LED aluminum alloy radiator profile, radiator aluminum profile machining.
Aluminum alloy radiator profiles are also extruded aluminum profiles, and today we will make a simple classification of the structure of extruded aluminum profiles. Aluminum alloy extrusion profiles can be divided into two types: solid profiles and cavity profiles.
Aluminum alloy radiator profile extrusion is realized on extrusion equipment with extrusion die, so what should be paid attention to in the design and structure of aluminum alloy extrusion die and extrusion equipment?
1. Aluminum alloy extrusion cylinder: a multi-layer cylinder made of strength alloy steel, and the inner bushing can be removed generally. The length can be determined according to the tonnage of the extruder.
2. Mold base: ensure that the mold and the mold pad are concentric, which is an auxiliary tool when installing the mold pad.
3. Mold pad: The mold pad and the mold are the same size, and his thickness is about 2 times that of the mold, and it bears the pressure of the extruder together with the mold. Mold pads, the size of the die hole is slightly larger than that of the mold, and it is also made of alloy tool steel.
4. Profiler nozzle: an auxiliary tool to ensure that the mold is not displaced in the extrusion process and closely matched with the extrusion cylinder, and the structure and size are determined according to the tonnage of the extruder.
5. Extrusion cake: We also call it extrusion gasket, which is an auxiliary tool to prevent the extrusion rod from being in direct contact with the extruded metal aluminum rod. Its outer diameter is generally a little smaller than that of an extrusion barrel and about the same diameter as an aluminum rod.
6. Extrusion rod: When the extrusion rod is working, it stretches into the extrusion cylinder, contacts with the extrusion cake, bears the pressure of the extruder, and pushes the metal aluminum rod for extrusion.
What is the importance of the membrane hole design of the mold?
1. Single-hole profile die hole configuration: generally let the center of gravity of the mold coincide with the center of the mold, if the wall thickness deviation is relatively large, the thinner part should be configured in the center of the mold.
2. Porous profile membrane hole configuration: For profiles with small cross-sectional surface and poor symmetry, porous molds are usually used, and the spacing between porous membranes should not be too small, which will affect the diversion.
How to determine the working belt of aluminum alloy mold film hole?
First, the whole profile is difficult to discharge as the benchmark, the length of the working belt is 2 times the thickness of the finished product, second, the length of the working belt adjacent to the reference point is the length of the working belt of the reference point plus 1mm, third, when the thickness of the profile is the same, the distance from the center of the mold is equal to the length of the working belt, fourth, calculated from the center of the mold, the length of the working belt can be consulted for each 10mm distance between the length of the working belt, and the relevant literature can be consulted, and the empty knife of the working belt: too many hollow knives in the working belt, and the strength of the working belt of the mold is weakened.
Hindering the effect of the angle. When the length of the die hole working belt is greater than 15-25mm, in fact, the metal flow rate can be adjusted by the obstruction angle due to the size shrinkage metal is no longer attached to the working belt. The angle between the working belt bus and the extrusion center line is the obstruction angle. The effective angle of obstruction is 3 5 degrees.
Flow promotion angle: Generally, the flow promotion angle is made into a symmetrical cone or inclined cone on the working end face of the mold.