低压短周期三聚氰胺浸渍纸饰面中密度纤维板生产工艺探讨

介绍低压短周期三聚氰胺浸渍纸饰面中密度纤雏扳的生产工艺控制。讨论压站时的无压时间度三聚氰胺浸渍纸挥发分、预固化度和中密度纤维板基材质量技术指标波动对其生产过程与产品质量的影响；介绍生产中常见的产品质量缺陷并分析其产生原因。     

三聚氰胺贴面板在现代家具上的应用及发展前景

三聚氰胺贴面板亦称低压短周期三聚氰胺浸渍纸贴面刨花板(中密度纤维板),是在高压三聚氰胺树脂装饰板(俗称防火板)生产技术基础上发展起来的一项人造板表面装饰加工技术。     

离型纸在三聚氰胺浸渍胶膜纸饰面人造板生产中应用探究

探索不同纹理的离型纸在三聚氰胺浸渍胶膜纸饰面人造板生产中的应用,通过选用匹配的压贴设备、调整压贴参数,研究其加工可行性.研究结果表明,离型纸可用于压贴三聚氰胺浸渍胶膜纸饰面人造板,并且展现出钢模板无法实现的效果,具有广阔的应用前景.     

《浸渍纸层压木质地板》标准审定材料摘录

3月31日,《浸渍纸层压木质地板(强化木地板)》标准送审稿通过专家审定,现将部分内容公布如下,供业内人士参考。1 定义1.1 表层 表层包括下述两种材料: —热固性树脂装饰层压板 —浸渍胶膜纸1.2 基材 浸渍纸层压木质地板(强化木地板)的芯层材料通常是刨花板、中密度纤维板或高密度纤维板。1.3 底层     

不同类型胶黏剂对难燃中密度纤维板燃烧性能的影响

采用异氰酸酯(MDI)、E₁级中密度纤维板用脲醛树脂(FU)和E₀级中密度纤维板用三聚氰胺改性脲醛树脂(MUF)制备难燃中密度纤维板,考察不同类型胶黏剂对难燃中密度纤维板阻燃性能的影响。结果显示,3种胶黏剂制备的难燃中密度纤维板的阻燃性能均达到了GB 8624—2012《建筑材料及制品燃烧性能分级》中B1级要求,MUF难燃中密度纤维板中三聚氰胺的存在对阻燃性能有提升作用,而MDI难燃中密度纤维板中MDI的易燃性降低了中密度纤维板的阻燃性能。     

安徽抽查人造板产品质量

2006年12月，安徽省质监局公布了近期对全省人造板企业产品质量的抽查结果。此次抽查包括合肥、芜湖等11个城市共81组人造板样品，检验结果合格品61组，抽样合格率为75．3％。本次抽查中浸渍纸层压木质地板、实木地板、刨花板、中密度纤维板、地板基材用纤维板、竹编胶合板模板、竹地板等7类产品的合格率为100％。而细木工板、胶合板、浸渍胶膜纸饰面人造板类产品有不合格品，不合格项目主要是甲醛释放量超标。不合格人造板产品生产企业涉及滁州、安庆、合肥、六安、黄山、毫州、芜湖、巢湖等8个城市的企业。     

浸渍胶膜纸饰面人造板质量要求及影响因素

阐述了我国浸渍胶膜纸及浸渍胶膜纸饰面纤维板、刨花板、胶合板和细木工板质量要求及其影响因素,为提升我国浸渍胶膜纸饰面人造板产品质量提供参考。     

单层间歇式平压生产线生产薄型中密度纤维板常见质量问题分析及其解决方法

介绍单层间歇式平压生产线生产薄型中密度纤维板时常见的质量问题,分析其产生的原因并提出了解决方法。     

单层间歇式平压生产线生产薄型中密度纤维板常见质量问题分析及其解决方法

介绍单层间歇式平压生产线生产薄型中密度纤维板时常见的质量问题,分析其产生的原因并提出了解决方法。     

浅析我国中密度纤维板生产企业发展方向

介绍我国中密度纤维板的发展历程、应用市场;阐述现阶段我国中密度纤维板生产存在的问题;分析我国中密度纤维板生产企业的发展方向.     

我国中/高密度纤维板生产发展现状

简要介绍我国中/高密度纤维板生产的发展过程,生产能力和产量;简述其技术水平和产品质量,产品结构和市场需求;论述了原料林基地建设及其经济和社会效益;概括了我国中/高密度纤维板发展中存在的问题与不足。     

Optimierung des Eigenschaftsprofils von MDF

During the last years, medium density fibreboards (MDF) became firmly established on the European wood-based material market. The production figures indicate that this tendency is still growing, although in some areas a certain saturation of the market has been reached. MDF manufactured in a dry process offering the possibility of producing such boards in comparable variety and quantity to particleboard, represent a panel product which is a serious competitor for the latter. In Germany, the MDF-production was taken over mainly by particleboard manufacturers. Thus, MDF was no more a competing product but a completion and an enlargement of the existing board range, especially in areas where the particleboard was only suitable for certain purposes. Due to its manufacturing process MDF distinctly differs from particleboard and for this reason reveils a different property profile. The user has not to deal with a substitute product offering “better properties”, therefore, he has to prepare himself for the product. The properties of MDF will be presented in detail and hints for the development of this product will be given.     

