JP4974451B2 - Metal powder coating method - Google Patents

Description

  The present invention relates to a metal powder coating method and a metal powder coating member capable of producing a unique brightness of metal powder at low cost. In particular, the present invention relates to a metal powder coating method and a metal powder coating member capable of producing a unique surface shape, color tone, brightness and the like by the combination of the metal powders and the mixing ratio of these metal powders. It is. Further, the present invention provides a metal powder coating method and a metal powder coating member capable of producing a wide variety of surfaces by reflection from the metal powder itself, positively provided irregularities, positively polished surfaces, etc. It is about.

  Conventionally, powder coating for coating the body of an automobile has a beautiful surface and color by aligning the particle size to several tens of microns and spraying from a spray nozzle. For example, the powder coating described in JP-A-8-231892 contains 0.1 to 10% by weight of a conductive pigment, and at the same time, a bright pigment is added and mixed to form a metal, wood, glass, Used for ceramic, plastic and inorganic building materials.

In addition, the wall covering method described in Japanese Patent Application Laid-Open No. 2003-172009 includes a primer coating process in which a cement-based adjustment paint is applied to a base wall material, and a design undulation is formed on the surface until it is cured. An intermediate coating step in which a first ceramic coating material in which colored aggregate is mixed into a resin emulsion is applied to the entire surface of the base adjustment coating material; a second ceramic coating material having a different tone or a silicon resin system, a urethane resin system, An overcoating step of partially applying an acrylic resin-based or fluororesin-based colored coating material to the surface of the first ceramic coating material.
JP-A-8-231892 JP 2003-172009 A

  In the conventional powder coating, it is necessary to prepare a metal powder having a particle size of several tens of microns. Not only is the metal powder coating itself expensive, but also the coating device is not bobbed by the nozzle tip. It was an expensive painting method because of many ideas. In addition, the conventional example in which the synthetic resin is applied to the base wall material can form a design undulation due to the color member and the synthetic resin, but the color tone, gloss, or brightness, etc., compared to the metal powder. Quite inferior.

  In order to solve the problems as described above, the present invention can produce metal powders having different particle sizes at low cost, without using a special coating device, and has an unprecedented color tone and gloss. Alternatively, it is an object of the present invention to provide a metal powder coating method and a metal powder coating member capable of producing brightness and the like.

(First invention)
The metal powder coating method of the first invention is to apply a mixed member of metal powder and a synthetic resin member on a base material, and is composed of a mixture having a particle size of 3 mm to 0.01 mm and different sizes. An application step of applying a synthetic resin member around at least one kind of the metal powder and using a mortar sprayer so as to cover the base material , and then the metal powder and the synthetic resin And a drying step of drying the mixed member with the member.

(Second invention)
The metal powder coating method of the second invention is to apply a mixed member of metal powder and a synthetic resin member on a base material, and is composed of a mixture having a particle size of 3 mm to 0.01 mm and different sizes. An application step of applying a synthetic resin member around at least one kind of the metal powder and using a mortar sprayer so as to cover the base material; and the metal powder and the synthetic resin member; It comprises at least an embossing step for patterning the mixed member and a drying step for drying the embossed member.

(Third invention)
The metal powder coating method of the third invention is to apply a mixed member of a metal powder and a synthetic resin member on a base material, and is composed of a mixture having a particle size of 3 mm to 0.01 mm and different sizes. An application step of applying a synthetic resin member around at least one kind of the metal powder and using a mortar sprayer so as to cover the base material; and the metal powder and the synthetic resin member; It comprises at least a drying step for drying the mixed member and a polishing step for polishing the dried mixed member.

(Fourth invention)
The metal powder coating method of the fourth invention is a method of applying a mixed member of metal powder and a synthetic resin member on a base material, and comprising at least a mixture having a particle size of 3 mm to 0.01 mm , A synthetic resin member is attached around one type of the metal powder, and a mortar spraying machine is used to apply so as to cover the base material , and the metal powder and the synthetic resin member. a mixing member to embossing give a pattern step, a drying step of drying the embossed been mixed member, and at least comprising a polishing step of polishing a mixing member in the drying.

