Kev Ntsuam Xyuas Ntawm Titanium Hlau Ua Tshuab

Raws li kev ua haujlwm siab - cov khoom siv hlau,titanium nthuav tawm ob qho tib si tshwj xeeb thiab nyuaj hauv nws cov cuab yeej thev naus laus zis.
 

 

Kev sib tw	Cov teeb meem tseem ceeb	Kev daws teeb meem
Fluidity tsis zoo	Cov ntsiab lus melting siab (1668 degree) ua rau nyuaj ua rau cov pwm ua haujlwm nyuaj; pheej hmoo ntawm misrun / txias kaw.	Txais lub tshuab nqus tsev arc remelting / centrifugal casting + siab -purity pwm; nruj me ntsis tswj pouring kub.
Lub shrinkage	1.8%-2.5% solidification shrinkage ua rau muaj kev ntxhov siab vim deformation / tawg.	Khaws cov nyiaj shrinkage loj dua; tsim cov phab ntsa tuab; ua kev ntxhov siab nyem annealing.
Gas Absorption	Gas pores / oxide inclusions degrade mechanical zog thiab corrosion kuj.	Smelt / ncuav nyob rau hauv lub tshuab nqus tsev / inert gas (Ar / Nws) tiv thaiv; degas raw khoom; precisely tswj pouring ceev.
Segregation Tendency	Theem solubility sib txawv ntawm alloying ntsiab + uneven solidification ua regional/grain ciam ciam sib cais, ua rau inconsistent kev ua tau zoo.	Optimize pwm txias tshuab; tswj solidification ceev; ntxiv inoculants; ua homogenization kev kho cua sov tom qab-casting.

 

 

1. Plasticity

Nyob rau hauv chav tsev kub, ntshiab titanium thiab titanium alloys tsis tshua muaj plasticity nrog elongation thiab txo thaj tsam ntau dua li cov uas tsis muaj - carbon steel thiab ntshiab txhuas. Nws yog ib qho yooj yim rau tawg. Nyob rau hauv qhov tshwj xeeb siab - qhov kub thiab txias, plasticity yog txhim kho, tso cai rau lawv tiv taus loj deformation.Titanium siab ua feem ntau yog ua nyob rau hauv lub kub kub, thiab ua nyob rau hauv lub "xiav brittle cheeb tsam" ntawm 200-500℃yuav tsum tau zam, txwv tsis pub ua hauj lwm hardening thiab tawg yuav tshwm sim.

2.Deformation Resistance

Titanium muaj lub zog siab, thiab nws qhov deformation tsis kam ntawm qhov kub thiab txias yog tseem siab dua qhov qis - carbon steel thiab aluminium alloy. Kev ua haujlwm yuav tsum muaj cov khoom siv loj loj thiab ua rau pwm hnyav hnyav.Nws muaj feem xyuam rau kev ua haujlwm kub thiab deformation ceev: nce kub tuaj yeem txo qhov deformation tsis kam, tab sis nws yuav tsum tau tswj hauv qab theem hloov kub; low-kev deformation ceev yog qhov tsim nyog rau cov yas ntws ntawm titanium thiab txo qhov kev pheej hmoo ntawm kev tawg.

3.Forgability

Cov txheej txheem ntawm "me me deformation, ntau dhau" yuav tsum tau txais kev pom zoo kom tsis txhob muaj cov kab nrib pleb los ntawm ib qho - lub sij hawm loj deformation. Tom qab forging, yuav tsum tau ua kom txias ceev kom tsis txhob sib npaug -theem decomposition. Nws yog tsim rau cov txheej txheem, xws li chim siab, kos duab, thiab xuas nrig ntaus. Forgings have a dense internal structure and excellent mechanical properties, and are widely used in structural parts in the aerospace field.

4. Rollability

Titanium muaj qhov zoo tshaj plaws rollability ntawm qhov kub thiab txias, nrog lub dov kub zoo ib yam li forging kub. Nruam cov khoom siv kub dov ua ke nrog kev tiv thaiv roj inert yog yuav tsum tau. Ntshiab titanium thiab qis- alloyed titanium alloys muaj rollability zoo thiab tuaj yeem siv los tsim cov phaj, ntu, kav dej, thiab lwm yam khoom.

