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Tool Talk Discussion Forum

Re: Stick Welded some Cast Iron the RIGHT way...

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Author  [Modern View]

03-18-2013 14:03:57

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I would have put a 6-feet long piece of 1-inch pipe on that vice handle! :lol:
You need to get a infrared thermometer for your preheating needs.
With SMAW, personally I think 6-G is easier than 5-G. With GTAW 5-G is a lot easier than 6-G! 6-G you have to know how to weld with both hands. :wink:

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george md

03-18-2013 21:20:21

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 Re: Stick Welded some Cast Iron the RIGHT way... in reply to Puddles, 03-18-2013 14:03:57  

I agree with the infra red gun, I got an extended range one that reads to 1800, need it when doing the normalizing as it needs to be 1500 for 15 minutes. Too hot to put fingers in to use temple sticks.


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Stick welding

03-18-2013 21:06:04

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 Re: Stick Welded some Cast Iron the RIGHT way... in reply to Puddles, 03-18-2013 14:03:57  
I've heard that the infrared thermometers aren't always accurate and tempilsticks are more accurate for preheating purposes.

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03-19-2013 02:39:22

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 Re: Stick Welded some Cast Iron the RIGHT way... in reply to Stick welding, 03-18-2013 21:06:04  
Stick welding I have wondered how accurate the infrared thermometers are, don't see a lot of talk about them. I know they get real expensive, especially the temperature rage George is talking about! Temp sticks are a lot cheaper.

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03-19-2013 16:16:35

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 Re: Stick Welded some Cast Iron the RIGHT way... in reply to Puddles, 03-19-2013 02:39:22  
We used a Type K thermocouple set-up in the past with a Fluke gun. The thermocouple and wand were as much as the gun it connected to. I forget the brand we use now, but much cheaper. Rather than paying to have it calibrated annually, toss it and buy another one.

For what it's worth, we aren't allowed to use infrared guns for heat treating purposes. I don't know if an infrared gun can be calibrated or not. Even the stop watches used have to be calibrated annually.

These same engineers (materials engineers) have stated for the record cast iron is a non-weldable material. I'm sure it's for liability purposes, but there it is.

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Stick welding

03-19-2013 18:58:43

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 Re: Stick Welded some Cast Iron the RIGHT way... in reply to sheiserman, 03-19-2013 16:16:35  
Thanks for posting that. It's always nice when there's evidence to back up something you've heard.

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03-20-2013 18:08:42

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 Re: Stick Welded some Cast Iron the RIGHT way... in reply to Stick welding, 03-19-2013 18:58:43  
Wish I could provide a little more information, but the reason we can"t use infrared has to do with a lack of control with the reflection of the beam. That"s as far as I can go with it.

Whenever we pre/post heat or stress relieve, we have to collect and store the data, and graph the process from start to finish. That can be accomplished easily with thermocouple connections.

I"ll bet a dollar we can get a vise up to 1200 + degrees in under a minute and prove it with some old school Miller powered induction heaters. Scary how fast that system is.

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