What is the role of a new continuous screen changer in the production line of foam sheets
The excellent sealing performance of the new continuous hydraulic extrusion screen changer prevents the corrosion of the machine by flame retardants. The addition of flame retardants requires special measures to protect the steel used from corrosion. In order to minimize the corrosiveness of flame retardants, the melt temperature must be maintained within a narrow range (approximately 220 ℃ for higher temperatures). The corrosiveness of flame retardants increases sharply with each increase in melt temperature. In addition, if flame retardants come into contact with oxygen in the air, their corrosiveness will increase. Therefore, when used in the extrusion production of materials containing flame retardants on a series extrusion production line, the melt filtration system must be thoroughly sealed.
continuous screen changer
Melt pump is used to control the stability of feed pressure to prevent the change of foam structure caused by pressure fluctuation. The operator replaces the filter unit (filter) through the alarm emitted by the electric control box. The hydraulic station drives the screen changer to automatically change the screen without interrupting production, so that the key conditions for obtaining stable foam structure can be met.
hydraulic extrusion screen changer
The use of a new continuous screen changer can prevent equipment downtime caused by impurities and pollutants during the production process of expanded foam sheets. In this way, the filter replacement process ensures that the production of pressure sensitive expanded foam will not be interrupted. A new continuous screen changer production line with an integrated automatic screen changer cleaning device can be used for several months, even in cases of high pollution during the production process. In this case, the fully automatic mode of operation of the new continuous screen changer can also meet the needs of high automation of the entire production equipment.
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