芯棒

Founded 8 years mainly fluid plug mosquito coils of research, production and development.

公司成立8年来主要从事液体蚊香芯棒的研究、生产、开发。

It is also studied how the axial relative position in the process of drawing affects the finished quality of rifled tubes.

本文还研究了在拉拔过程中芯棒和凹模的轴向相对位置对内螺纹管成形质量的影响规律。

The plug side angle greatly affects the rib distortion, which is also discussed in this paper.

芯棒沟槽侧壁角度对凸筋畸变程度也有较大影响，本文也进行了研究。

The core bar making this products is pure ferro contained Titanium byTaiyuan by steel-iron group.

本产品芯棒采用太原钢铁集团有限公司提供的含钛纯铁。

The plastic deformation mechanism of the process is explained. The vector equations of the curved conical surface and the figure of the particle motion for the forming process of the bending tube are presented. The theoretical model of stress and strain fields of the forming process is deduced. The practical forming process of tubes of large diameter demonstrates the validity of the new type of design method of the ox-horned core bar and the computation formula of the length of the raw tube.

本文通过研究弯管成形瞬时应力、应变状态及演化过程，阐明了弯管成形过程受力变形特点及力学原理；提出了一种适合弯管变形分析的新单元及数值方法；建立了弯管成形过程应力、应变场&标准图象&；通过研究弯管成形过程金属流动规律及力学条件，阐明了本工艺塑性变形机理；建立了描述弯管成形过程的曲锥面向量方程及其质点运动学图象；推导了弯管成形过程应力、应变场理论模型；结合大口径弯管生产过程，验证了本文给出的新型牛角芯棒设计方法和管坯长度计算公式的正确性。

The utility model discloses an axis deviant tester for hoop, used for testing hoop axis deviant for production devices in oil field.The structure of the utility model is formed with a conical-surface centering and a thread tightening mandrel, and only one fitting surface is arranged between the mandrel and the dial gauge.

这个实用模型揭示了一个轴偏差测试仪箍，用作测试箍轴偏差，为生产装置，在油场结构的公用运算模式的形成是一个圆锥面围绕一个收紧轴，而且只有一个拟合面安排之间的芯棒和百分表。

Addressing the pipe-rolling process consisting of rotary piercing mill, full-floating mandrel mill and stretch reducing mill, it is pointed out that both the Crop End Control technique of the stretch reducing mill and the Front-Tail Sharpening process should be jointly employed.

针对由斜轧穿孔机、全浮动芯棒连轧管机、张力减径机组成的轧管工艺，指出应将张力减径切头控制技术与管端轧薄工艺结合。并指明当今对轧管工艺的研发应从工艺技术本身和自动控制软件包两个方面着手。

The company covers an area of 80,000 square meters, the plant area of 45,000 square meters, with ordinary lathes, CNC lathes, forging bed, and large-caliber end machine tools, trucks legislation, such as drilling equipment more than 200 sets of hydraulic own 2000 T molding machine, 1500 T, 1200T lying - Press and the most advanced of 4 Mandrel Press more than 10 sets, the production of finished products flange 15,000 tons, finished steel pipe 5,000 tons.

目前公司占地面积80000平方米，厂房面积45000平方米，拥有普通车床、数控车床、锻床、大口径端面车床、立车、钻床等设备200多台；拥有2000T成型液压机、1500T、1200T卧式压机和国内最先进的四柱芯棒压机十多台套，年生产成品法兰15000吨、成品钢制管件5000吨。

Once the bottom layer is tamped in, press a PVC mandrel through the wet concrete in the center to form the drainage hole.

是夯实中，通过在新闻中心湿混凝土聚氯乙烯芯棒形成排水孔。

Mandrels are driven by individual servo-motors, and allow a very simple and quick change-over.

每个芯棒都由独立的伺服马达驱动，没有齿轮应用，因而非常简单并且更换非常简单快速。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。