您好,欢迎来到济南万顺铸业有限公司官方网站! 加入收藏 | 联系万顺

3d捕鱼当前位置:3d捕鱼-新闻资讯 > 3d捕鱼 >


来源:http://www.zgcjxdw.com添加时间:2020-01-04 14:04:21


  1. The surface of ductile iron manhole is covered with dust


  Steel castings are usually cast in dusty places, where there is a lot of dust in the air, which constantly falls on the surface of the equipment. They can be removed with water or an alkaline solution. However, sticky dirt requires high pressure water or steam to remove.


  2. Floating iron powder or embedded iron on the surface of nodular cast iron


3d捕鱼  Free iron will rust and corrode stainless steel on any surface. Therefore, it must be removed. Floating powder can generally be removed by dust. Some have strong adhesion and must be treated with embedded iron. In addition to dust, sources of iron on the surface include the use of ordinary carbon wire brushes for cleaning and sand, glass beads or other abrasive peening for carbon steel, low alloy steel, iron castings, or abrasive stainless steel products previously mentioned for nearby stainless steel parts and equipment. There is no stainless steel protection measures for the material or suspension. During the processing, the wire rope, sling and iron bar are easy to be embedded in or contaminate the surface.


  3. Scratches on the hole cover of nodular cast iron


3d捕鱼  Scratches and other rough surfaces must be mechanically cleaned to prevent the accumulation of process oil or product or dirt.


  4. 球墨铸铁井盖锈斑

  4。 Rust spots on ductile iron manhole cover


  Corrosion of stainless steel products or equipment sometimes occurs before or during processing, which indicates that its surface is seriously polluted。 Rust must be removed before the equipment is put into use。 The cleaned surface shall be tested for iron and / or water。

  5. 粗磨加工

  5。 Rough grinding


  Grinding and machining produce rough surfaces, grooves, laps, and burrs. Each defect may cause a certain degree of damage to the metal surface, so that it can not be removed by pickling, electropolishing or shot peening. Rough surface may be the source of corrosion and deposition products. It is not allowed to use rough grinding to clean weld defects or remove redundant weld reinforcement before re welding. In the latter case, the fine abrasive should be used again.


  The above is a detailed introduction to the cleaning methods of Shandong ductile iron manhole covers。 For more information, please click http://www。jnwszy。com

  • 版权所有:济南万顺铸业有限公司  地址:山东省济南市天桥区金牛建材市场  
  • 电话:  手机号:13475913858 / 18753109752   本网站由提供技术支持  流量统计:
白小姐六肖选一肖中特 万人场棋牌 彩票大赢家 万人场棋牌 白小姐六选一 lol竞猜 万人场棋牌 神扑克 一万元本钱赚钱 lol竞猜