从铅阳极泥中回收金银新工艺

随着国家产业政策调整,市场经济体制的进一步深化,日趋激烈的市场竞争使得企业必须进行技术创新,落后的生产技术和冗余的加工工艺已完全不能满足市场需求。     

从铅阳极泥中回收金银新工艺

随着国家产业政策调整,市场经济体制的进一步深化,日趋激烈的市场竞争使得企业必须进行技术创新,落后的生产技术和冗余的加工工艺已完全不能满足市场需求.     

优质改性高锰钢生产新工艺

优质改性高锰钢生产新工艺的核心是将分级变质处理、复合孕育处理和微合金化技术三位一体,互为作用。在实现组织明显改善的同时,使材料的综合性能得到全面提升。     

一种模拟渗碳-淬火-回火全工艺流程的新方法

分别介绍了渗碳、淬火和回火热处理工艺模拟的数学模型,并在此基础上通过碳浓度、温度、组织和应力应变结果等的传递,以及对后续热处理模拟参数的必要修正,结合有限元原理实现了对渗碳-淬火-回火全工艺流程的数值模拟,为这种连续热处理工艺的设计与分析提供了新方法。     

中大口径高合金钢无缝管材生产新工艺研究

阐述了采用“离心浇铸空心坯＋管坯特殊处理＋热辊模连续顶轧成形”短流程工艺生产中大口径高合金钢管材的新方法：通过对试制管材的力学性能、腐蚀性能和金相组织的观察,表明本短流程新工艺由于突破了穿孔的固有局限,适合生产难变形的高端管材,且管材具有优良的综合使用特性;节能降耗的优势明显（粗略估计可节能节燃料各10％）。     

快速原型与铸造技术的集成成形制造

在介绍快速原型技术的基础上,提出了快速原型与铸造相集成的快速零件／模具制造工艺,可以实现零件／模具的快速精确成形制造。通过案例分析了快速原型技术在铸造中的应用,认为该技术在铸造行业中具有广泛地应用前景。     

新型导电纤维电缆制作工艺

介绍以合成纤维长丝为原料,对其表面进行一系列的物理化学处理后,均匀地镀上一层附着力很强的金属层,使其非导体变成电的良导体,以此线芯制成新型导电纤维电缆。对该电缆线芯之导电性、镀层厚度、强度、抗弯性及可焊性进行了检测,同时利用电镜对其表面形貌进行了观察。结果表明,新型导电材料性能优良,各项指标满足使用要求,可以代替铜导线在微电流范围内使用。     

优质高铬白口铸铁生产新工艺

介绍将变质处理、孕育处理和微合金化技术结合使用于优质高铬白口铸铁生产的新工艺。其特点是在铸态实现马氏体基体,通过亚温处理进一步改善组织,提高材料的综合性能。     

模具加工工艺的编制

介绍了模具工艺编制的基本原则与注意事项,并对各类零件的加工进行了说明。     

汽车顶盖天窗模具调试方法及新工艺的应用

结合实际应用介绍了汽车顶盖天窗模具成形的调试方法及新工艺的应用,以旧工艺方法与优化后的工艺方法分析讨论,有效的改善了汽车顶盖天窗制件在拉伸成形过程中的一些问题。     

Integrated Virtual Manufacturing Systems for Process Optimisation and Monitoring

The implementation of an Internet-based Virtual Manufacturing facility for the development and optimisation of new manufacturing processes is presented. The facility integrates advanced process simulation software, a remote machine monitoring system and multimedia technologies to realise a virtual environment for manufacturing process optimisation. Utilising physics-based process simulations, process parameters and operational sequences are evaluated and optimised with respect to desired product features. Having optimised the operation, a prototype of the part can be created at the facility. During prototyping, process parameters are monitored in real-time. A Case Study is presented, where a 3-axis milling operation is defined, optimised and executed using the facility.     

