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Factors Affecting The Quality Of Plywood

Dec. 24, 2019

Today, Hot Press Machine Supplier will introduce the factors that affect the quality of plywood.


1. Adhesive quality

It is characterized by several square mites, such as the performance of synthetic resin adhesives for rubber, the mixing of various components, and the mixing process. In recent years, many domestic researches have been done on the components of plywood glue and the mixing process. This not only saves many chemical raw materials, reduces product costs, but also improves product performance. This is a sign of technological progress. Only the synthetic resin used in the production has good performance, sufficient adhesive strength, reasonable distribution ratio of each group of adhesives, stable performance of the prepared adhesives, suitable resin content and viscosity, and a sufficiently long active period to ensure normal operation and products. The indicators meet the requirements.


2. Veneer quality

The veneer quality, especially its surface state, has a great influence on the bonding strength. The quality of the veneer should be paid enough attention in the preparation of the wood blocks and the various steps of the Vener Rotary Cutting Machine. The softening of the wood should be well performed. The conditions of the veneer should be controlled to make the indicators of the veneer at a better value. At the same time, the veneer must be water rate and flatness.


3. Plywood

Attention should be paid to the two aspects of sizing amount and slab aging before glue pressing. If the amount of glue is too large, the cost is high; and if the glue layer is too thick, the internal stress increases and the glue is easy to penetrate at the same time. The aging time should be appropriate and change reasonably with climate change. It is necessary to realize the core board unification and reduce the core board lamination and separation. Attention should be paid to mastering the speed and pressure reduction of the rubber bead, especially the more moisture in the slab.


In addition, new technologies and new equipment are used, such as the use of high-efficiency air-jet veneer dryers, core board stitching machines, and core board levelers to achieve continuous operations of sizing, blank assembly, pre-pressing, and hot pressing. Quickly closing the Plywood Hot Press Machine, etc., can accurately control the process conditions and make the product quality more guaranteed.

Plywood Hot Press Machine

Plywood Hot Press Machine


In addition, we can share the maintenance methods of plywood for you:

1. Plywood furniture should be placed smoothly to prevent damage to the mortise structure.

2. Do not expose the plywood to sunlight to prevent deformation.

3. It should not be placed in a humid and ventilated place, otherwise it will be susceptible to moisture expansion and deterioration.

4. For the large wardrobe and other furniture, the top of the cabinet cannot be put on heavy objects, otherwise the door frame will be easily deformed.

5. If there is a crack in the plywood furniture, apply putty and paint to mix it evenly to prevent the crack from extending and expanding.

6. When cleaning the surface of plywood furniture, do not wash it with alkaline water or boiling water to prevent damage to the paint surface.

7. If the surface of furniture is stained with alkaline water or stains, wipe it off with water in time, and then polish it with light wax.


The above are the factors affecting the quality of plywood introduced by the hot press manufacturer. Now everyone should know something about plywood, right? In fact, there is a difference between the front and back of the plywood. When selecting, the plywood should have clear wood grain, the front surface should be smooth and smooth, not rough, and flat and without stagnation. When buying multiple plywood, you should choose the wood grain and the color is similar. Of course, plywood should not have defects such as breakage, bruises, bruises, scars, etc., and there should be no decay or degumming; it should be known that some plywood is made by pasting two veneers with different textures together. Therefore, when choosing a plywood, pay attention to the tightness of the splicing joints, and there should be no unevenness; when selecting the plywood, pay attention to the plywood that does not loose the glue. If the sound of the plywood is fragile when it is knocked by hand, it proves that the quality is good. If the sound is stuffy, it indicates that the plywood has loose glue; choose environmentally friendly plywood and pay attention to its formaldehyde release. Not only that, consumers should also buy high-quality environmentally-friendly brand plates, and the quality of brand plates is guaranteed, and after-sales are also guaranteed.

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