Cov khoom
Cov kav dej kub kub (A333 A334 Gr.6 Gr.3)
QHOV TSEEM CEEB
Pipe Loj - 1/4 "Nominal rau 42" OD
Phab ntsa Thickness - Teem caij 10 txog XXH
Tsawg-kub carbon steels tau tsim tshwj xeeb rau kev siv hauv cov khoom siv kub qis thiab tshwj xeeb tshaj yog rau cov hlab ntsha siab.
Lawv yog cov tsawg-rau nruab nrab-carbon (0.20 mus rau 0.30%), high-manganese (0.70 mus rau 1.60%), silicon (0.15 mus rau 0.60%) steels, uas muaj ib tug nplua-grain qauv nrog uniform carbide dispersion.Lawv muaj lub zog nruab nrab nrog rau qhov hnyav mus txog - 50 ° F (-46 ° C).
Rau cov nplej refinement thiab txhim kho formability thiab weldability, carbon steels yuav muaj 0.01 txog 0.04% columbium.Hu ua columbium steels, lawv yog siv rau shafts, forgings, zog, tshuab qhov chaw, thiab tuag thiab gages.Txog li 0.15% sulfur, lossis 0.045 phosphorus, ua rau lawv tsis muaj kev siv tshuab, tab sis txo lub zog.
LTCS yog Nickel-based alloy steel daim hlau tshwj xeeb tshaj yog siv rau cov ntawv thov kub qis hauv qab no - 150 deg F. Feem ntau yog siv rau hauv kev tsim cov khoom siv cryogenic ntawm qhov chaw nkoj, cov ntawv thov kub tsis tshua muaj nyob hauv cov nroj tsuag tshuaj hauv qab -55 deg C.
SA-203 Steel Phaj Qib A, B, D, E thiab F Nickle Alloy Steel Phaj.Rau qhov kub thiab txias (-150 deg F)
Tsawg Kub Carbon Steel Tubes ASTM A334 Gr.1
ASTM A333 - Seamless thiab Welded Hlau Yeeb Nkab rau Kev Pabcuam Kub Kub:
Mas Qib
Qib 1, Qib 3, Qib 4, Qib 6, Qib 7, Qib 8, Qib 9, Qib 10, Qib 11;
Tsawg kub carbon steel yeeb nkab quenching kub hauv A3 + (30 ~ 50) ℃, nyob rau hauv kev xyaum, feem ntau yog teem rau sab sauv txwv.High quenching kub kub yeeb nkab tuaj yeem ua rau qis qis, txo qis oxidation, thiab tuaj yeem txhim kho kev ua haujlwm.Lub workpiece yog uniform austenite, yuav xav tau lub sijhawm tuav txaus.Yog tias qhov tseeb qhov cub hluav taws xob muaj peev xwm, yuav tsum tsim nyog kom ncua sij hawm tuav.Txwv tsis pub, tej zaum yuav tsis txaus hardness vim cua sov tsis sib xws los ntawm qhov tshwm sim.Txawm li cas los xij, lub sijhawm tuav yog ntev dhau lawm, tseem yuav tshwm sim coarse nplej, oxidation thiab decarbonization mob hnyav cuam tshuam rau quenching zoo.Peb ntseeg hais tias yog tias lub tshuab hluav taws xob tau teeb tsa ntau dua li cov txheej txheem cov ntaub ntawv, cov cua sov tuav lub sij hawm txuas ntxiv 1/5.
Tsawg kub carbon steel yeeb nkab vim tsis tshua muaj hardenability, nws yuav tsum tau txais ib tug loj txias tus nqi ntawm 10% ntsev tov.Lub workpiece rau hauv dej, yuav tsum hardenability, tab sis tsis chilled, yog hais tias 45 # precision steel chilled nyob rau hauv brine, nws yog ua tau tawg ntawm lub workpiece, qhov no yog vim hais tias thaum lub workpiece txias mus txog 180 ℃, austenite sai hloov mus rau nees lub cev. cov ntaub so ntswg tshwm sim los ntawm kev ntxhov siab ntau dhau vim.Yog li ntawd, thaum lub quenching thiab tempering hlau sai sai txias rau qhov kub thiab txias, txoj hauv kev yuav tsum tau ua kom txias txias.
Raws li cov dej kub tsis yooj yim rau kev tuav, kev lav phib xaub hauv kev ua haujlwm, thaum cov dej tso tseg cov khoom cuav, koj tuaj yeem ua dej txias (xws li roj txias tuaj yeem ua tau zoo dua).Tsis tas li ntawd, lub workpiece mus rau hauv dej, qhov tsim nyog kev txiav txim yuav tsum tseem nyob rau hauv raws li lub geometry ntawm lub workpiece, raws li niaj zaus ce.Qhov nruab nrab cua txias nruab nrab ntxiv rau qhov chaw ua haujlwm ruaj khov, ua rau qhov tsis sib xws, kev ntxhov siab tsis sib xws, tawm hauv qhov loj deformation ntawm workpiece, thiab txawm tawg.