(Fifth invention)
A metal powder coating method according to a fifth aspect of the present invention is the coating step according to any one of the first to fourth aspects of the present invention , wherein the mortar spraying machine changes the moving speed in at least one of the front , rear, left and right directions. It is characterized by changing the pattern.

(Sixth invention)
The metal powder coating method of the sixth invention is characterized in that, in the first to fifth inventions, a protective member is applied onto the dried or polished mixed member.

(Seventh invention)
In the metal powder coating method of the seventh invention, the base material of the first to sixth inventions is at least one of concrete members, concrete blocks, cement boards, synthetic resin members, wood, plywood, unglazed ceramics, etc. It is characterized by that.

(Eighth invention)
The metal powder coating method of the eighth invention is characterized in that the synthetic resin member of the first to seventh inventions is at least one of an acrylic resin, an epoxy resin, and a cationic resin.

(9th invention)
The coating step in the metal powder coating method of the ninth invention is characterized in that the nozzle of the mortar sprayer of the first to eighth inventions is automatically moved by a robot and applied to a base material having a complicated shape. To do.

  According to the present invention, when the metal powders having different particle sizes are applied to the base material, the strength of the base material is increased, and at the same time, the pattern becomes a pattern and the aesthetic feeling is improved. In addition, the metal powder coating method of the present invention exhibits a finishing effect completely different from that of conventional electrolysis / plating, etc., and the unique color tone and brightness of the metal powder itself or a mixture of metal powders. appear.

  According to the present invention, since it is not necessary to make the particle size of the metal powder uniform, the metal powder and the metal powder coating apparatus are each inexpensive, and the finish also has a completely different aesthetic feeling from the conventional one. It will have. The metal powder having a size of 3 mm to 0.01 mm according to the present invention is applied to the base material to form fine irregularities on the surface, and the reflection of light by the irregularities is different, and the color tone of the metal powder is different. In addition, the surface has a beautiful shine.

  According to the present invention, when applying metal powder, an arbitrary pattern can be easily produced by the way of embossing or polishing, so that it is inexpensive to meet the purpose of use of the member coated with metal powder. It can be set as the member which has a beautiful aesthetic sense.

  According to the present invention, by changing the type or mixing ratio of the mixed metal, a unique color tone, gloss, brightness, etc. can be obtained, and a flat surface having the necessary smoothness can be obtained by polishing.

  According to the present invention, a metal powder coating member in which the thickness or pattern of the metal powder is changed by moving one of the base member and the coating nozzle in the front-rear and left-right directions at an arbitrary speed.

  According to the present invention, as the metal powder, for example, adopting at least one kind of simple metals such as iron, copper, aluminum, nickel, chromium, magnesium, gold or platinum, or alloys of these metals, And by oxidizing these metals, not only can the color unique to the metal powder be produced, but also the mixing ratio of these can produce different colors, not only give infinite kinds of colors, Unique colors not found in nature can also be produced.

  According to the present invention, a concrete member, a concrete block, a cement member, a synthetic resin member, wood, plywood, unglazed earthenware, etc. are used as a base material, and an acrylic resin, an epoxy resin, a cation are used as a synthetic resin as an adhesive. By using at least one type of resin, it becomes a binder or adhesive between the base material and the metal powder, and the synthetic resin member is kneaded into the metal powder so that the surface to be coated is uniform. Adhere strongly.

  According to the present invention, since the particle size of the metal powder is increased to 3 mm to 0.01 mm, a ready-made mortar spraying machine can be used, and various brightness and colors of different sizes can be used. A feeling can be given.

