多弧

The factory has more than 6,000 square meters of standard factory buildings, 500 square meters of office space, more than 90 employees, including 15 middle and high-ranking engineers, factory with advanced equipment and related NC shear, punching, bending, school-ping, welding , Dioxane, sub-arc and other equipment.

本厂拥有6000余平米的标准厂房，500平米的办公区，拥有员工90多名，其中高中级工程师15名，同时本厂拥有先进数控设备及配套剪，冲压，折弯，校平，电焊，二氧，亚弧等设备。

Our factory has more than 6,000 square meters of standard factory buildings, 500 square meters of office area, with more than 50 employees, including 10 high and mid-level engineers, and factory with advanced numerical control equipment and auxiliary cutting, stamping, bending, leveling, welding , dioxane, sub-arc equipment.

本厂拥有6000余平米的标准厂房，500平米的办公区，拥有员工50多名，其中高中级工程师10名，同时本厂拥有先进数控设备及配套剪，冲压，折弯，校平，电焊，二氧，亚弧等设备。

Learning from double metal complex structure and multilayer over high-pressure container,double layer SAW with large diameter was designed,this will enhance pipe holding pressure capacity,so it can improve pipe transmission capacity.

受双金属复合管结构和多层超高压容器的启示，设计了一种大直径双层埋弧焊管，拟从结构上提高钢管的承压能力，从而提高管道的输送能力。

Spiral steel pipe company's existing production lines, two of hot-rolled seamless steel pipe production line and four thermal expansion seamless tube production lines, the production φ219-1820 double-helical SAW pipe joints 200,000 tons,φ57-377 seamless hot-rolled 200,000 tons of steel pipes,φ377-630 thermal expansion Seamless Steel Tube 60,000 tons, product implementation SY/T5037, GB/T9711, GB/T8163, API 5L, API 5CT standards, widely applicable to oil and natural gas industry, chemical industry, general Fluid transport and infrastructure projects such as a bridge piling, sells to 27 provinces, municipalities and autonomous regions, and over 700 sales outlets, the reliable quality and high quality services to our customers has won the recognition and welcome.

公司现有六条螺旋钢管生产线、两条热轧无缝化钢管生产线和四条热扩无缝管生产线，年生产φ219-1820螺旋缝双面埋弧焊钢管20万吨、φ57-377热轧无缝化钢管20万吨、φ377-630热扩无缝钢管6万吨，产品执行SY/T5037、GB/T9711、GB/T8163、API 5L、API 5CT标准，广泛适用于石油天然气工业、化学工业、普通流体输送及桥梁打桩基建工程等，销往全国27个省、市、自治区，700多个销售网点，可靠的质量和优质的服务赢得了广大客户的认可和欢迎。

Some measurements and analyses of the electric parameters of arc welding power supply have been done using this system.

论文研制开发的多功能弧焊电源检测系统以虚拟仪器为技术平台，系统整合了包括电子技术、计算机技术、传感和检测技术、数字技术和虚拟仪器技术等在内的现代信息技术。

Vacuum interrupter is the core of high voltage vacuum switch. Because of the long contact gap, the axial magnetic field contact is widely used to generate stronger and evener AMF in the contacts' gap. It can reduce arc current density and arc energy, so its interrupting performance is improved.

高压真空开关的核心部件之一是真空灭弧室，由于其触头开距较大，因此多采用纵向磁场触头，希望触头间隙有较强且较均匀的纵向磁场，这样可降低电弧电流密度，降低电弧能量，从而提高开断性能。

The shell of the liquid crystal auto-changing shade welding is made of high-performance plastic which is high strength and without leaking light. In addition to, by adding fire retardant and other special components , it has meet to the demand of inflaming retarding and could bear the high and low temperature .For resistance to impact, besides of choosing lightweight and high strength material, we also consider more in the aspect of the mechanics and human engineering in the design of the structure .In order to insure the comfort for wearing , we make the inside and outside protection piece and the shell of the face guard to a camber shape ,it also enhances the ability of resistance to impact.

液晶自动变光焊接面罩的壳体采用高性能的塑料注塑制作而成，高强度，不漏光，并通过在面罩材料里添加一定配方的阻燃剂和其他特殊成分，达到了阻燃和耐高低温等要求；为了抗冲击，除了材料选择轻质高强度材料外，在结构设计上更多的从力学和人体工程学方面考虑，保证了佩戴的舒适，而将内外保片与面罩壳体结合设计成能够最大承受外界力量的弧型，增加了面罩抗冲击能力。

In 2002, L.Volkmann [6] raised a problem: Determine other sufficient conditions for emicomplete multipartite digraphs such that every arc is contained in a Hamiltonian path.

Volkmann [6]提出这样一个问题：给出半完全多部有向图中每一条弧都在Hamilton-路上的充分条件。

The implanter equipped with intense current, pulsed cathodic arc metal plasma sources which have both strong coating function and gas and metal ion implantation function. Its pulse high voltage power supply can provide big output current. It can acquire very good implantation dose uniformity.

第三代多功能等离子体浸没离子注入装置的强流脉冲阴极弧金属等离子体源既具有强的镀膜功能，同时也具有强的金属离子注入功能；它的脉冲高压电源能输出大的电流；并可获得高的注入剂量均匀性。

Yuguang brand vacuum interrupter is exported to the United States, Russia, Germany, Japan, India, South Korea etc more than 20 countries and regions.

宇光牌真空灭弧室的生产及销售位列全国前三强，并远销美国、俄罗斯、德国、日本、印度、韩国等二十多个国家和地区。

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