Ɔkwan bɛn so na wɔyɛ nsakrae wɔ medium frequency spot welding afiri no mu na ama wɔanya nkɛntɛnso a ɛfata kɛse?

Fine-Tuning WoMFDC Spot Welder a ɛwɔ hɔ: Nhyehyɛe a Wɔde Yɛ Ntɛmntɛm

Nya welds a ɛkɔ so daa nemedium-frequency tẽẽ mprempren (MFDC) spot weldershwehwɛ sɛ wɔkari pɛ wɔ nhyehyɛe atitiriw abiɛsa mu:mprempren, bere, ne nhyɛso. Sɛnea wobɛfrɛ wɔn wɔ mu ni:

1. Mprempren Nsakrae: Di Ɔhyew no So

Fi ase wɔ fam: Sɛ wopɛ 0.8mm dade a ɛyɛ mmerɛw a, fi ase wɔ 200-300A.

Test & nkɔanim: Ma current so wɔ 10% anammɔn mu kosi sɛ wubehu:
✅ Nugget penetration a edi mũ (nkwaa a ɛyɛ mmerɛw biara nni hɔ) .
❌ Ɛnpetepete anaasɛ ɛhyew-fa mu (ɛkyerɛ mprempren a ɛboro so) .
Aluminium tip: Fa 30-50% current a ɛba fam sen dade esiane conductivity a ɛkorɔn nti.

2. Welding Bere: Hwɛ Ɔhyew Bere tenten so

Steel: Bere tiaa + mprempren a ɛkorɔn (sɛ nhwɛso no, 3-6 sec @ 320A ma M6 nuts)

Aluminium/Kɔbere: Bere tenten + mprempren a ɛba fam
Kɔkɔbɔ:=electrode a ɛbata ho tenten dodo; Tiawa dodo=fusion a enni mũ.

3. Electrode Pressure: Hwɛ hu sɛ Wo ne no di nkitaho

Nkratafa a ɛyɛ tratraa ( .<1mm): 0.3-0.5 MPa

Thick plates (>3mm): 0.8-1.2 MPa na ɛwɔ hɔ
Critical ratio: Ma nhyɛsoɔ nkɔ soro 5% ma 10% biara a ɛwɔ hɔ mprempren.
Galvanized steel fix: Fa Greater than anaa equal to 0.6MPa pressure di dwuma na amma zinc a ɛbɛpetepete.

4. Electrode a Wɔhwɛ So: Nea ɛkɔ so pɛpɛɛpɛ ne Ade titiriw

Sharpen tips: Fa sandpaper pa yam weld 50-100 biara.

Onwini yiye: Hwɛ nsuo a ɛsen dapɛn biara – electrodes a ɛyɛ mmerɛw ma drift.

Anti-stick: Fa graphite paste gu so bere a woreyɛ welding aluminium.

Pro Afotu a Ɛfa Nhyehyɛe Ho

• Sɔ hwɛ mmiako mmiako: Yɛ nsakrae wɔ parameter biako mu bere koro mu.
• Fa nsɛm a ɛkɔ so daa no tom: Sua nugget diameter – nsonsonoe<0.2mm.
• Fa profile ahorow sie: Fa nhyehyɛe a eye sen biara sie ma nneɛma ahorow.

Nea efii mu bae ankasa: Adwumayɛbea bi maa electrode nkwa nna trɛw fii nnɔnhwerew 500 koduu 1200 denam tip dressing a wɔyɛ no daa ne cooling optimization so.

Ɔhaw a Wosiesie Ntɛmntɛm Nhwehwɛmu