MSM20-7 (non consumable) mini metal melting furnace

Product Name

MSM20-7 Compact Vacuum Arc Melting System with 7 Cavities

Features

1. Designed for melting samples < 10g iron-based alloy up to 3000 °C under tiny positive pressure or low vacuum

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

3. Powerful arc melting power supply enables reliable, stable arc ignition

4. Easy electrode tilting and height adjustment via a handwheel

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

6. A tinted observation window on the front for monitoring melting process

   Chamber Door       Front Window      Flashlight Insert        Manipulator

Vacuum Pressure Gauge

Mechanical vacuum pressure gauge.

Power Supply

1. Input voltage: 110 or 220 VAC selectable, single phase

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

3. 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

4. Minimum DC current output: 24 A

5. Pulse DC output modes available

6. Manual knob control of the output current

Tungsten Electrode

1. 6 mm Dia. tungsten electrode with water cooling

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

3. Capable of melting samples < 10 g iron-based alloy in each cavity up to 3000 °C, which can melt all types of metals

4. Pic.A is a 4.5 g tungsten melt drop and Pic.B is a 10 g tungsten melt drop

A.4.5 g                     B.10 g

Copper Crucible

1. Water-cooled copper crucible plate with 7 cavities of 25 mm Dia. × 8 mm depth (Pic 1)

2. The customizable copper crucible is available upon request at extra cost (Pic 2 ).

3. Max. melting amount in 70 mm single cavity crucible is about 100g （Fe based）（Pic. 3）   

             Pic 1                   Pic. 2                 Pic. 3             

Vacuum Chamber

1. Water cooled vacuum chamber with dimensions of Φ 200 mm × 350 mm H

2. A Φ120mm front door for easy sample loading and retrieving

3. A tinted observation window on the front for monitoring the melting process

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

Vacuum Pump

The vacuum level is dependent on the vacuum pump used:

1. 10^-3 torr via a mechanical/roughing pump. (Roughing Pumps Optional ) 

2. 10^-5 torr via a double-stage rotary vacuum pump VRD-16(Include ).

Water Chiller & Gas (Optional)

1. Water cooling is required ( included) for the chamber, copper mold, and electrode.

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

3. 5% Hydrogen + 95% Argon gas may be used to prevent oxidation during the melting process

Furnace Dimensions 

470 mm W × 315 mm D × 880 mm H (exclude the power supply) 

Chamber Dimensions

     Φ200 mm ×350 mm

Net Weight

50 kg

Compliance

CE certified

Warranty

One-year limited warranty with lifetime support

Application & Warning Notes

1. 5N purity Ar gas is required for arc melting. Gas purification module is recommended to ensure gas purity.

2. A two-stage pressure regulator must be installed on the gas cylinder to limit the pressure to below 3 psi for safe operation.

3. 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

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

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

6. 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!

7. During the 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.

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