关于当前设计铝箔工厂的若干问题

一、关于铝箔工厂建设项目可行性研究中的几个问题可行性研究是工程建设项目投资决策前进行技术经济论证的一门科学,它已正式列为我国基本建设程序中的重要阶段。今后的建设项目,必须上报可行性报告,经上级批准后,方可开展设计。可行性研究内容广泛,现就铝箔建设工程中的有关问题谈谈个人看法,供参考。     

五千吨钛及钛合金熔铸项目可研报告通过评审

最近，青海水电集团“五千吨钛及钛合金熔铸项目可行性研究报告”通过国家级评审。根据“5000吨钛及钛合金熔铸项目可行性研究报告”规划，这一项目将投入资金3．4亿元，从国外引进先进成熟、节能环保的电子束冷床熔铸技术，在18个月内建成一家年产5000吨钛锭及钛合金锭、年收入达到8亿元左右的有色金属熔铸加工企业。来自北京有色金属研究总院、西宁特殊钢集团、     

金浔刚果(金)10000吨阴极铜3000吨氢氧化钴湿法项目可行性研究报告及设计方案先后通过评审

2021年底,金浔刚果(金)矿业责任有限公司(以下简称金浔公司)邀请业内专家在云南昆明召开报告评审会议,就《金浔刚果(金)矿业责任有限公司10000吨阴极铜3000吨氢氧化钴湿法冶炼项目》可行性研究报告进行了审查.     

沈阳铝镁设计研究院在部级优秀工程评选中获得殊荣

由中国有色金属建设协会组织完成的2007年度部级优秀工程咨询成果奖和优秀工程设计奖的评选工作已经完成，此次共评出优秀工程咨询成果奖21项，其中一等奖8项，二等奖11项。三等奖2项。评出优秀工程设计奖38项。其中一等奖11项，二等奖17项，三等奖10项。沈阳铝镁设计研究院（中国铝业中州选矿拜耳法系统扩建工程可行性研究报告）、（大港油田集团有限责任公司200kt／a煅烧焦项目可行性研究报告）均获优秀工程咨询一等奖。（霍煤集团霍煤鸿骏铝电有限责任公司霍煤鸿骏电解铝工程）获优秀工程设计一等奖。     

中国铝业新疆能源开发一体化项目可行性研究报告通过评审

2011年10月27日,沈阳铝镁设计研究院有限公司编制的中国铝业新疆能源开发一体化项目可行性研究报告通过了由新疆维吾尔自治区发改委组织专家进行的审查。与会领导及专家以严谨、务实、负责的态度,从项目工艺可行性、节能降耗、环保低碳、经济适用、装备水平先进性等诸多     

浅谈工程建设项目可行性研究

可行性研究是工程建设项目前期工作中不可或缺的重要内容之一,对投资决策中发挥着重要作用,但在实际工作中工程建设项目的可行性研究仍然存在不少问题。本文叙述了可行性研究的必要性及存在的问题,并提出了解决问题的对策。     

巴林铝业公司拟扩建第六电解系列

<正>巴林铝业公司(Alba)拟扩建第六电解系列,现正在进行银行融资可行性研究报告。该公司现有原铝生产能力880kt/a,扩建生产能力400kt/a,巴林铝业公司现有5台DX+电解槽,运行情况良好,扩建工程拟全部采用DX+电解技术,它的电流强度为440kA。银行融资可行性研究由加拿大贝奇特尔公司(Bechtel)承担,可于2013年第三季度完成。     

新疆煤矿区地质灾害危险性预测评估探讨

通过对煤矿区地质勘查报告、可行性研究报告中矿井开采方法、开拓方案、覆岩性质和洞室稳定性分析等,运用岩体力学原理,综合引用规范方法,定量分析由于井巷开采后引发采空塌陷的可能区域,预测所分析区域内地质灾害的影响程度、易发范围和危险性大小,既为评估区的矿山地质灾害危险性评估进行了补足充实,也是对极具特点的新疆煤矿区开采所引发地质灾害的定量预测评估方法进行有益探索。     