  According to the present invention, the metal powder can be applied along the base material having a complicated shape, so that the interior decoration ceiling, wall, floor, door, etc., in addition to the interior and exterior walls and floor decoration of the building, etc. It can be applied to various shapes such as parts, furniture, packages of household appliances, lighting fixtures, bodies of vehicles, ships, sailing ships, large structures, sculptures, arts, etc.

  According to the present invention, the metal powder coating member applied to the base material in a state where the synthetic resin member is mixed with at least one kind of metal powder of 3 mm to 0.01 mm is formed from a flat plate material to a complicated shape. In addition, the color tone, brightness, and gloss can be improved by the relatively large particle size of the metal powder.

(First invention)
In the metal powder coating method of the first invention, the base material is covered by applying a mixture of metal powder having a particle diameter of 3 mm to 0.01 mm on the base material. In the coating step, a synthetic resin member is mixed with at least one kind of the metal powder. The synthetic resin member adheres around the metal powder having a particle diameter of 3 mm to 0.01 mm, thereby adhering the metal powder to each other and also to the base material. The coating process may be a spraying process as necessary.

  Thereafter, in the drying step, the synthetic resin member is dried, whereby the metal powder and the synthetic resin member are more firmly bonded to the base material. When the metal powder having particle sizes of different sizes is applied to the base material, the strength of the base material is increased and at the same time a pattern is improved to improve the aesthetic sense. In the metal powder coating method of the present invention, the unique color tone and brightness of metal powder (single or mixed) appear in a completely different finishing state from conventional electrolysis and plating.

  Conventional powder coating using metal powder of several microns to several tens of microns is expensive in equipment for coating. In contrast, the metal powder coating method of the present invention is an inexpensive coating method because the cost can be reduced from 1/3 to 1/10 of the conventional one without necessarily using a special device. The finish also has a completely different aesthetic feeling from the conventional one.

(Second invention)
The metal powder coating method of the second invention is different in that a stamping process is inserted between the coating process and the drying process in the first invention. In the embossing step, a pattern having an arbitrary shape can be applied to the mixture of the metal powder and the synthetic resin member before drying. Since the pattern merely creates a pattern of the mold in the embossing machine, it can be an inexpensive member having a pattern suitable for the purpose of use of the member coated with the metal powder.

(Third invention)
The metal powder coating method of the third invention is different from the first invention and the second invention in that a polishing step is performed after the drying step in the first invention. In the polishing step, the surface of the mixture of the dried metal powder and the synthetic resin member can have a unique color tone, luster and shine depending on the type or mixing ratio of the mixed metal, and can provide a necessary surface. .

(Fourth invention)
The metal powder coating method of the fourth invention is different from the first to third inventions in that an embossing process is inserted between the coating process and the drying process in the third invention. The embossing step adds a pattern having an arbitrary shape to the mixture of the metal powder and the synthetic resin member before drying, and at the same time, depending on the type or mixing ratio of the mixed metal and the pattern on the surface of the mixture, Unique design, color, gloss, or shine can be achieved.

  The metal powder of the first invention to the fourth invention is, for example, at least one kind of a simple substance such as iron, copper, aluminum, nickel, chromium, magnesium, gold or platinum, or an alloy made of these metals. This is typical. However, the metal powder of the present invention may contain a metal other than the above metals. The base material on which the metal powder is sprayed can not only give a color peculiar to the metal powder but also give a different color tone depending on the mixing ratio or the degree of rust.

  For example, in the case of iron, the metal powder coating is close to red when the degree of rust is advanced, and can be changed to black when the degree of rust is small. That is, the metal powder coating method of the present invention can produce not only infinite kinds of colors but also colors that do not exist in nature. Also, precious metals such as gold or platinum are suitable for painting sculptures and other art works.

(Fifth invention)
In the metal powder coating method of the fifth invention, in the coating process of the first to fourth inventions, one of the base material and the nozzle is arbitrarily changed in moving speed in at least one of the front, rear, left and right directions, The pattern of the powder can be changed. The pattern may be suitable for the purpose of use, place of use, etc. of the base material.

