赛黑桦(Betula schmidtii),又称辽东桦,散孔材;木质厚重、坚硬,传统上用来制作车轴、木锤、擀面杖、算盘珠等(戚继忠等,2009;Akcehob et al.,2006),主要生长在我国东北东部与朝鲜接壤地区,与该地区相邻的朝鲜南部和俄罗斯南部海滨...赛黑桦(Betula schmidtii),又称辽东桦,散孔材;木质厚重、坚硬,传统上用来制作车轴、木锤、擀面杖、算盘珠等(戚继忠等,2009;Akcehob et al.,2006),主要生长在我国东北东部与朝鲜接壤地区,与该地区相邻的朝鲜南部和俄罗斯南部海滨一带(锡霍特山脉南端)亦有分布,成年立木高约20m,树干直径约70cm,寿命约300-350年(Nechaeva,1972;RedBookoftheUSSR,1984;Korkishko,1992)。展开更多
Efficient use of timber is a vital concern problem, especially in these regions where the forestry coverage ratio is decreasing. Studies on physical modification of wood have been taken more attention due to the incre...Efficient use of timber is a vital concern problem, especially in these regions where the forestry coverage ratio is decreasing. Studies on physical modification of wood have been taken more attention due to the increasing attentions on environmental protection. Thermal modification is emphasized and developed quickly in developing countries, especially in European countries. A large number of researches have been conducted and some industrial production plants have been built. This paper reviewed the history of heat treatment, exemplifies the industrial developments in several European countries, summarized the basic principle of heat treatment and describes the environmental characteristics. The properties of heat-treated wood and its usage are also summed up.展开更多
文摘赛黑桦(Betula schmidtii),又称辽东桦,散孔材;木质厚重、坚硬,传统上用来制作车轴、木锤、擀面杖、算盘珠等(戚继忠等,2009;Akcehob et al.,2006),主要生长在我国东北东部与朝鲜接壤地区,与该地区相邻的朝鲜南部和俄罗斯南部海滨一带(锡霍特山脉南端)亦有分布,成年立木高约20m,树干直径约70cm,寿命约300-350年(Nechaeva,1972;RedBookoftheUSSR,1984;Korkishko,1992)。
文摘Efficient use of timber is a vital concern problem, especially in these regions where the forestry coverage ratio is decreasing. Studies on physical modification of wood have been taken more attention due to the increasing attentions on environmental protection. Thermal modification is emphasized and developed quickly in developing countries, especially in European countries. A large number of researches have been conducted and some industrial production plants have been built. This paper reviewed the history of heat treatment, exemplifies the industrial developments in several European countries, summarized the basic principle of heat treatment and describes the environmental characteristics. The properties of heat-treated wood and its usage are also summed up.