Hom duab ntxaij, cov ntsiab lus melting, thermal kev coj ua, coefficients ntawm linear nthuav tawm, thiab titanium daim phiaj yog qhov sib txawv heev, ua rau vuam nyuaj heev.
1, Vuam Seam yog qhov yooj yim los ua porosity
(1) Tooj thiab Titanium Kub Kub Ha Kub Kub Heev Kub Kub, hydrogen hauv cov kua tooj liab ntawm tooj liab thiab titanium nyob rau hauv ib tug loj solubility.
(2) Kev kub kub-ntsuas kub me me ntawm cov roj pas dej molten ntawm cov roj.
(3) Cov pa oxygen thiab nitrogen gases ncig lub teb chaw vuam rau hauv lub pas dej molten. Lub pas dej qhuav crystallization, cov roj tsis tuaj yeem khiav dim ntawm qhov chaw ntawm lub pas dej me me, ntxiv nyob rau hauv weld los ua pores.
2, welded pob qij txha sib nraus
Tooj liab thiab titanium vuam, hauv ob tus hlau hlau tuaj yeem tsim cov siv lead ua ib txwm muaj peev xwm ua cov kab nrib pleb hauv kev sib tsoo.
(1) Tooj liab thiab bismuth daim ntawv Eutectic taw tes ntawm 270 degree (CU + BI bI) EUTECT.
(2) Tooj liab thiab txhuas los ua lub eutectic taw tes ntawm 326 degree (CU + PB) EUTECT.
(3) Tooj liab thiab ferrous sulfide sau ib co-lead ntawm (CU + CU2O) nrog EUTECT PARART ntawm 1067 degree.
(4) Cov ntaub ntawv titanium flaky hydride tih2 ntawm cov hlau ntawm cov khoom siv ntawm niam txiv, tsim cov khoom siv hydrogenlementlined.
(5) Tooj liab thiab titanium kab nthuav kev coefficiecic sib txawv ntawm ntau dua 1 zaug, vuam yuav ua rau muaj kev ntxhov siab ntau dua.
3, Qes cov khoom siv tsis tshua muaj cov khoom siv welded
(1) Cov yeeb yaj kiab oxide tuaj yeem ua rau tsis muaj zog ntawm cov tooj liab thiab titanium, xws li weldsgen li {}}. 30 Degur Down mus txog 120 degree.
(2) Coob tus ntawm cov cry-can thiab cov dej num ntau dua txo cov plasticity thiab kev sib koom ua ke ntawm welded pob qij txha.
(3) Cov kev sib nrig sib pab ntawm tooj liab thiab titanium yog heev me me, thiab nws yog ib qho yooj yim los tsim intermetallic tebchaw ntawm qhov kub. Xws li Ti2cu, Ti2CU, Ti3CU4, Ti3CU3, Ticu2, ticu4, nce ntxiv rau corrosion tsis kam ntawm weld hlau.
Tooj liab thiab titanium los yog titanium alloy siv nqus tsev vuam, ntshav vuam, brazing thiab electron nqaj vuam tuaj yeem tau txais cov pob qij txha zoo nkauj.
Piv txwv li: kev siv lub tshuab nqus tsev dedusion vuam, nqus tsev dundusion vuam yog cov cim los ntawm pob qij txha tsis oxidize, weld tsos, khoom zoo. Cov txheej txheem tseem ceeb yog: vuam tooj liab cov hlau (xws li T2) nrog T2) nrog TRHHLorethylene ntxuav, tshem tawm cov roj thiab lwm cov khib nyiab. Tom qab ntawd nyob rau hauv 10% sulfuric acid daws etching 1min, thiab tom qab ntawd ntxuav nrog dej distilled, thiab tom qab ntawd anerging kev kho, anevering lub sij hawm ntawm 10min.
Tom qab titanium puag hlau (TA2) tau ntxuav nrog cov tshuaj aquehleneylene, nws tau muab cov yeeb yaj kiab harp thiab 50% los ntawm cov yeeb yaj kiab oxide, thiab tom qab ntawd ntxuav kom huv nrog dej thiab haus dej.
(4) Siv ob hom hlau ua ke tau sib sau ua ke raws li cov txheej txheem tseev kom muaj, thiab tom qab ntawd mam muab tso rau hauv lub tshuab nqus tsev ua rau vuam. Lub vuam qhov tsis yog: vuam kub ntawm 810 degree, siab ntawm 5 ~ 10 teev, nqus dej ntawm 1.33332} {{mpa mpa mpa. Nruab nrab ntawm ob lub hauv paus cov hlau tuaj yeem raug ntxiv rau nruab nrab ntawm diffusion txheej, feem ntau diffusion txheej ntawm niobium hlau, lossis tsis ntxiv nruab nrab ntawm cov txheej txheem sib txawv. Cov saum npoo ntawm cov sib koom ua ke yuav tsum ua tib zoo ntxuav tom qab vuam.
Xws li kev siv Argon arc vuam tooj liab thiab teeline tungsten electrode tuaj yeem txhim kho kev noj qab haus huv hauv tib neeg. Xws li vuam cig copper alloy (QCr {{}}. 5), Niobium alloy (tc2), Niobium alloy (tcon
