Nyob rau hauv lub ntiaj teb no ntawm precision engineering, kev xaiv ntawm cov khoom yog txhua yam. Seb nws yog rau aerospace Cheebtsam, automotive gears, los yog high-stress tooling qhov chaw, cov ntaub ntawv kev ntseeg tau txhais cov khoom ua tau zoo. Ntawm ntau yam hlau alloys,4140 uatau tshwm sim los ua ib qho ntawm cov ntaub ntawv ntseeg siab tshaj plaws rau kev siv precision. Nws tshwj xeeb ua ke ntawm lub zog, toughness, thiab machinability ua rau nws indispensable nyob rau hauv engineering thiab manufacturing.
Hauv tsab xov xwm no, sakysteel tshawb txog lub luag haujlwm tseem ceeb ntawm 4140 steel hauv cov ntawv thov raug, qhia txog nws cov khoom, cov txiaj ntsig, thiab kev siv kis thoob plaws kev lag luam.
4140 Steel yog dab tsi?
4140 steel yog atsawg alloy chromium-molybdenum steeluas muaj cov khoom siv kho tshuab zoo heev. Nws belongs rau AISI-SAE steel grading system thiab yog categorized raws li ib tug engineering alloy siv rau cov khoom raug rau siab mechanical kev nyuaj siab.
Nws cov tshuaj muaj pes tsawg leeg muaj xws li:
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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:0.75 - 1.00%
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Molybdenum:0.15-0.25%
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Silicon:0.15-0.35%
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Phosphorus & Sulfur:≤ 0.035%
Qhov kev tsim tshwj xeeb no txhim kho hardenability, hnav tsis kam, thiab lub zog tensile, ua 4140 steel ib qho zoo meej match rau precision-engineered qhov chaw.
Cov yam ntxwv tseem ceeb uas tseem ceeb hauv kev siv Precision
Precision Cheebtsam xav tau ntau dua li lub zog dav dav. Lawv xav tau cov ntaub ntawv nrog kev ua tau zoo, qhov ruaj khov, thiab kev ua haujlwm zoo heev. 4140 steel ua tiav cov kev xav tau no vim yog cov yam ntxwv hauv qab no:
1. Siab zog thiab toughness
4140 steel muab lub zog tensile siab (txog 1100 MPa) thiab yield zog (~ 850 MPa), txawm nyob rau hauv nruab nrab hla ntu. Qhov no tso cai rau cov khoom kom tiv taus cov loads siab thiab kev ntxhov siab yam tsis muaj deformation lossis tsis ua haujlwm.
2. Zoo Fatigue Resistance
Kev qaug zog ua haujlwm yog qhov tseem ceeb hauv qhov tseeb xws li shafts, spindles, thiab gears.4140 uaua tau zoo nyob rau hauv cyclic loading, pab kom ntev kev pab cuam lub neej thiab txo qhov yuav tsum tau ntawm nquag hloov.
3. Zoo heev Hardenability
Cov khoom teb zoo rau kev kho cua sov, tshwj xeeb tshaj yog quenching thiab tempering. Nws tuaj yeem ua tiav qhov nyuaj ntawm qhov siab txog li 50 HRC, ua rau nws zoo tagnrho rau cov ntawv siv hnav.
4. Dimensional Stability
Tsis zoo li lwm cov hlau, 4140 khaws nws qhov ntev txawm tias tom qab kev siv tshuab thiab kev kho cua sov. Qhov kev ruaj ntseg no yog qhov tseem ceeb rau kev ua siab ntev rau qhov chaw hauv aerospace thiab kev siv tsheb.
5. Machineability
Nyob rau hauv nws lub xeev annealed los yog normalized, 4140 yog ib qho yooj yim rau tshuab siv cov pa pa. Nws tso cai rau precision drilling, tig, thiab milling, uas yog qhov tseem ceeb hauv kev tsim khoom thiab tuag.
Common Precision Applications ntawm 4140 Steel
Ntawm sakysteel, peb tau pom qhov kev thov nce ntxiv rau 4140 steel hauv kev lag luam uas vam khom ntau ntawm qhov raug thiab qhov ua haujlwm ntev. Nov yog qee qhov kev siv tseem ceeb:
Aerospace
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Landing gear Cheebtsam
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High-lub zog fasteners
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Precision shafts thiab couplings
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Txhawb cov qauv hauv aircraft thav duab
Automotive
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Cov kis tau tus mob
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Crankshafts
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Txuas rods
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Log hubs
Tool thiab Tuag Kev Lag Luam
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Pwm thiab tuag rau kev txhaj tshuaj yas
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Cov cuab yeej tuav
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Tuag casting inserts
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Precision txiav cov cuab yeej
Roj thiab Roj
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Laum dab tshos
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Couplings thiab crossovers
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Cov khoom siv hydraulic
Txhua daim ntawv thov no qhia txog qhov zoo sib xws: qhov kev thov rau qhov loj me, tiv thaiv kev qaug zog, thiab lub neej ua haujlwm ntev.
