How To Judge The Quality Of Aluminum Profile？
Aluminum profile is good or bad, the number and the purchase of aluminum is huge, is impossible to check, in order to reduce unnecessary trouble, it is very important to choose a good factory, if you know some factors affecting the quality of raw material, you can rest assured to buy materials.
1, alloying elements
The 6063 alloy is al, Mg and Si alloy 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 least allowable content in order to reduce costs. In some cases, the content of magnesium is lower than the minimum allowable content.
And in the factory to add alloy wire and waste away waste, not to mention the basic 6063 alloy. The mechanical strength of aluminum is very low, low to the hands are easy to bend, commonly known as "soft noodles". This is one of the reasons why aluminum profiles can be a few thousand yuan cheaper.
Regular aluminum profiles manufacturers have internal standards when preparing alloy components, that is, in all kinds of element contents, each factory has their own smaller change range. The ratio between three aluminum, magnesium and silicon is very strict. Each factory has its own data and keeps secret.
With a qualified alloy made of formula, the quality can be guaranteed, otherwise the quality of the alloy will not be processed in the future.
2. Aluminum alloy smelting furnace
With a good 6063 alloy to melt, with what the stove, which is also crucial, now used in domestic stoves have the level in 40s, with the level in 90s, the worst of the crucible factory original boiler used. A melting furnace with coal burning, oil burning, gas burning and electric heating.
Some furnaces have chimneys and some furnaces have no chimneys. Generally used as square furnace (rectangular furnace), advanced for circular furnace, and some round furnace can tilt aluminum water. On tonnage, there are one tonnage, two tons, five tons, ten tons, twenty-five tons and fifty tons of aluminum melting furnace. More advanced, add a static furnace and static furnace under the aluminum melting furnace. It is important to make 6063 alloy. In this furnace, slag can be removed, and then the aluminum bar can be cast.
The quality of the alloy prepared in the original coal burning furnace and in the modern round furnace is different.
In general, no matter what fuel is burned, there should be a chimney, and most of the waste residue produced in the combustion process can be discharged from the chimney.
If there is no smokestack, all the waste gas and slag will be melted in the aluminum water, so that the aluminum bar for extrusion will be produced. There is a serious slag inclusion inside the aluminum bar, which is one of the reasons for the poor quality of the aluminum profile, which is also one of the reasons why the aluminum price is cheap.