板材

In this paper, with an original designed tool and selected welding parameters, 2024-T4 aluminum alloy sheets were friction stir welded successfully. A series of weld experiments were performed; the microstructure and the mechanical properties of the joints were analyzed. The influences of the welding parameters upon the quality of the joints were studied. The optimized welding parameters window was obtained in which high quality joints can be made and the tensile strength of the optimized joints were more than 80% of that of parent metal. The residual stresses of FSW joints have been investigated by using the Hole-drilling method.

本文自主设计搅拌头，通过选择合适的工艺参数，成功实现了硬铝合金2024-T4板材搅拌摩擦焊接；通过对接头成形和微观组织的研究得到可以实现焊接的工艺参数范围和工艺参数对接头成形的影响规律，并结合接头力学性能研究形成了接头性能与工艺参数之间的关系，并据此建立了优化工艺参数窗口，优化工艺参数下接头的抗拉强度可达到母材的80%以上。

In the year 2007 and 2008, Rund rank into 10 of 50 companies which do well in steel sales, and is one of the top 100 faithful enterprises in Tianjin.

润德集团自成立以来，抓住机遇，赢得了发展优势，保持快速增长。2006年、2007年、2008年度被评为&天津地区钢铁营销50强&企业前十名，&百家诚信企业&、&板材类10强&。2008年度，被天津经济开发区评为&百强企业&，2009年度被评为&天津企业100强&，&中国服务业500强&。

Stainless steel material: stainless steel series of Nippon Steel, Pohang Stainless Steel Series, Po new stainless steel series, TISCO Stainless Steel Series: strip, plates, rods, profiles; SUS201 SUS202 SUS301 SUS302 SUS303 SUS304 SUS305 SUS316 SUS316L other special materials piano wire, dual-phase steel, spring steel

不锈钢材料：新日铁不锈钢系列，浦项不锈钢系列，宝新不锈钢系列，太钢不锈钢系列：带材，板材，棒材，型材； SUS201 SUS202 SUS301 SUS302 SUS303 SUS304 SUS305 SUS316 SUS316L 其他特殊材料（琴钢线、双相钢、弹簧钢

Add salt and pepper, spread in pie plate.

加盐并且胡椒，传播在饼板材里。

Secondly, it summarizes the development of cold-formed sections and latest trend about stability of cold-formed beams and purlins. Finally, some possible improvements in stability of cold-formed beams and purlins are anticipated.

其中普通钢结构主要指采用大截面和厚板的结构(因表面涂有防锈漆，俗称&红钢&的结构)；而轻钢结构则主要指以轻型H型钢或冷弯薄壁型钢作为承重骨架，用轻型板材作围护的结构(图 1 )。

Our main products: Bluelanty flooring deck series, light-keel/purline series, colored roof and wall sheet series various alloyed metal plate series Aluminum-Magnesium and Titanium-zinc alloy roof series light-steel villa and so on.

公司主要产品有：碧澜天结构钢承板系列、轻钢龙骨檩条系列、琉璃钢瓦屋面及墙面系列、各种复合金属板材系列、铝镁钛锌合金屋面系列及钢结构建筑屋面系统、轻钢别墅等。

Our main products: Bluelanty flooring deck series, light-keel/purline series, colored roof and wall sheet series; various alloyed metal plate series; Aluminum-Magnesium and Titanium-zinc alloy roof series; light-steel villa and so on.

公司主要产品有：，轻钢龙骨檩条系列、琉璃钢瓦屋面及墙面系列、各种复合金属板材系列、铝镁钛锌合金屋面系列及钢结构建筑屋面系统、轻钢别墅等。

Our main products: bluelanty flooring deck series, light-keel/purline series, colored roof and wall sheet series; various alloyed metal plate series; aluminum-magnesium and titanium-zinc alloy roof series; light-steel villa and so on.we have three national manufacturing bases and set up selling network in china's main cities with annual production value more than ten millions.

公司主要产品有：碧澜天结构钢承板系列、轻钢龙骨檩条系列、琉璃钢瓦屋面及墙面系列、各种复合金属板材系列、铝镁钛锌合金屋面系列及钢结构建筑屋面系统、轻钢别墅等。

Joint enterprise NEW HONGTAI MACHINERY CO., LTD.(QINGDAO HONGTAI WOODWORKING MACHINERY MANUFACTURE CO., LTD.) professions manufacturing Wide Sander, Spiral Cutter head Planer Sander and series precise slide saw CD-OWADA. They can process Plank Material Artificial Marble lacquer of width with 1600mm, 1300mm, 1000mm, 950mm and 650mm. Import parts make the saw.

中外合资新鸿泰机械有限公司（原青岛鸿泰木工机器制造有限公司）是专业制造宽带砂光机、刨砂机、精密推台锯的厂家，产品应用于宽度为1600mm、1300mm、1000mm、950mm、650mm等规格尺寸的板材、人造大理石、油漆等材质的表面加工，另有采用进口部件组装的精密推台锯。

It is easier to make provision for cooling in a plate column;coils can be installed on the plates.

供应冷却在板式塔是更加容易的；卷在板材可以安装。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！