One disadvantage that I know of is impurities or very similar metals being mixed.
Stainless steel mixed with mild steel results in a low scrap price due to the extra chemical analysis that the mill will have to do at melting.
Brass and bronze will have the same problem and well as some aluminum types.
Broken tools (mostly drills) are sometimes left in a piece of scrap metal which can result in a hard spot in the next application.
Another problem is the theft involved with the high scrap value metals e.g. brass, copper, aluminum and the cost to replace stolen item sold for pennies on the dollar.
Most scrap metal can be used countless times with out a weaken problem. Metal does become weak, but only in the shape or form that is manufactured. Remelting "renews" the metal due to it being test and analyzed to insure that it meets standards.
The recycling process is cheaper the mining the ores to make new materials which is why it is a thriving business.
2007-09-03 06:54:28
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answer #1
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answered by Anonymous
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im going to have to say there really arent any major ones, because it takes a lot less energy to remelt down a can and mold it than to mine more metal out of the ground. i saw somewhere you can make 20 pop cans from recycled material with the same energy it takes to make 1 can from natural resources. but no i dont work in the industry or anything, this is simply what i have heard and i dont know how accurate it is. im not sure what the cost is though of actually collecting the metals, but scrap metals have high prices right now so it must be worth it
2007-09-03 03:25:57
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answer #2
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answered by Anonymous
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* Reuse often requires cleaning or transport, which have environmental costs.
* Some items, such as freon appliances or infant auto seats, could be hazardous or less energy efficient as they continue to be used.
* Reusable products need to be more durable than single use products, and hence require more material per item. This is particularly significant if only a small proportion of the reusable products are in fact reused.
* Sorting and preparing items for reuse takes time, which is inconvenient for consumers and costs money for businesses.
2007-09-03 04:04:33
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answer #3
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answered by Jasmine 1
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would be carried out efficiently if the motor vehicle is parted by employing hand. promote the stable factors, remanufacture the drivetrain if needed yet do no longer basically overwhelm and soften something! it rather is wasteful, environmentally risky and additionally deprives people someplace of jobs. heavily, only supply autoshop scholars a job ripping into automobiles and sorting the factors, they are going to be doing the international stable, studying approximately automobiles and making some money. huge factories are being opened to technique automobiles in different factors of the international... enable's save our minds open.
2016-12-31 10:47:10
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answer #4
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answered by chocano 4
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as you reuse metal, the quility will get weaker(duh right)
its because of how it was created, pure metal is weak, so in order to make it stronger, they add other elements to make it alloy. (like steel and bronze) if you keep reuseing metal by melting or whatever, you acre actually adding some carbon or oxygen it each cycle
for iron, if you keep melting and such, it becomes cast iron which weaker and flexible... i believe they use such metal to make a cast for a arm or leg
2007-09-03 04:34:42
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answer #5
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answered by jdak34 3
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There are no disadvantages, believe me.
2007-09-03 13:25:03
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answer #6
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answered by gatorbait 7
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