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Metallurgical test 2 _ 31.01.2023

Melting System Test

Melting System Test specification


Please read these instructions thoroughly. This will make sure you obtain full safe use, Keep this instruction manual in a handy place for future reference.

- Safety precaution

Wear the thermal gloves

Wear the face shield

Keep a safe distance (1m_1.5m)

- Caution

  • Never leave hot graphite crucible with metal liquid cooling in the machine naturally, otherwise it will damage the machine. grab the crucible out immediately when the melting is finished.
  • Anytime when the water circulation is stopped or failure if the crucible is hot and stay in the coil. Ensure it immediately leave from the coil, otherwise the coil will be damage.
  • This melting furnace must use ceramic and graphite crucible together. other kinds and shapes crucible alone, must use both or the coil might be damaged.
  • Turn off the working switch before pouring the liquid metal.
  • After completion of smelting, turn off the operating switch on the melting furnace. Keep the water cycle cooling system running for more than 20 seconds, then turn off the power switch on the melting furnace and water chiller.
  • When use machine with pump (without chiller) for cooling, do not reuse the outlet hot water, need to change new water every time when one crucible melting finishes.

- System Test Cases

  • Test 002: 31012023_ Iron melting


Step Description

Expected Result


System is Off


 Switch on the system

 Turn on the heating switch

 System is On

Heating of the melting pot

 Heating should be in three stages:

- Low heat for three minutes (500 °C),

- Double heat for 5 minutes (1000°C),

- Melting heat for 2 minutes (1600° C)

Melting pot is ready

Put the iron pieces

 The heat must be reduced before putting the pieces and reheated after putting the pieces

 The iron is melting

 Switch off the system

 Turn off the heating switch

System is off  


System is Off



- Operation steps:

  1. Starting: 1: 55 pm
  2. Heating stage 1: 1600 watt for 3 min
  3. Heating stage 2: 3000 watt for 5 min
  4. Heating stage 3: 5000 watt for 2 min
  5. Putting the pieces 500 g of iron within 10 min
  6. Melting iron within 10 min