Due to the characteristics of solid wood door and solid wood composite door, the owner can check the appearance quality of the wooden door according to the technology adopted by the wooden door when purchasing the wooden door, so as to avoid buying defective products.
So what are their possible flaws?
According to experts, the surface of the solid wood door and the solid wood composite door is wood or decorative veneer, the difference is that the solid wood door is painted directly or not on the wood, while the solid wood composite door is painted on the decorative veneer.
According to the manufacturing process of these two types of doors, their appearance quality defects include two parts: one is the defect of wood or veneer (solid wood composite door layer) itself, and the other is the defect of paint, which is mainly shown in the following aspects.
Cracks: longitudinal cracks and ring cracks.
The longitudinal crack direction penetrates the wood texture and extends gradually; the ring crack mostly occurs between the wood textures and generally does not extend.
Wormhole: that is, the eye that is left after the worm is eaten.
After the wood is artificially dried, the moths are dead, and there will be no further development, but the existence of insect eyes will affect beauty.
Texture: the texture of good wood is regular, such as the texture is disorganized or the wood door with inverted silk flow is of lower grade.
Decay: Wood tissue necrosis, mildew, discoloration, resulting in loose texture and reduced strength.
Glue penetration: after the veneer is hot-pressed and glued, the adhesive leaks out the outer surface of the veneer from the pores of the veneer and forms glue spots. Its adverse effect is that spots may occur on the workpiece surface after painting.
Bubbling: bubbling is that the veneer bulges and bubbles after gluing, and its repair process is more troublesome, which greatly affects the production efficiency.
Cracking: refers to the gap larger than 0.3mm on the surface of the veneer after pasting, which often occurs in the veneer with large deformation or splicing, which is also a common defect in the veneer bonding process.
Glue deficiency: refers to the local lack of adhesive or discontinuous adhesive layer between the substrate and the veneer after hot pressing, which is mainly caused by uneven coating or low viscosity of the adhesive.
Solid wood doors can not be made of the same material.
In the impression of many people, buying solid wood doors must be solid wood doors made of the same material, such as cherry wood doors, but in fact, solid wood doors may not be made of the same material.
According to the wood door industry standard compiled by China Forestry products Industry Association, solid wood door refers to the wooden door made of solid wood or integrated wood of the same tree species or similar nature.
According to Wu Shengfu, director of the marketing department of the China Forestry Industry Association, from the concept of solid wood doors, there is no strict requirement that solid wood doors must be the same tree species, but that the materials are similar, such as similar density.
If the material difference is too big, especially the difference of dry shrinkage and moisture expansion is too big, it is easy to warp, bulge and crack, and it is difficult to guarantee the quality of the wooden door.
As far as the products on the market are concerned, solid wood doors may also be made of laminated wood (that is, glued wood, which is made of plank, small square wood, etc., which are basically parallel to the fiber direction in the direction of length, width and thickness).
The solid wood door panel may not be the same tree species, or the door cover may not be the same tree species.
According to the industry standard, the door frame is the door cover-"A frame-shaped wooden member fixed at the opening of the wall door, supporting the movable door leaf and installing the fixed door leaf, which is composed of a frame, an upper frame and a decorative board."
Therefore, the door frame and door leaves belong to the prescribed scope of solid wood doors, but even if the use of different tree species, the nature must be similar.