Clad Metal Plates

Clad metal plates have two parts: low carbon steel plate and alloy wear-resistant layer. The anti-wear layer generally accounts for 1/3-1/2 of the total thickness; when working, the substrate provides comprehensive performance such as strength, toughness, and plasticity to resist an external force. The wear layer provides the wear resistance performance that meets the requirements of specified working conditions.

The metallurgical bond between the wear-resistant steel alloy wear layer, and the substrate，Through special equipment and automatic welding process, high hardness self-protecting alloy wire is evenly welded on the base material. The number of compound layers is one to two and even more layers. In the process of compounding, due to different alloy shrinkage ratio, uniform transverse cracks appear, which is the remarkable characteristic of clad metal plates.

The wear-resistant layer mainly takes chromium alloy as the main component and adds other alloy components such as manganese, molybdenum, niobium, nickel, etc. The carbide in the metallographic organization is fibrous distribution, and the fiber direction is perpendicular to the surface. Carbide microhardness can reach HV1700-2000 above; the surface hardness can reach HRc58-62. Alloy carbide in high temperature has strong stability, maintains high hardness, and has excellent oxidation resistance, at 500 ℃ within the utterly everyday use.

Clad metal plates have high wear resistance and good impact performance, can be cut, bent, welded, etc., can take welding, plug welding, bolt connection, and other structural connections. It is time-saving and convenient in the maintenance field process. Widely used in metallurgy, coal, cement, electricity, glass, mining, building materials, brick and tile, and other industries, compared with other materials, has a very high-cost performance and has been favored more industries and manufacturers.

What types of material are clad metal plates made of?

Alloy Chemistry
The highest ordinary used alloy facing is a high chromium iron consists of precisely 1/3 of Chromium and in surplus of 4% combined carbon.
WALDUN is making this to correlate to CCO plate with the chemistry of Chromium of 34.0%, carbon of 5.4%, Manganese of 3.5%, and the others at 1.3%, Balance Fe.
Meanwhile, this standard alloy can be changed in many different ways; it can improve the abrasion resistance while lowering the toughness, or the other way round. On the contrary, the matrix can be made harder by reducing the manganese to 1%, with some reduction in firmness. Also, further refinement may be accomplished by the addition of other alloying elements.
Carbides
The substance that provides high chromium powder alloys with their capability to withstand abrasion is the establishment of primary carbides from a chemical compound of iron, Chromium, and carbon, or iron, Chromium, or carbide, which is also known as chromium carbide. Pure, high rate chromium carbide can be manufactured; however, it is costly for large-area preservation, so WALDUN makes use of mixed carbide, which involves both Chromium and iron. This makes up the primary carbide with the formula M7C3, where M specifies the mixture of metal and Chromium in the compound.
Hardness
A standard overlay alloy consists of a compound of chromium carbides in a matrix of a chromium iron-carbon alloy. The hardness of primary chromium carbides is proportionate of 1700HV correlate with. For instance, ordinary workshop steel files, with firmness of 600HV. In general, the hardness of these alloys can be calculated using a Rockwell hardness tester. Even though it neither measures the carbide or the matrix, it gives an agreeable general proof of the hardness of the alloy. An average value of being 54-60 HRC.
Microstructure
In the extension of chemistry, the most significant characteristic of the alloy overlay is its microstructure. Hence, when checked out under a microscope, the carbides will take the form of white substance against a dark background, that that’s the matrix. A perfect microstructure, for more excellent abrasion resistance, must have a dense array of needle-like carbides that, in cross-segment, look as slender hexagons with a small hole in the middle.
Moreover, whenever you notice an appearance of uneven shaped spots or avenues of white. Such as either ladder, fish-bone patterns, or central poles with rungs on any of the sides. This is a sure sign that the carbon content is beneath optimum for high abrasion resistance, but it has also improved impact-resistant properties.

What types of companies are buying clad metal plates?

Any company that has equipment with components that slide against each other or that are exposed to abrasive or corrosive materials or impact damage such as steel mills, pipe mills, aluminum mills, chemical companies, mining, military, etc.

Are there different types of clad metal plates?

Yes, clad metal plates can be made from many different materials: Q235, Q345 are very common, other material can be used as base plate. Standard alloy can be changed in many different ways; it can improve the abrasion resistance while lowering the toughness, or the other way round. On the contrary, the matrix can be made harder by reducing the manganese to 1%, with some reduction in firmness. Also, further refinement may be accomplished by the addition of other alloying elements.

How are clad metal plates used?

Clad metal plates are used to prevent damage to the main machinery due to abrasion or impact and to increase the life of the machine.

Examples of machines or components that might require clad metal plates are:

Crushers
Shredders
Casting Equipment
Steel and Aluminum Mill Equipment
Heavy Earth Moving and Lining Equipment

Other applications for clad metal plate include:

Wear Blades
Choppers
Scrapers
Mining Tools
Chippers
Punch Press Applications
Punch Press Applications
Wear Rings
Wear Segments
Bucket Scrapers

Welding

Cutting

Leveling

Ordering a wear plate from WALDUN

In some cases, we can modify your equipment to incorporate these liner plates when not in the original equipment design. If your equipment has lost some efficiency or does not hold the same tolerances as new, inspect the worn parts. There could be an easy and cost effective fix to the problem.

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