JP4961545B2 - Manufacturing method of metal material - Google Patents

Description

  The present invention relates to a metallic material manufacturing method for cleaning a dirty metal material and manufacturing the clean metal material.

2. Description of the Related Art Conventionally, as a photosensitive drum used as a photosensitive member for a printer, a copier, or the like, a drum in which a photosensitive member is stacked on a surface of a cylindrical aluminum tube has been used.
The process for manufacturing the photoconductor drum includes a process for manufacturing an aluminum element tube and a process for laminating a photoconductor on the manufactured aluminum element tube. Among these, the process for manufacturing the aluminum base pipe includes a process for forming the aluminum base pipe and a process for cleaning the aluminum base pipe.

  In the process of forming the aluminum tube, the aluminum tube is temporarily suspended until cutting oil, fine metal pieces, and other dirt adhere to the aluminum tube due to cutting, etc., or until the cleaning process is executed. In order to protect the participation of the surface of the aluminum base tube during storage, protective oil may be applied to the surface of the aluminum base tube. For this reason, in the cleaning process of the aluminum base pipe, the aluminum base pipe is cleaned using the following cleaning system in order to remove the dirt.

Here, FIG. 3 is a schematic diagram of a cleaning system 100 that executes a step of cleaning the aluminum base tube in the aluminum base tube manufacturing method 100.
In this cleaning system 100, as shown in FIG. 3, the overhead cranes installed above the respective cleaning tanks 110 to 128 are used to transport the aluminum elementary tubes stored in the pallet, and the respective cleaning tanks are used by the cranes. The work of carrying the pallet in order from 110 to 128 and cleaning the aluminum tube is executed.

  In the first step, the general water 110b is stored in the cleaning tank 110, and the aluminum base tube is immersed in the general water 110b stored in the cleaning tank 110. Further, the general water in the cleaning tank 110 is vibrated by ultrasonic waves emitted from the ultrasonic oscillator 110a. In the first step, a process for removing rough dirt on the aluminum base tube with vibrating water is performed (pre-cleaning).

  In the second step, the general water 112b mixed with the neutral detergent is stored in the cleaning tank 112, and the aluminum element tube is immersed in the water 112b mixed with the neutral detergent. In addition, the water 112b stored in the cleaning tank 112 is vibrated by the ultrasonic waves emitted from the ultrasonic oscillator 112a. In this second step, a process of further removing rough dirt on the aluminum base tube is performed by the action of vibrating water and detergent (cleaning 1).

  In the third step, pure water 114b is stored in the cleaning tank 114, and the aluminum base tube is immersed in the pure water 114b stored in the cleaning tank 114. In the third step, a process (primary pure water rinse 1) for diluting and removing the neutral detergent used in the second step is executed.

  In the fourth step, sodium phosphate water 116b in which sodium phosphate is mixed in an amount of 2 to 3% by weight with respect to water is stored in the cleaning tank 116, and the sodium phosphate water 116b stored in the cleaning tank 116 is aluminum. The raw tube is immersed. In addition, the sodium phosphate water 116b stored in the cleaning tank 116 is vibrated by the ultrasonic waves emitted from the ultrasonic oscillator 112a. In the fourth step, a process (surface treatment) is performed to remove fine stains on the aluminum base tube that cannot be removed in the second process using a detergent by a chemical reaction with sodium phosphate.

  In the fifth step, pure water 118b is stored in the cleaning tank 118, and the aluminum base tube is immersed in the pure water 118b stored in the cleaning tank 118. The pure water 118b stored in the cleaning tank 118 is bubbled by the bubbling device 118a. In the fifth step, a treatment (primary pure water rinse 2) is performed in which the sodium phosphate water 116b attached to the aluminum base tube is diluted and dropped.

  In the sixth step, pure water 120b containing 1% by weight of hydrochloric acid is stored in the cleaning tank 120, and the aluminum base tube is immersed in the pure water 120b stored in the cleaning tank 120. In the sixth step, a treatment (neutralization) is performed in which sodium phosphate is neutralized with hydrochloric acid and the sodium phosphate is diluted.

  In the seventh step, pure water 122 b is stored in the cleaning tank 122, and the aluminum base tube is immersed in the pure water 122 b stored in the cleaning tank 122. The pure water 122b in the cleaning tank 110 is vibrated by the ultrasonic waves emitted from the ultrasonic oscillator 122a. In the seventh step, the purity of moisture mixed with impurities adhering to the aluminum base tube is increased using pure water, thereby removing impurities contained in the water adhering to the surface of the aluminum base tube (pure Water rinse 1) is performed.

  In the eighth step, pure water 124 b is stored in the cleaning tank 124, and the aluminum base tube is immersed in the pure water 124 b stored in the cleaning tank 124. The pure water 124b in the cleaning tank 110 is vibrated by the ultrasonic waves emitted from the ultrasonic oscillator 124a. When this eighth step is executed, the purity of moisture mixed with impurities adhering to the aluminum tube is further increased by using pure water following the seventh step, and the moisture attached to the surface of the aluminum tube. (Pure water rinsing 2) is performed to remove impurities contained in.

