CN102899577B - Stainless steel alloy resistive material - Google Patents
Stainless steel alloy resistive material Download PDFInfo
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- CN102899577B CN102899577B CN201210154634.3A CN201210154634A CN102899577B CN 102899577 B CN102899577 B CN 102899577B CN 201210154634 A CN201210154634 A CN 201210154634A CN 102899577 B CN102899577 B CN 102899577B
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- stainless steel
- steel alloy
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Abstract
The invention discloses a stainless steel alloy resistive material. The stainless steel alloy resistive material comprises: by mass, 0 to 0.05% of C, 0 to 0.025% of P, 0 to 0.020% of S, 0 to 0.05% of Mn, 0 to 0.05% of Si, 17.0 to 19.0% of Cr, 0.20 to 0.60% of Ni, 1.5 to 2.2% of Al, 0 to 0.50% of Ti and the balance Fe. The stainless steel alloy resistive material is used for a neutral grounding resistor of an electric distribution system, can guarantee high strength, good toughness, good oxidation resistance and a stable resistance value, and has high electrical resistivity and a low resistance temperature coefficient.
Description
Technical field
The present invention relates to electric power network system field, relate in particular to a kind of Stainless Steel Alloy resistive material for power distribution system neutral point grounding resistor.
Background technology
Resistor is the maximum element of number of applications in electronic circuit, conventionally presses power and resistance and forms different series, selects for circuit designers.Resistor is mainly used to adjusting and steady current and voltage in circuit, can be used as splitter and voltage-divider, also can do Circuit Matching load.
The mode of power distribution system neutral point grounding resistor ground connection is adopted widely in countries such as America and Europe, East Asia and South Asia.Taking cable line as main city power distribution system, power generation system, as the distribution network system of the large-and-medium size cities such as Beijing, Tianjin, the Yangtze River Delta, area, Pearl River Delta, generally adopt neutral point grounding resistor earthing mode in China.The Stainless Steel Alloy of the heterogeneity composition that its resistive material of existing neutral point grounding resistor adopts conventionally, all have advantages of that intensity is high, good toughness, good in oxidation resistance and resistance stable, the effect that the Stainless Steel Alloy resistive material of heterogeneity presents in the work operational process of whole neutral point grounding resistor is different.And now the resistive material of its neutral point grounding resistor is proposed to higher requirement, in, good toughness high in proof strength, good in oxidation resistance and resistance are stable, resistivity is high and temperature coefficient of resistance is low seems particularly important, the in the situation that of variation of ambient temperature, better steady current and voltage, and existing Stainless Steel Alloy resistive material can not meet such requirement.
Summary of the invention
The technical problem to be solved in the present invention is for the defect existing in prior art, and a kind of resistivity height and the low Stainless Steel Alloy resistive material of temperature coefficient of resistance are provided.
In order to overcome the defect existing in background technology, the technical solution adopted for the present invention to solve the technical problems is: a kind of Stainless Steel Alloy resistive material, comprises that chemical composition meets C 0～0.05%, P 0～0.025%, S 0～0.020%, Mn 0～0.05%, Si 0～0.05%, Cr 17.0%～19.0%, Ni 0.20%～0.60%, Al 1.5%～2.2%, Ti 0～0.50%, surplus is that Fe(is mass percent).
In a preferred embodiment of the present invention, the content of described Al is 1.7%～1.8%.
In a preferred embodiment of the present invention, the forge hot of described Stainless Steel Alloy resistive material becomes plate construction, and surface is through sandblasting.
The invention solves the defect existing in background technology, use optimal components proportioning, especially in the situation that the content of aluminium is 1.7%～1.8%, the structure stability having had under heat-treat condition and after deepfreeze, improve the resistivity of Stainless Steel Alloy resistive material and reduced temperature coefficient of resistance, better steady current and voltage.
Embodiment
A kind of Stainless Steel Alloy resistive material for power distribution system neutral point grounding resistor of introducing in the present embodiment, comprise that chemical composition meets C 0～0.05%, P 0～0.025%, S 0～0.020%, Mn 0～0.05%, Si 0～0.05%, Cr 17.0%～19.0%, Ni 0.20%～0.60%, Al 1.5%～2.2%, Ti 0～0.50%, surplus is that Fe(is mass percent), wherein the optimum content of Al is 1.7%～1.8%.The forge hot of Stainless Steel Alloy resistive material becomes plate construction, and the length of side is 240 mm, and thickness is the square sheet material of 3.5 mm, and measuring resistance rate ρ≤0.8 μ Ω m, through sandblasting, is examined in surface.
Embodiment 1, the component prescription according to design: C 0.01%, P 0.02%, S 0.01%, Mn 0.03%, Si 0.02%, Cr 17%, Ni 0.3%, Al 1.5%, Ti 0.20%, surplus is that Fe(is mass percent).Through melting, oil quenching and air cooling, making the length of side is 240 mm, and thickness is the square sheet material of 3.5 mm, and detecting electricalresistivityρ is 0.81 μ Ω m.
