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HARDOX450耐磨板的发热缺陷有哪些呢?

所属分类:常见问题 发布时间:2021-04-06 16:51:30 来源:http://www.lcnmb500.com 浏览量:

耐磨板是一种专门用于大面积磨损情况的板材产品。它是由普通钢板、耐热钢板和不锈钢板堆焊而成的体积分数在50%以上的以Cr7C3碳化物为主的合金耐磨层。

Wear resistant plate is a kind of plate product specially used for large area wear. It is a Cr7C3 carbide based alloy wear-resistant layer with volume fraction more than 50%, which is made of common steel plate, heat-resistant steel plate and stainless steel plate.

耐磨钢板具有很高的耐磨性、抗冲击性、变形性和焊接性,可以直接加工成钢板这样的工程零件,如卷边变形、切割、冲孔等。那么HARDOX450耐磨板的发热缺陷有哪些呢?

Wear resistant steel plate has high wear resistance, impact resistance, deformation and weldability. It can be directly processed into engineering parts such as steel plate, such as curling deformation, cutting, punching, etc. So what are the heating defects of hardox450 wear plate?

1.过热:耐磨450衬板加热温度过高,加热时间过长,使晶粒长大,晶粒间结合力减弱,力学性能变差。

Overheat: the high temperature and long heating time of wear-resistant 450 liner make the grains grow up, the bonding force between grains weaken and the mechanical properties become worse.

HARDOX450耐磨板的发热缺陷有哪些呢?(图1)

2.过烧:在过热的基础上,加热温度保持过高,晶界氧化或熔化,轧制时开裂(报废)。

Overburning: on the basis of overheating, the heating temperature is kept too high, the grain boundary is oxidized or melted, and cracks (scrapped) during rolling.

3.脱碳:原料表层碳被氧化还原,降低了耐磨450衬板的表面硬度,很多合金钢和低合金钢不允许脱碳。

Decarburization: the surface carbon of raw material is oxidized and reduced, which reduces the surface hardness of wear-resistant 450 liner. Decarburization is not allowed for many alloy steels and low-alloy steels.

4.铁鳞;加热温度越高,加热时间越长,炉内氧化气氛越强,产生的氧化铁皮越多,导致耐磨450衬板烧损和表面缺陷(点蚀、氧化铁皮等)。)的耐磨450衬里。

   4. Iron scale; the higher the heating temperature and the longer the heating time, the stronger the oxidation atmosphere in the furnace, and the more oxide scale produced, resulting in the ablation and surface defects (pitting, oxide scale, etc.). )Wear resistant 450 lining.

5.加热不均匀:沿钢坯断面或长度方向温度不同,导致轧制过程中产生扭曲、弯曲和内部张力开裂。

Uneven heating: different temperatures along the section or length of the billet lead to distortion, bending and internal tension cracking in the rolling process.

以上是HARDOX450耐磨板的缺陷,希望对大家有所帮助。更多精彩内容请大家关注:http://www.lcnmb500.com,会有更加精彩内容呈现。

   the above are the defects of hardox450 wear-resistant plate, I hope to help you. For more highlights, please pay attention to: http://www.lcnmb500.com , there will be more wonderful content.