How to improve the hardness of carbon steel hot pressing elbow
2023-07-31
The workpiece is reheated to 100-150 ℃ and kept for 5-20 hours. This kind of treatment for stabilizing the quality of precision parts is called aging. Aging treatment of steel components under low temperature or dynamic load conditions is particularly important to remove residual stress and stabilize the structure and size of hot-pressed elbows. Quenching and tempering treatment: The heat treatment method of high temperature tempering after quenching is called quenching and tempering treatment. High temperature tempering refers to tempering between 500 and 650°C.
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Process Description of Austenitic Stainless Steel Forgings
2023-07-14
Austenitic stainless steel forgings are more difficult to forge than ordinary steel, but there are few surface defects. Most austenitic stainless steel forgings can be forged over a wide temperature range above 927°C. Since austenitic stainless steel forgings have no phase transformation in the high temperature range, the forging temperature is higher than that of martensitic stainless steel, but high chromium or low carbon stainless steel does not have the above properties, because when the temperature is higher than 1093 ℃, high chromium or low carbon stainless steel will produce different contents of ferrite according to the composition, which is harmful to forgeability.
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What improvements should be made in the production process of forgings
2023-07-14
In the forging parts used today, if the temperature control is not good or the carelessness in the production process will cause a series of defects, which will greatly reduce the quality of the forging parts. In order to eliminate this defect in the forging parts, it is necessary to improve the metal parts first. In order to avoid the sensitive working pressure of the steel parts in the whole forging process, it can increase the relative density of the metal material, not only makes it less and less smooth and fine, and make it a high aluminum alloy, in the alloy steel carburizing, body shape broken.
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China's self-developed 170-meter-high wind turbine comes out.
2023-07-14
Recently, a wind turbine with a "jack-up" hybrid tower design was launched in a wind power project in Henan Province of the State Power Investment. The hub of the unit is 170 meters high and can support a 3.6MW wind turbine with a rotor diameter of 155 meters, marking a new high in the height of China's onshore wind turbine!
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