Ukubala ukushisa okuchanekileyo kubalulekile kumatshini we-nut welding ukuqinisekisa ulawulo olufanelekileyo lokushisa ngexesha lenkqubo ye-welding. Ukuqonda ubushushu obuveliswayo kunye nokudluliselwa kubalulekile ekugcineni iimeko zokusebenza ezifanelekileyo, ukuthintela ukufudumeza, kunye nokuqinisekisa i-welds ezikumgangatho ophezulu. Eli nqaku libonelela ngohlalutyo lweefomyula zokubala ukushisa ezisetyenziswe kumatshini we-nut welding, ichaza ukubaluleka kwabo kunye nokusetyenziswa ekunqumeni iiparitha zokushisa.
- Ukuveliswa kobushushu: Ukuveliswa kobushushu kumatshini wokuwelda amantongomane kwenzeka ngokuyintloko ngenxa yokumelana nombane kwindawo ye-weld. Ubushushu obuveliswayo bunokubalwa ngokusebenzisa ifomula: Ubushushu (Q) = I^2 * R * t Apho:
- Q bubushushu obuveliswayo (kwiijoules okanye iiwatts)
- Ndingumsinga wokuwelda (kwi-amperes)
- R kukuxhathisa kombane kwindawo ye-weld (kwi-ohms)
- Lixesha lokuwelda (ngemizuzwana)
- Ukugqithiswa kobushushu: Ubushushu obuveliswa ngexesha le-welding kufuneka ilawulwe ukunqanda ukushisa. Ubalo lokutshintshwa kobushushu lunceda ukugqiba iimfuno zokutshatyalaliswa kobushushu. Ifomula yokudlulisa ubushushu ibandakanya ukuqwalaselwa kwemiba efana ne-convection, i-convection, kunye nemitha. Inokubonakaliswa ngolu hlobo: Q = Q_conduction + Q_convection + Q_radiation Apho:
- I-Q_conduction imele ubushushu obudluliselwe ngokudibana ngokuthe ngqo phakathi kwendawo yokusebenza kunye nee-electrode.
- I-akhawunti ye-Q_convection yokudluliselwa kobushushu ngomoya ojikelezayo okanye indawo yokupholisa.
- I-Q_radiation ibhekisa ekugqithiseni ubushushu ngemitha ye-electromagnetic.
- Iimfuno zokupholisa: Ukugcina amaqondo okushisa asebenzayo, izinga lokutshatyalaliswa kobushushu kufuneka lihambelane nesantya sokuvelisa ukushisa. Iimfuno zokupholisa zingabalwa kusetyenziswa ifomula: Q_dissipation = Q_generation Apho:
- I-Q_dissipation lizinga lokulahla ubushushu (kwiijoules ngesekhondi okanye iiwatts)
- I-Q_generation yizinga lokuvelisa ubushushu
Ngokubala ngokuchanekileyo ubushushu obuveliswayo kunye nokuqonda iindlela zokuhambisa ubushushu, abaqhubi banokuqinisekisa ulawulo olufanelekileyo lobushushu kumatshini we-welding nut. Oku kunceda ukuthintela ukufudumeza kwezixhobo, ukwandisa umgangatho we-weld, kunye nokuphucula ukusebenza kwe-welding jikelele.
Iifomula zokubala ubushushu zidlala indima ebalulekileyo ekumiseleni ukuveliswa kobushushu, ukuhanjiswa kobushushu, kunye neemfuno zokupholisa koomatshini bokuwelda amandongomane. Ngokubala ngokuchanekileyo kunye nokulawula ukushisa, abaqhubi banokuqinisekisa iimeko ezifanelekileyo zokusebenza, ukukhusela ukufudumala, kunye nokufezekisa i-welds ephezulu. Ukuqonda ezi fomyula kwenza abaqhubi benze izigqibo ezinolwazi malunga neeparamitha ze-welding, iinkqubo zokupholisa, kunye neendlela zokulahla ubushushu. Ekugqibeleni, ulawulo olufanelekileyo lobushushu lukhokelela ekuphuculeni ukusebenza kakuhle kwe-welding, ixesha elide lezixhobo zokusebenza, kunye nemveliso eyandisiweyo kwiinkqubo ze-nut welding.
Ixesha lokuposa: Jul-17-2023
