Development of elongation-controlled mill and its functional products

伸长控制轧机及其功能产品的开发

• 批准号: 07505019
• 负责人: SAITO Yoshihiro
• 金额: $ 7.68万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07505019/
• 关键词: continuous rolling; elongation-control mill; interstand force; strip rolling; bar rolling; shape rolling; mechanical property; rolling characteristics; 線材圧延; 集合組織; 延伸制御圧延; 線材; 異形条; サイズフリー圧延; 連続孔型圧延; 圧縮力付加圧延

The objective of this study is to develop a novel rolling technique for size-free or material property-free rolling by controlling interstand forces in tandem rolling mill train (elongation-controlled rolling). After a prototype mill was designed and constructed, commercial metals have been successfully rolled into several sections. The obtained main results are as follows,(1) The interstand forces are changed widely from tensile to compressive by controlling roll speeds of stands independently. As a result, the elongation (or lateral spread) of materials during rolling is changed remarkably. This effect is more obvious in case of materials with smaller aspect ratio (width/thickness).(2) In case of square wires, arbitrary combinations of side length and corner radius of product are achieved with H-V-H-V-H arranged glooveless rolls by interstand force.(3) In case of H-shaped wires, the rib height of product is controlled.(4) Material rolled with tensile interstand forces shows higher tensile strength and hardness than those with compressive ones.The proposed method is concluded to an effective size-free rolling method of various products.

本研究的目的是开发一种新的轧制技术，通过控制连轧机组的机架间力来实现无尺寸或无材料性能的轧制（伸长控制轧制）。在设计和建造了原型轧机之后，商业金属已经成功地轧制成几个部分。得到的主要结果如下：(1)通过独立控制机架轧辊速度，机架间力由拉伸力转变为压缩力。结果，轧制过程中材料的伸长率（或横向扩展）发生了显著变化。这种效果在具有较小长宽比（宽度/厚度）的材料的情况下更为明显。(2)对于方丝，H-V-H-V-H排列的无套辊，通过机架间力实现产品边长和转角半径的任意组合。(3) h型线材，控制产品肋高。(4)有拉伸间力轧制的材料比有压缩间力轧制的材料具有更高的抗拉强度和硬度。该方法是一种有效的各种产品的无浆料轧制方法。

项目成果

斎藤好弘: "延伸制御圧延機による各種材料の平線圧延特性" 第48回塑性加工連合講演会講演論文集. 287-288 (1997)

Yoshihiro Saito：“使用拉伸控制轧机的各种材料的平轧特性”第 48 届塑料工作联盟会议记录 287-288（1997 年）。

斎藤好弘: "延伸制御圧延機の試作と試験圧延" 第28回塑性加工春季講演会講演論文集. (1997)

Yoshihiro Saito：“拉伸控制轧机的原型生产和试轧”第 28 届春季塑料加工会议论文集（1997 年）。

Y.Saito: "Production of H-shaped bar by the Elongation-Controlled Rolling" The Proceedings of the 49th Japanese Joint Conference for the Technology of Plasticity. 5-6 (1998)

Y.Saito：“通过伸长控制轧制生产 H 型棒材”第 49 届日本塑性技术联合会议论文集。

斎藤好弘: "延伸制御圧延機による各種材料の平条圧延特性" 第48回塑性加工連合講演会講演論文集. 287-288 (1997)

Yoshihiro Saito：“使用拉伸控制轧机的各种材料的平轧特性”第 48 届塑料工作联盟会议记录 287-288（1997 年）。

Yoshihiro Saito: "Development of an elongation-controlled mill" Journal of Materials Processing Technology. 80-81. 351 (1998)

Yoshihiro Saito：“伸长率控制轧机的开发”材料加工技术杂志。