Aluminum alloy products are good or bad, and the number of aluminum alloy products purchased is huge, it is impossible to check them one by one. In order to reduce unnecessary troubles, it is very important to choose a good manufacturer. If you understand the quality of aluminum alloy products, If you have a big factor, you can buy a reliable material.
Metal alloying element
6063 aluminum alloy is an alloy composed of aluminum, magnesium and silicon as the main elements. Each element has a certain range of content, and the price of magnesium is high. Some manufacturers reduce the amount of magnesium to the minimum allowable amount in order to reduce the cost. Some even worse, the magnesium content is lower than the minimum allowable content. In addition, the factory added waste wires and waste pot aluminum scrap pots in the alloy, which is basically not the 6063 alloy. As a result, the mechanical strength of aluminum alloy products is very low, which can be as low as two bends, which is commonly called "noodles". This is one of the reasons why aluminum alloy products can be thousands of dollars cheaper.
Regular aluminum alloy manufacturers have internal standards when formulating alloy components. Within the range of various elemental contents, each factory has their own smaller range of variation. The ratio between aluminum, magnesium and silicon is very strict. Each factory has its own data and keeps it confidential. If the alloy is made of qualified formula, the quality can be guaranteed, otherwise the quality will not be improved in the future.
Aluminum alloy melting furnace
It is also crucial to have a good 6063 alloy for melting. The furnaces used in China now have the level of the 1940s and the level of the 1990s. The worst manufacturers use the original bismuth boiler. There are coal-burning, oil-burning, gas-fired and electrically heated melting furnaces. Some stoves have chimneys, and some have no chimneys. Generally used are square furnaces (rectangular furnaces), advanced ones are circular furnaces, and some circular furnaces can be inclined to pour aluminum water. On the tonnage of one ton, two tons, five tons, ten tons, twenty five tons and fifty tons of molten aluminum furnace.
More advanced, add a static furnace under the aluminum melting furnace, the static furnace is important to prepare 6063 alloy, in which the slag can be degassed, allowed to stand, and then cast aluminum rod for extrusion. The quality of the alloys formulated in the original coal-fired furnaces and modern round furnaces is absolutely different. Generally, the furnace should have a chimney regardless of the fuel burned. Most of the waste gas generated from the combustion of the fuel can be discharged from the chimney. If no exhaust pipe waste gas is completely melted in the aluminum water, the aluminum rod for extrusion is cast, and there is a serious slag bubble inside, which is one of the reasons for the poor quality of the aluminum alloy product, which is one of the reasons for the low price of aluminum. .
