Opening structure and compound hole combined type flexible sound absorbing product

Abstract

The invention relates to an opening structure and compound hole combined type flexible sound absorbing product. Firstly, wastes and leftover materials of rubber and plastic products are smashed to particles with particle size of 1-1.5 mm; then the smashed rubber and plastic particles are mixed with 802B glue by the weight ratio of 10: 1, and are evenly stirred for 4-5 minutes by a mixer; the mixture is added in a pressing mold according to the ratio of 150 Kg / m3 by the volume of the needed flexible sound absorbing product; the pressure of a mold pressing head is 4 kg / cm2; when the thickness of the needed flexible sound absorbing product is realized through pressing, the pressure of the head is kept for 20-30 minutes; finally, the flexible sound absorbing product formed through mold pressing is taken out, flatly spreads for 24 hours, and is trimmed and packaged after being dried.

Description

[0001] technical field [0002] The invention relates to a rubber-plastic flexible sound-absorbing product, in particular to a flexible sound-absorbing product with an opening structure combined with composite holes. Background technique [0003] Traditional flexible sound-absorbing products are usually produced with a regular structure of the whole board, but in the case of use or special production structure requirements, the whole board structure needs to be processed twice, such as: opening holes, sinking holes, and cutting corners, etc., which will generate a lot of Waste and leftover materials, waste and leftover materials cannot be reused, which virtually increases the cost of production and use; and the secondary processing needs to reposition the size and position, requiring high production precision, increasing the difficulty of processing, and affecting the appearance quality of the product. Contents of the invention [0004] Aiming at the waste of rubber and pl...