Spot welding galaw ai shaloi, electrode tip gaw welding n-gun yawng hpe jaw ya ai ahkyak ai daw rai nga ai. Aten na wa ai shaloi, nbung katsi ai, n-gun kaba ai, arai ni hpe htawt sit ai majaw, electrode tip gaw n kaja mat ai, shinggrup mat ai (sh) awu asin byin mat ai. Dai ni na aten na hpaga lam hta-grau nna .spot welding jak-electrode a masa gaw grau ahkyak wa ai.
Regular electrode dressing gaw, weld quality hpe ngang grin hkra galaw lu na matu hte galaw shapraw ai manu hpe shayawm lu na matu, asan sha rai tim, akyu rawng dik htum ladat langai rai nga ai.
Electrode lang ai a akyu ni
Electrode tip gaw n kaja mat ai, hkrang n kaja mat ai, n bung mat ai shaloi, manghkang law law pru wa ai:
- Ya aten hta n bung ai garan gachyan ai lam
- Spatter law wa ai hte ntsa wan hkru ai
- Gawng kya ai (sh) n htap htuk ai weld nuggets ni
- Electrode hpe lawan ai hku jahten kau ai
- Hpaga galaw ai manu grau law nna, shawng na-pass yield yawm ai
MFDC spot welding ladat hpe lang ai jak rung law law hta, electrode hpe n gram lajang ai sha, n grin ai weld quality byin shangun chye ai. Nkau galaw shapraw ai ni gaw, electrode dressing hpe n hkan sa ai sha, 20% hkrat sum mat ai hpe tsun dan ma ai.
Hpa majaw ayan bu hpun sumli ra ai madung lam masum
N-gun n rawng ai hka lwi na matu npu n-gun n rawng ai hpe makawp maga u
Electrode tip hpe n-gun yawm mat ai (sh) n-gun n rawng ai majaw, shara shagu hta wan n-gun n bung ai. Ndai lam gaw, tsaw ai shara ni hta current hpe shinggyin la lu ai majaw, grai katsi mat ai, hka lim mat ai (sh) n hkum tsup ai nugget byin pru wa ai.
Dai majaw, n-gun n rawng ai, n-gun rawng ai n-gun rawng ai shara hpe bai gram lajang ya nna, n-gun rawng ai n-gun rawng ai hte weld quality hpe n-gun rawng ai hku galaw ya ai.
Electrode a prat hpe jat ya nna galai shai ai aten hpe shayawm ya ai
Routine dressing galaw ai gaw, hkra machyi ai ntsa na n-gup magap hpe sha yeng seng kau ya nna, grai n-gun n rawng hkra pat shingdang ya ai.
Hpaga lam hte seng ai jahpan ni hta, atsawm sha gram lajang ai rai yang, MFDC spot welders lang ai galaw shapraw ai ni gaw, 2019 ning du hkra electrode a asak hpe galu shangun lu ai.30% du hkra, n bungli n galaw ai aten hte galai na matu manu jahpu hpe shayawm ya ai.
Weld Nugget a hkamja lam hpe grau kaja hkra galaw nna, hka lim ai hpe shayawm kau na
Tengman ai hku bu hpun da ai electrode gaw, ngang grin ai matut mahkai n-gun hte n-gun n-gun hpe jaw ya ai.
Ndai gaw:
- Weld ntsa hpe san seng hkra galaw u
- Uniform weld nlung ni
- Kaji dik htum hka lim ai
- Grau tsaw ai arung arai n bung ai lam
MFDC welder ni gaw hkrak tup hkang lu ai atsam nga ai raitim, electrode hpe kaja dik ai masa hta tawn da ai shaloi she shanhte a bungli hkum tsup hkra galaw lu ai atsam nga ai.
Electrode hpe hpun na matu kaja dik ai ladat ni
Hpaji jaw ai ladat ni
- Tengman dik ai hte bung ai mahtai ni a matu hpaji rawng ai electrode hpun palawng ni hpe lang u
- Hkyak hkyak lata hte galaw na matu, n-gun ja ai nhprang laika (400–600 grit) hpe lang mai ai.