摩根大通建立亚洲储藏库

可行性研究报告称，作为加拿大最大的尚未开发的金矿——Detour黄金公司的DetourLake金矿（位于安大略省东北部），可年产黄金64．9万盎司，开采年限为16年。一份由魁北克工程顾问公司BBA做的可行性研究报告称，DetourLake金矿有可能成为安大略省的最大金矿和加拿大的第二大金矿。     

消息报道

1986年4月16～17日,在北京召开了“七五”国家重点科技攻关项目《柔性制造技术系统和设备的开发研究》第74—3课题《柔性控制系统技术开发》可行性研究报告专家论证会。参加会议的有机械部、国家教委、科学院、电子部、航空部、航天部等31个单位51位专家。会议由机床工具局王恒智总工程师主持,对报告进行了论证评议。首先听取了本子项课题可行性报告的介绍及说明,然后对该课题“七五”攻关任务、目标、完成“七五”目标的具体措施和步骤、联合攻关方法、组织形式等进行了论证。     

铸造企业技术改造的要点

对当前我国铸造企业技术改造中存在的问题进行了分析，指出铸造企业进行技术改造的目的可以归纳为提高能力、提高劳动生产率、提高产品质量、降低排放改善环境、降低能耗和达到可持续性生产，认为铸造企业进行技术改造的要点是：产品的市场调研、项目的可行性研究、稳妥的资金保障和严格的施工管理。     

The Irradiation Performance and Microstructural Evolution in 9Cr-2W Steel Under Ion Irradiation

Grade 92 steel (9Cr-2W) is a ferritic-martensitic steel with good mechanical and thermal properties. It is being considered for structural applications in Generation IV reactors. Still, the irradiation performance of this alloy needs more investigation as a result of the limited available data. The irradiation performance investigation of Grade 92 steel would contribute to the understanding of engineering aspects including feasibility of application, economy, and maintenance. In this study, Grade 92 steel was irradiated by iron ion beam to 10, 50, and 100 dpa at 30 and 500 °C. In general, the samples exhibited good radiation damage resistance at these testing parameters. The radiation-induced hardening was higher at 30 °C with higher dislocation density; however, the dislocation density was less pronounced at higher temperature. Moreover, the irradiated samples at 30 °C had defect clusters and their density increased at higher doses. On the other hand, dislocation loops were found in the irradiated sample at 50 dpa and 500 °C. Further, the irradiated samples did not show any bubble or void.     

基于3D模型的数控机床主轴箱装配和运动仿真研究

在数控机床主轴箱的设计中,采用三维设计方法,利用Pro/E对其进行了三维实体建模及装配设计,并通过动态仿真和干涉分析,以验证设计方案的可行性.该方法提高了产品的设计质量和设计效率,为产品的结构优化设计提供了有效的途径.     

Neural network solution of the inverse vibration problem

The feasibility of using general regression neural networks (GRNN) to solve the inverse vibration problem of cracked structures was investigated. The case study used in the investigation was a steel cantilever beam with a single edge crack. The first six natural frequencies were used as network inputs, and crack size and crack location were the outputs. The effect of the number of frequency inputs to the network on prediction accuracy was quantitatively evaluated. The results show that GRNN is a powerful instrument for predicting crack size and location over a wide range, and that the prediction accuracy increases with larger number of vibration modes.     

