What Are the Operation Steps of Aluminum Profiles in the Extrusion Machine? -Ruminum Profiles Supplier

What are the operation steps of aluminum profiles in the extrusion machine? There are many types of extrusion machines. Although the main points of operation are different, there are similarities. Today, we will introduce the operation steps and points of the aluminum extrusion machine in detail.

First, preparation before driving 1. Plastic for squeezing molding.

Aluminum profiles should meet the dry requirements of the required, and further drying if necessary. Sift the raw materials to remove the block and mechanical impurities.

2. Check whether the water, electricity, and gas systems in the equipment are normal to ensure that the water and air circuits are unobstructed without leaks. Whether the electrical system is normal, whether the heating system, temperature control and various instrument work are reliable; Whether the work is normal; start the setting of a vacuum pump to observe whether the work is normal; lubricating the lubrication parts of various equipment. Discover the failure to exclude it in time.

3. Install the head and install the tube. According to the variety and size of aluminum profile products, select the nose specifications. Install the machine head in the following order. Second, driving 1. You can drive after constant temperature. Before driving, tighten the flange bolt of the head and the extrusion machine again to eliminate the difference between the bolts and the thermal expansion of the head. The order of tightening the bolt is tightened by diagonal, and the intensity should be uniform. When tightening the hexagonal nut of flange, the closeness around it is required, otherwise, aluminum profile materials are needed.

2. Start the car, press the preparation to start the button, and then connect to the start button, and then slowly rotate the screw speed adjustment knob to slow the screw speed start. Then gradually accelerate, at the same time a small amount of substances. Pay close attention to the changes in the host current table and various indicator heads during charging. According to the need, add enough aluminum material materials, and the dual screw extruder uses a measuring feeder to uniformly feed.

3. When the mold is uniform and the plastic is excellent, it can be used to pull people to set the sleeve. The degree of plasticization depends on experience to judge.

Generally, it can be judged according to the appearance of the extruded material, that is, the surface is luster, no impurities, no foam, coke, and discoloration. Squeeze the squeezed materials to a certain degree with your hand, without burrs and cracks, and have certain elasticity.

At this time, the material is well plasticized.

If plasticization is poor, you can adjust the screw speed, tube and head temperature until the requirements are met.

4. During the production of aluminum profiles, according to the process requirements, regularly check whether various process parameters are normal, and fill in the process record table. Check the quality of profile products according to the quality inspection standards, and timely take solutions to find problems. Third, parking 1. Stop the feed, squeeze out the plastic in the extruder. When the screw is exposed, turn off the power of the tube and the head of the machine to stop heating.

2. Turn off the aluminum squeeze and the auxiliary power supply to stop the screw and auxiliary machine.

3. Open the head to connect the flange and remove the head. Clean all parts of the perforated panel and nose. To prevent the surface of the head in the head during washing, the residue materials in the head of the head should be cleaned with steel sheet method and steel plate, and then use sandpaper to grind off the plastic that is adhered to on the head of the machine, polish, and apply motor oil or silicone oil to prevent prevention prevention rust.

4. Cleaning of screws and machine cylinders: After removing the head of the machine, restart the host, add the block (or fragmented), clean the screw and barrel.

At this time, the screw selects low speed (about sr/min) to reduce wear. After the material is suspended, the material is crushed into powder and is fully squeezed out. The remaining particles and powders can be repeatedly blown out by compressing the air from the feed inlet and exhaust port until there is no remaining materials in the barrel, and then the screw speed is reduced to zero. Stop the extruder and turn off the main power and the main cold water valve.

5. Safety matters that should be paid attention to during the squeezing process of aluminum profile squeezers include: electrical, thermal and mechanical rotation, and heavy object loading and unloading. The extruded aircraft workshop must be equipped with heavy objects such as lifting equipment, loading and unloading heads, screws to ensure safety production.