Gịnị bụ kpọmkwem ugbu njikọ, ihe bụ kpọmkwem ugbu a azụ njikọ, na otú ịhọrọ mgbe ịgbado ọkụ

1. Njikọ mbugharị DC (ya bụ usoro njikọ mbugharị):

Usoro njikọ na-aga n'ihu na-ezo aka na usoro wiring eji atụ ihe nhụsianya dielectric na ule sekit Xilin. Ihe nhụsianya dielectric tụrụ site na ụzọ njikọ na-aga n'ihu dị ntakịrị, na ihe ọnwụ dielectric tụrụ site na ụzọ njikọ azụ dị ukwuu. E jiri ya tụnyere usoro njikọ azụ, usoro njikọ na-aga n'ihu nwere ike ibelata mmetụta nke mgbochi elu antihalo oyi akwa na uru ule ọnwụ dielectric.

2. Njikọ azụ DC (ya bụ usoro njikọ azụ):

Na-ezo aka na usoro njikọ sekit n'oge ịgbado ọkụ. Na tungsten arc welding, DC reverse njikọ nwere mmetụta nke iwepu oxide film, nke a na-akpọ "cathode fragmentation" ma ọ bụ "cathode atomization".

Mmetụta nke iwepụ ihe nkiri oxide dịkwa na ntụgharị polarity ọkara nke ịgbado ọkụ AC. Ọ bụ ihe dị mkpa na ịgbado ọkụ nke ọma aluminum, magnesium na ha alloys.

3. Mgbe ịgbado ọkụ, mkpa ka ị kpọmkwem họrọ DC n'ihu njikọ ma ọ bụ DC agbara njikọ dị ka mkpa nke ịgbado ọkụ ihe.

Omume egosila na mgbe DC na-ejikọta ya ọzọ, enwere ike iwepụ ihe nkiri oxide n'elu nke workpiece n'okpuru ọrụ nke arc iji nweta weld na-egbuke egbuke, mara mma na nke ọma. Ọ bụrụ na enwere ike ikewapụ mkpanaka waya site na ala, nyocha nke saịtị kwesịrị iji usoro njikọ dị mma dị ka o kwere mee.

Ngwá ọrụ ịgbado ọkụ Xinfa nwere njirimara dị elu na ọnụ ala dị ala. Maka nkọwa, biko gaa na:Ndị na-emepụta ịgbado ọkụ na ịkpụ - China Welding & Cutting Factory & Suppliers (xinfatools.com)

Ozi agbatịkwuru

Ụkpụrụ nke njikọ azụ DC:
Mgbe DC na-atụgharị, ihe nkiri oxide n'elu nke workpiece nwere ike wepụ n'okpuru omume nke arc iji nweta weld na-egbuke egbuke, mara mma na nke ọma.

Nke a bụ n'ihi na ígwè oxides nwere obere ọrụ na-arụ ọrụ ma na-ebupụ electrons ngwa ngwa, ya mere ntụpọ cathode dị mfe ịmepụta na fim oxide ma mepụta arcs. The cathode tụrụ nwere ihe onwunwe nke na-akpaghị aka na-achọ metal oxides.

Ngwunye ike nke ntụpọ cathode dị oke elu, ọ na-akụkwa ya site na ion dị mma na nnukwu uka, nke na-agbaji ihe nkiri oxide.

Otú ọ dị, mmetụta okpomọkụ nke DC reverse njikọ na-emebi ịgbado ọkụ, n'ihi na anode nke tungsten argon arc ịgbado ọkụ na-ekpo ọkụ karịa cathode. Mgbe a na-atụgharị polarity ahụ, electrons na-atụba tungsten electrode ma hapụ nnukwu okpomọkụ, nke nwere ike ime ka ọ dịkwuo ọkụ ma gbazee tungsten electrode. N'oge a, ọ bụrụ na a ga-agafe ugbu a ịgbado ọkụ nke 125A, mkpara tungsten nke nwere dayameta nke ihe dịka 6mm iji gbochie tungsten electrode ịgbaze.

N'otu oge ahụ, n'ihi na enweghi ike dị ukwuu a na-ewepụta na weldment, omimi ntinye weld na-emighị emi na mbara, arụpụtaghị ihe dị ala, na naanị ihe dị ka 3mm nnukwu efere aluminum nwere ike welded. Ya mere, DC reverse njikọ na-adịkarịghị eji tungsten arc ịgbado ọkụ ma e wezụga maka ịgbado ọkụ aluminum na magnesium mkpa efere.