模糊控制在纸浆模塑包装容器生产环节中的实现

纸浆模塑生产过程是一个典型的多变量、强耦舍、多干扰、时变复杂的系统。根据其控制过程中被控对象复杂而难以控制的特点。采用模糊控制策略构建了纸浆模塑包装容器生产环节中的软、硬件系统。     

信息短波

“林海”获ＩＳＯ９００２质量体系认证证书 林海集团十分重视质量管理规范化工作，努力与国际标准接轨。经过近两年持之以恒地宣贯ＩＳＯ９０００族标准，新年伊始，林海集团公司、林海股份公司、林海雅马哈公司、林海集团罡杨公司喜获ＩＳＯ９００２质量体系认证证书，从而为企业进一步开拓国内外市场奠定了良好基础。（倪振林） 大连绿山公司推出全自动纸浆模塑餐具生产线项具有节能、环保、高效、技术含量高、附加值高的全自动纸浆模塑餐具生产线，由大连绿山包装有限公司研制成功，日前产品通过国家包装产品质量监督检验中心（大连）的…     

纸浆模塑餐盒生产线

一种具有节能、工艺流程短、产量大、自动化程度高、投资少、无污染等特点的ＧＬ－ＺＳ—ＬＬ型纸浆模塑餐盒生产线，在山东淄博市淄川区昆化镇通过了省级鉴定，来自中国环境科学学会、中国兵器工业集团公司、山东工程学院等科研院校的十几名专家、教授一致认为，该生产线...     

纸浆模制品生产线

纸浆模制品生产线纸浆模制品是八十年代中期开始在我国发展起来的新型纸品包装材料，已广泛用于禽蛋、鲜果、玻璃、陶瓷、搪瓷制品、工艺品、电子元器件、医疗药品等包装材料和农用育秧床、营养钵。纸浆模塑制品生产线是生产纸浆模制品的专用机械，它可利用纸箱厂的边角余...     

ZMC-1.5型纸浆模塑制品全自动生产设备的设计

着重分析了ZMC-1．5型纸浆模塑制品全自动生产设备机械系统及其成型机构、热压机构、物料传送机构等的设计要点。该设备提高了纸浆模塑制品的产量和质量，降低了产品成本。     

我国纸浆餐具制品生产现状及对策

改革开放以来 ,随着国民经济飞速发展 ,我国包装工业取得了较大发展 ,国家环保政策不断完善和全民社会环保意识增强 ,消灭“白色污染”势在必行 ,为纸浆餐具制品提供了广阔前景 ,特别在 2 0 0 0年 7月1日之后全国禁止生产泡沫餐具 ,这样纸浆餐具如雨后春笋般发展壮大 ,也为我国食品包装行来增加了一支队伍。1　纸浆餐具制品现状纸浆餐具制品是从纸浆模塑制品发展演变过来的。纸浆模塑工业在一些发达国家已有 80多年历史 ,目前世界上法国、美国、加拿大、英国、新加坡等国家已有一定规模。我国纸浆模塑工业最近十几年才发展起来 ,1984年湖南…     

模塑纸浆产品——一种新型的包装材料

一、国内外情况介绍近年来,国际上有一种新型包装材料——模塑纸浆产品得到了推广应用。模塑纸浆产品是由纸浆按照被包装物品的部分外形模压而成。这种包装材料不仅在资本主义国家如英、法、日本等国应用广泛,在某些第三世界国家如印度也正在推广应用。     

纸浆模塑板在景观环境中的应用与开发研究

景观材料是园林景观设计的基础,合理运用景观材料是建设优质景观工程的前提。因此以可持续景观为指导思想,研制适用景观环境的新一种低碳节能材料纸浆模塑板,探讨纸浆模塑板的制作工艺技术,并重点研究分析纸浆模塑板在景观环境中的应用方式与应用效果。得出的结论是:纸浆模塑板在室外地面铺装与装饰小品中能大量应用与推广。它具有安全性、价格低、可普及性、美观性以及生态环保等特点,符合园林景观方面材料的要求。     

双层成型纸浆模塑餐具成型工艺影响因素的研究

以600mL纸浆模塑快餐盒为例，选择浆料浓度、真空度、第1次抽真空时间和第2次抽真空时间4个因素，通过正交试验及其试验结果的分析，研究对双层成型纸浆模塑餐具成型工艺的影响因素。结果表明，第二次抽真空时间及浆料浓度对成型工艺显著影响，第一次抽真空时间和真空度对成型工艺影响不显著。     

漆酶对杨木纸浆模塑包装材料抗张性能的影响

目的:利用NS51003漆酶对杨木CTMP浆进行生物酶处理,研究漆酶对纸浆模塑包装材料抗张性能的影响。方法:通过拉伸强度测试和红外光谱对纸浆模塑包装材料的强度及木素结构变化进行分析。结果:漆酶处理的最佳酶促反应条件为:漆酶用量8U/g浆;浆浓5%;pH值4.5;反应温度25℃;反应时间120min;通空气。结论:在此条件下漆酶处理杨木CTMP浆,纸浆中残余木素在漆酶处理过程中部分被氧化降解,纸浆模塑包装材料的抗张性能得到明显的提高。     

