1、

An optimum combination of forming parameters of expanding-ratio, diameter of sectorial die and corner radius of die rim is concluded from a functional relation between roundness error of cross-section and forming parameters for the process of mechanical expanding of large diameter line pipe in the paper.

针对大直径管线钢管机械扩径工艺,得到了以最终制品形状精度(横断面圆度误差)为优化目标的扩径率、模具直径和模具边缘圆角半径等成形参数的最优组合。

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2、

Study on the approximate deployment theory of the reducible elbow pipe in the sheet metal process

钣金工艺中渐缩管弯头的近似展开理论研究

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3、

Probe into the Process of Steel Plate for Thermo-welded Bent Pipe

热焊弯管用钢板工艺探讨

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4、

This paper set up mathematics model for this compound heat pipe and analyzes its heat transfer process to provide theoretic thereunder.

本文为这种复合型热管结构建立了数学模型,并对它的传热过程加以分析,为其改进建立理论依据。

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5、

On the basis of the works above, a complete control system of SAW process for spiral pipe is realized.

在上述工作的基础上,实现了对螺旋管埋弧焊连续生产过程的微机控制。

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6、

Combined with urban water supply works of Taiyuan the construction experiences of large casting ductile iron pipe are summarized from construction process, finished products protection, installation in knick point and other aspects. Which provides references for the construction of underground pipeline.

结合黄河水源太原市城市给水工程施工实例,从其施工工序、成品保护、变坡点的安装等方面,总结了大型球墨铸铁管施工中的经验,为给水工程地下管线的施工提供了参考。

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7、

Discussion on Process Layout of Chamfering Machine for SAW Steel Pipe

埋弧焊钢管倒棱机工艺布局方式的探讨

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8、

Production of automobile drive shaft pipe with ERW pipe cold-drawing process

用冷拔电焊钢管工艺生产汽车传动轴管

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9、

Analysis of forming process and design of die for exhaust pipe shield

排气管罩拉伸模设计及成形工艺分析

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10、

Welding Process Control Method of Pipe All Position Automatic Welder

管道全位置自动焊机焊接工艺参数的控制方法

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11、
12、

NC-Aimed Process of Accu-Roll Pipe Mill Guide Dise

Accu Roll轧管机组导盘的数控加工

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13、

The method of NC-aimed process of Accu-Roll pipe guide dise, and how to improve quality and efficient in manufacturing.

本文着重讨论了Accu Roll轧管机组导盘的数控加工方法,以及如何提高加工质量和加工效率。

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14、

Compositions and production process of transparent PVC flexible pipe

PVC透明软管的配方及生产工艺

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15、

With this result of analyzing the bender, the process of bending and quality of banded pipe were analyzed with technology.

根据分析结果,对手动或机械弯管设备、弯菅工艺参数以及弯管质量进行工艺分析。

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16、

abided by low energy-consumption, low maintaining expense and the integrated wastewater discharge standard, cass process is selected here'to perform a modification with new-innovated aerator in place of fan and matched pipe.

结合工程实践,遵循低能耗、低维护费用和达标排放的原则,选择了CASS技术进行设备改进,以新研制的导流曝气机替代传统鼓风曝气机。

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17、

Discussion on Hot Shortness in Drilling Pipe End Thickening Process

钻杆管端加厚工艺中热脆性问题的分析

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18、

The economic evaluation showed that the ethylene cost can be reduced by 25% than that of gas oil pipe still pyrolysis process.

经济评价结果表明,该工艺与石脑油管式炉裂解工艺相比,可使乙烯成本降低约25%。

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19、

Continuous forming and extruding process equipment for high intension plastic corrugation pipe

高强度塑料波纹管连续成型产出工艺及装备

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20、

The advantage of heat tension size reducing process adopted on electric welding pipe developed by Technology Institute of Kawasaki Steel Corp. Japan, and the basic character of the high strength and high ductility pipe are introduced.

介绍了日本川崎制铁公司技术研究所开发出的电焊钢管采用热张力减径工艺的特性,及这种钢管的高强度、高延性等基本特性。

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