Kev Tsim Khoom Ntawm Gr12 Titanium Alloy Sawb Los Ntawm Kub Nruam Rolling Mill

Gr12 titanium alloyyog ib qho ze ntawm - corrosion-resistant alloy nrog cov khoom zoo tshaj plaws thiab dav daim ntawv thov scenarios. Kub nruam dov yog txheej txheem tseem ceeb rau loj - nplai loj ntawm nws cov sawb. Qhov no Titanium alloy muaj qhov nqaim dov kub ntau, tsis zoo thermal conductivity, siab deformation kuj thiab siab nyiam lo rau yob. Nws yooj yim ua rau muaj teeb meem xws li inhomogeneous microstructure, deg defects thiab dimensional deviation thaum ua.

 

 

1. Kev sib xyaw thiab Microstructure

Gr12 titanium alloy siv titanium ua lub hauv paus, nrog molybdenum thiab npib tsib xee ntxiv thiab impurities nruj me ntsis tswj; cov matrix feem ntau yog -theem nrog me me ntawm -phase. Molybdenum refines nplej thiab txhim kho siab - kub lub zog, thaum npib tsib xee txhim kho corrosion kuj thiab kub ua hauj lwm, ua rau nws haum rau kub nruam dov.

 

2. Cov teeb meem tseem ceeb hauv Kub Nruam Rolling

Qhov nqaim theem hloov pauv kub ntau ua rau nws nyuaj rau tswj qhov kub thiab txias. Ua ke nrog cov thermal conductivity tsis zoo, nws yog qhov ua rau cov nplej tsis zoo, tawg thiab inhomogeneous microstructure thiab cov khoom.

• Nws yooj yim lo rau yob ntawm qhov kub thiab txias, ua rau muaj qhov tsis xws luag, thiab yuav tsum muaj kev sib txuam nruj ntawm dov tsis.
• Loj elastic springback ua rau tsis sib xws thickness thiab ntug nthwv dej nyob rau hauv nyias strips, thiab multi-dav dov aggravates anisotropy.
• Yooj yim oxidation ntawm qhov kub thiab txias; Tsis tiav descaling impairs tom qab ua thiab corrosion kuj.

 

 

1. Kev sim cov khoom siv raw

Gr12 titanium alloy slabs npaj los ntawm VAR melting + forging raug xaiv, thiab milled kom tshem tawm oxide nplai thiab deg tsis xws luag kom tau raws li qhov yuav tsum tau ua kom zoo.

 

2. Cov khoom siv sim

Kev ntsuam xyuas tau ua tiav ntawm 1450 hli kub nruam dov ntau lawm kab, nruab nrog cua sov, descaling, ntxhib thiab tiav dov, txias, coiling thiab tsis siv neeg ntsuas thiab cov qauv tswj; siab -chromium cam khwb cia hlau yob ua tau raws li qhov yuav tsum tau muaj ntawm hardness thiab nto precision rau dov.

 

3. Kev sim txheej txheem

• Optimize cua sov system: txwv dov pib kub thiab tuav lub sij hawm los xaiv qhov zoo tshaj plaws cua sov tsis.
• Formula multi-dav dov tsis: tswj txo tus nqi, dov ceev, xov thiab coiling kub ntawm txhua qhov dhau, thiab tshawb xyuas cov txheej txheem ntawm microstructure thiab cov khoom los ntawm kev ntsuam xyuas orthogonal.
• Tom qab- dov annealing: teeb tsa qhov kub thiab txias thiab tuav lub sijhawm kom tshem tawm cov kev ntxhov siab sab hauv, homogenize microstructure thiab txhim kho plasticity.

 

4. Cov txheej txheem kuaj

Metallographic soj ntsuam, tensile xeem, nto roughness ntsuas thiab ultrasonic kuaj tau txais yuav los soj ntsuam microstructure, mechanical zog, nto zoo thiab sab hauv tsis xws luag.

