Introduction of aluminum profile heat sink extrusion

Aluminum Extrusion is the process of putting aluminum alloy into the extrusion cylinder and applying certain pressure to make it flow out of the specific die hole to obtain the required section shape and size. This method has low cost, high efficiency and simple operation. It occupies a considerable proportion in the industrial development and production management system of modern enterprises, making aluminum profiles an important basic research material in China's national economy. The extrusion of aluminum profiles shall be carried out according to the following process flow:

Preparation before aluminum extrusion:

Check the fuel system? Check the pneumatic system? Check wiring and power supply? Check the water circulation system? Check the number of aluminum bars and Mold model.
1. Carefully check whether the fuel system design of each extrusion production line can supply normally;
2. Carefully check whether the air pressure system supplies gas normally, and record the flow and air pressure values;
3. Carefully check whether the circuit and power supply facilities are normal and whether the voltage is within the stable range of 380V;
4. Carefully check whether the cooling circulating water system design is open, and whether the water pressure and flow management are within the specified time range;
5. Count the raw materials and carefully check whether the number of aluminum bars is consistent with the mold model.
Start steps of aluminum extrusion work:
The aluminum bar material is paved → 12 aluminum bars are heated at one time → the temperature can reach 480 ℃ and heat preservation for 1h → the mold design is heated to 480 ℃ → the mold product is put into the standard mold base → the feeding port → extrusion → traction → straightening → aging → discharging → insulation for 2h after 200 ℃ → cooling → completion.
1. Put the prepared aluminum rods on the shelf, and leave a certain gap between the aluminum rods. Pay attention not to stack the aluminum rods, otherwise it will increase the difficulty of the extruder and easily cause aluminum alloy during operation. The staff was injured when the rod fell;
2. Operate in strict accordance with the process flow, put 12 aluminum rods into the furnace and heat them at room temperature. The heating time reaches 3.5 hours, the temperature reaches 480 ℃, and the normal production can be started after holding for 1 hour;
3. At the same time, put the extrusion die into the furnace for heating to make the die temperature reach 480 ° C;
4. After the aluminum rod and mold are heated and insulated, put the mold into the mold base of the extruder and prepare it;
5. Put the cut aluminum bar material into the raw material of the extruder for entry and prepare for extrusion;
6. Enter the extrusion stage. After the extruded profile comes out of the outlet, it is pulled by the tractor to determine the length and size for cutting, and then the Aluminum Profile is sent to the calibration platform for straightening. Then the aluminum profile can be transported to the finished product area for cutting to length.
7. Load the cut aluminum profile into the rack as required, transport it to the aging zone, and enter the aging furnace for aging treatment. When the aging temperature reaches 200 ℃, keep it for 2 hours, and then wait for the furnace to be discharged;

After aging, it can be discharged. In the cooling stage, it can be cooled naturally or through cooling fans. So far, the staff of the extrusion enterprise has completed the extrusion of aluminum profiles with qualified appearance design quality and shape and size.

aluminum profile process