In modern furniture manufacturing and architectural decoration, engineered wood has gradually become an important material choice due to its unique advantages. However, the surface treatment technology of engineered wood has a crucial impact on its final performance and application effect. This article will introduce several common engineered wood surface treatment technologies in detail.
I. Coating Technology
1. Spraying
Spraying is a common surface treatment method, in which paint is evenly applied to the surface of engineered wood using a spray gun. This method is simple to operate and suitable for large-area, rapid processing.
Commonly used paints include polyurethane lacquer and nitrocellulose lacquer, which provide good gloss and abrasion resistance.
2. Dipping Coating
Dip coating involves immersing the engineered wood in paint, causing a uniform coating to adhere to its surface. This method is suitable for areas with complex shapes or those difficult to spray.
After dip coating, the engineered wood needs to be dried to ensure the curing and adhesion of the coating.
II. Machining Technology
1. Sanding
Sanding involves using sandpaper or a grinding wheel to polish the surface of engineered wood, removing burrs and uneven areas to improve surface smoothness.
Multiple sanding passes using different grit sandpaper can be performed to achieve the desired surface finish.
2. Carving
Carving involves engraving various patterns or textures onto the surface of engineered wood, enhancing its aesthetics and artistic appeal.
Carving can be done manually or with a CNC carving machine; the latter offers higher precision and efficiency.
III. Chemical Treatment Technology
1. Staining
Staining involves penetrating dye into the engineered wood to change its color. This method can create a rich variety of colors.
Degreasing treatment is usually required before staining to improve dye penetration and uniformity.
2. Preservative Treatment
Preservative treatment involves treating engineered wood with chemical agents to prevent microbial attack and decay.
Commonly used preservatives include copper chromium arsenide (CCA), but environmental protection requirements must be considered.
IV. Physical Modification Techniques
1. Heat Treatment
Heat treatment alters the physical properties of engineered wood, such as density and hardness, through heating. This method improves the stability and durability of engineered wood.
During heat treatment, temperature and time need to be controlled to avoid excessive carbonization or deformation.
2. Freeze-Treatment
Freeze-treating involves placing engineered wood in a low-temperature environment, causing its internal moisture to freeze and expand, thereby altering its structure. This method increases the strength and toughness of engineered wood.
After freeze-treating, slow thawing is necessary to prevent cracking.
In summary, there are various surface treatment techniques for engineered wood, each with its unique advantages and applicable scenarios. By rationally selecting and applying these techniques, the performance and appearance of engineered wood can be significantly improved, meeting the needs of different fields.
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Company Name: Shandong Kaiyuan Wood Industry Co., Ltd.
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Country: China
Website: https://www.kaiyuanwood.net/
