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Radiator soldering tips - Welding Tools

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Clean surfaces very well, use only silver solder and a lot of flux

Posted on May 12, 2017

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Posted on Jan 02, 2017

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Do stained glass soldering tips go bad or stop working. I have a weller soldering iron that doesn't heat up hot enough to solder. is it the tip or the iron


If this is the dual trigger Weller gun and your tips are held in place by either set screws or by locking nuts, Just loosen both of the parts that are holding the tip to the gun and then retighten them back up. Soldering iron tips that appear to be tight might not be and this will insure that the tip is indeed tight and also cleans up the connection of the tip to the soldering iron. Oxidation from heating and cooling will cause a tip to not get very hot. Loosen the tip holder and then retighten it. Hope this gets you going again.
Dennis

Apr 15, 2017 | Weller Welding Tools

1 Answer

Cant get the trans coolent lines to go in radiator, the part inside the radiator keeps moving around!! Please help


The secondary cooling coils should be soldered into place. Take the radiator to a radiator shop and have it soldered.

Jan 16, 2013 | Cars & Trucks

1 Answer

Wont heat enough to solder


Hello, does your solder iron --Weller- humming? Also, is the solder tips the right tips for you Weller woldering gun? Are the tips tightened on the end of the solder gun prongs?

Well, if it is humming there is internal short in the windings inside of the gun. Don't mess with. Recyle it by taking the copper, brass, aluminum, and other metal out. Now, if it is not humming.
Make sure you have right tips, make sure that the tip is tightened in the soldering gun prongs.

The working principal of these soldering guns is that they work on low voltage and very high current. The current is regulated to keep the tip from burning into. Just enough current to heat the tipe to a certain temperature.. It can shock you but there not enough voltage with current but it will hurt. and could burn you. Be careful and lots of luck...GB...stewbison

Aug 04, 2011 | Weller Standard Tip: 7200

1 Answer

I have a weller wp35, 35 watt iron. It came with the ST3 tip. I want to solder automotive wire, Say 14 to 20 gauge wire. Two questions: 1 is the wp35 strong/hot enough to do this type of soldering? 2...


The WP35 is strong enough and the ST3 tip will do the job. The larger tips are really only for covering larger items but when soldering it's the wire you heat, rather than the solder, and melt the solder with the wire. The tip will reach the same temperature regardless of the size and while the larger tip might heat the wire a little faster the difference would not even be noticeable.

Jan 30, 2011 | Welding Tools

1 Answer

How long to i leave it on


Turn it on long enough to melt solder, then switch off for a short time. Repeat this process as you solder to avoid oxidizing the tip and solder, yet keeping the solder fluid. If it starts to poorly heat the tips, tighten the tip nuts somewhat to break the oxidation that occurs on the bare copper. Hope this helps!

May 31, 2010 | Weller Standard Tip: 7200

2 Answers

Tips are corroding & disappearing


That is normal for a soldering gun especially if you are using acid core solder. I do a lot of soldering with rosin core & have to change the tip about every 6-8 months. Just get a couple of new tips. Rick

Mar 06, 2009 | Black & Decker Black Decker Dualtemp...

1 Answer

Tinning tips


Flux the tip, heat the iron, apply solder all over the tip and wipe, while hot, the solder off with fine steel wool.

If the solder is flux core, no need for additional flux

Good Luck

Jan 27, 2009 | Weller SP175 12 - 1/2'' Marksman Extra...

1 Answer

No longer melts solder with tip....


You have burned out residue on the tip. Clead it off with a damp cloth when the iron is hot. If this doesn't get it all, use steel wool. Immediately afterwards, get flux & solder onto the tip or it will get coated again.

Jan 24, 2009 | Weller BP860MP Dual Heat Battery Powered...

2 Answers

Soldering gun maintenance


Start with a clean soldering tip. If it's a new tip, use sandpaper or steel wool so the metal shines. With an old tip, you may need to use a file to remove badly oxidized areas. Once the tip is clean and shiny, press the soldering gun trigger to high and as soon as it's hot, apply a coating of solder to the tip. Use a rag to spread the solder evenly over the tip. The materials to be joined must be clean, dry, and free of grease and oil. Use a wire brush or fine sandpaper to get the surfaces clean and shiny. Make a good mechanical joint. Crimp terminals with a crimping tool or pliers, and twist wires together tightly.

Aug 27, 2008 | Electric Soldering Gun

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