Kev cuam tshuam ntawm Titanium Forging Ntawm Cov Khoom Thiab Lub Koom Haum Ntawm TC4 Titanium Rods Thiab Titanium Alloy Rods

TC4 titanium alloy yog siv dav hauv + hom titanium alloy hauv tsev thiab txawv teb chaws, vim nws lub zog tshwj xeeb, zoo corrosion kuj thiab superior tag nrho kev ua tau zoo, nws yog dav siv nyob rau hauv aerospace, tshuaj machinery, kws engineering thiab lwm yam industries.TC4 titanium. alloy feem ntau tsis xws luag yog alloying ntsiab cais thiab inclusions, casting lub koom haum ntawm residue, brittle txheej, hydrogen embrittlement, thiab nkig thiab forging tawg. Tuam Tshoj nyob rau hauv lub sij hawm "Kaum tsib-Xyoo Plan" pib ywj siab tshawb fawb thiab kev loj hlob ntawm ib tug nruab nrab-lub zog siab kev puas tsuaj rau hom titanium alloy, piv nrog rau lwm yam nruab nrab-lub zog titanium alloy titanium rods, nws lub zog, plasticity theem nyob rau hauv cov kev mob ntawm piv rau tej yam kev mob. , nrog ntau dua tawg toughness thiab tawg tsis kam mus rau kev nthuav dav ntawm lub peev xwm los siv dav hauv peb lub teb chaws plaub tiam ntawm aircraft, aircraft thiab lwm yam tseem ceeb qauv ntawm cov khoom tseem ceeb load-bearing Cheebtsam. Siv ob-theem cheeb tsam annealing, ob-theem cheeb tsam khoom tov + kev laus, ib-theem cheeb tsam cov khoom tov + laus txheej txheem kev kho cua sov, cov nyhuv ntawm kev kho cua sov sib txawv ntawm lub microstructure thiab txhua yam khoom ntawm TC4 titanium alloy rods tau tshawb xyuas nyob rau hauv kev txiav txim. kom tau txais cov txheej txheem kho cua sov uas zoo tshaj plaws rau lub zog, plasticity thiab toughness ntawm alloy.
(1) TC4 titanium alloy nyob rau hauv ob-theem cheeb tsam ntawm qhov zoo tib yam annealing thiab recrystallization annealing kev kho mob tshwm sim tom qab recrystallization, lub a-theem loj nce, thiab qhov siab dua qhov annealing kub, qhov qeeb qeeb tus nqi txias, ntau recrystallized tag nrho, thiab a-theem aggregation kev loj hlob tshwm sim, ua rau muaj qhov txo qis hauv lub zog ntawm cov hlau thiab nce hauv plasticity.

(2) nyob rau hauv ob-theem cheeb tsam kev daws teeb meem + kev laus kev kho mob kom tau txais lub koom haum bimodal, nrog rau kev laus kub nce, cov ntsiab lus thib ob a-theem txo qis, txheej txheej loj zuj zus, alloy lub zog thiab tawg toughness txo, lub plasticity yog txhim kho. Thiab thaum tus nqi txias tau nce siab thaum lub sij hawm ua kua, qhov thib ob lamellar a-theem generated thaum lub sij hawm laus yog finer, uas ua rau ib tug nce nyob rau hauv lub zog thiab ib tug txo nyob rau hauv lub plasticity thiab puas toughness ntawm lub alloy.

(3) Nyob rau hauv ib-theem cheeb tsam cov khoom tov dej txias kom tau txais lub koom haum martensitic, ua raws li kev laus kev kho mob, lub plasticity ntawm cov alloy deteriorates sharply, yog nkig puas. Thiab thaum lub hnub nyoog kub nce, cov lamellae yog thickened, tab sis cov nag lossis daus ntawm theem nrab cov ntsiab lus yog txo, lub zog thiab tawg toughness ntawm titanium alloy titanium rods poob. Nyob rau hauv ib-theem cheeb tsam cov khoom tov cua txias kom tau lub Weiss lub koom haum, ua raws li los ntawm high-temperature aging kev kho mob, yuav ua rau ib tug lamellae thickness ntxiv, thiab chaotic intertwining degree yog txo, ua rau ib tug txo nyob rau hauv lub zog, plasticity thiab puas. toughness yog zoo dua.

