Hlau yog graded thiab faib ua plaub pawg: Cov hlau carbon, Alloy Steels, Stainless hlau Tool hlau
Hom 1-Cov Hlau Kho
Ib cag ntawm cov pa roj carbon thiab hlau, cov hlau nplaum nyias nyias muaj cov nqi ntawm lwm yam. Cov hlau cov hlau yog qhov muaj ntau tshaj ntawm plaub tus qib steel, suav rau 90% ntawm tag nrho cov hlau ntau lawm! Carbon Steel tau faib ua peb pawg neeg pawg neeg raws li cov pa roj carbon hauv cov hlau:
L Cov Hlau Roj Hlau / Cov Hlau Me (txog 0.3% Carbon)
l nruab nrab carbon steels (0.3-0.6% carbon)
l L siab carbon cov hlau (ntau tshaj 0.6% carbon)
Cov tuam txhab feem ntau tsim cov hlau no hauv ntau qhov ntau txij li thaum lawv muaj kev pheej hmoo thiab muaj zog txaus siv hauv kev tsim khoom loj.
Hom 2-Alloy Steels
Alloy hlau yog tsim los ntawm kev sib txuas hlau nrog cov khoom siv ntxiv xws li npib tsib xee, tooj liab, / lossis txhuas. Kev sib txuas cov ntsiab lus no txhim kho lub zog, ductility, corrosion tsis kam thiab machinability ntawm cov hlau.
Hom 3-Stainless hlau
Cov qib stainless hlau tau sib xyaw nrog 10-20% chromium chromium ntxiv rau npib tsib xee, silicon, thiab carbon. Vim tias lawv muaj peev xwm nce ntxiv kom muaj sia nyob tsis zoo cov huab cua muaj qhov tshwm sim zoo siab thiab muaj kev nyab xeeb siv rau hauv kev tsim kho sab nraum zoov. Cov qib stainless hlau kuj muaj feem siv hauv cov khoom siv hluav taws xob.
Piv txwv li, 304 stainless hlau tau dav nrhiav tom qab rau nws lub peev xwm los tiv thaiv ib puag ncig thaum ua kom cov khoom siv hluav taws xob muaj kev nyab xeeb.
Thaum sib txawv ntawm cov hom qauv hlau, suav nrog 304 stainless hlau, muaj ib qho chaw hauv cov tuam tsev, stainless hlau yog ntau tshaj nrhiav tom qab rau nws cov khoom huv. Cov hlau no tau dav pom nyob rau hauv cov khoom siv kho mob, kav dej, cov hlab ntsha siab, tej cov cuab yeej ua khoom siv thiab ua khoom noj khoom haus thiab ua khoom siv tshuab.
Hom 4-Cuab Yeej Cuab Yeej Cuab Yeej
Cuab Yeej Cuab Yeej Siv, raws li lub npe qhia, Excel hauv kev txiav thiab drilling cov khoom siv. Lub xub ntiag ntawm tungsten, molybdenum, cobalt thiab vanadium pab txhim kho lub tshuab hluav taws kub thiab dav dav. Thiab vim tias lawv tuav lawv cov duab txawm nyob hauv kev siv hnyav, lawv yog cov khoom siv uas xav tau rau feem ntau cov cuab yeej siv tes.
Kev Kawm Hlau Hlau
Tshaj plaub pab pawg, cov hlau kuj tuaj yeem raug faib raws li cov hloov pauv sib txawv nrog rau:
Xws li: carbon ntau, alloy, stainless, thiab lwm yam.
Txoj Kev Ncaj Ncees: Kub Rolled, Txias Rolled, txias tiav, thiab lwm yam.
Txheej txheem ntau lawm: Fais Rauv, Nrab Nruag Nrum, thiab lwm yam.
Microstructure: Ferritic, pearlitic, martensitic, thiab lwm yam.
Lub zog ntawm lub cev: ib astm qauv
Cov txheej txheem oxidation: raug tua lossis ib nrab raug tua
Kev kho cua sov: annealed, tempered, thiab lwm yam.
Kev siv zog: Kev lag luam zoo, lub nkoj siab zoo, kos duab kom zoo, thiab lwm yam.
Dab tsi yog qhov zoo tshaj plaws qib ntawm cov hlau?
Nws tsis muaj cov qib "zoo tshaj plaws" ntawm cov hlau, raws li cov qauv siv hlau zoo nkauj nyob ntawm ntau yam kev siv, xws li kev siv lub cev, thiab kev txwv nyiaj txiag, thiab nyiaj txiag.
Cov qib steel uas niaj zaus siv thiab pom tau cov koob sab saum toj los ntawm txhua hom muaj:
Cov Hlau Hlau: A36, A529, A572, 1020, 1045, thiab 4130
Alloy Hlau: 4140, 4150, 4340, 9310, thiab 52100
Stainless hlau: 304, 316, 410, thiab 420
Cuab Yeej Steels: D2, H13, thiab M2
Jindalai yog pawg Steel
Lub sij hawm Post: Lub Yim Hli 08-2023