Showing papers in "China Wood Industry in 2003"

Processing and utilization of poplar wood from plantations.

Abstract: This paper briefly analyzed the impact of China's fastgrowing economy, entry into WTO, and the implementation of the 6 national forestry development programs on the future supply and demand of timber. Poplar is one of the major forest plantation species in China. Therefore, Poplar plantation forest development and timber processing and utilization will have very important effects on the future relationship between timber supply and demand. This paper reviewed the current situation of processing and utilization of Poplar timber worldwide. It also suggested focusing on future market segmentation, developing high quality Poplar plantation forests, improving current technology of Poplar timber, and developing new products.

Surface Characterization of Rice Straw and its Fibers by FTIR and XPS

Abstract: The effects of thermal-mechanical treatment on surface characteristics of straw were investigated by means of infrared (IR) and X-ray photoelectron spectroscopy (XPS) analysis Results showed that there are great differences in chemical composition between outer face and inner face of rice straw For example, there are only a few active groups, like hydroxyls, on outer face of the straw with an oxygen/carbon (O/C) ratio as low as 0 068 while more hydroxyl groups were on the inner face where the O/C ratio reached 0 284 However, after thermal-mechanical treatment, more hydroxyl groups occurred on the straw fibers obtained by thermal-mechanical treatment and the O/C ratio increased greatly The results indicated that thermal-mechanical treatment can improve interface bonding efficiency between straw and adhesives It provides evidence for further study on manufacturing straw-based MDF with UF resin

Processing and Utilization of Poplar Wood from Plantations

Abstract: This paper briefly analyzed the impact of China's fastgrowing economy, entry into WTO, and the implementation of the 6 national forestry development programs on the future supply and demand of timber. Poplar is one of the major forest plantation species in China. Therefore, Poplar plantation forest development and timber processing and utilization will have very important effects on the future relationship between timber supply and demand. This paper reviewed the current situation of processing and utilization of Poplar timber worldwide. It also suggested focusing on future market segmentation, developing high quality Poplar plantation forests, improving current technology of Poplar timber, and developing new products.

Ultrasonic Non-destructive Evaluation of the Wood Frame for the Great Bell

Abstract: The modulus of elasticity (MOE) of the wood frame structure in the Beijing Yongle Great Bell Museum was determined, on site, by using ultrasonic nondestructive techniques.This paper can be used as a good reference for future studies applying the ultrasonic nondestructive evaluation method in ancient woodstructure buildings. 

Study on Process Technology and its Key Technique of Wood Based Panels from Desert Shrubs

Abstract: The processing technologies for making wood based panels from Sand Willow (Salix cheilophila) and Korshinsk Peashrup (Caragana korshinshii) were studied to determine the most effective utilization of desert shrubs from western China The conclusions were that the minimum requirements for the national standards for particleboard and MDF could be met for panels made from Sand Willow, as well as the MDF made from mixed fibers of Sand Willow and Korshinsk Peashrup These technologies have now been put into industrial production In addition, the properties of particleboard made from Korshinsk Peashrup and mixed Sand WillowKorshinsk Peashrup chips also exceeded the minimum national standards The results indicated that Sand Willow and Korshinsk Peashrup are suitable as the raw materials for woodbased panel production

Design of Clamp Frame-vacuum Chuck Type Single-deck Fast Overlaying Production Line

Abstract: The SFL6100 singledeck fast overlaying production line is a new product developed by SUFOMA Company Ltd. In this article, the design principles, structural features and parameter calculations for the main equipment in the line, such as the hot press and the loading unloading machine, were discussed and their advantages analyzed. The test results for the equipment showed that the efficiency of this new type of overlaying production line could be greatly increased when the clamp framevacuum chuck devices were installed on the loading and unloading machine.

Prospect of Timber Structures for Buildings in China

Abstract: Having reviewed the achievements in histo ry in China and progress in the world in the field of wooden structure buildings, pointed out the side effect of the restrictions on using wooden structure in building constructions for more than 20 years in China, the author suggests to pay more attention to the research and development on timber structures for buildings and to establish research and training centers for on timber structure technologies. 

Treatment for Wood Dimensional Stability

Abstract: Treatment for wood dimensional stability is an effective measure to improve wood properties and broaden its use. This paper reviewed the research on the dimensional stability of wood, including several principle treating methods as well as their mechanisms, effects and applications. It offers a general reference for those engaged in this field.

Mechanical Behavior of Bamboo with Large Deformation:I. The Relationship between Stress and Strain

Abstract: This study tested the mechanical behavior of Moso Bamboo (Phyllostachys pubescens) under large compression deformation at different temperatures and directions (radial, tangential and longitudinal) with restricting conditions. Based on the experimental data, the relationship between stress and strain was established. The results showed that bamboo revealed the same mechanical properties under compression in both radial and tangential directions. The entire deformation process could be divided into three stages: linear plasticity, feeble linearity strengthening after yielding, and power strengthening.

The Situation and Development Trends of Furniture Manufacturing and Marketing in Wuhan

Abstract: Joining the WTO has had a major effect on China's economy and furniture manufacturing industry, for both Wuhan, the capital city of Hubei Province and the country as a whole. This paper investigates and analyzes the current status of furniture market in Wuhan, and forecasts the future of China's furniture industry and the market for Wuhan after China joined the WTO. The authors also present some suggestions for Wuhan's furniture manufacturers. 

Progress of Applying IT to the Chinese Furniture Manufacturing Industry

Abstract: Globalization and China's joining WTO has brought both opportunities and challenges for China's furniture manufacturing companies. Based on an analysis of China's current furniture industry, the authors explained the importance and significance of information technology for the Chinese furniture manufacturing industry. They also presented that the key for forming the highlyindustrialized and modernized furniture industry is to reform management methods and the manufacturing process basing it on IT, rather than merely on a labor intensive work force.

Composite Honeycomb Panel Manufacturing and Its Application to Furniture Industry

Abstract: This paper reviews the overall manufacturing technology for composite honeycomb panels from the honeycomb paper core preparation, adhesive application, to panel assembling and forming. This is followed by an examination of the current use of composite honeycomb panels in the furniture industry in China. Finally, suggestions are made for further research and development for composite honeycomb panels. 

Design and Realization of Wood Marketing System on Web

Abstract: The internet, through the world wide web, has presented many new opportunities for marketing. In this article, the authors have described how to design a webbased wood marketing system that provides system analysis, realization and security. 

The Export Status of Poplar Wood-based Panels in Jiangsu Province

Abstract: In this paper, the authors reviewed the current exporting situation of Poplar (Populus deltoids) woodbased panels in Jiangsu Province, China. The main Poplar woodbased panel products being exported are long grained plywood, cross grain plywood, plywood for concreteform, blockboard, laminated veneer lumber (LVL) as well as veneer for LVL and so on. The authors also summarized the product quality demanded from foreign customers from different importing countries. Finally, some suggestions on manufacturing technologies and equipment were made.

Evaluation Method of Adhesion Effect for Plywood

Abstract: Based on the test and analysis of plywood sample bonding strength, as well as observations on rupture characteristics including micro observation of the glue line, the authors of the paper indicated the limitations of the evaluation method of bonding strength and its wood failure ratio in the current national plywood standards The authors suggested a new method for evaluating the bonding effect by using the adhesion efficiency, wood failure ratio and shear modulus or their combination as the major indexes