Resistance Heating ka Mechini e Medium Frequency Inverter Spot Welding le Lintho Tse E susumetsang?

Resistance heats ke ts'ebetso ea mantlha mecheng ea welding ea maqhubu a mahareng a maqhubu a motlakase, moo khanyetso ea motlakase ea li-workpieces e hlahisang mocheso nakong ea ts'ebetso ea welding. Sehlooho sena se ikemiseditse ho hlahloba mochine oa ho hanyetsa mocheso le ho buisana ka lintlha tse sa tšoaneng tse susumetsang katleho ea eona le phello ea ts'ebetso ea welding.

1. Resistance Heating Mechanism: Mechineng ea welding ea maqhubu a mahareng a maqhubu a motlakase, ho feta ha motlakase o phahameng ka lisebelisoa tsa mosebetsi ho baka khanyetso sebopehong se kopaneng. Khanyetso ena e fetola matla a motlakase hore e be mocheso, e leng se etsang hore ho be le ho futhumatsa sebakeng seo sebakeng sa welding. Mocheso o hlahisoang ke ho futhumatsa ho hanyetsa o phetha karolo ea bohlokoa ho finyella fusion e nepahetseng le ho etsa nugget e matla ea weld.
2. Lintlha tse Amang Resistance Heating: Lintlha tse 'maloa li susumetsa katleho ea ho futhumatsa mocheso ka har'a mochini oa welding oa maqhubu a mahareng. Lintlha tsena li kenyeletsa: a. Motlakase Conductivity: Motlakase oa motlakase oa lisebelisoa tsa mosebetsi o ama ho hanyetsa, ka lebaka leo, boholo ba mocheso o hlahisoang. Lisebelisoa tse nang le motlakase o phahameng li na le khanyetso e fokolang 'me li atisa ho hlahisa mocheso o fokolang ha o bapisoa le thepa e nang le conductivity e tlaase. b. Botenya ba Boitsebiso: Lisebelisoa tse teteaneng tsa mosebetsi li bonts'a khanyetso e phahameng ka lebaka la tsela e telele ea hajoale, e bakang ho eketseha ha mocheso nakong ea welding. c. Resistance Resistance: Boleng ba ho kopana ha motlakase pakeng tsa li-electrode le li-workpieces li ama haholo ho futhumatsa ho hanyetsa. Khokahano e mpe e lebisa ho khanyetso e phahameng ho sehokelo sa electrode-workpiece, e bakang ho fokotseha ha phetiso ea mocheso le ho ama boleng ba weld. d. Welding Current: Boholo ba hona joale oa welding bo ama mocheso o hlahisoang ke mocheso o hanyetsanang. Maqhubu a phahameng a hlahisa mocheso o mongata, athe maqhubu a tlase a ka baka ho se be le mocheso o lekaneng le sebopeho se sa lekaneng sa weld. e. Nako ea Welding: Nako ea ts'ebetso ea welding e boetse e ama ho futhumatsa ho hanyetsa. Linako tse telele tsa tjheseletsa li lumella mocheso o mongata hore o hlahisoe, e leng se lebisang ho kopantseng hantle le litšepe tse matla. Leha ho le joalo, linako tse telele tsa ho cheselletsa nako e telele li ka baka mocheso o feteletseng le tšenyo e ka bang teng ho li-workpieces. f. Matla a Electrode: Matla a sebelisitsoeng lipakeng tsa li-electrode a ama khokahano ea motlakase, ka mor'a moo, ho futhumatsa ho hanyetsa. Matla a lekaneng a li-electrode a tiisa ho kopana ho nepahetseng le ho fetisa mocheso o sebetsang hantle, ho kenya letsoho ho ntlafatsa boleng ba weld.
3. Tšusumetso ea ho futhumatsa ho hanyetsang: Ho futhumatsa ho hanyetsa ho na le phello e tobileng ts'ebetsong ea welding le boleng bo hlahisoang ke weld. Liphello tsa bohlokoa li kenyelletsa: a. Moloko oa Mocheso: Ho futhumatsa ho hanyetsa ho fana ka matla a hlokahalang a mocheso ho qhibilihisa lisebelisoa tsa mosebetsi, ho tsamaisa fusion le ho thehoa ha nugget ea weld. b. Material Softening: Mofuthu oa sebakeng sa heno o tsoang ho futhumatsang o hanyetsang o nolofatsa lisebelisoa tsa mosebetsi, o lumella ho fetoha ha polasetiki le ho khothaletsa ho kopanya ha interatomic sehokelong se kopaneng. c. Sebaka se Amang Mocheso (HAZ): Mocheso o hlahisoang nakong ea mocheso oa ho hanyetsa o boetse o ama thepa e potolohileng, e lebisang ho thehoeng ha sebaka se amehileng ke mocheso (HAZ) se khetholloang ke microstructure e fetotsoeng le thepa ea mechine. d. Ho kenella ka Weld: Palo ea mocheso o hlahisoang ke mocheso o hanyetsanang o susumetsa botebo ba ho kenella ha weld. Taolo e nepahetseng ea ho kenya mocheso e tiisa ho kenella ka ho lekaneng ntle le ho qhibiliha ho feteletseng kapa ho chesa.

Qetello: Resistance heath ke ts'ebetso ea mantlha mochining oa welding oa frequency inverter spot welding, o bapalang karolo ea bohlokoa ho fihlella fusion e nepahetseng le ho theha li-welds tse matla. Ho utloisisa mochine oa ho futhumatsa ho hanyetsa le ho nahana ka lintlha tse susumetsang, tse kang conductivity ea motlakase, thepa e teteaneng, ho hanyetsa, ho tjheseletsa hona joale, nako ea ho tjheseletsa, le matla a electrode, ho etsa hore ho be le taolo e sebetsang ea ts'ebetso ea tjheseletsa le ho netefatsa boleng bo lakatsehang le tshebetso. Ka ho ntlafatsa ho futhumatsa ho hanyetsang, bahlahisi ba ka ntlafatsa ts'ebetso, ts'epahalo le botsitso ba ts'ebetso ea li-welding lits'ebetsong tse fapaneng tsa indasteri.