Na Thermal Equilibrium e nkoa e le Medium-Frequency Direct Current Spot Welding?

Lefatšeng la li-welding, ho na le lintlha tse ngata tse amehang ho netefatsa boleng le botšepehi ba sehlahisoa sa ho qetela. E 'ngoe ea lintlha tse joalo ke ho nahanela tekano ea mocheso ho tjheseletsa sebakeng sa maqhubu a mahareng. Sehloohong sena, re hlahloba bohlokoa ba ho lekanngoa ha mocheso ts'ebetsong ena ea welding le phello ea eona ho weld ea ho qetela.

Welding ea hona joale ea nako e mahareng, eo hangata e bitsoang MFDC spot welding, ke mokhoa o sebelisoang haholo liindastering tse fapaneng, ho kenyeletsoa likoloi, sefofane le tlhahiso. E kenyelletsa ho kopanya likotoana tse peli tsa tšepe ka ho sebelisa motlakase ka maqhubu a mahareng, hangata lipakeng tsa 1000 Hz le 10000 Hz, ka li-electroy alloy electrode. Motlakase o hlahisa mocheso, o qhibilihisang tšepe sebakeng sa ho cheselletsa, 'me ha ho pholile, ho thehoa weld e tiileng.

Taba e 'ngoe ea bohlokoa ts'ebetsong ena ke ho fumana tekano ea mocheso. Thermal equilibrium e bolela boemo boo mocheso oa mocheso ho workpiece o leka-lekaneng ka ho lahleheloa ke mocheso, ho fella ka mocheso o tsitsitseng le o laoloang ka har'a sebaka sa welding. Ho finyella tekano ea mocheso ho bohlokoa ka mabaka a 'maloa:

1. Ho lumellana le Boleng: Welding ka mocheso o tsitsitseng o tiisa li-welds tse tsitsitseng le tsa boleng bo phahameng. Lithempereichara tse sa tsitsang li ka baka likoli tse kang porosity, cracking, kapa ho se kenelle ho lekaneng.
2. Thepa e nepahetseng ea Weld: Lisebelisoa tse fapaneng li hloka mocheso o khethehileng oa welding ho fihlela thepa e lakatsehang ea mochini. Tekano ea mocheso e lumella hore ho be le taolo e nepahetseng ea ho kenya mocheso, ho etsa bonnete ba hore weld ea ho qetela e na le matla a hlokahalang le nako e telele.
3. Khopamiso e Nyenyane: Welding e ka baka ho sotheha mosebetsing ka lebaka la ho futhumatsa le ho pholile ho sa tšoaneng. Tekano ea mocheso e thusa ho fokotsa ho khopama, ho netefatsa hore sehlahisoa sa ho qetela se boloka sebopeho le boholo ba sona.
4. Matla a Matla: Ho cheselletsa mocheso ka mocheso o nepahetseng ho fokotsa tšebeliso ea matla le ho fokotsa litšila tsa thepa. Mekhoa e sa sebetseng ea li-welding e ka baka litšenyehelo tse eketsehileng tsa matla le tahlehelo ea thepa.

Ho fihlella tekano ea mocheso ho MFDC ho cheselletsa sebaka ho kenyelletsa taolo e hlokolosi ea liparamente tse fapaneng, ho kenyeletsoa hona joale, voltage, nako ea tjheseletsa, le matla a electrode. Hangata ho sebelisoa mekhoa ea ho hlahloba mocheso le mekhoa ea ho fana ka maikutlo ho boloka mocheso o tsitsitseng nakong eohle ea ho cheselletsa.

Moralo oa mochini oa welding le ona o bapala karolo ea bohlokoa ho fihlelleng tekano ea mocheso. Mekhoa e sebetsang hantle ea ho senya mocheso, ho pholile ka mokhoa o nepahetseng oa li-electrode, le taolo e nepahetseng ea litekanyo tsa welding hoa hlokahala ho netefatsa mocheso o tsitsitseng le o laoloang.

Qetellong, ho leka-lekana ha mocheso ke taba ea bohlokoa ho tjheseletsa sebakeng sa maqhubu a mahareng. E ama ka kotloloho boleng, botsitso, le katleho ea ts'ebetso ea welding. Baenjineri ba li-welding le li-operators ba tlameha ho beha leihlo le ho laola ka hloko liparamente tse fapaneng ho fihlela le ho boloka tekano ea mocheso, ho netefatsa hore weld ea ho qetela e kopana le litekanyetso le litlhaloso tse hlokahalang.