High-temperature fan corrosion-resistant alloy and preparation method thereof

A corrosion-resistant alloy and fan technology, applied in the field of corrosion-resistant alloys for high-temperature fans and its preparation, can solve the problems of poor high-temperature resistance and short service life of high-temperature fans, and achieve strong oxidation resistance, extended service life, and high-temperature good strength effect

Inactive Publication Date: 2021-03-09
江苏新核合金科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

With the continuous increase of industrial electric furnaces and the continuous increase of heat treatment process temperature, higher requirements are put forward for the performance of high-temperature corrosion-resistant alloy materials for high-temperature fans, and the performance of

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  • High-temperature fan corrosion-resistant alloy and preparation method thereof

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Example Embodiment

[0031]According to the other side of the present invention, there is also provided a method for preparing the above-described high temperature fan-described corrosion resistance alloy, please seefigure 1,figure 1A flow chart of a method for producing an resistor alloy for a high-temperature fan for the present invention, the preparation method of the high temperature fan-resistant alloy includes the following steps:

[0032]Step S1: Raw materials Preparation: According to the design component, the raw materials are fully formulated, and all raw materials are polished surface, bake after baking; where nickel needs to be baked for more than 4 hours at 780 ° C for more than 4 hours, raw chrome needs After 400 ° C for more than 2 hours, the raw material silicon must be baked for more than 4 hours at 700 ° C; the ingredient process needs to strictly control the distribution range of each element, ensuring that the content control of the vulnerable element during the remellation of the elute...

Example Embodiment

[0040]Example 1:

[0041]In the corrosion resist alloy of the first embodiment of the present invention, the weight percentage of each element is: C: 0.08%, Si: 0.50%, Mn: 0.45%, P: 0.008%, S: 0.006%, CR: 21.5%, Al: 1.10%, Fe: 1.80%, CO: 11.6%, Ti: 0.45%, margin is Ni and inevitable impurities.

[0042]The preparation method of the alloy is as follows:

[0043]Step S1: Raw materials Preparation: According to the design component, the raw materials are fully formulated, and all raw materials are polished surface, bake after baking; where nickel needs to be baked for more than 4 hours at 780 ° C for more than 4 hours, raw chrome needs Baked for more than 2 hours at 400 ° C, and the raw material silicon must be baked for more than 4 hours at 700 ° C.

[0044]Step S2: Vacuum smelting: Raw material installation furnace, iron block and nickel block to add the bottom of the vacuum smelting furnace, mating the bottom carbon, the raw material cobalt and the raw material chrome is placed in the middle up...

Example Embodiment

[0049]Example 2:

[0050]In the corrosion resist alloy of each element, each element is: 0.07%, Si: 0.55%, Mn: 0.65%, P: 0.009%, S: 0.007%, Cr: 0.007%, CR: 22.5%, Al: 1.25%, Fe: 1.50%, CO: 12.3%, Ti: 0.50%, margin is Ni and inevitable impurities.

[0051]The preparation method of the alloy is as follows:

[0052]Step S1: Raw materials Preparation: According to the design component, the raw materials are fully formulated, and all raw materials are polished surface, bake after baking; where nickel needs to be baked for more than 4 hours at 780 ° C for more than 4 hours, raw chrome needs Baked for more than 2 hours at 400 ° C, the raw material silicon must be baked for more than 4 hours at 700 ° C;

[0053]Step S2: Vacuum smelting: Raw material installation furnace, iron block and nickel block to add the bottom of the vacuum smelting furnace, mating the bottom carbon, the raw material cobalt and the raw material chrome is placed in the middle upper portion of the crucible, and the uppermost is ove...

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Abstract

The invention provides a high-temperature fan corrosion-resistant alloy. The alloy comprises the following elements, in percentage by weight, of 0.05% to 0.10% of C, less than or equal to 0.70% of Si,less than or equal to 0.70% of Mn, less than or equal to 0.012% of P, less than or equal to 0.008% of S, 20.0% to 23.0% of Cr, 0.60% to 1.50% of Al, less than or equal to 2.0% of Fe, 10.0% to 13.0% of Co, 0.20% to 0.60% of Ti and the balance Ni and inevitable impurities. A preparation method of the high-temperature fan corrosion-resistant alloy comprises the steps of raw material preparation, vacuum smelting, electroslag remelting, forging, plate rolling and heat treatment. According to the alloy and the method, components and a process of the alloy are optimally designed, the alloy has the advantages of being good in high-temperature strength, high in high-temperature corrosion resistance and high in oxidation resistance, and the service life of a high-temperature fan can be prolonged.

Description

technical field [0001] The invention relates to the field of high-temperature corrosion-resistant alloy materials, in particular to a corrosion-resistant alloy for high-temperature fans used in industries such as high-temperature annealing furnaces and graphene, and a preparation method thereof. Background technique [0002] In heat treatment equipment such as high-temperature annealing furnaces in metallurgy and chemical industries, high-temperature axial flow fans and high-temperature centrifugal fans are common equipment used for ventilation or enhanced heat dissipation. The fan in the high-temperature annealing furnace is in a high-temperature environment for a long time, and its fan shaft and impeller need to have high temperature resistance and corrosion resistance. Because nickel-based alloys have high high-temperature mechanical properties, excellent oxidation resistance and corrosion resistance, etc., high-temperature fans are generally made of nickel-based alloys. ...

Claims

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Application Information

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IPC IPC(8): C22C19/05C22C1/03C22B9/04C22B9/18C22F1/10
CPCC22B9/04C22B9/18C22C1/023C22C1/03C22C19/058C22F1/10
Inventor 刘威陈杰戴雪琴武冬平邵兴明
Owner 江苏新核合金科技有限公司
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