Design Of Fiberglass Pultruded Doors And Windows Profiles Mould

Requirements Of Pultrusion Mould:

Characteristics of pultrusion mould heating curing products is continuous molding, mold long-term in a heated state, some block mold production failure and product replacement cleaning need disassembling the mould. The process characteristics of such requirements pultruded mould has good dimensional stability. When impregnated resin, glass fiber is pulled into the mold, the volume reduction associated with pultrusion phenomenon, fiber bundles on the cavity surface normal stress increases, leading to increased friction, the mould is always in the extrusion and friction state, this requires the pultrusion die with excellent wear resistance. Pultrusion, impregnated resin fiber beam side heating curingreaction, on the side of the traction device under the action of the die before moving along,products of the surface by friction effect of dynamic. In order to get the product with good surface quality, it requires smooth surface of pultrusion mould with, even to a mirror effect.

Selection Of Mould Material:

Mould material directly affect the mould performance, thereby affecting the quality and yield of pultruded profiles. Because of high precision mould, complex processing, long manufacturing cycle, high cost, the molud should have longer service life. General mould material is required to have the following properties:

(1) high strength, fatigue resistance and wear resistance;

(2) higher heat resistance, deformation resistance of low thermal;

(3) good corrosion resistance;

(4) cutting and polishing the surface of good performance.


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