Pultrusion
automatic production process & continuous mold production in which reinforcement materials such as roving and felt on the yarn frame are impregnated through the heating mould with fixed cross-section shape through continuous traction of traction device, and then solidify and form in the mold, so as to realize
produce composite materials with specific cross-section shape and length, such as pipe, bar, groove profile, I-section, square profile, etc.
advantages:
1) highest production efficiency
2) highest raw material utilization rate of pultrusion products, generally more than 95%
3) low cost, good performance, stable quality and beautiful appearance
4) The longitudinal and transverse strength of the products can be adjusted arbitrarily to meet the requirements of different products, and the length can be cut according to the need
Disadvantages:
product shape is monotonous, only linear profile can be produced, and the transverse strength is not high
Typical products are: channel steel, I-beam, solid and hollow core rods of various shapes, subway shield, base plate, sucker rod, grille, insulating rod, fishing rod, tent pole and electrical ladder, etc.
