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2024 aluminium bar

2024 Txhuas Square pas nrig feem ntau siv los ua cov khoom elastic rau cov khoom siv tsis zoo rau cov khoom siv los ua kom muaj zog ntxiv thiab cov cim kev sib txuas lossis cov paib ntsuas hluav taws xob.

Xa kev nug

1.}} cov khoom siv & cov txheej txheem tsim khoom

2024 Alloy Alloy (ONTM B2120, ASTM B211) yog lub zog loj-ua kom muaj zog-ua kom muaj zog ntawm cov khoom lag luam rau cov qauv tseem ceeb:

Tseem Ceeb Alloying Ntsiab:

Tooj Liab (Cu): 3.8-4.9% (thawj ntxiv dag zog ntxiv)

Magnesium (MG): {1.2-1.8% (nag lossis daus ua kom tawv)

Manganese (MN): 0.3-0.9% (qauv graget tswj)

Silicon (si): tsawg dua los yog sib luag rau 0.5% (txhim kho Castability)

Cov khoom siv hauv paus:

Aluminium (Al): Ntau dua lossis sib npaug rau 90.7% (tshuav nyiaj)

Kev tswj kev impurities:

Hlau (FE): tsawg dua lossis sib npaug rau 0.5% Max

Zinc (Zn): Tsawg dua lossis sib npaug rau 0.25% Max

Titanium (ti): tsawg dua lossis sib npaug nrog 0.15% Max

Chromium (CR): Tsawg dua lossis sib npaug rau 0.10% Max

Lwm cov ntsiab lus: Tsawg dua lossis sib npaug rau 0.05% txhua, tsawg dua lossis sib npaug ntawm 0.15% tag nrho

Cov Txheej Txheem Tsim Tau:

Npaj nyiaj Billet:

Thawj qib-dawb huv txhuas (99.7% yam tsawg kawg nkaus)

Ua kom meej alloying ntxiv rau

Pom kev los ntawm cov ntxaij lim dej ceramic

Degassing kev kho (hydrogen <0.15 ml / 100g)

Direct-Chill Semi-Nruam casting

Homogenization:

{{0 {}}℃rau 12-24 teev

Uniform kub tswj: ± 5 degree

Kev tsim tawm tswv yim Micrilibrational

Cu-nplua nuj theem sib cais

Extrusion:

Preheating rau 370-400 degree

Lubrication ua kom zoo

Khoos Phibhais Tawm Khoom Siv Hluav Taws Xob

Tawm qhov kub tswj: 450-480 degree

Cov nqi kom ua tau zoo rau cov khoom ntiag tug

Ncaj taub hau nyob rau hauv 4mm / m

Tshuab Kev Kho Mob Kub:

{{0 {}}℃rau 1 teev (taub-nyob)

Cov ris tsho kub: ± 3 degree

Hloov nrawm nrawm mus rau quenching nruab nrab

Quenching:

Dej Txias (5-30 degree)

Agitation rau Uniform Txias

Lub sijhawm hloov siab tshaj plaws: 15 vib nas this

Yam tsawg kawg nkaus txias tus nqi: 100 Qib / Sec ntawm saum npoo

Daig txias:

HYDRAULIC XOVXWM WISFENDING

Siab tshaj 1-2% txias ua haujlwm

Kev tshaj tawm kev ntxhov siab tsawg kawg

Kev laus cuav:

T3: Ntuj Laus ntawm Chav Tsev Kub

T351: Kev nyuaj siab nyem + kev laus laus

T4: Kev daws teeb meem kub kho kho + ntuj laus

T6: Kev laus cuav ntawm 190℃rau 12 teev

Tag nrho cov txheej txheem traceeability nrog cov ntaub ntawv zoo tshwj xeeb .

{{02. cov khoom siv neeg kho tshuab ntawm 2024 aluminium bar

Ntiag tug	T351 (min)	T351 (Raug)	T6 (min)	T6 (Raug)	Txoj kev xeem
Qhov kawg tensile lub zog	425 MPa	440-470 mpa	440 MPA	460-490 mpa	ASTM E8
Tos lub zog (0.2%)	290 MPa	310-345 mpa	345 MPa	360-400 mpa	ASTM E8
Elongation (2 nti)	10%	12-17%	5%	6-10%	ASTM E8
Hardness (Brinell)	110 HB	115-125 hb	120 HB	125-135 hb	Astm E10
Quab Qeeb dag zog (5 × 10⁸)	130 MPa	140-150 mpa	120 MPA	125-140 mpa	ASTM E466
Tawv muaj zog	270 mpa	285-300 mpa	280 MPa	290-310 mpa	ASTM B769
Txhab Fracture (K₁C)	26 Mpa√m	28-32 mpa√m	20 mpa√m	22-25 mpa√m	ASTM E399
Modulus ntawm elasticity	73.1 GPA	73.1 GPA	73.1 GPA	73.1 GPA	Astm E111

