Wɔ welding a wɔyɛ ankasa mu no, nnwumakuw pii hu sɛ sɛ wɔn spot welding mfiri no yɛ ntama a wɔde galvanized ayɛ ho adwuma a, weld nsɛntitiriw no tra so wɔ soro layer no so nkutoo, na entumi nyɛ nuggets a emu dɔ a etu mpɔn. Eyi ma nkwaa ahoɔden nnɔɔso na ɛka nneɛma a wɔyɛ no yiyedi kɛse. Saa adeyɛ yi abu so titiriw wɔ kar a wɔyɛ ne ofie mfiri adwumayɛbea ahorow mu.
Ɛnam -nhwehwɛmu a emu dɔ so no, wɔahu sɛ nea ɛde ba no ntini gyina zinc layer no su soronko-ɔhyew a ɛnyɛ papa ne ɔhyew a ɛkɔ soro-a ɛmma ɔhyew ntumi nkɔ krataa no mu yiye no so. Nnɛyi medium-frequency tumi a wɔde di dwuma pɛpɛɛpɛspot welding mfiri ahorowde mfiridwuma mu ano aduru a wotumi de ho to so ma wɔ saa asɛnnennen yi ho.
Wɔ-Ɔhaw no ntini a ɛde ba no mu nhwehwɛmu a emu dɔ
Tetesɛmspot welding mfiri ahorowhyia nsɛnnennen pii bere a wɔreyɛ nneɛma a wɔde galvanized ayɛ ho adwuma no:
- Ɔhyew a ɛnyɛ papa a ɛwɔ zinc a ɛwɔ mu no ma ɔhyew akwanside ba, na esiw ɔhyew a ɛkɔ ade a wɔde gyina so no mu kwan.
- Zinc hyew a ɛma ɛyɛ hyew (bɛyɛ digrii 907 ) no sua sen dade a ɛyɛ hyew no, na ɛma ɛyɛ hyew ntɛm.
- Mprempren nsakrae no ma ɔhyew no nkyekyɛ nyɛ pɛpɛɛpɛ, na ɛma ɔhyew a ɛboro so wɔ soro na emu ntumi nkasa.
- Zinc a ɛyɛ hyew no gu electrode no ani, na ɛma ɔhyew a wɔde kɔ baabi foforo no sɛe bio.
Mfiridwuma mu Mfaso a Ɛwɔ Medium-Frequency Spot Welding Machines so
Nnɛyi medium-frequencyspot welding mfiri ahorowdi nsɛm a ɛfa surface welding ho dwuma denam mfiridwuma mu nkɔso a edidi so yi so:
- Dane tumi frequency anyinam ahoɔden kɔ medium-frequency DC ahoɔden wɔ 800–2000 Hz.
- Nya ahoɔden a ɛkɔ soro wɔ mprempren nneɛma a wɔde ba no mu, kwati ahoɔden a ɛsakrasakra a ɛtaa ba wɔ mfiri a wɔde di dwuma wɔ amanne kwan so mu.
- DC output yi honam ani nkɛntɛnso no fi hɔ, na ɛma ɔhyew du krataa bonding interface no ho tẽẽ.
- Millisecond-level precise control hwɛ hu sɛ ahoɔden no gyae wɔ bere a eye sen biara mu.
Ano aduru a Wɔayɛ no Nhyehyɛe
1. Optimization a ɛfa Welding Parameters ho
- Sɛ wode medium-frequency spot welding mfiri redi dwuma a, wɔkamfo parameter akwan a edidi so yi kyerɛ:
- Trɛw bere a ɛwɔ hɔ ansa na wɔahyɛ -nhyɛso no mu sɛnea ɛfata (kɔ soro 30–50%) na ama woahwɛ ahu sɛ wɔbɛpam zinc a ɛwɔ mu no koraa.
- Fa "mprempren a ɛba fam + kyinhyia tenten" welding mode.
- Set multi-stage heating programs na ama welding ahoɔden akɔ soro nkakrankakra.
- Fa fine-tuning dwumadie a ɛwɔ medium-frequency spot welding mfiri mu no di dwuma de yɛ parameters yie.
2. Ɛlektrode Nhyɛso a Wɔhwɛ So Pɛpɛɛpɛ
- Ma electrode nhyɛsoɔ nkɔ soro 20–30% na ama ayɛ mmerɛw sɛ wɔbɛpam zinc a ayɛ nsuo no.
- Kura nhyɛso a ɛyɛ pintinn wɔ welding nhyehyɛe no nyinaa mu.
- Fa nhyɛsoɔ sohwɛ nhyehyɛeɛ a nyansa wom a ɛwɔ medium-frequency spot welding mfiri mu no di dwuma.
- Hwɛ sɛ dade-ne-dade di nkitaho tẽẽ na ama ɔhyew a ɛko tia no so atew.
3. Electrode a Wɔpaw ne Nsusuwii
- Paw electrode ahorow a n’ano yɛ teateaa anaa kurukuruwa na ama ɔhyew a ɛwɔ soro no apete.
- Kamfo oxide-dispersion-ahyɛɛ den kɔbere electrode nneɛma ma high-ɔhyew a ɛko tia ne anti-adhesion su.
- Ɛsɛ sɛ electrode diameter yɛ krataa no kɛse mmɔho 5–6 na ama mprempren density akɔ soro.
- Daa siesie electrode ahorow na ama woakura adwumayɛ tebea a eye sen biara mu.
4. Ɔkwan a Wɔfa so Yɛ Nneɛma a Wɔde Di Dwuma Wɔ Anim
- Tew ngo a ɛwɔ soro no ho nkekae ne oxides ho yiye.
- Yɛ grinding pa wɔ welding beae no bere a ɛho hia.
- Kura soro roughness a ɛfata mu na ama mprempren conduction akɔ so.
- Kwati sɛ wobɛyam dodo a ebetumi asɛe anti-corrosion coating no.
Nea efi mu ba a wɔde di dwuma ne nea ɛfa nneɛma pa ho
Bere a wɔagye medium-frequency spot welding mfiri a wɔaka abom ne akwan a wɔayɛ no yiye atom akyi:
- Welding qualification rate kɔ soro kodu bɛboro 98%.
- Nugget bun du 70–80% wɔ krataa no mu duru mu.
- Nkwaa ahoɔden du gyinapɛn a ɛkorɔn sen biara ho.
- Electrode dwumadie nkwa nna trɛw bɛboro 50%.
- Wɔtew nneɛma a wɔyɛ ho ka so kɛse.
Awie
Nea ɛho hia wɔ galvanized krataa ani welding nsɛm no da pɛpɛɛpɛyɛ a ɛnnɔɔso wɔ ɔhyew sohwɛ mu. Mfinimfini-frequencyspot welding mfiri ahorow, a wɔn mprempren ahoɔden a ɛyɛ den, parameter nsakrae a ɛyɛ pɛpɛɛpɛ, ne ahoɔden a wɔde di dwuma yiye no ma nnwuma mu asɛnnennen yi ano aduru a edi mũ.
Ɛdenam medium-frequency spot welding mfiri mfiri a ɛfata a wɔpaw na wɔde ka ho ne nyansahu mu welding nhyehyɛe parameters so no, ɛnyɛ sɛ nnwumakuw a wɔyɛ nneɛma no betumi asiesie surface welding ho nsɛm koraa nko na mmom wobetumi ama nneɛma no yiyedi ne nneɛma a wɔyɛ no yiye nso atu mpɔn kɛse, na wɔanya mfiridwuma mu mfaso a ɛda nsow wɔ akansi gua so.
