Expanded perlite is used to replace part of wood-based particles and the effect of the amount of added expanded perlite on the thermal conductivity coefficient,compressive strength,linear shrinkage and oxygen index of composite thermal insulate pipes are studied;the moulds for composite thermal insulate pipes are designed and manufactured.
Analysis and study of using ethylene-vinyl acetate copolymer resin and glass fiber yarn to produce hot melt adhesive string is made,and the optimum method for producing hot melt adhesive using ethylene-vinyl acetate copolymer resin and glass fiber yarn is determined through orthogonal experiments.
The production technology,product performance and test methods of wooden blinds made of linden wood are introduced,with some problems existing in the production and some suggestions for developing wooden blind products presented.
A study on the composite produced under pressure by utilizing wood shavings and polystyrene foam with adhesives and additives is made as well as the evaluation on the composites in terms of such main technical indexes as thermal conductivity,compression strength and dimensional stability.The effect of varying ratios of wood shavings to polystyrene foam, adhesive amount and density on the performance of the composite is examined and the interface of the composite is analyzed using a scanning electron microscope.The results show that within the set density range,a fluffy combination of wood shavings and polystyrene foam appears because of the combined action of adhesives,additives and pressure and that the optimum technology determined by an orthogonal test is the ratio of polystyrene foam to wood shaving as 12:88,adhesive amount 12%,additive 2%,0.20g/cm3.The composite material manufactured using this technology can meet the standards of relevant standards.
针对东北林区大量生长的落叶松、白松、桦木小径木,从制材方式及干燥工艺等方面进行了大量的试验研究,并进行了批量生产试验.试验结果表明:采用新的制材方式,结合高温蒸汽干燥新工艺,可有效地解决小径木在干燥及加工中出现的质量问题.
通过对家具用集成材加工工艺的研究,确定了最佳工艺参数.对样品的测试结果表明,其含水率和浸渍剥离率2项主要指标均符合相关标准的要求.因其使用了环保型无毒胶粘剂,使集成材在家具制造领域的应用具有广泛的前景.