  In the ninth step, pure water at 90 to 95 ° C. is stored in the cleaning tank 126, and the aluminum base tube is immersed in the warm pure water stored in the cleaning tank 126 and immediately pulled up. In the ninth step, the pure water adhering to the surface of the aluminum base tube is evaporated to perform a process of removing moisture from the surface of the aluminum base tube (warm pure water pulling up).

  In the tenth step, hot air is blown onto the aluminum base tube when it is carried into the cleaning tank 128. In the tenth step, a process is performed in which moisture adhering to the surface of the aluminum base tube is blown off by blowing hot air and dried (hot air drying).

  However, in the above-described aluminum tube manufacturing method 100, since the detergent is used in the second step and sodium phosphate is used in the fourth step, the treatment for removing the detergent in the third step is performed. There is a problem that a large number of steps are required, such as a bubbling treatment for removing sodium phosphate in the fifth step, and a treatment for removing sodium phosphate in the sixth step.

Further, in the conventional method for producing an aluminum tube, chemicals such as detergents and sodium phosphate are used, so that there is a problem that these waste liquids are difficult to process.
Therefore, an object of the present invention is to solve the above-mentioned problems and to provide a method for producing a metallic material capable of washing a dirty metallic material with a small number of steps and using no waste liquid.

Method for producing a metallic material for achieving the above object, wash the dirty metal material, method of manufacturing a metallic material to produce a clean the metallic material was prepared in the following method negative An ionic water cleaning step of immersing the metal material in the negative ion water and cleaning the metal material in an ion cleaning tank in which ionic water is stored is characterized.
The negative ion water is deoxygenated by deoxygenating to bring the dissolved oxygen of pure water to 1 ppm or less, and an electrolysis step of electrolyzing the pure water deoxygenated by the deoxygenating step; Among the water electrolyzed by this electrolysis step, through the stabilization step of stabilizing the water on the cathode chamber side by applying a pressure of 4 kg / cm ² or more in a sealed stabilization tank, Manufactured by treating water.

  In this method of manufacturing a metal material, instead of cleaning with a detergent, cleaning using negative ion water (described later) with a very high cleaning ability discovered by the applicant of the present application is performed. No need to remove the detergent from the container. Further, when cleaning with negative ion water is performed, dirt that cannot be removed with a detergent can be cleaned, so that cleaning with sodium phosphate water, which has been conventionally performed, is also unnecessary. Furthermore, the treatment using the sodium phosphate water to remove the sodium phosphate water attached to the metal material is not necessary. Therefore, if this method for producing a metal material is used, the metal material can be cleaned with few steps. In addition, this metal material manufacturing method does not use chemicals such as detergents or sodium phosphate, and even if the waste liquid comes out, it simply performs a simple treatment and does not harm the waste liquid. Therefore, the metal material can be washed with no waste liquid.

  As described in claim 2, when the ion cleaning tank is provided with an ultrasonic oscillation means for oscillating ultrasonic waves, in the ion cleaning step, negative ion water is vibrated by the ultrasonic waves oscillated from the ultrasonic oscillation means. The metal material may be washed by immersing the metal material in the vibrating negative ion water. In this way, the metal material is cleaned not only by the cleaning power of negative ion water but also by the vibration of ultrasonic waves, so that the metal material can be cleaned more cleanly.

  In a case where the ion cleaning layer includes a maintaining means for maintaining the hydrogen ion concentration of the negative ion water as described in claim 3, in the ion cleaning step, the negative ions whose hydrogen ion concentration is maintained by the maintaining means. The metal material is washed by immersing the metal material in water. In this way, even if the dirty metal material is washed repeatedly, the ability to wash negative ion water does not fall, so even if the dirty metal material is washed repeatedly, the metal material can be washed clean at any time. it can.

By the way, as a process except an ionic water washing | cleaning process, it is preferable to provide the following processes.
First, as described in claim 4, the water stored in the first cleaning tank is vibrated using the ultrasonic wave emitted from the second ultrasonic oscillation means provided in the first cleaning tank. The second cleaning tank is equipped with a rough cleaning process for immersing a metal material in the vibrating water in the first cleaning tank and cleaning the metallic material, and water stored in the second cleaning tank. A rinsing step of washing the metallic material by immersing the metallic material in the water in the vibrating second washing tank by vibrating using the ultrasonic wave emitted from the third ultrasonic oscillating means; It is preferable to execute a drying step of drying moisture adhering to the raw material, and the ionic water cleaning step is preferably executed between the rough cleaning step and the rinsing step. Among these, conventionally, the first step 110 equivalent to the rough cleaning step, the seventh step 122 equivalent to the rinsing step, and the ninth and tenth steps 126 equivalent to the drying step are executed. In addition to these steps, the same cleaning effect can be obtained in only five steps of executing the ionic water cleaning step. Therefore, if the method for producing a metal material according to the present invention is used, the metal material can be cleaned with a much smaller number of steps than the conventional method.

