Li-alloys tsa Titanium li na le letsoalo le tlase, matla a khethehileng a phahameng, ho hanyetsa kutu ho hotle, conductivity e tlase ea mocheso, e seng chefo le e seng ea makenete, 'me e ka chesetsoa; li sebelisoa haholo ho lifofane, sefofane, lik'hemik'hale, peterole, motlakase, bongaka, kaho, thepa ea lipapali le masimo a mang.
Mekhoa e tloaelehileng ea ho tjheseletsa ea titanium le li-alloys tsa titanium e kenyelletsa: welding ea argon arc, welding ea arc e ka tlas'a metsi, vacuum electron beam welding, joalo-joalo.
Ho itokisa pele ho tjheseletsa
Boleng ba bokaholimo ba terata ea weldment le titanium welding e na le tšusumetso e kholo ho thepa ea mochini ea lenonyeletso, ka hona e tlameha ho hloekisoa ka thata.
1) Ho hloekisa ka mochini: Bakeng sa li-welds tse sa hlokeng boleng bo holimo kapa ho thata ho li khetha, ho ka sebelisoa sandpaper e ntle kapa terata ea tšepe e sa hloekang ho li hlakola, empa ho molemo ho sebelisa carbide yellow ho hlakola poleiti ea titanium ho tlosa filimi ea oxide.
2) Ho hloekisa lik'hemik'hale: Pele ho tjheseletsa, sengoathoana sa tlhahlobo le terata ea welding li ka khethoa. Tharollo ea pickling e ka ba HF (5%) + HNO3 (35%) tharollo ea metsi. Hlatsoa ka metsi a hloekileng ka mor'a ho kha, 'me u chese hang ka mor'a ho omisa. Kapa sebelisa acetone, ethanol, carbon tetrachloride, methanol, joalo-joalo ho hlakola groove ea poleiti ea titanium le mahlakoreng ka bobeli (ka har'a 50mm ka 'ngoe), bokaholimo ba terata ea welding, le karolo eo sesebelisoa se kopanang le poleiti ea titanium.
3) Khetho ea lisebelisoa tsa ho tjheseletsa: Bakeng sa tjheseletsa ea argon ea lipoleiti tsa titanium le titanium alloy tungsten, mohloli oa motlakase oa DC argon arc o nang le litšobotsi tsa ka ntle le qalo ea maqhubu a phahameng a arc e lokela ho khethoa, 'me nako e liehang ea ho fana ka khase e lokela ho ba tlase ho feta. Metsotsoana e 15 ho qoba oxidation le tšilafalo ea weldment.
4) Khetho ea lisebelisoa tsa ho tjheseletsa: Bohloeki ba khase ea argon ha boa lokela ho ba ka tlase ho 99.99%, ntlha ea phoka e lokela ho ba ka tlase ho -40 ℃, 'me karoloana eohle ea boima ba litšila e lokela ho ba 0.001%. Ha khatello e ka har'a silinda ea argon e theohela ho 0.981MPa, e lokela ho emisoa ho thibela ho ama boleng ba lenonyeletso le cheselitsoeng.
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5) Tšireletso ea khase le mocheso oa ho tjheseletsa: Lenonyeletso la peipi ea titanium le tlase nakong ea ho cheselletsa. E le ho thibela lenonyeletso le cheselitsoeng hore le se ke la silafatsoa ke likhase tse kotsi le likarolo tsa mocheso o phahameng, sebaka sa welding le weld se tlameha ho behoa tlas'a tšireletso e hlokahalang le taolo ea mocheso, 'me mocheso o lokela ho ba ka tlase ho 250℃.
Litaelo tsa Ts'ebetso
1. Ha o etsa tjheseletso ea argon arc manual, bonyane angle (10 ~ 15 °) e lokela ho bolokoa pakeng tsa terata ea welding le weldment. Mohala o tjheseletsang o lokela ho feptjwa ka hara letangwana le qhibidihang butle le ka ho lekana ho bapa le pheletso e ka pele ya letamo le qhibidihang, mme pheletso ya terata ya ho tjheseletsa ha e a lokela ho suthiswa sebakeng sa tshireletso ya argon.
2. Ha ho cheselletsa, sethunya se cheselletsang ha e le hantle ha se thekesele se otlolohile. Ha e hloka ho sisinyeha, maqhubu a lokela ho ba tlaase 'me amplitude ea swing ha ea lokela ho ba khōlō haholo ho thibela ho ama tšireletso ea khase ea argon.
3. Ha o pshatla arc le ho qeta weld, tsoela pele ho fetisa ts'ireletso ea argon ho fihlela weld le tšepe sebakeng se amehileng ke mocheso li pholile ho ea ka tlase ho 350 ℃ pele u tlosa sethunya sa welding.
'Mala oa bokaholimo ba weld le sebaka se anngoeng ke mocheso
1. Weld zone
Bosoeu ba silevera, bosehla bo bobebe (bo lumelletsoeng bakeng sa li-welds tsa boemo ba pele, ba bobeli le ba boraro); mosehla o lefifi (o lumelletsoe bakeng sa li-welds tsa boemo ba bobeli le ba boraro); pherese ea khauta (e lumelletsoeng bakeng sa li-welds tsa boemo ba boraro); boputsoa bo lefifi (ha bo lumelloe bakeng sa li-welds tsa boemo ba pele, ba bobeli le ba boraro).
2. Sebaka se anngoeng ke mocheso
Bosoeu ba silevera, bosehla bo bobebe (bo lumelletsoeng bakeng sa li-welds tsa boemo ba pele, ba bobeli le ba boraro); bosehla bo lefifi, bo pherese ba khauta (bo lumelletsoeng bakeng sa li-welds tsa boemo ba bobeli le ba boraro); boputsoa bo lefifi (bo lumelletsoeng bakeng sa li-welds tsa boemo ba boraro).
Nako ea poso: Aug-20-2024
