What is Wear Resistant Plate
Wear-resistant steel plates, also named abrasion-resistant plates (AR Plates), are used to reduce wear and tear on equipment surface caused by intense rolling abrasion and impact. The strength of these wear-resistant steel plates is enhanced by heat treatment such as quenching and tempering, or by adding some alloying elements, the original characteristics of the steel plates are intensified.Thanks to their excellent hardness and toughness properties, these wear-resistant steel plates can be found in various industries and applications where abrasion, wear, tear and impact requirements are particularly critical.
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Benefits of Wear Resistant Plate
Durability
Abrasion-resistant wear plates are highly durable and can withstand heavy impact and abrasion. They are made of a special type of steel that is much harder and stronger than regular mild steel. This makes them ideal for construction and infrastructure projects where the equipment must constantly be exposed to harsh conditions.
01
Increased lifespan
Using abrasion-resistant wear plates can significantly increase the lifespan of construction and infrastructure equipment. The wear plates protect the underlying structure from damage, corrosion, and erosion. This means the equipment will last longer and require fewer repairs and maintenance.
02
Reduced maintenance costs
As mentioned earlier, using abrasion-resistant steel wear plate can reduce the need for repairs and maintenance. This can save construction companies much money in the long run. In addition, these plates are easy to replace, so any damaged plates can be replaced quickly and easily.
03
Improved safety
When equipment is exposed to heavy impact and abrasion, there is always a risk of accidents. However, the use of abrasion-resistant wear plate can significantly reduce this risk. This is because the plates provide an extra layer of protection, which can prevent accidents and injuries.
04
Better performance
Abrasion resistant steel wear plates can improve the performance of construction and infrastructure equipment. This is because the plates reduce the amount of wear and tear on the equipment, which means that it can operate more efficiently. This can lead to increased productivity and lower operating costs.
05
What are the Applications of Wear Resistant Plate
Mining Industry
The mining industry is one of the primary users of wear resistant steel plates due to the harsh operating conditions faced by mining equipment. Wear resistant steel plates are used in the construction of conveyor systems, crushers, grinding mills, and other mining machinery components that are subjected to constant abrasion and impact. These plates provide excellent resistance to corrosion and can withstand high temperatures and pressures, making them ideal for use in underground mining operations.
Construction Industry
The construction industry relies heavily on wear resistant steel plates for the manufacture of heavy machinery and equipment, such as cranes, bulldozers, and excavators. These plates are used in the construction of structural components, such as chassis, frames, and panels, that are subjected to heavy loads and vibrations. Wear resistant steel plates offer superior strength and durability, ensuring that machinery remains operational for longer periods without requiring frequent repairs or replacements.
Power Generation Industry
Power generation plants rely on wear resistant steel plates for the construction of boilers, turbines, and other critical components that are exposed to high temperatures, pressures, and corrosive environments. These plates provide excellent resistance to thermal stresses and can withstand rapid temperature changes without cracking or warping. Additionally, wear resistant steel plates offer excellent resistance to corrosion caused by steam and other chemicals commonly found in power generation plants.
Automotive Industry
The automotive industry uses wear resistant steel plates in the manufacture of engine blocks, cylinder heads, and other critical components that are subjected to extreme temperatures and pressures. These plates provide excellent heat dissipation properties, ensuring that engine components remain cool even during prolonged operation. Additionally, wear resistant steel plates offer superior strength and durability, reducing the risk of component failure and improving overall vehicle performance.
Material Composition for Wear Plates
Hardened steel wear plates are made from alloy or carbon steel that has been subjected to heat treatment processes for increased hardness and strength. They are basically commonly used in industries such as port, mining, construction, and agriculture. Hardened steel wear plates offer excellent resistance to abrasion and impact, making them suitable for applications involving heavy equipment, rock crushing, material handling, and earthmoving. These wear plates are known for their durability, toughness, and versatility.
Chromium Carbide Overlay wear plates are composite materials consisting of a base metal (typically mild steel) overlaid with a layer of chromium carbide alloy. The overlay provides exceptional wear resistance and hardness, making CCO plates highly suitable for applications exposed to severe abrasion, such as mining, cement, power generation, and steel production. CCO wear plates offer excellent resistance against both sliding and impact abrasion, making them ideal for applications involving high-velocity material flow, wear zones, and areas prone to impact and sliding wear.
