進(jìn)口焊機(jī)故障,幫忙分析一下

林肯V350-PRO機(jī)
故障情況:
顯示正常,燒三根焊條電壓顯示33V-70V不穩(wěn)定,NO紅燈不停閃爍;停焊20分鐘后又可以焊2-3跟焊條

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guofulin

LV.3

2009-11-17 22:27

可控硅有一個(gè)發(fā)熱短路了,剛開(kāi)機(jī)的時(shí)候空載是正常了,但焊了兩三跟焊條后空載會(huì)下降,

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老焊工zx5

LV.2

2009-11-23 10:26

@guofulin

可控硅有一個(gè)發(fā)熱短路了,剛開(kāi)機(jī)的時(shí)候空載是正常了,但焊了兩三跟焊條后空載會(huì)下降,

500) {this.resized=true; this.width=500; this.alt='這是一張縮略圖，點(diǎn)擊可放大。\n按住CTRL，滾動(dòng)鼠標(biāo)滾輪可自由縮放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/83/1470091258943164.jpg');}" onmousewheel="return imgzoom(this);">

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老焊工zx5

LV.2

2009-11-23 10:32

@老焊工zx5

[圖片]500){this.resized=true;this.width=500;this.alt='這是一張縮略圖，點(diǎn)擊可放大。\n按住CTRL，滾動(dòng)鼠標(biāo)滾輪可自由縮放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/83/1470091258943164.jpg');}"onmousewheel="returnimgzoom(this);">[圖片]500){this.resized=true;this.width=500;this.alt='這是一張縮略圖，點(diǎn)擊可放大。\n按住CTRL，滾動(dòng)鼠標(biāo)滾輪可自由縮放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/83/1470091258943197.jpg');}"onmousewheel="returnimgzoom(this);">

真搞不清楚是開(kāi)關(guān)板壞還是控制板壞還是其它什么原因

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老焊工zx5

LV.2

2009-11-23 10:46

@老焊工zx5

真搞不清楚是開(kāi)關(guān)板壞還是控制板壞還是其它什么原因

500) {this.resized=true; this.width=500; this.alt='這是一張縮略圖，點(diǎn)擊可放大。\n按住CTRL，滾動(dòng)鼠標(biāo)滾輪可自由縮放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/83/1470091258944381.jpg');}" onmousewheel="return imgzoom(this);">

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老焊工zx5

LV.2

2009-11-23 10:47

@老焊工zx5

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老焊工zx5

LV.2

2009-11-24 12:13

@老焊工zx5

檢查

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老焊工zx5

LV.2

2009-11-24 12:20

@guofulin

可控硅有一個(gè)發(fā)熱短路了,剛開(kāi)機(jī)的時(shí)候空載是正常了,但焊了兩三跟焊條后空載會(huì)下降,

500) {this.resized=true; this.width=500; this.alt='這是一張縮略圖，點(diǎn)擊可放大。\n按住CTRL，滾動(dòng)鼠標(biāo)滾輪可自由縮放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/83/1470091259036430.jpg');}" onmousewheel="return imgzoom(this);">

500) {this.resized=true; this.width=500; this.alt='這是一張縮略圖，點(diǎn)擊可放大。\n按住CTRL，滾動(dòng)鼠標(biāo)滾輪可自由縮放';this.style.cursor='hand'}" onclick="if(!this.resized) {return true;} else {window.open('http://u.dianyuan.com/bbs/u/83/1470091259036517.jpg');}" onmousewheel="return imgzoom(this);">

正面

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831012

LV.4

2009-11-25 11:22

@老焊工zx5

[圖片]500){this.resized=true;this.width=500;this.alt='這是一張縮略圖，點(diǎn)擊可放大。\n按住CTRL，滾動(dòng)鼠標(biāo)滾輪可自由縮放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/83/1470091259036430.jpg');}"onmousewheel="returnimgzoom(this);">[圖片]500){this.resized=true;this.width=500;this.alt='這是一張縮略圖，點(diǎn)擊可放大。\n按住CTRL，滾動(dòng)鼠標(biāo)滾輪可自由縮放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/83/1470091259036517.jpg');}"onmousewheel="returnimgzoom(this);">正面

那東西不好弄了,都是硅膠

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焊聯(lián)

LV.3

2009-11-25 21:58

@老焊工zx5

[圖片]500){this.resized=true;this.width=500;this.alt='這是一張縮略圖，點(diǎn)擊可放大。\n按住CTRL，滾動(dòng)鼠標(biāo)滾輪可自由縮放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/83/1470091259036430.jpg');}"onmousewheel="returnimgzoom(this);">[圖片]500){this.resized=true;this.width=500;this.alt='這是一張縮略圖，點(diǎn)擊可放大。\n按住CTRL，滾動(dòng)鼠標(biāo)滾輪可自由縮放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/83/1470091259036517.jpg');}"onmousewheel="returnimgzoom(this);">正面

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