Further, as described in claim 5, the pre-cleaning step of cleaning the metal material by spraying water on the metal material may be executed before the rough cleaning step. Further, as described in claim 6 , the third cleaning tank includes a bubbling means for discharging bubbles into the pure water stored in the third cleaning tank, and the bubbles are released by the bubbling means. Immerse the metal material in the pure water in the washing tank and wash the metallic material, and soak the metal material in the pure water in the fourth washing tank where the pure water is stored. Of course, the immersion cleaning process for cleaning the metal material may be performed between the ionic water cleaning process and the rinsing process. By adding the above steps, the metal material can be cleaned more cleanly.

In the cleaning process, as described in claim 7 , the metal material is immersed in the fifth cleaning tank in which the heated pure water is stored and pulled up to evaporate the pure water from the metal material. It may consist of a drying step and a second drying step of blowing hot air on the metal material.

Embodiments of the present invention will be described below.
Here, FIG. 1 is a schematic diagram showing each process of the cleaning system 1 that executes the method for manufacturing the aluminum base tube 90.

  The cleaning system 1 of the present embodiment includes 10 processes. In the cleaning system 1, a pallet 98 that holds a plurality of aluminum elementary tubes 90 in an upright state and a crane 99 that transports the pallet 98 are used. In this cleaning system 1, the pallet 98 and the crane 99 are used to carry the aluminum base tube 90 into the cleaning tank for performing each process, and when each process is completed, the aluminum element is removed from the cleaning tank for performing the previous process. The operation is carried out by carrying out the operation of carrying out the tube 90 and carrying the aluminum tube 90 into the cleaning tank for performing the next step.

  In the 1st process, it carries out using cleaning tank 10 in which shower device 10a was installed. In the first step, when the aluminum base tube 90 is carried into the cleaning tank 10, the shower device 10 a is operated, and tap water is sprayed toward the aluminum base tube 90 for about 40 seconds. In this first step, rough removal is performed to roughly remove contaminants such as protective film oil, cutting oil, or cutting waste adhering to the surface of the aluminum base tube 90. This first step corresponds to the pre-cleaning step of the present invention.

  In the second step, an ultrasonic oscillator 12a (corresponding to the second ultrasonic oscillating means of the present invention) is installed, and a cleaning tank 12 (corresponding to the first cleaning tank of the present invention) in which tap water 12b is stored is used. To be implemented. In this second step, when the aluminum base tube 90 is carried into the cleaning tank 12, the ultrasonic oscillator 12a is activated, and the tap water 12b that vibrates in response to the ultrasonic waves oscillated from the ultrasonic oscillator 12a is applied. Soak for about 40 seconds. In this second step, as well as the first step, rough removal that roughly removes the protective film oil, cutting oil, or cutting contaminants adhering to the surface of the aluminum base tube 90. Is made. In addition, the tap water 12b used at the 2nd process is heated to 40-60 degreeC by the vibration by an ultrasonic wave. The frequency oscillated from the ultrasonic oscillator 12a is a sound wave of 18000 Hz or more. This second step corresponds to the rough cleaning step of the present invention.

  In the third step, an ultrasonic oscillator 14a (corresponding to the first ultrasonic oscillating means of the present invention) is installed, and a cleaning tank 14 (corresponding to the ion cleaning tank of the present invention) in which negative ion water 14b described later is stored is installed. Implemented. Further, the negative ion water 14b overflowing from the cleaning tank 14 is collected and filtered in this cleaning tank 14, and the hydrogen ion concentration is recovered through the ionosphere and supplied from below the cleaning tank 14, or the cleaning tank 14 The negative ion water 14b overflowing from the water is filtered and exhausted, and a new negative ion water is supplied to the cleaning tank 14 to maintain the hydrogen ion concentration of the negative ion water (corresponding to the maintenance means of the present invention). ). In this third step, when the aluminum base tube 90 is carried into the cleaning tank 14, the ultrasonic oscillator 14a is activated, and the negative ion water 14b that vibrates in response to the ultrasonic wave oscillated from the ultrasonic oscillator 14a. Soak for about 40 seconds. And in this 3rd process, this washing | cleaning which is the washing | cleaning which removes the oil component which cannot be removed even if it passes through the 1st and 2nd process, fine garbage, and other contaminants is performed. The frequency oscillated from the ultrasonic oscillator 12a is a sound wave of 18000 Hz or more. This third step corresponds to the ionic water cleaning step of the present invention.