Tungsten Carbide wear plates are composed of tungsten carbide particles embedded in a metallic matrix, typically cobalt or nickel. Also, Tungsten Carbide is known for its exceptional hardness and wear resistance, making it suitable for highly abrasive applications. These wear plates are commonly used in industries such as mining, oil and gas, recycling, and woodworking. Tungsten Carbide wear plates excel in applications involving abrasive materials, erosive wear, and high-impact conditions. They are particularly effective in protecting cutting edges, wear parts, and components exposed to extreme wear.
Types of Wear Resistant Plate
Chrome Carbide Overlay Plate
These plates are made by welding chromium carbide on a mild steel base. They offer excellent abrasion resistance and can withstand high levels of wear and tear. These plates are suitable for mining, construction, and power generation equipment applications.
Quenched and Tempered Steel Plate
These plates are quenched and tempered to increase their hardness and strength. They offer excellent impact resistance and are used in applications where high wear and tear are expected.
High Manganese Steel Plate
These plates are made from austenitic manganese steel and offer excellent abrasion resistance. They are used in underground and open-pit mining applications, cement plants, and crushing and screening equipment.
Hardox Plate
This plate type is made from a special type of alloy steel known as Hardox. It offers excellent wear resistance and is used in dump trucks, excavators, and bulldozers.
How to Choose Wear Resistant Plate
Sliding vs. Impact Wear
Sliding wear occurs when two surfaces slide against each other, leading to gradual material loss. Impact wear, on the other hand, involves high-energy impacts and sudden forces that cause rapid damage to the surface. For sliding wear, wear plates with high hardness and good lubricity are recommended, such as chromium carbide overlay (CCO) plates or self-lubricating materials like bronze or polymers. For impact wear, wear plates with high toughness and impact resistance, such as certain grades of hardened steel or composite materials like tungsten carbide overlays, are suitable.
Temperature and Corrosion Resistance
In high-temperature or corrosive environments, wear plates must possess specific properties to withstand such conditions. For high-temperature environments, wear plates with excellent heat resistance, such as heat-treated steels or ceramic composite materials, are suitable. In corrosive environments, wear plates with high corrosion resistance, such as stainless steels, alloyed steels, or composite materials with corrosion-resistant overlays, should be chosen. It is important to consider the specific temperature and chemical exposures in order to select the most appropriate wear plate material.
Weight and Machinability
Weight limitations and ease of machining/installation are crucial considerations, especially for mobile or weight-sensitive applications. Choosing wear plates that offer a balance between wear resistance and weight, such as lightweight composite materials or wear-resistant polymers, can help reduce the overall weight of the equipment. Additionally, selecting wear plates that are machinable and easy to install can simplify maintenance and replacement processes, minimizing downtime and labor costs.
Cost
While considering wear plates, overall cost-effectiveness is important. It involves evaluating the initial cost, the expected lifespan of the wear plate, and the associated maintenance requirements. High-quality wear plates may have a higher upfront cost but can offer significant long-term benefits, such as extended equipment lifespan, reduced downtime, and lower maintenance and replacement costs. Therefore, it is essential to assess the overall cost-effectiveness by considering the specific application requirements, expected wear conditions, and budget constraints.
Wear-Resistant Plates Have Specific Mechanical Properties
Toughness
Toughness is basically the ability of a material in order to absorb energy and resist fracture. Impact-resistant wear plates are engineered to exhibit high toughness, allowing them to absorb the energy generated by an impact and distribute it across the material, preventing cracks or fractures.
Ductility
Ductility refers to a material's ability to undergo plastic deformation without fracturing. Wear plates with good ductility can deform and absorb the energy of an impact without suffering permanent damage, thus preserving their integrity and protective function.
Strength
Strength is the ability of a material to withstand external forces without permanent deformation. Impact-resistant wear plates are characterized by high strength, enabling them to resist the forces generated by high-velocity impacts.
Structural Integrity
Impact-resistant wear plates are engineered to maintain their structural integrity even under severe impact conditions. This means they have sufficient internal cohesion and resistance to prevent cracking or delamination upon impact.
Process of Wear Resistant Plate
2000
Precise Heat Treatment
Heat treatment involves controlled heating and cooling of the wear plate material to alter its microstructure and improve its mechanical properties. Precise heat treatment, including quenching and tempering, ensures the desired hardness, strength, and toughness of the wear plate.
2005
Quenching
Quenching involves rapidly cooling the heated wear plate material to achieve high hardness. This process transforms the material's microstructure, creating a hardened structure that can resist wear and deformation. Proper quenching ensures uniform and thorough cooling to prevent the formation of undesirable cracks or excessive brittleness.
