CN1036623C - Physical solid grounded resistance reducing agent - Google Patents
Physical solid grounded resistance reducing agent Download PDFInfo
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- CN1036623C CN1036623C CN94107890A CN94107890A CN1036623C CN 1036623 C CN1036623 C CN 1036623C CN 94107890 A CN94107890 A CN 94107890A CN 94107890 A CN94107890 A CN 94107890A CN 1036623 C CN1036623 C CN 1036623C
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- Prior art keywords
- reducing agent
- resistance
- resistance reducing
- cement
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- Curing Cements, Concrete, And Artificial Stone (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
The present invention relates to a physical solid-grounding resistance reducing agent which is mainly composed of carbon base alloy and cement, and replaces a chemical resistance reducing agent. The present invention can be produced at normal temperature and pressure, has the advantages of low resistivity, good stability, long effect and no toxin, corrosion or pollution, and is especially suitable for the grounding of the various requirements of drought areas, arctic-alpine areas, high-temperature areas and areas with acute corrosion. The present invention also has the advantages of cheap price, little consumption, etc.
Description
What the present invention relates to is resistance reducing agent, especially relates to a kind of physical solid grounded resistance reducing agent.
For a long time, people are being that various unremitting efforts are being carried out in the lightning protection of desired safety ground of Architectural Equipment and electric equipment always.As far back as the fifties, what people adopted high resistance soil ground connection is a large amount of metallic conduction material or carbon-point etc., or reduces earth resistance by enlarging physical dimension, and such earthing method not only expends a large amount of metals, and the floor space operating expenses is all big.To the sixties, people generally use slag, waste residue (carbide slag, lime, charcoal yellow mud ...) in add 5% salt as resistance-lowering material, these fall the resistance measure owing to do not have the gelling thing to electrolytical delay effect, seasonal variations year in and year out, salt electrolysis liquid run off and to corrosion of metal cause can not be long-acting basic place.People are watching the research of chemical resistance-reducing agent attentively since the seventies, make every effort to solidify the back and form the loss that network configuration stops electrolyte with different gelling things, so international and domestic chemical resistance-reducing agent that has occurred various patterns according to national this area resource, their something in commons are that the electrolyte intermediate ion is a conductive bodies, representative example is as the urine aldehyde type and the acid/acrylic amide type of domestic normal employing; The disclosed durability grounded resistance reducing agent of JP56014467, the gelling thing that it adopts is: Ca
3SiO
5, Ca
2SiO
4And Al
2(SO
4)
3CN1030666A discloses a kind of inorganic-chemical solid reducer of ground resistance, and the gelling thing that it adopts is: aluminosilicate cement.Analyzing the restriction that electrolyte is subjected to the gelling thing theoretically reduces to run off, to early stage resistance reducing effect make moderate progress, though the organic gel after solidifying is rich in plasticity and inorganic gel restriction ability is strong, but the curing agent of liquid needs to add at the construction field (site), factors such as its consumption, curing time, curing temperature are wayward, and complex operation is difficult for being grasped by general personnel, and Organic Ingredients is not only poisonous and price is high, terrestrial life also can be degraded simultaneously, thereby is difficult to common popularization.In the eighties, China is watching the research of solid inorganic chemical resistance-reducing agent especially attentively, promptly with the representative of CN1030666A, it attempts to adopt some metal free electron materials of adding to improve the adverse effect of electrolyte loss, however the SO in metal and oxide powder thereof and the electrolyte
--, Cl
-Be in together in the system chemical reaction will take place, the effect that can not keep its ortho states for a long time, value from material, this is the unsuitable industrial implementation of inferior use, though also added graphite therein, amount does not constitute conductive bodies less, and it is very little to remedy strong electrolyte loss electric action, its reason is to separate out when the dry liquid film dehydration saline crystallization that falls in the resistance layer between carbon granule, and the high resistance anhydrous salt is being isolated the carbon granule performance and do not come from electric action by electronics.
