TheoperatingprocessofSuctionCastmachine.doc

1、The operating process of Arc-melting and Suction Casting device1. Start the device:Turn on the Cooling Water Tanker Power turn on the Knob of Cooling Water Tanker Turn on the Main Power of Control Panel turn on the Lighting Power Turn on the Mechanical Pump turn on the Backing Valve turn on the Diff

2、user Pump（Warm up the device for 40 minutes.）Turn on the Deflation Valve open the Melting Room prepare for the experiment (Put in the Mould, Ti-Ball, Copper-pot and Sample.) close the Melting Room2. Pumping Low Vacuum (twice):（Ensure the Deflation Valve and Needle Valve are closed.）Open the Argon Cy

3、linder (around 0.1MPa)Turn on the Backing Valve turn on the Pre-pumping Valve of Melting Room turn on the Corner Valve of Melting Room turn on the Vacuum Gauge（Wait for the degree of vacuum below 10pa .）Turn off the Vacuum Gauge turn off the Corner Valve of Melting Room turn off the Pre-pumping Valv

4、e of Melting Room turn the Backing Valve open the Needle ValveCharge the Argon to -0.04 close the Needle Valve3. Pumping high vacuum（Wait for the finish of charge Argon of third time.）Turn on the Rapid Suction Cast Valve turn off the Backing Valve turn on the Pre-pumping Valve of Melting Room turn o

5、n the Corner Valve of Melting Room turn on the Vacuum Gauge（Wait for the degree of vacuum below 10pa. ）Turn off the Rapid Suction Cast Valve turn off the Corner Valve of Melting Room turn off the Pre-pumping Valve of Melting Room turn on the Backing Valve（Confirm the Deflation Valve and Needle Valve

6、 are closed.）Open the Butterfly Valve of Melting Room（Wait for the degree of vacuum below 510 -3Pa.）Open the Butterfly Valve of Melting Room turn off the Vacuum Gauge Charge the Argon to -0.04 close the Needle Valve4. Suction Cast1) Smelting the Titanium-Ball:Put the Electrode behind the Arc Startin

7、g Pillar turn on the Button of Arc move the Electrode to excite Arc（Change electricity to control the temperature of the Arc, move the Electrode to control the direction of the Arc. The Arc can not contact the mould and the manipulator.）2) Smelting the metal：（When you smelting the metal first time，t

8、he electricity the smaller, the better.）You must smelt the metal together first, reversal and smelt it again and again, smelting it about 5-6 times.3) Suction Cast：（the electricity should be slightly larger）Put the Alloy-Ball on the Copper Mould，open the Arc and smelt it, turn on the Suction Cast Bu

9、tton 10-15s latter.5. Get the casting out and close-down the machine1. Cooling the alloy about 5 minutes, turn on the Deflation Valve, open the Smelting Room, take out of the mould.2. Close the Argon Cylinder close the Smelting Room Pump Low Vacuum once.3. Turn off the Vacuum Gauge turn on the Lighting Power turn on the Diffuser Pump Continue run the machine for one hour.4. Turn off the Backing Valve Turn off the Machine Pump turn off the Button of Cooling Water turn off the Main Power