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When selecting a protective liner for a shot blasting chamber, several key factors should be considered: material, thickness, wear resistance, cost, and maintenance requirements.
Material Selection:
Rubber: Offers good elasticity and sound-absorbing/noise-dampening properties, effectively reducing the noise and vibration of the shot blasting machine; however, it has low wear resistance and requires regular replacement.
Ceramic: Features extremely high hardness and wear resistance, allowing for long-term use; however, the cost is relatively high, and worn ceramic parts require regular inspection and replacement.
Steel plate: Thickness can be adjusted as needed to enhance impact resistance, but the material is relatively rigid and lacks noise-dampening or sound-absorbing qualities.
High-wear-resistant manganese steel plate: This is the most wear-resistant liner material on the market, suitable for high-impact blast zones; however, it is prone to deformation and requires full-seam welding or strip-clamping installation.
Cast chrome liner: Offers high wear resistance but is brittle and prone to breakage; suitable for specific application areas.
Thickness and Shape:
The thickness and shape of the liner must match the internal structure of the main shot blasting chamber to ensure effective protection of internal components against wear.
Cost and Maintenance:
The cost of liners varies significantly depending on the material. High-wear-resistant manganese steel and cast chrome liners are more expensive but offer a longer service life; rubber and standard steel plates are cheaper but require more frequent replacement. In terms of maintenance complexity, while the high-wear-resistance manganese steel plate is durable, it is prone to deformation and requires full-seam welding or strip pressing; conversely, the cast chrome protective plate is brittle and difficult to repair once broken.