(Sixth invention)
In the metal powder coating method of the sixth invention, the surface is protected by, for example, applying a protective member made of a lacquer or a urethane-based member on the mixed member produced by the first to fifth inventions.

(Seventh invention)
In the metal powder coating method of the seventh invention, the base material of the first to sixth inventions is at least one of a concrete member, concrete block, cement member, synthetic resin member, wood, plywood, unglazed earthenware, and the like. That is, the metal powder coating method of the seventh invention can coat metal powder as long as it is a member other than glass, porcelain, glaze ceramic, gas, and fluid.

(Eighth invention)
In the metal powder coating method of the eighth invention, the synthetic resin member of the first invention to the seventh invention is at least one of acrylic resin, epoxy resin, and cationic resin, and the binder or adhesion of the metal powder. It is an agent. The synthetic resin member is kneaded into the metal powder and strongly adheres to the surface to be coated without unevenness.

In the metal powder coating method of the present invention, since the particle size of the metal powder is as large as 3 mm to 0.01 mm, spraying can be performed using a ready-made mortar sprayer. In particular, since the metal powder pulverizes the metal and passes through 3 mm and 0.01 mm meshes, the metal powder having a size of 3 mm to 0.01 mm is mixed, but the metal powders having different sizes are mixed. Can produce various colors, sparkles, or atmospheres.

( 9th invention)
In the metal powder coating method of the ninth invention, in the coating process of the eighth invention, the nozzle of the spraying machine is held by the robot and can be applied while automatically moving along the base material of a complicated shape. . In addition to interior and exterior walls and floor decorations of buildings, the present invention includes interior decoration ceilings, walls, floors, doors and other parts, furniture, home appliances and other packages, lighting equipment, vehicles, ships, sailing boats, and other large bodies. It can be applied to various shapes such as structures, sculptures and arts.

Metallic powder coating member of the present invention may Rukoto sprayed on the base material with at least one 3mm to the metal powder consisting of 0.01mm synthetic resin member is mixed. The metal powder coating member can be applied to an object having a complicated shape from a flat plate material, and can improve color tone, brightness, gloss and the like due to a relatively large particle size of the metal powder.

The metal powder coating member of the present invention is coated with metal powder, and the metal powder is formed as a pattern on the surface of the base material. Since the metal powder of the present invention is much larger than the particle size of normal powder coating and has different sizes, the reflection of the light irradiated to each particle is different, resulting in a beautiful pattern. Appear.

In the metal powder coating member of the present invention, the base material can be at least one of a metal member surface, a concrete member surface, a synthetic resin member surface, a wood surface, a plywood surface, and an unglazed ceramic surface. The present invention is not particularly limited as long as it is a member to which the synthetic resin member can be bonded, other than glass and glazes, and any member may be used.

The metal powder coating member of the present invention is a member having an arbitrary shape including a complicated material, whereas the base material is composed of a planar material.

  FIG. 1 is a schematic configuration diagram for explaining the concept of a metal powder coating apparatus according to a first embodiment of the present invention. In FIG. 1, a metal powder coating system 11 includes a metal powder coating device 12, a conveyor 13, a base material 14, a stamping machine 15, and a dryer 16. The embossing machine 15 can be provided as necessary. In addition to the apparatus shown in FIG. 1, a polishing machine or the like can be added. Further, the metal powder coating apparatus 12 is provided with a control device (not shown).

  The metal powder coating apparatus 12 includes a sprayer 121 equipped with a compressor, a hopper 122 for receiving metal powder and a synthetic resin member (not shown), and a nozzle for spraying a mixture of the metal powder and the synthetic resin member. 123, a rail 124 that moves the sprayer 121 in the left-right direction in FIG. 1, and a pedestal 125 that supports the rail 124, the sprayer 121, and the like in a movable state.

