| 摘要 |
PURPOSE: A molten-metal injecting device for casting different kinds of brake discs is provided to prevent shaking in a brake operation due to non-constant injection of FC molten metal by appropriately arranging the interface position between FC molten metal and FCD molten metal secondarily injected. CONSTITUTION: A molten-metal injecting device(100) for casting different kinds of brake discs comprises a molten-metal injecting housing(110), a measuring chamber(130), and a double stopper(120). Molten metal is stored in the molten-metal injecting housing. A discharge port(112) is formed on the bottom of the molten-metal injecting housing to discharge molten metal for casting a frictional plate. The measuring chamber is mounted on the lower part of the molten-metal injecting housing to be communicated with the discharge port. Molten metal flows into and is temporarily stored in the buffer of the measuring chamber.
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