Ma valve oponya ndi ma valve opangidwa ndi kuponyera.Kawirikawiri, kupanikizika kwa ma valve oponyedwa ndi otsika kwambiri (monga PN16, PN25, PN40, koma palinso othamanga kwambiri, omwe amatha kufika ku 1500Lb, 2500Lb), ndipo ma calibers awo ambiri ali pamwamba pa DN50.Mavavu abodza amapangidwa ndipo amagwiritsidwa ntchito pamapaipi apamwamba kwambiri okhala ndi ma caliber ang'onoang'ono, nthawi zambiri amakhala pansi pa DN50.
1. Kuponya
1. Kuponya: Ndi njira yosungunula zitsulo mumadzimadzi zomwe zimakwaniritsa zofunikira zina ndikuzitsanulira mu nkhungu.Pambuyo pozizira, kulimbitsa, ndi kuyeretsa, kuponyera (gawo kapena chopanda kanthu) chokhala ndi mawonekedwe okonzedweratu, kukula kwake ndi ntchito zimapezedwa.Ukadaulo woyambira wamakampani amakono opanga makina.
2. Ubweya wopangidwa ndi chitsulo umakhalanso wotsika mtengo, ndipo ukhoza kusonyeza mphamvu zake zachuma kwa magawo omwe ali ndi mawonekedwe ovuta, makamaka okhala ndi zovuta zamkati;pa nthawi yomweyo, ali lonse kusinthasintha ndi bwino mabuku mawotchi katundu.
3. Zida (monga zitsulo, nkhuni, mafuta, zipangizo zowonetsera, etc.) ndi zipangizo (monga ng'anjo zazitsulo, zosakaniza mchenga, makina opangira, makina opangira makina, makina ogwedeza, makina owombera, mbale zachitsulo, etc.) chofunika popanga kupanga ) Ndi yochuluka, ndipo idzatulutsa fumbi, mpweya woipa ndi phokoso ndikuwononga chilengedwe.
4. Kuponya ndi mtundu waukadaulo wazitsulo wopangira matenthedwe omwe anthu adawadziwa kale, ndi mbiri ya zaka pafupifupi 6000.
Mu 3200 BC, achule amkuwa adawonekera ku Mesopotamiya.Pakati pa zaka za m'ma 1300 BC ndi zaka za zana la 10 BC, dziko la China lalowa m'masiku otsogola opanga zinthu zamkuwa.
Lusoli lafika pamlingo wapamwamba kwambiri, monga 875 kg Simuwu Fangding Ding kuchokera ku Shang Dynasty, mbale ya Zenghou Yizun kuchokera ku Warring States Period, ndi galasi lowoneka bwino lochokera ku Western Han Dynasty onse akuyimira kuponya kwakale.
mankhwala.Kuumba koyambirira kunasonkhezeredwa kwambiri ndi mbiya, ndipo zambiri mwa zoumbazo zinali zida kapena ziwiya zopangira ulimi, chipembedzo, ndi moyo.
Mtundu waluso ndi wamphamvu.Mu 513 BC, China adaponya chitsulo choyamba padziko lonse lapansi (pafupifupi 270 kilogalamu kulemera kwake), chomwe chimapezeka m'mabuku olembedwa.
Cha m'zaka za m'ma 8th, ku Ulaya kunayamba kupanga zitsulo.Pambuyo pa Revolution Revolution m'zaka za zana la 18, ochita masewerawa adalowa nthawi yatsopano yotumikira ku mafakitale akuluakulu.
M'zaka za zana la 20, chitukuko chofulumira cha kuponyera chapangidwa.Nodular cast iron, malleable cast iron, Ultra-low carbon stainless steel, aluminium copper, aluminium silikoni, ndi aluminium-magnesium alloys apangidwa motsatizana.
Kuponyera zitsulo monga titaniyamu opangidwa ndi nickel-based alloys, ndipo adatulukira njira yatsopano yopangira chitsulo chotuwa.Pambuyo pa zaka za m'ma 1950, kutengera mchenga wonyowa wothamanga kwambiri kunawonekera,
Chemical kuuma mchenga modelling ndi core kupanga, negative pressure modeling, kuponyera kwina kwapadera, kuwombera mfuti ndi matekinoloje ena atsopano.
5. Pali mitundu yambiri yoponyera, yomwe imagawidwa kukhala: ①Kuponya mchenga wamba, kuphatikiza mitundu 3 ya mchenga wobiriwira, mchenga wouma ndi mchenga wouma ndi mankhwala.②Kuponyedwa kwapadera, malinga ndi zinthu zowonetsera, kungagawidwe mwapadera ndi mchenga wamchere wamchere ndi miyala ngati chinthu chachikulu chowonetsera (monga kuponya ndalama, kuponya dongo, kuponyera zipolopolo zochitira msonkhano, kuponyera koyipa, kuponyera kolimba, kuponyera ceramic) Etc.) ndi kuponyedwa kwapadera ndi zitsulo monga chinthu chachikulu cha nkhungu (monga chitsulo choponyera nkhungu, kuponyera kuthamanga, kuponyera kosalekeza, kuponyera kochepa, kuponyera kwa centrifugal, etc.).
6. Njira yoponyera nthawi zambiri imaphatikizapo: ①Kukonzekera kwa nkhungu (zotengera zomwe zimapanga zitsulo zamadzimadzi kukhala zolimba).Zitha kugawanika kukhala mchenga, zitsulo, ceramic, dongo, graphite, etc., malinga ndi kuchuluka kwa ntchito.Kwa zotayidwa, zokhazikika komanso zokhazikika, ubwino wa kukonzekera nkhungu ndi chinthu chachikulu chomwe chimakhudza khalidwe la castings;②Kusungunuka ndi kutsanuliridwa kwa zitsulo zotayidwa, zitsulo zotayidwa (zotayira) makamaka zimaphatikizapo chitsulo chosungunuka, chitsulo chosungunula ndi zotayira zopanda chitsulo;③ Kuponyera kukonza ndi kuyendera.Kuponyera zinthu kumaphatikizapo kuchotsa matupi akunja pachimake ndi pamwamba pa ma castings, kuchotsedwa kwa zokwera, kupopera ma burrs ndi ma drape seams, komanso chithandizo cha kutentha, kuumba, mankhwala odana ndi dzimbiri ndi makina okhwima.Lowetsani valavu yapampu

Nortech ndi m'modzi mwa otsogola opanga ma valve ku China omwe ali ndi chiphaso cha ISO9001.

Zogulitsa zazikulu:Valve ya Butterfly,Valve ya Mpira,Chipata cha Chipata,Onani Vavu,Globe Vavlve,Y-Strainers,Electric Acurator,Pneumatic Acurators .