| 摘要 |
PROBLEM TO BE SOLVED: To enable individual managing of timbers for rot-proof/termite preventive performance of the timber and to individually secure the rot-proof performances of the timbers. SOLUTION: A manufacturing system of the timber treated for a preservation impregnates the timbers with at least one chemical liquid of preservatives, mildewproof agent and termite preventing agent. The system comprises a weight measuring means W for measuring the weight of the timber before the timber is impregnated with the chemical liquid and the weight of the timber after the timber is impregnated with the chemical liquid, an injection amount calculating means IJ for calculating a chemical liquid injection amount based on a difference between the weight of the timber after the timber is impregnated with the liquid and the weight of the timber before the timber is impregnated with the liquid, a performance classification means E for deciding a preservation performance classification of the timbers based on the calculated chemical liquid injection amount, and a sorting means S for sorting the timbers at each decided preservation performance classification.
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