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Oxidation-resisting wear-resisting alloy steel for temperature sensor and preparation method thereof

A temperature sensor and anti-wear technology, which is applied in the field of alloy steel materials, can solve the problems that the anti-oxidation and anti-wear performance of alloy steel cannot be satisfied, the heat cannot be dissipated in time, and the resistance rises.

Inactive Publication Date: 2017-05-31
ANHUI RUIXIN AUTOMATION INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Under the working current, the generated heat and the dissipated heat reach a balance and the current can pass through normally. When the excessive current passes through, the component generates a large amount of heat and cannot be dissipated in time, resulting in a rapid rise in resistance, which limits the passage of large current, thereby causing to over-current protection, but as society progresses, emerging electrical equipment requires more sensitive temperature control and regulation
[0004] Most of the thermistor materials used in temperature sensors are alloy steels. The anti-oxidation and anti-wear properties of alloy steels in the prior art cannot meet the needs of actual use. Therefore, it is urgent to design an anti-oxidation and anti-wear temperature sensor. Alloy steel to solve the problems in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The alloy steel for an anti-oxidation and anti-wear temperature sensor proposed by the invention has the following weight percentages of each component: C: 0.15%, Si: 0.55%, Mn: 1.3%, Cr: 21.2%, P: 0.03%, S: 0.03%, V: 0.085%, Nb: 0.0375%, Al: 0.02%, Ti: 0.02%, Mo: 0.3%, Bi: 0.2%, Y: 0.4%, Ni: 14.5%, Rare Earth: 0.05%, The rest is Fe and inevitable impurities.

Embodiment 2

[0023] A preparation method of alloy steel for anti-oxidation and anti-wear temperature sensor of the present invention comprises the following steps:

[0024] S1. Smelting iron ingots, carbon powders, silicon powders, manganese ingots, chromium ingots, phosphorus powders, sulfur powders, vanadium ingots, niobium ingots, aluminum ingots, titanium powders, molybdenum ingots, bismuth ingots, yttrium ingots and nickel powders, The smelting temperature is 1350°C to obtain an alloy liquid, and then rare earth is added for modification treatment, and the temperature of the modification treatment is 1250°C;

[0025] S2. Carry out refining, desulfurization and deoxidation in the alloy liquid that has undergone the modification treatment in S1, and test. The alloy liquid includes the following components by weight: C: 0.1%, Si: 0.55%, Mn: 1.6%, Cr: 18.2%, P: 0.04%, S: 0.04%, V: 0.15%, Nb: 0.015%, Al: 0.03%, Ti: 0.01%, Mo: 0.4%, Bi: 0.1%, Y: 0.6%, Ni: 14%, Rare earth: 0.08%, the rest i...

Embodiment 3

[0028] A preparation method of alloy steel for anti-oxidation and anti-wear temperature sensor of the present invention comprises the following steps:

[0029] S1. Smelting iron ingots, carbon powders, silicon powders, manganese ingots, chromium ingots, phosphorus powders, sulfur powders, vanadium ingots, niobium ingots, aluminum ingots, titanium powders, molybdenum ingots, bismuth ingots, yttrium ingots and nickel powders, The smelting temperature is 1450°C to obtain an alloy liquid, and then rare earth is added for modification treatment, and the temperature of the modification treatment is 1150°C;

[0030] S2. Carry out refining, desulfurization and deoxidation in the alloy liquid that has undergone the modification treatment in S1, and test. The alloy liquid includes the following components by weight: C: 0.2%, Si: 0.45%, Mn: 1.6%, Cr: 18.2%, P: 0.03%, S: 0.03%, V: 0.15%, Nb: 0.015%, Al: 0.03%, Ti: 0.01%, Mo: 0.4%, Bi: 0.1%, Y: 0.6%, Ni: 14%, Rare earth: 0.08%, the rest i...

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Abstract

The invention discloses an oxidation-resisting wear-resisting alloy steel for a temperature sensor. The oxidation-resisting wear-resisting alloy steel for the temperature sensor comprises, by weight, 0.1%-0.2% of C; not larger than 0.55% of Si, 1.0%-1.6% of Mn, 18.2%-24.2% of Cr, not larger than 0.04% of P, not larger than 0.04% of S, 0.02%-0.15% of V, 0.015%-0.06% of Nb, 0.01%-0.03% of Al, 0.01%-0.03% of Ti, 0.2%-0.4% of Mo, 0.1%-0.3% of Bi, 0.2%-0.6% of Y, 14%-15% of Ni, 0.02%-0.08% of rare earth and the balance Fe and inevitable impurities. The invention further discloses a preparation method of the oxidation-resisting wear-resisting alloy steel for the temperature sensor. According to the oxidation-resisting wear-resisting alloy steel for the temperature sensor and the preparation method of the oxidation-resisting wear-resisting alloy steel for the temperature sensor, through reasonable selection of components, the prepared alloy steel for the temperature sensor has excellent oxidation resistance and wear resistance.

Description

technical field [0001] The invention relates to the field of alloy steel materials, in particular to an alloy steel for an anti-oxidation and anti-wear temperature sensor and a preparation method thereof. Background technique [0002] During the use of temperature sensors, the thermistor plays an important role, and the thermistor is a temperature-sensitive semiconductor resistor. Once the temperature exceeds a certain temperature, its resistance value increases almost as the temperature increases. It is a step-like increase, which can protect the circuit when the current surge is too large and the temperature is too high. [0003] Under the working current, the heat generated and the heat dissipated reach a balance and the current can pass normally. When the excessive current passes through, a large amount of heat generated by the component cannot be dissipated in time, resulting in a rapid rise in resistance, limiting the passage of large current, thus starting To overcur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/04C22C38/02C22C38/58C22C38/06C22C38/46C22C38/48C22C38/50C22C38/44
CPCC22C38/04C22C38/002C22C38/005C22C38/02C22C38/06C22C38/44C22C38/46C22C38/48C22C38/50C22C38/58
Inventor 高凤谊
Owner ANHUI RUIXIN AUTOMATION INSTR
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