Kuwunika kuchuluka
Ngati palibe zina zowonjezera zomwe zafotokozedwa mu mgwirizano wa oda, kuyang'anira kwa wogula kuyenera kukhala ndi izi:
a) Potsatira malamulo a mgwirizano wa dongosolo, gwiritsani ntchito zida zowunikira zosawonongeka ndi njira zowunikira ma valve panthawi ya msonkhano.
b) Kuyang'ana kowonekera kwa mavavu 'kuponyedwa kuyenera kutsata JB/T 7929.
c) "Zovomerezeka" ndi "zosankha" zoyesa kuthamanga.
d) Kuwunika kwina kwina.
e) Unikaninso ma rekodi okonza ndi zolemba zosawonongeka (kuphatikiza zolemba zowunikira zama radiographic).
Zindikirani: Kuyang'anira konse kuyenera kuchitidwa motsatira ndondomeko zolembedwa zomwe zakhazikitsidwa mumiyezo yofananira.
Kuyendera
Wopanga ma valve ayenera kuyang'ana mowoneka pamatupi onse a ma valve, mabonati ndi zinthu zosindikizira kuti ateteze kutsata kwake kwa JB/T 7929.
Wopanga ma valve ayenera kuyang'ana valavu iliyonse kuti atsimikize kuti ikutsatira miyezo yoyenera ndi zinthu zogwirizana nazo.
Zomwe zimafunikira pakuyezetsa kuthamanga
1. Kwa ma valve opangidwa mwapadera omwe amalola kuti mafuta osindikizira adzidzidzi alowetsedwe pamalo osindikizira kapena zigawo zonyamula (kupatulapo ma valve opaka mafuta), jekeseni iyenera kukhala yopanda kanthu komanso yosagwira ntchito panthawi yoyesera.
2. Poyesa ndi madzi, onetsetsani kuti mpweya wa pabowo watsitsidwa.
3. Musanayambe kuyesa chipolopolo cha valve, valavu siyenera kupakidwa utoto kapena kuphimbidwa ndi zokutira zomwe zingabise zolakwika zapamtunda.Phosphating kapena mankhwala ena omwe amagwiritsidwa ntchito kuteteza pamwamba pa valve amaloledwa, koma sayenera kuphimba zolakwika monga kutayikira, mabowo a mpweya kapena matuza.
4. Poyesa kusindikiza pa mavavu a zipata, ma valve a pulagi ndi ma valve a mpira, bowo la thupi pakati pa bonneti ndi malo osindikizira ayenera kudzazidwa ndi sing'anga.Kenako muyenera kukakamiza kuti muyese kupanikizika ndikupewa kudzazidwa pang'onopang'ono kwa magawo omwe ali pamwambawa ndi sing'anga ndi kukakamiza panthawi yoyeserera, komanso kupewa kutayikira kwa chisindikizo.
5. Poyesa kusindikiza, palibe mphamvu yakunja yomwe iyenera kugwiritsidwa ntchito pamapeto a valve yomwe imakhala ndi zotsatira pa kutuluka kwa malo osindikizira.Makokedwe ogwiritsira ntchito kutseka valavu sayenera kupitirira mphindi yotseka mphamvu (torque) ya kapangidwe ka valve.
EC imapereka ntchito zowunikira ma valve ku China ku China.Lumikizanani nafe ngati mukufuna kuwunika bwino zinthu zanu.
Nthawi yotumiza: Jul-09-2021