The guide vanes are used on large sized hydraulic power generators. Possible materials include 20SiMn, Q345C carbon steel, low-alloy steel, as well as stainless steel.
Fixed guide vanes for hydraulic power stations are manufactured with electro-slag remelting casting technology here at SRIF, instead of the traditional production method with steel slabs. Guide vanes of superior quality and higher stiffness can thus be produced with much lower costs, and within a shorter production cycle.
About ESRC (Electro-Slag Remelting Casting)
Advantages of ESRC
1. Progressive solidification and self padding: the density of final products is much higher than that of sand mold castings.
2. Slag refining: the sulfur content and other impurities are reduced and the toughness, fatigue resistance and welding ability is higher than those of sand mold castings.
3. The result of ultrasonic tests proves to meet the requirement of CCH70-3 and the highest level of ASTM A609, 1-2 levels higher than the result of sand mold castings.
4. Cavitation resistance is increased by 30% compared with sand mold castings.
5. Metal mold casting process creates less environmental pollution.
More About Us
Our ESRC production base, covering 3200㎡, is equipped with four ESRC furnaces with the capacity of 700KVA, 2000 KVA, 3000 KVA, and 8000 KVA respectively, by which individual castings of 0.1- 80 tons can be produced and an annual production capacity of 4000 tons can be reached. Over the years, we have supplied more than 10,000 tons of premium ESRC castings to dozens of large and medium hydraulic power stations at home and abroad, including Three Gorges. Our products are exported to USA, Japan, France, Canada, Brazil, Russia, Austria, Vietnam, Turkey, etc.
Production Base
10t AOD Refining Furnace
Main products: turbine blade, crankshaft for diaphragm pump, torsion axis for wind power generation, gear rack for ship lifter, etc.
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