Preparation process of modified wood for solid-wood door and window frame

Abstract

The invention discloses a preparation process of modified wood for a solid-wood door and window frame. The preparation process comprises the steps of: firstly, pre-drying a material, wherein a log section is sawn into a material with a required specification to ensure that the water content is reduced to be below 25 percent; secondly, modifying the material, wherein the dried material is completely immersed in a reinforced low-molecular resin prepolymerized liquid with a certain concentration to be subjected to dipping treatment; thirdly, drying the immersed material at low temperature to ensure that the water content is reduced to be below 25 percent so as to obtain a modified material; fourthly, sizing resin of the modified material, wherein the resin inside the modified wood is cured and sized. By adopting the mode, according to the preparation process of the modified wood for the solid-wood door and window frame, disclosed by the invention, fast-growing wood is modified by adopting the reinforced low-molecular resin prepolymerized liquid to ensure that a modifying agent is filled inside the fast-growing wood, therefore excellent mechanical property, dimensional stability and durability are endowed to products, the service life of the products is prolonged, the quality of the products is improved and the use value is increased.

Description

Technical field [0001] The invention relates to the field of wood processing, in particular to a preparation process of modified wood for solid wood door and window frames. Background technique [0002] In the timber industry, in addition to natural forests, more than half of the timber resources come from a large number of fast-growing and high-yield forests. Fast-growing timber contains a large number of young woods with low material maturity, such as poplar, fir, masson pine, and eucalyptus. This kind of wood has soft material, low density, poor mechanical properties, and poor material uniformity. The solid wood door and window frames made directly from it have poor product quality, easy to warp and deform, poor structural performance, low appearance quality, and short service cycle , Its practicality is not impressive. Summary of the invention [0003] The main technical problem solved by the present invention is to provide a preparation process of modified wood for solid woo...

AI Technical Summary

Problems solved by technology

[0002] In addition to natural forests, more than half of the wood resources in the wood industry come from a large number of fast-growing and high-yield forests. Fast-growing wood contains a lot of young wood with low material maturity, such as poplar, Chinese fir, masson pine, and eucalyptus. This kind of wood is soft, low density, poor mechanical properties, and poor material uniformity. The solid wood door and window frames directly made of it have poor product quality, easy warping deformation, poor structural performance, low appearance quality, and short service life. , its practicality is not considerable