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Time: 2024-10-18 11:52:20
Author: Shanghai Benxi Welding Research Intelligent Techno
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Introduction of plasma cladding blade
Plasma cladding blades use plasma arc technology to strengthen the surface of the blades, making them more wear-resistant, impact-resistant and corrosion-resistant. Such blades are widely used in agricultural machinery, metallurgy, mining, woodworking, papermaking, plastic recycling and other fields. By cladding hard materials on key parts of the blades, their service life is greatly extended.
1. Working principle of blade surfacing
Plasma cladding uses a high-temperature plasma arc to melt and deposit specific cemented carbide powder or welding wire on the surface of the blade to form a high-performance coating. This process not only enhances the wear resistance of the blade, but also prevents corrosion and mechanical damage.
Shielding gas: Inflection gas is used to protect the welding area to avoid oxidation.
Material pipeline: Powder alloy is sprayed evenly to ensure the density of the deposited layer.
Molten layer cooling: After cladding is completed, it is cooled naturally or forcedly to ensure bonding with the bottom of the substrate.
2. Commonly used surfacing materials and characteristics
Cobalt-based alloy: high temperature oxidation resistance, strong wear resistance, suitable for high temperature environment.
Nickel-based alloy: has outstanding corrosion resistance and is suitable for use in acidic or low-temperature environments.
Tungsten carbide material: ultra-high wear resistance, suitable for high-intensity fatigue conditions.
Iron-based alloy: high micron, often used for general wear resistance needs.
3. Typical applications of surfacing blades
Agricultural machinery: rotary tiller blades, lawn mower blades, modified crusher blades, etc.
Mining equipment: crusher blades, shovel teeth, drill bits and other high-wear parts.
Woodworking and papermaking industries: planers, saw blades, paper cutters, etc., to improve durability and cutting quality.
Plastics and recycling equipment: shredder blades for high-frequency shearing operations.
4. Advantages of surfacing blades
Short duration: significantly reduces blade wear and replacement frequency.
Cost reduction: Avoid purchasing new blades, improve economy.
High stability: ensure long-term stable cutting performance and reduce constant time.
Process customization: Different alloy materials and coating thicknesses can be selected according to specific working conditions.
5. Technical difficulties and solutions for blade surfacing
Deformation control: Prevent blade deformation by accurately controlling welding parameters and cooling speed.
Bonding strength: Strict surface shaping and accurate temperature control ensure the bonding between the cladding layer and the substrate.
Uniform coating: Intelligent plasma control system is used to ensure consistent thickness of the deposited layer.
6. The prospect of plasma surfacing blades
As various industries have higher requirements for equipment durability, the demand for plasma cladding blades continues to grow. In the future, this technology will be deeply integrated with automation and intelligent control to achieve higher-precision cladding processes to meet the needs of complex working conditions.
Plasma cladding blades have become an important tool for vehicles in the industrial field, bringing customers more efficient and economical solutions.