1. Ingcaciso i-CO2 i-welding welding yi-welding ye-arc ekhusela i-arc indlela esebenzisa i-CO2 yegesi ngobunyulu obungaphezulu kwe-99.8% (indlela yevolumu) njengegesi yokukhusela. Utshintsho lwesekethe olufutshane, ukutshintshwa kwesitshizi kunye nokutshintsha kokutshiza kungasetyenziselwa ukuwelda. Ingasetyenziselwa iwelding yendawo, i-welding ethe nkqo, i-welding ethe tyaba, i-welding ephezulu kunye nayo yonke indawo yokuwelda. Ngokukodwa kufanelekile ukuwelda ngezinto ezimnyama zesinyithi ezifana nekhabhoni yentsimbi, intsimbi yentsimbi kunye nentsimbi engenasici.

2. Ukuphuhlisa i-welding carbon dioxide ekhuselekileyo ukuwelda yiteknoloji entsha ye-welding technology ephuhliswe ngo-1950s. Kwisiqingatha senkulungwane esidlulileyo, iye yakhula yaba yindlela ebalulekileyo ye-fusion welding. Isetyenziswa ngokubanzi kushishino lweemoto, ukwenziwa koomatshini bokwakha, ukwakhiwa kweenqanawa, ukuveliswa kweelokhi, ukuveliswa kwekheshi, ibhoyila kunye noxinzelelo lwenqanawa yokuvelisa, kunye nemveliso yezakhiwo ezahlukeneyo zentsimbi kunye noomatshini bokulungisa isinyithi. Carbon dioxide igesi ukhuselo welding inezibonelelo umgangatho welding elungileyo, ixabiso eliphantsi kunye nokusebenza elula. Esi sisigqibo esichazwe kwangaphambili sokutshintsha i-arc yewelding yesandla kunye ne-welding arc welding. Kwaye i-carbon dioxide igesi yokukhusela i-welding kulula ukuyifumanisa i-NC ye-welding kwi-manipulator okanye i-robot, eya kuba yindlela ephezulu yokufaka i-welding ekuqaleni kwekhulu lama-21. Okwangoku, igesi yokukhusela esetyenziswe kwi-carbon dioxide i-welding welding ihlukaniswe kwi-CO2 kunye ne-CO2 + ar. Iintambo ze-welding ezisetyenzisiweyo ikakhulu ziingcingo ze-manganese silicon alloy welding, i-ultra-low carbon alloy welding wire kunye ne-wire cored welding wire. Iinkcukacha eziphambili zentsimbi ye-welding yile: 0.5, 0.8, 0.9, 1.0, 1.2, 1.6, 2.0, 2.0, 2.5, 3.0, 4.0, njl.

3. Iimpawu 3.1 zeendleko zokuwelda eziphantsi. Irhasi ye-CO2 yimveliso ephuma kwimizi mveliso yotywala nakwimichiza, enemithombo ebanzi kunye nexabiso eliphantsi. Ixabiso layo ngama-40 ~ 50% kuphela e-welding arc welding kunye ne-welding arc welding. Ukuveliswa okuphezulu kwe-3.2, ukungena okuqinileyo kwe-CO2 arc, ukunyibilika okukhulu, ukunyibilika okuphezulu kwentsimbi ye-welding kunye nesantya sokufaka ngokukhawuleza. Imveliso yayo ngamaxesha ali-1 ~ ama-4 e-welding arc yesandla. Uluhlu olubanzi lwe-3.3. Ipleyiti ebhityileyo, ipleyiti eliphakathi kunye ipleyiti elingqingqwa kungenziwa nge welding. I-deformation yeplate ebhityileyo ngexesha lokudibanisa incinci, kwaye yonke indawo yokuwelda inokwenziwa. Ukuxhathisa ngamandla kwe-rust, umxholo we-hydrogen esezantsi kwi-weld kunye nokumelana okuhle. Ukususwa kwe-slag kwe-3.5 akufuneki emva kokuwelda. 3.6 ngenxa ye-arc evulekileyo, kulula ukujonga kunye nokulawula ngexesha lokudibanisa.

4. Izixhobo zentsimbi ze-CO2 4.1. I-CO2 yegesi 4.1.1co2 iipropathi zerhasi ecocekileyo i-CO2 yegesi ayinambala kwaye imuncu kancinci. Ubuninzi be-1.97kg / m3, enzima kunomoya. Xa igesi ye-CO2 icinezelwe ukuya kwi-5 ~ 7MPa kubushushu begumbi, iba lulwelo. Ulwelo lwe-CO2 lukhanya kancinci kubushushu begumbi. Nge-0 ℃, 0.1MPa, 1kg ye-CO2 engamanzi inokuvelisa i-509l yegesi ye-CO2.

4.1.2 igesi esebhotileni i-CO2 isebenzisa isilinda esemgangathweni engama-40L, enokugcwaliswa nge-25kg ye-CO2 engamanzi, ebala malunga ne-80% yesilinda yentsimbi, kwaye indawo eseleyo engama-20% izaliswe yirhasi ye-CO2. Ku-0 ℃, uxinzelelo olugcweleyo luyi-3.63mpa; Nge-20 ℃, uxinzelelo lokugcwala luyi-5.72mpa; Ku-30 ℃, uxinzelelo olugcweleyo yi-7.48 MPa. Ke ngoko, isilinda se-CO2 siya kukhuselwa elangeni okanye kufutshane nomthombo wobushushu ukunqanda ukuqhuma.

4.1.3 Impembelelo yokucoceka kwegesi kwi-CO2 kumgangatho we-welding