  The shape of the nozzle 123 may be substantially the same as or narrower than the width of the base material 14. The nozzle 123 has a structure capable of spraying metal powder of 3 mm to 0.01 mm described later. As the metal powder coating device 12, for example, a device for mortar coating can be used. The conveyor 13 has a base material 14 placed at a predetermined location, and sequentially moves from the right to the left in FIG.

  Further, the base material 14 can be moved not only in the left direction as described above but also in the opposite right direction by the conveyor 13. Further, the sprayer 121 can move on the rail 124 in the width direction of the base material 14. Therefore, the nozzle 123 is arranged at an arbitrary selected position of the base material 14 under the control of a control device (not shown), and injects a desired amount of a mixture of metal powder and synthetic resin member. .

  The mixture of the metal powder and the synthetic resin member injected from the nozzle 123 can form a pattern having an arbitrary thickness under the control of the control device. The metal powder and the synthetic resin member sprayed on the base material 14 can be further produced with different patterns by the stamping machine 15 as necessary. Thereafter, the mixture of the metal powder and the synthetic resin member formed on the base material 14 provided with the pattern is firmly bonded to the base material 14 by being dried by the dryer 16. Furthermore, the surface of the metal powder and the synthetic resin member bonded to the base material 14 can be polished by a polishing machine as necessary.

  FIG. 2 is a schematic view for explaining a metal powder coating member according to an embodiment of the present invention. In FIG. 2, the metal powder coating member 21 includes a base material 211, a metal powder 212 applied to the top of the base material 211, and a synthetic resin member 213 that enters the periphery of the metal powder 212. Has been. When the synthetic resin member 213 is mixed with the metal powder 212 and the hopper 122, the synthetic resin member 213 can easily enter the periphery of the metal powder 212 by inserting an increase / decrease material as necessary. I have to.

  As a result of various experiments, the metal powder 212 has a particle size of 3 mm to 0.01 mm in view of ease of painting and aesthetic effects due to light reflection. The size of the particle size is, for example, not only a mortar sprayer, but also a mixture of metal powders of different sizes, so that the reflection of light is not constant and has a unique color tone. Demonstrate shine. Further, the metal powder is made of iron, copper, aluminum, nickel, chromium, magnesium, gold, platinum or the like, an alloy of these metals, or at least one kind or a mixture, thereby giving a color that does not exist in nature. be able to.

  Furthermore, the metal powder can have a change in color tone depending on the degree of rusting. For example, iron can be changed from red to black depending on the degree of rusting, so that an infinite color can be realized. When the iron rust has a desired color, it is mixed with the synthetic resin member 213, sprayed onto the base material 211, and then dried to the state shown in FIG. Will remain. The rust is also possible in copper and aluminum.

  For the metal powder 212, a metal material is pulverized, passed through a 3 mm mesh sieve, and then passed through a 0.01 mm mesh sieve so that only a particle size of 3 mm to 0.01 mm is selected. Can do.

  The base material 211 can be applied to anything other than glass, porcelain, glazed ceramics, gas, fluid, for example, concrete members, cement members, plastic materials, wood, plywood, unglazed ceramics, and the like. Further, the synthetic resin member 213 can be strongly adhered to the surface to be coated without unevenness by kneading an acrylic resin, an epoxy resin, a cationic resin, or the like. The coated surface is then polished to further increase the brightness of the metal powder.

  FIG. 3 is a schematic configuration diagram for explaining the outline of the metal powder coating apparatus according to the second embodiment of the present invention. In FIG. 3, the metal powder coating apparatus is composed of a spraying machine 31, a hopper 32, a moving table 33, a caster 34, a hose 35, a nozzle 36, a compressor, a control device, etc., not shown. ing. Since the metal powder coating apparatus according to the second embodiment is movable, it can be applied to a complicated shape or a vertically provided one such as a wall. The same thing.

