【摘要】 <正> 在胶合板生产中,单板施胶、组坯以后要放置一段时间,称其为“闭合陈化”。关于板坯陈化的作用有的文献记载:“陈化的目的是使胶液中一部分水份蒸发或渗入单板,使其粘度增高,避免热压时胶液挤出,产生缺胶或透胶现象,也可降低胶层水份,防止卸压时鼓泡”。笔者认为这种提法不尽完美,没有揭示板坯陈化作用的真正实质,为此,本研究就板坯的陈化作用进行了试验,就其有关内容进行了初步探讨。旨于充实更多还原

【Abstract】 The paper described assembey effects Of Veneers upon the bond qualities in plywood process. Here are the results of research which is significant to the manufacture plywood. The conclusions are presented herewith:1. The assembey which decreases the amount of water in the glue either into wood or by evaporation, results in improving viscosity of glue, avoiding liquid adhesive flow over at hot press time and glue content wilt not adequately produce an optimum bond.The testng result responds to the previous research.2. Veneers assembey was advantageous for improving wetability ofwood surface and cohesion between glue and wood moleculars, resulting in improving strength of plywood.3. Results of testing show that the more assembly time of veneers, the harder strength of plywood.o更多还原