Vajtsoob:

Longitudinal rau kev sib tshuam cov khoom ntiag tug: 1.00: 0.85-0.90

Tej txawv txawv hla lub taub:<5% for bars up to 100mm

Cov tub ntxhais mus rau saum npoo hardness variation:<8 HB

Cov khoom ntiag tug tom qab raug hluav taws xob: qhov zoo tshaj 100 degree

3.} microstructural yam ntxwv

Qhov Tseem Ceeb Microstructural nta:

Grain qauv:

Elongated nplej nyob rau hauv extrusion kev taw qhia

ASTM grain loj 5-7 (50-70 μm)

Nam natio: 2: 1 txog 5: 1

Subgraine loj hlob hauv T351 Tem

Precipition faib:

Al₂cu (θ / θ ') ntxiv dag zog siv tam sim no: {5-50 nm

Al₂cumg (S-Theem) precipitates

Al₁₂mn₃si Dispersoids: 50-200 nm

Al₇cu₂fe Intermpetallics: tswj qhov loj me thiab faib

Kev Kawm Ntawv:

Muaj zog<111>thiab<100>Fiber Textures

Deformation Tipure khaws cia tom qab kev kho cua sov

Kev siv kev ntxhib los mos: {3-8 × × randand

Cov Nta Tshwj Xeeb:

Recrystallization tswj tau los ntawm MN dispenerids

Ntuj Laus yuav muaj teeb meem GP Cheeb Tsam

T6 Temper: θ '(al₂cu) prepipitate dominance

Cov daus-aav-dawb zones ze ze cov ciaj ciam:<50nm

4.} Qhov ntev tshaj tawm & kev thev taus

Chaw ua uas tsis tau haus	Cov Qauv Qeb	Precision Kev Zam	Kev Lag Luam Ua Lag Luam	Txoj kev xeem
Lub cheeb (puag ncig)	10-300 hli	± 0.15mm txog 30 hli	± 0.25mm txog 30 hli	Micrometer
		± 0.5% saum toj 30 hli	± 1.0% tshaj 30 hli
Dav (duab plaub)	10-250 hli	± 0.20 hli txog 50 hli	± 0.30 hli txog 50 hli	Tus caliper
		± 0.4% tshaj 50 hli	± 0.8% tshaj 50 hli
Qho ntev	2000-6000 hli	± 3mm	± 6 hli	Daim kab xev ntsuas
Ncaj	N/A	0.5mm / m	1.0 hli / m	Ncaj
Ntswj (duab plaub)	N/A	2 Qib Max rau ib Meter	4 Degree Max ib Meter	Tus muaj zog
Nto roughness	N/A	3.2 μm RA Max	6.3 μm RA Max	Profat

Qauv muaj cov qauv:

Round Bar: Diameters 10-300 hli

Hexagonal bar: hla flats 10-100 hli

Square bar: sab qhov ntev 10-150 hli

Rectangular Bar: Dav mus txog 250 hli, Thickness ntawm 10 hli

Txiav-rau-ntev kev pabcuam muaj

5.}}}}} Kev Kho Mob Cua Sov

Tauj Ntshav	Kev piav qhia cov txheej txheem	Qhov Zoo Tshaj Ntawv	Cov yam ntxwv tseem ceeb
T351	Daws cov tshuaj kub kho, kev ntxhov siab kom ncab (1-3%), ib txwm muaj hnub nyoog	Aerospace Cov Txheej Txheem, Tshuab Txuas	Zoo heev tevasab, muaj lub zog zoo-kev sib npaug
T4/T451	Kev daws teeb meem kub kho, ib txwm muaj hnub nyoog	Qhov uas yuav tsum tau ua kom muaj peev xwm siab	Qhov zoo tshaj plaws formatiscity, muaj zog nruab nrab
T6/T651	Kev daws teeb meem kub kho, artificially muaj hnub nyoog	Qhov Kev Siv Lub Zog Ntau Tshaj	Lub zog siab tshaj plaws, txo qis ductility
T861	Kev daws teeb meem kub kho, txias ua haujlwm, artificially muaj hnub nyoog	Heev kev sib cav sib ceg	Siab zog nrog zoo SCC Kuj
T3	Daws cov cua sov kho, ua haujlwm txias, ib txwm muaj hnub nyoog	Lub Hom Phiaj Dav Hlau	Kev tshuav nyiaj zoo ntawm cov khoom

