Hom kev welding:
1. Electrode arc vuam:
Lub hauv paus ntsiab lus: arc vuam txoj kev ntawm vuam nrog ib phau ntawv vuam pas nrig. Qhov ruaj khov combustion arc tsim nruab nrab ntawm lub vuam pas nrig thiab qhov welded yog siv los yaj lub vuam pas nrig thiab qhov welded ib feem kom tau txais kev sib koom ua ke ruaj khov. Nws belongs rau kev tiv thaiv ntawm cov roj slag pob qij txha.
Kev ua haujlwm yooj yim ntawm cov yam ntxwv tseem ceeb; tsawg sib dhos yuav tsum tau welded; ntau yam ntawm weldable hlau cov ntaub ntawv; tsawg vuam tsim tau; muaj zog dependence ntawm weld zoo (nyob ntawm tus welder kev ua hauj lwm kev txawj ntse thiab kev ua tau zoo ntawm qhov chaw).
Daim ntawv thov dav siv nyob rau hauv shipbuilding, boilers thiab siab hlab ntsha, machinery manufacturing, lub tsev, cov khoom siv tshuaj thiab lwm yam manufacturing thiab txij nkawm industries. Haum rau vuam ntau yam ntaub ntawv hlau, ntau yam thicknesses, thiab ntau yam qauv duab (nyob rau hauv cov kev lag luam aforementioned).
2. Submerged arc vuam (tsis siv neeg vuam):
Txoj cai- Lub arc hlawv hauv qab txheej ntws. Thaum tshav kub kub generated los ntawm lub arc hlawv ntawm lub vuam hlau thiab cov welded ib feem yog siv los yaj lub vuam hlau, flux thiab lub hauv paus hlau (solder) los ua ib tug weld. Nws yog tiv thaiv slag.
Cov yam ntxwv tseem ceeb- vuam tsim tau zoo; zoo vuam zoo; welding nqi tsawg; ua haujlwm zoo; nyuaj rau vuam hauv qhov chaw; cov kev cai zoo rau kev sib dhos ntawm welded qhov chaw; Nws tsis haum rau vuam nyias daim hlau (thaum lub vuam tam sim no tsawg dua 100A, tsis zoo arc stability) thiab luv welds.
Daim ntawv thov dav siv hauv nkoj tsim, boilers, txuas hniav, nqa machinery thiab metallurgical machinery manufacturing. Submerged arc vuam siv tau rau txhua qhov chaw welded uas nws cov welds tuaj yeem khaws cia rau hauv txoj hauj lwm kab rov tav lossis nws lub kaum sab xis ntawm inclination tsis loj. Lub thickness ntawm lub phaj yuav tsum siab tshaj 5 hli (kom tsis txhob hlawv). Welding carbon structural steel, low alloy structural steel, stainless hlau, kub-resistant steel, composite steel, thiab lwm yam.
3. Cov pa roj carbon dioxide shielded vuam (tsis siv neeg lossis semi-automatic vuam):
Lub hauv paus ntsiab lus: molten electrode arc vuam txoj kev uas siv cov pa roj carbon dioxide los tiv thaiv roj. Nws yog kev tiv thaiv roj. Cov yam ntxwv tseem ceeb- vuam tsim tau zoo; welding nqi tsawg; me me vuam distortion (arc cua sov concentration); siab vuam zoo; kev ua haujlwm yooj yim; siab txaws tus nqi; nyuaj rau solder ntawm AC zog; cua tsis zoo; Nws tsis tuaj yeem welded rusty xim hlau yooj yim.
4. MIG/MAG welding (Shielded inert gas/active gas welding):
MIG welding txoj cai: Ib txoj kev vuam arc uas siv cov roj inert ua cov roj thaiv thiab vuam hlau ua fusion electrode. Lub shielding gas feem ntau yog argon los yog helium los yog lawv cov sib tov. MIG siv cov roj inert, MAG ntxiv me me ntawm cov pa nquag, xws li oxygen, carbon dioxide, thiab lwm yam rau cov roj inert.
