查询词典 vortex sheet

Laser bending is a forming technology which makes use of a thermal stress and thermal strain to achieve sheet metal bending in recent year, and it needs no die and external force. The laser beam energy has good controllability. Laser technology is used in forming of magnesium alloy sheet, this can full play the unique advantages of the technology.

激光弯曲成形是一种利用热应力来实现板材成形的技术，激光弯曲成形不需模具和外力，且激光束能量集中具有良好的可控性，将激光成形技术用于镁合金板材成形，可以充分发挥该技术的独特优势。

On the experimental device of metallic membrane bulging, the measuring of in-plane true strain, transverse plastic strain at the pole of sheet, and the contour shape of sheet can be done. So that the relationship between true stress and true strain in the all deformation range of metallic sheets can thus be built up. Furthermore, the changing pattern of elasto-plastic and plastic Poisson's ratio can also be obtained.

在平膜鼓胀装置上，通过测量膜片极顶的面内真应变和横向塑性应变以及膜片的轮廓形状，并计人泊松比随变形过程发生的变化，可建立二向应力状态下箔材从弹性经塑性至破裂的整个变形范围内真应力和真应变的关系，同时还可以得到弹塑性泊松比和塑性泊松比的变化规律。

This term sheet is a fully developed term sheet for a Series A investment and sets the terms of the preferred stock into which the note will be converted.

这个投资协议条款清单对 A 轮投资来说已经规定的很充分了，同时也规定了优先股（他们的债权将转换为优先股）的条款。

As their name suggests, in one case a clear plastic film is laid down over the sheet of paper, and in the other case a clear liquid is spread over the sheet and dries like a varnish.

作为一种建议，在一个案例明确规定了地膜纸、而在另一案是分散于液态明确表和风干像个清漆。

The result showed that compared to old system, the new system improved printing precision in sheet positioning section of printing process. And it broke through the limitation of printing speed by sheet positioning section.

分析研究结果表明：新型机电结合的定位模式较之原来传统机械式的定位方法，可以更加准确、快速地完成定位，使印刷套准在纸张定位环节的精度得到很大提高，并可以突破传统定位系统的机械结构对印刷机运转速度的限制。

The Company in the production process of gradually introducing a full set of first-class large-scale domestic and foreign advanced equipment, including high-speed precision flying straight up shear machine, High Speed Precision Sheet Slitter, sanding machines and a number of other essential equipment, is a cold-rolled stainless steel sheet supply, precision shear processing, precision surface processing (including oil matte board, drawing board mill oil, etc.), distribution, warehousing as one of the modern logistics enterprises.

本公司在生产的过程中逐步引进国内外先进全套一流大型的设备，包括高速精密飞追剪平直机、高速精密薄板分条机、磨砂机等一批主要设备，是集不锈钢冷轧薄板供应、精密剪切加工、精密表面状态加工（包括油磨砂板、油磨拉丝板等）、配送、仓储为一体的现代化物流企业。

Max. Printing Speed 350 Sheet/h 300 Sheet/h

最大印刷速度

The characteristic of this series leveler iS that it has adopted two national patent technologies:group driving plate levelling machine ZL200420001176.0 and axial decelerating motor leveler ZL200520007514.6.Each top roll is driven by a set of decelerating motor.and every two lower rolls are driven by a set of dynamic system,so that the line speed of each roll iS consistent with sheet metal speed of the contacting part,and it has solved the problems existing in traditional transmission system,such as friction between sheet metal and roll surface.and mechanical interference problem in the system And the working roll adopts spherical roller bearings which have little friction resistance.so this series leveler has such advantages as high levelIing quality,Iittle noise,low energy consumption and environmental protection.compared with traditional levelers.

该系列矫平机的特色之处在于：采用分组驱动板材矫正机(ZL200420001176.0)和一种轴装式减速电机矫平机(ZL200520007514.6)两种国家专利技术，每根上辊由一套减速电机驱动，每两根下辊由一套动力系统驱动，从而使各辊的线速度与所接触部位的板料速度相一致，消除了传统传动系统存在的板料与辊面之间的摩擦和传动系统内部的机械干涉问题，同时由于工作辊的轴承均采用轧机用调心辊子轴承，摩擦阻力小，因此，该系列矫平机与传统矫平机相比，矫平质量高、噪音小、能耗低、节能环保。

The results show that with the increase of strain rate, the grain sizes of thermal simulation AZ31B alloys with different deformation all decrease; however, when other conditions are the same, the higher deformation will lead to the formation of the smaller grain size, and as the cooling intensity decreases, typical cast structure of AZ31B will appear. With the decrease of roll casting temperature, the dendritic size of roll casting AZ31B alloy sheet prepared by the same strain rate is also reduced, but with the increase of strain rate, the dendritic size of the alloy sheet prepared by the same initial roll casting temperature is decreased, and the tendency of dendritic streamline is strengthened. During the roll casting process of AZ31B alloy, rolling force should not be large, otherwise it will cause heat cracking.

研究结果表明：在不同应变量下，热模拟样品的晶粒粒度均随应变速率的增加而减小，而当其他条件相同时，变形量越大晶粒粒度越小，冷却强度降低，合金呈典型铸态组织；利用铸轧技术生产的AZ31B合金，当应变速率一定时，随着初始铸轧温度的降低，铸轧态板材的树枝晶粒度逐渐减小；而在初始铸轧温度一定时，随着应变速率的增大，铸轧态合金板材的树枝晶粒度也逐渐减小；而随着应变速率的提高，树枝晶沿轧向呈流线状排列的趋势增强；在AZ31B合金铸轧过程中，轧制力不能太大，否则容易引起热裂。

An object of the present invention is to provide an apparatus for cutting a sheet-shaped material, which makes it possible to accurately cut the sheet-shaped material without the occurrence of cracks on the finished product side and burrs on the cutting surface of the finished product.

本发明提供了新的一种切割成型纸材料的设备，它可以做到精确切割成型纸材料而不会发生成品纸面上的裂纹和切割面上的粘胶。

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

They are to the Noughties what yuppies were to the Eighties .

那在六十年代是时髦的，但在八十年代肯定是过时了