What is the safest method to connect a number 4 aluminum house wire to a copper wire oven pigtail?

John T. Larsen has written: 'An x-ray method for following the precipitation process in polycrystalline aluminum-copper' -- subject(s): Metallurgy

Actually, i don't know if u want get the alloy. but if that, we can use electrodeposited method to easily get the alloy in any shapes. we can discuss about it later.

Use a magnet to sort out the iron from the aluminum.

scientific method (al)

By heating copper sulfate is decomposed in copper(II) oxide and sulfur trioxide; by reduction of the copper oxide with hydrogen copper is obtained.

A notable advance in copper mining technology is the solvent extraction-electrowinning (SX-EW) method of production.

Grooved method? Threads on the end of the pipe? There is no tube or pipe in copper with threads. You can end a copper pipe with a connection that is threaded to accept steel pipe.

Copper recycling is to get copper from copper contained materials by ways such as extracting, separating, etc.. This is a resource-saving and environment-friendly method for us.

Aluminum is produced from its ores (e.g. bauxite) by electrolysis of the molten aluminum salts.

Copper sulphate is manufactured by dissolving the copper fillings in Sulphuric AcidProf Abdul Khaliq Bakoch

This process is called "electrowinning" of copper.

It is estimated that only 15 percent of world copper reserves and 13 percent of U.S. copper reserves can be processed via the SX-EW method.

AMP (part of Tyco) manufactures the COPALUM system. It's a form of pigtailing, but the electrician uses a special machine that applies (IIRC) over 20 tons of force to the crimp. When it's done, it is as safe as you can possibly get with the notoriously unsafe aluminum wiring. 12-gauge aluminum and 14-gauge copper both handle 15 amps, so that's okay. The proper way is to get a licensed electrican with aluminum experience to "pig-tail" all the aluminum wire in the entire house. This way you wind up with only copper wires to work with. I live in an area with a LOT of aluminum wiring and made a nice living for awhile doing pigtail work. You use the anti-oxidant compound and al/cu connectors. But the important part is to make sure that the connection is made correctly--something a lot of inexperienced electricians might mess us--and that the wire is skinned back so that it had not been abraded or oxidized in any way. It costs a few dollars, but unless you are ready to have your house burn down, it is worth it. electrical supply stores carry a wire nut made for cop to alum connections I very strongly do-not recommend the use of two dissembler metels in wiring. You are asking for TROUBLE big time! When two metels are put together they set up a reaction called electrolysis which causes currosion. This causes the junction to heat which is a major cause of electrical fires! Aluminum may be cheap but better forgotten. Aluminum also has more resistance than copper and therefore requires a lot larger wire. If you don't mind dim lights, hard starting motors that heat because of the lack of available power ect. Well I hope you got the idea. Aluminum is better to make pop cans out of! I'm sure the guy meant "dissimilar," but I agree - DON'T DO IT! When connecting aluminum and copper wiring together you must use devices marked CU AL which are designed to keep the 2 wires from touching each other. Best advice is to absolutely not use aluminum wiring! Don't forget that if you have to use Aluminum wiring you should coat all your connections with an anti-oxidizing paste to lower the fire hazard. 3M also makes a crimp type tool and connectors that can be used with it to make a aluminum to copper connection (IF ABSOLUTELY NECESSARY). It works better than the AL-CU nut type connectors. 3M also makes a handy little wire nut specifically designed to connect aluminum and copper wires that already contains an anti-corrosion compound probably the simplest and easiest method.

It is called aluminum welding. Aluminum can be TIG welded, the most common method, or oxy-fuel welded, or stick welded, or MIG welded.

The method used to extract Cu from its ore depends on the nature of the ore.

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The newest method is bioleaching.

Solid Minerals such as Gold and Copper are mostly mined using the Open Cast Method.

It's too expensive to extract copper from land using traditional method because the quarrying and heating of the metal would result in an energy expenditure that would make mining copper counterproductive.

Because copper is rarer than iron and iron uses and easier extracting method.

copper ore is usually in the form of malachite, needs to be refined through chemical method.

You can extract copper from copper II oxide through reduction method using hydrogen gas or CO. By passing hydrogen gas or carbon monoxide over heated copper II oxide you will be able to obtain copper metal.

Iron can be extracted with a magnet.

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One method of extracting copper from a solution of its compounds is electrophoresis. An electrode made of copper would be dipped into the solution. Cu++ ions that are dissolved in the solution would migrate towards the copper electrode and get deposited onto it.