Hauv kev lag luam uas cov khoom siv hlau tiv taus kev sib txhuam, kev cuam tshuam, thiab kev puas tsuaj txhua hnub,hnav tsis kamua ib yam khoom tseem ceeb. Txawm hais tias nws yog lub zog rotating nyob rau hauv hnyav loads los yog shafts enduring rov qab motion, Cheebtsam yuav tsum tau ua los ntawm cov ntaub ntawv tawv txaus kom kav ntev. Ib qho ntawm cov kev ntseeg siab tshaj plaws hauv cov npe no yog4140 alloy hlau.
Paub txog nws zoo heev txhua yam muaj zog thiab toughness, 4140 kuj boasts impressive hnav tsis kam-thaum ua kom raug.sakysteel uatshawb nrhiav qhov nyuaj npaum li cas 4140 steel tiag tiag yog thaum nws los tiv thaiv hnav, thiab vim li cas nws yog ib qho khoom siv zoo tshaj plaws rau kev siv zog siab, hnav siab.
4140 Steel yog dab tsi?
4140a ibchromium-molybdenum low-alloy hlauuas muaj kev sib xyaw ua ke ntawm lub zog, toughness, hardness, thiab hnav tsis kam. Nws belongs rau AISI-SAE steel grading system thiab feem ntau yog siv rau hauv kev tsim khoom ntawm precision Cheebtsam, heavy-duty machinery, thiab tooling.
Hom tshuaj muaj pes tsawg leeg:
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Cov pa roj carbon: 0.38 - 0.43%
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Chromium: 0.80-1.10%
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Manganese muaj pes tsawg leeg: 0.75-1.00%
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Molybdenum: 0.15-0.25%
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Silicon: 0.15-0.35%
Cov chromium txhim kho hardness thiab hnav tsis kam, thaum molybdenum boosts toughness thiab high-temperature zog. Cov alloying ntsiab ua4140 uahaum rau qhov chaw uas yuav tsum tau tiv thaiv kev puas tsuaj ntawm lub sijhawm ntev.
Wear Resistance yog dab tsi?
Hnav tsis kamyog cov khoom muaj peev xwm tiv taus qhov poob los ntawm kev siv tshuab. Qhov kev ua no tuaj yeem suav nrog:
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Kev puas tsuaj(rubbing, scraping)
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Adhesion(kev sib txhuam ntawm cov khoom siv)
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Kev yaig(kev cuam tshuam ntawm cov khoom los yog kua)
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Kev ntxhov siab(micro-tsav nyob rau hauv load)
High hnav tsis kam txhais tau hais tias ib feem yuav siv sijhawm ntev dua hauv kev pabcuam, txo cov nqi kho thiab sijhawm poob.
4140 Steel Ua li cas hnav tsis kam?
4140 steel tsis yog cov hlau hnyav tshaj plaws ntawm kev ua lag luam, tab sis nws hnav tsis kam yogcustomizable heev. Los ntawm kev tsim nyogKev kho cua sov, cov hlau no tuaj yeem hloov pauv los ntawm cov khoom siv ua haujlwm, nruab nrab-lub zog rau hauv lub zog hnyav, hnav-tiv taus.
1. Nyob rau hauv Annealed Condition
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Mos thiab yooj yim machinable
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Tsawg hardness (~ 197 HB)
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Hnav tsis kam yog qhov tsawg
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Haum rau kev ua haujlwm ntxiv xws li machining lossis vuam
2. Tom qab quenching thiab tempering
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Kev nce siab hauv qhov tawv tawv (txog 50 HRC)
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Tensile zog tshaj 1000 MPa
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Kev hnav zoo heev rau kev siv nruab nrab mus rau hnyav-load
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Balanced toughness tiv thaiv kev tawg nyob rau hauv kev poob siab lossis kev ntxhov siab dua
At sakysteel ua, peb feem ntau muab 4140 steel nyob rau hauv lubquenched thiab tempered moblos ua kom muaj zog thiab hnav ua haujlwm siab tshaj plaws. Qhov no ua rau nws zoo tagnrho rau dynamic Cheebtsam xws li shafts, axles, thiab iav blanks.
Mechanisms Qab 4140's Wear Resistance
Ntau yam ua rau muaj kev hnav-tiv taus ntawm 4140 alloy steel:
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Chromium Cov ntsiab lus
Txhim kho hardness thiab tiv taus abrasive hnav. -
Molybdenum Ntxiv
Txhim kho lub zog thiab txo qhov kev pheej hmoo ntawm tshav kub-mos ntawm qhov kub siab. -
Fine Microstructure
Thaum tshav kub kub-kho 4140 tsim cov qauv tempered martensite uas tiv taus deformation thiab scuffing. -
Nto Hardness Control
Cov hlau tuaj yeem ua rau cov tub ntxhais los yog xaiv cov tawv tawv ntawm qhov chaw, muab kev yooj yim rau kev siv tshwj xeeb.
Sib piv 4140 Hnav Resistance rau lwm yam ntaub ntawv
4140 vs 1045 carbon hlau
4140 muaj qhov zoo dua hnav tsis kam vim siab dua hardness thiab alloy cov ntsiab lus. 1045 yog qhov haum rau cov ntawv thov kev ntxhov siab tsawg.