Embodiment 2, the component prescription according to design: C 0.03%, P 0.02%, S 0.02%, Mn 0.02%, Si 0.03%, Cr 19%, Ni 0.5%, Al 1.8%, Ti 0.30%, surplus is that Fe(is mass percent).Through melting, oil quenching and air cooling, making the length of side is 240 mm, and thickness is the square sheet material of 3.5 mm, and detecting electricalresistivityρ is 0.83 μ Ω m.
Embodiment 3, the component prescription according to design: C 0.03%, P 0.02%, S 0.01%, Mn 0.04%, Si 0.05%, Cr 19%, Ni 0.5%, Al 1.7%, Ti 0.50%, surplus is that Fe(is mass percent).Through melting, oil quenching and air cooling, making the length of side is 240 mm, and thickness is the square sheet material of 3.5 mm, and detecting electricalresistivityρ is 0.085 μ Ω m.
Embodiment 4, the component prescription according to design: C 0.04%, P 0.01%, S 0.02%, Mn 0.04%, Si 0.03%, Cr 17%, Ni 0.6%, Al 1.7%, Ti 0.20%, surplus is that Fe(is mass percent).Through melting, oil quenching and air cooling, making the length of side is 240 mm, and thickness is the square sheet material of 3.5 mm, and detecting electricalresistivityρ is 1.02 μ Ω m.
Embodiment 5, the component prescription according to design: C 0.05%, P 0.02%, S 0.02%, Mn 0.03%, Si 0.04%, Cr 17%, Ni 0.5%, Al 1.8%, Ti 0.30%, surplus is that Fe(is mass percent).Through melting, oil quenching and air cooling, making the length of side is 240 mm, and thickness is the square sheet material of 3.5 mm, and detecting electricalresistivityρ is 1.00 μ Ω m.
Stainless Steel Alloy resistive material of the present invention is after thermal treatment and deepfreeze, there is good structure stability and good mechanical property, in, good toughness high in proof strength, good in oxidation resistance and resistance are stable, improve the resistivity of Stainless Steel Alloy resistive material and reduced temperature coefficient of resistance, being applied in power distribution system neutral point grounding resistor better steady current and voltage.
Taking above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this invention technological thought, carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification sheets, must determine its technical scope according to claim scope.
Claims (2)
1. a Stainless Steel Alloy resistive material, it is characterized in that: the chemical composition that comprises mass percent meets C 0～0.05% P 0～0.025%, S 0～0.020%, Mn 0～0.05%, Si 0～0.05%, Cr 17.0%～19.0%, Ni 0.20%～0.60%, Al 1.5%～2.2%, Ti 0～0.50%, surplus is Fe
In above-mentioned, the forge hot of described Stainless Steel Alloy resistive material becomes plate construction, through melting, oil quenching and air cooling, making the length of side is 240 mm, thickness is the square sheet material of 3.5 mm, and surface, through sandblasting, carries out examining measuring resistance rate ρ≤0.8 μ Ω m after deepfreeze and thermal treatment.
2. Stainless Steel Alloy resistive material according to claim 1, is characterized in that: the content of described Al mass percent is 1.7%～1.8%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210154634.3A CN102899577B (en) | 2011-07-25 | 2012-05-18 | Stainless steel alloy resistive material |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110208004.5 | 2011-07-25 | ||
| CN201110208004 | 2011-07-25 | ||
| CN201210154634.3A CN102899577B (en) | 2011-07-25 | 2012-05-18 | Stainless steel alloy resistive material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102899577A CN102899577A (en) | 2013-01-30 |
| CN102899577B true CN102899577B (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210154634.3A Expired - Fee Related CN102899577B (en) | 2011-07-25 | 2012-05-18 | Stainless steel alloy resistive material |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108075459B (en) * | 2016-11-14 | 2019-09-06 | 国家电网公司 | Neutral point high resistant damping resistor |
| CN113800250B (en) * | 2021-09-22 | 2023-01-17 | 深圳市顺海科技有限公司 | Low-resistance high-power alloy resistor and intelligent production line thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4834808A (en) * | 1987-09-08 | 1989-05-30 | Allegheny Ludlum Corporation | Producing a weldable, ferritic stainless steel strip |
| CN1271027A (en) * | 1999-04-19 | 2000-10-25 | 住友金属工业株式会社 | Stainless steel material for solid polymer fuel battery |
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2012
- 2012-05-18 CN CN201210154634.3A patent/CN102899577B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4834808A (en) * | 1987-09-08 | 1989-05-30 | Allegheny Ludlum Corporation | Producing a weldable, ferritic stainless steel strip |
| CN1271027A (en) * | 1999-04-19 | 2000-10-25 | 住友金属工业株式会社 | Stainless steel material for solid polymer fuel battery |
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| CN102899577A (en) | 2013-01-30 |
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Address after: High tech Zone Suzhou city Jiangsu province 215129 Yinzhu Road No. 8 Applicant after: SUZHOU LONG YUAN ELECTRICITY TECHNOLOGY Co.,Ltd. Address before: High tech Zone Suzhou city Jiangsu province 215129 Yinzhu Road No. 8 Applicant before: Suzhou Longyuan Electric Power Engineering Co.,Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: SUZHOU LONGYUAN POWER ENGINEERING CO., LTD. TO: SUZHOU LONGYUAN ELECTRICITY TECHNOLOGY CO., LTD. |
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Granted publication date: 20141210 |