As well known, with the steady, continuous and rapid development of our national economy and high technology, aluminum smelting and aluminum profile processing industry in China has promoted the rapid development. Aluminum profile products become more and more popular in every area. But how does the aluminum profile product from? Today, let’s learn the processing of aluminum profile extrusion together.
What is aluminum profile extrusion?
Aluminum profile extrusion is a processing method which to put aluminum make the issue from the specific die, so as to achieve the desired cross section alloy inserted into the extrusion cylinder with a certain amount of pressure to shape and size.
This extrusion processing method occupies a considerable proportion in the modern industrial production system with a lower cost but high efficiency and simple operating. As a result, aluminum profile plays an important base materials in the national economy.
Processing of aluminum profile extrusion
How to extruded aluminum? Aluminum profiles should be extruded in accordance with the following processing:
The preparation before extrusion
Checking fuel system → checking air pressure system → checking wiring and power supply facilities → checking water circulation system → checking the number of aluminum rods and the model of the mold.
Details of preparation checking:
1. Checking carefully whether the fuel system of each extrusion production line is normal;
2. Checking carefully whether the supply of the air pressure system is normal, and recording the flow and pressure value;
3. Checking carefully whether all lines and power supply facilities are normal and whether the voltage is within the stable range of 380V;
4. Checking carefully whether the cooling circulating water system is opened, and whether the water pressure and flow rate are within the prescribed range;
5. Checking the raw materials, and checking carefully whether the number of aluminum rods is consistent with the mold model.
The processing of extrusion
Aluminum rod tiling → heating 12 aluminum rods at a time → temperature up to 480℃ holding for 1H → Mold heating to 480℃→ Mold into the die holder → feed to the raw material mouth → extrusion → traction → straightening → aging → out of the oven → holding for 2h after 200℃ → cooling → completion
Details of every processing for extrusion:
1. Putting the prepared aluminum rod flat on the material shelf and reserving a certain gap between the aluminum rod. It should be noted that the aluminum rod can not be stacked, otherwise it will enhance the difficulty of the extruder, and injure the staff if aluminum rod falling down during operation.
2. Strictly accordance with the processing, 12 aluminum rods are placed in the furnace and heated at room temperature. When the heating time reaches 3.5h, the temperature reaches 480℃, and then the normal production can be carried out after holding for 1h.
3. At the same time, put the extrusion mold into the furnace to heat, so that the mold temperature also reaches 480℃;
4. After the heating and heat preservation work of aluminum rod and mold is done, put the mold into the die base of the extruder and get ready;
5. Putting the cutting aluminum rod into the raw material entrance of the extruder to prepare for extrusion;
6. Entering to the extrusion stage, after getting out of the outlet hole, extruded profile will be pulled by machine traction and set the length size for cutting. Then, the aluminum profile will be sent to the straightening table for straightening, and transported to the finished product area for sizing cutting after straighten.
7. After cutting under requirements, aluminum profile will be loaded into the material frame and transported to the aging area for aging treatment. If the aging temperature reaches 200℃ and holding the heat for 2 hours, it is time for waiting out the oven;
After the completion of aging, aluminum profile will be released and then enters into cooling stage. Cooled naturally or cooled by air cooler is ok.
Therefore, the whole extrusion work of aluminum profile is finished with qualified appearance as well as shape and size.
