The cleaning method of nodular cast iron manhole cover

In the ordinary use of ductile iron manhole cover to be properly maintained, regular cleaning of it, so that it can guarantee its use quality and the later service life.Botou tianlong casting need to check regularly to ensure its safety and stability. Let's take a look at the cleaning method of the nodular cast iron manhole cover.

1. Ductile iron manhole cover surface dust

Botou tianlong casting ductile iron manhole covers are usually made in dusty places and often have a lot of dust and often fall on the surface of the equipment. They can be removed with water or alkaline solution, but the dust is attached to high pressure water or steam to clean.

2. Ductile iron manhole cover surface floating-iron powder or embedded iron

On any surface, free iron will rust and corrode the stainless steel. Therefore, it must be removed. The powder can be removed with the dust, some adhesion is very strong and must be treated according to the embedded iron.

3. Nodular cast iron well cover scratches

In order to prevent process lubricants or products or dirt retention, the scratches and other rough surfaces must be mechanically cleaned.

4. Ductile iron manhole cover rust

The rust of stainless steel products or equipment can sometimes be seen before or during production, which indicates that the surface is seriously polluted. The rust must be removed before the equipment is put into use, and the cleaned surface should be inspected by iron test or water test.