主要介绍了对于双金属复合材料界面结合性能的测试方法及研究现状,并主要针对常用双金属复合材料界面结合性能测试方法所使用的范围和存在的优缺点进行了总结归纳,以期为后续开发双金属材料界面结合性能的测试方法提供理论基础.

针对工业机器人专业人才需求培养过程中应用能力不足、创新性不足、培养模式滞后等问题,采用线上和线下项目式模块化实训教学方法,探索虚拟设计与工程应用混合式教学的新模式;采用分层式任务式教学,实现机器人系统化教学,建立新工科项目化教学系统方法实训一体式的新模式.相对传统教学,学生学习积极性和学习效率大大提高,该方法有助于培养学生的应用能力和创新能力,可更好满足企业工业对工业机器人专业人才的需求.

针对汽车内饰件高性能和高可靠性的需求,结合Moldflow软件,分别对塑件一次成型和二次成型进行相应的有限元模拟,包括浇口位置、尺寸的选择、填充时间、填充压力、熔体流动前沿温度、剪切速度、熔接线和缩痕估计.根据塑件结构和膜内注塑的特点,合理地设计了模具分型面、顶出系统和冷却系统,并详细阐述了模具的工作原理.通过以上分析,得到模具的一次和二次成型的进胶口、尺寸及注塑参数均符合要求,可以按照仿真参数进行模具设计和加工,为双色膜内装饰塑件提供参考.

推进技能型社会建设是国家最新重大战略决策,对地方职业院校产教融合高质量发展提出了新要求和新使命.地方职业院校产教融合高质量发展面临的主要问题与原因包括:企业对产教融合的重视力度不够,产教融合动力不足;地方职业院校发展存在路径依赖,技能型人才培养落后于时代需求;政府对职业教育的引导有待加强,尚未形成现代职业教育体系.提升地方职业院校服务技能型社会的能力,需要厚植共同体理念,建立产教融合长效运行机制;整合共同体资源,共建创新融合平台;打造共同体团队,培育供需匹配人才;均衡共同体利益,完善利益分配制度.

新一轮职业教育专业目录及标准内容的调整,使高职院校工科专业面临数字化和智能化方面的挑战.同时,提质培优行动计划也对高职院校工科人才提出了新要求.面对新时代工科类专业的数字化与智能化发展趋势,遵循提质培优的四项基本原则,高职院校工科人才培养应坚持"区域产业需求"导向、"教学标准引领"导向、"实践育人攻坚"导向和"创新特色发展"导向,并基于此深化人才培养模式改革,探索培养新时代工科人才的特色之路.

宁波职业技术学院探索出三种现代学徒制人才培养模式,即对接产业链开展校企一体现代学徒制人才培养,形成基于大型企业培养、基于产业园区模具企业集群、基于数字科技园"院园融合"中小企业集聚的具有本地特色的三种现代学徒制范式,对推动现代学徒制高质量发展提供了新思路、新途径.宁波职业技术学院的探索与实践,对全面推行现代学徒制的启示:完善政策法规建设,夯实顶层设计;构建多元投入机制,激发利益主体活力;对接"1+X"证书制度,优化人才培养方案;吸收国际先进标准,促进教育高质发展.

中国特色学徒制的"特色"集中体现在资源整合方式、学徒制度设计、人才培养模式等三个方面,并为县域经济发展提供了人才支撑,增强县域经济发展的能动性.宁波职业技术学院阳明学院"三元双轨"学徒制在立足余姚市县域经济发展、盘活政校企多方优质资源;构建科学标准体系和治理架构、优化学徒制培养顶层设计;关注学徒制培养关键环节、创新学徒制培养模式三个方面进行了诸多有益探索与实践,为打造中国特色学徒制提供了良好的参考范本和经验借鉴.

疫情对高职院校新学期的教育教学工作提出了新挑战.宁波职业技术学院统筹布局,优化顶层设计;精准培训,“赋能”教师;内生外引,夯实信息化教学环境基石;强化指导,引导学生自主学习.通过精心设计战“疫”路径,在线教学初见成效.后疫情时期,学校将持续推进在线课程建设的力度,推进线上线下混合式教学,推进智慧学习环境的构建,进而推动以互联网为核心的新一代信息技术与教育教学深度融合.

