氩

Slab continuous casting ; mold ; argon blowing ; single and double recirculation flow pattern ; numerical simulation

板坯连铸；结晶器；吹氩；单双循环流；数值模拟

A mathematical model to describe the interfacial behavior between fluid steel and molten slag layer in a slab continuous casting mold with blowing argon gas was developed, and the prediction was validated by the water model.

利用VOF方法和Lagrange两相流模型描述了吹氩结晶器内钢/渣界面行为，并用水模型实验检验了数值模拟结果。

The formed conditions of a single and double recirculation flow pattern in a slab continuous casting mold with argon blowing were quantitive described using the Lagrange multi-phase flow model,and the prediction was validated by the water model.

使用Lagrange流体模型和水模实验对吹氩板坯连铸结晶器内单双循环流的形成条件进行了定量研究。

In the present study, the condition for the formation of the DRFP in a slab continuous casting mold with blowing argon gas was quantitively described using the Lagrange multi-phase flow model, and the prediction was validated by the water model.

利用Lagrange两相流模型定量研究了吹氩板坯结晶器内双循环流形成条件，并用水模型检验了数值模拟结果。

In order to understand the amount of the argon gas entered the mold and the distribution of argon gas in the mold when blowing argon gas through stopper or upper nozzle, the water model with 1∶1 scale was built to investigate the effects of casting speed, argon flow rate, the manner of blowing argon, nozzle port angle and other parameters on the argon gas distribution in the different wide slab casting mold.

针对塞棒、上水口吹氩时，吹入的氩气有多少进入到结晶器钢水内和氩气在结晶器断面上如何分布的问题，采用1：1水模型，重点研究了吹气量、吹气方式、拉速、浸入式水口倾角等工艺参数对不同宽度结晶器内气体分布状况的影响。

The interfacial behavior between fluid steel and molten slag layer in a slab continuous casting mold with blowing argon gas was described using the VOF method and Lagrange multi-phase flow model,and the prediction was validated by the water model.

利用VOF方法和Lagrange两相流模型描述了吹氩结晶器内钢/渣界面行为，并用水模型实验检验了数值模拟结果。

The formed conditions of a double-recirculation flow pattern in a slab con- tinuous casting mold with blowing argon gas were quantitive described using the Lagrange multi-phase flow model,and the prediction was validated by the water model.

利用Lagrange两相流模型定量研究了吹氩板坯结晶器内双循环流形成条件，并用水模型检验了数值模拟结果。

Other ancillary processing equipment are: welding machine, the protection of carbon dioxide gas welding, spot welding, riveting pressure machine, the general press, tapping machine, and so on.

其它的辅助加工设备有：氩弧焊机、二氧化碳气体保护焊机、点焊机、压铆机、普通冲床、攻丝机等。

At present, the company has various features advanced equipment and the strong technical force, in the enterprise comprehensively promote ISO9000 quality system to standardize enterprise management, professional development and production of welding to bowl, soup pots, American Takanabe, single stalk milk pot, Grate Zhengguo single, double grate Zhengguo, double insulation lunch boxes, deep-dish, fast food was, Koubei series of high profile products, to provide sample processing and production services.

目前，本公司拥有各类功能先进的设备和雄厚的技术力量，在企业全面推进ISO9000质量体系来规范企业管理，专业开发生产氩弧焊接碗、汤盆、美式高锅、单柄奶锅、单篦蒸锅、双篦蒸锅、双层保温餐盒、深菜盘、快餐盘、口杯等系列高中档产品，并提供来样加工制作等服务。

Germany- made plasma cutter and welder (line welding machine and circular welding machine, one set for each); 12 argon welding machines; 4 electric welding machines; 1 spot welder; 3 CO2 welders; 2 oil buffer machines; 2 motor rolling machines; 8 motor wheels; 6 overhead travelling cranes; 3 pressure testers; water- pressured machine for making tank dish cover; welding beads stress reliever; computers for business and graphic design 3 sets for each; stainless steel tube automatic welder and steel tube cutter each for 2 sets.

德制自动电离子切割焊接机组（直线焊接及圆周焊接机各一套）氩焊机12 台、电焊机4 台、点焊机1 台、CO2焊机3 台、油压机床2 台、电动卷圆机2 台、电动滚轮8 台、电动天车6 台、钻床3 台、试压机3 台、卫生桶制造专用水压成型设备壹套、焊道应力消除机1 台、业务用电脑及图面设计用电脑各3 套、不袗管自动焊接机及钢片切管机各2 套。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