XPS foam insulation board production processXPS foam insulation board production process
1. Multi-component mixing system
The fully automatic computer controls the ratio of various raw materials, adopts the weightless measurement method, and strictly compiles the mixed raw materials according to the settings, laying the foundation for the production of high-end quality products. The feeding system uses vacuum feeding to ensure the stable delivery of raw materials.
2. Extrusion system
The CO2 XPS extrusion system uses a parallel twin-screw extruder with a screw building block structure and is used in combination according to the processing technology of the material. Specially designed connection method, the transmission device enhances the strength of the threaded element and the mandrel, and achieves uniform dispersion of materials and good mixing.
3. Cooling and constant temperature system
The proportional control cooling system is equipped with a high-power chiller to ensure a good cooling effect and meet the stringent requirements of the cooling system in the production process.
Coextrusion foam board 5a
4. Supercritical CO2 blowing agent injection system
The supercritical CO2 foaming agent injection system is a utility model patented product developed by our company. It uses a fully imported flow control system to control the instantaneous volume flow and mass flow of the foaming fluid, and design a closed-loop control program to maintain the stability of the mass flow. The unique three-stage pressurized injection system maintains a stable CO2 liquid state, ensures the formation of a homogeneous system, and uses an automatic flow feedback control system to maintain the stability of the blowing agent flow.
5. Extrusion die, sizing system
According to the rheological characteristics of PS physical foaming material at low temperature and high viscosity, the extrusion die adopts T-shaped large manifold, long fan-shaped regional head to build pressure extrusion, constant temperature control of circulating system oil, and PID intelligent temperature control module to form a closed-loop control system , The mold temperature can be controlled within the process requirements. The bidirectional electric adjustable device of the molding system, proportional control of low resistance system materials, double-sided shaping.
6. Fixed length cutting and conveying system
Online post-processing system, after cooling and forming products, automatic fixed-length cutting, trimming, vertical and horizontal edge forming, automatic stacking, multi-point monitoring, automatic alarm, automatic packaging system.