1. Alloying Elements
6063 alloy is aluminum magnesium silicon as the main element of the alloy, each element has a certain range of content, and the price of magnesium is high. Some manufacturers reduce the cost of magnesium to a minimum allowable content. Some, moreover, put the magnesium content below the permitted minimum. There are also factories in the alloy waste wires and basin waste aluminum pot, which hardly to say 6063 alloys and can be bent easily with one hand, commonly called as soft as noodles due to the low mechanical strength of aluminum profiles. It is one of the reasons why aluminum can be thousands of dollars cheaper.
In the preparation of alloy components, the legal aluminum manufacturers have internal standards, that is, in the range of elements. Factories have their own smaller range of changes, the ratio between aluminum, magnesium, and silicon is strict, and each factory has its data and mutual confidentiality. The alloy made of qualified formula can guarantee quality. Otherwise, its quality can not go up when processed.
2. Aluminum Alloy Melting Furnace
How well the 6063 alloy melts in what furnace is also crucial. Now the domestic furnace has a level of '40s and the level of '90s, the worst manufacturer with the original crucible boiler. There are coal-fired, oil-fired, gas-fired, and electric-heated melting furnaces. Some stoves have chimneys while others have no. The most used is a square furnace (rectangular furnace). The advanced round furnace can tilt and pour aluminum water. There is one ton, two-ton, five-ton, ten-ton, twenty-five-ton, and fifty-ton aluminum smelting furnaces in tonnage. More advanced, add a static furnace under the aluminum melting furnace, which can be in this furnace for slag and gas removal, static, and then cast aluminum rod for extrusion use.
The quality of the alloy prepared in the original coal furnace and the modern round furnace is quite different. Generally, it should have a chimney no matter what fuel is burned, and most of the waste gas and slag produced by the fuel in the combustion process can be discharged from the chimney. If there is no smoke pipe, the waste gas and slag are melted in the aluminum water to cast the aluminum rod for extrusion. There are serious slag bubbles inside, which is one of the reasons for the poor quality of aluminum material.
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