A Numerical Comparison Study of the Methods of Rockfill Dam with Concrete Facing

Stress and Deformation Analysis and Programming Study on Concrete Facing Rockfill Dam

面板堆石坝应力变形特性分析与程序设计研究

Research on Safety Monitoring Relating Management System of Concrete Facing Rockfill Dam

面板堆石坝安全监测关联管理系统研究

A experimental study on fatigue damage of asphalt concrete facing at low temperature

沥青混凝土面板低温疲劳破坏的实验研究

Mechanized Feed Steel Pipe Automatic Facing and Chamfering Machine and Pneumatic

机械进给钢管自动平头倒棱机及气动自定心平头倒棱夹具

Study on Integrated Design Facing the Loading Machine in Enterprises

面向装载机企业数字一体化设计技术的研究

A new type of pipe clamp for facing machine is introduced. It is analyses that the characteristic and property, working principle, property index, location precision and so on for the pipe clamp.

介绍了一种新型钢管管端平头机的夹管机构，对夹管结构的特点和性能、工作原理、性能指标、定位精度等作了描述和分析。

Application of feeding-cam profile for pipe-end facing machine

平头机进给凸轮曲线的应用

A New Type of Pipe Clamp for Facing Machine

一种新型的平头机夹管机构

System Design and Characteristic Analysis of Movable Flange Facing Machine Tools

移动式法兰端面加工机床的总体设计与特性分析

Application of PLC and DC Speed Adjustment in Double-housing Facing Machine

PLC及直流调速系统在龙门刨床中的应用

The high chromium cast iron flux cored wire is an important kind of hard facing material with good cost performance and excellent anti-abrasive wear performance, which is widely used in metallurgy, mining, cement, construction machinery, dredging equipment and many other fields.

高铬铸铁药芯焊丝是一种重要的耐磨堆焊材料，广泛应用于冶金、矿山、水泥、工程机械、航道疏浚设备等领域，是抗磨料磨损性价比优异的堆焊材料。

Non-lubricated, tapered plug assures tight seal with low breakout torque. Constructed of hardened materials with optional hard facing.

无润滑，锥形阀塞确保紧密密封，并且具有很低的启动扭矩。有硬化材料构造而成，配置备选硬面。

The main performance indexes on 1# hard facing rust inhibiting oil were verified and its process was determined.

对1号硬膜防锈油的主要性能指标进行验证并确定其使用工艺。

Dual-Metal Hard Facing Heap Weld Technology of Recovering Hot Forging die

修复热锻模的双金属堆焊技术

The results show that hard facing layer have high hardness, anti wear performance and suitability.

结果表明，圆点状堆焊层具有较高的硬度、耐磨性及适用性。

Especially to the stripping of SLA prototype, use the similar principle similar to solubility parameter of principle of polarity, have confirmed that corrode and destroy the organic solvent of SLA prototype, thus the difficult problem stripped after solving the chemical copper facing of SLA prototype effectively.

特别是针对SLA原型的剥离，运用极性相似原则和溶解度参数相近原则，确定了有效腐蚀和破坏SLA原型的有机溶剂，从而解决了SLA原型化学镀铜后剥离的难题。

Treatment of copper facing water of petroleum drilling rod

石油钻杆刷镀铜废水处理

Finally, some comments on the safety of the facing gravel sand dam were presented.

文末就面板砂砾坝的有关安全技术提出了意见，这对未来的坝工将是有益的。

Northern China is facing another sand storm.

又一场沙尘暴来袭华北等地。

The effective coal dust content of molding sand should be determined according to the factors such as the quality of the coal dust, casting size and thickness, pouring temperature, facing sand or unit sand, and so on.

决定型砂中的有效煤粉含量应根据煤粉质量的优劣、铸件大小和厚薄、浇注温度、面砂或单一砂等因素。