Titanium Alloy Welding
He koranu wahanga kotahi i tito i te otinga totoka β-waahanga. Kaore he maimoatanga wera, he kaha ake te kaha. I muri tinei me te hoholo, te koranu he advanced.One taahiraa whakapakari, te kaha pāmahana rūma taea tae 1372 ~ 1666 MPa; Engari he ngoikore te pumau o te waiariki, kaua e whakamahia i te wera nui.
Ko te koranu biphasic, he pai nga waahanga matawhānui, he pai te hanganga o te hanganga, he pai te pakari, he kirihou me nga ahuatanga rereke o te pāmahana, ka pai ake mo te tukatuka pehanga wera, ka taea te tineia, te pakeke ki te whakapakari i te koranu. Ko te kaha i muri i te maimoatanga wera e tata ana ki te 50% ~ 100% teitei ake i tera i muri i te whakaene; Ko te kaha o te pāmahana teitei, ka taea te mahi i roto i te 400 ℃ ~ 500 ℃ te pāmahana mo te wa roa, he iti ake te pumau o te waiariki ki te α titanium alloy.
I roto i nga huinga titanium e toru, ko te mea tino whakamahia ko te α titanium alloy me te α+β titanium alloy; Ko te mahi tapahi o te α titanium alloy te mea pai rawa atu, whai muri ko te α+β titanium alloy, a ko te β titanium alloy te mea kino rawa atu. α titanium alloy code mo TA, β titanium alloy code for TB, α+β titanium alloy code for TC.
Ka taea te wehea te koranu Titanium ki te koranu whakamahana wera, te koranu kaha teitei, te koranu waikura (titanium - molybdenum, te titanium - te koranu palladium, me etahi atu), te koranu iti o te pāmahana me te koranu mahi motuhake (titanium - he taonga rokiroki hauwai me te titanium - mahara nickel. koranu). Ko te hanganga me nga ahuatanga o nga koranu angamaheni kua whakaatuhia ki te ripanga.
Ko nga momo waahanga rereke me te microstructure o nga koranu titanium wera-wera ka taea te whiwhi ma te whakatika i te tukanga maimoatanga wera. E whakaponohia ana he pai ake te kirihou o nga hanganga equiaxed pai ake, he pai ake te waiariki me te kaha ngenge. Ko te hanganga spiculate he mauroa teitei, te kaha ngokingoki me te uaua whati. He pai ake te matawhānui o nga kopa whakauru equiaxial me te ngira-rite. Ko te Titanium he momo whakarewa hou, ko te mahi o te titanium e pa ana ki te ihirangi o te waro, te hauota, te hauwai, te hāora me etahi atu poke, ko te mea pokekore o te titanium iodide e kore e neke atu i te 0.1%, engari he iti tona kaha, he kirihou teitei. .
Ko nga ahuatanga o te 99.5% titanium parakore o te ahumahi e whai ake nei: kiato ρ=4.5g/ cubic cm, ira whakarewa 1725 ℃, kawe waiariki λ=15.24W/(mK), kaha tensile σb=539MPa, elongation δ=25%, wahanga te whakaheke ψ=25%, te kōwae elastic E=1.078×105MPa, te pakeke HB195. Ko te kiato o te titanium koranu te tikanga e pā ana ki 4.51g / henimita pūtoru, anake 60% o te maitai, te kaha o te Titanium parakore he tata ki te kaha o te maitai noa, etahi kaha teitei koranu titanium nui atu te kaha o te maha maitai hanganga koranu. Na reira, ko te kaha motuhake (te kaha / te kiato) o te koranu titanium he nui ake i tera o etahi atu mea hanga whakarewa, penei i te Ripanga 7-1. Ka taea e ia te whakaputa i nga waahanga me nga waahanga me te kaha o te waeine teitei, te pakari pai me te taumaha marama. I tenei wa, ka whakamahia nga miihini titanium ki nga waahanga miihini, angaahi, te kiri, nga piriti me nga taputapu taunga.