1. Characteristics of cold press molding process This process has been used in European, American and domestic and foreign companies, but it has not been applied in domestic enterprises. The biggest feature of the cold press molding process is that it does not need hot pressing and directly enters the heat treatment box for treatment, thus saving the hot pressing process and reducing the investment of personnel, equipment and electricity.
Defining Forming: The process of making a blank or workpiece into a predetermined shape and size using a process.
Introduction of cold press molding process
1. Characteristics of cold press molding process This process has been used in European, American and domestic and foreign companies, but it has not been applied in domestic enterprises. The biggest feature of the cold press molding process is that it does not need hot pressing and directly enters the heat treatment box for treatment, thus saving the hot pressing process, reducing the input of personnel, equipment and electricity, and improving the production efficiency. Take the push-pull cylinder press as an example. Each press can produce 1500-2000 sets of products per day. If automatic presses are used, the efficiency is even higher. There is also a product produced by the process, because there is no hot pressing process, the flow of the resin is reduced, and the material distribution is uniform, so the quality of the obtained product is stable, the surface is loose, the porosity is high, the high temperature performance is good, and there is no noise.
2, other process conditions Now there are many processes in domestic platter forming. For example: dry secondary molding process (also known as two-step process), dry hot pressing one-shot molding process (also known as one-step process), wet one-shot molding process Etc., various processes have their advantages and disadvantages.
Secondary molding process: divided into two processes of cold pressing and hot pressing, high efficiency, easy for large-scale production, generally adopted by manufacturers. However, the development cost of the mold is high, and the density of the process product is different, and the quality is not stable enough.
Dry process: This process is only a hot pressing process, the product density is consistent, the quality is stable, but it is not convenient for large-volume, large-scale production. Many supporting OEM products use this process.
The wet one-shot molding process generally uses a liquid resin or an organic solvent to dissolve the resin. Since this process has many inconveniences, it has been rarely used by manufacturers.
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