Polyurethane antitheft door plate

Abstract

The invention discloses a polyurethane antitheft door plate, and belongs to the field of novel plates. The polyurethane antitheft door plate comprises an outer plate and an inner filling layer, wherein the inner filling layer is polyurethane foam; a polyurethane layer is sprayed on the surface of the outer plate; the outer plate is any one of a steel plate, a stainless steel plate, a copper plate and an aluminum alloy plate. According to the polyurethane antitheft door plate disclosed by the invention, the polyurethane antitheft door plate is internally filled with the polyurethane foam, and the polyurethane foam is high in density and large in strength, so that the strength of an antitheft door can be increased; meanwhile, the polyurethane foam has an excellent sound insulation effect, so that the problem of sound insulation of the antitheft door can be completely solved; a layer of polyurethane coating is sprayed on the outer layer of the polyurethane antitheft door plate, so that the antitheft door can be prevented from deforming, becoming damp, discoloring and being abraded, and the problem of rusting of the antitheft door which is made of steel, copper and the like can be solved.

Description

technical field [0001] The invention belongs to the field of novel boards, in particular to polyurethane anti-theft door boards. Background technique [0002] At present, many security doors used in the market are empty inside, without any filling materials. In order to improve the compressive strength of the door body, some anti-theft door manufacturers add multiple reinforcing ribs inside the door, which not only increases the process but also increases the cost. However, some problems of poor compressive strength still exist. Secondly, because there are many solder joints, the flatness of the anti-theft door body cannot be guaranteed, which affects the surface quality and the quality of the door body is low. Because it is assembled and filled, there are gaps in the door, and the sound insulation effect is not good. It also needs to be glued to the iron sheet of the door, which is inefficient and ineffective. Among the current anti-theft doors, anti-theft doors such as s...

AI Technical Summary

Problems solved by technology

In order to improve the compressive strength of the door body, some anti-theft door manufacturers add multiple reinforcement ribs inside the door, which not only increases the process but also increases the cost. However, some problems of poor compressive strength still exist

Secondly, because there are many solder joints, the flatness of the anti-theft door body cannot be guaranteed, which affects the surface quality and the quality of the door body is low

Because it is assembled and filled, there are gaps in the door, and the sound insulation effect is not good. It also needs to be glued to the iron sheet of the door, which is inefficient and not effective.

Among the current anti-theft doors, anti-theft doors such as steel and copper are prone to rust after being used for a long time. Affect the quality of the door, but also affect the beauty of the door body

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