- Hpun palawng hpun ngut ai hpang, ntsa na oxide ni, hka htung ni hte n-gun rawng ai arung arai ni hpe shaw kau u
Hpaji jaw da ai Electrode Tip shadawn shadang ni
Hpun palawng hpun ngut ai hpang, electrode a myi man diameter gaw, shinggrup da ai arai a galu kaba ai htam 3-5 daram rai ra ai.
Ndai ratio hpe ngang grin ai, madang tsaw ai-weld ni hpe lu la na matu ahkyak ai parameter langai hku nna masha law law chye na da ai.
MFDC Spot Welding lang ai ni a matu tatut galaw mai ai lam matsun ni
- Electrode hpe ayan bu hpun ai aten ladaw hpe gawgap u
- 50-100 lang shagu electrode a masa hpe jep yu u
- Hpun palawng hpun ai aten, electrode a asak galu ai lam, weld a hkamja lam galai shai ai lam ni hpe ka matsing da u
- Tengman ai hku bu hpun sumli ai ladat ni hpe operator ni hpe sharin ya u
- Hpun palawng hpun ngut ai hpang weld nugget a kaba ai, hka lim ai madang, hte weld n-gun hpe yu yu u
MFDCSpot Welding jakn-gun ja ai hte hkrak ai hku galaw lu na matu galaw da ai. Electrode hpe atsawm sha gram lajang ai gaw, jak hpe grau kaja hkra galaw lu shangun ai.
Hpaga lam-madung tawn ai jahpan hte bungli galaw ai lam hta akyu lu la ai lam
Lahta na bungli galaw ai lam hta rawt jat wa ai lam ni hpe, jakrung ni gaw, n galai shai ai electrode-dressing ladat hpe jai lang ai shaloi, law malawng tsun shapraw ma ai:
| Magam bungli hpe madun ai | Laksan hku nna gram lajang ai lam |
| Electrode a asak | ↑ 30% |
| Arung arai awng dang ai jahpan | ↑ 15%–25% |
| Spatter hpe shayawm ai | ↓ 40%–60% |
| Weld n-gun shai hkat ai | ↓ 20%–30% |
| Scrap & bai galaw ai manu | ↓ 10%–20% |
Tengman ai mahtai gaw, galaw shapraw ai n-gun, arung arai ni, electrode amyu ni hta madung nga ai, raitim, akyu ni hpe welding galaw ai bungli ting hta grai law hkra hkam la lu ai.
Kaja dik htum gram lajang ai ladat ni
- Hpaga galaw ai n-gun hte arung arai amyu hpe madung tawn nna bu hpun ai electrode ni
- Spot welding electrode ni a matu galaw da ai hkrak hkrak re ai hpun palawng ni hpe lang u
- Hpun palawng bu hpun ngut ai hpang, symmetry, flatness, hte ntsa lam a masa hpe jep yu u
- Electrode a prat hpe hkan tam nna, bu hpun sumli ai aten hpe kaja ai jahpan hte matut mahkai u
- Electrode masa hte htap htuk hkra welding masat masa ni hpe ayan bai maram yu u
Daw dan lam
Regular electrode dressing gaw asan sha rai nna manu jahpu-htuk manu ai hku gram lajang ai ladat rai nna, weld a hkam kaja lam, galaw sa wa ai lam hpe grai ngang grin hkra galaw ya lu ai, galaw shapraw ai lam hpe grai kaja hkra galaw ya lu ai. MFDC lang ai galaw shapraw ai ni a matuspot welding jak, electrode hpe kaja dik ai masa hta tawn da ai gaw, jak a high-htuk manu ai hkang zing ai lam hte n-gun atsam hpe jai lang lu ai atsam hpe tup hkrak jai lang lu na matu ahkyak nga ai.
Hpun palawng hpun ai aten ladaw hpe hkan sa nna, quality data hpe yu reng ai hku nna, jakrung ni gaw electrode a prat hpe grai galu kaba shangun lu ai, hka lim ai hpe shayawm lu ai, nugget byin pru wa ai hpe ngang grin shangun lu ai, aten galu-sut masa manu hpe grau tsaw hkra lu la lu ai.
