公开(公告)号：US20200223118A1

公开(公告)日：2020-07-16

申请号：US16831386

申请日：2020-03-26

Applicant: OTRAJET INC.

Inventor： FA-SHEN CHEN

IPC: B29C48/00 ,  B29C48/285 ,  B29C44/34 ,  B29C48/255 ,  B29C48/92

Abstract: An extruding system includes a melting unit configured to convey a polymeric material, a mixing unit configured to mix the polymeric material with a blowing agent to form a mixture, an injection unit configured to inject the mixture, a first flow control element disposed between the melting unit and the mixing unit, and a second flow control element disposed between the mixing unit and the injection unit. A method of extruding includes conveying a polymeric material from a melting unit to a mixing unit, conveying a blowing agent into the mixing unit, mixing the polymeric material with the blowing agent to form a mixture, conveying the mixture from the mixing unit to an injection unit, and discharging the mixture from the injection unit, wherein flow of the polymeric material is controlled by a first flow control element, and flow of the mixture is controlled by a second flow control element.