We all know that 5052 aluminum bar is produced by extrusion, sometimes there will be extrusion of the big cap, then we need to find out the reason to solve this situation, the next 5052 aluminum bar manufacturers to give you a possible reason.

1. First of all, the end surface of the extrusion die may be uneven or there is a defect opening to make the locking surface have a gap, aluminum channeling, resulting in such a situation, at this time the mold defect opening should be repaired welding in time, the die surface must be milling flat.

2. The second possibility is that the feeding cavity peripheral circle is too large, and the clamping area of the die cylinder is small. The distance between the feeding cavity peripheral circle and the cylinder wall is normally kept at a single side of 10mm, which cannot be less than 5mm.

3. The mold can also be extruded without milling nozzle. The closed surface of the mold is too large, and the pressure value per unit area is less than the outlet pressure.At this time, the treatment method is that the tube surface should be properly oiled so that it is no longer stuck to aluminum. The aluminum on the die surface can be cut off for many times.

4, is the size of the extrusion die nozzle is smaller than the size of the cylinder surface, the cylinder surface closure area is small, but also easy to damage the cylinder surface.Pay attention to the small machine mold refit to the large machine mold to choose the appropriate diameter.

5. The extrusion ratio is too high, the extrusion pressure is less than the outlet resistance, the locking surface is uneven, and the aluminum flows out of the locking surface.At this time can be appropriately increased by 5052 aluminum bar mold temperature, tube temperature.The 5052 aluminum bar can be stamped in a short time without blindly raising the bar temperature, and the high temperature of the bar also tends to remove the cap, which also limits the speed increase.

The reason of 5052 aluminum bar extrusion big cap and the solution are introduced here, if you need to consult 5052 aluminum bar price can contact us.