201 202 310S 304 316 Wopanga chitoliro chokongoletsera chopangidwa ndi chitsulo chosapanga dzimbiri
Kagawidwe ka mipope ulusi:
NPT, PT, ndi G zonse ndi ulusi wamapaipi.NPT ndi ulusi wa 60 ° taper wapaipi womwe uli wa American standard ndipo umagwiritsidwa ntchito ku North America.Miyezo ya dziko imapezeka mu GB/T12716-2002m.
PT ndi ulusi wa 55 ° wosindikizidwa, womwe ndi mtundu wa ulusi wa Wyeth ndipo umagwiritsidwa ntchito kwambiri ku mayiko a ku Ulaya.Mlingo ndi 1:16.Miyezo ya dziko imapezeka mu GB/T7306-2000.(Zomwe zimagwiritsidwa ntchito kwambiri pakutentha kwambiri, makina othamanga kwambiri komanso makina opaka mafuta)
G ndi ulusi wosasindikiza wa 55 ° wopanda ulusi, womwe ndi mtundu wa ulusi wa Wyeth.Zolembedwa ngati G zikuyimira ulusi wozungulira.Miyezo ya dziko imapezeka mu GB/T7307-2001 (yomwe imagwiritsidwa ntchito kwambiri pamapaipi amadzi ndi gasi omwe ali ndi mphamvu yochepera 1.57MPa).G ndi dzina lambiri la ulusi wa chitoliro, womwe umadziwika kuti chitoliro chozungulira.Ndiye kuti, ulusi umakonzedwa ndi cylindrical surface.ZG imadziwika kuti chitoliro cha chitoliro, ndiko kuti, ulusi umapangidwa ndi conical pamwamba, ndipo muyezo wadziko lonse umalembedwa kuti Rc (ulusi wamkati wa chitoliro chamkati).Ulusi wa G ndi Rp ndi ulusi wa 55° cylindrical pipe.Rp ndi dzina la code ya ISO.
Gawo la GB la muyezo waku China ndi wofanana ndi muyezo wapadziko lonse lapansi wa ISO.Zambiri ndi izi:
1. Kukwanira kwa cylindrical ulusi wamkati (Rp) ndi ulusi wakunja wopindika (R1), womwe umatchedwa "column/cone fit", nambala ya dziko langa GB/T7306.1-2000, yomwe mofanana ndi muyezo wapadziko lonse wa ISO7-1 : "Column/cone fit" mu 1994 "ulusi wa chitoliro wosindikizidwa ndi ulusi";
2. Kukwanira kwa ulusi wamkati (Rc) ndi ulusi wakunja (R2), womwe umatchedwa "cone/cone fit", chiwerengero cha dziko lathu ndi GB/T7306.2-2000, chomwe chimagwirizananso ndi muyezo wapadziko lonse wa ISO7- 1 : The "cone/cone fit" mu 1999 "paipi yosindikizidwa ndi ulusi";
3. Kukwanira kwa cylindrical internal thread (G) ndi cylindrical external thread (G) kumatchedwa "column/column fit".Nambala yokhazikika ya dziko lathu ndi GB/T7307-2001 "55 ° ulusi wosamata wa chitoliro".Mulingo uwu ndi wofanana Gawo loyamba la muyezo wapadziko lonse lapansi wa ISO228-1: 1994 "Ulusi wa mapaipi osasindikizidwa" ndi "Dimensional tolerance and marking", koma miyezo ya dziko langa simalimbikitsa kugwiritsa ntchito ulusi wamapaipi osindikizidwa ndi ulusi wamapaipi osasindikizidwa. , ndiye (Rp /G);
1. Madzi ozizira ndi ma ngalande amatengera kulumikizana kwa ulusi pamene m'mimba mwake ndi wosakwana kapena wofanana ndi 50mm.
2. Makina opangira zitoliro amagwiritsidwa ntchito pokonza ulusi ndipo mafuta apadera opangira makina amagwiritsidwa ntchito popaka mafuta.Madzi kapena zakumwa zina siziloledwa m'malo mwa mafuta.
3. Mafuta a lead ndi waya wa hemp amagwiritsidwa ntchito posindikiza ndi kulongedza mapaipi, ndipo tepi ya Teflon imagwiritsidwa ntchito polumikizana ndi zida.Sichiloledwa kubweretsa kulongedza mu chitoliro pamene kumangitsa ulusi.
4. Kudula kwa chitoliro kuyenera kuchitidwa ndi chodula kapena hacksaw.Oxygen acetylene kapena makina odulira saloledwa.Kupatuka kwapang'onopang'ono kwa nkhope yodulidwa sikuyenera kukhala yayikulu kuposa 1% yakunja kwa chitoliro, ndipo sayenera kupitirira 3mm.
5. Pofuna kuonetsetsa kuti makulidwe ochepera a khoma la muzu wa ulusi, uyenera kukhala wokhazikika pakatikati pa mapeto a gawo la chitoliro, ndipo kupatuka kwa ulusi wa axial ndi kupendekeka kwa ulusi wa chitoliro kuyenera kuyendetsedwa mosamalitsa, chifukwa. kaya ndi axial parallel kupatuka kapena axial tilt kupatuka, Onse kwambiri kuchepetsa makulidwe a khoma chitoliro, potero kuchepetsa mphamvu ya chitoliro.
Kupatuka kovomerezeka kwa ulusi wa chitoliro
Kupatuka mwadzina (mm) Kupatuka kofananira (mm) Kupendekera kopendekera (mm)
1 ≤32 0.3 0.3/100
2 40~65 0.4 0.4/100
3 80~100 0.5 0.5/100
4 125~150 0.6 0.5/100
6. Pambuyo pokonza chitoliro cha ulusi, yang'anani ndi chida choyezera cha ulusi.Ngati pali zopangira zitoliro zamtundu womwewo, ndikwabwino kufananiza zopangira zitoliro.Mlingo wa kutayikira umangofunika kumenyedwera ndi dzanja, ndipo sayenera kukhala yotayirira kwambiri ngati zida za chitoliro zilowetsedwamo. Ngati mutamatira, mutha kugogoda mozungulira chitolirocho ndi chikhadabo chamatabwa.Ngati sichingalowedwebe mkati kapena wonongayo imakhala yolimba, ikhoza kuchotsedwa.Kuwombera mokakamiza sikuloledwa.
7. Ulusi wa ulusi uyenera kukhala waukhondo komanso wokhazikika.Ulusi wosweka kapena wosowa suyenera kupitirira 10% ya chiwerengero chonse cha ulusi.Zosanjikiza zamagalasi zakunja kwa payipi ziyenera kutetezedwa.Ziwalo zomwe zawonongeka mderalo ziyenera kuthandizidwa ndi anti-corrosion treatment.
8. Kulumikizana kwa ulusi Muzu wa ulusi wa chitoliro mutatha kuyika chitolirocho uyenera kukhala ndi ulusi wowonekera 2-3, ndipo waya wochuluka wa hemp uyenera kutsukidwa ndikuchiritsidwa ndi mankhwala oletsa dzimbiri.
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