Factors affecting the processing quality of birch veneer

Factors affecting the processing quality of birch veneer

Birch veneer manufacturers say that in order to ensure the quality of birch veneer, the following factors need to be paid attention to in the process of processing:

1) quality assurance in the process of planing and cutting: several aspects that need to be paid attention to in the production process are to avoid the occurrence of various defects, such as stuttering, cracking, blackheart, etc. These defects can be avoided by manual adjustment in the production process. The processing defects require the production personnel to check the quality of the veneer at all times during the production, and make adjustments, such as internal cracks, knife marks, famine, etc.

2) log sawing and cooking: the quality of log sawing directly determines the wood yield and the change of wood texture, so when sawing, attention should be paid to the change and standard of log defects. Cooking plays an extraordinary role in the quality of veneer. Both the color and layout quality of veneer are very important. Moreover, log cooking has a great impact on the smooth cutting of veneer. The cooking water temperature and time should be strictly controlled. Heating, heat preservation and cooling should be strictly in accordance with the operation standards.

3) selection of planed veneer logs: not only in the process of veneer processing, but also in the source of wood. The quality of wood directly determines the quality of veneer. The bending, knotting and decaying of raw materials are not allowed in the production materials of veneer, especially the decayed raw materials. Therefore, when purchasing wood, strict selection is required to ensure the quality of veneer.

4) mining and preservation of wood: because the mining of logs is sometimes limited, it is important to choose the right time when logging. Therefore, in a certain period of each year, the wood needed for the whole year’s production will be prepared. Therefore, the preservation of the raw wood for veneer planing before production is also very important. If it is not properly preserved, resulting in wood drying or qualitative change, it will become waste wood. The raw materials shall be watered 24 hours a day to keep the moisture content of the wood, so as to ensure that the color of the produced veneer will not change. However, it is also necessary to pay attention to the fact that the veneer cannot be stored in the log yard for too long, and it will be soaked, and the peeled veneer will be dead and mottled.

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