Low-cost Keruing timber degreasing method

Abstract

The invention provides a low-cost Keruing timber degreasing method, which comprises the steps as follows: Keruing timbers are arranged into a steaming vat; then fresh water is filled in the steaming vat and heated so that the internal temperature of the Keruing timbers can reach a target temperature; then heating is stopped and the surfaces of the Keruing timbers are cleaned after natural cooling; then the Keruing timbers are discharged out of the vat and are processed into blank materials and dried so that the grease in the blank materials can be volatilized and seeped; after the grease is seeped, the surfaces of the Keruing timbers are wiped by organic solvent to dissolve and remove the grease; then the Keruing timbers are piled until the surfaces of the Keruing timbers are dry to remove the surface grease grains and finally achieve the purpose of degreasing. The low-cost Keruing timber degreasing method is simple to operate, has low cost, can not pollute environment and has obvious degreasing effect. The degreased Keruing is hard to warp and crack, etc. Moreover, the paint adhesion of products is strong; the excellence and occupation coefficient of the Keruing timbers are greatly improved.

Description

technical field [0001] The invention relates to a method for degreasing wood, in particular to a low-cost method for degreasing dipterocarp wood. Background technique [0002] Dipterocarpus wood, scientific name, Dipterocarpus spp., commonly known as Dipterocarpus spp., is distributed in Southeast Asia. The air-dry density of this wood is 0.7~0.8g / cm3, the heartwood is grayish reddish brown to reddish brown, the wood luster is weak, and often has a resinous smell; the texture is usually straight; the structure is slightly thick and uniform, with few natural defects and high yield; It has the advantages of easy coloring, decay resistance, and strong nail holding power. The mechanical index is close to that of teak, and its stiffness is 25% higher than that of teak. It is a precious timber tree species in tropical areas and can produce high-quality large-diameter industrial timber. However, dipterocarp wood contains a large amount of resin, and resin overflows at high tempera...

AI Technical Summary

Problems solved by technology

However, dipterocarp wood contains a large amount of resin, and resin overflows at high temperature, blocking the wood pipe, causing uneven evaporation of internal water during the drying process, slow drying speed, easy to produce warping and cracking after drying, and poor paint adhesion of the product , the paint film is easy to peel off, which seriously affects the apparent quality of the floor and the paint effect of the board surface, and at the same time affects the market sales of the product and the use of users

In the traditional process, in order to ensure the paint adhesion and surface effect, most manufacturers can only use NC paint (nitro paint), resulting in high manufacturing costs and difficult for consumers to accept; a small number of manufacturers use PU paint ( Polyester paint), but after using PU paint, it cannot be dried, and can only be dried naturally, resulting in low production efficiency and poor quality