冷轧

Proceeded from the practice of the new type cold rolling mill with multi-array rolls and through the analysis of various factors in the production of tube cold-rolling mill, some improvements have been made with the raising productivity.

从设计和调试多排辊式冷轧管机的实践出发，以生产率计算公式为依据，分析了影响冷轧管机产量的各种因素，提出了一些相应的改进措施。

Utilized the correlative knowledge of mathematics and theoretical mechanics, the movement measure of the rolling forming of rectangle ring have been studied that based on the ring rolling theory. And the corresponding geometrical models and mathematical models have been established. It was revealed the variation law of ring in the cold rolling process.With the rolling processing, the inside and outside diameters of ring gradually increased with the cures similarly hyperbolic and the augment speed of the inside diameter was obviously larger than the augment speed of the outside diameter. With the rolling processing, the displacement, speed and acceleration of the ring centre gradually increased in the feeding direction in the horizontal and vertical ring rolling mill. With the rolling processing, the moment of inertia which ring reeled its centre and the whirligig of ring gradually increased. It caused the rotary speed gradually decreased. And it was benefit to decrease the circle tolerance and improve the precision of final molding.

本文基于环件轧制理论，运用相关的数学知识和理论力学知识，研究了冷轧过程中矩形截面环件轧制成形的运动测量，并建立相关的几何模型和数学模型，揭示了冷轧过程中环件的变化规律：随着轧制过程的进行，环件的内外径随类似于双曲线的曲线逐渐增大，且环件内径增大速度大于外径增大速度；在卧式轧环机和立式轧环机下，随着轧制过程的进行，环件中心的位移、速度及加速度不断增大；随着轧制过程的进行，环件绕其中心的转动惯量不断增大，导致环件的转速不断减小，这样有利于环件的整圆和最终成形环件的精度。

The results show that the longitudinal strength and elongation of alumina dispersion strengthened copper alloy cold rolled in unidirection are higher than that of transverse values for both cold rolling and annealing states.

结果表明：合金经过单向冷轧变形后，无论是冷轧态还是退火态纵向强度、伸长率均高于横向。

Whereas, in the unrecovered sample which was heated by laser for short time, although the＜001＞∥ND subgrains growth could be observed, but the growing preference was not so sharp as that in the recovered case.

通过透射电镜对铜的微观亚结构形貌观察与取向分析表明，在初始晶粒为15μm、经88％冷轧的样品中发现，冷轧基体中存在清晰的亚晶粒间界，并存在＜001＞∥ND取向区域；＜001＞∥ND亚晶周围聚集有＜011＞∥ND、＜112＞∥ND和＜123＞∥ND取向亚晶；＜001＞∥ND亚晶内具有较低的位错密度，而其它取向亚晶位错密度相对较高。

Equipped with a variety of advanced machines for cold processing searmless we produce diffcrent sizes and types of exactitude seamless steel tubes,The indexes of our products have reached or forereached the requirements of products can reach500 ton.

我公司成立于2000年，是一家专门从事冷轧高精密黑色、有色金属无缝管的专业生产厂家，拥有国内先进的冷轧无缝管机，可生产多种规格、品种的精密无缝管材、管件，产品指标均已达到或超过GB8713-88标准，年设计产量可达500吨。

This article is mainly analysis the applicability of using the CSP production to make the cold rolling base plate .

本文从CSP设备、工艺及CSP产品的几何尺寸、组织和性能的角度分析了CSP产品做冷轧基板的适用性，并提出CSP产品做冷轧基板的一般要求。

The applicability of using the CSP product to make the cold rolling base plate was mainly analyzed in this article.

从CSP设备、工艺及CSP产品的几何尺寸、组织和性能的角度分析了CSP产品做冷轧基板的适用性，并提出CSP产品做冷轧基板的一般要求。

A lubricating oil compound was developed by analyzing the tribological traits and lubricating model of cold rolling mill for copper plates ,which can meet the technical lubricating of the four roller rolling mill and has good lubricating and anneal cleaning properties.

通过对铜带材冷轧加工的摩擦学特性及润滑模型分析，开发了具有良好润滑性及Ebner光亮退火清洁性的润滑剂组合物，完全满足了铜带材四辊可逆冷轧机组的工艺润滑要求。

In order to further improve product quality, the company improved the cold-rolled sheet, press parts, drawing pieces, mold finishing, and other production equipment, now has 16-300 T on forging presses more than 100 Taiwan, cold-rolled sheet steel four sets of equipment, liquefied petroleum gas Annealing furnace four sets.

为了进一步提高产品品质，公司完善了冷轧薄板、冲压件、拉伸件、模具精加工等生产设备，现拥有16—300T上锻冲床100多台、冷轧薄板带钢设备4套、液化气退火炉4套。

The effects of one-step and two-step cold rolling schedule on deep drawability and texture of ferritic stainless steel were investigated comparatively.

比较了一步冷轧和二步冷轧对铁素体不锈钢深冲性能和织构的影响。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。