SP-MSM-300 Arc Melting System with Electromagnetic Stirring and Vacuum Casting
Its core component is a water-cooled stainless steel vacuum chamber capable of achieving practical vacuums down to 5×10-6 torr, with an ultimate vacuum reaching 7×10-7 torr. The chamber includes tinted observation windows and a hinged front door for operational convenience. A built-in wobble stick allows sample flipping without breaking vacuum, enhancing process efficiency.
Key Features
- 630 A arc melting power supply with high-frequency arc ignition, enabling contactless sample melting.
- Water-cooled copper hearths with multiple cavities for simultaneous melting or vacuum casting, including electromagnetic stirring options.
- Interchangeable hearth designs to accommodate different sample sizes and casting requirements.
- Water-cooled ceriated tungsten electrodes (Ø12 mm) for stable arc generation.
- Optional vacuum system with a 700 L/s turbopump and rotary vane backing pump for enhanced vacuum performance.
- Optional recirculating water chiller with precise temperature control to maintain cooling efficiency.
- Capability to use high-purity inert gases or hydrogen-argon mixtures to prevent oxidation during melting.
Technical Specifications
| Parameter | Specification |
|---|---|
| Power Supply Input | 480 VAC, 3-phase, 27 kW, 50/60 Hz (Optional 400 VAC, 3-phase) |
| Arc Melting Power Supply | IGBT inverter, up to 25 kW, 0-34 V DC, 20-630 A DC, 630 A @ 60% duty cycle |
| Vacuum Chamber Material | Water-cooled stainless steel |
| Vacuum Level | Ultimate: 7×10-7 torr; Practical: 5×10-6 torr |
| Leak Rate | <3.75×10-4 torr·l/s |
| Chamber Dimensions | 280×350×440 mm |
| Copper Hearth Cavities (Electromagnetic Stirring) | Ø80×25 mm (stirring), plus three Ø35×17.5 mm cavities |
| Vacuum Casting Hearth Cavities | Ø40×20 mm (two cavities), Ø60×20 mm (stirring), Ø50×10 mm for casting rods up to Ø8×75 mm |
| Electrode Type | Water-cooled ceriated tungsten, Ø12 mm |
| Pressure Gauge | Inficon PCG554 Pirani Capacitance Diaphragm Gauge |
| Optional Vacuum System | 700 L/s turbopump with ISO160K gate valve, 240 L/min rotary vane backing pump |
| Optional Water Chiller | KJ 5300 recirculating chiller, 16 L/min flow, 6K BTU/hr cooling, 5-30ºC control |
Typical Applications
Ideal for research and development of advanced steel alloys, the SP-MSM-300 supports uniform melting and casting under controlled atmospheres. It is suitable for producing homogeneous alloy samples, vacuum casting rods, and exploring electromagnetic stirring effects on melt dynamics.
Configuration & Operating Notes
The system includes interchangeable copper hearths for either electromagnetic stirring or vacuum casting; users must specify the preferred hearth type when ordering. The wobble stick enables sample manipulation without venting the chamber, preserving vacuum integrity. High-purity inert gases or hydrogen-argon mixtures are recommended to minimize oxidation during melting. Optional vacuum and cooling systems enhance performance but are not included as standard. Proper installation of a two-stage pressure regulator on gas cylinders is required for safe operation.
