Soldering help needed., It don't flow right - Page 2 - Electronic Circuits Projects Diagrams Free

**Krumlink** · 14th August 2007, 02:45 AM

Also, search a site for tips and tricks. On Aaroncake.net, he has a page devoted to "how to solder". STOP SPAMMING

blueroomelectronics · 14th August 2007, 04:23 AM

Some soldering tips
http://www.elexp.com/t_solder.htm

Gayan Soyza · 14th August 2007, 05:22 AM

I have a small 120mm 12V DC computer fan beside the soldering area.

Otherwise when I’m soldering all the soldering smoke comes to my face. Due to fan it’s all going away from my face. Otherwise I have to use breathing apparatus

Who knows this soldering smoke harmful to the body or not. Shopkeepers selling those are not harmful & lead free ones but who knows………

So I always use my fan.

**Krumlink** · 14th August 2007, 06:48 AM

What I am going to do is to Put a large tube fan (computer fan) inside one of those dryer air ducts (the springy metal ones) and have one side sucking air out and the other exhausting air outside.

Stellarcore · 14th August 2007, 03:10 PM

The smoke can be harmful, but not usually because of the lead. Lead doesn't vaporize until its temperature is in excess of about 800 Celsius, well above the typical temperatures used when soldering.

Any health effects is primarily caused by the flux vaporizing, which is a potential carcinogen (I interpret this to mean that there is no proof that its carcinogenic, but it hasnt been specifically studied). Prolonged and repeated contact can cause skin irritation (dermatitis), or if you breath in enough of the vapour it can cause suffocation because the fumes are heavier than air, but more likely you would see other signs before you suffocated (ie, light headidness, shortness of breath, unconsciousness, etc...)

I should really think about setting up a fan or something.. but I usually just dont inhale when the plume of smoke is rising and I only do occasional soldering.

**Nigel Goodwin** · 14th August 2007, 03:18 PM

I was one of the subjects in a government study about soldering, apparently the only concerns of the study were with regard to the possible triggering of asthma attacks in a very tiny percentage of known asthma suffers - caused by the flux vapour.

They were unable to find a single case in the service industries, but there were odd ones in manufacturing, where you soldered 8 hours a day! - their conclusion was that no extraction was required for the small amount of soldering done in a serice environment.

Presumably the same would apply to the amount of soldering done in a home environment?.

So basically, if you want to extract?, fair enough - it won't do any harm, but it won't do any good either!

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14th August 2007, 02:45 AM	(permalink)
Krumlink	Also, search a site for tips and tricks. On Aaroncake.net, he has a page devoted to "how to solder". STOP SPAMMING __________________ MechTronics World of Warcraft is a disease

14th August 2007, 04:23 AM	(permalink)
blueroomelectronics	Some soldering tips http://www.elexp.com/t_solder.htm __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com

14th August 2007, 05:22 AM	(permalink)
Gayan Soyza	I have a small 120mm 12V DC computer fan beside the soldering area. Otherwise when I’m soldering all the soldering smoke comes to my face. Due to fan it’s all going away from my face. Otherwise I have to use breathing apparatus Who knows this soldering smoke harmful to the body or not. Shopkeepers selling those are not harmful & lead free ones but who knows……… So I always use my fan. __________________ Gayan My Website http://gsmicro.blogspot.com/

14th August 2007, 06:48 AM	(permalink)
Krumlink	What I am going to do is to Put a large tube fan (computer fan) inside one of those dryer air ducts (the springy metal ones) and have one side sucking air out and the other exhausting air outside. __________________ MechTronics World of Warcraft is a disease

14th August 2007, 03:10 PM	(permalink)
Stellarcore	The smoke can be harmful, but not usually because of the lead. Lead doesn't vaporize until its temperature is in excess of about 800 Celsius, well above the typical temperatures used when soldering. Any health effects is primarily caused by the flux vaporizing, which is a potential carcinogen (I interpret this to mean that there is no proof that its carcinogenic, but it hasnt been specifically studied). Prolonged and repeated contact can cause skin irritation (dermatitis), or if you breath in enough of the vapour it can cause suffocation because the fumes are heavier than air, but more likely you would see other signs before you suffocated (ie, light headidness, shortness of breath, unconsciousness, etc...) I should really think about setting up a fan or something.. but I usually just dont inhale when the plume of smoke is rising and I only do occasional soldering.

14th August 2007, 03:18 PM	(permalink)
Nigel Goodwin	I was one of the subjects in a government study about soldering, apparently the only concerns of the study were with regard to the possible triggering of asthma attacks in a very tiny percentage of known asthma suffers - caused by the flux vapour. They were unable to find a single case in the service industries, but there were odd ones in manufacturing, where you soldered 8 hours a day! - their conclusion was that no extraction was required for the small amount of soldering done in a serice environment. Presumably the same would apply to the amount of soldering done in a home environment?. So basically, if you want to extract?, fair enough - it won't do any harm, but it won't do any good either! __________________ PIC programmer software, and PIC Tutorials at: http://www.winpicprog.co.uk