  In the fourth step, an ultrasonic oscillator 16a (corresponding to the first ultrasonic oscillating means of the present invention) is installed, and a cleaning tank 16 (corresponding to the ion cleaning tank of the present invention) in which negative ion water 16b described later is stored is installed. Implemented. Further, the negative ion water 16b overflowing from the cleaning tank 16 is collected and filtered in this cleaning tank 16, and the hydrogen ion concentration is recovered through the ionosphere and supplied from below the cleaning tank 16, or the cleaning tank 16 The negative ion water 16b overflowing from the water is filtered and exhausted, and a new negative ion water is supplied to the cleaning tank 16 to maintain the hydrogen ion concentration of the negative ion water (corresponding to the maintenance means of the present invention). ). In the fourth step, when the aluminum base tube 90 is carried into the cleaning tank 16, the ultrasonic oscillator 16a is activated, and the negative ion water 16b that receives and vibrates the ultrasonic wave oscillated from the ultrasonic oscillator 16a. Soak for about 40 seconds. And in this 4th process, the main washing | cleaning which is the washing | cleaning which removes the oil component which cannot be removed even if it passes through a 1st process and a 2nd process, and fine garbage and other contaminants is performed following a 3rd process. The frequency oscillated from the ultrasonic oscillator 12a is a sound wave of 18000 Hz or more. The fourth step corresponds to the ionic water cleaning step of the present invention.

  In the fifth step, the bubbling device 18a (corresponding to the bubbling means of the present invention) is installed inside, and the cleaning is performed using the cleaning tank 18 in which the pure water 18b is stored. In the fifth step, when the aluminum base tube 90 is carried into the cleaning tank 18, the bubbling device 18a operates, and the bubbling device 18a is immersed in the pure water 18b from which bubbles are released for about 40 seconds. In the fifth step, a process for neutralizing the negative ion water adhering to the surface of the aluminum base tube 90 is performed. This fifth step corresponds to the bubbling step of the present invention.

  In the sixth step, the cleaning tank 20 in which pure water 20b or the like is stored is used. In this sixth step, the aluminum base tube 90 is carried into the cleaning tank 20 and immersed for about 40 seconds. In the sixth step, a process of placing the aluminum base tube 90 is performed in order not to lower the purity of pure water used in the seventh step and thereafter. This sixth step corresponds to the immersion cleaning step of the present invention.

  In the seventh step, an ultrasonic oscillator 22a (corresponding to the third ultrasonic oscillating means of the present invention) is installed, and a cleaning tank 22 (corresponding to the second cleaning tank of the present invention) in which pure water 22b is stored is used. To be implemented. In this seventh step, when the aluminum tube 90 is carried into the cleaning tank 22, the ultrasonic oscillator 22a is activated, and the pure water 22b receiving the ultrasonic wave oscillated from the ultrasonic oscillator 22a is applied for about 40 seconds. Soaked. And in this 7th process, the process which dilutes the negative ion water used by the 3rd process-the 4th process and the dirty pure water used by the 5th-6th process brought in by the aluminum elementary tube 90. Is made. In addition, the pure water 22b used at the 7th process is heated to 40-60 degreeC by the vibration by an ultrasonic wave. Moreover, the frequency oscillated from the ultrasonic oscillator 22a is a sound wave of 18000 Hz or more. This seventh step corresponds to the rinsing step of the present invention.

  In the eighth step, an ultrasonic oscillator 24a (corresponding to the third ultrasonic oscillating means of the present invention) is installed, and a cleaning tank 24 (corresponding to the second cleaning tank of the present invention) in which pure water 24b is stored is used. To be implemented. In the eighth step, when the aluminum tube 90 is carried into the cleaning tank 24, the ultrasonic oscillator 24a is activated, and the pure water 24b receiving the ultrasonic wave oscillated from the ultrasonic oscillator 24a is applied for about 40 seconds. Soaked. And in this 8th process, the process which dilutes the negative ion water used in the 3rd process-the 4th process and the dirty pure water used in the 5th-6th process is carried in by the aluminum element tube 90. , Following the seventh step. The pure water 24b used in the eighth step is heated to 40 to 60 ° C. by ultrasonic vibration. The frequency oscillated from the ultrasonic oscillator 24a is a sound wave of 18000 Hz or more. This seventh step corresponds to the rinsing step of the present invention.

  In the 9th process, it carries out using cleaning tank 26 in which 90-95 ° C pure water 26b was stored. In the ninth step, after being immersed in pure water 26b for about 40 seconds, it is pulled up. In this ninth step, the water adhering to the surface of the aluminum base tube 90 is pulled up by being immersed in high-temperature pure water 26b in order to fly away by evaporation. This ninth step corresponds to the first drying step of the present invention.

  In the 10th process, it implements using washing tank 28 to which hot air device 28a which blows hot air of 80-90 ° C was attached. In the tenth step, when the aluminum base tube 90 is carried, the hot air device 28a is activated, hot air is blown to the aluminum base tube 90 in the cleaning tank 28, and moisture attached to the surface of the aluminum base tube 90 is further blown away. . This tenth step corresponds to the second drying step of the present invention.

