常州精密钢管博客网

纯氧顶吹转炉炼钢法

纯氧顶吹转炉炼钢法
  这种方法是1952年以后发展起来的新技术,它是目前世界上采用较多也是较先进的一种方法。纯氧顶吹转炉炼钢有以下优点:
  1、生产速度快 由于用纯氧吹炼,就会高速降碳,快速提温,大大缩短冶炼时间。一座300t转炉吹炼时间不到20min,包括辅助工作时间在内,一共不超过1h。
  2、品种多、质量好纯氧顶吹转炉既能炼普通钢,也能炼普通低碳钢。如首都钢厂采用这种方法成功地试炼了一百多种钢材。由于用纯氧吹炼,钢中氮、氢等有害气体含量较低。
  3、基建投资和生产费用低 纯氧顶吹转炉的基建投资相当于同样生产量的平炉车间的60~70%,生产费用也低于平炉。
  目前纯氧顶吹转炉随着氧枪的多孔喷头的研制成功,大大提高了单位时间内的供氧量,并由于操作技术上的革新(例如,用电子计算技术来调节、控制冶炼过程),不论转炉容量的大小,吹炼时间基本上相差不多,即使300t转炉,净吹氧时时也可缩短到12min左右。在一定限度内,炉容量越大,经济效果越好,因此顶吹转炉迅速走向大型化。现在世界上最大的转炉为350t,并且正在研究建造400~450t转炉。

常州仁成金属制品有限公司专业生产高精度精密钢管

Basic oxygen steelmaking (BOS, BOF, Linz-Donawitz-Verfahren, LD-converter) is a method of primary steelmaking in which carbon-rich molten pig iron is made into steel. The LD-converter is named after the Austrian placenames Linz and Donawitz (a district of Leoben). The vast majority of steel manufactured in the world is produced using the basic oxygen furnace. Modern furnaces will take a charge of iron of up to 350 tons and convert it into steel in less than 40 minutes. The LD converter is a refined version of the Bessemer converter where blowing of air is replaced with blowing oxygen.

Blowing oxygen through molten pig iron lowers the carbon content of the alloy and changes it into low-carbon steel.

The process is known as basic due to the pH of the refractories - calcium oxide and magnesium oxide - that line the vessel to withstand the high temperature of molten metal.

Basic oxygen steelmaking (BOS, BOF, Linz-Donawitz-Verfahren, LD-converter) is a method of primary steelmaking in which carbon-rich molten pig iron is made into steel. The LD-converter is named after the Austrian placenames Linz and Donawitz (a district of Leoben). The vast majority of steel manufactured in the world is produced using the basic oxygen furnace. Modern furnaces will take a charge of iron of up to 350 tons and convert it into steel in less than 40 minutes. The LD converter is a refined version of the Bessemer converter where blowing of air is replaced with blowing oxygen.

Blowing oxygen through molten pig iron lowers the carbon content of the alloy and changes it into low-carbon steel.

The process is known as basic due to the pH of the refractories - calcium oxide and magnesium oxide - that line the vessel to withstand the high temperature of molten metal.

History
The first basic oxygen steelmaking process was the LD process developed in 1952 by voestalpine AG in Linz, Austria.[2] Some major steelmaking companies in the US did not convert to this process for some years, with the last Bessemer converter still operating commercially until 1968. The LD process replaced both the previously common Siemens-Martin process, also known as the open-hearth process, and the Bessemer process. European companies replaced open hearth furnaces with BOF rapidly after WWII, but US companies were reluctant to give up the old and tried open hearths. The first company in the U.S. to use this type of furnace was McLouth Steel in Trenton, Michigan.

The first BOF in North America was installed at Dofasco in Hamilton, Ontario, Canada.



图片加载中...
❤ 请关注 微信公众号: steeltuber.
 转载请保留链接: http://www.josen.net/Steel-Knowledge/Basic-oxygen-steelmaking.html

精密钢管,无缝钢管,电机壳钢管,汽车用钢管,汽车管件生产厂家

搜索本站钢铁技术
★↓在此搜索查找钢铁材料知识↓★↘

互联网 www.josen.net


«   2020年6月   »
1234567
891011121314
15161718192021
22232425262728
2930
钢铁钢管标准
精密钢管博客友链
钢材厂商推荐

常州精密钢管博客网主办单位:
常州仁成金属制品有限公司 是 专业的 精密钢管 生产厂家,汽车钢管,电机壳钢管 生产单位。
江苏常州钢管生产厂家,热轧冷拔冷轧钢管知识无缝钢管钢铁行业信息,精轧精密钢管精拉钢管等高精度无缝钢管,钢厂钢管厂钢管现货钢材价格,江苏钢管,常州钢管,钢管厂,江苏钢管厂,常州钢管厂。


友情链接:

常州精密钢管博客网
(常州仁成金属钢管制品生产厂家博客网站)
www.josen.net©2006-2020
苏ICP备08003692号-1

关于本站文章列表百度搜索本博快站模拟电脑访问



分享:

支付宝

微信

扫一扫,想赞多少就多少~

本站会员尊享信息推送下载及留言特权,现在就加入我们吧!登录注册
登录
用户名
密码
注册
用户名
密码
确认密码
昵称
邮箱
获取邀请码
邀请码
找回密码
用户名
邮箱
※ 重置链接将发送到邮箱