Palo e nepahetseng ea mocheso e bohlokoa mecheng ea ho cheselletsa linate ho netefatsa taolo e nepahetseng ea mocheso nakong ea ts'ebetso ea welding. Ho utloisisa mocheso o hlahisoang le ho fetisoa ho bohlokoa bakeng sa ho boloka maemo a nepahetseng a ts'ebetso, ho thibela ho futhumala ho feteletseng, le ho netefatsa li-welds tsa boleng bo phahameng. Sengoliloeng sena se fana ka tlhahlobo ea liforomo tsa lipalo tsa mocheso tse sebelisoang mecheng ea ho cheselletsa linate, ho hlalosa bohlokoa ba tsona le ts'ebeliso ea tsona ho khetholla mekhahlelo ea mocheso.
- Moloko oa Mocheso: Ho hlahisa mocheso mochining oa ho cheselletsa linate ho etsahala haholo ka lebaka la ho hanyetsa motlakase sebakeng sa weld. Mocheso o hlahisoang o ka baloa ho sebelisoa foromo: Mocheso (Q) = I^2 * R * t Moo:
- Q ke mocheso o hlahisoang (ka li-joules kapa watts)
- Ke 'na hona joale oa welding (ka li-amperes)
- R ke khanyetso ea motlakase sebakeng sa weld (ka ohms)
- t ke nako ea ho cheselletsa (ka metsotsoana)
- Phetisetso ea Mocheso: Mocheso o hlahisoang nakong ea welding o tlameha ho laoloa ho thibela ho futhumala ho feteletseng. Lipalo tsa phetisetso ea mocheso li thusa ho fumana litlhoko tsa ho lahla mocheso. Foromo ea ho fetisa mocheso e kenyelletsa ho nahana ka lintlha tse kang conduction, convection, le radiation. E ka hlalosoa e le: Q = Q_conduction + Q_convection + Q_radiation Moo:
- Q_conduction e emela mocheso o fetisitsoeng ka ho kopana ka ho toba pakeng tsa workpiece le li-electrode.
- Q_convection e ikarabella bakeng sa ho fetisa mocheso moeeng o potolohileng kapa sebakeng se phodileng.
- Q_radiation e bolela ho fetisa mocheso ka mahlaseli a motlakase.
- Litlhoko tsa ho Pholisa: Ho boloka mocheso o nepahetseng oa ts'ebetso, sekhahla sa ho qhala mocheso se tlameha ho lumellana le sekhahla sa tlhahiso ea mocheso. Litlhoko tsa ho pholisa li ka baloa ho sebelisoa foromo: Q_dissipation = Q_generation Moo:
- Q_dissipation ke sekhahla sa ho qhala mocheso (ka li-joules motsotsoana kapa li-watts)
- Q_generation ke sekhahla sa ho hlahisa mocheso
Ka ho bala ka mokhoa o nepahetseng mocheso o hlahisoang le ho utloisisa mekhoa ea ho fetisa mocheso, basebetsi ba ka etsa bonnete ba ho laola mocheso o sebetsang hantle ka mechine ea ho cheselletsa linate. Sena se thusa ho thibela ho futhumala ha lisebelisoa, ho ntlafatsa boleng ba weld, le ho ntlafatsa ts'ebetso ea welding ka kakaretso.
Liforomo tsa lipalo tsa mocheso li bapala karolo ea bohlokoa ho lekanyeng tlhahiso ea mocheso, phetisetso ea mocheso le litlhoko tsa ho pholisa mochining oa ho cheselletsa linate. Ka ho bala le ho laola mocheso ka nepo, basebelisi ba ka netefatsa maemo a nepahetseng a ts'ebetso, ba thibela ho chesa haholo, 'me ba fihlella li-welds tsa boleng bo holimo. Ho utloisisa liforomo tsena ho thusa basebelisi ho etsa liqeto tse nepahetseng mabapi le li-parameter tsa welding, litsamaiso tse pholileng le mekhoa ea ho qhala mocheso. Qetellong, taolo e nepahetseng ea mocheso e lebisa ho ntlafatseng ts'ebetso ea tjheseletsa, nako e telele ea nako ea lisebelisoa, le tlhahiso e ntlafalitsoeng lits'ebetsong tsa ho cheselletsa linate.
Nako ea poso: Jul-17-2023
