最新刊期
期 4 ， 2022
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摘要：In order to improve the utilization rate of precious wood species and increase the added value of wood products, plastic-film reinforced pliable decorative veneer (PRPDSV) has been developed. These products have strong application value and broad market prospects. This paper reviewed the preparation, application status, and research progress of new products developed during the 13th Five-Year Plan period. The feasibility and applicability of different kinds of PRPDSV was analyzed. The specific industrial application progress of PRPDSV was expounded. Both the industrial advantages and technical problems of plastic film reinforced flexible decorative veneer were summarized. The development trend of its technology and application was prospected.关键词：plastic-film;pliable decorative veneer;preparation technology;application progress- 117
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发布时间：2022-08-17 -
摘要：Sanding is a critical technique in machine processing, which displays significant influence on wood surface quality and interface bonding performance of wood products. This article summarized the surface creation mechanism and sanding efficacy failure mechanism. Furthermore, the key technique was introduced on wood sanding process. Meanwhile, perspectives on the development of wood sanding technology were proposed for future research.关键词：wood materials;sanding;surface creation;sanding efficacy failure- 91
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发布时间：2022-08-17 -
摘要：Dyeing treatment can enrich the color of wood products, enhance the decorative effect, and add commodity values. Wood dyeing with reactive dyes is an efficient method, which forms a fiber-dye system with wood fibers through covalent bonds and endows wood materials with rich colors. In this paper, the classification, dyeing process, and fixation methods of reactive dyes were analyzed. The effects of functional group differences of reactive dyes, factors affecting dyeing, and the action mode of auxiliaries on the dyeing results were discussed. In addition, the development ideas and suggestions for wood material dyeing were proposed from the aspects of improving the dyeing activity of reactive dyes, enlightening the color fastness of dyed fibers, and reducing the emission of pollution waste in the dyeing process.关键词：wood materials;reactive dyes;reactive activity;color fastness- 84
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发布时间：2022-08-17 -
摘要：Geopolymer adhesive is a new type of inorganic polymeric cementitious material with environment friendly high performance. The unique three-dimensional network structure provides the geopolymer adhesive with strong mechanical properties. However due to the material characteristic of brittle and weak toughness, the geopolymer adhesive is less compatible with the wood. The research on geopolymer as wood adhesive is limited. In this paper, the feasibility of geopolymers as wood adhesives and the effect of modification on properties were reviewed. The potential of geopolymers replacing the aldehyde-based adhesives in producing wood-based composites was discussed.关键词：geopolymers;wood adhesive;modification technology- 85
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发布时间：2022-08-17
REVIEWS
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摘要：Home furnishing informatization management for intelligent manufacturing requires information sources on the unique basis of integration and sharing. This paper interprets the formation process and problems existing in the application of two key control systems, including enterprise resource planning (ERP) and manufacturing execution system (MES) for the intelligent manufacturing. It was analyzed of the application advantages of the integration of ERP and MES management systems in home furnishing enterprises combined with the basic characteristics of ERP and MES. Regarding to the short processing cycle and many changes in process routes of customized furnishing products for intelligent manufacturing, this paper proposed the key points of ERP / MES integration technology for furniture enterprises intelligent manufacturing. It includes the construction of ERP/MES integrated management module, the overall process optimization and information integration of ERP/MES system, the ERP/MES information integration for the whole product life cycle, and the ERP/MES information integration based on non-linear process scheduling. It provides a reference for home furnishing enterprises to realize digital intelligent manufacturing and transformation of information control.关键词：customized furnishings;intelligent manufacturing;ERP/MES integration;digital management- 40
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发布时间：2022-08-17 -
