SEHWA HIGHTECH Magnesium Protection Gas Mixer
“Magnesium protection gas requires a multi-channel mixer used in supplying other protection gases that vary in terms of optimal concentration and flow depending on production process (dissolution, casting & refrigeration).
A shielding gas mixer applied to a die casting process where magnesium melt is injected into a mold in a closed crucible fills only the empty space of the crucible with the protection gas, but a shielding gas mixer for board production needs to keep supplying ambient gas to prevent contact with oxygen even in a closed crucible and a casting process (open process).
Magnesium production process
Important application technologies
|MFC, Static Mixer Application (Patent Registration)
Control of Mixing Ratio (Patent Registration)
MFC Flow Error Correction
Control of Input Range of Mixing Ratio and Alert (Patent Application)
Non-electric emergency operation at a time of blackout (Patent Application)
Multi-channel mixture gas output<
Application of dissimilar gases through the use of conversion coefficient
Properties of magnesium
|Chemical Symbol, Origin
|Originated from Magnesia, a provincial city in Thessaly in the east of Greece where magnesium ore was mined
|It is the world’s 8th commonest element (9th in the universe) that accounts for 2 percent of the weight of the Earth’s crust and exists within 60 kinds of minerals. One liter of seawater contains 1.29g of Mg2+ (12% of Na+).
|Standard atomic weight
||Humphry Davy (1808)
|Status (Room temperature, 1 Atmosphere)
||Silver white solid matter
|Density (20°C, 1 Atmosphere)
|Melting point (1 Atmosphere)
| Boiling point (1 Atmosphere)
||24Mg (78.99%), 25Mg (10.00%), 26Mg (11.01%)
|It is an essential element in many enzymes and chlorophyll and used in manufacturing light-weight alloys applied to automobiles, aircraft, and electronics as well as sacrificial anodes, fireworks and firebombs. Compounds are used as refractories, food additives, laxatives and antacids for various purposes.
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