JP4167380B2 - Method and apparatus for manufacturing hot-dip galvanized steel wire for outdoor exposure - Google Patents

Description

【００１７】
【発明の効果】
以上説明したように、本発明は、建築用部材、護岸工事用部材、魚網、フェンス等の屋外で暴露して使用する高摩擦性めっき鋼線を極めて簡素化した設備により高摩擦性を有する模様付溶融亜鉛めっき鋼線を量産することが可能になる。
【図面の簡単な説明】
【図１】本発明による溶融亜鉛めっき鋼線製造装置の概略構成を示す図である。
【図２】（ａ）は従来の表面加工を施さないめっき鋼線であり、（ｂ）、（ｃ）、（ｄ）は本発明による模様付鋼線の一例を示す図である。
【図３】本発明による模様付ロール配置の一例を示す図である。
【符号の説明】
１…巻戻しリール
２…前処置装置
３…めっき浴
４…めっき槽
５…断気装置
６…冷却装置
７…ブライダルロール
８…模様付与装置
９…巻取りリール[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method of manufacturing a patterned steel wire having high friction on the surface used by exposing outdoors such as building members, revetment members, fish nets, fences, etc., and a surface processing apparatus for imparting this pattern The present invention relates to a hot-dip galvanized steel wire manufacturing apparatus. As the plated steel wire, iron wire for wire mesh, wire for bridge, PWS wire, PC steel wire. These are plated steel wires such as ropes and plated steel wires for machine parts such as screws, bolts and springs.
[0002]
[Prior art]
As the plated steel wire, a galvanized steel wire or a zinc-aluminum alloy plated steel wire that is more excellent in corrosion resistance is used. This zinc-aluminum alloy-plated steel wire is generally cleaned by cleaning, degreasing, etc., then flux-treated, and then hot-plated mainly with zinc as the first stage, Hot-dip plating in a Zn-Al alloy bath with 10% Al addition as two stages or plating directly with a Zn-Al alloy bath with 10% Al addition and then pulling up vertically from the plating bath and cooling After that, it is manufactured by a winding method. And the equipment configuration used in the manufacturing method described above is an apparatus for supplying a plated steel wire, a plating bath apparatus for melting a plating alloy and maintaining it at a predetermined temperature, and a wiring apparatus for passing the steel wire through the plating bath and taking it out. The cooling device for cooling the steel wire coming out of the plating bath, and the winding device for winding the steel wire, but the surface state of the manufactured plated steel wire is glossy and smooth. There is no friction.
[0003]
As described above, the above-described problems in the manufacturing method and equipment are that the surface state of the manufactured plated steel wire is glossy, smooth, and used for general purposes. As a manufacturing facility for this purpose, in order to maintain the smoothness of the surface, in the cooling device that cools the steel wire coming out of the plating bath, the cooling water is solidified after plating with a hose-like nozzle only for the purpose of cooling. It is designed to have a structure for pouring water on the surface of the plated steel wire. The surface of the plated steel wire thus produced is smooth and glossy.
[0004]
In addition, various hot dip galvanized steel wires have been manufactured conventionally. However, these steel wires have always been focused on functionality, and have a metallic luster, so that the surrounding aesthetics are impaired for many years. The current situation is that no steel wire has been manufactured that is environmentally friendly and has an aesthetic that takes aesthetics into consideration.
[0005]
[Problems to be solved by the invention]
The present invention provides a method for producing a patterned steel wire that has excellent corrosion resistance and workability in a hot dip galvanized steel wire, does not crack or peel off in the plated alloy layer, and has high friction on the surface. It aims at providing the manufacturing apparatus of the hot dip galvanized steel wire provided with the pattern provision apparatus for doing.
[0006]
[Means for Solving the Problems]
The present invention is characterized in that the surface of a plated layer of a hot-dip galvanized steel wire has a point or linear high frictional uneven geometric pattern engraved continuously in the longitudinal direction, the lateral direction and / or the oblique direction. The method of manufacturing a hot-dip galvanized steel wire for outdoor exposure is as follows. In the device for manufacturing a hot-dip galvanized steel wire, a plating bath device that melts the plating alloy and maintains it at a predetermined temperature. A wire passing device that allows the steel wire to pass through, a gas isolator that prevents oxidation of the plating surface when the steel wire is removed from the plating bath, a cooling device that cools the steel wire coming out of the plating bath, and a plated steel wire A hot-dip galvanized steel wire manufacturing apparatus for outdoor exposure, comprising a surface processing device using mechanical means for imparting a high friction pattern on the surface and a winding device for winding the steel wire. And More specifically, in an apparatus for producing a hot-dip plated steel wire, an apparatus for supplying the plated steel wire, a plating bath apparatus for melting the plating alloy and maintaining it at a predetermined temperature, and passing the steel wire through the plating bath and taking it out When the steel wire is taken out from the plating device and the plating bath, the portion where the plated steel wire is pulled up from the plating alloy bath is purged with a mixed gas of one or more of nitrogen gas, argon gas and carbon dioxide gas Air-separation device for preventing oxidation of plating alloy bath surface and plating steel wire, water flow directly from nozzle to steel wire coming out of plating bath, or sprayed with mist-like water continuously at 250 ° C or below A cooling device for cooling, a surface processing device by mechanical means for imparting a highly frictional pattern to the surface of the plated steel wire, and a winding device for winding the steel wire are continuously arranged. Exposed outdoors for galvanized steel wire manufacturing apparatus characterized by the a.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below.
