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Developmental Study on a Continuous Manufacturing Process of the Structural Sheet Material Composed of Long Stick Type Elements Made from SUGI Veneer

杉木单板长棒型构件结构板材连续生产工艺的开发研究

基本信息

批准号：
05556027
负责人：
OKUMA Motoaki
金额：
$ 9.98万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research (B)
财政年份：
1993
资助国家：
日本
起止时间：
1993 至 1995
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-05556027/
关键词：
Sugi Veneer Plywood Structural panel Domestic lumber Production of materials 配向性連続生産

项目摘要

A great demand for structural plywood still exists in Japan, but it is becoming very difficult to keep producing plywood from tropical logs. Hence, a new type of panel product LSB,substituting for the structural Lauan plywood, has been investigated.As it is the last year of the project term, adjustment and cheking of the developed equipments have been done. For example, after checking the automatic forming machine for long stick type elements, which was produced last year, it was decided to add a vacume process to it in order to take the elements into the machine more easily and more uniformly. It gave good results.LSB boards were made by using the developed equipments under various conditions and were tested to have enough properties for structural use. Also, as the chopstick is considered to be a kind of the long stick element, recycled chopsticks were used as an element for board production. All of the chopstick boards have bending properties which exceed those of JIS A 5908 for 8-type Particleboard. But thikness swelling property is one area in which improvements are desired and pre-hotpressing treatment for the element may give a efficient result.From the project, it results that LSB is the very material which realizes both the effective utilization of low-grade wood resources and the stable supply of structural sheet materials of good quality and also there is a certain possibility to set up the continuous automatic manufacturing process for LSB.

日本对结构胶合板的需求仍然很大，但很难继续用热带原木生产胶合板。因此，本课题研究了一种新型板材产品LSB，以替代结构用的劳安胶合板，由于是项目的最后一年，对研制的设备进行了调试和考核。例如，在检查了去年生产的长棒型元件的自动成型机后，决定在其上添加真空工艺，以便更轻松、更均匀地将元件放入机器。利用所研制的设备在不同条件下制作了LSB板，并对其进行了性能测试，结果表明，LSB板具有足够的结构性能。此外，由于筷子被认为是一种长棍元件，回收的筷子被用作纸板生产的元件。所有的刨花板都具有超过JIS A 5908中8型刨花板的弯曲性能。但厚度膨胀性能是一个需要改进的领域，对元件进行预热压处理可能会产生有效的结果。结果表明，LSB是一种既能有效利用低成本，优质木材资源和优质结构板材的稳定供应，也有一定的可能性建立LSB的连续自动化生产工艺。