Khoom yam ntxwv
Ua los ntawm siab -purity tooj liab (xws li tooj liab, nyiaj- tooj liab alloy), vim nws cov thermal conductivity siab thiab siab -kub tsis kam, tuaj yeem hloov cov cua sov sai sai.Cov phab ntsa sab hauv feem ntau plated nrog chrome lossis npib tsib xee-raws li alloy los txhim kho hnav tsis kam, corrosion resistance, thiab tiv thaiv kev sib cuag ncaj qha ntawm tooj liab thiab hlau.
Tus qauv tsim
Taper tsim: Lub puab lumen ntawm lub raj tooj liab feem ntau yog tsim los ua ib lub khob hliav qab los them nyiaj rau lub shrinkage ntawm lub casting billet thaum solidification, txo qhov sib txawv ntawm huab cua thiab txhim khu kev ua kom txias.
Cov dej txias txias: Cov phab ntsa sab nrauv yog nruab nrog zawv zawg los yog zawj ncaj kom tshem tawm cov cua sov los ntawm kev siab - cov dej ceev ceev thiab xyuas kom muaj cua txias.
Daim ntawv thov Scenario
Feem ntau siv nyob rau hauv billet, billet, slab thiab lwm yam nruam casting txheej txheem, uas ncaj qha cuam tshuam lub nto zoo thiab sab hauv cov qauv ntawm lub casting billet.
Tej teeb meem thiab cov teeb meem
Hnav thiab khawb: Kev sib txhuam ntawm cov pob zeb thiab cov phab ntsa sab hauv ntawm lub raj tooj liab ua rau hnav thiab tsim kua muag, thiab kev ncaj ncees ntawm cov plating yuav tsum tau kuaj xyuas tsis tu ncua.
Thermal deformation: Deformation yuav tshwm sim nyob rau hauv lub sij hawm ntev kub siab, cuam tshuam rau qhov tseeb qhov tseeb ntawm lub billet.
Plating peeling: Plating tev yuav ua rau kom corrosion thiab ua kom lub neej ntawm cov raj tooj liab.
Scale clogging: Cov dej txias impurities tso rau hauv cov neeg khiav dej num, txo qhov ua kom txias.
Khoom siv thiab plating
High-conductivity oxygen-dawb tooj liab (OFHC): purity Ntau dua lossis sib npaug li 99.95%, thermal conductivity Ntau dua lossis sib npaug rau 380 W / (m-K), tsis kam mus siab- kub softening, tab sis hnav tsis zoo.
Nyiaj- tooj liab alloy (Cu-Ag): ntxiv 0.08 ~ 0.12% nyiaj, txhim kho siab - qhov kub thiab txias (20% nce zog ntawm 300 degree), me ntsis thermal conductivity (kwv yees 350 W / (m-K)).
Chromium-zirconium tooj liab (Cu-Cr-Zr): muaj 0.5 ~ 1.2% Cr, 0.03 ~ 0.3% Zr, ob qho tib si lub zog siab (lub zog tensile Ntau dua lossis sib npaug rau 350MPa) thiab thermal conductivity (320 W/(m), nruam siab {0}K{9}.
Sab hauv phab ntsa chrome plating: thickness ntawm 0.05 ~ 0.15mm, hardness Ntau dua los yog sib npaug rau 800HV, resistant rau kub oxidation thiab steel scouring.
Sab hauv phab ntsa npib tsib xee-raws li alloy plating (xws li Ni-Co los yog Ni-Fe): thickness ntawm 0.1 ~ 0.3mm, toughness yog zoo dua li chromium plating, zoo tiv thaiv thermal qaug zog.
Sab hauv phab ntsa composite plating: chromium + npib tsib xee ob - txheej plating, coj mus rau hauv tus account hnav tsis kam thiab thermal shock resistance (siab- daim ntawv thov kawg).
Kev kho Nitriding: Txhim kho qhov tawv tawv ntawm cov raj tooj liab kom txo qis kev hnav thaum pib.
Laser cladding: kho thaj chaw ntawm qhov chaw hnav kom ntev kev pab cuam lub neej.
Siv cov Parameters
Square billet: ntau sab ntev 100 ~ 300mm, taper 0.6 ~ 1.2% / m.
Round billet: txoj kab uas hla 150 ~ 400mm, taper 0.4 ~ 0.8% / m.
Slab: thickness 150 ~ 300mm, dav 1000 ~ 2000mm, taper 0.8 ~ 1.5% / m.
Ntev: feem ntau 700 ~ 1200mm, txiav txim siab raws li kev kos duab nrawm thiab lub sijhawm khov.
Ib leeg taper: yooj yim linear taper, haum rau qis qis nrawm lossis me me billet.
Multi-taper: Segmented kuj sib txawv taper (xws li ob npaug taper, parabolic taper), yoog raws qhov nyuaj ntawm solidification shrinkage thiab txhim kho cov cua txias uniformity.
Phab ntsa thickness: 8 ~ 20mm (nyob ntawm seb qhov loj me thiab cov khoom cua sov).
Cov dej txias hauv qhov tob: 3 ~ 6 hli, qhov dav dav: 4 ~ 8 hli.
Dej ntws tus nqi: 8 ~ 15m / s, dej siab: 0.6 ~ 1.2MPa.
Steel throughput: lub neej dav ntawm 3000 ~ 10000 tons ntawm hlau (nyob ntawm qhov zoo ntawm plating thiab txheej txheem txheej txheem).
Tso cai hnav: sab hauv phab ntsa plating hnav tsawg dua lossis sib npaug li 0.1 hli yuav tsum tau kho, deformation ntau dua 0.3 hli yuav tsum tau hloov.
Peb lub tuam txhab muaj kev paub dhau los hauv kev tsim khoom thiab kev lag luam ntawm crystallizer tooj liab raj, nrog cov kws tshaj lij kev ua haujlwm, raws li tus neeg xav tau kev pab ntawm cov neeg siv khoom, ntau lawm thiab kev ua haujlwm.
