how do you weld lead?

Answer 1

I agree with most of the others, you don't weld lead, it is called lead burning. You need a scraper to remove the oxide coat and get a shiny surface, and then, using a blowtorch with a fine jet flame, a strip of lead is melted by warming the point of contact to nearly melting point and then melting lead off of the strip so that the whole area amalgamates. If you see a piece of lead buring done properly, it will appear to be made up of a series of overlapping droplets. You will need to practise on some spare lead for quite a while to perfect a technique before committing yourself. Remeber, it takes years to learn to do it properly. I know, I have been a plumber for 36 years.

Answer 2

You don't is the simple answer, you solder the joint together.

You use a lead alloy solder that has a slightly lower melting point than the lead. Both parts of the joint are "Wetted". This involves covering in a Flux (Borax paste), and then the ends are heated and coated in the solder, using a blow-torch if you are skilled, or an electric soldering iron. Bring the two joints together, heat them and apply more solder. The joint is then finished by wiping excess solder off with a rag to get a nice surface.

However using lead, and lead solders are dangerous, as they give off lead fumes. If you have lead plumbing in your house, you will slowly be getting lead poisoning from it, and it should be replaces with Plastic, or copper pipes.

Answer 3

You can't weld lead as you can with steel - the melting point and softness precludes that - to join two lead items (eg pipes as in Victorian houses) you would use solder - there are many types of solder with different amounts of alloying metals and different properties. For lead you would use plumbers solder which solidifies slowly hence the ability to 'wipe' a smooth joint

Answer 4

Until you understand the dangers of lead poisoning and how you get it dont lift a finger. It is best done where there is plenty of ventilation (outdoors) and any excessive heating to the lead pot is to be avoided as the lead vapor pressure is proportional to temperature. I would post a new question describing what you are trying to accomplish and find how the job can be done without lead. If you browse any lead poisoning support group it may become a little more real to you.
You need your nervous system and kidneys in good shape and lead is a good way to bugger them permanently.

Answer 5

Try a product called "JB Weld" for a cold fix on a lead item, it's a two part liquid product you mix, as much or as little as you need. Will even work inside an engine block, scary.

Answer 6

After 14 weeks in a training establishment.

Answer 7

With DC current you have straight polarity DC+ and reverse polarity DC- MIG which is an automatic wire feed runs DC+, Stick electrodes run AC, DC+, DC-, In DC current only flows in one direction negative to positive so you have to decide if you want your work positive or negative.

Answer 8

You melt it down in a saucepan (an old one) on a stove and you can then pour it to seal a joint or whatever.

You can make fishing weights like that using molds.

Answer 9

with a soldering iron at very low heat

otherwise it runs away

Answer 10

u don't its called tining, because of its low melting point all u need is a good soldering iron