Titanium thiab stainless hlau tuaj yeem welded, tab sis tsis yog nrog vuam rods.
Cov txheej txheem siv rau vuam titanium thiab stainless hlau muaj xws li tawg vuam, sib txhuam vuam, brazing, nyem taub qab vuam, thiab diffusion vuam.
Cov teeb meem tseem ceeb hauv vuamtitanium thiab titanium alloysrau stainless hlau yog:
1. Qhov sib txawv ntawm qhov sib txawv yog qhov loj, txog 150 degree, uas yuav ua rau poob ntawm Fe thiab evaporation ntawm alloy ntsiab, ua rau nws nyuaj rau welded pob qij txha;
2. Hlau thiab titanium tuaj yeem yooj yim tsim cov sib txuas sib txuas, xws li TiFe, TiFe2, Ti2Fe, thiab lwm yam. Tsis tas li ntawd, cov alloying ntsiab chromium thiab npib tsib xee hauv stainless hlau kuj tuaj yeem tsim cov nkig intermetallic tebchaw nrog titanium. Nyob rau tib lub sijhawm, titanium kuj yog ib qho muaj zog carbide-forming caij, thiab cov pa roj carbon monoxide ua ke los ua nkig TiC.
Ntau cov khoom sib xyaw ua ke sib xyaw ua ke kuj tseem tuaj yeem tsim ntawm titanium, hlau, chromium, thiab npib tsib xee. Vim hais tias cov sib txuas ntawm intermetallic yog cov nkig, cov pob qij txha yuav embrittled. Nyob rau hauv qhov kev txiav txim ntawm welding kev nyuaj siab, nws yog ib qho yooj yim uas yuav ua rau cov kab nrib pleb los yog txawm fractures nyob rau hauv lub welds, uas ua rau cov pob qij txha. Lub plasticity thiab high-temperature zog deteriorate.
3. Lub thermal conductivity, tshwj xeeb kub muaj peev xwm, thiab linear expansion coefficient ntawm ob yog sib txawv heev, ua rau coarse nplej ntawm weld thiab loj vuam deformation.
