Fire retardant filter for vehicles

Abstract

The invention discloses an inflaming retarding filter screen for vehicles. The filter screen is characterized in that polypropylene is used as a main raw material, and the extrusion molding technology is adopted, wherein during the extrusion process, inflaming retarding components, a setting agent and a masterbatch agent are added; during the extrusion pressure control, the pressure at the extrusion end is controlled within the range from 3000 Psi to 3500 Psi, the pressure at an engine neck section is controlled within the range from 2500 Psi to 2800 Psi; during the temperature control, the temperature at the extrusion end is controlled within the range from 350 F to 400 F; the temperature variation of each heating area from the extrusion to the final process of molding is controlled within 1F; plastic melting time is controlled within 40 S. The inflaming retarding filter screen for vehicles has the advantages and benefits that the inflaming retarding effect at the greatest extent in many aspects such as product components and structure is optimized, the high-temperature inflaming retardance of the filter screen and the shaping property in a high temperature environment are improved, the product feature and safety are improved; at the same time, filter screen components produced can be used at lower temperature, can be used for preventing the problems that the filter screen components are extremely easy to embrittle, crack or harden enough to rupture a membrane under low-temperature conditions, and has folding and shaping capability at the same time.

Description

technical field [0001] The invention relates to a flame-retardant filter screen for vehicles, in particular to a flame-retardant discounted filter screen for automotive air filtration. Background technique [0002] With the extensive use of engines in the industry and the automobile industry, the importance of engine air filtration is highlighted. The material of automobile air filtration is mainly paper cotton, and its support is mainly plastic products. Because the filter is always If it is located in the engine compartment, it will be located in a high-temperature area for a long time, which will easily cause safety hazards. With the consideration of the safety of vehicle components, ordinary plastic filters cannot meet the safety standards for vehicles due to their flammability and other characteristics. Contents of the invention [0003] The purpose of the present invention is to provide a flame retardant filter for vehicles, which optimizes the flame retardant effect...

AI Technical Summary

Problems solved by technology

[0002] With the extensive use of engines in the industry and the automobile industry, the importance of engine air filtration is highlighted. The material of automobile air filtration is mainly paper cotton, and its support is mainly plastic products. Because the filter is always It is located in the engine compartment and will be located in a high-temperature area for a long time, which can easily cause safety hazards. With the consideration of the safety of vehicle components, the characteristics of ordinary plastic filters such as flammability cannot meet the safety standards for vehicles.