Method for preparing waterproof cone of loudspeaker

Abstract

The invention provides a method for preparing a waterproof cone of a loudspeaker, and relates to the technical field of loudspeakers. The method comprises the following steps: first, preparing pulp suspension: the pulp suspension comprises the following components in weight ratios: 60%-70% of plant fibers, 3%-5% of dye, 1%-3% of melamine resin, 10%-15% of barium sulfate, 6%-10% of aluminum sulfate and 1%-3% of rosin; second, picking up the pulp, and carrying out hot press molding, wherein the pulp suspension flows into a 50-mesh or 100-mesh copper wire gauze to be adsorbed on the copper wire gauze, picking up the pulp for forming, and carrying out the hot press molding by using a paper machine; and third, gluing and punching; spray coating an acrylic polyester waterproof agent on the surface of a cone formed by the hot press molding, drying the cone and punching the cone to form the same. The method provided by the invention has the beneficial effects that by adopting the method for preparing the waterproof cone of the loudspeaker, the prepared cone is good in toughness, strong in waterproof ability and low in preparation cost.

Description

technical field [0001] The invention relates to the technical field of loudspeakers, in particular to a method for manufacturing a moisture-proof paper cone for loudspeakers. Background technique [0002] The possible weakness of the paper cone is that its characteristics will change with the humidity of the environment. After the paper absorbs moisture, its density will become higher (heavier) and its rigidity will become weaker (softer), so the characteristics of sound generation will also be affected; If the number of wet and dry cycles of the paper cone increases, it may cause the fatigue of the material itself, and then change its original characteristics. Contents of the invention [0003] The object of the present invention is to provide a method for manufacturing a moisture-proof paper cone for loudspeakers in view of the defects and deficiencies of the prior art. [0004] For realizing the above object, the technical scheme that the present invention adopts is: i...

AI Technical Summary

Problems solved by technology

[0002] The possible weakness of the paper cone is that its characteristics will change with the humidity of the environment. After the paper absorbs moisture, its density will become higher (heavier) and its rigidity will become worse (softer), so the characteristics of sound generation will also be affected; If the number of wet and dry cycles of the paper cone is too high, it may cause the fatigue of the material itself, and then change its original characteristics