Cov Lus Taw Qhia Txog Kev Xaiv Tsa:

T351: Zoo rau qhov chaw tau los ntawm Bar Tshuag

T6: Thaum xav tau lub zog siab tshaj plaws

T4: Thaum cov haujlwm tom qab tsim nyog xav tau

T 861: Rau cov cheebtsam nthuav dav rau kev ntxhov siab ntau hauv cov chaw nruab nrab

6. tshuab machining & Fabrication tej yam

Kev phais	Lub cuab yeej	Pom zoo tsis	Lus
Txoj siav	Carbide, pcd	VC =300-600 m / min, f =0.1-0.3 hli / rev	Cov Nthij Zoo Tshaj
Kev drilling	Hss-co, carbide	VC =70-120 m / min, f =0.2-0.4 hli / rev	Qhov zoo qhov zoo
Milling	Carbide, pcd	VC {=300-700 m / min, fz =0.1-0.3 hli	Nce milling nyiam
Tab tom	Hss-e, Tin coated	Vc =15-25 m / min	Cov xov zoo heev Xov Zoo
Tus rov ua dua	Carbide, pcd	VC =40-80 m / min, f =0.2-0.5 hli / rev	H7 zam kev ua tiav
Sib nqus drilling	Carbide, HSS-CO	Vc =60-90 m / min, pecking voj voog	Cov Nti Zoo Tshaj

Kev Taw Qhia Fabricance:

Luam Ntawv Ntsuas: 70% (1100 Aluminium=100%)

Deg tas: Zoo heev (ra 0.8-3.2 μm tiav)

Nti Tsim: luv luv rau nruab nrab chips

Coolant: Dej-Soluble Emulsion nyiam (8-10}% concentration)

Tuam hnav: muaj pes tsawg nrog cov tsis tsim nyog

Burr Tsim: tsawg kawg nrog cov cuab yeej ntse

Txias ua haujlwm: Cov qauv zoo hauv T4 mob

Kub ua hauj lwm: {350-450℃pom zoo qhov ntsuas kub

Weldability: Tsawg (Ua Ntej Vuam Tu Qhov Tseem Ceeb)

{{07. corrosion Kuj & Kev Tiv Thaiv Cov Tshuab

Ib puag ncig hom	Kev Ntsuas	Kev Tiv Thaiv Txoj Kev	Kev cia siab
Muaj cua	Tswj kav	Anodizing + Xim	5-10} xyoo nrog kev saib xyuas
Tubrog nkoj marine	Pluag	Anodizing + Domate + Xim	3-5} xyoo nrog kev saib xyuas
Siab vaum	Ncaj	Anodizing Hom II	{{02-3 xyoo tsis muaj kev tiv thaiv ntxiv
Kev ntxhov siab corrosion	Pluag hauv T351, zoo dua hauv t861	Tua cov peenion + kev tiv thaiv	Daim ntawv thov tshwj xeeb
Kho	Ncaj ncees rau qhov zoo	Kev Kho Mob Kub Kub	T7X Tempers nyiam rau cov apps tseem ceeb

Kev Xaiv deg Nto:

Anodizing:

Hom II (Sulfuric): 10-25 μm tuab

Hom III (nyuaj): 25-75 μm tuab

Chromic: {2-7 μm (AERPACACE cov ntawv thov)

Kev hloov dua tshiab txheej:

Chromate ib mais-dtl -5541 chav kawm 1a

Cov kev xaiv tsis yog-chromium

Lub tshuab tha xim:

Epoxy Primer + Polyurethane Topcoat

Aerospace-tsim nyog muaj cov tshuab muaj

Cov kev tiv thaiv txhua yam:

