Hole sealing device and technology for hole-foam high-molecular-polymer foam core material surfaces

Abstract

The invention discloses a hole sealing device and technology for hole-foam high-molecular-polymer foam core material surfaces. The hole sealing device comprises a driving device, a heating system, a servo thicknessing system, a cooling system and an electrical control system, heating, thicknessing and cooling functions are achieved, and the continuous production aim is achieved; the technology isbased on the device, setting of the heating temperature of 210 DEG C to 230 DEG C, setting of the running speed of 0.5 m/min to 3 m/min, setting of a thickness loss value of 0.5mm to 4 mm and wind-airmixing spraying cooling are carried out; hot melting with the certain thickness on the surfaces of foam core materials is lost and recrystallized, and therefore simultaneous hole sealing of the uppersurface and the lower surface is achieved. According to the method, on the premise that the mechanical performance of the foam core materials is not changed, it is achieved that in the composite-material vacuum pouring technology of the foam core materials, the absorbing amount of resin on the upper surfaces and the absorbing amount of resin on the lower surfaces of the foam core materials are reduced, and the glue absorbing capacity of 1,300 g/m<2> to 1,900 g/m<2> of two pieces of surface resin before hole sealing is reduced to be the glue absorbing capacity of 400 g/m<2> to 900 g/m<2> of two pieces of surface resin after hole sealing.

Description

technical field [0001] The invention relates to the technical field of foam core material processing, in particular to a device and process for sealing holes on the surface of a cellular high molecular polymer foam core material. Background technique [0002] The foam core material, polyethylene terephthalate (PET), has good heat resistance and static and dynamic mechanical properties. It is a closed-cell foam material, but due to the limitation of foam technology, its cell size is generally large , while the traditional thickness cutting generally uses a cross-cutting band saw, openings will be formed on the surface of the foam after cutting and the pore size is large. The absorption of the resin mainly occurs on the cutting exposed surface of the core material, and the resin will fill the exposed rough surface. This results in increased resin uptake, posing weight and cost challenges to the final product. [0003] In the traditional process, facing the problem of being un...

AI Technical Summary

Problems solved by technology

[0009] A. The cutting speed is too slow. Compared with cross-cutting, according to the cutting speed of 1000-1500mm/min, hot wire cutting cannot meet the requirements of mass production and supply;

[0010] B. How to control the thickness of the finished product will be a huge challen

Images