共查询到20条相似文献,搜索用时 171 毫秒
1.
2.
目前,国内的MDF制造厂多以木质纤维为原料生产中高/密度纤维板,包括采伐剩余物、造材剩余物、加工剩余物以及回收的废旧木材.木质原料的质量直接影响纤维板的性能.不同的原料树种,其纤维形态、纤维含量、树皮含量、树木的生长年龄等均对纤维板的性能有明显的影响.为了探索树种和不同质量的原料对中/高密度纤维板性能的影响,我公司进行了大量的生产性试验,并对产品进行物理性能检测,所有检测均在本公司中心实验室进行.现将公司进行的生产性试验情况浅析如下. 相似文献
3.
4.
5.
介绍了利用稻(麦)壳与枝桠材制造中/高密度纤维板的生产工艺、设备及技术措施,分析了大比例稻(麦)壳与枝桠材复合生产中/高密度纤维板的经济效益。 相似文献
6.
7.
8.
9.
增白型中/高密度纤维板是一种表面细腻、颜色白净、视觉效果好的高品质纤维板.本文介绍了增白型中/高密度纤维板的产品特点,分析了增白型中/高密度纤维板的制造工艺,为生产高附加值高品质的中/高密度纤维板提供参考. 相似文献
10.
11.
科技创新是企业立足之本,也是我国人造板产业的发展之道。本文从环保纤维板生产工艺、功能性纤维板研制、特种胶黏剂制备、新原料研用等方面介绍产品创新,从料场备料、水洗热磨、风送除尘、干燥、铺装系统等全面阐述生产线升级改造,以期为纤维板产业升级提供帮助。 相似文献
12.
H. J. Deppe 《Holz als Roh- und Werkstoff》1986,44(9):333-340
The treatment of blockboard and plywood for building purposes with wood preservatives rises grater problems. For blockboards, core layer and surface layers must be treated separately. The solid wood slabs for the core layer may be treated by pressure impregnation (salt preservatives) or by immersion (oil borne preservatives). For surface layers (fiberboard, thin particleboard, veneers) the preservative treatments are to be coordinated to the respective material. For protecting plywood, best chances are given to the method of adding the preservative to the glue mixture. Treating blockboards or plywood after final pressing does not at all lead to satisfying results. 相似文献
13.
Defibration conditions and raw material properties affect wood fiber characteristics, and thereby the properties of fiber-based panels such as high-density fiberboard (HDF), medium-density fiberboard (MDF) and wood fiber insulation board. This study investigates the influence of steaming conditions (time and temperature), grinding disc distance, wood species (pine, beech, birch and poplar), method of refiner discharging (radial and tangential stock outlet) and wood chip size on fiber length and fiber length distribution, and further the influence of fiber size on MDF properties. Fiber lengths were determined applying the recently developed image analysis-based fiber size measuring system FibreCube. This system enables an automated and nearly complete mechanical separation of woolly-felted fiber samples prior to image acquisition, software-supported post-separation of overlapped-lying fibers at the beginning of image analysis, and flow line tracing-based length measurement. It was found that grinding disc distance and wood species are the most influential parameters on fiber length characteristics. Especially the content of undefibrated fiber bundles (shives) was found to strongly correlate with the grinding disc distance. Wood anatomical differences between hardwood and softwood were reflected clearly by the fiber length characteristics. Fiber size was found to be one of the parameters influencing panel properties. However, other fiber characteristics—in particular the chemical nature of the fiber, which is responsible for its wettability with water (thickness swelling) and glue (mechanical properties)—have to be considered as important influencing parameters on panel properties. 相似文献
14.
我国纤维板生产原材料短缺是制约纤维板行业发展的重要因素.文章分析了我国纤维板生产原料分布及使用情况,并对原料短缺问题提出解决措施. 相似文献
15.
16.
17.
18.
Thermoplastic polyurethane was reinforced with discarded polyester fiber to develop excellent mechanical properties of fiberboard composites, by hot pressing and mixing method. The fiberboard was drilled and made as a perforated plate, which was then coupled with polyester fabric; so a multiple layer structural material with good sound absorption function was achieved. Sound absorption properties were studied by changing holes diameter, air cavity depth, and perforation ratio. Theoretical absorption coefficient was obtained through building analytical model and massive theoretical calculation. It was found that it has good agreement with the experimental results. Hence, the analytical model could be adopted to predict the sound absorption coefficient of multilayer structural composites. 相似文献
19.
以丰林公司为典型案例,从主营收入占比及上市后拓展方向、原料林投资与销售、主产品产销及成本、主要财务指标等多方面对其招股说明书进行分析,为有意进入纤维板业的企业、拟上市公司、转型升级的企业提供借鉴和支持,以趋利避害,为将企业做强做大出实力,为行业发展做尝试。 相似文献
20.
以丰林公司为典型案例,从主营收入占比及上市后拓展方向、原料林投资与销售、主产品产销及成本、主要财务指标等多方面对其招股说明书进行分析,为有意进入纤维板业的企业、拟上市公司、转型升级的企业提供借鉴和支持,以趋力避害,为将企业做强做大出实力,为行业发展做尝试。 相似文献