您好,欢迎来到济南新雄经贸有限公司官方网站!

400-0616-756

行业动态

Industrydynamics

产品中心
当前位置: 首页-新闻中心-行业动态-沸腾钢板与镇静钢板有哪些不一样你知道吗?

沸腾钢板与镇静钢板有哪些不一样你知道吗?

来源:http://www.jnxxjm.com

【 发布于:2019-05-17 15:31:33 】


1、沸腾钢板

1. Boiling steel plate

沸腾钢板是由普通碳素构造钢沸腾钢热轧成的钢板。沸腾钢是一种脱氧不完整的钢,只用一定量的弱脱氧剂对钢液脱氧,钢液含氧量较高,当钢水注入钢锭模后,碳氧反响产生大量气体,形成钢液沸腾,沸腾钢由此而得名。沸腾钢含碳量低,由于不用硅铁脱氧,钢中含硅量也低(Si<0.07%)。

Boiling steel plate is hot rolled from common carbon structural steel. The boiling steel is a kind of steel with incomplete deoxidization. Only a certain amount of weak deoxidizer is used to deoxidize the molten steel. The oxygen content of the molten steel is high. When molten steel is injected into the ingot mould, the carbon and oxygen reactions produce a large number of gases, forming the boiling of molten steel, which is named boiling steel. The carbon content of the boiling steel is low, and the silicon content in the steel is low (Si < 0.07%) due to the absence of ferrosilicon deoxidization.

沸腾钢的外层是在沸腾所形成的钢液猛烈搅动的条件下结晶成的,故表层纯洁、致密,外表质量好,有很好的塑性和冲压性能,没有大的集中缩孔,切头少,成材率高,而且沸腾钢消费工艺简单,铁合金耗费少,钢材本钱低。沸腾钢板大量用于制造各种冲压件,建筑及工程构造及一些不太重要的机器构造零部件。但沸腾钢心部杂质较多,偏析较严重,组织不致密,力学性能不平均。同时由于钢中气体含量较多,故韧性低,冷脆和时效敏理性较大,焊接性能也较差。故沸腾钢板不适于制造接受冲击载荷、在低温条件下工作的焊接构造及其他重要构造。

The outer layer of boiling steel is crystallized under the condition of violent agitation of molten steel formed by boiling. Therefore, the surface layer is pure, compact, with good appearance quality, good plasticity and stamping performance, without large concentrated shrinkage, fewer cutting heads and high yield, and the consumption process of boiling steel is simple, the consumption of ferroalloys is low, and the cost of steel is low. The boiling steel plate is widely used in the manufacture of various stamping parts, construction and engineering structures, and some less important machine parts. However, there are many impurities, serious segregation, non-compact structure and uneven mechanical properties in the core of boiling steel. At the same time, due to the high gas content in steel, the toughness is low, the cold brittleness and aging sensitivity are high, and the welding performance is poor. Therefore, the boiling steel plate is not suitable for manufacturing welding structures and other important structures which accept impact load and work at low temperature.

20171214790170.jpg

2、镇静钢板

2. Sedative plate

镇静钢板是由普通碳素构造钢镇静钢热轧制成的钢板。镇静钢是脱氧完整的钢,钢液在浇注前用锰铁、硅铁和铝等停止充沛脱氧,钢液含氧量低(普通为0.002-0.003%),钢液在钢锭模中较宁静,不产生沸腾现象,镇静钢由此得名。

Killed steel plate is hot rolled from common carbon structural steel. Killed steel is a complete deoxidized steel. Before pouring, it is stopped to deoxidize adequately with ferromanganese, ferrosilicon and aluminium. The oxygen content of molten steel is low (usually 0.002-0.003%). The molten steel is quiet in ingot mould and does not boil. Killed steel is named after it.

在正常操作条件下,镇静钢中没有气泡,组织平均致密;由于含氧量低,钢中氧化物夹杂较少,纯洁度较高,冷脆和时效倾向小;同时,镇静钢偏析较小,性能比拟平均,质量较高。镇静钢的缺陷是有集中缩孔,成材率低,价钱较高。因而,镇静钢材主要用于低温下接受冲击的构件、焊接构造及其他请求强度较高的构件。

Under normal operation conditions, there are no bubbles in killed steel, and the structure is dense on average. Oxygen content is low, oxide inclusions in steel are less, purity is higher, cold brittleness and aging tendency is small. At the same time, killed steel has smaller segregation, average performance and higher quality. The defects of killed steel are concentrated shrinkage, low yield and high price. As a result, killed steel is mainly used for components subjected to impact at low temperature, welding structures and other components requiring high strength.

低合金钢板都是镇静钢和半镇静钢钢板。由于强度较高,性能优越,能节约大量钢材,减轻构造重量,其应用已越来越普遍。

Low alloy steel plates are both killed and semi-killed steel plates. Because of its high strength, superior performance, large amount of steel can be saved and structural weight can be reduced, its application has become more and more common.

本文由济南镀锌管整理发布,您是不是对这些内容有所了解了呢?更多的内容请点击:http://www.jnxxjm.com我们会有更多精彩内容等你查看。

This article is published by Jinan Galvanized Pipe. Do you know something about these contents? For more information, please click: http://www.jnxjm.com. We will have more wonderful content for you to check.



上一篇:热镀锌槽钢质量好坏需要判断哪些?
下一篇:镀锌管在温室大棚中起到什么作用?