Lesi sihloko sikhuluma ngombuzo wokuthi ingabe umshini wokushisela we-medium frequency inverter spot womshini wokushisela uyaphuma yini i-pulsed direct current (DC). Ukuqonda uhlobo lokuphuma kukagesi kubalulekile ekuhloleni ukufaneleka komshini wokushisela wezinhlelo ezithile zokusebenza kanye nokwenza kahle inqubo yokushisela.
- Umgomo Wokusebenza: Umshini wokushisela indawo ye-frequency inverter ophakathi usebenza ngomgomo wokuguqula okokufaka okushintshayo kwamanje (AC) kube okuphumayo kwamanje (DC) okuqondile ngokusebenzisa isekethe ye-inverter. Isifunda se-inverter sihlanganisa izingxenye ezifana nezihlungi nezihlungi ezilawula ukuphuma kwe-waveform.
- I-Pulsed Operation: Ezimweni eziningi, imishini yokushisela i-medium frequency inverter spot yenzelwe ukuletha i-pulsed current ngesikhathi senqubo yokushisela. I-pulsed current isho i-waveform lapho okwamanje kushintshana ngezikhathi ezithile phakathi kwamazinga aphezulu naphansi, okudala umthelela oshaya ngamandla. Lesi senzo sokushaya singanikeza izinzuzo ezihlukahlukene, okuhlanganisa okokufaka okuncishisiwe kokushisa, ukulawula okuthuthukisiwe kwenqubo yokushisela, kanye nokuhlanekezela okuncishisiwe.
- I-Direct Current (DC) Ingxenye: Nakuba umshini wokushisela indawo ye-medium frequency inverter uletha ngokuyinhloko i-pulsed current, uqukethe nengxenye yamanje eqondile (DC). Ingxenye ye-DC iqinisekisa i-arc yokushisela ezinzile futhi inomthelela ekusebenzeni kokushisela okuphelele. Ukuba khona kwengxenye ye-DC kusiza ukugcina ukuzinza kwe-arc, kuthuthukisa impilo ende ye-electrode, futhi kusize ukungena kwe-weld okungaguquki.
- Ukulawula Okuphumayo: Umshini wokushisela we-medium frequency inverter spot welding uvumela ukulungisa imvamisa ye-pulse, ubude be-pulse, kanye ne-amplitude yamanje, ihlinzeka ngokulawula inqubo yokushisela. Le mingcele eguquguqukayo inika amandla opharetha ukuthi basebenzise izimo zokushisela ngokususelwa kumpahla, ukumiswa okuhlanganyelwe, nezici zokushisela ezifiselekayo.
Umshini wokushisela indawo ye-frequency inverter emaphakathi ngokuvamile ukhipha i-pulsed current nengxenye yamanje eqondile (DC). I-pulsed current inikeza izinzuzo mayelana nokulawula okokufaka ukushisa kanye nekhwalithi ye-weld, kuyilapho ingxenye ye-DC iqinisekisa izici ezizinzile ze-arc. Ngokunikeza ukuguquguquka ekulungiseni imingcele ye-pulse, umshini wokushisela uvumela opharetha ukuba bafinyelele ukulawula okunembile phezu kwenqubo yokushisela. Ukuqonda izici zokuphuma komshini kubalulekile ekukhetheni imingcele yokushisela efanele kanye nokukhulisa ikhwalithi yokushisela nokusebenza kahle.
Isikhathi sokuthumela: May-31-2023
