The drum type shot blasting machine is suitable for workpieces
The drum shot blasting machine (drum shot blasting cleaning machine) is a commonly used surface cleaning equipment, which mainly cleans, strengthens or smooths the surface of workpieces by high-speed shot blasting. It is particularly suitable for cleaning small-sized, non-deformable and rollable batch workpieces. The following are typical types of workpieces suitable for cleaning with a drum shot blasting machine:
I. Characteristics of workpieces Suitable for the drum type shot blasting machine (drum shot blasting cleaning machine)
Smaller size: The size of the workpiece usually does not exceed the capacity limit of the machine drum (generally within several tens of centimeters in length, width and height), which is convenient for rolling inside the drum.
Not afraid of collision: The material of the workpiece should have certain strength and toughness, be able to withstand mutual collision and shot blasting impact, and not be easy to break or deform.
Simple structure: No deep holes, narrow slits or complex inner cavities (otherwise the projectile would be difficult to clean thoroughly).
Batch processing: Suitable for batch processing of medium and small-sized parts, with high efficiency and uniform cleaning.
Ii. Typical applicable workpiece types of drum shot blasting machines (drum shot blasting cleaning machines)
Foundry industry: Small castings (such as valve housings, pipe fittings, hardware parts, automotive castings, etc.), forgings, and heat-treated blanks.
Metal processing: bolts, nuts, washers, chains, tools (hammers, wrenches), stamping parts, standard parts, etc.
Heat treatment industry: Removing oxide scale from parts after quenching and carburizing, such as gear blanks, shaft parts, etc.
Automobile parts: small suspension components, connecting rods, piston rings, brake pad blanks, etc.
Construction machinery: small structural components, pins, springs, etc.
Wear-resistant parts: small liners, wear-resistant balls, agricultural machinery tools, etc.
Iii. Situations where the drum type shot blasting machine (drum shot blasting cleaning machine) is not suitable or needs to be used with caution
Precision or thin-walled parts: such as thin-walled aluminum alloy parts and precision threaded parts, are prone to deformation or damage.
Workpieces with deep holes or complex inner cavities: The shot is difficult to enter dead corners, and the cleaning effect is poor.
For workpieces with high surface requirements: If it is necessary to maintain the original smoothness or avoid collision scratches (such as polished parts), it is not advisable to use it.
Easily entangled parts: such as springs and slender rods (which may tangle into balls), require special fixtures or use other equipment (such as hook-type shot blasting machines).
Iv. Advantages of Drum Shot Blasting Machines
High degree of automation: After loading, it automatically completes cleaning and discharging, saving labor.
Uniform cleaning: The rotation of the drum causes the workpiece to constantly flip, ensuring that all surfaces come into uniform contact with the shot.
High efficiency: Suitable for continuous operation of large quantities of small parts.
Versatility: Besides removing oxide scale and rust layers, it can also be used for surface strengthening, deburring, and finishing, etc.
V. Precautions for Drum Shot Blasting Machine (Drum Shot Blasting Cleaning Machine
Loading volume control: The volume of the workpiece generally does not exceed 70% to 80% of the drum's capacity to ensure full tumbling.
Shot selection: According to the material of the workpiece (steel, cast iron, non-ferrous metals, etc.) and the cleaning requirements, select the appropriate material (steel shot, stainless steel shot, ceramic shot, etc.) and particle size of shot.
Process adjustment: Optimize the effect by adjusting parameters such as the drum speed, shot blasting time, and ejection Angle.
Summary
The drum shot blasting machine (drum shot blasting cleaning machine) is an ideal choice for surface cleaning of small metal castings and forgings, standard parts and batch parts that are not afraid of collision. It is especially suitable for removing oxide scale, rust, burrs and surface strengthening. For precision, complex or fragile workpieces, it is recommended to choose other types of shot blasting equipment (such as hook-type shot blasting machines, belt-type shot blasting machines, through-type shot blasting machines, etc.). In practical applications, it is necessary to select the appropriate type based on the characteristics of the workpiece and the process requirements.