From above-mentioned analysis as seen, the research of grounded resistance reducing agent, production up to now, its common ground all is to be the chemical resistance-reducing agent that conductive bodies obtains with strong electrolyte, when water was arranged, electrolyte helped the initial stage to the soil horizon infiltration and falls resistance, but its active anion SO
--, Cl
-Corrosion is inevitable to metal electrode, especially it is even more serious that the direct current positive pole is gone into ground, fall that to exist concentration of electrolyte between resistance layer and soil poor, change soil fluctuation in stage electrolyte loss when season, its infiltration is irreversible, so, restrict electrolyte with the gelling thing and do not run off, think its ground connection fall the resistance long-acting, durable, not corrode metal electrode be impossible, also is unable to undergo the check of putting into practice.
Purpose of the present invention is exactly at problems of the prior art, utilize cement, the plain stable general character of charcoal, and bring into play its unique effect and used as stable electric conductor, thereby provide the physical solid grounded resistance reducing agent of the low good stability of a kind of resistivity, in order to the substituted chemistry resistance reducing agent, eradicated electrolytical negative interaction.
In order to reach purpose of the present invention, physical solid grounded resistance reducing agent of the present invention composed as follows: below (by weight percentage) granularity requirements 200 orders.
1) C-base alloy (containing the natural mineral products that meet index request and the major-minor product of various graphite products) 12.4～61;
2) acetylene black 0.06～5.2;
3) natrium nitrosum 0.50～3.3;
4) calcium nitrite 0.03～5.0;
5) calcium oxide 0.40～5.91;
6) lignosulphonates 0.03～2.6;
7) alkylsulfonate 0.06～2.0;
8) crystal carbon (containing coke, graphite, electric powdered carbon) 3.4～44.8;
9) cement 〉=425# 27～60 (Portland cement).
Wherein C-base alloy is to connect the low electrical resistant material that the electron channel between random synusia is made in the liquid crystal cavity of flake graphite and the edge embedding conducting particles of sheet.Made C-base alloy had both had the electric conductivity that is similar to metal, and the characteristic of graphite is arranged again.
Owing to adopted this physical solid grounded resistance reducing agent, thereby replaced existing packing, use cumbersomely, forceful electric power is separated the chemical resistance-reducing agent of seriously corroded, not only has practical significance in theory, and also having solved the user can not future trouble steady in a long-term to ground connection.
Principle of the present invention is exactly to use cement, the plain stable general character of charcoal, it is constituted electric conductor, though cement resistivity is 10
2～10
4Ω m, but it is a strong base-weak acid salt, PH＞7 have strong affinity and anti-corrosive properties to metal and non-metal solid surface during aquation, the cured strength height, and corrosion reaction does not take place to conducting objects in physics, chemically stable mutually.Though and a little less than the plain hydrophily of charcoal, to be that resistivity is low be generally 10 to its outstanding characteristic
-2～10
-4Ω m, good stability energy anti-high and low-temp and corrosion are as electric conducting material.Calcium type additive can promote the hydrophily and the dispersiveness of charcoal element.When the charcoal element is formed the coagulation low resistance structure of certain intensity after cement cementitious, be applicable to that as the solid resistance reducing agent of conductive bodies resistance falls in the ground connection of arid, high and cold, high temperature, highly corrosive environments.The present invention can produce at normal temperatures and pressures, superiority such as valency is held concurrently, consumption is few that it has.
Below in conjunction with the bright specifically the present invention of embodiment.
Various embodiments of the present invention in table 1, have been listed, after putting into mixer after in preparation process, earlier C-base alloy, acetylene black, lignosulphonates, alkylsulfonate, crystal carbon being taken by weighing by weight percentage and stirring 30 minutes, each that save expected to drop into to stir 30 minutes again, be less than the packing of weighing behind 200 orders, doing test block measuring resistance value qualified by batch sampling is finished product.
In table 2, listed the resistance measurement result under the weight ratio situation of different cement and C-base alloy; from table 2, can see by numeral; heat release when sizing mixing that cement adds water; molecule is very active; directed the moving of the electronics of C-base alloy there is inhibition; but along with the increase of amount, its obstruction power slackens gradually, and shows the C-base alloy characteristic that resistance reduces with the temperature rising.The desired effect of this physical solid resistance reducing agent of the present invention just, corresponding the reducing of the many resistances of thunderstorm in summer, improved lightning-arrest effect, resistance keeps stable in the process of colding and heat succeed each other, water logging (not losing ion), arid, water freeze, and change in resistance all in 0.5 Ω m scope, can be found out again, as long as this resistance reducing agent is poured into around the electrode, shoulder immediately to the diffusing effect of letting out electric current of the earth after making it and electrode and the stratum closely contacting.