4140 vs Tool Steels (piv txwv li, D2, O1)
Cov cuab yeej steel zoo li D2 muab kev hnav zoo tshaj plaws hauv cov xwm txheej huab cua, tab sis yog nkig thiab nyuaj rau lub tshuab. 4140 tawm tsam qhov sib npaug zoo dua rau qhov chaw muaj zog uas xav tau ob qho tib si lub zog thiab tawv.
4140 vs Stainless hlau (xws li, 316)
Stainless hlau tiv thaiv corrosion tab sis hnav sai dua hauv kev thauj khoom. 4140 yog qhov zoo dua rau qhov chaw qhuav, txhua yam kev sib txhuam uas muaj kev sib txhuam ntau dua li kev xeb.
Daim ntawv thov tiag-lub ntiaj teb uas tso siab rau 4140's Wear Resistance
Vim nws cov hardness customizable thiab toughness, 4140 yog siv nyob rau hauv ib tug ntau yam ntawm hnav-tiv taus Cheebtsam:
Automotive Kev Lag Luam
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Transmission shafts
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Camshafts
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Steering knuckles
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Gear blanks thiab spacers
Roj & Roj Sector
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Cov cuab yeej downhole
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Rotary ncej
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Av nkos twj tso kua mis
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Couplings thiab cov cuab yeej sib txuas
Khoom siv
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Hydraulic thooj voos kheej kheej
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Bushings thiab bearings
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Nias platens
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Conveyor rollers
Tooling thiab Tuag
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Punches
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Cov cuab yeej tuav
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Tuag blocks
Cov ntawv thov no ntsib kev nyuaj siab, kev sib txhuam, thiab kev cuam tshuam - ua rau kev hnav tsis kam yog qhov tseem ceeb rau kev nyab xeeb, ua haujlwm tau zoo, thiab ua haujlwm ntev.
4140 Puas tuaj yeem Kho Nto Kho kom zoo dua hnav tsis kam?
Yog lawm. 4140 steel yog heev sib xws nrognto engineeringcov txheej txheem uas ntxiv boost hnav tsis kam:
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Nitriding
Ua ib txheej txheej tawv tawv (txog 65 HRC) yam tsis muaj qhov cuam tshuam. Zoo tagnrho rau cov cuab yeej. -
Induction Hardening
Xaiv cov tawv nqaij tawv thaum khaws cov tub ntxhais tawv - feem ntau hauv cov ncej thiab lub zog. -
Carburizing
Ntxiv cov pa roj carbon monoxide rau saum npoo kom muaj zog ntxiv. Haum rau qhov chaw raug kev sib txhuam thiab siab.
At sakysteel ua, peb muab kev txhawb nqa rau cov neeg siv khoom nrhiav nitrided lossis induction-hardened 4140 Cheebtsam.
Cov txiaj ntsig tseem ceeb ntawm 4140 rau Kev Siv Hnav
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High Surface Hardness (txog 50 HRC lossis ntau dua)
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Zoo heev Core Toughnesstiv thaiv tawg
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Ruaj nyob hauv qab cua sovthiab cyclic loading
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Nqi-zoopiv rau cov cuab yeej steel
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Yooj yim rau tshuab thiab Weldua ntej kev kho mob zaum kawg
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Txhawb Ntxiv Nto Hardening
Cov txiaj ntsig zoo no ua rau 4140 mus rau kev xaiv rau cov kws tsim qauv tsim cov khoom txav uas yuav tsum tau mus ntev.
Quality Assurance los ntawm sakysteel
Thaum hnav tsis kam tseem ceeb,kev tswj kom zoo yog txhua yam. Ntawmsakysteel ua, peb xyuas kom meej kev ua tau zoo nrog:
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Muaj ntawv pov thawjchemical thiab mechanical tsom xam
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Kev saib xyuas kev kho cua sov nruj
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Precise hardness kuaj
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EN10204 3.1 ntawv pov thawj
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Kev xaiv sab nrauv kho mob
Peb muab 4140 steel nyob rau hauv kub dov, txias drawn, forged, thiab precision-machined hom, customized rau koj daim ntawv thov hnav xav tau.
Xaus
Yog li cas tawv yog 4140 steel -tiag tiag? Cov lus teb yog qhov tseeb:tawv heev, tshwj xeeb tshaj yog thaum tshav kub kho kom raug. Nrog nws zoo heev tshuav nyiaj li cas ntawm deg hardness, core zog, thiab machinability, 4140 alloy steel muaj txhim khu kev qha hnav tsis kam nyob rau hauv txhua yam ntawm automotive axles mus rau hnyav-duty laum cov cuab yeej.
Yog tias koj daim ntawv thov muaj kev sib txhuam, cuam tshuam, lossis puas,4140 steel los ntawm sakysteelyog ib qho kev daws teeb meem uas tsim los rau lub neej ntev thiab kev ua haujlwm.
Post lub sij hawm: Lub Xya hli ntuj-29-2025