Dab tsi yog Precision Temperature -Control Txheej Txheem Rau Titanium Alloy Forging?

Titanium alloy forging yog kub-rhiab heev; Qhov kub sib txawv ntawm tsuas yog ± 10℃tuaj yeem ua rau muaj kev cuam tshuam ntawm cov qauv, kev hloov pauv ntawm cov khoom lossis txawm tias tawg. Yog li ntawd, kev tswj qhov kub thiab txias yog qhov tseem ceeb ntawm cov txheej txheem.

 

 

1. Beta-transus kub ntawm titanium alloys

Qhov kub ntawm beta-transus yog qhov tseem ceeb ntawm ciam teb rau titanium alloy forging. Nyob rau hauv chav tsev kub, lub alloy yog dominated los ntawm -theem; Thaum cua sov mus rau qhov kub thiab txias, nws hloov mus rau theem.

• Qib 5Kub: 995-1010 degree
• Kev lag luam ntshiab titanium: 880-900 degree
• Nyob ze-titanium alloys: 1050-1100 degree

 

Cov theem ua pov thawj tsis zoo ductility, yog li qhov kub thiab txias forging nyiam ua rau tawg. Cov-theem nta zoo plasticity, tsis tau kub dhau ua rau cov nplej coarsening thiab degrades toughness thiab qaug zog kev ua tau zoo. Qhov tseem ceeb, forging kub tswj tswj qhov / theem feem kom sib npaug ntawm formability thiab mechanical kev ua tau zoo.

 

2. Tus nqi ntawm kev tswj qhov kub thiab txias

Kub kub → grain coarsening thiab oxidation hnyav heev

Tsis tshua muaj kub → siab deformation kuj, tawg thiab laminar defects

Loj kub hloov pauv → heterogeneous microstructure thiab concentrated residual kev nyuaj siab, uas yuav ua rau ntxov ntxov tivthaiv tsis ua hauj lwm

Rau high-end aerospace titanium forgings, kev tswj qhov kub thiab txias yuav tsum tsawg dua lossis sib npaug li ± 5℃kom lav qhov ua tau zoo ib yam.

 

 

1. + ob-theem cheeb tsam forging

Ua 30-80℃hauv qab ntawm beta-transus kub, qhov no yog cov txheej txheem tseem ceeb. Coexistence ntawm thiab theem ua rau cov nplej refinement los ntawm deformation thiab xa cov khoom zoo txhua yam, haum rau cov khoom siv dav dav. Ob qho tib si thawj zaug thiab zaum kawg forging kub yuav tsum tau tswj kom tsis txhob muaj cov nplej coarsening thiab qis kub tsis xws luag thiab ua tiav cov nplej zoo.

 

2. Nyob ze-forging

Ua 10-30℃hauv qab qhov kub ntawm beta-transus nyob rau hauv ob theem tseem ceeb cheeb tsam. Ib feem ntawm theem siab txo qis deformation kuj thiab txhim kho cov khoom ntws. Nws yog siv rau hnyav-deformation, loj-scale complex forgings, txo forging heats thiab boosts efficiency.

 

3. Sub-quasi-beta forging

Ua 0-10℃hauv qab ntawm beta-transus kub. Nws ua ke loj deformation muaj peev xwm nrog controllable microstructure. Ib zaug dhau hnyav deformation tuaj yeem tshem tawm cov porosity thiab kab noj hniav thiab ua kom cov tub ntxhais microstructures zoo dua, thiab tau txais kev pom zoo rau high-density, high-reliability premium titanium forgings.

 

4. ib-theem cheeb tsam forging

Ua 10-50℃saum toj no beta-transus kub. Nws muaj qhov zoo tshaj plaws plasticity thiab qhov tsawg kawg nkaus kev ntxhov siab, thiab feem ntau yog siv rau ingot cogging thiab pre-forming ntawm loj-cross-section billets kom tawg coarse li-cast nplej. Txawm li cas los xij, kev tswj qhov kub thiab txias yog qhov nyuaj; nplej zoo li loj hlob thiab toughness poob.