浅析连续平压法生产中/高密度纤维板工艺控制要点

近年来,连续平压法已经是中/高密度纤维板生产企业首选技术。笔者结合多年的工作经验,介绍了连续平压机生产中/高密度纤维板过程中工艺控制要点,并针对如何稳定产品质量提出了工艺控制思路。     

连续平压机压制中密度纤维板的剖面密度曲线分析

分析连续平压机压制的中密度纤维板的剖面密度曲线,提出优化压制板材质量的工艺措施。     

Dampfpreßanlage zur Herstellung von MDF mit hochverdichteten Deckschichten

The up till now largest steam press with a finished board size of 2445 mm × 14695 mm has entered production in Portugal. Based on a newly developed process it produces MDF with high density surfaces. The surface quality of the steam pressed boards equals that of conventional MDF. The new product presents less density decline in the core layer, higher internal bond and lower internal tensions. The new plant produces boards in a thickness range of 8 mm up to 60 mm.     

Entwicklungsmöglichkeiten von MDF

In Europe MDF production capacities did not expand until the end of the 1970ies, i.e. 10 years later than in the USA. In 1994 MDF had a share of 8% of the German wood-based panel production and merely 6% worldwide in 1993. Internationally, a steady dynamic MDF-production is expected by the year 2000, with an estimated 14% share of the market. Softwood chips, partly with bark, form the main raw material source in German MDF plants. Worldwide, annual plants such as bagasse, bamboo, jute and cotton waste are being used for the manufacture of MDF. Energy used in the milling of 1 ton oven-dry fibre material is about 200 kWh and thus a major cost factor in MDF production. Hence serious attempts are being made in processing to reduce energy consumption through biological or chemical pre-treatment methods. To-day, MDF is being glued with any of the gluing systems used in particleboard production, i.e. urea, urea-melamine and phenolic resins and polymeric diphenylmethane-4,4′-diisocyanate, the most frequently used method being glue application in the blowline. A central problem in MDF-plants is that twice the pressing time of particleboard production is required. The dense and homogeneous fibre structure as well as the variability in density and strength of MDF make it superior in further processing to particleboard and OSB as well as to solid wood. MDF profiles onto whose edges and planes lacquers can be directly applied were one of the first fields of application. Numerous other uses have since been added, e.g. three-dimensional furniture parts, floor-laminates and moulded structural parts. In comparison with other wood-based materials such as particle-board and OSB prospects for MDF for the year 2000 are considered very promising.     

关于提高中密度纤维板生产技术水平的意见

针对中纤板生产的特点和国内现状，提出三方面建议：提高生产设备的设计、制造水平，用拥有自主知识产权的设备来装备生产企业；提高生产企业的设计水平，以充分发挥设备能力和保证生产正常运行；提高生产企业的技术管理水平，实现高产、优质、低耗、安全、环保。     

Kontinuierliche Preßverfahren in der Spanplattenindustrie— MDF-Erzeugung auf einer kontinuierlichen Küsterspress in Neuseeland

From the viewpoint of raw wood supply and the delivery of cheap electric energy, New Zealand offers ideal preconditions for MDF manufacture. This paper describes a new production plant as well as the production process itself, from the wood harvest over the chip production until the finished board. Furtheron, it is roughly calculated, whether this product will be competitive in the European market, despite of the great distance of transportation.     

Gas pressure measurements during continuous hot pressing of particleboard

Knowledge about the development of the internal gas pressure during hot pressing of wood-based composites is important for the optimization of panel properties and production speed. The gas pressure heavily affects the thermodynamic conditions inside the wood furnish mat, and a too high maximum value at press opening might cause an impairment of the panel properties. In this paper, gas pressure and temperature measurements inside a particle mat while passing through a continuous hot press are presented for the first time. The measurements were performed with a transportable system, consisting of a steel tube attached to a miniature pressure transducer and a data logger. The particleboards had a target thickness of mainly 16 mm, but also of 28 mm and 38 mm, respectively. The measurements show a distinct horizontal gas pressure distribution in both directions, in production direction and across the mat’s width. In contrast, cross-sectional gas pressure gradients were only visible inside the panels after leaving the press. By comparing the gas pressure curves measured for particleboard with those for medium density fiberboard (MDF), characteristic differences became evident. Overall, the gas pressure is higher in MDF compared to particleboard. Finally, a comparison between the gas pressure levels measured for three different panel thicknesses showed a clear relation between panel thickness and gas pressure, with a decreasing panel thickness resulting in an increase in gas pressure. The results of this paper will contribute to our understanding about the events inside wood furnish mats during continuous hot pressing.     

浅谈中密度纤维板的纤维制备

从影响纤维质量的几种因素入手,通过分析其内在的机理,为中密度纤维板的纤维制造提供一些思路,增强中密度纤维板的内在质量。