共查询到20条相似文献,搜索用时 156 毫秒
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《Planning》2019,(21):39-40
文章在对某企业自动化冲压生产线进行充分研究的基础上,设计了一套冲压生产线设备管理系统。本系统利用计算机系统来控制设备管理的整个流程,冲压生产线的产品数量、开始时间及主要设备故障等均通过现场总线从冲压设备的主控PLC中读取出来,同时上位机的生产控制指令将通过现场总线网络传送到控制设备,从而实现冲压线设备的信息化管理。 相似文献
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《Planning》2019,(15)
随着汽车轻量化的发展,高强钢热成形工艺的发展和普遍应用,对热冲压成形生产线也提出了新的要求。在保证生产线高效运行的同时,生产过程中的安全性、自动化设备的工作状态及工作人员安全都能够通过实时监测和智能分析好得到更大的保证。 相似文献
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王民 《墙材革新与建筑节能》2005,(5):47-48
ZW轻板自动化生产线是由北京紫微斯达建材机械制造有限公司于2002年开发研制成功的,实现了轻板的自动化、规模化、精密化、清洁化生产。几年来的应用实践表明,ZW轻板自动化生产线自动化程度高。设备运转可靠,标准化、通用化程度高;设备价格低,生产线运行成本低;能生产多种规格轻板。生产出的板材具有几何尺寸精确,制品出腔密实度高、干缩比小。 相似文献
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《Planning》2022,(1)
轧钢冲压生产线模拟装置可以模拟完成钢材的轧制、冲压等工艺流程,该装置由液压及气动系统结合PLC控制系统完成对其机械组成部分的驱动控制。由于该设备涉及机、电、液、气一体化技术,非常适合作为高校机电相关专业学生的综合实训设备。文章分析了整个装置的工作循环以及工况和负载,确定了液压系统方案,完成了轧钢冲压生产线模拟装置液压系统压力、流量等参数的计算,对工件传输模块及轧制、顶料和冲压模块主要液压元件的选择。 相似文献
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在国家节能减排政策的推动下,新型墙体材料的使用量增长迅速,随着信息技术的发展,生产过程自动化在现代墙材行业的发展中占据了举足轻重的地位,以信息化带动产业化已经成为新型墙材生产领域企业提高综合竞争力,在竞争中立于不败之地的共识,新型墙材生产装备的自动化智能化水平得到了持续发展。文章以新型墙材中的蒸压粉煤灰砖生产为主要应用领域,对其生产过程中涉及到的主要自动化设备系统和应用技术进行了介绍和讨论,并对未来发展趋势进行了分析。 相似文献
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本文所论工程1000kV淮南-上海(皖电东送)输电线路,是我国第1条百万等级的双回路特高压线路,电压等级高、导线截面大、平均塔高超过110m,采用钢管塔结构技术经济优势明显。加工产能是制约钢管塔应用最主要的原因,本工程设计中,在广泛调研和充分吸收国内外先进设计理念的前提下,提出了钢管塔标准化设计,应用带颈锻造法兰、标准化插板管头并规范和统一了可供设计选用的钢管系列规格库,为皖电东送工程钢管塔设计的安全可靠、制造加工的规范高效创造了条件。本文同时论述了工程进行的1基科研试验塔、8基工程真型塔和1基Q46科研试验塔的真型实验,以及相关的钢管、法兰、插板、节点、高强度螺栓等一系列试验研究。试验结果进一步指导和完善了钢管塔的设计,在计算模型、主材径厚比、结构布置、加劲板设置和构造处理等方面对钢管塔设计有了新的理解和认识。 相似文献
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磁控溅射铝镜生产线经过合理设计配置了真空溅射镀膜段,自动化程度高,大幅度降低了磁控溅射铝镜生产线的造价,实现了磁控溅射铝镜的低成本、高效率生产,是制镜行业生产设备的转型升级,也进一步实现了大型镀膜设备的国产化。该文针对在真空镀铝过程中经常遇到的问题做了简要阐述,同时针对这些问题给出了相应的修改建议。 相似文献
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Evaluation of environmental burdens caused by changes of food waste management systems in Seoul, Korea 总被引:2,自引:0,他引:2
During the last decade, there have been remarkable changes in food waste management in Korea following a ban on direct landfilling. To evaluate the environmental impacts of food waste management systems, we examined individual treatment systems with the LCA approach -- landfill, incineration, composting, and feed manufacturing -- and estimated the change from 1997 to 2005. The efficient system was different in each impact category, but it was evaluated that landfill is the main contributor to human toxicity and global warming (based on fossil CO(2)). In contrast, due to the increase of food waste recycling, acidification, eutrophication, and fresh water aquatic ecotoxicity impact was increased. Especially, the high energy consumption and generated residue in recycling systems caused the large burdens in toxicity categories. 相似文献
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智能制造将是我国水泥工业发展的必由之路。本文通过对水泥智慧工厂信息系统总体架构设计,生产基础自动化系统建设,信息网络云平台建设三部分内容的阐述,设计建设集生产运营、智能巡检、远程运维及大数据分析的信息网络云平台,实现水泥生产装备智能化,控制自动化,管理信息化,构建一个高效节能、绿色环保、环境舒适的水泥智慧工厂。 相似文献
