WO1985000388A1 - Procede de coloration en continu d'acier inoxydable - Google Patents
Procede de coloration en continu d'acier inoxydable Download PDFInfo
- Publication number
- WO1985000388A1 WO1985000388A1 PCT/JP1984/000353 JP8400353W WO8500388A1 WO 1985000388 A1 WO1985000388 A1 WO 1985000388A1 JP 8400353 W JP8400353 W JP 8400353W WO 8500388 A1 WO8500388 A1 WO 8500388A1
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- WO
- WIPO (PCT)
- Prior art keywords
- coloring solution
- coloring
- potential difference
- solution
- stainless steel
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
- C23C22/77—Controlling or regulating of the coating process
Definitions
- the present invention relates to a method for continuously coloring a surface of a stainless steel glow by coloring the surface of the stainless steel glow by continuously passing the stainless steel glow through the coloring solution in one direction at a certain speed. More specifically, the present invention relates to a continuous coloration method for stainless steel gauze belts that can achieve uniform coloring even if the composition or concentration of the coloring solution inevitably changes with time by this continuous treatment. . Background art
- chromic acid-sulfuric acid aqueous solution such as chromic anhydride-sulfuric acid, sodium bichromate-sulfuric acid, and dichromic acid-sulfuric acid is used as the coloring solution.
- the chemical coloring of stainless steels is well known.
- GB 1122172 and GB U 22173 teach preferred examples of such coloring solutions. By immersing the stainless steel rope in such a coloring solution, it is possible to develop various colors on the stainless steel surface in accordance with the elapse time.
- the wipe The method described in the report is convenient.
- the principle is that if the potential difference between the gauze surface (lug base), which is immersed in the coloring solution and the film is formed, and the reference electrode set in the coloring solution is measured, the gauze surface is formed on the gauze surface.
- the glow is taken out of the coloring solution when the potential difference reaches a predetermined value, coloring with a color tone corresponding to this potential difference can be achieved.
- a method that uses this potential difference as an index for color tone management is very useful for a batch coloring method.
- the colored film forming state of the stainless steel tuner passing through the coloring solution is changed from the state in which the colored film immediately after being immersed in the coloring solution has not yet been formed. Since there is a continuous change up to a certain thickness of the state just before being pulled out from the stainless steel, the potential difference between the position of the moving stainless steel and the reference electrode set in the coloring solution is calculated. Even if measurement is performed, the measured value of the potential difference is a value affected by the changed colored film over a wide range around this measurement position, and cannot be the potential difference corresponding to the film formation state at that measurement position. Therefore, it is impossible to use this potential difference directly as a detection signal for controlling the state of formation of the colored film.
- a potential measurement contact is installed so as to make contact with the surface of the stainless steel loody just before it comes out of the coloring solution (provided a contact whose position is fixed so as to make contact with the moving gauze surface). Even if the potential difference between the pot surface at the contact point and the reference electrode is measured, a wide range of colored film that extends into the coloring solution from this contact position (its state extends into the coloring solution) (It changes continuously depending on the distance), and the potential corresponding to only the colored film (film at the measurement position) formed on the surface of the rope immediately before exiting the colored solution is measured. Not be.
- the composition of the coloring solution and the concentrations of the components inevitably change with time as the processing is continued.
- the concentration of Fe 3+ eluted by the oxidation-reduction reaction and the ratio of Cr 3+ to Cr s + change, and the temperature of the solution is usually higher than room temperature. This is because the ripening loss also occurs.
- the composition of such a coloring solution is usually higher than room temperature. This is because the ripening loss also occurs.
- Japanese Patent Publication No. 58-25747 proposes a solution to this problem of continuous coloring.
- the colored solution moves at the same speed as the surface to be processed moves.
- the size of the equipment is large, and there is no guarantee that the composition of the colored liquid and the degree of change, which change as the processing proceeds, can always be kept constant.
- Japanese Patent Publication No. 56-4151 discloses a prescription for measuring the potential difference between a continuously moving stainless steel ludy and a reference electrode placed in a coloring solution by applying the batch-type potential difference method to continuous processing as it is. Is disclosed. In other words, the potential difference between one point of continuously moving stainless steel and the reference electrode is measured, and this is used to control the generation of the colored film.