  The embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the matters described in the claims. Is possible. Although the spraying machine described in the present embodiment is not described in detail, a machine for mortar coating can be used as it is. Moreover, a well-known or well-known thing can be utilized for the conveyor in this example, a gantry, an embosser, and a dryer.

  The metal powder coating method of the present invention can be used in combination with a conventional coating method using a roller or a trowel, in addition to using the spraying machine. Can be processed at interior construction sites.

It is a schematic block diagram for demonstrating the concept of the metal powder coating apparatus which is 1st Example of this invention. Example 1 It is the schematic for demonstrating the metal powder coating member which is an Example of this invention. It is a schematic block diagram for demonstrating the outline of the metal powder coating apparatus which is 2nd Example of this invention. (Example 2)

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 ... Metal powder coating system 12 ... Metal powder coating apparatus 121 ... Spraying machine 122 ... Hopper 123 ... Nozzle 124 ... Rail 125 ... Stand 13 ... Conveyor 14 ... Base material 15 ... Embossing machine 16 ... Dryer 21 ... Metal powder coating member 211 ... Base material 212 ... Metal powder 213 ... Synthetic resin member 31 ...・ Blowing machine 32 ... Hopper 33 ... Moving platform 34 ... Caster 35 ... Hose 36 ... Nozzle

Claims (9)

In the metal powder coating method of coating the mixed member of the metal powder and the synthetic resin member on the base material,
By attaching a synthetic resin member around at least one kind of the metal powder composed of a mixture having a particle size of 3 mm to 0.01 mm, and using a mortar sprayer, the base material is A coating process for coating so as to cover;
Thereafter, a drying step of drying the mixed member of the metal powder and the synthetic resin member,
A metal powder coating method comprising: In the metal powder coating method of coating the mixed member of the metal powder and the synthetic resin member on the base material,
By attaching a synthetic resin member around at least one kind of the metal powder composed of a mixture having a particle size of 3 mm to 0.01 mm, and using a mortar sprayer, the base material is A coating process for coating so as to cover;
An embossing step of applying a pattern to the mixed member of the metal powder and the synthetic resin member;
A drying step of drying the embossed member;
A metal powder coating method comprising: In the metal powder coating method of coating the mixed member of the metal powder and the synthetic resin member on the base material,
By attaching a synthetic resin member around at least one kind of the metal powder composed of a mixture having a particle size of 3 mm to 0.01 mm, and using a mortar sprayer, the base material is A coating process for coating so as to cover;
A drying step of drying the mixed member of the metal powder and the synthetic resin member;
A polishing step of polishing the dried mixed member;
A metal powder coating method comprising: In the metal powder coating method of coating the mixed member of the metal powder and the synthetic resin member on the base material,
By attaching a synthetic resin member around at least one kind of the metal powder composed of a mixture having a particle size of 3 mm to 0.01 mm, and using a mortar sprayer, the base material is A coating process for coating so as to cover;
An embossing step of applying a pattern to the mixed member of the metal powder and the synthetic resin member;
A drying step of drying the embossed mixing member;
A polishing step of polishing the dried mixed member;
A metal powder coating method comprising:   5. The pattern of the metal powder is changed in the coating step by changing the moving speed of at least one of the mortar sprayer in the front-rear and left-right directions. The metal powder coating method described in item 1.   6. The metal powder coating method according to claim 1, wherein a protective member is applied on the dried or polished mixed member.   7. The base material according to claim 1, wherein the base material is at least one of a concrete member, a concrete block, a cement member, a synthetic resin member, wood, plywood, unglazed earthenware, and the like. The metal powder coating method described.   The metal powder coating method according to any one of claims 1 to 7, wherein the synthetic resin member is at least one of an acrylic resin, an epoxy resin, and a cationic resin.   9. The metal powder coating method according to claim 8, wherein in the coating step, the nozzle of the spraying machine is automatically moved by a robot so as to coat the base material having a complicated shape.

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