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辽宁省公路基本建设工程和部分市县养路工程木桥的木料,自1954年起,即集中在开原进行防腐处理。开始时设备较为简单,几年来逐步增添设备,并进行木料的加工和桥梁构件的预制,遂形成了一个小型的公路木桥构件防腐加工厂,三、四年来已加工和防腐处理木料一万五千多立方公尺。目前这个厂采用的主要方法是热冷槽法,防腐剂采用3％的氟化钠水溶液,1957年上半年计处理了762立方公只木料,平均防腐费用的分析如下: 每立方公尺木料用热冷槽法浸注氟化钠水溶液的成
Liaoning Province, highway construction projects and part of the city and county road maintenance project wooden bridge wood, since 1954, that is concentrated in Kaiyuan for preservative treatment. The beginning of the equipment is relatively simple, gradually adding equipment over the past few years, and wood processing and prefabricated bridge components, thus forming a small highway wood bridge components preservative processing plant, three or four years have been processed and preserved wood fifteen Over 1,000 cubic meters. The main method currently used in this plant is the hot and cold trough method, preservatives using 3% aqueous solution of sodium fluoride, accounting for 762 cubic kilometers of wood only in the first half of 1957, the average anti-corrosion costs are analyzed as follows: Hot and cold trough infiltration solution of sodium fluoride into