Junk cars can be melted down - General Discussion

BLE gave a fairly good overview.

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We have car shredding operation in our city. The first step before flattening a car at the junk yard is to remove the gas tank, wheels, battery, drain the A/C refrigerant, and drain the cooling system. All these are required by law. Batteries go to battery recycling plants where the lead is recovered.

The flattened cars are shipped to the central shredder where they go through a gigantic hammer mill that shreds them into 2 inch or so pieces. Steel parts are magnetically separated, as a powerful air blast removes the &#;fluff&#;, those non metallic parts such as upholstery, rubber, carpet, etc. The fluff is often burned where legal. Where not, it has to be landfilled or recycled.

The shedding yard also receives local wrecks that are not flattened for transport. The yard then goes through the same process. On the prairies there are no blast furnaces to make steel; all steel is made electrically from scrap of cars, machinery, appliances, etc. Of course the steel is melted down and poured into ingots (molds) and then sold for further processing into sheet steel, pipe or other forms. Here it goes mostly into oilfield tubing, pipe and drill rods.

To answer your rhetorical question of dropping cars into volcanos, there may not be enough heat at that level to get proper melting. Besides, the US department of the environment would not allow it.

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Unless you are in the business, you might not even know what a Shredder or a Crusher does, let alone the difference between the two. They both are important to a salvage yard and serve completely different purposes for the business.

What is a Shredder?

Vehicles are the number one most recycled item in the United States and having a scrap metal shredder is one way we can do our part for the environment. Shredded scrap can be sorted into ferrous and non-ferrous piles and used to create new metal products. 

In addition, a shredder plays a key role in protecting any vehicle from identity theft which has been on the rise over the last 5-10 years. 

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