Wear and tear in any heavy machinery or application is a common. Wear can be chemical or mechanical, depending on various factors.
The wear factors are categorized into two types – Primary and Secondary. These are further sub-classified into different factors. Let’s understand.
Primary Wear Factors
Abrasion
Friction
Impact
These factors are responsible for higher loss of wear or material as compared to the secondary wear factors.
Secondary Wear Factors
Erosion
Corrosion
Heat
Cavitation
These factors do not cause wear and tear as much as the primary factors. However, they still need to be taken into consideration to arrive at a holistic solution. The reason is that there is hardly any application in any industry which is prone to only one type of wear.
How Hardfacing Electrodes Can Help?
Hardfacing welding electrodes are specially designed for surfacing applications that are highly vulnerable to primary and secondary wear. They are also designed to protect parts that are subjected to severe abrasion.
However, it is important to understand that simple hardness in an application doesn’t give assurance of the longer life of a component. It should have the right amount of Low Alloy to give a longer life as well as tackle the wear areas. This means that a combination of hardness and alloy is necessary to get effective results.
Hardfacing electrodes find their applications in Thermal Power Plant, Steel plant, Mines, Cement plant mines and other mining areas to repair the hardfacing material of handling buckets in porcelain machines and wheel loaders. In general, depending on the type of material ore such as coal, limestone or iron ore, the typical wear factors in the application are high abrasion that is caused by non-metallic particles on metal combined with impact. Hence, it is safe to assume that simple high iron carbide deposits that have 60 HRC hardness are likely to have a longer life.
However, this is not enough. You also need to consider the application/service condition on-site, closely look at the topography and other climatic or geographical conditions under which it is working.
If you are looking for a wide range of welding electrodes and alloys to tackle the wear factors, D&H Sécheron can meet all your requirements.
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