Heat sink shot blasting machine
The heat sink shot blasting machine is a special surface treatment equipment specifically designed for cleaning the surface of the heat sink of the transformer. It achieves the purposes of cleaning, deburring, strengthening and improving the surface stress state by projecting high-speed shot to impact the surface of the workpiece. The following are the main features and usage advantages of the transformer heat sink shot blasting machine:
I. Main Features
Specialized design
Targeted tray: In view of the complex structure, dense blades and easy deformation of the transformer heat sink, a special tray is designed to ensure that the shot can evenly cover all surfaces (including the blade gaps), avoiding cleaning dead corners.
Ejection Angle: Three-dimensional dynamic simulation design of the ejection head Angle and position to adapt to heat sinks of different sizes and shapes, ensuring efficient cleaning.
High-efficiency cleaning capability
Multi-throw head configuration: Usually equipped with 6 to 8 high-speed throw heads, covering all aspects of the workpiece, and cleaning can be completed in one pass.
Deep removal of oxide scale and dirt: It can thoroughly remove the oxide layer, casting residues, oil stains and welding slag on the surface of the heat sink, improving the surface cleanliness.
Precision control and automation
PLC control system: Automatically controls parameters such as shot blasting time, blasting intensity, and workpiece rotational speed to ensure consistent treatment effects.
Variable frequency speed regulation: The workpiece conveying speed and the throwing head speed are adjustable to meet different process requirements.
Environmental protection and energy-saving design
Closed operation: The equipment operates in a fully enclosed manner to prevent dust from spilling out. It is equipped with an efficient dust removal system (such as a cartridge dust collector), and the emissions meet environmental protection standards.
Shot recycling: Equipped with an internal separator and recovery system, it can automatically screen crushed shots and impurities, recycle usable shot, and reduce consumption costs.
Protective treatment
Anti-deformation design: By controlling the shot blasting intensity and uniformity, the thin-walled structure of the heat sink is prevented from deforming due to impact.
Surface strengthening: Shot blasting can create a compressive stress layer, enhancing the fatigue strength and corrosion resistance of the heat sink.
Ii. Advantages of Use
Improve surface quality and performance
Enhance heat dissipation efficiency: The surface is cleaner after cleaning, and the insulation layer (such as oxide scale) is removed, directly improving the heat conduction performance of the heat sink.
Improve coating adhesion: Provide a uniform and rough surface foundation for subsequent processes such as spraying and anodizing, and enhance the adhesion of the coating.
Efficient production and cost savings
Replacing manual and chemical cleaning: Compared with manual grinding or acid washing, the efficiency of automated shot blasting is several times higher, and it causes no chemical pollution, reducing the cost of wastewater treatment.
Reduce defect rates: Automated processing avoids human errors, ensures uniform cleaning, and reduces rework.
Extend the service life of the workpiece
Eliminate microscopic defects: Remove surface micro-cracks and burrs to reduce stress concentration.
Strengthening the surface: The compressive stress generated by shot blasting can inhibit crack propagation and enhance the durability of the heat sink under vibration or thermal cycling.
Flexibility and adaptability
Multi-material applicability: It can handle heat sinks made of various materials such as aluminum, copper, and steel. By changing the type of shot (such as ceramic shot), excessive impact on soft metals (such as aluminum) can be avoided.
Adapt to complex structures: It can effectively clean hard-to-reach areas such as blade clearances and concave and convex grooves.
Environmental Protection and Safety
No harmful chemicals: Avoid the toxic gases or waste liquids produced by acid washing, making the working environment safer.
Dust control: The built-in dust removal system keeps the workshop clean and meets occupational health standards.
Iii. Typical Application Scenarios
Electronic field: CPU/GPU heat sinks, power supply heat sinks.
Automotive industry: engine radiators, intercoolers, battery cooling fins for new energy vehicles.
Industrial equipment: frequency converters, transformers, and heat dissipation modules for welding equipment.
Aerospace: Surface treatment of high-precision heat dissipation components.
Iv. Precautions
The process parameters need to be optimized: adjust the shot size, ejection speed and time according to the material and structural thickness of the heat sink to avoid excessive shot blasting causing blade damage.
Regular maintenance: Clean the separator and check the wear of the throwing head to ensure the stable operation of the equipment.
Protective measures: The equipment must be grounded and explosion-proof. Operators should wear dust-proof protective gear.
Summary
The heat sink shot blasting machine, through professional design, automatic control and environmental protection treatment, has achieved efficient cleaning and strengthening of precision heat sinks. It has significant advantages in improving product performance, reducing production costs and promoting green manufacturing. For industries that pursue heat dissipation efficiency and reliability, it is a key device in the surface treatment process.