 

 

1. Cua sov System

Qhov ntsuas kub tsis tsim nyog thiab tuav lub sijhawm ua rau tawg, oxidation, cov nplej tsis zoo thiab kev ua haujlwm tsis zoo. Qhov zoo tshaj plaws system: cua sov ntawm900 ± 20 degree, tuav2.0 min / hli, nrog rau qhov kub thiab txias, tsis tshua muaj oxidation thiab zoo microstructure, haum rau dov.

 

2. Kev cuam tshuam ntawm Rolling Parameters

• Tiav kub ntawm800-850 degreeyields nplua nplej thiab sib npaug zog thiab plasticity; deviation deteriorates microstructure thiab zog thiab nce anisotropy.
• Rough dov txo tus nqi ntawm18%–22%thiab tag dov txo tus nqi ntawm12%–18%xyuas kom txaus recrystallization thiab txo cov ntug cracking thiab nto defects.
• Zoo sib xws dov ceev: ntxhib dov ntawm2.5–3.5 m/s, ua kom tiav dov ntawm6–7 m/s, kom tsis txhob kub poob khawb, coarse nplej los ntawm tshav kub tsub zuj zuj thiab seem sib txawv.

 

3. Sawb Shape thiab Surface Control

Optimize dov tswj system thiab nro los txhim kho thickness sib txawv thiab sawb zoo; ua ke nrog siab -siab dej theem nrab descaling kom tshem tawm oxide nplai thiab txhim kho qhov zoo.

 

4. Txheej txheem Annealing

Qhov zoo tshaj plaws annealing system yog700℃tuav rau 45 min, uas tshem tawm cov kev ntxhov siab sab hauv, homogenizes microstructure thiab txhim kho plasticity; Qhov kub tsis tsim nyog yuav ua rau muaj kev ntxhov siab seem, cov nplej ntxhib thiab txo cov tawv nqaij.

 

 

Kev ua tiav cov txheej txheem kub kub txuas ntxiv rau Gr12 titanium sawb yog txiav txim siab: slab xov, txheej txheem cua sov thiab tuav, tsim nyog faib cov nqi txo thiab dov ceev, nruj kub tswj ntawm txhua theem, thiab qis - kub annealing tom qab dov.

Cov khoom lag luam loj tau ua tiav qhov zoo, tsim nyog sawb zoo, qhov ntev, qhov chaw thiab cov khoom siv kho tshuab, tsis tshua muaj anisotropy, tsis muaj qhov tsis xws luag, thiab kev tsim nyog tus nqi ntau dua.98%. Nws ua tau raws li tshuaj lom neeg thiab dej hiav txwv ua haujlwm, tuaj yeem hloov pauv kev xa khoom, thiab txo cov nqi thiab txhim kho kev ua haujlwm.

 

 

Ruihang, raws li lub Hoobkas ncaj qha ntawm titanium cov khoom tsim, yog specilized hauv R & D, ntau lawm. Lub tuam txhab nyob rau hauv "Tuam Tshoj lub Titanium Valley", boosting titanium kev lag luam nyob rau hauv lub ntiaj teb no. Yog tias koj muaj kev xav tau kev yuav khoom, thov hu rau peb:Sam.Rui@bjrh-titanium.com.

 

Cov ntaub ntawv

[1] Zhang Xiyan, Zhao Yongqing, Bai Chenguang. Titanium Alloy cov ntaub ntawv thiab kev siv [M]. Beijing: Chemical Industry Xovxwm, 2005.
[2] Northwest lub koom haum rau Nonferrous Hlau Tshawb Fawb. Titanium Alloy Processing Technology Phau Ntawv [M]. Xi'an: Northwestern Polytechnical University Xovxwm, 2012.
[3] Panzhihua Iron & Steel Co., Ltd. Txoj kev tswj kom zoo ntawm kub dov titanium thiab titanium alloy sawb kauj [P]. Tuam Tshoj Patent: CN113976624B, 2023-11-21.
[4] GB/T 3621-2022, Titanium thiab Titanium Alloy Phaj thiab Cov Ntawv [S]. Beijing: Tus Qauv Xovxwm ntawm Tuam Tshoj, 2022.