MGB-24真空镀膜机的计算机控制   总被引：1，自引：0，他引：1  

沈延山  陈辉  贾工普 《大连大学学报》1996,(4)

为满足装修行业的需要,我们研制成功我国第一台能镀6m长不锈钢管的24弧大型卧式真空离子镀膜机,该设备的规模较大操作程序复杂,为减轻操作者的劳动强度,保证设备的可靠运行,我们对该机实行了计算机控制,该控制系统采用二级控制,其中上位机采用IPC工业计算机,下位机采用STD工业控制计算机,共完成84个开关量和50个模拟量的控制,本文主要介绍我们在这方面进行的一些工作。  相似文献   

变压器引线绝缘成型件工艺研究     

宣白云  陈震 《泰州职业技术学院学报》2008,8(1):7-9

绝缘成型件是制造超高压输变电设备的关键部件之一.根据绝缘成型件的特征及主要技术参数,充分利用工厂现有条件,探索并确定了生产工艺流程,重点解决了关键工艺的技术参数、真空成型.  相似文献   

减压渣油掺炼乙烯重焦油共焦化试验     

梁朝林  沈本贤  谢颖  吴世逵 《茂名学院学报》2008,18(1):7-9

将减压渣油、乙烯重焦油以及它们的掺兑物在管式焦化反应器中进行共焦化反应.结果表明,在减压渣油中掺兑乙烯重焦油技术可行,而且还可稍微降低生焦率和气体收率,提高液体油收率.在减压渣油中掺兑乙烯重焦油,有望成为扩大乙烯重焦油利用的一种途径.  相似文献   

无油真空系统在荧光显示管生产中的作用     

张立新 《湖南师范大学教育科学学报》1998,(2)

本文主要研究用无油真空系统作为排气方法在荧光显示管生产中的作用．  相似文献   

Vertical stream curricula integration of problem-based learning using an autonomous vacuum robot in a mechatronics course     

Cheng Chin  Keng Yue 《European Journal of Engineering Education》2011,36(5):485-504

Difficulties in teaching a multi-disciplinary subject such as the mechatronics system design module in Departments of Mechatronics Engineering at Temasek Polytechnic arise from the gap in experience and skill among staff and students who have different backgrounds in mechanical, computer and electrical engineering within the Mechatronics Department. The departments piloted a new vertical stream curricula model (VSCAM) to enhance student learning in mechatronics system design through integration of educational activities from the first to the second year of the course. In this case study, a problem-based learning (PBL) method on an autonomous vacuum robot in the mechatronics systems design module was proposed to allow the students to have hands-on experience in the mechatronics system design. The proposed works included in PBL consist of seminar sessions, weekly works and project presentation to provide holistic assessment on teamwork and individual contributions. At the end of VSCAM, an integrative evaluation was conducted using confidence logs, attitude surveys and questionnaires. It was found that the activities were quite appreciated by the participating staff and students. Hence, PBL has served as an effective pedagogical framework for teaching multidisciplinary subjects in mechatronics engineering education if adequate guidance and support are given to staff and students.  相似文献   

浅谈班主任如何填补留守学生的情感真空     

胡家云 《四川教育学院学报》2011,(12):117-119

随着农村外出务工人员的逐年增加,留守学生逐渐增多,他们远离了父母的关爱照料,造成了留守学生情感上的真空状态。为了让留守学生有一个健康的心理,养成良好的生活与学习习惯,填补留守学生的情感真空,提出五方面的对策以供参考：真心关爱,“高看一眼”;摸底调查,建立档案;加强沟通,倾注真爱;密切联系,协同施教;组织班会,建立帮扶机制。  相似文献   

Vacuum pyrolysis characteristics of waste epoxy printed circuit boards     

ZHAN Zhi-hu  QIU Ke-qiang 《重庆大学学报(英文版)》2011,10(3):113-122

Vacuum pyrolysis was employed to dispose scrap brominated epoxy printed circuit boards (PCBs). Pyrolysis characteristics of waste PCBs under normal pressure and vacuum were investigated in this paper. A detailed study on the analysis of the elemental composition of PCBs and the pyrolysis products was performed. The thermal decomposition kinetics was measured by a thermogravimetric (TG) analyzer. The activation energy of pyrolysis under nitrogen atmosphere and vacuum were 193 kJ/mol to 206 kJ/mol and 145 kJ/mol to 165 kJ/mol, respectively. The composition of materials was analyzed by elemental analyzer. The pyrolysis products were analyzed by GC (gas chromatograph), GC-MS (chromatography and mass spectrometry) and FT-IR (Fourier transform infrared spectroscopy). Vacuum helped to increase the yield of pyrolysis oil. The liquid yield of PCBs pyrolysis at 15 kPa and normal pressure were 31.3? and 23.5?, respectively. The main components in pyrolysis oils were phenol, isopropyl-phenol, and their brominated substitution.  相似文献   

PHOTON-SUBTRACTED (-ADDED) THERMO VACUUM STATE AND THEIR APPLICATION IN JACOBI POLYNOMIALS     

DA Cheng  FAN Hong-yi 《巢湖学院学报》2015,(3):33-39

We construct photon-subtracted (-added) thermo vacuum state by normalizing them. As their application we derive some new generating function formulas of Jacobi polynomials, which may be applied to study other problems in quantum mechanics. This will also stimulate the research of mathematical physics in the future.  相似文献   

转化糖椰肉果脯加工工艺的研究     

方秀玲  黄俊生  李粉玲  李冠中  陈秀丰 《韩山师范学院学报》2010,31(3):74-78

以椰肉为原料制作转化糖椰肉果脯,对影响产品品质的关健工艺如渗糖量、渗糖时间等作进一步探讨.结果表明：果胚在真空杀菌后,0.5%CaCl_2＋1%NaCl溶液下硬化2.5 h,95℃下热烫3 min;采用真空渗糖法,渗糖后进行鼓风干燥,可得到外观、口感、品质都较好的转化糖椰肉果脯.  相似文献   

纠缠原子与场耦合系统中原子的纠缠演化     

邱昌东 《洛阳师范学院学报》2010,29(5):45-48,83

利用共生纠缠度研究了初始处于Bell态的两个全同二能级原子分别与单模真空场相互作用系统中原子的纠缠演化,讨论了原子的纠缠演化特性.研究结果表明:两原子间纠缠呈现出周期性演化规律.  相似文献