제주장학재단

Features

Utilize the vacuum suction force to draw melt into the cold copper casting mold at the bottom and from a 6mm Dia. rod metal alloy (upto 30g)

Designed for melting samples < 10 g up to 3000 °C under tiny positive pressure or low vacuum

Water-cooled SS vacuum chamber, electrode, and copper crucible allows arc melting of multiple samples without cross-contamination

Powerful arc melting power supply enables reliable, stable arc ignition

Easy electrode tilting and height adjustment via a handwheel

A built-in mechanical manipulator for tilting and rotating samples without breaking the vacuum

A tinted observation window on the front for monitoring melting process                       
     

Vacuum Suction Casting & Copper Crucible 
  

Vaccuum suction casting 6mm dia. rod, 30g max.

The sucking force is generated by evacuating the bottom cold copper casting mold. This results in a fast movement and cause the rapid solidification of the melt which is ideal for reducing the shrinkage cavity defects 

One solenoid valve is built in for sucking operation

The water-cooled copper crucible has 7 cavities:

Central cavity (35mm dia. x 10mm depth) is for vacuum suction casting

The other six surrounded cavities (25 mm Dia. × 8 mm depth) are reserved for metal alloy pellet preparation, max. 10g

Vacuum Pressure 

Gauge

A mechanical vacuum pressure gauge is installed for monitoring the chamber pressure.

The anti-corrosive capacitance diaphragm gauge is optional with additional cost.  

Chamber imensions

Φ182 mm × 225 mm

Power Supply  

Input voltage: 110 or 220 VAC selectable, single phase

Input current: 34A max. (One 40A breaker is installed in the power supply. Recommended wall breaker amp ≥ 40A)

Output DC output: 15 V / 125 A at 35% duty cycle - 110 V input

18 V / 185 A at 35% duty cycle - 220 V input

Minimum DC current output: 5 A

Pulse DC and AC output modes available

Foot pedal control of the output current

Tungsten Electrode

4 mm Dia. tungsten electrode with water cooling, Non-consumable tungsten arc stinger

Easy electrode tilting and height adjustment (30 mm max) for multiple-cavity melting

Capable of melting samples < 10 g up to 3000 °C, which can melt all types of metals

Pic.A is a 4.5 g tungsten melt drop 

Pic.B is a 10 g tungsten melt drop

                         A.4.5 g                    B.10 g 

Vacuum Chamber

Water cooled vacuum chamber with dimensions of Φ 182 mm × 225 mm H

A Φ120mm front door for easy sample loading and retrieving

A tinted observation window on the front for monitoring melting process

A built-in mechanical manipulator for tilting and rotating samples without breaking the vacuum

Furnace Dimensions 

540 mm W × 540 mm D × 920 mm H (exclude the power supply) 

Power supply dimension: 320 mm L x 185 mm W x 485 mm H

Water Chiller & Gas (Optional)
    

Water cooling is required (not included) for the chamber, copper mold, and electrode. Please consider our recirculating water chiller.r.

High purity inert gas with at least 5N purity (>99.999%) is required (not included)

5% Hydrogen + 95% Argon gas may be used to prevent oxidation during melting process

Net Weight

50 kg

Compliance

CE certified

UL/CSA certification by NRTLs is available at an extra fee. Please contact us for the quote.

Warranty

One-year limited warranty with lifetime support

Application & Warning Notes

High purity Ar gas is required for the melting operation. Gas purification module is recommended to ensure gas purity. A two-stage pressure regulator must be installed on the gas cylinder to limit the pressure to below 3 psi for safe operation. 

To avoid any damages to the mechanical pump or turbo pump, please install an Inline Particle Trap(maximum 1E-4 Torr vacuum with turbo pump) on the pump inlet port

Must Wear Welder Glass or Auto Welding Shade while observing the Arc while welding. 

An example of the system setup with turbomolecular pump can be on the left

The unit is designed for arc melting operation under tiny positive pressure or low vacuum (0.01 – 0.11 MPa pressure, or positive 0.01 MPa to negative 0.09 MPa pressure). Never operate the unit at high vacuum or high positive pressure!

During arc melting operation, never allow the electrode to touch the material or the copper crucible! Do not operate the mechanical manipulator during the melting process.

Option: The user may use a quartz tube shielding to effectively reduce the splash and spilling while arc melting.