CN1033059C - Anti-corrosion agent for solid long-term-effective dropping resistance - Google Patents
Anti-corrosion agent for solid long-term-effective dropping resistance Download PDFInfo
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- CN1033059C CN1033059C CN 90107273 CN90107273A CN1033059C CN 1033059 C CN1033059 C CN 1033059C CN 90107273 CN90107273 CN 90107273 CN 90107273 A CN90107273 A CN 90107273A CN 1033059 C CN1033059 C CN 1033059C
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- oxide
- resistance
- lowering
- preservative
- sodium
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The present invention relates to a resistance-lowering preservative with a long-term effect, which is black-grey granular powder composed of silicon oxide, titanium oxide, aluminum oxide, iron oxide, ferrous oxide, calcium oxide, magnesium oxide, potassium oxide, sodium oxide, sodium sulfate, sodium chloride, sodium hydroxide, trisodium phosphate and carbon element. The power-frequency resistivity of the resistance-lowering preservative is only 0.2 ohm. M, the shock resistivity of the resistance-lowering preservative is 0.2 ohm. M, and the resistance-lowering preservative also has the good characteristic that the resistivity is lowered when the current density is increased. The resistance-lowering preservative has the stable resistivity characteristic, wherein the resistance-lowering rate can reach 50 to 85%, the lowering rate of contact voltage is about 85%, and the resistance-lowering preservative has a function of corrosion prevention for a metal grounding body. The resistance-lowering preservative has the advantages of no toxicity, no taste, no environment pollution, low cost and convenient use.
Description
The present invention relates to Resistance of Grounding Grids, the reduction of ground surface contact potential, step voltage and the anticorrosion of earth electrode.Be mainly used in the system of electric power, railway, post and telecommunications, radar and other employing ground network.
Reducing earth resistance, make the electrical system earthing device under any circumstance all can reach specification requirement, is that people wish the problem that solves for a long time.Aspect solution reduction earth resistance, adopted the way that enlarges the ground network area to realize in the past; Along with science and technology development, chemical resistance-reducing agent had had bigger development afterwards.As: Japan, JP8114467; The U.S., US4001145; China's application number, 881058823 grades are chemical grounded resistance reducing agent.But above these resistance reducing agents have many deficiencies in some aspects.As: shock-resistant voltage, current capacity is poor, poisonous, cost is high, uses inconvenience, poor durability or the like.
It is good to the objective of the invention is to invent a kind of resistance-reducing performance, good endurance, and cost is low, on-the-spot long-term-effective dropping resistance anticorrisive agent easy to use.
The long-term-effective dropping resistance anticorrisive agent is a kind of grey black coloured particles sprills, and is tasteless, nontoxic, environmentally safe, and resistance reducing effect is remarkable.Under repeatedly power frequency, heavy impulse current effect, electrical resistivity property is stable, and the metal earth electrode is played the anti-corrosion protection effect.The present invention, the long-term-effective dropping resistance anticorrisive agent is made up of following composition: silicon dioxide, titanium oxide, aluminium powder, brown iron oxide, ferrous oxide powder, calcium oxide, manganese oxide, potassium oxide, sodium oxide molybdena, sodium sulphate, chlorate, NaOH, phosphoric acid hydrochlorate and carbon.Wherein, the percentage by weight of each composition is as shown in table 1.The effect of each composition is respectively: silica has extremely strong suction, water holding capacity, is mainly used in to store electrolyte and moisture content; Titanium oxide can also keep the stability of resistance reducing agent except that possessing electric action; Aluminium oxide, sodium oxide molybdena, potassium oxide, magnesium oxide are active metal oxide,
Table 1
| Composition | Silica | Titanium oxide | Aluminium oxide | Iron oxide | Ferrous oxide |
| Content (%) | 20～60 | ?0.5～4 | ?10～20 | ?2～5 | ?0.1～3 |
| Composition | Calcium oxide | Magnesium oxide | Potassium oxide | Sodium oxide molybdena | Sodium sulphate |
| Content (%) | 1～6 | ?3～10 | ?0.1～3 | ?0.5～5 | ?3～10 |
| Composition | Sodium chloride | NaOH | Sodium phosphate | Carbon | |
| Content (%) | 2～10 | ?0.15～3 | ?0.15～4 | ?3～15 |
The preparation of resistance-reducing anti-corrosion agent: at first, take by weighing each composition, then each composition is pulverized, fully mix, mix well and get final product in the described ratio of table 1.
Resistance-reducing anti-corrosion agent has and do to apply and add two kinds of usings method of water.