电火花强化工艺制造金刚石镀层实验研究

为实现金刚石工具的快速制造和在线快速修复,探索了一种简单快速的金刚石表面强化工艺方法的可行性。以金刚石颗粒和钴颗粒为主要成分,采用压制工艺制作电极,并用该电极在基体材料304不锈钢板上进行电火花强化实验,探究电极的压制压力、金刚石含量、加工电流和加工时间等参数对实验效果的影响规律。用镀钛金刚石电极加工5 min,可得到表面上金刚石颗粒的表面积分数为13.5%、厚度为400μm的强化层,且该强化层具有很好的磨削性能。     

RETRACTED: Ambipolar organic devices for complementary logic

This article has been retracted at the request of the editor.Reason: This article is retracted on the basis of the findings in the “Report of the investigation committee on the possibility of scientific misconduct in the work of Hendrik Schön and co-authors” September 2002 (the so called Beasly report).The investigation committee concludes for this article that the preponderance of evidence indicates that Hendrik Schön committed scientific misconduct, specifically data falsification and/or fabrication, in this case. The committee also concludes that, “as a result, it is not possible to confirm or to refute the fundamental physical claims in the papers in question — claims that Hendrik Schön maintains are valid despite admitted manipulation and misrepresentation of data, which he acknowledges he should not have done”.     

The deposition of yttria partially stabilised zirconia (PYSZ) onto aluminum alloy substrates using PVD techniques

Yttria partially stabilised zirconia (PYSZ) has been shown to be a very effective material for use as a thermal barrier coating (TBC) in the aerospace industry. In the future however, TBCs will be used increasingly in internal combustion engines, in particular for adiabatic diesel engines and also in increasing the operating temperature of exhaust gases to enable the more efficient operation of catalytic converters. Internal combustion engines are likely to be increasingly manufactured from aluminium alloys, and this paper is therefore a report of a preliminary investigation looking at the feasibility of depositing PYSZ onto such materials using the r.f. PAPVD technique, employing electron beam evaporation and a 13.56 MHz r.f. power supply.

Of particular interest in this work is the effect of the sputter etching times on the substrate, in terms of the adhesion and properties of the coating. The coatings have been tested with respect to their phase composition, microhardness, adhesion, thickness and surface morphology using a range of techniques including X-ray diffraction, EDX, SEM, ball cratering, microhardness testing, surface profilometry and scratch testing. The main results from these tests are reported.     

小打鹅尾矿库排洪设施的优化设计

根据尾矿库工程地质勘察报告,结合现有地形、地质情况将尾矿库汇水区域合理划区分块进行截排和导流,减少了入库洪水,减轻了库内排洪压力,体现了优化设计方案的合理性、优越性,达到了安全、环保、经济的统一。     

Investigating cooling curve profile and microstructure of a squeeze cast Al–4%Cu alloy

Cooling curves were obtained to estimate solidification parameters of a squeeze cast Al–4%Cu alloy under different processing conditions, while microstructural analysis was carried out to investigate grain morphology obtained for the different test runs. The results indicated not only an increase in cooling curve gradient with increase in pressure, but also a change in cooling curve profile with changes in superheat and die temperature. Solidification range was also affected with an increase in liquidus when superheat was high while solidification rate was decreased when superheat was low and die temperature was increased. Microstructure showed refinement, dendritic growth formation and a suppression of both precipitated phase as well as micro-segregation with an increase in cooling rate due to application of pressure. The investigation is expected to provide important insight into the solidification behavior under pressure of an Al–4%Cu alloy that can be used to evaluate its casting feasibility as well as give basic input information for simulation purposes.     

Titanium diboride-metals gradient materials prepared by field activated diffusion bonding process

Functionally gradient samples are prepared by getting metal Ni or Cu bonded with Ni-matrix composites reinforced by TiB_2 particles by field activated diffusion bonding process.The intermetallic compound of Ni_3Al has been applied as a mediate layer in order to reduce residual stress.The microstructure,phase composition of the interfaces between the metal and Ni_3Al are determined and the mechanical properties of the gradient materials are characterized.Elemental concentration profiles across the interfaces between layers showed significant diffusion dissolution and formation of firm bonds.Measured micro-hardness values of the sample increased monotonically from the metal substrate to the surface layer of composites.The values for the surface composite layer ranged from about 2 000 HK to 3 300 HK.The results of this investigation demonstrate the feasibility of field activated diffusion bonding process for rapid preparation of FGMs.