Metal alloy and steel castings for steel castings in cast welded bogies
A technology of metal alloy and steel castings, applied in bogies, devices for lateral relative movement between the chassis and bogies, railway car body parts, etc., can solve problems such as low elongation
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[0052] The present invention has no special limitation on the preparation method of the metal alloy, and it can be prepared by the metal alloy smelting method well known to those skilled in the art. For example, the oxidation method well known to those skilled in the art can be used for smelting to obtain the above technical solution said metal alloys. In an embodiment of the present invention, the preparation method of the metal alloy may specifically be:
[0053] Mix and melt iron source and lime to obtain molten steel;
[0054] mixing the molten steel with lime and ore, and oxidizing it in an oxygen atmosphere to obtain oxidized molten steel;
[0055] The molten steel oxide is mixed with a manganese source, a silicon source, an aluminum source and a reducing agent for reduction to obtain the metal alloy described in the above technical solution.
[0056] In industrial production, before the iron source and lime are mixed and melted, the present invention preferably repairs ...
Embodiment 1～6
[0077] The iron source, carbon source, silicon source, manganese source, and aluminum source were proportioned according to the component contents shown in Table 5, and the metal alloy was prepared according to the following process.
[0078] (1) Furnace repair: After the steel is tapped from the upper furnace, it is necessary to quickly repair the damaged part of the furnace body to ensure the normal smelting of the next furnace;
[0079] (2) Charging: Load the solid charge (scrap iron and steel and a small amount of lime according to the requirements of smelting steel) into the furnace. The furnace body is opened out, and the material tank is lifted by a crane to add the furnace material into the furnace at one time;
[0080] (3) Melting period: electrify until the charge is completely melted. Its main task is to melt the entire charge quickly and requires the removal of part of the phosphorus. In order to speed up the melting of the charge and save power consumption, oxyg...
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