msonkhano wa O-ring. º mpaka 30 º kutsogolo-mu ngodya iyenera kusiyidwa kumapeto kwa shaft ndi kumapeto kwa dzenje la unsembe.Pamene O-ring ikufunika kudutsa ulusi wakunja, chingwe chowongolera chachitsulo chochepa kwambiri chiyenera kugwiritsidwa ntchito kuphimba ulusi wakunja;Ngati mphete ya O ikufunika kudutsa potuluka, tsinde liyenera kutembenuzidwa kukhala lofanana ndi diagonal kuti zisawonongeke pa O-ring.Malo otsetsereka a poyambira nthawi zambiri amakhala = 120 º~140 º

Mutha kuphunzira zambiri zokhudzana ndi izi kuchokera pano.Pambuyo pake, tikuwonetsa zambiri zazisindikizo za mafuta, hydraulic seal,kapena zinamakonda mbali mphira,mongaChisindikizo cha mafuta amphaka, Mafuta a NBR, FKM mafuta chisindikizo,TC mafuta chisindikizo, TB mafuta chisindikizo TA mafuta chisindikizo, SC mafuta chisindikizo SB mafuta chisindikizo,piston chizindikiro, chisindikizo ,masika chisindikizo ,chisindikizo chomangika, u cup seal, fust seal,Wiper chizindikiro,valani mphete, onjezerani mphete,mphira zingwe, zingwe za o-ring,choncho tikufunika nthawi yochulukirapo kuti tidziwitse chidziwitsochi kwa aliyense.Zikomo chifukwa cha nthawi yanu!