摘要：The efficiency of a furniture production line is greatly affected by the operation effectiveness of the first cutting process. In this study, the equipment performance and failure maintenance during the cutting process in a large domestic intelligent furniture factory was investigated. The authors applied the overall equipment efficiency model to analyze the effects of the main equipment on the production efficiency of the cutting process, including waste disposal device, automatic line, bar code printer, and electronic cutting saw, etc. The principle reasons causing the low operation effectiveness of cutting machinery were identified: the backward management mode, the lack of spare parts management, and the defect of fault feedback mechanism.关键词：panel furniture;intelligent factory;cutting process;operation effectiveness;overall equipment efficiency- 51
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发布时间：2022-08-17
RESEARCH ON PLANNING AND MANAGEMENT FOR HOME FURNISHING DIGITAL WORKSHOP
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摘要：In this study, the gas chromatography-ion mobility spectrometry (GC-IMS) was employed to collect the fingerprint information of volatile organic compounds (VOCs) of fragrance-scented particleboards added with the Chinese herbal medicine. The detailed information, i.e., the fragrance fingerprint, the difference and degree of differentiation of the fragrance-scented particleboards, and the control group were evaluated by the principal component analysis and the nearest-neighbor analysis. There are 37 kinds of VOCs identified by GC-IMS in fragrance-scented particleboards, among which aldehydes, alkenes, ketones, and esters are the main VOCs. Linalool, caryophyllene oxide, and camphor are the characteristic VOCs in the fragrance-scented particleboards. The fingerprint information, the principal component analysis, and the nearest-neighbor analysis diagrams can distinguish the difference of VOCs between the control group and fragrance-scented particleboards. The results show that GC-IMS provides theoretical basis and data supporting the rapid identification of scented particleboards with the Chinese herbal medicine.关键词：gas chromatography-ion mobility spectrometry (GC-IMS);fragrance-scented particleboards with added Chinese herbal medicine;volatile organic compounds (VOCs);fingerprint- 69
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发布时间：2022-08-17 -
摘要：In China, the wood-based panel industry consumes a large amount of industrial-grade flour as the adhesive filler every year. In this paper, corn cob powder was modified by impregnating with CaCl2 and Na2CO3 two-phase inorganic salt solution and used as UF filler for manufacturing plywood. The results showed that calcium carbonate microcrystals were successfully formed in the inner pores of corn cob powder by impregnating and drying calcium chloride and sodium carbonate aqueous solution twice. 250 purposely modified corn cob powder was evenly dispersed in urea-formaldehyde glue. When the modified corn cob powder was used as filler, it effectively prevent UF glue from precuring and significantly reduced the viscosity. The adhesive strength of the plywood was increased by 18.8% and the formaldehyde emission was decreased by 27.1%.关键词：corn cob;calcium carbonate microcrystals;adhesive filler;particle size;bonding strength;formaldehyde emission- 40
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发布时间：2022-08-17 -
摘要：High-energy microwave with different energy density was used to treat Chinese fir (Cuninghamia lanceolate) and Obeche (Triplochiton scleroxylon) lumber with 50 mm-thickness. The effects of these treatments on the wood drying rate and drying quality were analyzed. After microwave pretreatment, the drying evenness of two species were improved; the deviation of moisture content in thickness and the residual drying stress value were decreased; while the drying rate remained basically unchanged. Considering the wood drying quality, power efficiency of microwave pretreatment process, and surface defects of pretreated wood, the optimum energy density value was 168.5 MJ/m3 for Chinese fir and 330.2 MJ/m3 for Obeche wood respectively.关键词：microwave pretreatment;energy density;wood;drying quality- 64
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发布时间：2022-08-17 -
摘要：In order to investigate the effect of heat treatment on acoustic properties of wood, Sitka spruce boards were thermally treated with the atmospheric superheated steam at 160 ℃ for 0.5, 1.5 or 2.0 hours. The acoustic properties, hygroscopicity, and color of the heat-treated wood were assessed. Dynamic thermomechanical analysis was applied to investigate wood viscoelasticity and property modification mechanism. The results showed that heat treatment improved wood acoustic properties. After the treatments, the specific dynamic elastic modulus increased by 30.4%~36.4%, the quality constant increased by 19.1%~22.3%, and the sound conversion efficiency increased by 44.8%~48.6%. The hygroscopicity of the heat-treated wood was found much lower than the control, which helped both improve and stabilize the acoustic properties, and the after-treatment appearance was similar to the naturally aged wood.关键词：Sitka spruce;wood soundboard;heat treatment;acoustic property;Wood color;moisture sorption- 64
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发布时间：2022-08-17 -
