JP2001098393A - Corrosion preventing method for iron member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a corrosion preventing method for an iron member by which the surface of an iron member can be made black-rusted in a short time and the operation can easily be made. SOLUTION: Alkali ion water 7 is charged to a vessel 3, a nickel plate 4 and a magnet 6 are fitted to an iron member F, which is covered with flannel 2 impregnated with the alkali ion water 7, a copper plate 5 is sunk into the vessel 3, the electric current is made to flow with the nickel plate 4 as a plus pole and the copper plate 5 as a minus pole, after that, the copper plate 5 is brought into contact with the iron member F. The distance between the nickel plate 4 and the copper plate 5 is made into the prescribed one, and the electric current is made to flow with the copper plate as a plus pole and the nickel plate 4 as a minus pole.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is reformed iron part so that the surface of the iron member is magnetite (Fe ₃ O ₄₎ to prevent corrosion of the direct, not touch iron member in the air The present invention relates to a method for preventing corrosion of iron members.

[0002]

2. Description of the Related Art Iron is exposed to water or moisture in the air.
The divalent iron ion (Fe²⁺) And (OH^-)
Ferrous hydroxide combined with so-called OH negative ions
(Fe (OH)_Two )become. This ferrous hydroxide
Ferric hydroxide oxidized by oxygen dissolved in water
(Fe (OH)_Three ). Ferric hydroxide (Fe (O
H) _Three ) Is called red rust. Leave the red rust
It is undesirable because corrosion progresses further
is there. In contrast, magnetite (Fe_ThreeO_Four)
It is called black rust. Black rust progresses further
The line is very slow, and iron and air are generated when the iron surface is covered with black rust.
Very good because it is cut off and no red rust occurs
Things. In conventional methods for preventing corrosion of iron members
To generate black rust on the surface of a tube, magnetized water is used for about one year.
Flow to allow iron ions to dissolve into the tube and perform black rusting.
It was a thing. However, it takes one year for black rust
And so on.

[0003]

The problem to be solved by the present invention is to solve these conventional problems, and to magnetize (black rust) the surface of the iron member in a very short period of time.
An object of the present invention is to provide a method for preventing corrosion of an iron member that can easily perform the operation.

[0004]

Means for solving the above problems are as follows: 1) A first terminal member is attached to an iron member to be processed so as to be in contact with the iron member, and the first terminal member is connected to the iron member to be processed. An iron to be treated, wherein the first terminal member and the magnet are attached with a cloth attached to a magnet opposite to the contact portion and containing alkaline ionized water mixed with powdered and granular weathered reef quenched coral and powdered and granular tourmaline. Cover the member so as to be wound, put alkali ionized water mixed with powdered and granular weathered reef quenched coral and powdered and granular tourmaline in a container, sink the second terminal member into the alkaline ionized water of the container, Connect the positive pole of the DC power supply to the terminal member, connect the negative pole of the DC power supply to the second terminal member, apply voltage by the DC power supply to promote the ionization of iron, and then place the second terminal member in a container. From Out is positioned to contact the cloth-like material which covers the treated iron member, magnetite on the surface of the treated iron member (F
e ₃ O ₄ ) is generated to modify the surface of the iron member to prevent corrosion of the iron member. 2) A magnet different from the magnet attached to the first terminal member is attached to the iron member to be treated. 3) The method for preventing corrosion of an iron member according to 1) or 2), wherein the iron member to be treated is a concrete steel frame.

[0005]

