Double Layers Extrusion Coating Machine

Double Layers Extrusion Coating Machine

Double layers extrusion coating machine is a system used to coat both sides of lithium-ion battery pole pieces. It is easy to operate and can save energy. It can also avoid the problem of half-way winding of one side of the material, a common issue that results in poor quality. The machine uses an A/B side turn-back coating method, which is simpler than the other types of extrusion coating machines and can reduce the cost of raw materials.

Extrusion coating is a versatile technique that bonds a web of molten synthetic resin, usually polyethylene, to a variety of substrates, including paper, cardboard, aluminium foils, cellulose, non-wovens and plastic films. It can also be combined with co-extrusion, which involves two or more extruders working together to create a multi-layer film.

The coating machine consists of an extrusion unit, a melt pump, an oven, and a cooling tower. The melt pump is driven by a three-phase asynchronous motor and uses a nozzle that sprays a hot liquid onto the surface of the substrate. The coating machine can be controlled using a PLC or by an operator with a touch screen interface. The control system can adjust the speed and temperature of the extrusion units, as well as the thickness of the coating.

Aside from coating, the extrusion unit can also be used to make various shapes and sizes of pouches, bags, woven sacks, and other packaging products. It can also be used for mill and industrial wrappings, shipping packaging, and food bags. The product can be printed with a design, logo, and other information.

In addition, the coating machine can use a combination of processes to create a high-quality finished product. The extrusion unit can be heated with a ceramic heater to ensure better precision and a higher melting point. The machine can also be equipped with a dual-stage attack to realize coextrusion.

To reduce the incidence of crazing, the equipment can be adjusted to place the melt pump closer to the extrusion die and run the metalized layer against the chill roll. This can also be accomplished by lowering the melt temperature to prevent warping or curling as the structure cools.

Aside from improving the quality of the end product, the double layers extrusion coating machine can also increase production speeds. This can help companies produce more containers per day and lower operating costs. It can also help them avoid problems such as defects or quality issues, which can affect customer satisfaction. To achieve this, the machine must be properly configured and maintained. The coating process needs to be carefully monitored, and the slurry system should be checked regularly to ensure proper operation. The equipment should also be cleaned regularly to ensure the integrity of the slurry. If the slurry has a low viscosity, the production of the film will be difficult and the final product may not meet customer specifications. It is important to ensure that the coating machine is configured and operated correctly, so that it can deliver the highest quality product possible.

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