Use of the cleaning system 1 described above has the following effects.
In the cleaning system 1 described above, cleaning using negative ion water is performed instead of cleaning using a detergent that has been performed by a conventional manufacturing method, so that the process of removing the detergent from the aluminum base tube 90 becomes unnecessary. (Conventional third step). In addition, when cleaning with negative ion water is performed, dirt that cannot be removed with a detergent can be cleaned, so that cleaning with sodium phosphate water that has been conventionally performed is not required (conventional fourth step). Further, by performing the cleaning using the sodium phosphate water, it is not necessary to remove the sodium phosphate water attached to the aluminum base tube 90 (conventional fifth and sixth steps). Furthermore, in this embodiment, the aluminum base tube 90 is cleaned by using the shower apparatus 10a in the first process due to the extra space, but the same cleaning level as that of the conventional method is expected. In this case, the first step is also unnecessary. Therefore, if the cleaning system 1 of the present embodiment is used, the aluminum base tube 90 can be cleaned in a small number of steps. Further, if this cleaning system 1 is used, cleaning is not performed using chemicals such as detergent or sodium phosphate, and even if waste liquid comes out, it is oil or dust attached to the surface of the aluminum base tube 90. Therefore, it is possible to clean the aluminum tube 90 with no waste liquid by treating the waste liquid to a harmless state only by performing a simple treatment.

  Further, if the above-described cleaning system 1 is used, in the third and fourth steps, the negative ion water is vibrated using the ultrasonic oscillators 14a and 16a, and the aluminum element tube 90 is attached to the vibrating negative ion water. The aluminum base tube 90 is washed by soaking. Therefore, when this cleaning system 1 is used, the aluminum base tube 90 is cleaned not only by the cleaning power of negative ion water but also by vibration of ultrasonic waves, so that the aluminum base tube 90 can be cleaned more cleanly.

  Further, when the above-described cleaning system 1 is used, in the third and fourth steps, the aluminum base tube 90 is immersed and cleaned in negative ion water whose hydrogen ion concentration is maintained using the maintenance device 16c. In this way, even if the dirty aluminum tube 90 is repeatedly cleaned by a flow operation or the like, the ability to wash negative ion water does not deteriorate. 90 can be washed cleanly.

  Furthermore, in the above-described cleaning system 1, the second, third, seventh, ninth, and tenth steps may be performed in order to obtain the same cleaning effect as the conventional one. In addition to these steps, Since the first, fourth, fifth, sixth, and eighth steps are performed, the aluminum base tube 90 can be cleaned more cleanly than in the conventional manufacturing method.

Next, the negative ion water used in this embodiment will be described.
Here, FIG. 2 is a schematic diagram for explaining the production process of negative ion water of the present embodiment.

As shown in FIG. 2, in the method for producing negative ion water of this embodiment, negative ion water is produced from pure water through three steps.
In the deoxygenation step 50 as the first step, deoxygenation treatment is performed using an ion exchange membrane to reduce the concentration of dissolved oxygen in pure water to 1 ppm or less.

  In the electrolysis step 52, which is the second step, an electrode is placed in the deoxygenated pure water to electrolyze the pure water, and the cathode chamber side where the negative electrode is placed is taken out. Perform disassembly.

In the stabilization process 54 which is the third process, a pressure of 4 kg / cm ² was applied in a stabilization tank in which the pure water on the cathode chamber side was sealed out of the pure water electrolyzed in the electrolysis process. A stabilization process is performed for 2 to 3 days in the state. The pressure applied to pure water in the stabilization treatment is preferably 4 kg / cm ² or more, more preferably 12 kg / cm ² or more.

Hereinafter, the results of experiments on negative ion water obtained through these three manufacturing steps will be described for reference.
<Experimental Example 1 (Negative Ionized Water Stability over Time of the Present Embodiment)>
The test liquid 1 is negative ion water of the present embodiment, the test liquid 2 is negative ion water called “Redox Water Type IS ′ generator” manufactured by Redox Corporation, and the test liquid 3 is Amano Corporation. Manufactured and trade name: Electrolytic cleaning water purification device Σ3000 is negative ion water. And in this experiment, these test solutions were poured into a 100 ml transparent glass bottle to make it full. Then, these test solutions were left open at room temperature, and the pH change, oxidation-reduction potential (ORP) change, and appearance change were measured every predetermined time. The same measurement was performed even in a sealed state.

外観観察では、３者間に有意の差は認められなかったが、ｐＨ変化および酸化還元電位（ＯＲＰ）変化は表１に示されている通り、本実施形態のマイナスイオン水のｐＨが開放して放置したものについては７２時間放置しても１０に保たれていた一方で、他社品のｐＨは１０を下回っている。また、密閉したものについては、本実施形態のマイナスイオン水は７２時間放置してもｐＨが１２．２に維持されていた一方で、他社品のｐＨは１０を下回った。

In the appearance observation, no significant difference was observed between the three, but as shown in Table 1, the pH change and the oxidation-reduction potential (ORP) change were released when the pH of the negative ion water of this embodiment was released. For those that were left unattended, they were kept at 10 even after being left for 72 hours, while the pH of other companies' products was below 10. As for the sealed one, the pH of the negative ion water of this embodiment was maintained at 12.2 even after being left for 72 hours, while the pH of the other company's product was lower than 10.

