您好,欢迎访问济南顺健金属制品秒速赛车玩法官方网站! 加入收藏 | 联系我们

contact
公司新闻当前位置:秒速赛车-新闻资讯 > 公司新闻 >

球墨铸铁井盖与普通灰铸铁井盖的区别有哪些呢?

来源:http://www.kpp647.com添加时间:2020-06-15 18:21:51

  灰铸铁石墨平整扁平而球墨铸铁石墨呈圆形和球形,不过球状铸铁的球化是很好的,如果它产生类似于击中碳钢的声音,而灰铁敲击的声音,非常闷,那么球墨铸铁井盖与普通灰铸铁井盖的区别有哪些呢?

  The graphite of gray cast iron is flat and flat, while the graphite of nodular cast iron is round and spherical. However, the spheroidization of nodular cast iron is very good. If it produces a sound similar to hitting carbon steel, and the sound of gray iron knocking is very dull, what is the difference between nodular cast iron manhole cover and ordinary gray cast iron manhole cover?

  1、在冶炼方法上,球墨铸铁是通过在熔炼过程中向灰铸铁中加入孕育剂和球化剂,使石墨从散落的絮状物中生成球状,从而减少铁素体的切断,提高强度,提高强度。

  1. In the smelting method, the spheroidizing agent and inoculant are added to the gray cast iron in the smelting process, so that the graphite can form a ball from the scattered floccules, so as to reduce the cut-off of ferrite, improve the strength and enhance the strength.

           QQ截图20160713182706.pngQQ截图20160713182639.png

  2、对于球化率,可以说不同球化率的球墨铸铁产品质量和价格不同,普通工厂的球化率已达到合格产品的85%,球化率为85%是由于铸造时间,没有良好的球化和低温铁的形成,制成品承受的压力不能满足要求。

  2. For spheroidizing rate, it can be said that the quality and price of ductile iron products with different spheroidizing rate are different. The spheroidizing rate of ordinary factory has reached 85% of the qualified products. The spheroidizing rate is 85% because of the casting time, there is no good spheroidizing and low-temperature iron formation, and the pressure on the finished products can not meet the requirements.

  3、从断裂的外观可以简单地区分球状铁和灰铁,用肉眼,灰铁骨折颗粒相比较厚,灰白色,晶面具有金属光泽,结节铁的骨折颗粒很细,呈黑灰色,如结节好的单词没有金属光泽,如有发白光泽,常见的状态是出现白口组织。

  3。 From the fracture appearance, it can be simply divided into nodular iron and gray iron。 With the naked eye, the fracture particles of gray iron are relatively thick, gray white, with metallic luster on the crystal surface。 The fracture particles of nodular iron are very thin and black gray, such as the words with good nodules have no metallic luster, and if there is white luster, the common state is the appearance of white tissue。

  4、球墨铸铁具有高强度和良好的韧性,因此球墨铸铁井盖比同类型的灰铸铁井盖轻约30%, QT500-7为球墨铸铁商标,铁水熔体温度不低于1456℃,在球化处理时做稀土镁硅铁并选择焦炭,其中硫含量低,球化水平可达3级以上。

  4. Nodular cast iron has high strength and good toughness. Therefore, the cover of nodular cast iron well is about 30% lighter than that of the same type of gray cast iron well. QT500-7 is the trademark of nodular cast iron. The melt temperature of molten iron is not lower than 1456 ℃. Rare earth magnesium silicon iron is made and coke is selected in the nodularization treatment. The content of sulfur is low and the level of nodularization can reach above grade 3.

  5、灰铸铁井盖直接熔炼成铁水,不含任何辅助材料,然后倒入井盖,然而,球墨铸铁井盖是通过添加球化剂,稀土镁和其他金属合金制成的,因此现在市场和相关部门要求使用球墨铸铁井盖,这是因为球墨铸铁井盖的承载能力远远超过灰铁井盖。

  5. The gray cast iron manhole cover is directly melted into molten iron without any auxiliary materials, and then poured into the manhole cover. However, the nodular cast iron manhole cover is made by adding spheroidizing agent, rare earth magnesium and other metal alloys. Therefore, the market and relevant departments now require the use of the nodular cast iron manhole cover, because the bearing capacity of the nodular cast iron manhole cover is far greater than that of the gray iron manhole cover.



  • 版权所有:济南顺健金属制品秒速赛车玩法 地址:山东省济南市天桥区金牛建材市场  
  • 电话:  手机号:18706412842 本网站由提供技术支持  流量统计:
二维码
济南万顺铸业秒速赛车玩法主要为大家提供山东球墨铸铁井盖铸铁护栏落水斗给水管排水管暖气片等产品的批量制作和安装服务,欢迎大家前来选购!
pk10 陕西体彩网 秒速赛车计划 六合宝典 幸运时时彩 秒速时时彩 上海11选五 秒速赛车平台 广东快乐十分