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In 1957, we succeeded in the development of an innovative casting method called mold centrifugal casting. This success has made it possible for us to offer casting with fewer internal defects and of uniformed quality. In 1973, we introduced a high-frequency induction furnace that prioritized environmental preservation and resource saving, being among the first to establish environmental measures. With this we have improved the quality of the product we offer and have established a highly productive dissolving and casting method. We have established a production system that continuously lowers the environmental load and we will constantly strive to develop new casting methods.
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Bearing parts
1. Material: high strength brass casting
Material Testing Laboratory |
2. Dissolution Method: high-frequency induction furnace
High strength brass contains a large amount of zinc. Oxygen and zinc bond and become zinc oxide, which is not absorbed during molten metal treatment. Due to the high steam pressure of zinc, the absorption of gas, including hydrogen, is difficult, but caution is required because zinc is easily oxidized and evaporative loss will cause a change in composition. Therefore, composition is adjusted by pre-kiln analysis before fusion process. |
Tapping |
3. Casting Method: centrifugal casting method
There are two types of centrifugal casting, horizontal and vertical. Casting is done by pouring molten metal into the casting mold, and centrifugal force is applied without the use of a core cylinder. This method is suitable for the mass production of pipe or ring-shaped cast. |
Micro Observation |