- Japanese Patent Application Laid-Open No. 58-167778 proposes a method of using the hue as a measurement index instead of using the potential difference between the reference electrode and the measurement electrode in the continuous coloring process of stainless steel barbecue.
- a continuously changing hue is used as a measurement index,
- An object of the present invention is to solve the above-mentioned specific problems associated with continuous coloring of a stainless steel strip. More specifically, the surface of the surface to be processed flowing in the colored solution may differ in the state of the colored film from place to place when viewed at a certain time, and furthermore, as the treatment proceeds, the composition of the colored solution and It is an object of the present invention to provide a formula which can eliminate such a variable factor even when the degree changes, and accurately measure the state of the colored film (and, consequently, the color tone) on the surface to be continuously processed during the processing.
- Another purpose of the present kiyoshi is to measure the state of the colored coating on the surface of the stainless steel band to be treated continuously without being affected by the above-mentioned fluctuation factors, and to uniformly color based on the measured values.
- the aim is to establish a continuous coloring method for the stainless steel glow zone that controls the processing conditions so that the color can be controlled.
- the stainless steel belt is continuously moved in one direction at a certain speed in the hand direction, while the immersion length in the chromic-sulfuric acid-based coloring solution is maintained.
- the continuous coloring method for stainless steel passed continuously
- a first potential difference between a steel strip pot passing through the first detection position and a reference electrode immersed in the coloring solution, a gauze of a gauze passing through the second detection position, and the coloring solution The second voltage between the reference electrode
- a continuous coloring method for stainless steel glows is provided.
- the unidirectional movement of the stainless steel loody is preferably performed by winding the gamdy unwound from the payoff roll onto the winding roll.
- immersion in the coloring solution for the distance of Luo Dy is performed by continuously passing Luo Dy through the colored solution tank installed between the two mouths.
- the “chromic acid-sulfuric acid based coloring solution” to which the present invention is applied is referred to as chromic anhydride-sulfuric acid-based solution, sodium bichromate-sulfuric acid-based solution, and calcium bichromate. It is an aqueous solution of so-called chromic acid monosulfuric acid such as mu-sulphate.
- Such a colored aqueous solution of chromic acid-sulfuric acid (this is simply referred to as a colored solution in this specification) is well known, and causes various oxidation and reduction reactions on the stainless steel surface.
- a toned colored film can be formed on the gong surface.
- the above two pairs of measurement (detection) positions can be selected in more than one place. In other words, two or more pairs of positions are selected at two or more locations, and the potential difference is detected at two or more locations. In that case, one position may be shared by different pairs.
- the length of the part where Lingda comes into contact with the coloring solution between the two positions should be at least 1 Z5 or more for the total immersion of the Lingda in the coloring solution.
- O PI Can be controlled by adjusting the amount of heat supplied to the coloring solution from outside.
- Fig. 1 is a coloring model diagram for explaining the principle of the method of the present invention.
- FIG. 2 is a schematic diagram showing an example of selecting two positions according to the present invention
- FIG. 3 is a schematic diagram showing another example of selecting two positions according to the present invention
- FIG. 4 is a schematic diagram showing another example of selecting two positions according to the present invention
- FIG. 5 is a schematic diagram showing an example of selecting one of two positions according to the present invention.
- FIG. 6 is a schematic cross-sectional view showing an apparatus suitable for carrying out the method of the present invention
- FIG. 7 is a perspective view for explaining a method of bringing a measuring terminal into contact with a continuously moving car
- FIG. 8 is a graph for explaining the change over time of the potential difference with the reference electrode at two positions and the change over time of the difference between each potential difference. Detailed description of the invention
- Fig. 1 shows that the stainless steel ⁇ 1 is moving continuously from left to right while passing through the colored solution zone 2 (hereinafter referred to as the colored liquid zone). It is a conceptual diagram showing the length a at a considerably reduced scale. Assuming that the colored liquid zone 2 does not move, and only the rope 1 passes through this colored liquid zone 2 continuously at a certain speed,
- the colored film 5 gradually grows on the surface of the tuner 1 and finally reaches a certain thickness t. It suffices if the spontaneous potential corresponding to this thickness t can be measured, but this is practically impossible. For example, even if the potential difference between the barge 1 (position X in the figure) located at the passage end point 4 and the reference electrode 6 installed in the coloring liquid zone 2 is measured, the oxidation-reduction reaction causes coloring from this position. It occurs in the wide area of Luo-dy 1 extending into liquid zone 2. Also, in that area, the natural potential differs depending on each location.
