Plastic-bamboo composite tube coiled forming technology method

Abstract

The invention relates to a bamboo-plastic composite pipe rolling forming technique, which solves a problem that present bamboo-plastic composite pipe centrifugal casting has the defects of easy offset and exposure, loose bamboo filling materials, low content, etc. The specific processing steps are to cut bamboo materials into bamboo long strips, on which degreasing, dehydration and surface active agent activation treatments are implemented. A mat bamboo weaved object are precast. Resin mortars are evenly coated on the mat bamboo weaved object. Silicon oil demould agent is coated on the outer surface of the mould pipe. More than one layer of the mat bamboo weaved object is helicoidally tensioned and winded on the mould pipe and is heated and solidified for forming. Then, the object is cooled to the room temperature and is demoulded to obtain the bamboo-plastic composite pipe. The manufacturing process condition requirements of the invention are relative simple. The compactness of the bamboo filling materials is greatly improved. The strength and the rigidity of the pipe are improved. And the content of the bamboo materials reaches to 50-70 percentage, which is beneficial to the further lowering of the cost. The invention is especially applied to the production of pipe products with large diameter.

Description

technical field [0001] The invention relates to a preparation process of a bamboo-plastic composite material, in particular to a rolling forming process of a bamboo-plastic composite pipe. Background technique [0002] Existing plastic pipe production mainly includes several methods of extrusion, winding and centrifugal casting. The centrifugal method is mainly used in the production of reactive plastic pipes, such as the production of sand-filled glass steel pipes and modified MC nylon pipes, and the production of bamboo-plastic composite pipes in the patent ZL 03 2 59654.5, in which modified MC nylon pipes and sand-filled glass steel pipes are produced. The pipe production process is complicated and the cost is high; while the centrifugal casting of bamboo-plastic composite pipes has the problems that the bamboo skeleton is easily biased and exposed, and the loose content of the bamboo filling material is low, which affects the industrial production efficiency and product ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of the existing bamboo-plastic composite pipe centrifugal casting that the bamboo skeleton is easily biased and exposed, and the loose content of the bamboo filling material is low, and to develop a bamboo-plastic composite pipe product with high compactness, strength and rigidity. Good quality, high bamboo material content, relatively simple technical requirements for bamboo-plastic composite pipe rolling molding process