Argon Welding aluminiyamu: yiziphi yinkimbinkimbi

Udaba izindlela etholakalayo kakhulu Welding aluminiyamu ngefomu okumsulwa kanye Alloys yayo ehlukahlukene ngempela efanele ephathelene nesicelo sabo ezibanzi. Omunye ubuchwepheshe ezivamile kubhekwe argon Welding aluminium. Ngokuvamile ashiselwe netermouprochnyaemye deformable aluminiyamu lapho lobuchwepheshe aluminium (amamaki AD AD1) esekelwe aluminiyamu futhi manganese (AMTS), i-aluminiyamu nezinye magnesium (AlMg). Alloys okunjalo okungcono zihlanganisa nzima-to. Ngoba bajwayele, uma ukwelashwa ukushisa kungenzeka isakhiwo.

Alumina ukwakha ifilimu refractory phezu workpiece (TM Al ₂ O ₃ = 2050 ° C), ukuba kwabantu sibe sikhulu kunesihlalo metal uqobo. Lapho kubhujiswa oxide ifilimu izinhlayiya zayo ukungcolisa okugeza eziphothene, sibe nzima emaphethelweni uxhumano. Ngakho-ke argon Welding aluminiyamu kungcono ngemva mechanical oxide ukususwa noma isizinda etching kanye yamathebhu izinsimbi. eyinkimbinkimbi engeziwe futhi kubangela umehluko okukhulu phakathi Al encibilika (TM = 660 ° C) futhi oxide yayo.

Lapho i argon Welding ne-non-consumable tungsten electrode aluminiyamu, i zamanje kushintshana sisetshenziswa. Kulokhu, ifilimu oxide libhujiswa ngo reverse polarity isigamu-imijikelezo lapho i electrode kuyinto 70% ukushisa kwesizukulwane arc, futhi umkhiqizo - 30% (sputtering kwenzeka).

amandla we metal incipha ngokucijile at okushisa ephakeme, okungase kubangele ukubhujiswa unmelted ingxenye onqenqemeni ngaphansi isisindo wechibi weld. ncibilika Ukwandiswa ageleze Al kwandisa amathuba ukuvuza kusukela empandeni le weld. Ukuze uvimbele ezishile zokubhala kanye weld ukwehluleka, uma kwenziwa argon Welding ubuchwepheshe kungasho ukusetshenzisa obumba Ceramic (graphite steel) pads. Cosi, Welding noma kokuqala olulodwa-ungqimba metal izingqimba ne-multi-umphetho.

Kuvele nokuthambekela okwandayo ukuba warping ze-aluminium zinganqotshwa ngokufeza Welding ngemibandela lokushisa elilungile kanye ukufudumala izingcezu umsebenzi. Livela hydrogen weld porosity, lubonakale ikakhulukazi Alloys nge-magnesium, esebenzisa Ukushisa kuyehla kube T = 150-250 ° C ngaphambi nangesikhathi Welding, futhi ngumuntu wekulihlanta of imiphetho kanye ashiselwe wire. Ukuze avele imifantu ashisayo, ezivuzayo akufanele eseduze nomunye. Libuye kwalokho okungenzeka modifiers ekhethekile ekusimamiseni isizinda.

Argon aluminium Welding kuhilela ukusetshenziswa zokuzivikela imvelo gaseous ka inert argon igesi displacing emkhathini emoyeni kusukela okugeza weld plasma arc. Kusebenza angase AR (isigaba eliphakeme noma kuqala). Enye samuntu Ukuvikelwa --helium, ingxube ane-helium ne argon, kodwa ke igesi ukugeleza zokuzivikela ngandlela-thile anda.

Ububanzi nonconsumable tungsten electrode (ngaphandle okumsulwa, noma wasebenzisa lanthanised ittrirovannye) kuyakhethwa kuncike umkhiqizo ukujiya. Njengoba ukwaziswa yamathebhu izenzo Welding wire amamaki ezihlukahlukene, kuye ngezi- indlela yokwakheka main umkhiqizo kanye onqenqemeni ukujiya. Eliphezulu argon Welding izandla siqu engenziwa i zamanje kushintshana (UDG uhlobo ukufakwa) ne izindlela ezidingekayo, okuyinto Ukhethe UWelder abanolwazi. I saqala kufanele kuqala bajwayelane imithombo izincwadi, ecacisa izindlela futhi ezicashile Welding aluminium.