Q:What is the difference between solid wood composite board and plywood?

Process difference: multi-layer solid wood flooring and each slice will adopt scientific elimination of internal stress, arranged in a crisscross pattern, at present, the layers from the 7 layer to the 9 layer, 11 layer range; and general splint or plywood layers according to needs, relatively less in the balance of internal stress on the demand is far better than multi-layer solid wood this is our floor strictly, the daily common splint or plywood bend reason.

Q:What is the difference between multi-layer solid wood flooring and plywood?

In addition to plywood, multilayer solid wood flooring also needs special paint, finishing panels (usually rare species), backplane and so on. Secondly, multi-layer parquet product in the precision, appearance quality, surface treatment than plywood strict, such as paint, plywood surface sealing process, GB is not required, and pay attention to the multilayer parquet surface coating adhesion and surface abrasion resistance. These differences also lead to the two in the production cost is not quite the same. In general, the manufacturing cost of plywood per square meter is only 10%-20% of the cost of solid wood composite flooring

Q:How much is it per square metre to be decorated with plywood?

The principle of symmetry principle: single center plane plate on both sides of the water, both species veneer thickness, layer, manufacturing method, fiber direction and single board rate should correspond with each other, which is symmetrical on both sides of the center plane of each layer corresponding to the principle of plywood in different direction stress phase etc.. Therefore, when the change of veneer moisture content, its stable structure, no deformation, cracking and other defects; on the contrary, if the symmetry center plane of corresponding layer there are some differences, will make the center plane on both sides of single board stress is not equal, the deformation and cracking of plywood. Principle of odd number layer: because the structure of plywood is adjacent layer, the fiber direction of single board is perpendicular to each other, and must accord with symmetry principle, so its total number of layers must be odd number. Such as: three laminates, five laminates, seven laminates and so on. When the odd ply plywood is bent, the maximum horizontal shear stress acts on the central veneer to make it have greater strength. Even when the plywood is bent, the maximum horizontal shear stress acts on the adhesive layer, not on the veneer. It can destroy the adhesive layer and reduce the strength of plywood.

Q:Pressing process of plywood

The usual length and width specifications are: 1220 * 2440mm, and thickness specifications are generally: 3, 5, 9, 12, 15, 18mm and so on. The main tree species are: camphor trees, willow trees, poplar trees, eucalyptus trees and so on. The main sources of plywood: Indonesia and Malaysia

Q:What kind of glue does bamboo plywood use in general?

Water soluble phenolic resin adhesive is usually used. Water soluble phenolic resin adhesive is one of the most important types of insoluble phenolic resin adhesive. The component of free phenol content is low (usually <2.5%), less harm to human body, and a water soluble phenolic resin can save a large amount of organic solvent, easy cleaning in coating operation, so it is widely used in wood processing industry. The binder is mainly used for bonding wood.Bamboo plywood is made of bamboo with groove and equal thickness bamboo as its unit, and bamboo is made by rolling and planing. Bamboo plywood can be used as an ordinary structural board, and also can be used as the floor of a car by the length and surface treatment of sheet metal

Q:Is solid wood composite floor plywood made of plywood?

, and no death. And requires the same moisture content per layer, otherwise it will deform and warp. Solid wood composite flooring with glue is also very particular, and its environmental performance, bonding strength, impregnation, peeling and other physical indicators are much higher than plywood.

Q:Desulfurization absorption tower anticorrosive lining glue, specifications have stipulated, rubber board need sampling?

There shall be no leakage glue brushing brush, and each layer of mortar and its adjacent layers in the brush should be arranged in a crisscross pattern, and manufacturers should consider each layer of glue between color should have greater contrast, so it is easy to check out the leak brush. The year of the mucilage must be moderate, the viscosity of the mucilage is too large, and the appearance of the drying of the film is easy to appear. The surface of the adhesive film has dried and the inner solvent has not been volatilized, and the rubber plate will blister when it is vulcanized. In brushing the next mortar, we must ensure that the last glue has basically dried. In addition, the need to pay attention to the coefficient of thermal conductivity of rubber plate and steel shell is not the same, but the need to ensure that both the dry mortar and reach the rubber lining, so the glue coating time sheet in advance, and the steel shell glue coating should be slightly lag.

Q:How are the plywood made?

Principle of odd number layer: because the structure of plywood is adjacent layer, the fiber direction of single board is perpendicular to each other, and must accord with symmetry principle, so its total layer number must be odd number. Such as: three laminates, five laminates, seven laminates and so on. When the odd ply plywood is bent, the maximum horizontal shear stress acts on the central veneer to make it have greater strength. Even when the plywood is bent, the maximum horizontal shear stress acts on the adhesive layer, not on the veneer. It can destroy the adhesive layer and reduce the strength of plywood.

Q:How to distinguish between good and bad construction wood board?

Same specification1. look at raw materials. The raw material monoliths and scrap.2. glue. Phenolic resin. Three amine gel. Glue (glue urine)The simplest test: take a 10cm*10cm sample and cook it. It is easy to open plastic goods (less than 30 minutes)Boil for 1 hours.Boil for more than 3 hours, even if the good

Q:What is copper paper or rubber paper?

The old saying "offset paper paper", mainly for offset (offset) using a printing press or other printing machine higher-level color printing, suitable for printing monochrome or multicolor covers of books, text and pictorial, inserts, maps, posters, color trademarks and a variety of packaging products. The offset paper is divided into special number, No. 1 and No. 2 and No. 3 according to the proportion of paper size, and has higher strength and printability. There are single and double points, as well as super pressure and ordinary light pressure two grades. Offset printing is more advanced books and periodicals, printing paper, contrast, flexibility and surface strength of higher requirements, pH should be close to neutral or weak alkaline, so as not to affect the printing of paper,