在模具设计与制造专业现代学徒制试点工作过程中,宁波职业技术学院借鉴吸收世界先进的职业教育教学模式进行本土化实践与改造,以高职院校与县级市"县校共建"二级特色产业学院为平台,政校企共建现代学徒制跨企业训练中心(以下简称"中心"),一方面实现了中心、学校、企业三个教学场所的"三元"衔接,另一方面实现了学徒班在校学习与企业跟岗"双轨"教学的不间断运行,形成了具有中国特色的"三元双轨"现代学徒制人才培养模式.

In this paper, the relaxation phenomenon of the birefringence effect of water-based magnetic fluid thin films in the oscillatory pulsed magnetic field are studied. The research is conducted focusing on the changing situation of the optical intensity of the linear polarized light via passing the water-based magnetic fluid and a light analyzer in the oscillatory pulsed magnetic field. The experiment results show that the magnetization of water-based magnetic fluid depends mainly on the Nèel relaxation, but the magneto-optical birefringence effect is influenced by the spatial arrangement velocity of magnetic particles to overcome the thermal movement and the viscous force of water.

目的 探讨梯度磁场下硅油基纳米磁流体作为玻璃体腔填充物的可行性.方法 分别将不同质量百分比浓度的硅油基纳米磁流体放在可见光分光光度计中测量透射光谱线,观察硅油基纳米磁流体在梯度磁场诱导下吸光度的变化.结果 低质量百分比浓度(如0.5％)的硅油基纳米磁流体的透过率比较好,高达95％;但随着质量百分比浓度的增大,透过率快速下降,质量百分比浓度为2.5％时透过率仅有40％左右.但在外加梯度磁场作用下,4h后纳米磁粉会聚集到梯度磁场较大的部位,其他地方的质量百分比浓度下降,光透过率达到95％以上.结论 硅油基纳米磁流体在梯度磁场作用下,纳米磁粉会发生定向移动,可以聚集到磁场对应处,其他部位的硅油基纳米磁流体光透过率将恢复正常,接近纯硅油的可见光透过率.

A type of three inclined-hole angular cam core-pulling mechanism was provided. When the oblique screw cylindri-cal hole with the direction being not matched to the mould open direction exists in the side of moving half of a injection mould,the inclined-hole angular cam core-pulling mechanism can realize the core-pulling action and automatic molding production of the prod-ucts with the feature mentioned above. The first core-pulling action is achieved through the action of angular cam of the mechanism, the second core-pulling action is realized through the forms of spring driven the main slide block,and the third core-pulling action is realized through the forms of spring driven inclined ejector pin. In this way,the locking block is omitted and simplified in mould structure and the product molding quality is ensured effectively with simplifying the mould structure,the mould production cost and product injection molding cost are reduced.

The structure and working principle of the oscillating blade-type wave energy power generation device were briefly introduced,and the wave mechanics and the shallow water wave theory were used to theoretically analyze the oscillating blade,then the capture efficiency formula was derived.In order to investigate the performance of the device,the effects of the swing angle and wave height parameters on the hydrodynamic performance of the device was analyzed by using the Fluent simulation software,and the concept of optimal swing angle was proposed,meanwhile,the relationship between the optimum swing angle and wave height was studied.The experimental results showed that,the capture efficiency of the device first increased and then decreased with the increase of the swing angle,and increased with the increase of the wave height.The research provided a theoretical basis for the later device experiments.

In this paper, the material parameters, element type selection, geometric modeling steps are determined using ANSYS finite element simulation software, and the thermal residual stress formation of spot welding, stretch bending and springback processes of doorframe profile are analyzed for improving the production accuracy. In the end, the results from using springback with and without failure welding are obtained and analyzed. It is found that:failure solder joint at place of great stress has a stronger influence on the stability of the springback in the process of stretch bending, and otherwise less influence is exerted. In addition, other corresponding solutions are proposed, which play a significance role for improving the quality of automobile frame production.