Kev kho cua sov ua kom muaj peev xwm ua tau zoo
4140 steel tuaj yeem kho cua sov los txhim kho lub zog, hardness, thiab toughness. Cov txheej txheem kho cua sov hauv qab no feem ntau siv:
Annealing
Softens cov khoom kom zoo dua machinability thaum txo cov kev ntxhov siab sab hauv.
normalizing
Txhim kho toughness thiab ua kom zoo microstructure.
Quenching thiab Tempering
Ua kom lub ntsej muag hardness thiab lub zog tseem ceeb. Ua kom tswj tau qhov kawg ntawm cov khoom siv kho tshuab raws li cov ntawv thov yuav tsum tau ua.
At sakysteel ua, peb muab kev kho cua sov4140 uahaum rau koj xav tau hardness ntau yam. Qhov kev hloov pauv no ua kom ntseeg tau tias qhov kawg ua tau raws li koj qhov xav tau tiag tiag engineering.
4140 Hlau vs Lwm Cov Khoom Siv Precision
Piv rau Stainless Hlau (xws li, 304/316)
4140 steel muaj zog dua thiab hardness, tab sis tsis muaj corrosion kuj. Nws yog nyiam nyob rau hauv qhuav los yog lubricated ib puag ncig uas corrosion tsis yog ib qho kev txhawj xeeb tseem ceeb.
Piv rau Carbon Steel (piv txwv li, 1045)
4140 pom zoo hnav tsis kam thiab qaug zog vim nws cov ntsiab lus chromium-molybdenum alloy.
Piv rau Tool Steel (piv txwv li, D2, O1)
Thaum cov cuab yeej steels muaj qhov ua tau zoo dua, 4140 muab qhov sib npaug ntawm lub zog, tawv, thiab kev ua haujlwm, feem ntau ntawm tus nqi qis.
Qhov no ua rau 4140 steel yog qhov kev xaiv ntse rau qhov ua tau zoo uas tsis tas yuav muaj qhov tawv tawv lossis kev tiv thaiv corrosion.
Daim ntawv muaj thiab Customization ntawm sakysteel
sakysteel uamuaj 4140 steel nyob rau hauv ntau hom kom haum rau sib txawv machining thiab forging yuav tsum:
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Kub dov thiab txias kos puag ncig tuav
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Flat bars thiab square bars
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Forged blocks thiab rings
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Txiav-rau-ntev blanks
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CNC-machined Cheebtsam raws li kev thov
Tag nrho cov khoom tuaj yeem xa tuaj rau hauv annealed, normalized, lossis quenched thiab tempered tej yam kev mob, ua tiav nrogEN10204 3.1 daim ntawv pov thawjrau tag nrho traceability.
Vim li cas Precision Engineers nyiam 4140 Hlau
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Predictable ua tau zoo nyob rau hauv load-bearing ib puag ncig
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Thaum tshav kub kub kho tau rau ntau hom hardness
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Txhim khu kev ruaj ntsegthaum lub sij hawm high-speed machining
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Compatibility nrog kev kho degzoo li nitriding, uas ntxiv txhim kho hnav tsis kam
Engineers thiab procurement specialists nyob rau hauv aerospace, lub zog, thiab tiv thaiv sectors tsis tu ncua xaiv 4140 rau lawv cov feem ntau xav tau daim ntawv thov. Nws ntaus lub zoo meej tshuav ntawm lub zog, yooj, thiab nqi-zoo.
Quality Assurance nrog sakysteel
At sakysteel ua, peb nkag siab qhov tseem ceeb ntawm kev ua tau zoo thiab sib xws hauv kev siv precision. Yog vim li cas txhua batch ntawm 4140 steel peb muab yog:
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Tau los ntawm reputable mills
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Chemically thiab mechanically kuaj hauv tsev
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Thaum tshav kub kub kho nyob rau hauv nruj txheej txheem tswj
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Tshawb xyuas qhov tseeb qhov tseeb thiab qhov chaw tiav
Peb txhawb kev txiav txim siab thiab muab kev ua haujlwm sai, ntim khoom, thiab kev xaiv xa khoom raws li koj qhov project ncua sij hawm.
Xaus
4140 steel tseem sawv tawm raws li ib qho ntawm cov khoom siv ntau yam thiab txhim khu kev qha rau kev siv precision. Los ntawm high-speed gears mus rau qhov tseem ceeb ntawm lub dav hlau qhov chaw, nws muab cov zoo tagnrho ua ke ntawm toughness, lub zog, thiab seem stability.
Yog tias koj tab tom nrhiav ib qho pov thawj alloy rau koj qhov kev tivthaiv precision tom ntej,sakysteel uayog koj tus neeg muag khoom ntseeg siab rau hwm 4140 steel khoom. Peb pab neeg npaj txhij los pab koj nrog kev txhawb nqa, kev txiav txim siab, thiab kev xa khoom thoob ntiaj teb.
Post lub sij hawm: Lub Xya hli ntuj-29-2025