- the potential difference is measured as the total amount affected by this region, and it cannot be said that it corresponds to the thickness t.
- the measurement position X is taken at a position such as a to d shown in the drawing. Even in the places where the colored liquid zone 2 rises, as in a and d, the gong itself is electrically connected, so it can be used as the measurement position.
- the position a or d is affected by the reaction surface extending into the coloring liquid zone 2 from the passage end point 4 or the passage start point, and extends to the left or right of the position at the position b or c. Affected by reaction surface.
- the composition, portability, amount of immersion, temperature, etc. of the coloring solution inevitably change with the lapse of processing time as described (from a given reaction system to the reaction product).
- the reaction system itself inevitably changes because the is continuously extracted.
- the change with time of the reaction system changes the potential difference. Therefore, the potential difference between the position of the continuously moving Luoyang 1 (the measurement position is stationary) and the reference electrode 6 in the coloring solution is measured, and this is used to control the formation of the colored film. This is accurate even if it is adopted as a measure signal.
- FIGS. 2 to 5 schematically illustrate a typical mode of measuring the potential difference at these two positions, similarly to FIG. Figure 2 shows an example in which rope 1 takes one measurement position at position a where it exits from colored liquid zone 2, and the other takes position at position d before steel band 1 enters colored liquid zone 2. It is. At each measurement position, the base of steel dynasty 1 passing therethrough is brought into contact with the measurement contact terminal. The details of this measurement terminal will be described later, but the position of the measurement terminal itself is substantially fixed (this relationship is the same in Figs. 3 to 5). In Fig. 2, rope 1 passing through position a and the reference electrode
- the potential difference V a between the steel strip 1 passing through the position d and the reference electrode 6 is also measured at the same time. Then, taking the difference ⁇ V between the measured values Va and Vd, the difference ⁇ ⁇ in the potential difference is due to the influence of the above-mentioned wide area where the degree of the coloring film is different and various fluctuation factors of the coloring solution. It is thought that they were mutually erased, but it turned out to be a truly accurate indication signal for knowing the surface behavior at that time. In this case, even if the measurement position is outside the colored liquid zone 2 as shown in Fig. 2, since the body itself is a conductor, the distance from the colored liquid zone 2 to the measured position during the measurement time is not sufficient. Without significant fluctuations, this would not itself be a disturbance.
- Fig. 3 shows that one measurement position a is in the same position as
- OMFI ⁇ Fig. 4 shows an example in which measurement position e is located in colored liquid zone 2
- Fig. 4 shows an example in which both measurement positions b and c are located in colored liquid zone 2
- Fig. 5 shows one of them.
- Fig. 2 shows an example in which the measurement position d is in the same position as in Fig. 2, but the other measurement position b is present in the colored liquid zone 2 ⁇ .
- the difference ⁇ V between the potential difference V i between one location and the reference electrode S and the potential difference Vj between the other location and the reference electrode 6 is detected.
- the difference ⁇ V in the potential difference detected by any of these modes differs in the magnitude of the value of ⁇ V, as described in FIG.
- the influence of the area and the various variables of the coloring solution are eliminated from each other, giving an accurate indication signal for knowing the surface behavior at that time.
- the difference in the potential difference can be measured at two or more locations by combining the above-described kaku-like techniques, and two or more different ⁇ V values can be detected. Control The greater the number of f-signs, the more precise the control.
- the reference electrode can be shared at any position.