According to the present invention, powdered and granular weathered reef quenched coral and powdered and granular tourmaline are mixed in alkaline ionized water. Weathered reef quenched corals and tourmalines generate a large amount of negative ions (e ⁻ ) as their properties. As a result, electrochemical reduction occurs together with water and oxygen dissolved in the water, and a large number of OH negative ions (OH ⁻ ) are generated.
The first terminal member attached to the iron member to be wrapped around the cloth-like material impregnated with the alkaline ionized water becomes a positive electrode by applying a voltage of a DC power supply, and the second terminal member is submerged in the alkaline ionized water in the container. The terminal member is a negative pole. Since this first terminal member is in contact with the iron member to be treated,
Iron ionization of iron is promoted. Further, the magnetic force keeps the iron ions adsorbed on the surface of the iron member to be treated.
Next, a voltage is applied by bringing the second terminal member put in the alkaline ionized water in the container into contact with the cloth covering the first terminal member. As a result, a positive electrode and a negative electrode exist in the alkaline ionized water, and oxygen ions are generated on the surface of the iron member to be treated as a positive electrode in the alkaline ionized water by electrolysis to generate magnetite (Fe ₃ O ₄ ). I do. When the magnetic force is attached to the iron member to be treated, the iron ions are attracted to the surface of the iron member to be treated by a strong magnetic force. When the iron member to be treated is concrete steel frame,
Magnetite is formed on the steel surface of concrete.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present embodiment, the cloth-like material contains alkaline ionized water and is attached to the iron member to be treated.
The iron member to be treated may be settled in the alkali ion water, or may be used by spraying the alkali ion water on the iron member to be treated. Tourmaline is also called tourmaline,
The charge does not permanently decrease or disappear. Magnets include ferrite magnets and rare earth magnets, which are determined from the required magnetic flux density and the like. Weathered reef quenching corals generate OH ^- ions by being immersed in water, and their action is further enhanced by quenching. The cloth-like material can contain a large amount of alkali ion water, can be held without flowing out, and is preferably not easily dried, and a thick woven fabric called flannel or flannel is preferable.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described with reference to the drawings. The embodiment shown in FIGS. 1 to 4 uses flannel as a cloth material, uses a combination of iron members having an L-shaped cross section as an iron member to be processed, uses a nickel plate as a first terminal member, and uses a second terminal member. This is an example of a method for preventing corrosion of an iron member in which a copper plate is used as a terminal member, a copper member is used as a first terminal member after ionization of iron is promoted, and a nickel plate is used as a second terminal member. FIG. 1 is an explanatory view of a method for preventing corrosion of an iron member according to an embodiment. FIG. 2 is an explanatory diagram of a method for preventing corrosion of an iron member according to the embodiment. FIG. 3 is an explanatory view of a method for preventing corrosion of an iron member according to the embodiment. FIG. 4 is an explanatory diagram of the corrosion prevention method of the embodiment. In the drawing, 1 is a black rusting device, 2 is a flannel used as a cloth, 3 is a container, 4 is a nickel plate used as a first terminal member, 5 is a copper plate used as a second terminal member, and 6 is a magnet. , 7 are alkaline ionized water, 8 is a DC battery used as a DC power supply, 9 and 10 are conductive wires, F
Is an iron member. In the embodiment, a container 3 is prepared, and water mixed with powdered and granular weathered reef quenched coral and powdered and granular tourmaline is placed therein. The mixing amount is about 50 g of powdered granular weathered reef quenched coral and about 20 g of powdered granular tourmaline per liter of water. Granulated weathered reef quenched coral and granular tourmaline generate a large amount of negative ions (e ⁻ ) as their properties and cause electrochemical reduction of water and oxygen dissolved in water. Thus, a large amount of OH ^- ions are generated, and the water becomes alkali ion water 7. In the present embodiment, since the water is previously converted into alkaline water which has been passed through an electrolytic water dispenser, the alkaline ionized water 7 becomes even more alkaline. Further, flannel 2 was prepared, and alkali ion water 7 prepared separately was prepared.
Soak well. The iron member F used had red rust adhered to the surface and had a cross-sectional shape of 75 mm x 75 mm
It is L-shaped with a thickness of 6 mm and a length of 150 mm. Two iron members F are prepared, combined in a tubular shape, and placed upright as shown in FIG.
Next, a nickel plate 4 having a size of 125 mm × 50 mm and a predetermined thickness is prepared, and is attached to the iron member F such that the wide surface contacts the wide surface outside the iron member F. Next, a conductive wire 9 is prepared, and one end of the conductive wire 9 is attached to the nickel plate 4 to be electrically connected. Next, a copper plate 5 having a predetermined thickness of 80 mm × 45 mm is prepared, and one end of another conductive wire 10 is attached to the copper plate 5. Next, four magnets 6 each having a size of 75 mm × 60 mm, a thickness of 15 mm, and a magnetic flux density of 3.6 × 10 ⁻¹ (T) are prepared and attached to the four outer surfaces of the iron member F. One of the surfaces is attached to the outer surface of the nickel plate 4. Next, the flannel 2 sufficiently containing the alkali ion water 7 is attached so as to be wound around the outside of the iron member F to which the magnet 6 and the nickel plate 4 are attached. Next, the copper plate 5 is settled in the alkaline ionized water 7 of the container 3. Next, a DC battery 8 is prepared, one end of the conductive wire 9 connected to the nickel plate 4 is connected to the positive pole of the DC battery 8, and one end of the conductive wire 10 connected to the copper plate 5 is connected to the negative pole of the DC battery 8. I do. When the state shown in FIGS.
To apply a voltage of 7.5V. Since the iron member F and the nickel plate 4 serving as the positive electrode are in contact with each other, the negative ions of the iron member gather at the positive electrode, and iron ionization is promoted.
The iron ions are kept adsorbed on the surface of the iron member F by the magnetic force of the magnet 6. In this state, if one or two weeks have passed and the iron ionization has been sufficient, the energization is stopped and FIG.
Then, the copper plate 5 submerged in the alkaline ionized water 7 of the container 3 is attached to the iron member F as a first terminal member, the magnet 6 is attached to the copper plate 5, and the magnet 6 is attached to the remaining iron member F. And a nickel plate 4 as a second terminal member is mounted outside the magnet 6 mounted on the copper plate 5.
Thereby, the copper plate 5 and the nickel plate 4 are provided with an interval corresponding to the thickness of the magnet 6. In this state, the flannel 2 sufficiently containing the alkali ion water 7 is wound, and a voltage is applied using the copper plate 5 as a positive electrode and the nickel plate 4 as a negative electrode. Then, the alkali ion water contained in the flannel 2 is electrolyzed, and oxygen ions are generated on the surface of the iron member F which becomes a positive electrode due to the contact with the copper plate 5, and magnetite (Fe ₃ O ₄ ) is generated. Generated. In this embodiment, magnetite (Fe ₃ O ₄ ) is generated on the surface of the iron member F by keeping this state for half a day to one day, and the red rust adhered to the outside is peeled off. In this way, the process of magnetizing (blackening), which conventionally took about one year, can be shortened to about one to several months, and the work can be performed easily and a very useful method for preventing corrosion of iron members can be achieved. Furthermore, if the steel surface of the concrete is magnetized by this method, it is possible to prevent the rust on the steel surface from expanding due to the progress of corrosion and to prevent the concrete from cracking. It can be used as a durable concrete building. Further, by further increasing the treatment time, a magnetite layer may be formed and used thicker. FIG. 5 shows the results of analyzing the magnetite produced by the method for preventing corrosion of iron members of the present example by the X-ray diffraction method. Measurement: Nagasaki Prefectural Industrial Technology Center Measurement method: X-ray diffraction method Processing time: After energizing for 2 and a half weeks in the state of Fig. 1, energizing for about 5 days in the state of Fig. 3 (To obtain magnetite of sufficient thickness for analysis) FIG. 5 (a) shows X-ray diffraction data of magnetite generated by the method for preventing corrosion of an iron member of the present example, and FIG. 5 (b) shows the data of FIG. 5 (a). 3) is a waveform processing of the X-ray diffraction data. FIG. 5C shows waveform data of ferrous oxide (FeO), FIG. 5D shows waveform data of magnetite (Fe ₃ O ₄ ), and FIG. 5E shows ferric oxide (Fe ₂ O ₃ ). Waveform data. In each of the data shown in FIG. 5, the horizontal axis represents electron energy (eV) and the vertical axis represents X-ray intensity. When the measured waveform data (FIG. 5B) is compared with FIGS. 5C to 5E, the waveform is the magnetite waveform data (FIG. 5B).
(D)) is well matched. Thus, it has been proved that magnetite is generated by the method for preventing corrosion of iron members according to the present embodiment.

