Zhou Lusheng, a furniture expert in the Ming and Qing Dynasties, once proposed his calculation of the yield of redwood. The loss of moisture after drying is 15%, the average loss of flat saw is 8%, the loss of planed light is 8%, and the loss of engraving is 100%. In the eighteenth, the crack damage is reduced by 20%, and the actual utilization rate is 31%. Therefore, please do not think that one ton of material is used for one ton of furniture.
Here, I will tell you how the mahogany is lost during the production process.
The cutting process of mahogany, including cutting of large materials and small materials, adjustment of straight materials and bending materials, will produce a large amount of wood powder, wood chips, and a lot of mahogany wood. According to Zhou Lusheng, a furniture expert from the Ming and Qing Dynasties, the loss is 8% of the whole wood.
During the opening process, the parts containing white skin, insect eyes and rotten heart will be removed. This is the most part of the whole piece of waste. The waste of various kinds of mahogany is different, but the proportion of discarded wood can reach 20% on average. It is completely unusable for making furniture.
Redwood wood has to be dried several times before it can be used. The moisture loss after drying is 15%, which means that the weight of the mahogany will be reduced by 15%. Under normal circumstances, the wood will be dried three times before the furniture is made, and the sheets and materials are separately dried.
The enamel process in the mahogany, the blinking of the eyes, the hoeing, the cutting of the wood, etc., inevitably produce a batch of wood chips and scraps.
Engraving and molding, the wood loss is 18%, the furniture is assembled, and before the big paint, it is necessary to scrape (using more than ten kinds of scraping (tool to scrape (to make the furniture flat. Scratch (after completion, also need to use the eye) A number of different sandpapers are carried out (sand, in order to make the furniture texture delicate. Among them, it consumes a lot of wood.
After finishing the lacquer, the mahogany furniture is completely finished, and finally it takes 20 to 25 days to dry and dry, in order to face the consumer, which will remove some moisture and lose weight.
Therefore, one ton of wood, its actual utilization rate is only 31%, or even lower.
Therefore, in the current shortage of redwood resources, mahogany manufacturers and consumers should pay more attention to the wood. Consumers who are about to buy mahogany furniture should not use the price of mahogany raw materials to calculate the difference between the price of mahogany furniture. Not to mention the production cost, design cost, and transportation cost of mahogany furniture, only the material is inevitably lost, and the price of mahogany raw materials is also better than the price of mahogany furniture. (Text / Han Dong)
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