Processing technology of sandwich balsa wood material for large fan blades

Abstract

The invention discloses a processing technology of a sandwich balsa wood material for large fan blades. The processing technology comprises the following steps of preparation before processing, polishing of square timber, dust removal of the square timber, drying after coating on the surfaces of the square timber, shallow grooving of the square timber, punching in the square timber, cloth stickingof the square timber, film coating treatment on the surfaces of the square timber and post-treatment processing on the square timber. The processing technology of the sandwich balsa wood material forthe large fan blades relates to the field of processing of sandwich balsa wood materials, and has the beneficial effects that the water content is controlled to be 20% or below before processing, cracking and deformation of wooden products processed later can be avoided, the density of the timber can be controlled through pressure squaring, and related requirements are met; the surfaces of the square timber is coated and then dried, smeared preservative and smeared treating fluid can better permeate into the square timber at the temperature for drying, and therefore the better effect is achieved.

Description

technical field [0001] The invention relates to the processing field of a sandwich balsa wood material, in particular to a processing technology of a large fan blade sandwich balsa wood material. Background technique [0002] Wood has the advantages of light weight, high strength-to-weight ratio, good elasticity, impact resistance, rich and beautiful texture and color, and easy processing. It has been listed as an important raw material since ancient times. Wood processing has low energy consumption, less pollution, and renewable resources. , also occupies an important position in the national economy. Now the products are used in wood products such as building components, furniture, vehicles, ships, stationery, packaging containers, etc., as well as wood-based products such as various wood-based panels, glued wood, etc., so that the wood industry has formed an independent industrial system. Sand wood is one of the fastest growing trees and the lightest wood in the world. Al...

AI Technical Summary

Problems solved by technology

However, there are certain disadvantages in the existing balsa wood processing. First, the preparation before processing is relatively simple. If the water content is not well controlled, it will affect the processing quality in the later stage. The coating and drying treatment is relatively simple, and the coating is not easy. embalming and drying