- one or both of the two measurement locations may be at a location where Luo Dy is not in contact with the coloring solution, or at a location where Dy Dy is in contact with the coloring solution, What is important is that there must be a part between these two points where the gully contacts the colored solution (3 ⁇ 4S). It is preferable that the length of the portion between the two positions where the coloring solution comes into contact with Luo Dy has a length of at least 15 or more, which is the total length of the Ding Dy contact with the coloring solution. For example, the path length of the lane 1 between e-4 in Fig. 3, C-bm in Fig. 4, and 3-b in Fig. 5 from the passage start point 3 to the passage end point 4 Way
- FIG. 6 shows a schematic cross section of a device capable of suitably implementing the present method.
- stainless steel candy 1 is continuously passed through treatment box 7 containing coloring solution 2. More specifically, the stainless steel 1 is unwound from the payoff roll 8 and turned by the turning rollers 9, 10, 11, 12 and 13 provided inside and outside the dan. It is taken up by a coiler 14 along a path passing through the inside.
- the immersion length ⁇ of Luo-dy 1 scattered in the coloring solution is the path length from the passage start point 3 to the passage end point 4, but this a beach is> It can be adjusted by moving the rolls 9 and 13 out of the tank up and down, or by moving the positions of rolls 9 and 13 in the ⁇ direction to change the angle of immersion of the steel into the coloring solution 2.
- Such control of the comic by adjusting the roll position, and consequently, the control of the time when the steel 1 passes through the coloring solution 2 can be performed even while the device is operating.
- Control of the time for rope 1 to pass through coloring solution 2 can also be performed by controlling the speed of the movement of ⁇ ⁇ 1.
- the winding speed may be controlled. More specifically, the rotation speed of the tension roll 15 installed near the coiler 14 may be adjusted. This rotation speed can be adjusted by controlling the rotation speed of the electric motor that drives the tension roll 15, and a known inverter system 31 can be used for this rotation speed control.
- Processing tank 7 is a tank whose peripheral wall is formed as a double wall.
- a heating solution IS separate from the coloring solution is enclosed inside the wall.
- a maturation exchange coil ⁇ is installed, and a maturation medium is supplied to the maturation exchange coil 17 from a heat source 18 outside the system via a heat supply pipe 19.
- As the heat medium for example, steam can be used.
- An electromagnetic valve 20 is interposed in the heat supply path 19, and the amount of the heat medium supplied to the heat exchange coil 17 is adjusted by opening and closing control of the electromagnetic valve 20, whereby the temperature of the liquid 16 is adjusted. Done.
- the ripening of the liquid 16 is transmitted to the coloring solution 2 in the processing tank ⁇ ⁇ ⁇ ⁇ through the inner wall 21 of the double wall formed from the ripening material, and the temperature of the coloring solution 2 is adjusted accordingly.
- the relationship between the two positions can be selected in various modes as shown in FIGS. 2 to 5, and when two or more seals are selected, the positions may overlap. .
- the important thing is that there must be between the two positions the part where the glow zone comes into contact with the coloring solution (preferably, the length of the immersion of the ⁇ 1. It is.
- the example in Fig. 6 shows an example in which the two positions g are selected so as to take three digits. That is, the first pair consists of a position a after ⁇ ody 1 exits coloring solution 2 and reaches roll 13 and a location between roll 9 and coloring solution 2. d, the second ⁇ is the same position a as one of the first and the position e in the coloring solution 2, and the third pair is the same position e as the one of the second pair and the coloring solution from the roll 9.
- FIG. 7 schematically shows the mounting state.
- Reference numeral 1 denotes a steel strip 1 flowing continuously along a predetermined trajectory, and the leading end of a wedge 23 made of a conductive material is substantially at the center of one surface of the steel strip 1 flowing. Is pressed.
- the edge 23 is attached to a support member 24 whose position is fixed. At this time, preferably, a spring is interposed between the edge 23 and the support member 24, and the position of the support member 24 is fixed in a state where a constant pressure is applied in the direction of the fairy 1. In such a case, the edge 23 is brought into contact with the steel strip 1 by force.
- the conductor 23 is connected to the edge 23, and this is connected to the potentiometer described later. As shown in a and e in Fig.
