SKD11 Shredder Blades Granulator 499*90*25Mm Plastic Cutting Machine

Description:

Here is an overview of the typical manufacturing process for granulator blades:

1,Blade Blank Preparation:

• The blade blanks are typically cut from flat steel bar stock or plates using methods like sawing, laser cutting, or water jet cutting.
• The blanks are then ground or milled to the desired shape and dimensions.

2,Heat Treatment:

• For high-carbon and alloy steel blades, the blanks undergo a heat treatment process to increase hardness and wear resistance.
• This usually involves heating the blades to high temperatures (around 1000°C) followed by quenching and tempering.
• The heat treatment process is carefully controlled to achieve the optimal balance of hardness and toughness.

3,Grinding and Finishing:

• After heat treatment, the blades undergo precision grinding to create the desired cutting edge geometry, including the bevel angle and edge profile.
• For serrated-edge blades, additional grinding steps are used to create the saw-tooth pattern.
• The blades may also be polished or coated to improve surface finish and reduce friction during operation.

4,Carbide-Tipped Blades:

• For carbide-tipped granulator blades, a tungsten carbide insert is first produced using powder metallurgy techniques.
• The carbide insert is then brazed or welded onto the steel blade body, forming a strong and secure bond.
• This process requires specialized equipment and expertise to ensure proper alignment and adhesion of the carbide tip.

5,Blade Mounting:

• Once the blades are fully processed, they are carefully inspected and prepared for installation on the granulator's rotor assembly.
• This may involve drilling the mounting holes, adding locating features, or applying protective coatings.
• Proper blade mounting and alignment are crucial for ensuring safe and efficient granulator operation.

Granulator Blade Specifications:

The selection of material for granulator blades has the following main impacts on their performance:

1,Hardness and Wear Resistance:

• Hard materials like alloy steel and tungsten carbide can provide higher blade hardness, resulting in better wear resistance and edge retention. This helps extend the blade's service life.
• In comparison, high-carbon steel blades, though lower in cost, have inferior hardness and wear resistance.

2,Impact Resistance:

• High-carbon steel and alloy steel blades have good impact toughness, allowing them to withstand the impact loads encountered during the granulation process without easily fracturing.
• Tungsten carbide blades, despite their extremely high hardness, are relatively brittle and more susceptible to cracking under impact loads.

3,Manufacturing Complexity:

• Tungsten carbide, as an extremely hard material, requires specialized manufacturing techniques such as powder metallurgy and high-temperature welding, making the process more complex and costly.
• In contrast, the manufacturing of high-carbon steel and alloy steel blades is relatively simpler and less expensive.

4,Cost of Ownership:

• Tungsten carbide blades have a longer service life, but the initial cost is higher.
• High-carbon steel blades have a lower cost, but require more frequent replacement and maintenance.
• Alloy steel blades strike a balance, offering improved performance at a moderate cost.

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