竹类ECMP模塑餐盒耐油性能研究

研究了用竹类ECMP生产模塑餐盒的耐油性能的形成机理，对实现耐油性能的工艺奈件进行优化。实验结果表明，竹类ECMP生产模塑餐盒是可以满足防油性能要求的，其耐油性能的形成更多依赖于细小纤维与助剂成膜后的性能。     

利用木质剩余物与废纸制备纸浆模塑材料的比较

对三种缓冲材料及利用木质剩余物一次纤维和废纸再生纤维制备纸浆模塑材料工艺过程进行对比。并利用扫描电镜观察热压干燥和真空干燥成型时,木质剩余物一次纤维与废纸再生纤维纤维形态结构的变化。结果表明：木质剩余物一次纤维纤维长度、宽度较废纸再生纤维得均匀,废纸再生纤维纤维表面有所损伤,纤维间的空隙增加,会导致与纤维间结合力有关的抗张强度、耐破强度和耐折强度等物理性能地下降。在生产实践中,要根据包装物的具体情况,选择合适的纸浆模塑原材料。     

模具结构对玉米秆粉粒杯形件成型的影响

就模具结构对玉米秸秆粉粒体材料压制杯形工件的影响进行了研究。结果表明，模具锥度越大，材料的流动成型性能越好；平底圆角模具比平底模具更有利于工件的成型。     

The Japanese pulp and paper industry: an analysis of financial performance from 1991 to 2001

This article discusses the determinants of profitability expressed as return on capital among Japanese pulp and paper companies. Return on capital is measured as income before tax related to stockholders’ equity. Return on capital has been divided into profit margin and asset utilization rate. The hypothesis is that return on capital can be explained by mill size, productivity, product line, financial situation, and use of wood resources. The dataset consists of 13 larger Japanese pulp and paper companies listed in Pulp &; Paper Statistics. Data on financial performance, production, and use of wood fibers were collected for the period 1991–2001. The average return on equity for the studied companies is 4.2%. Labor productivity has increased quite significantly, from about 600 to 1,000 kg/employee and year. An econometric analysis indicates that the best model fit is found when the asset utilization rate is used as the dependent variable. Significant variables are, among others, asset utilization rate lagged one time period (?), labor productivity (+), capital productivity (?), paper production as a share of total paper and board production (?), total value of assets on the books (?) and solidity (+). This may indicate that the total value of assets on the books is large in relation to the total production of paper, paperboard and pulp.     

Investigation on physical and mechanical properties of pulp–plastic composites from bagasse

High-density polyethylene (HDPE), bagasse fibers treated by four pulping processes (AS-AQ (alkaline sulfite anthraquinone), SODA-AQ (soda anthraquinone), MEA (monoethanolamine) and chemical–mechanical pulping (CMP)), three levels of nano-SiO₂ (0, 2, and 5?wt%), and maleic anhydride polyethylene as coupling agent were used to produce pulp–plastic composites (PPCs) by injection molding. The physical and mechanical properties of corresponding composites were evaluated according to ASTM standards. The results showed that compared to untreated bagasse/HDPE composite, the addition of bagasse pulp fibers increased significantly the mechanical properties such as tensile strength and modulus, flexural strength and modulus, and hardness. The chemical pulps-reinforced composites showed better mechanical strengths than that of CMP-reinforced composites, but in some properties, CMP pulp composites have comparable results to the chemical pulp-reinforced composites. Natural fibers (untreated and treated) increased water absorption and thickness swelling of composites compared to pure HDPE. The addition of nano-SiO₂ particles showed both increasing and decreasing trends on physical and mechanical properties ofPPCs.     

Application of micromechanical models to tensile properties of wood–plastic composites

Wood–plastic composites (WPC) were produced with white birch pulp fibers of different aspect ratios (length-to-diameter), high-density polyethylene, and using two common processes: extrusion or injection molding. Three additive levels were also used: no additive, compatibility agent, and process lubricant. Fiber size was measured with an optical fiber quality analyzer. Tensile properties of WPC were measured and modeled as a function of fiber aspect ratio. Models were fitted to experimental values using the minimum sum of squared error method. A shift from the oriented fiber case (injection molding) to the randomly oriented fiber case (extrusion) was achieved using a fiber orientation factor. Fiber/matrix stress transfer increased with increasing fiber aspect ratio. Stress transfer was reduced with the use of process lubricant. Unexpectedly, the compatibility agent had the same effect. Fiber strength and stiffness contributions to the composite were lower than those of intrinsic fiber properties.     

ZMCJ型系列纸浆模快餐具生产线可行性分析

分析了纸浆模快餐具的生产成本，对产品市场前景和生产线投资规模进行了预测，介绍了产品工艺流程及生产设备。     

竹丝模压刨花板生产工艺初探

以竹丝为原料,以脲醛树脂和石蜡等为辅助材料,在一定的工艺参数下进行模压,然后对模压板材的物理力学性能进行检测和评价。结果表明,本研究设计的工艺方案可行,制成的竹丝模压制品性能可以达到在干燥状态下使用的家具及室内装修用刨花板要求。经分析发现,模压温度是最大的影响因素。