FIG. 1 is a schematic configuration diagram of a hot-dip galvanized steel wire manufacturing apparatus according to the present invention. In FIG. 1, a steel wire S to be plated is obtained by rolling a rolled steel wire having a diameter of 4 to 6 mm, which is manufactured online or offline, from a rewinding reel 1, or pure zinc plating, zinc-aluminum plating, flux treatment. Pre-plating is performed, and pretreatment is performed to form an alloy layer on the surface of the steel wire. A single line or a plurality of lines are conveyed in parallel from the pretreatment device 2 and fed to the plating line. Next, this steel wire is introduced into a hot dip galvanizing bath 4 containing a plating bath 3 maintained at a temperature of 450 to 470 ° C. and subjected to hot dip galvanizing treatment. The plating line speed at this time is about 10 to 100 m / min, and plating is performed at about 50 m / min in actual operation.
[0008]
The plated steel wire S subjected to the above-described plating treatment passes through a box-shaped air isolator 5 parallel to the longitudinal direction of the plated steel wire having a cylindrical or rectangular cross section on the plating bath exit side. The air-separation device 5 is configured to purge the plated steel wire from the plating alloy bath by purging the plating alloy bath surface and the plated steel with one or more mixed gases of nitrogen gas, argon gas and carbon dioxide gas. It is provided to prevent the oxidation of the wire, and is an indispensable constituent device in the present invention. Further, in the gas isolator 5, the mixed gas is sent from a gas supply source (not shown) at an arbitrary pressure, and blown onto the plated steel wire surface. Cool to about 430-450 ° C. Moreover, it is preferable to arrange | position the lower end part of this air isolation apparatus 5 in the state immersed in the plating bath.
[0009]
The plated steel wire S that has passed through the air separation device 5 is then guided to the cooling device 6 and cooled to a temperature of 250 ° C. or lower. As a cooling method, a water flow is directly applied from a plurality of nozzles, a water droplet in a mist state is continuously applied to a plated steel wire by a plurality of water spray nozzles or a plurality of air and water mixing nozzles. The plurality of nozzles are arranged at regular intervals at positions facing the circumference of the plated steel wire or are arranged in a staggered manner. When the galvanized alloy is continuously cooled, it undergoes transformation near 250 ° C., and when it is processed above the transformation point, cracking or peeling of the plating occurs during transformation. In order to avoid this, it is necessary to cool the plating temperature to 250 ° C. or lower.
[0010]
On the other hand, in the conventional cooling device for plated steel wire, in order to maintain the smoothness of the surface state and increase the commercial value, a relatively large and large amount of water hose-like provided in any number in the cooling device The cooling water is applied to the surface of the plated steel wire in a solidified state on the surface without interruption. For this purpose, the surface of the plated steel wire is uniformly cooled and maintained in a smooth surface state. The plated steel wire produced in this way cannot be used for applications that are exposed outdoors such as building members, revetment members, fish nets, fences and the like that require the above-described friction.
[0011]
The plated steel wire thus cooled is guided to a predetermined transport line by a turning means such as the bridal roll 7. Next, various patterns having an aesthetic appearance are imparted by the surface processing apparatus 8 using mechanical means for imparting a pattern having high friction properties. This pattern is a geometric pattern with irregularities on the surface of the steel wire, or a service mark of the manufacturer, etc., or a pattern with irregularities on the surface of the steel wire such as various marks and character marks according to the usage environment. What is necessary is just to satisfy the conditions of friction. Typically, the configuration of the surface processing apparatus 8 is such that a pair of concave / convex pattern split rolls having various patterns on the inner surface or outer surface, or a pair of concave / convex pattern rolls and the like, while giving a certain rolling reduction. It has a configuration that can be continuously engraved at a speed corresponding to the wire speed of the steel wire. In the present invention, it is simple and advantageous in terms of cost to impart a high-friction property by imparting a geometric pattern of points or lines that are continuous in the longitudinal direction, lateral direction and / or oblique direction of the steel wire. So, it was manufactured using the geometric pattern.
[0012]
The high-friction patterned hot-dip galvanized steel wire thus imparted is wound up by the take-up reel 9 to be commercialized.
The plating composition of the present invention includes zinc, zinc-alloy described in Japanese Patent No. 2732398, and Zn-Al-Mg alloy described in Japanese Patent Application No. Hei 11-302585. It can also be applied to alloy plating.
[0013]
【Example】
<Example 1>
Pure Zn plating was performed as a pre-plating on a 4 mm diameter steel wire of steel wire JIS G 3505 SWRM6. As a plating alloy, Zn containing 10% by mass of Al is dissolved, and a steel wire is passed at a conveyance speed of 50 m / min in a plating bath in which the plating alloy is dissolved at 450 ° C. A plated steel wire was manufactured via a cooling device and a surface processing device using a roll.
[0014]
Grooves were processed in advance on the roll surface, and a pattern was transferred to the surface by passing a plated steel wire between them. Rolls were prepared in which grooves were processed parallel to one direction, in which stitches were processed, in which patterns were processed. Further, a stitch-like pattern can be created by combining two grooves processed in parallel in one direction different in direction.
[0015]
About the obtained plated steel wire, the friction coefficient with the rubber which applied the fixed load was measured in the direction parallel to the longitudinal direction of the wire. Table 1 shows the measurement results. When the friction coefficient of the conventional plated steel wire as a comparative example was set to 1, the plated steel wire of the example according to the present invention showed a high frictional force.
[0016]
[Table 1]

