喷蒸-真空热压技术在厚型中纤板制造中的应用  

Steam Injection-Vacuum Hot Pressing Method for Producing Thick Medium Density Fiberboard

作　　者：金菊婉[1] 陈德忠 徐咏兰[1] 

机构地区：[1]南京林业大学木材工业学院,江苏南京210037 [2]福建省永定紫金木业有限公司,福建永定县364101

出　　处：《木材工业》2009年第3期5-8,共4页China Wood Industry

基　　金：国家林业局科技成果推广计划项目“厚型中高密度纤维板制造技术”(2006-81);

摘　　要：针对传统热压法生产厚型MDF板存在板坯芯层升温速度慢、热压时间长等问题,研究成功以喷蒸-真空热压技术为核心的厚板制造技术,并用于国产多层普通MDF生产线的改建。采用该技术,制板热压时间大大缩短,生产能力显著提高。改建线生产的厚度为30、35 mm的中纤板,经检测可达到GB/T 11718-1999的要求。Conventional hot pressing has been commonly used in manufacturing thin medium density fiberboard. However, when manufacturing thicker medium density fiberboard, it is found to take a longer pressing cycle to transfer the heat from the surfaces of the panel to the core. The steam injection-vacuum hot pressing technique was developed to improve pressing efficiency and productivity. This steam injection-vacuum technique was modified and adopted in this study to accommodate a domestic medium density fiberboard production line. It was found that this modified line had improved production capacity and the performance of products, with nominal thicknesses of 30 mm and 35 mm, exceeded the specifications of China＇s national MDF product standard GB/T 11718-1999.

关 键 词：喷蒸-真空热压 厚型中密度纤维板 热压时间 

分 类 号：TS653.6[轻工技术与工程]