Casting machine technology and principle

Casting machine is a kind of equipment that makes high viscosity fluid into casting film. It has the characteristics of high production efficiency and good product quality, and is widely used in electronic ceramics, lithium batteries, thin film materials and other fields.

Working principle of casting machine
The working principle of the casting machine is to spread the slurry on the base band to form a uniform film under the combined action of gravity and shear force.
The casting machine is mainly composed of a trough, a scraper, a baseband, a drying chamber and a winding device.
The slurry flows out of the tank and is evenly spread on the baseband under the control of the scraper to form a billet film with a certain thickness. The billet film is then sent to the drying chamber together with the base band to remove the solvent or water in the slurry, thus obtaining the casting film.

Casting machine process flow
Casting machine process mainly includes slurry preparation, casting forming, drying and separation steps.
Slurry preparation is the process of grinding, mixing, dispersing and defoaming of raw materials to prepare the casting slurry with appropriate fluidity and stability.

Casting molding is to inject the slurry into the casting machine trough, under the control of the scraper, the slurry is evenly spread on the base band to form a blank film with a certain thickness.
Drying is to send the billet film together with the base band into the drying chamber, and dry it by hot air or infrared ray to remove the solvent or water in the slurry.
Separation is to peel the dried billet film from the base band to get the formed casting film.

Application of casting machine
Casting machine is widely used in electronic ceramics, lithium batteries, solar cells, thin film materials and other fields.
In the field of electronic ceramics, casting machine is used to produce ceramic substrate, dielectric layer, electrode layer, etc. In the field of lithium batteries, the casting machine is used to produce battery separator, positive electrode plate, negative electrode plate, etc. In the field of thin film materials, casting machines are used to produce optical films, barrier films, functional films, etc.