Kodi mungasankhe bwanji zinthu za WCB/LCB/LCC/WC6/WC za valavu?

W amatanthauza kulemba, kuponya;

C-CARBON STEEL Chitsulo cha carbon, A, b, ndi C chimasonyeza mphamvu ya mtundu wa chitsulo kuyambira pansi mpaka pamwamba.

WCA, WCB, WCC zikuyimira chitsulo cha kaboni, chomwe chili ndi ntchito yabwino yowotcherera komanso mphamvu ya makina. ABC ikuyimira mulingo wa mphamvu, yomwe imagwiritsidwa ntchito kwambiri ndi WCB. Chitoliro chofanana ndi WCB chiyenera kukhala A106B, ndipo chopangira chofanana ndi A105. Choyenera kugwiritsa ntchito ma valve pansi pa kutentha ndi kupanikizika kwachizolowezi.

WC6 ndi chitsulo chopangidwa ndi alloy. Chili ndi mphamvu zabwino kwambiri zotsutsana ndi kutentha kwambiri komanso zotsutsana ndi ma antioxidants ndipo chimagwiritsidwa ntchito pa ma valves omwe ali ndi kutentha kwambiri komanso kuthamanga kwambiri.

Zipangizo zofananira za mapaipi ndi pafupifupi A355 P11, ndipo gawo lopangira ndi A182 F11;

Kuphatikiza apo, pali WC9, chitsulo cha alloy chotentha kwambiri, chofanana ndi pafupifupi A355 P22, ndipo chopangiracho chiyenera kufanana ndi A182 F22.

Chotsukira chopangidwa ndi WC chili ndi mphamvu zambiri komanso kuuma. Choyenera kugwiritsidwa ntchito m'mafakitale wamba.

Chitsulo cha kaboni chotsika kutentha chili ndi kulimba kochepa komanso kukana dzimbiri. Ndi choyenera kugwiritsidwa ntchito kutentha kochepa kwambiri, monga gasi wachilengedwe wa LPG (LNG).

Ma valve a Zfa amapanga ma valve a gulugufe a WCB omwe amagwiritsidwa ntchito ndi makasitomala padziko lonse lapansi omwe ali ndi kutentha kofanana, ndipo titha kupanga ma valve a gulugufe a LCC kwa makasitomala ochokera kumpoto kwa Europe monga Russia, Finland ndi zina zotero.

pamwambapa pali WCBValavu ya gulugufe ya China yopyapyalandi LCCGulugufe wa ku Chinavalavu.

Zopangira zitsulo za kaboni ndi zinthu zopangidwa zomwe zimagwiritsidwa ntchito kwambiri mu ma valve

Magiredi azinthu zachitsulo zotentha kwambiri komanso kutentha koyenera

Matebulo oyerekeza zinthu za ASTM omwe amagwiritsidwa ntchito kwambiri mu ma valve (ASME B16.5)

Chidziwitso: 1) kapangidwe ka zinthu za thupi la valavu yopangidwa ndi valavu yolimba, yosavuta kukhala ndi zolakwika, miyeso ya kapangidwe siili ndi zoletsa za nkhungu, magwiridwe antchito odalirika, omwe amagwiritsidwa ntchito kwambiri popanga mavavu amphamvu, mpweya wabwino, mainchesi ang'onoang'ono kapena mavavu ena ang'onoang'ono popanga mavavu amphamvu, amphamvu kwambiri kapena otsika kapena apadera pogwiritsa ntchito forging; kuponyera nthawi zambiri kumagwiritsidwa ntchito kokha pa mavavu apakati ndi otsika, ndipo kumagwiritsidwa ntchito popanga mavavu olimba pakupanga zinthu zambiri.

(2) Kusiyana kwa zinthu A351 CF3M ndi A182 F316L: miyezo iwiriyi ikugwirizana ndi zinthuzo ndi chitsulo chosapanga dzimbiri 316. CF3M imasonyeza kuti chopangira, chomwe chimagwiritsidwa ntchito kwambiri ngati zinthu za valve. Khodi yofananira yachitsulo ndi A182 F316L. ASTM A216 WCB ndi chopangira, ndipo zopangira zake ndi A105; zopangira za SS304 ndi A351-CF8, ndipo zopangira ndi A182-F304.