From this, it was proved that the negative ion water of the present embodiment stably maintains a state where electrons are physically excessive by ionization for a long period of time. It is known that fungi that are microorganisms (gram-negative bacteria, gram-positive bacteria, sputum, etc.) cannot reproduce in highly alkaline areas. Therefore, the negative ion water of this embodiment is expected to have a bactericidal effect. Then, it experimented about the bactericidal action of the negative ion water of this embodiment next.
<Test example 2 (antibacterial action of negative ion water of this embodiment)>
The test liquid 1 is negative ion water of the present embodiment, and the test liquid 2 is sterilized and purified water made by Redox Co., Ltd., trade name: redox water type IS ′ generator. As a test method, a generally used “plate culture method” is used, the storage temperature is set to 25 ° C., and test solutions 1 and 2 and various bacteria are injected into a petri dish used for culture, The number of viable bacteria was counted every predetermined time. Table 2 below shows the test results. The bacteria used are Escherichia coli, Pseudomonas aeruginosa, Salmonella, Staphylococcus aureus, MRSA (methicillin resistant Stahirococcus aureus, meaning Staphylococcus aureus that has acquired resistance to methicillin (antibiotic name)) Yes, Vibrio parahaemolyticus.

試験液２では、２４時間経過しても菌が生きており、ＭＲＳＡに至っては、４倍に増加しているが、本実施形態のマイナスイオン水である試験液１が注入されたシャーレでは、何れの菌に対しても、６時間を経過した時点で生菌数が０となった。

In the test solution 2, the bacteria are still alive even after 24 hours, and the MRSA has increased by a factor of 4, but in the petri dish into which the test solution 1 that is the negative ion water of this embodiment is injected, For all the bacteria, the number of viable bacteria became 0 when 6 hours passed.

From this, it was demonstrated that the negative ion water of this embodiment can stably suppress the generation of microorganisms and molds for a long period of time.
<Test Example 3 (Acute toxicity test)>
As an acute toxicity test of negative ion water of the present embodiment, a fish toxicity test was conducted for Himedaka. The test conditions are as follows.
Test fish: Himedaka (average body length 3.0 cm, average body weight 0.24 g)
Condition of acclimatization: For 14 days before the test (tap water (pH 7.9) from which residual chlorine was removed by natural standing), water temperature: 23 ± 1 ° C. lighting: bred and acclimatized at 14 hours / day. The mortality rate of the test fish during the conversion period was less than 5%)
Number of fish: 10 fish, water temperature: 23 ± 1 ° C, lighting: 14 hours / day Test vessel: round glass washing tank diluted water: tap water from which residual chlorine has been removed by natural standing (pH 7.9)
Preparation of test water: The negative ion water of this embodiment was added to dilution water, and 1,000-100,000 ppm test water was prepared.
Measurement: The behavior of the test fish in each test water was observed, and the number of deaths after 24, 48, 72 and 96 hours was recorded.
Results: No deaths occurred in any test water. Therefore, the 0% mortality rate is 100,000 mg / l or more, and it is 218,341 g / l or more per body weight. Therefore, it is proved that the negative ion water of the present embodiment is not substantially toxic. It was.
<Test Example 4 (Detergency Test)>
Test water 1 is negative ion water of the present embodiment, test liquid 2 is redox water manufactured by Redox Co., Ltd., trade name: redox water type IS ′ generator), and test liquid 3 is manufactured by Amano Co., Ltd. Product name: Electrolytic washing water purification device Σ3000 is negative ion water. In addition, using a commercially available kitchen detergent mainly composed of a surfactant as a standard product, the cleaning power of these test solutions is determined according to JIS K3362 (Synthetic detergent test method) 7.2 (Synthetic detergent for kitchen). Comparative evaluation was made according to the above. Specifically, after washing for 3 minutes using a detergency tester (rotation speed 250 ± 10 rpm) equipped with a glass piece to which standard dirt (a mixture of beef tallow, soybean oil, monoolein and oil red) is attached Rinse for 1 minute, then air dry at room temperature for 1 day. The glass piece was immersed in a chloroform solution, and evaluation was performed by visually comparing the degree of redness (degree of dirt removal) of the chloroform solution with a standard product.

