Weldingyakavhenganiswa yekudzivirira gasiyakagadzirirwa kuvandudza kunaka kwewelds. Iwo magasi anodiwa kune yakasanganiswa gasi ndiwo zvakare akajairika welding shielding magasi akadaioksijeni, carbon dioxide, argon, etc. Kushandisa gasi rakasanganiswa panzvimbo pegasi rimwe chete rekudzivirira kwekudzivirira kune simba rakanaka rekunatsa zvakanyanya madonhwe akanyungudutswa, kukurudzira weld kutsvedzerera, kuvandudza kuumbwa, uye kuderedza chiyero che pores, uye inonyanya kufarirwa mu welding, kucheka uye mamwe maindasitiri.

Parizvino, iyo inonyanya kushandiswamagasi akasanganiswainogona kukamurwa kuita bhinari yakasanganiswa magasi uye ternary yakasanganiswa magasi zvichienderana nerudzi rwegasi akasanganiswa.

Chiyero chechikamu chimwe nechimwe mumhando yega yega yegasi rakasanganiswainogona kusiyanisa muhombe siyana, iyo inonyanya kutariswa nezvinhu zvakawanda senge welding process, welding material, welding wire model, etc. Kazhinji kutaura, kukwira kwezvinodiwa zve weld quality, kunowedzera kuchena kunodiwa kwegasi rimwe chete rinoshandiswa kugadziriragasi rakasanganiswa.

Zvikamu Zviviri Zvakasanganiswa Gasi

Argon+Oxygen

Kuwedzera huwandu hwakakodzera hweoksijenikune argon inogona kunyatso kuvandudza kugadzikana kwearc uye kunatsa madonhwe akanyungudutswa. Iyo okisijeni inopisa-inotsigira zvivakwa zvinogona kuwedzera tembiricha yesimbi mudziva rakanyungudutswa, kukurudzira kuyerera kwesimbi, kuderedza kukanganiswa kwewelding, kuita weld kupfava, uye nekumhanyisa kumhanya kwewelding uye kunatsiridza kugona kwewelding. Pamusoro pezvo, iyo okisijeni + argon inodzivirira gasi ine huwandu hwakasiyana hwekushandisa uye inogona kushandiswa kugadzira kabhoni simbi, yakaderera alloy simbi uye simbi isina tsvina yehukobvu hwakasiyana.

Argon+Carbon Dioxide

Carbon dioxide inogona kunatsiridza simba reweld uye corrosion resistance, asi pure carbon dioxide inodzivirira gasi inomwaya yakawandisa, izvo zvisingaenderane nekushanda kwevashandi. Kuisanganisa ne argon yakagadzikana kunogona kunyatso kudzikisa simbi inoputika. Kushandisa zvikamu zvakasiyana zveokisijeni + argon shielding gasi kune zviri pachena zvakanakira welding kabhoni simbi uye simbi isina tsvina.

Argon+Hydrogen

Hydrogenigasi rinoderedza kupisa-rinotsigira risingango wedzera tembiricha yearc, kukurumidza kumhanyisa kumhanya, uye kudzivirira kudonha, asi zvakare kuderedza mukana weCO pores kuumba uye kudzivirira hurema hwewelding. Iyo ine yakanakisa welding mhedzisiro pane nickel-based alloys, nickel-copper alloys, uye simbi isina tsvina.

Zvitatu Zvikamu Zvakasanganiswa Gasi

Argon+Oxygen+Carbon Dioxide

Iyi ndiyo inonyanya kushandiswa zvikamu zvitatu zvegasi musanganiswa, une mubatanidzwa wekudzivirira mhedzisiro yezvikamu zviviri zviri pamusoro pegasi musanganiswa.Okisijeniinobatsira kupisa, inogona kunatsa madonhwe akanyungudutswa, kuvandudza weld mhando uye kumhanya kwewelding; carbon dioxide inogona kuvandudza weld simba uye corrosion resistance, uye argon inogona kuderedza spatter. Kune welding yekabhoni simbi, yakaderera alloy simbi uye simbi isina tsvina, iyi ternary gasi musanganiswa ine yakanyanya kudzivirira.

Argon+Helium+Carbon Dioxide

Heliuminogona kuwedzera kupisa simba rekuisa, kunatsiridza yakanyungudutswa dziva fluidity uye kukurudzira weld kuumbwa. Nekudaro, nekuti helium igasi inert, haina mhedzisiro pane oxidation uye alloy kupisa kweweld simbi. Naizvozvo, inogona kushandiswa kugadzira simbi yekabhoni uye yakaderera alloy simbi pulse jet arc welding, yakakwirira-simba simbi, kunyanya-nzvimbo-yepfupi-yedunhu transition welding, uye simbi isina tsvina zvese-nzvimbo pfupi-circuit arc welding nekugadzirisa zviyero zvakasiyana.