2010
Tempering
Tempering follows quenching and involves reheating the quenched wear plate to a specific temperature and then cooling it gradually. We must note here that tempering reduces the hardness slightly while increasing toughness and ductility. It relieves internal stresses, improves resistance to impact, and enhances the wear plate's overall performance.Precise control of the heat treatment process is essential to achieve the desired hardness and mechanical properties, ensuring the wear plate meets the specific wear challenges it will encounter in the application.
2015
Smooth Surface Finish
A smooth surface finish is crucial for wear plates to prevent material buildup and enhance their performance. A rough or uneven surface can lead to the accumulation of materials such as dirt, debris, or abrasive particles, which can accelerate wear and increase the risk of surface damage.A smooth surface finish helps to reduce friction and the adhesion of particles, improving the wear plate's ability to resist wear. It promotes material shedding and prevents the formation of localized high-stress areas that could lead to premature wear or cracking. Additionally, a smooth surface finish aids in the efficient flow of materials and minimizes the risk of blockages or disruptions in equipment operation.
Which Three Alloy Elements Can Improve The Mechanical Properties Of Wear-Resistant Steel Plates?
Carbon
The increase of carbon content in steel will increase its yield point and tensile strength but reduce its ductility and impact. Meanwhile, too much carbon content could reduce the weldability of the steel, so adjusting the carbon content balance in the wear plate is a very important operation that can't be ignored.
Silicon
Silicon can significantly increase the elastic limit, yield point and tensile strength of steel, but like carbon, the weldability of steel would decrease by adding too much amount of silicon.
Manganese
Manganese is a good deoxidizer, and desulphurization in the steelmaking process, so that the wear plate has greater strength and hardness, also improves the hardenability of steel and the hot processing performance.
Tips to Avoid Cracking during Wear Plate Processing
Pre-Heat the Plate before Cutting
The most common method to avoid cut-edge cracking is pre-heat the steel plate to a certain temperature, and cut it while the material is still warm.
Slow Down Your Cutting Speed during Cutting
The residual stress will be reduced by slowing down the cutting speed. Because while cutting speed is reduced, the material heats up around the cut front, and the heat-affected zone will be wider. But you should remember one thing: slow down the cutting speed is not as reliable as pre-heating.
Post-Heat or Slow Cooling the Plate after Cutting
Post-heating is one of the most effective ways to avoid cut-edge cracking. It should be done immediately after the cutting process is finished, heating up the temperature and remaining for a few hours in a furnace or with torches, but be attention: Do not overheat!Regardless of whether or not you used the method of pre-heating, an appropriate slow cooling rate is an approachable way to reduce the risk of cracking.
What Are The Reasons for Failure of Wear Plates?
Wear loss effect: Wear loss is the main way of failure of all metal surfaces such as wear plates, especially in the strong abrasive wear, wear-resistant steel is gradually worn and eventually fails. The hardness of wear-resistant steel is an important factor affecting its wear.Generally speaking, the hardness of wear-resistant parts is more than 1 times higher than the hardness of the material to obtain better wear resistance, which is the hardness of the working surface of the wear-resistant parts after wear and not the initial hardness before wear. But not the higher the hardness the better, because the higher the hardness the more brittle the wear parts are and the easier to fracture.
Fracture failure: The fracture of the wear plate is often the result of a large impact during its use. If the wear parts are not installed properly, such as the back of the liner is not in contact with the cylinder when it is installed, it is very easy to produce fracture. To improve the impact degree and toughness of the wear parts and reduce their crack expansion speed will be beneficial to anti-fracture. And at present, the surfacing type wear-resistant material has replaced the wear-resistant casting products.
Deformation failure: Deformation failure is the wear plate yield strength is low, so that in the process of use by external force and serious macro plastic deformation occurs, the shape of the casting changes and failure. Failure is mostly seen in the wear-resistant manganese steel parts with low yield strength, such as the ball mill working conditions of large impact, manganese steel liner plate serious anti-bow deformation can pull off the bolt or make the liner plate dislocation and fall off.
Our Factory
Shandong Qishuai Wear-resistant Equipment Co., Ltd. is a manufacturing enterprise integrating R & D, manufacture and installation. It is an experienced manufacturer specializing in providing wear-resistant technical solutions and supporting wear-resistant products.Our factory is located in zibo city and it covers more than 2500 square meters.Include 2 workshops.Alumina ceramic and wear resistant chromium carbide plates.The factory has advanced processing equipment and experienced technical staff.We adhere to the way”the quality is the first” and we has won praise at home and abroad.
FAQ
Wear resistant plates include wear resistant chrome carbide plates,alumina ceramic tiles and wear resistant rubber ceramic liners.These are very popoular in mining,steel plants and cement plants.
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