 

 

 

5.Extrudability

Titanium's extrudability cia siab rau "siab kub + lub tshuab nqus tsev / inert gas tiv thaiv". Ntshiab titanium nrog cov yas zoo thiab + hom titanium alloy Gr5 yog tsim rau extrusion ua, thiab tuaj yeem tsim cov profiles nrog cov ntoo khaub lig nyuaj - ntu. Kub extrusion txheej txheem yog siv rau extrusion: pwm preheating kub yog hais txog 400-600 degree, lub extrusion ceev yog qeeb, thiab ceev ceev txias yog ua tom qab extrusion los xyuas kom meej qhov tseeb seem thiab cov qauv ntawm cov seem.

 

 

1. Weldability

Hauv kev txiav txim siab dav, titanium muaj kev sib koom ua haujlwm zoo, tab sis yuav tsum muaj kev sib cais nruj ntawm huab cua. Hauv kev nkag siab nqaim, titanium muaj qhov tsis tshua muaj vuam tawg, tab sis siab - alloys titanium alloys yog cov kab nrib pleb txias. Thaum lub sij hawm vuam txheej txheem, lub molten pas dej ua ke thiab cua sov- thaj tsam cuam tshuam yog nquag reacting nrog oxygen thiab nitrogen los ua nkig thiab tawv Ti₂O₃ thiab TiN kom txo toughness ntawm welded sib koom. Kev ua kom txias sai sai yog yooj yim rau kev tsim cov qauv martensite, ua rau cov tawv tawv thiab tawg ntawm kev sib koom ua ke.

2. Weld Formability

Molten titanium muaj cov dej tsis zoo, thiab kev tsim cov vuam yog qhov ua rau muaj teeb meem xws li qhov dav tsis sib xws, kev siv zog ntau dhau, thiab qhov chaw ntxhib. Vuam tsis yuav tsum tau optimized ua ke nrog argon tiv thaiv kom zoo ib yam thiab du weld tsim. Cov txheej txheem vuam feem ntau suav nrog tungsten inert gas welding (TIG) thiab plasma arc vuam. Vuam cov ntaub ntawv yuav tsum siv titanium alloy vuam nyob ntawm tej uas txuam nrog lub hauv paus hlau muaj pes tsawg leeg kom tsis txhob muaj kev sib cais.

4. Weld Crack Sensitivity

Ntshiab titanium thiab - hom titanium alloys muaj qhov tsis tshua muaj vuam tawg rhiab heev, nrog rau qhov kev pheej hmoo tseem ceeb yog kub tawg; + hom thiab - hom titanium alloys yog cov kab nrib pleb txias. Kev tswj xyuas muaj xws li: kev tu nruj ntawm lub hauv paus hlau thiab vuam hlau nto ua ntej vuam; preheating ua ntej welding; qeeb txias tom qab vuam, thiab kev ntxhov siab nyem annealing kom txo tau kev sib koom tes kev nyuaj siab thiab hardness.

5. Tshaj tawm -weld Hardening Tendency

Vim yog cov qauv kev hloov pauv thiab kev daws teeb meem muaj zog, titanium alloy welded pob qij txha muaj qhov pom tseeb tshaj tawm -weld hardening tendency. Nws muaj qhov hardness feem ntau 10%-30% siab dua li ntawm cov hlau hauv paus ua rau kev txiav tom ntej nyuaj dua. Peb xav tau tom qab-weld kho cua sov los txhim kho kev sib koom ua ke, txo cov tawv nqaij, thiab txhim kho cov tawv nqaij thiab kev ua haujlwm. Tom qab-weld flaw detection tuaj yeem txheeb xyuas qhov tsis xws luag xws li qhov pores thiab cov kab nrib pleb rau vuam qhov uas yuav tsum tau muaj siab.

 

Ruihang tsuas yog tsim cov khoom siv titanium, xws li titanium daim hlau, ntawv, tuav, hlau, raj, forgings. Yog tias koj muaj kev xav tau kev yuav khoom, thov hu rau peb: Sam.Rui@bjrh-titanium.com