Patent ID: 9610714
Date: 2017-04-04
CPC Classifications: B01D,B21F,B29C,B29K

Claim:
1. A process for the manufacture of thin-walled elastoporous elements in the form of bushings in metal-rubber material (MR), comprising the following steps: obtaining wire fragments comprised of a wire material having a wire cross-section, in the form of spiral segments; forming a flat blank from said spiral segments; pressing the flat blank in a direction perpendicular to a blank plane, where ρ C is an average density of the MR material in the finished bushing, winding the pressed flat blank at least in 3 layers on an elastomer cylinder with such a tension that ensures an outer diameter of a roll obtained is equal to the diameter D placing the roll into a mold providing the manufacture of a bushing blank with its average density greater than that of the compressed flat blank by 1.3 to 2.2 times, with an internal diameter D wherein the final pass of the bushing blank pressing is carried out to the value of average density ρ C greater than ρ Π , but less than 0.8ρ; placing elastic elements inside said roll; pressing the roll in several passes by axial compression together with the elastic elements transforming the axial compression into radial pressure on the roll to be compressed.