表３に示すように、試験液２及び３は、クロロホルム溶液の色が標準液より濃く、洗浄力が劣ることが判明したが、本実施形態のマイナスイオン水である試験液１は標準液と殆ど差がない洗浄力を有することが判明した。
＜試験例５（帯電防止効果）＞
ＪＩＳ Ｌ０２１７に規定する洗い方番号１０３に準じて、洗い−濯ぎ−脱水−自然乾燥を行った試料（ポリエステル１００％）に、試料水（試験液１は本実施形態のマイナスイオン水、試験液２は、レドックス株式会社製、商品名：レドックスウォータータイプＩＳ‘生成機）というマイナスイオン水で、試験液３は、アマノ株式会社製、商品名：電解洗浄水精製装置Σ３０００というマイナスイオン水、試験液４は純水である。）を２０ｍｌ／ｍ²吹きつけて、１時間熱風（７０℃）乾燥した。その後２４時間調湿し（温度２０±５℃、相対湿度４０％以下）、ポリエチレン袋に封入し試料の調製を行った。試料を回転式摩擦装置に入れ、６０±１０℃のドラムで１５分間運転した。絶縁性手袋でドラムより試料を取り出し、帯電電荷量測定装置のファラデーゲージに投入し、電位差計の数値Ｖ（ｖ）を読み、帯電電荷量Ｑ（Ｃ）を求めた。なお、試料に帯電している静電気は、１回ごとに自己放電式除電器を用いて除電した。

As shown in Table 3, the test solutions 2 and 3 were found to have a chloroform solution with a darker color than the standard solution and inferior in detergency. However, the test solution 1 which is negative ion water of this embodiment is a standard solution. It was found to have a detergency with little difference.
<Test Example 5 (Antistatic Effect)>
In accordance with the washing method number 103 defined in JIS L0217, a sample water (100% polyester) subjected to washing-rinsing-dehydration-natural drying was added to sample water (test solution 1 is negative ion water of this embodiment, test solution 2). Is a negative ion water called “Redox Water Type IS ′ generator” manufactured by Redox Co., Ltd., and test solution 3 is a negative ion water called “Ammano Co., Ltd., product name: Electrolytic Washing Water Purifier Σ3000, test solution” 4 is pure water. ) Was sprayed at 20 ml / m ^{2 and} dried with hot air (70 ° C.) for 1 hour. The sample was then conditioned for 24 hours (temperature 20 ± 5 ° C., relative humidity 40% or less) and enclosed in a polyethylene bag. The sample was placed in a rotary friction device and run on a drum at 60 ± 10 ° C. for 15 minutes. A sample was taken out of the drum with an insulating glove, put into a Faraday gauge of a charged charge measuring device, and a numerical value V (v) of a potentiometer was read to obtain a charged charge amount Q (C). The static electricity charged on the sample was removed by using a self-discharge type static eliminator every time.

この表４に示されている通り、本実施形態のマイナスイオン水は、他の試験液に比べて、帯電防止効果において優れていることが判明した。
＜試験例６（消臭効果）＞
試料水（試験液１は本実施形態のマイナスイオン水、試験液２は、レドックス株式会社製、商品名：レドックスウォータータイプＩＳ‘生成機）というマイナスイオン水で、試験液３は、アマノ株式会社製、商品名：電解洗浄水精製装置Σ３０００というマイナスイオン水）１ｇを容器に秤取し、密栓して、メチルメルカプタン５０μｌをガスタイトシリンジを用いて密栓した容器に注入し、振盪しながら室温で放置した。経時的に容器内のガスをガスクロマトグラムへ注入した。同様の方法でブランクテストを行い、得られたガスクロマトグラム上のピーク高さを測定し、ブランクを本実施形態のマイナスイオン水として試料の各測定時刻における残存率を測定した。

As shown in Table 4, it was found that the negative ion water of this embodiment is superior in antistatic effect compared to other test solutions.
<Test Example 6 (deodorizing effect)>
The sample water is negative ion water (test solution 1 is negative ion water of this embodiment, test solution 2 is manufactured by Redox Co., Ltd., trade name: redox water type IS 'generator), and test solution 3 is Amano Co., Ltd. Product, trade name: electrolyzed water purification apparatus Σ3000 negative ion water) 1 g is weighed into a container, tightly sealed, and 50 μl of methyl mercaptan is poured into the tightly sealed container using a gas tight syringe and shaken at room temperature. I left it alone. Over time, the gas in the container was injected into the gas chromatogram. A blank test was performed by the same method, the peak height on the obtained gas chromatogram was measured, and the residual rate at each measurement time of the sample was measured using the blank as the negative ion water of this embodiment.

この表５に示されている通り、本実施形態のマイナスイオン水は、他の試験液に比べて消臭効果において極めて優れていることが判明した。
＜試験例７（安全性）＞
この実験では、マイナスイオン水を直接肌に触れさせる実験を行った。

As shown in Table 5, it was found that the negative ion water of the present embodiment was extremely excellent in deodorizing effect compared to other test solutions.
<Test Example 7 (Safety)>
In this experiment, an experiment was conducted in which negative ion water was directly in contact with the skin.

