6061 aluminum bar is a common aluminum alloy material. How is it cast?Then today 6061 aluminum bar manufacturers to introduce to you, 6061 aluminum bar casting method steps.
Correct casting temperature is also an important factor for the production of high quality 6061 aluminum bar, temperature insufficient cross, easy to produce slag, pinhole forging defects.High temperature crossing will lead to coarse grain, feather crystal and so on.
After the 6061 aluminum bar is microrefined, the forging temperature is moderately increased, typically between 720-740℃] C controlled, because:
1. Aluminum liquid becomes sticky and solidifies to form crystallization after grain treatment.Among them, 6061 aluminum bar has a liquid-solid two-phase ribbon in the forging crystallization front, while the one with high forging temperature has a narrow ribbon, which is conducive to the gas escaping from the crystallization front, and of course, the temperature is also too high.
2, in conditions, sufficient preheating, drying tank, casting system steering disk, etc., to prevent molten aluminum to form water and hydrogen absorption.
3, 6061 aluminum bar forging, as much as possible to prevent the turbulence and roll of aluminum, do not disturb the flow tank and splitplate of aluminum liquid, this is because the molten aluminum oxide film stirring equipment and flow lead to all rolled aluminum surface cutting, the formation of new oxide, and involving the molten aluminum oxide film.
Filter 6061 aluminum bar liquid aluminum is a useful method to remove nonmetallic slag from the liquid aluminum.In the forging of 6061 aluminum bar, multilayer glass cloth or ceramic filter plate is usually used for filtration, regardless of the filtration method.In order to ensure the normal filtration of molten aluminum, to remove the surface scum of molten aluminum before filtration, due to the surface scum jam easy filter hole filtration material, the filter cannot be carried out normally, a simple method to get rid of the surface scum liquid aluminum is arranged in the flow tank slag, aluminum scum before filtration removed.
The casting method and steps of 6061 aluminum bar are introduced here. If you need 6061 aluminum bar, please consult us.