[0017]
【The invention's effect】
As described above, the present invention is designed to have high frictional properties due to extremely simplified equipment for high-friction plated steel wire used by exposing outdoors such as building members, revetment members, fish nets, and fences. It becomes possible to mass produce hot-dip galvanized steel wires.
[Brief description of the drawings]
FIG. 1 is a diagram showing a schematic configuration of a hot-dip galvanized steel wire manufacturing apparatus according to the present invention.
FIG. 2 (a) is a conventional plated steel wire that is not subjected to surface treatment, and FIGS. 2 (b), (c), and (d) are diagrams showing an example of a patterned steel wire according to the present invention.
FIG. 3 is a diagram showing an example of a patterned roll arrangement according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Rewinding reel 2 ... Pretreatment apparatus 3 ... Plating bath 4 ... Plating tank 5 ... Air-release apparatus 6 ... Cooling apparatus 7 ... Bridal roll 8 ... Pattern imparting apparatus 9 ... Take-up reel

Claims (5)

The surface of the plated steel wire is continuously cooled to 250 ° C. or lower by directly applying a water flow from the nozzle to the plated layer surface of the hot dip galvanized steel wire or spraying mist water. then, longitudinal, transverse and / or oblique directions to continuously stamped method weathering for galvanized steel wire and forming a point or linear high friction irregularities geometric . An apparatus for carrying out the method of manufacturing a hot-dip galvanized steel wire for outdoor exposure according to claim 1, wherein the plating bath device melts the plating alloy and maintains it at a predetermined temperature, and the wire that passes the steel wire through the plating bath and takes it out Equipment, air-breaking device that prevents oxidation of the plating surface when the steel wire is taken out of the plating bath, cooling device that cools the steel wire coming out of the plating bath, and a highly frictional uneven geometric pattern on the surface of the plated steel wire A hot-dip galvanized steel wire manufacturing apparatus for outdoor exposure, characterized in that a surface processing device for imparting water and a winding device for winding a steel wire are continuously arranged. In the apparatus which implements the manufacturing method of the hot dip galvanized steel wire for outdoor exposure of Claim 1, In the apparatus which supplies a plated steel wire, The plating bath apparatus which melt | dissolves a plating alloy and hold | maintains to predetermined temperature, In a plating bath wire-passing device for taking out is passed through the steel wire, Danki device to prevent oxidation of the plated surface when retrieving steel wire from the plating bath, or applying a direct water flow from the nozzle to the steel wire coming out of the plating bath, or fog A device for continuously cooling the surface of a plated steel wire to 250 ° C. or less by spraying water in the form of a surface, a surface processing device for imparting a highly frictional uneven geometric pattern to the surface of the steel wire, and a winding for winding the steel wire An apparatus for producing hot-dip galvanized steel wire for outdoor exposure, characterized by comprising a continuous arrangement of the stripping device.   The hot-dip galvanized steel wire manufacturing apparatus for outdoor exposure according to claim 2 or 3, wherein the surface processing apparatus is a mechanical means.   The air-separation device purges the portion where the plated steel wire is lifted from the plated alloy bath with one or more of nitrogen gas, argon gas, carbon dioxide gas, and the plated alloy bath surface and the plated steel wire. The apparatus for producing a hot dip galvanized steel wire for outdoor exposure according to claim 2 or 3, characterized in that the structure prevents oxidation of the steel.

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