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论述了热压法制造粉煤灰（ｆｌｙ＿ａｓｈ）刨花板工艺。试验选取热压温度、热压时间、粉煤灰／（粉煤灰＋水泥）、灰木比、水灰比、添加剂和板子密度等工艺变量进行了研究。结果表明：（１）用速生杨和南京热电厂Ⅰ级电除尘粉煤灰作主要原料制造粉煤灰刨花板是可行的。（２）粉煤灰用量占总灰量（即粉煤灰／（粉煤灰＋水泥）的６０％～７０％时制板仍然能达到冷压法水泥刨花板国家行业标准要求。但随着粉煤灰用量所占比例的增加，板子强度先呈上升趋势，到６０％以后又呈下降趋势，６０％时板各项性能指标较好。（３）板子密度对板子性能影响极其显著，灰木比其次。建议：粉煤灰／（粉煤灰＋水泥）＝６０％时，板密度１２００ｋｇ／ｃｍ３，灰木比为２５、水灰比为０４，强碱性添加剂用量为９％，活性剂用量为４％，热压温度１２０℃左右，热压时间１５ｍｉｎ／ｍｍ板厚为宜。（４）热压法粉煤灰刨花板相对于冷压法制板具有初强度高、生产效率高的优点。
The fly_ash particleboard manufacturing process by hot-pressing was discussed. The experiment selected hot-pressing temperature, hot-pressing time, fly ash / (fly ash + cement), gray-to-wood ratio, water-cement ratio, additive and board density and other process variables. The results show that: (1) It is feasible to use quick-growing poplars and Class I electric dust-removing fly ash as the main raw material to produce fly ash particle board. (2) When fly ash is used as the total ash amount (ie, fly ash/(fly ash + cement) 60%-70%), the board can still meet the national standards for cold-pressed cement particle board, but with the powder With the increase of the proportion of coal ash used, the board strength first showed an upward trend, and after 60%, it showed a downward trend, and 60% of the board had better performance indicators.(3) Board density had a significant effect on board performance. Secondly, it is recommended that when the fly ash / (fly ash + cement) = 60%, the board density is 1200kg/cm3, the gray-to-wood ratio is 25, the water-cement ratio is 04, and the amount of strong alkaline additive is 9 %, the amount of active agent is 4%, the hot-pressing temperature is about 120° C., and the hot-pressing time is 1 5 min/mm. (4) The hot-pressed fly ash particle board has a higher initial strength than the cold-pressed board. The advantages of high production efficiency.