WCB, cov khoom siv carbon steel hlau ua raws li ASTM A216 Qib WCB, tau dhau los ua cov txheej txheem kev kho cua sov kom ua tiav cov khoom siv kho tshuab uas xav tau, qhov ruaj khov, thiab tsis kam tiv thaiv thermal. Hauv qab no yog cov lus piav qhia ntxaws txog kev kho cua sov ua haujlwm rau WCBYD7A1X-16 Npauj Npaim Valvecastings:
cov1. Preheatingcov
- covLub hom phiaj: Txhawm rau txo qis thermal gradients thiab tiv thaiv kev tawg thaum lub sij hawm tom qab kev kub ntxhov.
- covTxheej txheem: Castings yog maj mam rhuab nyob rau hauv lub cub tawg tswj mus rau qhov kub thiab txias300-400 ° C (572-752 ° F).
- covKey Parameters: Cua sov tus nqi yog tswj ntawm50-100 ° C / teev (90-180 ° F / teev)kom ntseeg tau tias qhov sib txawv ntawm qhov kub thiab txias.
cov2. Austenitizing (Normalizing)cov
- covLub hom phiaj: Txhawm rau homogenize lub microstructure, kho cov nplej loj, thiab yaj cov carbide.
- covTxheej txheem:
- Castings yog rhuab mus rau austenitizing kub890-940 ° C (1634-1724 ° F).
- Tuav ntawm qhov ntsuas kub no rau1-2 teev rau 25 hli (1 nti) ntawm ntu tuabtxhawm rau xyuas kom tiav theem kev hloov pauv.
- Cooled nyob rau hauv tseem huab cua (normalizing) rau chav tsev kub.
cov3. Temperingcov
- covLub hom phiaj: Txhawm rau txo cov kev ntxhov siab seem, txhim kho toughness, thiab ruaj khov microstructure.
- covTxheej txheem:
- Tom qab normalizing, castings yog reheated rau ib tug tempering kub ntawm590-720 ° C (1094-1328 ° F).
- Soaked ntawm no kub rau1-2 teev rau 25 hli (1 nti) ntawm thickness.
- Txias hauv huab cua lossis qhov cub-txias ntawm tus nqi tswj kom tsis txhob muaj kev ntxhov siab tshiab.
cov4. Kev tshuaj xyuas tom qab kev kho mobcov
- covLub hom phiaj: Txhawm rau txheeb xyuas kev ua raws li ASTM A216 tus qauv.
- covTxheej txheem:
- Mechanical testing (xws li, tensile zog, yield zog, hardness).
- Microstructural tsom xam kom ntseeg tau tias uniformity thiab tsis muaj qhov tsis xws luag.
- Dimensional checks kom paub meej tias stability tom qab kev kho cua sov.
covCov kauj ruam xaiv tau (Case-Specific)cov
- covKev ntxhov siab: Rau cov geometry nyuaj, lub voj voog kev ntxhov siab ntxiv tuaj yeem ua tau ntawm600-650 ° C (1112-1202 ° F)txhawm rau tshem tawm cov kev ntxhov siab uas seem ntawm kev siv tshuab lossis vuam.
- covTswj cua txias: Rau tuab-section castings, qeeb qeeb qeeb qeeb (piv txwv li, rauv cua txias) yuav raug siv thaum lub sij hawm tempering los txhim kho ductility.
covCov ntsiab lus tseem ceebcov
- covRauv Atmosphere: Nruab nrab lossis me ntsis oxidizing cua kom tiv thaiv decarburization.
- covTemperature Uniformity: ± 10 ° C kam rau ua kom ntseeg tau cov txiaj ntsig zoo ib yam.
- covCov ntaub ntawv: Tag nrho traceability ntawm kev kho cua sov tsis (lub sij hawm, kub, txias tus nqi) rau kev ruaj ntseg zoo.
Cov txheej txheem no ua kom ntseeg tauTWS concentric npauj npaim valvelub cevD341B1X-16nyob rau hauv WCB castings ua tau raws li ASTM A216 cov kev cai rau tensile lub zog (≥485 MPa), yield zog (≥250 MPa), thiab elongation (≥22%), ua rau lawv haum rau high-temperature thiab siab daim ntaub ntawv nyob rau hauv li qub, twj, thiab kav dej.
Los ntawmTWS VALVE, muaj kev paub txog kev tsim khoomroj hmab zaum concentric npauj npaim valve YD37A1X, rooj vag valve, Y-strainer manufacture.
Post lub sij hawm: Apr-02-2025
