Aluminum profile die affects the method of aluminum profile extrusion.

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Aluminum profile extrusion die plays an important role in the aluminum profile extrusion process, is to ensure that the company's product forming, so that its development has a correct shape, size and precision of the basic information tool.

aluminum profile extrusion die plays an important role in the aluminum profile extrusion process. It is a basic information tool to ensure that the company's product is formed and its development has a correct shape, size and accuracy.

aluminum profile belongs to coating technology, which is to add pre-plating and electroplating process steps on the basis of conventional titanium plating process. The pre-plating process is to place the activated plated parts in an aqueous solution of salt and hydrochloric acid for chemical treatment. In the actual production, the extrusion process we may cause to appear for some solving problems.

Affects the aluminum profile extrusion method:

1. the joint angle or the influence of poor welding:

hollow aluminum profile is extruded by a flat split combination die, which makes the profile production more difficult. The metal passes through a shunt welding process to form a weld.


1, the orifice is small, the metal flow in the welding cavity is not enough to make the metal without sufficient hydrostatic pressure in the welding chamber, and the product does not flow out of the welding die hole, resulting in the existence of gaps in the welding articles;

2. Excessive lubrication and adverse effects on lubrication cause poor welding behavior of hollow profiles.

2. aluminum profile wall concave or arcuate convex surface


, hollow aluminum profile outlet profile wall concave arcuate surface causes important reasons: the aluminum profile core working belt is lower than the lower die hole working belt, and the effective data length of the core working belt is too short.

2. Reasons for the bulge of the hollow aluminum profile wall: the mold has been used for too long, the working belt of the mold core is severely worn, grooves appear, friction resistance is increased, and the slow metal flow leads to the bulge of the hollow profile wall.

3. aluminum profile surface stripes

Extrusion profile stripes on the outer surface, and after more obvious anodization. Defects shared large profile thickness difference parts on the inside of the rear surface and used in threaded holes to weld metal shunt bridge parts and branches.


1, the cell surface is striped due to insufficient or excessive use of metal supply at the profile and the branches and threaded holes inside;

2, the surface contour die bonding part of the striped joint area caused by the shunt bridge;

3. Problems existing in the design process of profile section drawing. Due to the large wall thickness difference of various profiles, the part where the length of the working belt changes suddenly produces a striped color difference after anodization.

4. Due to insufficient cooling capacity of the machine, anodic oxidation black stripe area is caused;

5. The quality of the blank itself is not good, which affects the color difference of stripes after anodizing.

Unreasonable Performance of Bending and Twisting 4.

, Unreasonable Use of Working Belt of Die Core and Lower Die Hole, Causing Uneven Distribution of Flow Velocity on Metal Surface at Various Parts of Profile;

, dividing the aperture of symmetrical hollow profile die and handling asymmetric positions, uneven metal current supply, cause uneven metal flow;

3. The shunt hole is not processed properly or there is an obstacle on the mold core that hinders the flow of Chinese metal companies.

Correction Method:

1. Grind the outlet part of the mold core or shunt hole by an appropriate method, and appropriately enlarge these shunt holes if necessary;

2. Remove obstacles with sandpaper.