M8011H16铝合金防盗盖板生产工艺研究

研究了元素含量变化对8011铝合金防盗盖板综合性能的影响，在8011合金中改变Cu、Mn元素含量后可提高防盗盖板的强度，同时研究了烘烤处理后的强度变化问题。本文研究出了8011铝合金防盗盖板新的生产工艺制度。     

颜料灌装机的创新设计

简述了颜料灌装机的设计任务;从功能分析及工艺动作分解入手,逐步构思出5套设计方案;分别论述了各方案的优缺点,最终确定了该设计任务的理想创新解。     

易拉盖多工位自动送料级进模设计

为了解决新发明易拉盖的实际生产问题,并且应用多工位级进模这种高效率的冷冲压模具进行生产,设计制造了易拉盖级进模具.从易拉盖的成型工艺、材料的排样、模具结构、主要模具零件的设计等几方面介绍了易拉盖多工位级进模的设计和制造,通过使用双重导向形式,实现在国产冲床导向精度较低的情况下,能够达到零件的精度要求.并且对模具制造过程中精细零件的加工方法进行了讨论.对在多工位级进模中的落料和拉深复合模的退料问题提出了一种解决方法．     

化学计量成分NiAl合金的价电子结构

NiAl有序金属间化合物密度低、抗氧化性好 ,有望在 12 50℃的高温领域应用 .应用固体与分子经验电子理论(EET)研究了B2结构化学计量比成分NiAl的价电子结构 .在用键距差方法计算时 ,共考虑了六种共价键 .计算结果表明 ,有 3 0种原子状态符合键距差小于 0 .0 0 5nm这一判据 .根据键距差最小原则确定NiAl中实际的原子状态 :Ni的杂阶为B型杂化 12阶 ,Al的杂阶为 6     

声表面波滤波器封盖技术的研究

声表面波滤波器（SAWF）广泛应用于有线和无线通讯中，声表面波滤器的封盖过程对声表面波滤波器的性能有着非常重要的影响，炉内气氛的选择，封盖过程中的温度控制，炉内气压的控制是影响封盖质量的主要因素，选择氮气95％，氢气5％的混合气体封盖，并采用合适的温度曲线可以得到很好的封盖结果。     

穆兴平原北区浅层地下水水化学分布特征 及其形成机理

采用2016年8月采集的192个地下水样品水化学数据,查明了穆棱河—兴凯湖平原(穆兴平原)北区第四系浅层地下水溶解性总固体(TDS)和地下水化学类型分布特征,并结合研究区水文地质条件和人类活动影响分析其形成原因。结果表明:穆兴平原北区浅层地下水主要以TDS小于0.5g/L的淡水为主,未见TDS大于1.0g/L的微咸水。地下水TDS受含水介质、溶滤作用和地表水-地下水交互作用影响,在区内呈多种分带规律。区内浅层地下水化学类型不具备明显的水平分带规律,主要以HCO_3-Ca·Mg型水为主,与人为活动较少的20世纪60年代背景水化学类型(HCO_3-Ca·Na型水)对照,地下水中硫酸根、氯离子及镁离子的增加与煤矿开采、生活用水污染及大范围农业施肥等人类活动相关。     

平行缝焊与盖板

在一些特殊环境条件下使用的各种电子元器件,需要进行密封封装,以防止器件中的电路因潮气、大气中的离子、腐蚀气氛的浸蚀等引起失效。另外在封装时可以充以保护气体来降低封装环境湿度,进行气密性封装以延长器件的使用时间。文章通过在SSEC（Solid State Equipment Company）M-2300型平行缝焊机上进行缝焊实验发现,盖板与平行缝焊的关系是相当重要的。在管座性能稳定的情况下,盖板质量的好坏直接影响着器件的气密性。     

Compositional GC-FID analysis of the additives to PVC, focusing on the gaskets of lids for glass jars

A gas chromatographic (FID) method is described which aims at the quantitative compositional analysis of the additives in plasticized PVC, particularly the plastisols used as gaskets for lids of glass jars. An extract of the PVC is analysed directly as well as after transesterification to ethyl esters. Transesterification enables the analysis of epoxidized soya bean and linseed oil (ESBO and ELO) as well as polyadipates. For most other additives, the shifts in the chromatogram resulting from transesterification is used to confirm the identifications made by direct analysis. In the gaskets of 69 lids from the European market used for packaging oily foods, a broad variety of plastisol compositions was found, many or possibly all of which do not comply with legal requirements. In 62% of these lids, ESBO was the principal plasticizer, whereas in 25% a phthalate had been used.     

Migration of epoxidised soybean oil from PVC gaskets of commercial lids: simulation of migration under various conditions and screening of food products from Czech markets

Previous studies have shown that a large number of polyvinylchloride (PVC) lid gaskets exceed the existing migration limits for epoxidised soybean oil (ESBO) and correct prediction of ESBO release into food therefore appears to be a difficult issue. ESBO migration from PVC gaskets of metal closures into food simulants and food products from the Czech market is evaluated during a survey in 2009 and subsequently one in 2012 to assess progress in lid manufacturing and official testing conditions. ESBO migration from lids into various food simulants was studied at various temperatures (25, 40 and 60°C) during storage times up to 12 months. ESBO released into food simulants or food products was transmethylated, derivatised and analysed by GC-MS. The levels of ESBO migration in foodstuffs in 2012 exceeded the specific migration limit (SML) in fewer products in comparison with the previous survey. However, most of the products were analysed at a time far from the expiry date and exceedance of the SML at the end of the product shelf life is not therefore excluded. More severe test conditions (60°C for 10 days) for specific migration given by the current European Union legislation (Regulation (EU) No. 10/2011) still seem to be insufficient for the simulation of ESBO migration during long-term storage.