[0008]

According to the present invention, it is possible to provide a method for preventing corrosion of an iron member in which the surface of the iron member can be magnetized (blackened rust) in a very short period of time and the work can be easily performed. When the magnet is attached to the iron member to be treated, magnetite can be generated more reliably. When the iron member to be treated is a concrete steel frame, the durability of the concrete building can be improved.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a method for preventing corrosion of an iron member according to an embodiment.

FIG. 2 is an explanatory view of a method for preventing corrosion of an iron member according to an embodiment.

FIG. 3 is an explanatory view of a method for preventing corrosion of an iron member according to an embodiment.

FIG. 4 is an explanatory view of a method for preventing corrosion of an iron member according to an embodiment.

FIG. 5 is a graph showing an analysis result by a X-ray diffraction method of a product obtained by a method for preventing corrosion of an iron member according to an example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Black rusting device 2 Flannel 3 Container 4 Nickel plate 5 Copper plate 6 Magnet 7 Alkaline ion water 8 DC battery 9 Conductive wire 10 Conductive wire F Iron member

Claims (3)

[Claims] A first terminal member is attached to an iron member to be treated, and a magnet is attached to a side opposite to a contact portion between the first terminal member and the iron member to be treated. The first terminal member and the iron member to which the magnet is attached are covered with a cloth-like material containing alkali ion water mixed with coral and granular tourmaline so as to be wound thereon, and the container is quenched with powdered and granular weathered reef. Pour alkaline ionized water mixed with coral and granular tourmaline, sink the second terminal member in the alkaline ionized water of the container, connect a positive electrode of a DC power supply to the first terminal member, and connect the second terminal member to the second terminal member. Connected to the negative electrode of the DC power supply, to apply a voltage by the DC power supply to promote the ionization of iron, and then take out the second terminal member from the container and contact the cloth-like material covering the iron member to be treated. Located in A method for preventing corrosion of an iron member by modifying the surface of the iron member by generating magnetite (Fe ₃ O ₄ ) on the surface of the iron member to be treated. 2. The method for preventing corrosion of an iron member according to claim 1, wherein a magnet different from the magnet attached to the first terminal member is attached to the iron member to be treated. 3. The method according to claim 1, wherein the iron member to be treated is a concrete steel frame.