Controlled Nucleation Method:A New Process for Semisolid Metal Forming

Semisolid metal forming requires special feedstock material with a fine-grained and globular structure to achieve thixotropic properties. A number of methods have been developed to produce such feedstock materials. Controlled Nucleation Method (CNM) is a new and simple, cost effective method that has been developed by the University of Queensland. The CNM process does not use the conventional stirring process, instead, it uses solidification conditions to control nucleation, nuclei survival and grain growth, thereby produce fine and globular structures suitable for semisolid forming. No specialised equipment is required. The method can produce both semisolid slurry for rheocasting and semisolid billet for thixocasting. It can be applied to a wide range of alloys and can easily be incorporated into existing metal forming installation. Semisolid slurries/billets of hypoeutectic and hypereutectic aluminium-silicon casting alloys, aluminium wrought alloys and a magnesium alloys have been successfully produced.     

空调压缩机阀板加工工艺与精冲技术

对空调压缩机阀板两种不同加工工艺进行了分析对比,并介绍了一种双面阀线阀板的典型加工工艺,对所涉及的精冲模具以及精冲技术作了重点说明。     

螺旋缝焊管带钢递送跑偏的原因及应对措施

结合生产现场实际情况,通过对递送机机构的分析,指出造成带钢递送跑偏的部分原因,包括递送辊偏磨、递送机传动系统的自重及递送压力作用等因素;提出相应的应对措施,从而有效防止带钢在递送过程中跑偏;建议在新建螺旋缝焊管机组时应考虑将递送机的主传动机构放在递送机两侧,增加递送前导板装置等设备,合理选用液压压下装置,提高设备的安装精度,以减小带钢递送跑偏的可能性.     

An Incremental Roll Forming Process for Manufacturing Doubly Curved Sheets from General Quadrilateral Sheet Blanks with Enhanced Process Features

In order to manufacture a doubly curved sheet metal effectively, a flexible incremental roll forming process has been developed by adopting the advantages of the incremental forming process and the roll forming process by combining inherent flexibility of the incremental forming process and continuous deformation of the roll forming process. In the proposed roll forming system, a newly designed gripper system is attached in order to achieve automation and more precision manufacturing of the required sheet intended double curvature. The forming method has been further enhanced to form general quadrilateral blanks (including a square, a rectangle, a symmetrical trapezoid and an asymmetrical trapezoid, etc.) into doubly curved shapes by controlling the forming schedule developed by various experiments.     

废油制作羟基酸型(芯)砂粘结剂的方法与应用

介绍了一种用机械油、绝缘油、柴油机油、汽轮机油、汽缸油等各种废油制作羟基酸的方法及其作为型（芯）砂粘结剂的应用。该粘结剂制作简单，成本低，能够代替其它粘结剂如热芯盒树脂、植物油等用于铸件生产，并可实现废物利用。     

锁紧盖板注射模设计与制造工艺

针对锁紧盖板的结构特点,详细介绍锁紧盖板的注射模设计,以及成型部件设计、工艺分析加工,解决了锁紧盖板成型试模后出现的飞边问题。     

Process Control Strategies for Dual-Phase Steel Manufacturing Using ANN and ANFIS

In this research, a comprehensive soft computational approach is presented for the analysis of the influencing parameters on manufacturing of dual-phase steels. A set of experimental data have been gathered to obtain the initial database used for the training and testing of both artificial neural networks (ANN) and adaptive neuro-fuzzy inference system (ANFIS). The parameters used in the strategy were intercritical annealing temperature, carbon content, and holding time which gives off martensite percentage as an output. A fraction of the data set was chosen to train both ANN and ANFIS, and the rest was put into practice to authenticate the act of the trained networks while seeing unseen data. To compare the obtained results, coefficient of determination and root mean squared error indexes were chosen. Using artificial intelligence methods, it is not necessary to consider and establish a preliminary mathematical model and formulate its affecting parameters on its definition. In conclusion, the martensite percentages corresponding to the manufacturing parameters can be determined prior to a production using these controlling algorithms. Although the results acquired from both ANN and ANFIS are very encouraging, the proposed ANFIS has enhanced performance over the ANN and takes better effect on cost-reduction profit.     

核电站核岛大型铸锻件制造工艺评定方法研究的意义

为实现核岛大型铸锻件的国产化,在保证质量的条件下实现批量化生产,不仅需要制造厂在制造技术上进行创新,还需要成功完成核岛大型铸锻件制造工艺的技术评定。通过对目前国内制造工艺评定技术现状、评定工作的重要性和可行性进行分析,明确了核岛重要部件工艺评定范围。深入了解工艺评定对核岛主设备国产化具有重要意义。