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异地建造和建筑信息模型(BIM)等技术在减少材料浪费等方面为建筑业带来了效益,并为可持续建造提供了解决方案。但轻型框架建筑行业仍产生大量的建筑废弃物。因此,本文提出一种基于BIM的自动化方法,通过装配式建筑屋顶覆盖层安装设计,减少覆盖材料浪费。设计基于BIM的覆盖层布局设计算法,实现了施工设计的自动化,并对生成的布局进行优化,以最大限度减少覆盖层材料浪费。本文结合两个实例验证该方法在减少屋顶覆盖材料浪费方面的可行性和有效性。 相似文献
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《Construction and Building Materials》2005,19(5):337-346
Like other construction materials, shingles have their own service life based on raw materials, production method and environmental and climatic conditions. At the end of their service life, shingles need to be replaced. However, these old shingles together with manufacturing scrap and handling waste require large storage areas and pollute the environment in time. Hence, additional usage of shingle waste is desirable. In this study, shingle waste in amounts of 1%, 2%, 3%, 4% and 5% by weight was added as an additive to asphalt concrete mixes prepared with the optimum binder content which yielded the best stability value was 5%. After determination of the optimum percentage of shingle to be added, rutting tests were performed on the specimens. Taking into account, the binder content existing in the shingle, mixtures were prepared with the reduced binder content by 0.5% and 1.0%. Test results show that waste shingles can be used in HMA as an additive to improve the Marshall stability and rutting resistance of the mixtures. 相似文献
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Henric Jonsson 《Construction Management & Economics》2013,31(1-2):53-69
The purpose is to develop a matrix for classifying production systems for construction with various degrees of industrialization. Previous attempts to classify industrialized production systems for construction focus on dimensions such as the design process, the product technology, or the supply chain structure, but none of them acknowledge the importance of how orders are actually won in the market and that different market segments have different requirements. Using production strategy theory as a base, a matrix is developed linking market requirements, via the product offering, to the design of the production system. The matrix positions typical production systems based on their respective degrees of product standardization and volumes relative to the degree of offsite production. Similar to production systems in manufacturing, production systems for construction also deliver manufacturing outputs at different levels, indicating that the choice of production system will affect the competitiveness of the company. The applicability of the matrix is exemplified through three case illustrations of concepts for industrialized building, and these show that the matrix can be used to analyse the production systems’ relative strengths and weaknesses. The matrix can also be used as a guide when developing new, or adjusting existing, production systems for industrialized building so that they will match market requirements and offer competitiveness. 相似文献