摘要：Lateral performance parameters such as the lateral-resisting capacity, the initial lateral-resisting stiffness, and the ductility coefficient are important indicators for evaluating the lateral performance of Chuan-dou style wooden frames. Based on the load-displacement curve of the monotonic loading test of Chuan-dou style wooden frame, the lateral performance parameters were calculated according to different codes and standards respectively. The specific definitions of the yield displacement and the ductility coefficient are not given in GB/T 37745—2019, While only were the initial lateral-resisting stiffness and lateral-resisting capacity of the structure calculated according to the definition in this standard. The results showed that the lateral-resisting capacity calculated by different standards was the same, and the initial lateral-resisting stiffness results were similar, however the ductility coefficients were significantly different. The initial lateral-resisting stiffness calculated according to GB/T 37745—2019 is lower than other methods. The ductility coefficient is greater than 4.0 using the calculation method specified in both JGJ/T 101—2015 and EN 12512:2005. The ductility coefficient is 2.5 when the calculation is following the method in ASTM E 2126-11. According to the force characteristics of Chuan-dou style wooden frame and the bilinear segment characteristics of the load-displacement curve, the methods specified in JGJ/T 101—2015 and EN 12512:2005 are applicable to the calculation of lateral performance parameters of Chuan-dou style wooden frame.关键词：Chuan-dou style wooden frame;lateral performance;standard;calculation methods- 36
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发布时间：2022-08-17 -
摘要：To evaluate the interior voids in wood components, the stress wave, a nondestructive testing technology was used to assess fir wood. The stress wave images were analyzed. The attenuation of the stress wave propagate through different voids areas were measured. In order to reduce the prediction error of discrimination, the Mahalanobis distance was proposed to detect the degree of voids. The results showed that the location of interior voids was detected through the stress wave images. According to the concept of Mahalanobis distance, five paths were used to analyze the attenuation law of the stress wave through different interior voids areas. A discrimination model was established to evaluate the degree of the interior voids in the wood components. The stress wave not only detected the voids of small area voids, but also assessed the large area interior voids. The method improves the measurement precision of the location and the area of the interior voids in the wood components, as well as provides a basis for the prevention and detection of the interior voids in the wood structures.关键词：stress wave;wave velocity;wood components;fir;voids- 62
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发布时间：2022-08-17
RESEARCH PAPERS
- 摘要：Forest degradation caused by the international trade of endangered timber species has exacerbated the destruction of wildlife habitats and the biodiversity loss. The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) regulates the international trade in wildlife, including endangered tree species, to prevent over-exploitation of endangered species. This study discussed CITES regulation policies for endangered timbers, analyzed the revising trends of CITES regulation policy. The national policy for endangered timber species in China was also reviewed. The challenges for strengthening implementation of CITES for tree species were summarized. Finally, the implementation strategies of CITES for tree species were proposed, in order to effectively enforce CITES implementation and biodiversity conservation in China.关键词：CITES;endangered timbers;regulation policy;implementation strategies
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发布时间：2022-08-17 -
摘要：In the new trend of personalization and customization, the traditional solid wood furniture industry, specifically solid wood finished furniture is in the market downturn. Under the trend of whole-house decoration and high-end customization, with the assistance of intelligent manufacturing, digital production, and information management, solid-wood decoration has become an important way to reform the traditional solid wood furniture industry. Three major modes need to be realized: the transformation from the inventory mode to order mode, from the experience mode to demand mode, and from the trade mode to service mode. This paper proposes two solutions: the limited customer system and flexible production. The goal is to establish an intelligent factory, which provides an option for the transformation of the solid wood furniture industry. Through the mode update of production, design and development, and brand marketing, it is possible and feasible to transform the traditional solid wood furniture industry to solid wood decoration industry.关键词：solid wood furniture;whole-house decor trend;industry transformation- 73
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发布时间：2022-08-17
DISCUSSION ＆SUGGESTION
- Address：Box 29，Research Institute of Wood Industry, No. 1, Dongxiaofu, Haidian District, Beijing Postal code：100091
- Tel：010-62889419 Email：mckx@caf.ac.cn
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