Form and to be clear that from resistance reducing agent of the present invention, acetylene black and crystal carbon have synergistic effect as electric conducting material for the electric conductivity of C-base alloy, in addition, C-base alloy be plates to cement affinity intensity difference, add particulate porous coke material, electric powdered carbon, sneak into lignosulphonates again, the alkyl sulfonic acid dipersant has reduced contact resistance, has guaranteed the bond strength of piece cement again.And adding inferior sodium, inferior calcium, calcium oxide again, cement (silicate-type), its Central Asia sodium and calcium oxide are the substitutes of inferior calcium, are the enhancing of the cement agent of lengthening the life.Lignosulphonates and alkylsulfonate still are the water reducer and the plasticizer of cement, can control to have strengthened flowability curing time again, for site operation provides convenience.
Physical solid grounded resistance reducing agent of the present invention is a kind of nothing corrosion, do not have and runs off, and nontoxic novel electric resistance reducing grounding material, its easy to use, safety, and in conjunction with implementing ground connection in the electron conduction mode, be that the resistance product falls in a kind of desirable ground connection.
Table 1
(by weight percentage)
Table 2 is to (10cm)
3The resistance measurement of test block is the Ω of unit m as a result
Annotate 1. A: cement B: C-base alloy consists of weight ratio.2. institute's survey project is a same test block METHOD FOR CONTINUOUS DETERMINATION in order.
| Embodiment | Material name | ||||||||
| Cement | C-base alloy | Acetylene black | Crystal carbon | Inferior sodium | Inferior calcium | Lignosulphonates | Calcium oxide | Alkylsulfonate | |
| 1 | 27.0 | 61.0 | 0.06 | 3.58 | 0.5 | 5.0 | 2.4 | 0.4 | 0.06 |
| 2 | 33.6 | 16.8 | 0.27 | 44.8 | 1.12 | 0.56 | 0.29 | 0.56 | 2.0 |
| 3 | 60.0 | 12.4 | 5.2 | 1.30 | 3.3 | 0.03 | 0.03 | 5.91 | 0.13 |
Claims (1)
1. a physical solid grounded resistance reducing agent is characterized in that it is to be grouped into by following one-tenth; By weight percentage, below granularity 200 orders, C-base alloy, (promptly meeting the natural mineral products of index request and the major-minor product of various graphite products) 12.4-61;
Acetylene black 0.06-5.2
Natrium nitrosum 0.50-3.3
Calcium nitrite 0.03-5.0
Oxygen calcium 0.40-5.91
Lignosulphonates 0.03-2.6
Alkylsulfonate 0.06-2.0
Crystal carbon 3.4 44.8
Cement 〉=425#27-60.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94107890A CN1036623C (en) | 1994-07-25 | 1994-07-25 | Physical solid grounded resistance reducing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94107890A CN1036623C (en) | 1994-07-25 | 1994-07-25 | Physical solid grounded resistance reducing agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1099363A CN1099363A (en) | 1995-03-01 |
| CN1036623C true CN1036623C (en) | 1997-12-03 |
Family
ID=5033240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94107890A Expired - Fee Related CN1036623C (en) | 1994-07-25 | 1994-07-25 | Physical solid grounded resistance reducing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1036623C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112164487A (en) * | 2020-09-28 | 2021-01-01 | 杭州电盾装饰材料有限公司 | Inorganic composite resistance reducing agent and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030666A (en) * | 1988-03-28 | 1989-01-25 | 傅辅成 | Inorganic-chemical solid reducer of ground resistance |
| CN1051817A (en) * | 1990-11-17 | 1991-05-29 | 傅辅成 | A kind of solid grounded resistance reducing agent |
-
1994
- 1994-07-25 CN CN94107890A patent/CN1036623C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030666A (en) * | 1988-03-28 | 1989-01-25 | 傅辅成 | Inorganic-chemical solid reducer of ground resistance |
| CN1051817A (en) * | 1990-11-17 | 1991-05-29 | 傅辅成 | A kind of solid grounded resistance reducing agent |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1099363A (en) | 1995-03-01 |
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|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Jiang Liqian Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 19971203 Termination date: 20100725 |