1. Qhov sib txawv hauv cov ntaub ntawv thiab cov txheej txheem
Khoom muaj pes tsawg leeg:
Cov khoom siv cov hlau vov yog ua los ntawm alloy steel (xws li WCB, 3 {} {}}}. 6%, thiab muaj zog thiab muaj zog;
Zas cov hlau li qub yog nyob ntawm cov hlau ductab (QT450), nrog cov ntsiab lus carbon ntau dua lossis sib npaug rau 3%. Graphite tau faib nyob rau hauv ib tug kheej kheej puab los ntawm spheroidization kev kho mob txhawm rau txhim kho kev kho kom huv thiab cuam tshuam.
Siv Tshuab:
Cov khoom siv hlau vov tsev yuav tsum muaj ntau cov cua kub, forging thiab precision ua, uas yog kim heev;
Zas cov hlau li qub yog tsuas yog xuab zeb-cam khwb cia, nrog cov txheej txheem yooj yim thiab tus nqi qis.
2. Kev Ua Haujlwm Sib Piv
Cov Khoom Siv Neeg Kho Tshuab:
Cov khoom siv cov hlau muaj lub zog tensile ntawm ntau dua lossis sib npaug ntawm cov tub ntxhais kawm chav kawm (HB})
Lub zog tensile ntawm condile hlau li qub dua los yog sib npaug ntawm lub siab ua haujlwm yog cov chew hlau (40k vs
Corrosion Kuj:
Cov khoom siv hlau vov (tshwj xeeb yog 316L cov khoom lag luam tsis kam rau hauv cov muaj zog, pH 0.}}}}}.}}}}}}}}.}}}}
Zas cov hlau li qub ua cov dej num hauv nruab nrab xws li cov dej ua kom xeb thiab cov pa dej ib puag ncig (xws li galvanizing) los txhim kho kev tiv thaiv.
Cuam tshuam kev tsis kam thiab poob siab nqus:
Tus kheej kab kos duab ntawm cov hlau khi rau nws lub peev xwm zoo dua, uas tuaj yeem tsim kev kub taub hau kev siv hluav taws xob;
Cov liquo cam khwb cia cov liques muaj ntau dua ntais thiab ruaj khov nyob rau hauv siab hloov pauv, tab sis kev pheej hmoo ntawm brittleness yog siab dua.
3. Daim Ntawv Thov Kev Sau Npe
Nrum Steel Li Qub:
Petrochemical Kev Lag Luam: Sulphur-muaj cov roj roj crude, cov chav dej kub (xws li chav kawm 600 siab li siab li qub);
Lub Zog Ua Haujlwm: LNG Cryogenic Kev Kho ({{}}} degree), nuclear zog siab-siab txias dej system;
Cov xov xwm tshwj xeeb: Cov kua qaub muaj zog acid (hydrochloric acid, sulfuric acid), muaj zog alkali lossis cov kua tsheb muaj zog heev.
Zas Hlau Li Qub:
Lub nroog Engineering: Cov dej hauv nroog, ua kom dej ntws tawm thiab tua hluav taws thiab hluav taws kub tiv thaiv (DN {} dn1200 nruab nrab thiab qis siab siab pipelines);
Lub tsev kho mob: cua txias dej ncig, kev ua liaj ua teb itrigation thiab lwm yam kub thiab lwm yam (tsawg dua lossis sib npaug zos rau;
Dej phwj: Kev tswj txoj kev tswj hwm ntawm cov neeg hauv qab thiab cov xov xwm fiber ntau, cia siab rau tus nqi qis thiab yooj yim.
IV. Kev khwv nyiaj txiag thiab txij nkawm
Tus nqi ntawm zas hlau hlau li qub yog li 30% {% qis dua li cov phiaj xwm cam khwb cia, haum rau cov nyiaj nruab nrab thiab qis qis;
Cov roj hlau cov khoom siv yuav tsum tu ncua lubrication (xws li EP2 roj) thiab kev soj ntsuam deg, thiab tus txij nkawm yog tus nqi qis;
Qhov kev pabcuam lub neej ntawm cov hlau hluav taws xob ua kom ncav cuag 20 xyoo nyob rau hauv cov chaw ua haujlwm tsis huv yuav txuas ntxiv los ntawm ntau tshaj 50% raws li kev ua haujlwm hnyav.
V. Xaiv cov lus pom zoo
Cam khwb cia hlau yog qhov zoo tshaj plaws: rau cov kub siab (> 200 degree), xws li cov tshuaj lom (xws li cov tshuaj lom neeg acid thiab alkali). Zas hlau yog nyiam: rau cov dej kub ib txwm muaj thiab cov dej num siab, cov vaj tse hauv nroog, thiab tus nqi-cov phiaj xwm kev tiv thaiv.