弧齿式与锯齿式接链环的比较

分析了锯齿式接链环结构的不合理性和其换代产品弧齿式接链环结构的合理性,并对两者的技术性能、使用寿命等进行了比较分析,认为弧齿式接链环具有较高的破断强度和疲劳强度,是目前井下使用的接链环更新换代的最佳产品。     

克林根贝格螺旋锥齿轮齿面修正的数学模型

通过对螺旋锥齿轮副啮合性能及特点分析和讨论,指出了克林根贝格(Klingelnberg)齿制的齿形特征和切齿原理的特殊性。在运用齿轮啮合原理的基础上,建立克林根贝格(Klingelnberg)齿制局部共轭齿面修正的数学模型。     

Applications of Plasma-Activated Water in Dentistry: A Review

The activation of water by non-thermal plasma creates a liquid with active constituents referred to as plasma-activated water (PAW). Due to its active constituents, PAW may play an important role in different fields, such as agriculture, the food industry and healthcare. Plasma liquid technology has received attention in recent years due to its versatility and good potential, mainly focused on different health care purposes. This interest has extended to dentistry, since the use of a plasma–liquid technology could bring clinical advantages, compared to direct application of non-thermal atmospheric pressure plasmas (NTAPPs). The aim of this paper is to discuss the applicability of PAW in different areas of dentistry, according to the published literature about NTAPPs and plasma–liquid technology. The direct and indirect application of NTAPPs are presented in the introduction. Posteriorly, the main reactors for generating PAW and its active constituents with a role in biomedical applications are specified, followed by a section that discusses, in detail, the use of PAW as a tool for different oral diseases.     

如何包覆非织造布梳理机的金属针布

根据非织造布梳理机的工作原理 ,论述了金属针布的使用性能及其特点 ,介绍了用车床包金属针布的工艺技术和实践方法。     

一种新型旋转轴密封──齿形滑环式组合密封

介绍了齿形滑环式组合密封的结构、工作原理及应用情况,与其它旋转轴密封相比,该密封具有 高寿命、低摩擦、无泄漏及结构简单,适应性强等特点。     

基于齿面寿命的齿轮参数优化设计

阐述了以齿轮齿面寿命为目标的齿轮传动几何参数优化设计方法 ,该优化设计考虑了负荷大小、接触点几何形状、滑动速度、油膜厚度等因素的影响。以齿轮减速器为例说明了数学模型的建立方法 ,并通过实例进行了印证 ,结果表明该优化设计方法能为提高齿面寿命提供有价值的齿轮参数组合     

少齿数齿轮的磨齿

阐述了在现有设备的条件下,利用点动操作来有效地解决少齿数齿轮的磨齿问题,并从理论上进行了分析,既保证了齿轮的加工精度又达到了较好的经济效果。     

唐钢1680 mm生产线精轧减速机制造过程中的质量控制

唐钢1680mm超薄热带生产线精轧减速机由三菱公司设计、国内合作制造。这种大型、高精度、硬齿面的板带生产线精轧减速机为国内首次制造。在制造过程中，通过采取严格贯彻制造标准、提高加工工艺水平、重视材料选择及热处理工艺控制、强化管理等有效的质量控制手段，确保了对其加工精度的要求。     

MESHING THEORY AND DESIGN METHOD OF NEW SILENT CHAIN AND SPROCKET

Based on the study of the meshing theory of a new silent chain and sprockets, and the rolling cutting theory of sprocket and hob, the harmonious relations of dominating dimensions among the new silent chain, sprocket and hob is build, the meshing conditions are expatiated, and the resolved expression, which can instruct design and calculation, is educed. The tests show that the meshing design method is feasible.