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Mn13轧制耐磨钢板的开发生产的作用

所属分类:行业动态 发布时间:2021-05-12 来源:https://www.lcnaimoban.com/ 浏览量:

耐磨钢大体分为高锰耐磨钢(Mn13)、中、低合金耐磨钢(NM360~600)、铬钼硅锰钢、双金属复合耐磨钢、耐气蚀钢、耐磨蚀钢和特殊耐磨钢等数种类别。其中Mn13钢种特点是,钢的初始硬度仅约HB180左右,但在受到强烈冲击或较大挤压载荷作用下,钢的表层会瞬时产生加工硬化,且随着这种硬化效果的快速积累,使钢板表面硬化能迅速升高至HB500级以上,而钢的基板仍始终保持奥氏体钢良好的抗冲击性能。
Wear resistant steel can be divided into high manganese wear-resistant steel (Mn13), medium and low alloy wear-resistant steel (nm360-600), chromium molybdenum silicon manganese steel, bimetal composite wear-resistant steel, cavitation resistant steel, wear-resistant steel and special wear-resistant steel. The characteristic of Mn13 steel is that the initial hardness of the steel is only about hb180, but under the action of strong impact or large extrusion load, the surface layer of the steel will produce work hardening instantaneously. With the rapid accumulation of this hardening effect, the surface hardening of the steel plate can rapidly rise to above hb500, while the base plate of the steel still maintains the good impact resistance of austenitic steel.
显然,正是这种表面极易冷变形硬化而钢体又能承受强烈冲击的材质特点,决定了Mn13钢种尤其适合制作长时间经受强烈冲击物料磨损的耐磨构件。故长期以来被广泛应用于矿山、煤炭、水泥、冶金、建材、铁路、电力等行业的机械设备中(抛丸机、球磨机、粉碎机、刮板输送机、挖掘机、装载机、推土机、搅拌机、堆料机、给料机和铁矿烧结机等)。可以说,Mn13是我国当前各类耐磨钢中用途最广、用量最大的钢种(年消费需求150~200万t)。
Mn13耐磨板
Obviously, it is the material characteristics that the surface is easy to be cold deformed and hardened, and the steel body can withstand strong impact, which determines that Mn13 steel is especially suitable for making wear-resistant components that can withstand strong impact material wear for a long time. Therefore, it has been widely used in mining, coal, cement, metallurgy, building materials, railway, electric power and other industries for a long time (shot blasting machine, ball mill, pulverizer, scraper conveyor, excavator, loader, bulldozer, mixer, stacker, feeder and iron ore sintering machine, etc.). It can be said that Mn13 is the most widely used and the largest consumption steel among all kinds of wear-resistant steel in China (annual consumption demand is 1.5-2 million tons).
Mn13钢种主要分Mn13铸件和Mn13轧制钢板两种产品类别。前者系传统产品,长期以来为我国所普遍使用,已形成ZGMn13-1/2~5等5个牌号的产品国标(GB/T5680-1998)。
Mn13 steel is mainly divided into Mn13 casting and Mn13 rolled steel plate. The former is a traditional product, which has been widely used in China for a long time, and has formed the national standard of zgmn13-1 / 2-5 (GB / t5680-1998).
后者尚无国标,只有企标(太钢:Q/TX046-2009),目前仅太钢、宝钢等极少数国内厂家具备批量产供条件,应该说尚处于推广发展阶段。然而,随着Mn13轧制钢板强度高、性能均匀稳定、使用寿命较Mn13铸件长7倍之多等性价比优势的日渐凸显,近年来Mn13轧制钢板的需求数量不断扩大,正成为替换传统高锰钢铸件和高铬铸铁的新一代材料。
The latter has no national standard, only enterprise standard (TISCO: Q / tx046-2009). At present, only a few domestic manufacturers such as TISCO and Baosteel have the conditions for mass production and supply, which should be said to be in the stage of promotion and development. However, with the increasingly prominent cost-effective advantages of Mn13 rolled steel plate, such as high strength, uniform and stable performance, and service life seven times longer than Mn13 casting, the demand for Mn13 rolled steel plate is expanding in recent years, and it is becoming a new generation of materials to replace traditional high manganese steel casting and high chromium cast iron.
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