Usually, the processing of natural veneer is carried out by means of planing. The process flow: logs → truncation → splitting → softening (steaming or boiling) → planing → drying (or not drying) → cutting → inspection packaging → storage. Here are just three important aspects:
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1. Cut section; after the log enters the factory, it must first cut into the wood section according to the required length. Then, when cutting the wood, the sawing section must be selected according to the diameter of the log, the texture of the wood and the fixing method of the wood on the planer. , so that the width of the sliced ​​thin wood is not less than the relevant requirements. The reasonable plan not only has a high yield, but also produces a large number of thin cut wood, less string cutting and thin wood, and the resulting product has high decorative value. Logs of different diameter grades should adopt different sawing schemes. The thick solid line in the figure is the sawing line, and the direction of the arrow is the cutting direction of the planing blade: in actual production, logs with a diameter of less than 400 mm are usually sawed by a sawing plan B , while logs of a diameter of 400 to 800 mm are often sawed by a sawing machine. D and E. When these sawing schemes are used to produce thin wood, the yield is high, the quality of the thin wood is good, and the efficiency of the planer is high.
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 2 , cooking; after the wood is cooked (ie hydrothermal treatment), the plasticity of the wood increases. The most effective way to improve the plasticity of the wood is to adjust the temperature and moisture content simultaneously, that is, to increase the temperature of the wood while increasing the moisture content of the wood. This is the reason why the water treatment is usually carried out by steaming the wood with saturated steam or hot water in actual production. First, when the wood is placed in the cooking pool, it should be carried out according to the tree species and the wood specifications. The water temperature should be kept at normal temperature and slowly warmed up to avoid cracking of the wood due to thermal stress. When it rises above 40 °C, it should slow down the heating rate; excessive cooking will also reduce the quality of thin wood; cooking pool should often remove resin, bark, sediment, and often change water to reduce wood pollution; after cooking The wood should be placed in the warm water tank in front of the planer in a timely manner, and the temperature is in the range of 40~50 °C (depending on the tree species and the thickness of the wood).
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 3 , drying; moisture content after drying is generally required to be 8% to 12% , thin wood drying equipment has a continuous operation of the drum dryer and belt dryer and intermittent drying room. The drying chamber is an old-fashioned drying device that is uneconomical but has good drying quality. The most widely used is the drum dryer. The thin wood of the comparison book, especially the thin wood with a thickness of less than 0.4 mm , must use a belt dryer.
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