As a result, the negative ion water had a pH of 12 before touching human skin, but at the moment of touching the skin, the pH dropped to 5.6, which is a safe level for touching the human body.
Although one embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and can of course be implemented in various modes without departing from the gist of the present invention. is there.

It is a schematic diagram which shows each process of the cleaning system 1 which performs the manufacturing method of the aluminum raw tube 90. It is a schematic diagram for demonstrating the manufacturing process of the negative ion water of this embodiment. It is a schematic diagram which shows each process of the washing | cleaning system which performs the manufacturing method of the conventional aluminum element pipe.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Cleaning system, 10 ... Cleaning tank, 10a ... Shower device, 12 ... Cleaning tank, 12a ... Ultrasonic oscillator, 12b ... Tap water, 14 ... Cleaning tank, 14a ... Ultrasonic oscillator, 14b ... Negative ion water, 14c ... Maintenance device, 16 ... cleaning tank, 16a ... ultrasonic oscillator, 16b ... negative ion water, 16c ... maintenance device, 18 ... cleaning tank, 18a ... bubbling device, 18b ... pure water, 20 ... cleaning tank, 20b ... pure water, DESCRIPTION OF SYMBOLS 22 ... Cleaning tank, 22a ... Ultrasonic oscillator, 22b ... Pure water, 24 ... Cleaning tank, 24a ... Ultrasonic oscillator, 24b ... Pure water, 26 ... Cleaning tank, 26b ... Pure water, 28 ... Cleaning tank, 28a ... Hot air Equipment: 50 ... Deoxygenation step, 52 ... Electrolysis step, 54 ... Stabilization step, 90 ... Aluminum base tube, 98 ... Pallet, 99 ... Crane

Claims (7)

In the method for producing a metallic material, washing a dirty metal material to produce a clean metal material,
In an ion cleaning tank in which negative ion water produced by the following manufacturing method is stored, the metal material is dipped in the negative ion water to have an ion water cleaning step of cleaning the metal material. To make a metal material.
The negative ion water is
A deoxygenation step in which deoxygenation treatment is performed to reduce the dissolved oxygen of pure water to 1 ppm or less;
An electrolysis step of electrolyzing the pure water subjected to the deoxidation treatment by the deoxygenation step;
Among the water electrolyzed by this electrolysis step, through the stabilization step of stabilizing the water on the cathode chamber side by applying a pressure of 4 kg / cm ² or more in a sealed stabilization tank, Manufactured by treating water. In the manufacturing method of the metal raw material of Claim 1,
The ion cleaning tank includes first ultrasonic oscillation means for vibrating the negative ion water stored in the ion cleaning tank using ultrasonic waves,
In the ion water cleaning step, the metal material is cleaned by immersing the metal material in the negative ion water in the ion cleaning tank that is vibrated by the first ultrasonic oscillation means. A method of manufacturing a metal material. In the manufacturing method of the metal raw material described in any one of claims 1 and 2,
The ion cleaning layer includes a maintaining means for maintaining the hydrogen ion concentration of the negative ion water stored in the ion cleaning tank,
In the ion water cleaning step, the metal material is cleaned by immersing the metal material in the negative ion water whose hydrogen ion concentration is maintained by the maintaining means, and cleaning the metal material. In the manufacturing method of the metal raw material in any one of Claims 1-3,
The water stored in the first cleaning tank is vibrated using an ultrasonic wave emitted from the second ultrasonic oscillation means provided in the first cleaning tank, and the vibration in the first cleaning tank is vibrated. A rough cleaning step of immersing the metallic material in the water and cleaning the metallic material;
The ion water washing step;
The water stored in the second cleaning tank is vibrated using the ultrasonic wave emitted from the third ultrasonic oscillating means provided in the second cleaning tank, and the vibration in the second cleaning tank is vibrated. A rinsing step of immersing the metallic material in the water and washing the metallic material;
A method for producing a metal material, comprising: performing a drying step of drying water adhering to the metal material. In the manufacturing method of the said metal raw material described in Claim 4 ,
A method for producing a metal material, comprising: performing a pre-cleaning step of spraying water on the metal material to clean the metal material before the rough cleaning step. In the manufacturing method of the said metal raw material described in any one of Claims 4-5 ,
The third cleaning tank includes bubbling means for discharging bubbles into the pure water stored in the third cleaning tank, and the pure water in the third cleaning tank from which bubbles are released by the bubbling means is added to the pure water in the third cleaning tank. A bubbling cleaning step of immersing a metal material and cleaning the metal material;
In the fourth cleaning tank in which pure water is stored, the metal material is immersed in the pure water, and the metal material is cleaned.
A method for producing a metal material, which is performed between the ionic water cleaning step and the rinsing step. In the manufacturing method of the said metal raw material in any one of Claims 4-6 ,
The drying step
A first drying step of immersing and pulling up the metal material in a fifth cleaning tank in which heated pure water is stored, and evaporating the pure water from the metal material;
And performing a second drying step of blowing hot air onto the metal material.

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