Alloy melt solidification temperature regulation and control method based on cooling rate

A technology of solidification temperature and cooling rate, which is applied in the field of alloy melt solidification temperature control based on cooling rate, can solve the problems of lack of effective technical methods and lack of understanding of the supercooled solidification temperature of alloy melt, and achieve controllability and The effect of strong repeatability, low cost and high technical reliability

Active Publication Date: 2020-04-10
JIANGSU JICUI ANTAI CHUANGMING ADVANCED ENERGY MATERIALS RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In summary, there is still a lack of understanding of the mechanism of supercooling solidification temperature on the thermal stability of melts in this field. At the same time, although regulating the supercooling solidification temperature of alloy melts plays a very important role in improving the properties of amorphous alloys , but there is still no effective technical method for controlling the supercooled solidification temperature of the alloy melt

Method used

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  • Alloy melt solidification temperature regulation and control method based on cooling rate
  • Alloy melt solidification temperature regulation and control method based on cooling rate
  • Alloy melt solidification temperature regulation and control method based on cooling rate

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Embodiment approach

[0034] combine figure 1 , a preferred embodiment of the method for regulating the solidification temperature of the alloy melt based on the cooling rate proposed by the present invention includes the following specific steps:

[0035] Step 1, establishing the relationship between the solidification temperature of the alloy melt and the temperature of the circulating cooling water in the cooling roll: (1) At a fixed melt casting temperature, the alloy melts are respectively cast to different temperatures of the circulating cooling water (10-35°C) (2) in-situ measurement of the solidification temperature of the amorphous alloy melt on the copper sleeve of the high-speed rotating cooling roll to obtain the solidification temperature of the melt at different cooling water temperatures; ( 3) Establish the correlation between the solidification temperature of the melt and the temperature of the circulating cooling water in the cooling roll;

[0036] Step 2, select the solidificatio...

Embodiment 1

[0040] to adopt Fe 84 P 2 Si 2 B 12 An amorphous solid alloy thin strip is taken as an example (the subscript number in the chemical formula is at%), and the amorphous alloy thin strip is prepared by a high-speed planar flow continuous casting method commonly used in this field. The specific operation steps of the alloy melt solidification temperature regulation and control method based on the cooling rate proposed by the present invention are as follows:

[0041] Step 1, establishing the relationship between the solidification temperature of the alloy melt and the temperature of the circulating cooling water in the cooling roll: (1) at a fixed melt casting temperature of 1300°C, Fe 84 P 2 Si 2 B 12 The alloy melts are respectively cast on the surface of copper sleeves of high-speed rotating cooling rolls with different cooling water temperatures (cooling water temperature is 10-35°C, such as 10°C, 15°C, 20°C, 25°C, 30°C, 35°C), and prepared into Amorphous alloy thin st...

Embodiment 2

[0046] to adopt Fe 84 P 2 Si 2 B 12 An amorphous solid alloy thin strip is taken as an example (the subscript number in the chemical formula is at%), and the amorphous alloy thin strip is prepared by a high-speed planar flow continuous casting method commonly used in this field. The specific operation steps of the alloy melt solidification temperature regulation and control method based on the cooling rate proposed by the present invention are as follows:

[0047] Step 1, establishing the relationship between the solidification temperature of the alloy melt and the temperature of the circulating cooling water in the cooling roll: (1) at a fixed melt casting temperature of 1300°C, Fe 84 P 2 Si 2 B 12 The alloy melts are respectively cast on the surface of the copper sleeve of the cooling roll with different cooling water temperatures (cooling water temperature is 10-35°C, such as 10°C, 15°C, 20°C, 25°C, 30°C, 35°C) to prepare amorphous Alloy thin strip; (2) Use a laser i...

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Abstract

The invention discloses an alloy melt solidification temperature regulation and control method based on a cooling rate. The method sequentially comprises the following steps that 1, a correlation relationship between an alloy melt solidification temperature and a cooling water temperature is established; 2, according to the preparation requirement and based on the correlation relationship established in step 1, the alloy melt solidification temperature is selected and the cooling water temperature is regulated; and 3, an amorphous alloy is prepared under the conditions regulated and controlledin step 2. According to the method, the cooling rate of the alloy melt is regulated and controlled in the high-speed cooling process, and the process method for changing the alloy melt solidificationtemperature opens a new concept and a new scheme for preparing the high-quality amorphous alloys in the field.

Description

technical field [0001] The invention relates to the technical field of preparation of metal functional materials, in particular to a method for regulating the solidification temperature of an alloy melt based on a cooling rate. Background technique [0002] The transformation from alloy melt to amorphous alloy is a process of melt cooling and solidification. The necessary condition for supercooled solidification of alloy melt is that the state of the melt is kept below its corresponding amorphous structure transition temperature Tg. Taking iron-based alloy melts as an example, the amorphous structure transition temperature Tg of iron-based alloy melts is usually about several hundred degrees, while the crystallization and solidification temperature of iron-based alloy melts during natural cooling is about 1,000 degrees. It is much higher than the amorphous structure transition temperature Tg of the iron-based alloy melt, and the temperature at which the alloy melt undergoes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/06B22D11/22C22C45/02
CPCB22D11/0682B22D11/22C22C33/003C22C45/02
Inventor 王岩国周少雄张广强李宗臻董帮少
Owner JIANGSU JICUI ANTAI CHUANGMING ADVANCED ENERGY MATERIALS RES INST CO LTD
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