The standard stipulates the composition, design, color, and setting requirements of electric vehicle identification signs. The electric vehicle identification mark consists of the battery abbreviation "EV" (Electricvehicle) and "Electric Vehicle" and other elements. The overall length-to-width ratio of the mark should be 2.5:1.
The standard requires that the identification marks on both sides of the body of the electric bus and electric sanitation vehicle shall be set in a prominent position with no visible line of sight, and shall be set by spraying or pasting. The mark shall not be set at the front of the car, and the window glass or door glass shall be provided on both sides of the car body. Inside and outside, articulated passenger cars are hinged at the shed. Flags should not be mixed with ads.
In addition, the standard also stipulates that signs should be made of safe, environmentally friendly, durable, flame-retardant, corrosion-resistant, and easy-to-maintain materials. The sign should be clear and firm, and should not be deformed, faded, curled or peeled off during use of the vehicle. Any signs of missing, damaged or aged materials should be promptly replaced.
A blended powder of tungsten carbide and Metal Alloy Powder can be used for laser cladding, a process used to deposit a layer of material onto a substrate using a laser beam. This blended powder is typically used as a feedstock material for laser cladding applications where high wear resistance and hardness are required.
Tungsten carbide is a hard and wear-resistant material that is commonly used in cutting tools, mining equipment, and other high-wear applications. It has excellent thermal conductivity and high melting point, making it suitable for laser cladding processes.
Metal alloy powders, on the other hand, are often added to the Tungsten Carbide Powder to enhance certain properties or tailor the characteristics of the final cladding layer. These metal alloys can include nickel, cobalt, chromium, or other elements, depending on the specific requirements of the application.
The blended powder is typically prepared by mixing the tungsten carbide and metal alloy powders in the desired ratio. This mixture is then fed into a laser cladding system, where it is melted using a high-power laser beam. The molten powder is rapidly solidified onto the substrate, forming a dense and wear-resistant cladding layer.
The resulting cladding layer can have excellent hardness, wear resistance, and thermal conductivity, making it suitable for various applications such as tooling, wear parts, and surface protection. The specific properties of the cladding layer can be adjusted by varying the composition and ratio of the tungsten carbide and metal alloy powders in the blend.
Overall, the blended powder of tungsten carbide and metal alloy powder offers a versatile and customizable solution for laser cladding applications, providing enhanced wear resistance, hardness, and other desired properties to the final cladding layer.
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