- the tip of the flange 23 is colored. It is necessary to penetrate the coating and come into contact with the base of Steely 1. For this reason, it is necessary to apply a sufficient pressure to the support member 24 in the direction of the mesh band 1 to penetrate the colored coating.
- the metal constituting the terminal may form a spontaneous potential with the coloring solution 2, which may cause disturbance.
- the immersion part from the conductor 25 to the conductor 25 is preferably made of a material such as platinum or titanium. In the part which is not immersed in the coloring solution 2 such as the positions a and d, the terminal can be constituted by a normal conductor such as copper or steel.
- the reference electrode 6 is set in the coloring solution 2.
- This reference electrode Any material used to measure the electrode potential of metal can be used, but calomel electrodes and platinum electrodes are preferred, and the use of platinum electrodes is particularly suitable for practical operation. If the two measurement positions on Kaburaki 1 are multiple as in No. 611, it is not always necessary to install the number of reference electrodes corresponding to the number of the pairs, and this reference electrode is used for each different cell. Can be shared.
- FIG. 6 shows an example in which two fixed reference electrodes 6a and 6b are provided, since the wiring is difficult to be shared by each pair due to the presence of the roll 11. In any case, the potential difference between each of the two positions of the ⁇ ody 1 and the reference electrode is continuously measured, and the difference between the potential differences is detected. In the example of Fig. 6,
- the difference between the potential difference of the first seal is the potential difference Va between the ⁇ of the steel strip passing through position a and the reference electrode 6b, and the gutter of the steel strip passing through position d and the reference electrode.
- the potential difference between the second pair is the difference between the potential difference Va between the steel strip passing through the pin a and the reference electrode 6b, and the potential difference Ve between the plumber passing through the position e and the reference electrode 6a.
- the difference between the potential differences of the third pair is the difference between the potential difference Ve between the so-called mesh band passing through position e and the reference electrode 6a, and the potential difference Vd between the steel strip passing through position d and the reference electrode 6a. (Ve-Vd)
- Fig. 8 shows the differences (Va-Vd), (Va-Ve) and (Ve
- the potential differences Va and Vd are preferably detected by potentiometers 27, 28 and 29 as shown in FIG.
- the potential difference is input as an electric signal to the controller 30 having a built-in computer.
- the controller of the controller 30 calculates one or more of the required potential difference differences (Va-Vd), (Va-Ve), and (Ve-Vd), When the calculated difference of the potential difference exceeds the threshold value, the control signal is output to the adjusting device for adjusting the processing conditions. It is equipped with a means for adjusting the passage time through the device and a means for adjusting the temperature of the coloring solution 2.
- a control signal is output to adjust one or both of the adjusting means in the direction in which the steel strip 1 passes through the coloring solution 2. More specifically, the tension roll 15 is a means for adjusting the time required for the steel strip 1 to pass through the coloring solution 2.
- Inverter unit 31 for controlling the number of rotations of the electric motor and the coloring solution 2
- the control signal i is output to the opening adjuster of the solenoid valve 20 for adjusting the temperature so that the detected difference in the potential difference is within a predetermined range. The difference in the potential difference is controlled as a detection signal.
- the programming itself for outputting a signal itself uses a special signal, that is, a difference in potential difference, as a detection signal, if this can be detected by the present invention
- a person skilled in the art can process the signal using a known programming recipe.
- the relative relationship between the color tone and the difference in potential difference is grasped in advance, and based on the information obtained by the stroke.
- V What is necessary is just to select the value of the difference of the potential difference for obtaining the color tone according to the usual prescription of computer control.
- one or both of the time during which stainless steel steel passes through the coloring solution and the temperature of the coloring solution are determined by using the difference in the detected potential difference as a control signal.
- the potential difference is adjusted so as to suppress the temporal change of the difference, so that the desired color tone can be continuously colored uniformly.
- the colored stainless steel is preferably washed and then subjected to electrolytic treatment using a mixed aqueous solution of chromic acid and phosphoric acid, whereby the colored film is cured.
- the process of coloring the stainless steel BA finish (Bright Annealing finish) of SUS304 in a gold color was performed using a device with the same arrangement of devices as shown in Fig. S.
