Manufacturing method of corrosion-resistant cast nickel-based high-temperature alloy
A nickel-based superalloy and a manufacturing method technology, applied in the field of nickel-based alloy manufacturing, can solve the problems of poor stirring effect of nickel-based alloys, poor high temperature and corrosion resistance, affecting the quality of nickel-based alloy products, etc., and achieve good stirring effect. , improve performance, ensure clean effect
Active Publication Date: 2019-04-16
宁国市华成金研科技有限公司
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Problems solved by technology
[0003] During the use of the existing nickel-based alloys, the resistance to high temperature and corrosion is poor. At the same time, in the process of preparing the nickel-based alloys, the existing stirring equipment has a poor stirring effect on the nickel-based alloys, which affects the nickel-based alloys. Base alloy product quality
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[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0030] see Figure 1-4 As shown, a method for manufacturing a corrosion-resistant cast nickel-based superalloy, including raw material melting - alloy addition - preparation of nickel-based superalloy ingots - hot forging deformation - quenching and cooling manufacturing steps, the specific steps are as follows:
[0031] (1) Raw material melting: configure the raw material according to the composition requirements of the corrosion-resistant cast nickel-based superalloy, place the ...
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The invention discloses a manufacturing method of a corrosion-resistant cast nickel-based high-temperature alloy. The method comprises the steps of raw material melting, alloy adding, nickel-based high-temperature alloy ingot preparation, hot forging deformation and quenching cooling preparation. According to the method, in the preparation process of the nickel-based alloy, raw materials are firstly molten according to the proportion, a certain amount of Ni-Fe alloy is added into the alloy raw material in the molten state, a stirring device is used for fully mixing the Ni-Fe alloy and the alloy raw material in the molten state, so that the corrosion resistance of the nickel-based alloy is improved, and then quenching cooling is carried out, so that the high-temperature-resistant performance of the nickel-based alloy is improved; and the molten alloy is stirred by introducing gas and stirring, the stirring effect is better, meanwhile, a branch air pipe penetrating hole is in transitionfit with a branch air outlet pipe, so that in the upward moving process of the branch air outlet pipe, the molten alloy attached to the outer wall of the branch air outlet pipe is scraped off, and thetidiness of the outer wall of the branch air outlet pipe is guaranteed.
Description
technical field [0001] The invention relates to the technical field of nickel-based alloy manufacturing, in particular to a method for manufacturing a corrosion-resistant cast nickel-based superalloy. Background technique [0002] Nickel-based superalloys refer to high-temperature alloys that use nickel as the matrix and have high strength and good oxidation resistance and gas corrosion resistance in the range of 650-1000 °C. The main alloying elements of corrosion-resistant alloys are iron, chromium and molybdenum. It has good overall performance and is resistant to various acid corrosion and stress corrosion. Most nickel-based corrosion-resistant alloys have an austenitic structure. In the state of solid solution and aging treatment, intermetallic phases and metal carbonitrides exist on the austenite matrix and grain boundaries of the alloy. [0003] During the use of the existing nickel-based alloys, the resistance to high temperature and corrosion is poor. At the same...
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IPC IPC(8): C22C1/03C22C19/05C22F1/00C22F1/10
CPCC22C1/023C22C1/03C22C19/058C22F1/002C22F1/10
Inventor 程国华
Owner 宁国市华成金研科技有限公司