tube rolling

A mathematic model of the optimization to take aim at the optimum dynamic balance has been built. The three-roller cold tube-rolling mill on the LDD-12 four-strands has been calculated using the direct-scouting Complex Method.

建立了以最佳动平衡为目标的优化教学模型，并用复合形法对LDD-12四线三辊冷轧管机进行了实算。

PROPORTIONAL CHARGE-OVER VALVE AND ITS APPLICATION TO φ140 SEAMLESS STEEL TUBE ROLLING MILL ( concluded )

换向-比例阀及其在φ140无缝钢管厂的应用 ( 续完 )

For rising control level, RMC is used in rolling tube equipment.

为了提高控制水平, 在轧管设备中采用了RMC轧机控制器.

Testing technological experiment on Preparation of mother tube for finish-rolling

精轧管管坯准备的工艺试验

Forming Mechanism of Bamboo Knot by Tandem Tube Rolling Mill with Full Floating Mandrel

全浮动芯棒连轧管机的竹节形成机理

Using self-boring grouted rock external screw bolt to build geotechnical anchor, is the key technique by which resolve the difficulty of the construction in complex geologic circumstances. And external screw steel tube rolling is the key equipment to manufacture finish rolling external screw steel tube.

使用自钻注浆式外螺纹锚杆进行岩土锚固施工，是解决复杂地质条件施工难题的关键技术，而外螺纹钢管轧机则是生产精轧外螺纹钢管的关键设备。

As a new generation of bar, wire and tube processing equipment, three-roll planetary mill has outstanding advantages such as one-time large deformation, no rotation rolling, energy-saving and environmental protection, so has become a concern for the development of rolling industry.

三辊行星轧机作为新一代的棒材、线材和管材加工设备，具有单道次变形量大、轧件无旋转轧制、节能环保等突出优点，已成为发展轧制行业的一个关注点。

The forming limit of forward extrusion and cross rolling tube billet

管坯正挤&横轧的成形极限

In the laboratory test with single rolling stand simulate the continuous tube rolling process with front tension and thrust rolling diagram to determine various parameters of tension and thrust force, rolling pressure and deformation.

在实验机组上用单机轧制模拟连轧管机带张推力的轧制图示，对张推力、轧制力、变形参数进行了测定。

It can be classified as U-tube tank stabilizer and flume anti-rolling tank according to structural configuration, and the former has three types, namely passive, active control and controlled passive tank in terms of the control mode.

减摇水舱按结构形式可分为U型减摇水舱和槽型减摇水舱，而U型减摇水舱可以设计成被动式、主动控制式和可控被动式三种。

The roller stand, as the central part of tension reducing mill of seamless steel tube finish rolling line imported from Germany is the key consumable part of mills.

从德国引进的无缝钢管精轧生产线，其张力减径部分中心部件轧辊支架是机组中的主要消耗零件。

Comment on Roller-shape Design Mathematic Model of Taper Roller Rolling Tube Mill of ITAM Corporation

评ITAM公司的锥形辊轧管机辊型设计数学模型

Application of Dummy Simulation Based on Matlab in Hydraulic Capsule Control System of Continuous Tube Rolling Mills

基于Matlab的虚拟仿真技术在连轧管机组液压压下系统设计中的应用

Through the numerical simulation in the spiral tube rolling bending forming process, the stability of plastic deformation region was resolved, and the variational rules of thickness on cross section, forming velocity and deforming force is researched.

通过螺旋盘管滚弯成形过程的数值模拟，解决了其成形过程中的稳定性问题，分析了螺旋盘管成形时断面壁厚、成形速度以及成形力的变化规律。

Reform design of the roll spindles of the punching machine in Φ 400 tube rolling train

Φ400机组穿孔机用滚动接轴的改造设计