Gas Metal Arc Welding (GMAW): "Nhọrọ ahọrọ" maka ịgbado ọkụ dị elu
Gas Metal Arc Welding (GMAW): "Nhọrọ ahọrọ" maka ịgbado ọkụ dị elu
Gas metal arc welding (GMAW) na-eji gas inert ma ọ bụ gas na-arụ ọrụ dị ka ihe nchebe iji kewapụ mmetụta ikuku na ọdọ mmiri a wụrụ awụ. Ọ na-egosipụta ogo ịgbado ọkụ dị elu yana nhazi weld mara mma. E kewara ya n'ụdị isi abụọ: tungsten inert gas welding (TIG) na CO₂ gas na-echebe ịgbado ọkụ (MIG / MAG), nke dabara maka ihe dị iche iche na ọnọdụ dị iche iche, n'otu n'otu.
1. Tungsten Inert Gas Welding (TIG Welding): The "Ọkachamara" na nkenke ịgbado ọkụ.
TIG ịgbado ọkụ na-eji argon gas (dị ọcha ≥99.99%) dị ka gas na-echebe. Ọ na-ekpo ọkụ na workpiece site na arc n'etiti tungsten electrode na workpiece, na ike rụrụ na ma ọ bụ na-enweghị filler waya (autogenous ịgbado ọkụ). Ọ dabara maka ịgbado ọkụ nkenke nke ngwa oxidized dị ka igwe anaghị agba nchara, aluminom alloys na titanium alloys, dị ka ihe ikuku ikuku, arịa nrụgide, na akụrụngwa ahụike.
Isi ihe eji arụ ọrụ:
Nhọrọ Tungsten Electrode: Jiri ceriated tungsten electrodes maka ịgbado ọkụ igwe anaghị agba nchara na tungsten electrodes dị ọcha maka ịgbado ọkụ aluminum alloys. Gbanwee dayameta tungsten electrode dị ka nke dị ugbu a (dịka, 2.4mm tungsten electrode maka 100-150A ugbu a). Jikwaa ogologo ndọtị nke tungsten electrode na 2-5mm iji zere kọntaktị na waya na-ejuputa, nke nwere ike ime ka ọkụ na-ekpo ọkụ tungsten.
Gas Control: Gbanwee na argon eruba dị ka workpiece ọkpụrụkpụ: 8-10L / min maka mkpa efere (≤3mm) na 12-15L / min maka oké efere (> 5mm). Gbatịkwuo oge nchebe argon site na 3-5 sekọnd mgbe ị na-akwụsị arc iji gbochie oke ikuku oxidation nke weld.
5mm). Gbatịkwuo oge nchebe argon site na 3-5 sekọnd mgbe ị na-akwụsị arc iji gbochie oke ikuku oxidation nke weld.
Usoro Waya Filler: Tinye waya na-ejuputa site n'ihu ọdọ mmiri a wụrụ awụ, na-ezere kọntaktị kpọmkwem na arc. Jikwaa ọsọ ịgbado ọkụ na 5-10cm / min iji hụ na ngwakọta zuru oke nke ọdọ mmiri a wụrụ awụ wee zere enweghị ntụpọ ngwakọta.
2. CO₂ Gas Shielded Welding (MIG/MAG Welding): "Ọkachamara dị elu" maka mmepụta Mass
CO₂ gas kpuchiri ịgbado ọkụ na-eji CO₂ ma ọ bụ gas agwakọta nke CO₂ na argon dị ka ihe nchebe, yana nri waya akpaka. Ọ nwere arụmọrụ ịgbado ọkụ dị elu (ugboro 2-3 nke SMAW) yana ọnụ ala dị ala, na-eme ka ọ dabara maka mmepụta oke nke obere carbon carbon na nchara dị ala, dị ka ozu ụgbọ ala, mkpuchi ngwa ụlọ, na imepụta akpa.
Isi ihe eji arụ ọrụ:
Parameter Matching: Kpọmkwem dakọtara ugbu a na voltaji (dịka, 22-24V maka 150A ugbu a). Jikwaa ogologo ndọtị waya na 10-15mm (ihe dịka 5-10 ugboro dayameta waya); ogologo ogologo nke ukwuu nwere ike ime ka mkpọsa dị oke, ebe nke dị mkpụmkpụ gabigara ókè nwere ike gbaa nozulu ọkụ.
Akụkụ ịgbado ọkụ: Nabata usoro ịgbado ọkụ n'aka ekpe (na-ebugharị ọkụ ịgbado ọkụ site n'aka nri gaa n'aka ekpe). Jikwaa akụkụ nke 15-25º n'etiti ọkụ ịgbado ọkụ na workpiece iji hụ na mkpuchi zuru oke nke ọdọ mmiri a wụrụ awụ site na gas. Jiri ọta ikuku mgbe ọsọ ifufe gafere 2m/s iji gbochie ikuku na-echebe ikuku, nke nwere ike ibute porosity.