(4) TC4 titanium alloy bar los ntawm 950C / 1h / WQ+550C / 6h / AC kev kho cua sov, tuaj yeem paub lub zog, plasticity, toughness ntawm kev ua kom zoo ntawm qhov sib tw, thiaj li tau txais cov khoom siv zoo heev.

TC4 titanium bar reforging ntiv nplhaib txheej txheej txheem yog nyob ntawm 950 degrees ob lub sij hawm hluav taws kub, forging rau hauv cov khoom qab zib, khoom qab zib flaring rau hauv cov khoom siv nplhaib, qhov tsis xws luag tej zaum yuav yog vim tsis raug reforging txheej txheem los ntawm kev tawg, tab sis kuj yuav yog lub bar nws tus kheej muaj nyob rau hauv metallurgical defects xws li inclusions, segregation, porosity, thiab lwm yam, thiab nyob rau hauv lub tom ntej reforging txheej txheem los ntawm metallurgical defects tshwm sim los ntawm cracking. Los ntawm kev xam cov theoretical, nws tau txiav txim siab tias qhov kev tsim ntawm no txheej ntawm lub computerized tiaj knitting tshuab catwalk fixture yog tag nrho raws li cov theoretical tsim yuav tsum tau. Yog li tus kws sau ntawv tau ua cov khoom sib dhos no hauv hom, thiab yuav raug muab tso rau hauv Vcentei -70 high-precision CNC machining chaw workbench rau kev ua pov thawj tseeb. Tom qab ntawd cov txheej txheem ua tiav ntawm tus choj mus rau peb qhov kev sib koom ua ke ntsuas lub tshuab rau qhov tseeb ntawm kev ntsuas ntawm ob lub kaum sab xis ntawm lub kaum sab xis ntawm qhov yuam kev nyob rau hauv qhov ntau ntawm 0.2 degree ~ 0.6 degree, nyob rau hauv txoj kab nrog cov kev xav tau. Vim tias cov txheej txheem no tuaj yeem yooj yim heev thiab ceev kom paub txog kev ua haujlwm ntawm qhov chaw flyover, tsis tas yuav muaj lwm txoj hauv kev los nrhiav txoj cai, yog li nws yog qhov tsim nyog rau kev tsim khoom loj ntawm flyover qhov chaw.

Lub forging kub txiav txim siab lub koom haum ntawm titanium alloy, thiab nws yog inevitable los tsim -phase transformation nyob rau hauv lub forging txheej txheem ntawm titanium alloy, thiab cov nram qab no cov lus xaus yuav kos los ntawm kev tshawb fawb ntawm daim ntawv no:

(1) Tsis muaj qhov sib txawv ntawm cov tshuaj lom neeg tseem ceeb ntawm thaj chaw dub thiab thaj chaw ib txwm muaj ntawm TC4 titanium bar, thiab tsis muaj kev sib cais ntawm cov khoom, yog li qhov chaw dub tsis yog lub koom haum hloov theem tshwm sim los ntawm kev sib cais ntawm cov tshuaj muaj pes tsawg leeg. .

(2) TC4 titanium pas nrig dub qhov chaw thaj tsam ntawm p-theem morphology thiab thaj chaw ib txwm muaj qhov sib txawv loj, rau kev tsim ntawm ib-theem cheeb tsam ntawm lub koom haum hloov pauv theem.

(3) Lub koom haum dub ntawm TC4 titanium rods yog ib lub koom haum tsis sib xws uas tsim los ntawm cov theem sib txawv ntawm kev hloov pauv ntawm titanium rods vim qhov tsis sib xws ntawm cov txheej txheem forging. Tsis suav nrog kev cuam tshuam ntawm kev sim ua yuam kev, raws li cov txiaj ntsig kev sim, nws qhia tau tias tsis muaj qhov sib txawv tseem ceeb hauv cov ntsiab lus ntawm Al, V, Fe thiab titanium matrix ntsiab ntawm qhov chaw qis qis dub thiab thaj tsam ntawm titanium rods, uas qhia tau hais tias tsis muaj kev sib cais ntawm cov khoom hauv cheeb tsam dub. Yog li ntawd, tsis muaj kev sib raug zoo ncaj qha ntawm lub koom haum ntawm qis-fold dub me ntsis thiab kev sib cais ntawm cov tshuaj muaj pes tsawg leeg ntawm titanium rods.