- the colored solution was an aqueous solution with a composition of 500 gZ of sulfuric acid and 250 gZ of chromic acid. No adjustment was made during the treatment.
- the temperature of the coloring solution was kept in the range of 82 ⁇ 2'c during the treatment.
- the stainless steel strip was continuously passed through the coloring solution so that the path length in the coloring solution was always 400 on during processing. D and a in Fig. 6 were selected as two positions for detecting the potential difference.
- this preliminary test was performed under substantially the same processing conditions as in the example.
- the potential difference between the position d and the reference electrode at position a when the gold color was obtained in this preliminary test was measured. (However, the measurement at each position was performed in both the preliminary test and this example. As described in Fig. 7, the edge 23 was brought into contact with the continuously moving stainless steel strip base material), which was 194.5 mv and-186.3 mv.
- the license speed at that time was 40 cm Z minute.
- the color difference ⁇ ⁇ ' was measured in accordance with the “Method of measuring color bodies in a two-degree field of view” specified in JISZ-8722, and the colors were displayed using the color difference display method specified in JISZ-8730.
- the color analyzer 307 manufactured by Hitachi, Ltd. was used for the measurement.
- the color difference E was within 0.3 at all measurement positions. This indicates that the gold color was extremely uniform over the entire length of the continuously treated stainless steel strip.
- Example 1 The difference in the potential difference between the two positions was not used as an instruction signal for control, and the speed of Example 1 was the same as in Example 1 except that the gold color was obtained in the preliminary test described above and the color was kept constant at 40 cmZ. Under the same processing conditions as above, continuous coloring was performed for 1 hour.
- the color difference E of the colored stainless steel band was measured according to the same measuring method as in Example 1. As a result, the color difference ⁇ was about 1.0 on average. Color differences were also observed by visual observation.
- the HL finish (Hair line polishing finish) of SUS304 was used as the steel to be treated, the temperature of the coloring solution was varied in the range of about 80 to 85 during processing, and in the case of this steel In the preliminary test, the difference between the potential differences at positions d and a required to obtain a gold color was 5.3 mv, so the difference between the two potentials was kept at 5.3 ⁇ 0.1 mv with a threshold value of ⁇ 0.1 mv.
- the continuous reading coloring process was performed for 1 hour under the same conditions as in Example 1 except that the line beads were controlled so as to be controlled.
- the license speed was 35 cmZ at the start of the treatment, but was controlled within a range of at least 34 cm / min to a maximum of 43 cmZ during & processing.
- the temperature of the coloring solution was 80.1'c at the beginning of the treatment, but was allowed to fluctuate within the range of SO.
- the color tone and color difference ⁇ E of the colored steel strip were measured by the same measurement method as in Example 1 except that the measurement interval was set to every 4 m.
- Table 1 shows the results.
- L in the column of color display in Table 1 corresponds to brightness, a corresponds to the relative amount of ⁇ and red, and b corresponds to the relative amount of old and blue. The difference between these values is small
- the coloring solution 50cm, 150cm, 250cm, and 350cm are separated from the hot pot (the position indicated by 3 in Fig. 6) where the steel starts to soak in the coloring solution.
- Continuous coloring was carried out under the same conditions as in Example 1, except that the four positions on the steel strip were selected as the positions for measuring the potential difference. Since each measurement position is present in the coloring solution, the part of the measuring instrument that is affected by the coloring solution (edge 23 and conductor 25 in Fig. 7) at this position must be made of titanium material. used. The treatment was performed for 2 hours.
- V 1, V 2, V 3, and V 4 The potential difference from the reference electrode is expressed as V 1, V 2, V 3, and V 4 in order from the closest to the infiltration start point (point 3 in Fig. 6).