According to the structural characteristics of the left headlight holder of car,a twice parting hot runner injection mold with two plates was designed. By using the CAE analysis and the design experience of the die and mold,the 4 gate submarine pouring method was adopted. For difficult processing problems,the insert inlaid way is used to reduce the difficulty of processing. Aiming at the difficult problem of demoulding,the different types of side core pulling mechanism are designed,especially the cen-tral hole stripping,the innovative design of demoulding mechanism with oblique pulling core driven by three times steering is used, the design difficulty of inclined hole core pulling mechanism is reduced,the mold structure design size is reduced,the cost of mold design and manufacture is effectively saved. The mechanism is simple and reliable,it provides a useful reference for the design of ejection mechanism with similar oblique features.

从全面提高实训教学效果和教学质量的角度,提出了高职模具专业在模具设计与制造综合实训课程中实现教学过程与生产过程对接的教学方法,是目前理实一体化项目教学在专业教学中的深化和发展.通过对“跨学期、递进式”模具设计与制造综合实训模式的有效性分析,提出了面向企业职业岗位和工作过程的跨课程、跨学期、多项目、学生轮岗综合实训是提高实训教学效果的重要途径.

Building higher vocational specialty college together by cooperation between country and school can solve the demand for the high-quality skilled talents because of county's economic and social development, improve the ability of vocational college to service the society, is an import way for the connection of secondary and higher vocational to and construct the modern vocational education system, and is the optimal choice for development in higher vocational colleges in China. Practice shows that it is an effective approach to run the characteristic school about the innovation school-running system and mechanism ,a higher depth fusion by the link of the connection of secondary and higher vocational, the co-construction and sharing of teaching resources, the need of dynamic development so on.

In this report, the experimental thermal diffusivity data are presented for different concentrations of ferrofluids. The thermal diffusivity measurements are conducted using a laser-induced thermal grating technique at room temperature and atmospheric pressure. The ferrofluids studied have volume fractions ranging from 5% to 10%. Because of the small temperature rise in the thin sample during the measurements and the very short measuring time of a few milliseconds, the influence of free convection can be ignored. The results show very good agreement with the experimental data in the openly published literatures, and thereby indicate the feasibility of the technique proposed in this report.

Objective This paper describes a new type of silicone-oil-based Fe3O4 magnetic liquid and discusses the feasibility of vitreous implants from the mechanics viewpoint.Methods This was an experimental study.The silicone-oil-based Fe3O4 magnetic liquid had been studied previously in the pig eye cavity.The experimental results demonstrated that the silicone-oil-based Fe3O4 magnetic liquid moves on the cavity surface and aggregates at some position under the action of the magnetic field force.The silicone-oil-based Fe3O4 magnetic liquid was filled into a simulated eyeball that was suspended in a gradient magnetic field.The force applied on the simulated eyeball was measured.Results The silicone-oil-based Fe3O4 magnetic liquid moved on the simulated eye cavity surface and aggregated along the magnetic field line with an applied pressure of about 17 mmHg.Conclusion The silicone-oil-based Fe3O4 magnetic liquid approximates the vitreous implant requirements,and has unique mobile and location advantages.This provides a preliminary study approach and an estimate of usefulness for magnetic liquid used in retinal repair.

The paper aims at investigating the potential application of silicone oil based Fe3O4 magnetic fluid as a vitreous tamponade agent. The silicone oil based Fe3O4 magnetic fluid is prepared and deposited in a pig eye. An external magnetic field is applied to the eye to test the behavior of the fluid in vitro as well as the tamponade effect of the magnetic fluid. In the vitro study, it shows that under the influence of an external magnet, the magnetic Fe3O4 micelles are separated from silicone oil toward the maximum magnetic field strength (toward the magnet) and coated on the inner scleral wall evenly in that area. The experiment result provides the preliminary data supporting silicone oil based Fe3O4 magnetic nanoparticles as a novel vitreous tamponade agent, especially in the case of inferior retinal detachments.