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Technology method for increasing thickness of amorphous alloy strip

A strip thickness, amorphous alloy technology, applied in the field of metal functional materials preparation, can solve the lack of effective technical methods for the thickness of amorphous alloy strips, the lack of improving the ability of alloy melt to form amorphous, and the low saturation magnetic induction of amorphous alloys and other issues to achieve the effect of strong maneuverability and repeatability, simple implementation and low cost

Inactive Publication Date: 2017-01-11
江苏非晶电气有限公司 +2
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  • Application Information

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Problems solved by technology

U.S. Patent No. 5,958,153A discloses a method for adding P to an iron-based amorphous alloy to prepare an amorphous alloy strip with a thickness of 40-90 μm. The composition ratio of this P-containing amorphous alloy strip is (FeSiBC)100 -xPx, wherein the variation range of x is 2~6 at.%, due to the addition of P element in the alloy, the Fe content is reduced, so the main disadvantage of this method is: the saturation magnetic induction of the amorphous alloy is low
[0005] In summary, although increasing the thickness of amorphous alloy strips plays an important role in the application of amorphous strips, there is still a lack of effective technical methods for increasing the thickness of amorphous alloy strips. Crystal Formation Capability Technology Approach

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  • Technology method for increasing thickness of amorphous alloy strip
  • Technology method for increasing thickness of amorphous alloy strip
  • Technology method for increasing thickness of amorphous alloy strip

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Embodiment 1

[0028] Embodiment 1: Taking the Fe79Si13B8 amorphous solid alloy strip as an example, the subscript number in the chemical formula is at%, and the amorphous solid alloy strip is prepared by the high-speed planar flow continuous casting method commonly used in the art owned. The specific operation steps of a kind of process method that utilizes the process method that the present invention proposes to increase the amorphous alloy strip thickness are as follows:

[0029] Step 1: (1) Select the superheating temperature of the Fe79Si13B8 alloy melt to be 1700°C, and the temperature range of the thermal cycle treatment to be 1240-1700°C; (2) Use a high-temperature viscosity measuring instrument (product of GBX Company, model: Viscodrop 2000) to measure the alloy The viscosity of the melt, the heating and cooling speed of the alloy melt are all 10°C / min. In order to ensure the accuracy of the viscosity measurement, each measurement temperature is kept for 1 hour first, and then the ...

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Abstract

The invention relates to a technology method for increasing the thickness of an amorphous alloy strip. The technology method is characterized by specifically comprising the steps that firstly, an incidence relation of overheat circulation treatment and alloy melt viscosity reduction is established; secondly, the overheat circulation treatment temperature capable of reducing the alloy melt viscosity to the maximum degree is selected, and heat treatment is conducted; and thirdly, the temperature of the alloy melt obtained after overheat treatment is reduced to the set casting temperature, and the amorphous solid alloy thin strip is obtained through rapid solidification. According to the technology method, under the situation that the alloy components and the rapid solidification technology conditions are not changed, the thickness of the amorphous alloy strip is increased through the technology method for reducing the alloy melt viscosity through overheat treatment, and the preparing difficulty for the amorphous alloy thick strip is lowered. The technology method has the beneficial effects that the implementation cost is low, efficiency is high, operability and repeatability are high, and the technology reliability is high, and the technology method is suitable for being widely applied to the technical field of metal functional material preparing.

Description

technical field [0001] The invention belongs to the technical field of metal functional material preparation, and in particular relates to a process method for increasing the thickness of an amorphous alloy strip. Background technique [0002] Alloy melt viscosity is an important physical quantity that characterizes the physical properties of alloy melt, directly reflects the transportation of atoms and atomic clusters in the melt, and is the basic parameter of the fluid governing equation. Temperature is the main factor affecting the viscosity of alloy melt. The general law of alloy melt viscosity changing with temperature is that the temperature rises and the viscosity decreases; the temperature decreases and the viscosity increases. Since the viscosity of the alloy melt is inversely proportional to the temperature, the drop of the melt temperature during the solidification of the alloy melt causes the viscosity of the alloy melt to increase, causing the melt to lose fluid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/06B22D11/18
CPCB22D11/0611B22D11/18
Inventor 王岩国
Owner 江苏非晶电气有限公司
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