- V 2-V 1 3.10mv
- V 4-V 3 2.81mv
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Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8484902731T DE3467189D1 (en) | 1983-07-11 | 1984-07-10 | Method of continuously coloring stainless steel |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58/124845 | 1983-07-11 | ||
JP58124845A JPS6022065B2 (ja) | 1983-07-11 | 1983-07-11 | ステンレス帯鋼の連続着色方法 |
Publications (1)
Publication Number | Publication Date |
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WO1985000388A1 true WO1985000388A1 (fr) | 1985-01-31 |
Family
ID=14895516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1984/000353 WO1985000388A1 (fr) | 1983-07-11 | 1984-07-10 | Procede de coloration en continu d'acier inoxydable |
Country Status (5)
Country | Link |
---|---|
US (1) | US4620882A (ja) |
EP (1) | EP0150219B1 (ja) |
JP (1) | JPS6022065B2 (ja) |
DE (1) | DE3467189D1 (ja) |
WO (1) | WO1985000388A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0415365U (ja) * | 1990-05-28 | 1992-02-07 | ||
NL1014629C2 (nl) * | 2000-03-13 | 2001-09-14 | Inventum B V | Inrichting voor het chemisch behandelen van een oppervlak. |
US20060191102A1 (en) * | 2005-02-15 | 2006-08-31 | Hayes Charles W Ii | Color-coded stainless steel fittings and ferrules |
CN101384754A (zh) * | 2006-02-15 | 2009-03-11 | 斯瓦戈洛克公司 | 用于使低温渗碳奥氏体不锈钢着色的改进工艺 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5225817B1 (ja) * | 1971-06-22 | 1977-07-09 | ||
JPS564151B2 (ja) * | 1976-09-13 | 1981-01-28 | ||
US4370210A (en) * | 1981-03-10 | 1983-01-25 | Nippon Kinzoku Co., Ltd. | Method and apparatus for continuously forming color display layer on stainless steel strip |
JPS5825747B2 (ja) * | 1980-06-16 | 1983-05-30 | クリナップ株式会社 | ステンレス鋼製品の連続着色法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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GB1366480A (en) * | 1970-12-19 | 1974-09-11 | British Federal Welder | Strip line flash welding machines |
US3839096A (en) * | 1971-01-22 | 1974-10-01 | Int Nickel Co | Reproducibility of color in coloring stainless steel |
US3916140A (en) * | 1971-09-22 | 1975-10-28 | British Federal Welder And Mac | Method of and apparatus for strip flash welding |
AU503043B2 (en) * | 1974-10-22 | 1979-08-23 | Nippon Steel Corporation | Coloring a stainless steel |
US4133922A (en) * | 1977-05-27 | 1979-01-09 | Joseph Smith | Wreath device |
JPS55125278A (en) * | 1979-03-20 | 1980-09-26 | Nisshin Steel Co Ltd | Coloring method for stainless steel |
JPS5825747A (ja) * | 1981-08-08 | 1983-02-16 | Kingo Yoshida | オ−デイオ・テレフオン |
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1983
- 1983-07-11 JP JP58124845A patent/JPS6022065B2/ja not_active Expired
-
1984
- 1984-07-10 WO PCT/JP1984/000353 patent/WO1985000388A1/ja active IP Right Grant
- 1984-07-10 US US06/711,538 patent/US4620882A/en not_active Expired - Fee Related
- 1984-07-10 DE DE8484902731T patent/DE3467189D1/de not_active Expired
- 1984-07-10 EP EP84902731A patent/EP0150219B1/en not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5225817B1 (ja) * | 1971-06-22 | 1977-07-09 | ||
JPS564151B2 (ja) * | 1976-09-13 | 1981-01-28 | ||
JPS5825747B2 (ja) * | 1980-06-16 | 1983-05-30 | クリナップ株式会社 | ステンレス鋼製品の連続着色法 |
US4370210A (en) * | 1981-03-10 | 1983-01-25 | Nippon Kinzoku Co., Ltd. | Method and apparatus for continuously forming color display layer on stainless steel strip |
Non-Patent Citations (1)
Title |
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See also references of EP0150219A4 * |
Also Published As
Publication number | Publication date |
---|---|
DE3467189D1 (en) | 1987-12-10 |
JPS6022065B2 (ja) | 1985-05-30 |
EP0150219A4 (en) | 1985-11-07 |
JPS6029474A (ja) | 1985-02-14 |
US4620882A (en) | 1986-11-04 |
EP0150219A1 (en) | 1985-08-07 |
EP0150219B1 (en) | 1987-11-04 |
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