Blocking caused by complex profile of aluminum profiles

Blocking caused by complex profile of aluminum profiles

【China Aluminum Industry Network】 has a set of extrusion dies, 1800 ton machine φ184 extrusion tube, aluminum profile side with 40 * 40mm cavity, wall thickness of 2.5mm, connected with a 0.8mm wall thickness of the arc arm Extending to the other side, the profile has a total external diameter of 210mm, a cantilever diameter of 170mm, a larger arc length, a weight of about 1.5 meters, and a large and small machine can no longer be produced. It must be produced on a φ184 drum, which is an extension die. .

Due to the substantial difference in the thickness of the two side walls, the thin-walled arc portion must exit the working belt first, and the thin-walled portion of the distal expansion portion must exit first. Out of the slow wrinkle in the work zone, out of the thick place to bend the material wrapped 10 times to block 7 times.

After taking a thin wall out to remove the shovel and flatten it again on the machine (note that the rod should be short for high temperature to replace the mold to be compact), 2-3 times in succession, the number of mold plugging is reduced to 11 to 2.

There is also an extrusion die, aluminum outer diameter 80*80mm, outer wall 4mm, inner diameter 2.5mm, there are a variety of shapes and sizes male 12, the middle male is particularly small, after the machine is pressed on some male Partial or even broken, followed by blockage, not stopping after blocking, the male breaks more. This set of molds is designed to provide customers with one-off molds, and the amount of more than 2 tons of aluminum profiles, customers provide 3 sets of mold models. Aluminium was produced for 2 months. The extrusion die scraped N sets, and no qualified material was produced. All of the extrusion die was damaged due to die blocking.

Later we adopted the following method:

1. The middle part of the work belt as a whole to reduce the resistance;

2. The empty knife and drainage trough are all smooth to reduce adhesion and friction;

3. Male pylons are lowered to reduce collisions and swings;

4. High temperature and slow pressure, when the aluminum will be out of the mold when the work of the mold, in the middle part of the mold coated with graphite lubricant after the slow lubrication, extrusion profile pad good floor guide good straightness, Not shaking. With 2 sets of molds to produce 2 tons of multi-profiles, only a slight deviation in the middle ribs, customers accept, complete the task.

The more complex the shapes of aluminum profiles, the more difficult it is to produce aluminum, and the more attention must be paid to uneven flow rates. The extrusion die should adopt the high temperature and slow extrusion method to complete the higher principle instead of grabbing the speed and grab the output.

Shower Arm

Shower Extension Arm,Brass Shower Arm,Angled Shower Arm,Shower Arm With Flange

FOSHAN SHAMANDA SANITARY WARE CO., LTD , https://www.shamandahome.com