 

 

1. Qib 5 / TC4

• Beta-transus kub: 995-1010 degree
• + ob-theem forging: pib forging 930-955 degree; finish-forging kub siab tshaj los yog sib npaug rau 800℃los tiv thaiv txias cracking
• Nyob ze forging: pib forging 970-990 degree; tag-forging 820-850 degree
• Beta-region cogging: pib forging 1020-1050 degree; tag-forging 850-880 degree
• Soaking: 0.8-1.5 min ib millimeter ntawm billet thickness; ncua sij hawm soaking rau loj-cross-section billets kom ua tau raws li qhov kub thiab txias
• Tuag ua ntej cua sov: 250-300℃kom qeeb billet kub poob thiab zam kev sib cuag-dog tawg; Lub sij hawm hloov pauv lub sij hawm tsawg dua los yog sib npaug li 20 s kom txo tau cov cua txias

 

2. Qib 2 ua lag luam ntshiab titanium

• Beta-transus kub: 880-900 degree
• Pa forging: 850-900 degree; tag-forging kub siab dua los yog sib npaug rau 750℃kom ruaj ntseg microstructure thiab nto zoo

 

3. Ti‑5Al-2.5Sn

Forging kub qhov rais: 900-950 degree. Nws cov txheej txheem qhov rais yog nqaim, yuav tsum tau kub-tswj qhov tseeb ntawm ± 5℃rau ruaj khov microstructure thiab txhua yam khoom.

 

4. High-lub zog ze-titanium alloys

• Beta-transus kub: 1050-1100 degree
• Precision tuag forging: 950-1020 degree, kub kam rau ua ± 10 degree
• Multi-heat re-heating thiab soaking: 60-90 min ntawm 30-50℃hauv qab beta-transus kub
• Finish-forging: 10-30℃hauv qab beta-transus kub kom sib npaug zog thiab toughness

 

 

1. Step-wise precise cua sov

Gradient step-wise cua sov hloov isothermal cua sov los daws qhov kub thiab txias gradients nyob rau hauv tuab titanium billets.

• Ua kom sov qis dua 600℃kom tsis txhob tawg
• Uniform cua sov los ntawm 600℃mus rau 800 degree
• Soaking ntawm lub hom phiaj forging kub kom billet kub sib txawv nyob rau hauv ± 5 degree
• Resistance furnaces yog nyiam rau precision forging.

 

2. Isothermal soaking tswj

Soaking duration tswj forging zoo.

• Me- thiab nruab nrab-hloov-section billets: 0.8-1.2 min / mm
• Heavy-section billets: 1.2-1.5 min / hli
• Rau multi-heat forging: soak rau 60-90 min ntawm 30-50℃hauv qab no beta-transus kub rau qhov kub thiab txias homogenization thiab nyem ntawm cov qauv kev ntxhov siab.

 

3. Short-cycle low-loss billet transfer

Khaws billet hloov lub sij hawm los ntawm qhov cub kom nias tsawg dua los yog sib npaug li 20 s; txoj hauj lwm furnaces ze rau forging chaw nres tsheb. Siv cov khoom siv ua ntej cua sov thiab cov khoom siv hluav taws xob ua kom sov kom qhov kub poob ntawm qhov cub tawm mus rau qhov tuag nkag / pib forging tsawg dua lossis sib npaug li 10℃kom txo tau cov cua sov.

 

4. Tom qab forging precision txias tswj

Forgings yuav tsum tsis txhob raug ncaj qha rau qhov qhib cua txias.

• Premium forgings: rauv cua txias ntawm qhov txias ntawm 50-80℃/ h
• General forgings: txias nyob rau hauv insulated npog
• Cov kev ntsuas no txo ​​cov kev ntxhov siab seem thiab tiv thaiv kev tawg thiab cov khoom tsis sib xws.

 

 

Ruihang tshwj xeeb hauv cov khoom titanium hauv kev lag luam aerospace. Yog xav paub ntxiv, thov hu rau peb ntawm email:Sam.Rui@bjrh-titanium.com