【摘要】 以过热蒸汽为传热介质和保护性气体,在热处理温度为165℃、180℃、195℃、210℃,热处理时间为10h的条件下对日本落叶松木材进行高温热处理,研究日本落叶松木材在不同热处理温度下的表面显微硬度变化。结果表明,随着热处理温度升高,热处理材表面显微硬度逐渐升高,当热处理温度低于195℃时,木材表面显微硬度变化趋势不明显,当热处理温度达到210℃时,热处理材的表面显微硬度显著提高,变化率高达44.12%。更多还原

【Abstract】 Larix kaempfer wood was heat treated at temperature of 165℃,180℃,195℃,210℃,and duration of 10h,with the superheated steam as a heating medium and a shielding gas.The micro-hardness at different temperatures are studied.The results show that micro-hardness goes up with the temperature and increases.The micro-hardness change is not obvious,when the heat-treated temperature is below 195℃.The micro-hardness change is so remarkable as to 44.12%,when the heat-treated temperature is 210℃.更多还原