Product Introduction
In the process to manufacture a die cast heatsink, two halves of a die are required in the die casting process. One half is called the “cover die half” and the other is called the “ejector die half”. A parting line is created on the part where the two die halves meet. The die is designed so that the finished casting will slide off the cover half of the die and remain in the ejector half as the die is opened. The ejector half contains ejector pins to push the casting out of the ejector die half. In order to prevent damage to the casting, an ejector pin plate accurately drives all of the pins out of the ejector die at the same time and with the same force. The ejector pin plate also retracts the pins after ejecting the casting to prepare for the next shot.
High Pressure Die Casting is a cost effective option for high volume solutions required to be light weight and superior cosmetic surface quality. Die Cast heat sinks come out in near net shape and require little to no additional assembly and can range in complexity. Die cast heat sinks are popular in the LED market due to the unique shape and weight requirements and high volume production needs.
Die cast heat sink process:
Available heat sink process of Pioneer Thermal:
Main Process | Extrusion | Bonded Fins | Skived Fins | Snapped Fins | Folded Fins | Heat Pipes |
Cold Forging | Die Casting | FSW cold plate | Gun drill cold plate | Vacuum brazing cold plate | Vapor chamber | |
Finishing Processes | CNC machining | Drilling | Tapping | Stamping | Anodizing | Screen printing |
Powder coating | Laser etching | Polishing | Electrophoresis | E-coating | ||
Finishing Value Added | Embedded fans | Thermal Greases | Screws | Springs | Clips | Embedded heat pipes |
Phase change materials | Back plates | Gap filler pads | PEMs | Standoffs | Dielectric pads | |
Compounds |
Pioneer Thermal Quality Assurance:
Inspection tool of Pioneer Thermal:
Heat sink dimension | |||||
CMM | Projector | ||||
Heat sink performance | |||||
Salt Spray Tester | Pressure Tester | Clip Force Tester | Drop Tester | Helium Leakage Tester | |
Heat sink reliability | |||||
Wind Tunnel | On Line Thermal Tester | HP Qmax Tester | HP Delta T Tester | Thermal Shock | High Temperature Aging Chamber |
Pioneer Thermal R&D:
About Pioneer Thermal:
As a heat sink manufacturer in China, Pioneer Thermal is certified with ISO9001, ISO14001 and TS16949, and has a dedicated quality assurance department with full CMM capabilities. We are focused on providing advanced technology, superior customer service and outstanding value to our industry partners.