Tua cov noog kom tau ua kom qaug zog ua kom zoo thiab scc tsis kam

Hlawv rau kev txhim kho nto tiav

{{08. Cov Khoom Siv Rau Lub Cev Rau Cov Kws Tsim Khoom Lag Luam

Ntiag tug	Tus nqi	Tsim Kev Txiav Txim Siab
Ceev	2.78 g /m³	Qhov hnyav xam rau cov khoom siv
Melting ntau	502-638 degree	Kev kho cua sov
Thermal conductivity	120-150 W/m·K	Thermal Tswj Tsim
Hluav Taws Xob Kev Tshaj Tawm	30-40% IACs	Daim Ntawv Thov Hluav Taws Xob Tsim
Cov cua sov tshwj xeeb	875 J / Kerg · K	Kev muab cov calval
Thermal Expansion (CTE)	23.2 ×10⁻⁶/K	Kev ntsuas kev ntxhov siab thermal
Cov tub ntxhais hluas lub modulus	73.1 GPA	Deflection thiab stiffness suav
Poisson tus piv	0.33	Cov Txheej Txheem Ntsuam Xyuas Parameter
Luam Machinyar	70% (1100=100%)	Npaj Vaj Tse

Kev txiav txim siab tsim:

Kev Ua Haujlwm Kub Ntau Yam: {-80℃rau +120 degree

Cov khoom ntiag tug khaws cia: Hauv qab zoo dua 100 degree

Hluav Taws Xob Cov Hluav Taws Xob: 30% IARS (T3), 40% IACS (T6)

Kev ntxhov siab so: Tsawg tsawg dua 100 degree

Cov khoom sib nqus: tsis sib nqus

Damping muaj peev xwm: tsawg (feem ntau ntawm aluminium alloys)

9. Kev paub tseeb & kev xeem

Cov Qauv Kuaj Cov Txheej Txheem:

Tshuaj lom neeg cov tshuaj:

Optical Opission Spectroscopy

Cov ntaub ntawv pov thawj ntawm txhua qhov tseem ceeb thiab kev tsis txaus siab

Kev Kuaj Neeg Kho:

Tensile kuaj (ntev thiab transverse)

Hardness Ntsuas (Brinell lossis Rockwell)

Hluav taws xob conductivity rau kev ua haujlwm hnyav

Tshuaj Ntsuam Xyuas Sab Nrau:

Txoj kab uas hla / qhov loj me ntawm ntau qhov chaw

Kev qhia ncaj ncees

Nto ua tiav kev ntsuas

Kev Ntsuam Xyuas Pom:

Kev Ntsuas Xyuas saum npoo

Ua tiav cov ntawv pov thawj zoo

Kev xeem tshwj xeeb (thaum xav tau):

Ultrasonic kev kuaj xyuas ib AMs-std -2154

Kev Tshuaj Xyuas Kev Soj Ntsuam

Grain Zauv tshuaj soj ntsuam

Kev Ntsuas Microstration

Qauv ntawv pov thawj:

Mill Xeem Ntawv Tshaj Qhia (en 10204 3.1)

Tshuaj Ntsuam Xyuas Tshuaj Txheeb Xyuas

Cov Khoom Siv Neeg Kho Tshuab Cov Khoom Siv

Kev Kho Cua Sov

Daim Ntawv Tshaj Qhia Sab Nrig

10. Daim ntawv thov & Tsim Kev Txiav Txim

Thawj cov ntawv thov:

Cov dav hlau tsaws iav Cheebtsam

Aerospace fittings thiab cov txuas

High-zog Txheej Txheem Txheej Txheem

Kuj tseem ceeb siv hluav taws xob Cheebtsam

Kev Defense Kev Lag Luam Kev Lag Luam

Precision Tshuab Xeem

Pwm Cuab Yeej Siv Cheebtsam

Kev ua haujlwm siab bolts thiab fasteners

Cheebtsam hydraulic

Txuas cov pas nrig thiab tsav tsheb

Tsim Zoo:

Zoo heev lub zog-rau-qhov hnyav piv

Superior machinity rau cov ntu nyuaj

Zoo qaug zog ua tau zoo

High Blotness Troattness hauv T351 Mob

Qhov seem tsis ruaj khov tom qab machining

Tsim nyog rau qhov tseem ceeb ntawm cov khoom siv

Cov khoom hnav zoo nrog cov kev kho kom haum

Pov thawj keeb kwm nyob rau hauv ib daim ntawv thov aerospace

Paub tseeb thiab muaj cov khoom ntiag tug

Dav muaj nyob rau ntau qhov ntau thiab tsawg thiab cov ntaub ntawv

Cim npe nrov: 2024 Aluminium txhuas bar, Tuam Tshoj 2024 aluminium bar manufacturers, lwm tus neeg, Hoobkas