Do the method for applying: resistance-reducing anti-corrosion agent dry powder shape proportion is 1～1.2 kilogram/cubic decimeter, and the dried proportion of resistance reducing agent and every meter consumption calculate horizontal laying and vertical run tunnel size, gets final product around the earth electrode that then dry powder is laid in.
Water feeding method: a bigger container is prepared in the job site, resistance reducing agent is poured into, and be equipped with 60% water, stirs in container and trembles evenly, around the earth electrode that then resistance reducing agent is laid in.
Resistance-reducing anti-corrosion agent of the present invention is compared with similar products at home and abroad, and the industrial frequency electric resistance rate has only 0.2 Europe. rice; The impulse resistance rate is 0.2 Europe. rice; And also have with current density and increase the advantageous feature that reduces, in power frequency and 5 repeatedly
KA, 10
KA, 20
KA, 40
KAUnder the heavy impulse current effect, electrical resistivity property is stable; Its resistance-reducing yield can reach 50～85%, and touch voltage reduction rate is about 85%; Can play the anti-corrosion protection effect to the metal earth electrode, corrosion rate can be reduced to 0.05739 millimeter/year, and tasteless, nontoxic; Environmentally safe, cost is low, and is easy to use.
The prescription of example of the present invention can be as shown in table 2.Take by weighing each composition by prescription, pulverize, fully mix and get final product.Wherein carbon is through 2500 ℃ of high-temperature process.The resistance reducing agent for preparing, visual job site is convenient, selects for use and does the method for applying or water feeding method.
Table 2
| Composition | Silica | Titanium oxide | Aluminium oxide | Iron oxide | Ferrous oxide |
| Content (%) | 40.5 | 3 | 10 | 2.5 | 0.2 |
| Composition | Calcium oxide | Magnesium oxide | Potassium oxide | Sodium oxide molybdena | Sodium sulphate |
| Content (%) | 3 | 3 | 5 | 5 | 8 |
| Composition | Sodium chloride | NaOH | Sodium phosphate | Carbon | |
| Content (%) | 2.6 | 1 | 1.2 | 15 |
Claims (1)
1. anti-corrosion agent for solid long-term-effective dropping resistance, it is characterized in that: contain silica, titanium oxide, aluminium oxide, iron oxide, ferrous oxide, calcium oxide, magnesium oxide, potassium oxide, sodium oxide molybdena in the resistance-reducing anti-corrosion agent, sodium sulphate, sodium chloride, NaOH, sodium phosphate and carbon; Its concrete weight percent content is:
Silica: 20～60%, titanium oxide: 0.5～4%, aluminium oxide: 10～20%
Iron oxide: 2～5%, ferrous oxide: 0.1～3%, calcium oxide: 1～6%
Magnesium oxide: 3～10%, potassium oxide: 0.1～3%, sodium oxide molybdena: 0.5～5%
Sodium sulphate: 3～10%, sodium chloride: 2～10%, NaOH: 0.15～3%
Sodium phosphate: 0.15～4%, carbon: 3～15%,
Wherein the carbon in this resistance-reducing anti-corrosion agent is through 2500 ℃ of high-temperature process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90107273 CN1033059C (en) | 1990-08-24 | 1990-08-24 | Anti-corrosion agent for solid long-term-effective dropping resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90107273 CN1033059C (en) | 1990-08-24 | 1990-08-24 | Anti-corrosion agent for solid long-term-effective dropping resistance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1059162A CN1059162A (en) | 1992-03-04 |
| CN1033059C true CN1033059C (en) | 1996-10-16 |
Family
ID=4880470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90107273 Expired - Fee Related CN1033059C (en) | 1990-08-24 | 1990-08-24 | Anti-corrosion agent for solid long-term-effective dropping resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1033059C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062888C (en) * | 1995-09-02 | 2001-03-07 | 龚循礼 | Long service life, corrosion-proof, and electric resistance reducing agent for earthing |
| CN102354542B (en) * | 2011-06-28 | 2013-04-24 | 成都桑莱特科技股份有限公司 | Resistance-reducing agent with self-produced pressure |
| CN104356293B (en) * | 2014-10-24 | 2016-11-30 | 广西电网公司电力科学研究院 | A kind of grounding resistance-reducing agent prescription for mountain area rock and blasting construction method |
| CN107382124B (en) * | 2017-09-15 | 2020-07-10 | 四川坤正新型材料有限公司 | Autoclaved aerated concrete plate steel bar antirust agent and preparation method thereof |
| CN112447310B (en) * | 2020-11-13 | 2022-06-14 | 广东电网有限责任公司 | Resistance reducing agent and preparation method and application thereof |
-
1990
- 1990-08-24 CN CN 90107273 patent/CN1033059C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1059162A (en) | 1992-03-04 |
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