Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
  • B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
  • B05B12/20—Masking elements, i.e. elements defining uncoated areas on an object to be coated
  • B05B12/26—Masking elements, i.e. elements defining uncoated areas on an object to be coated for masking cavities

Definitions

• the present invention relates to a joint masking material used for protecting a hole from a surface treatment such as coating, plating, and phosphoric acid treatment.
• a method is used in which a polyvinyl chloride sol or the like is sprayed on the underside of an automobile for the purpose of noise and soundproofing and vibration proofing, and then the gel is heated to form a polyvinyl chloride sol film.
• holes such as drain holes and bolt holes are provided on the lower surface of the floor, and it is necessary to prevent the polyvinyl chloride sol from entering the holes.
• a plug-shaped masking material (1) made of, for example, a thermoplastic plastic foam is applied to the hole (3) of the member (2).
• the plug-shaped masking material (1) is scraped off with a hand key or the like as shown in FIG.
• a method of softening and shrinking and removing it from the hole (3) has been used (Japanese Patent Publication No. 48-29532).
• one plug-shaped masking material (1) is in a single-piece state, and this is picked up one by one with a finger.
• a plurality of cypress-shaped masking materials are connected in a line, and a connecting portion of the plug-shaped masking material is used as a cut-off portion.
• the present invention provides a connecting masking material having a minimum diameter in the material, the minimum diameter being 10 to 10 of the minimum diameter of the plug-like masking material.
• thermoplastic plastics such as polystyrene, polyethylene, polypropylene, polyvinyl chloride, and polyamide
• thermosetting plastics such as melamine resin, urea resin, phenol resin, and epoxy resin.
• a pitting material-mixed plastic obtained by mixing a filler such as calcium carbonate, talc, bentonite, blast furnace slag, fly ash, or the like with the above-mentioned thermoplastic plastic or ripening hardening plastic, or the above-mentioned thermoplastic plastic, Textile materials, cork, wood, and the like, in which fibers such as curable plastics and foams of the above-mentioned filler-mixed plastics, organic fibers, inorganic fibers, and pulp are bound with a synthetic resin binder or the like are used.
• a preferred material for the connection masking material of the present invention is a polystyrene foam.
• the polystyrene foam is hard and brittle, it is very easy to cut off the connecting masking material. Further, when the density of the polystyrene foam is 14 to 500 gZ ⁇ , the connection masking material can be more easily cut off.
• connection masking material of the present invention breath molding, injection molding, injection molding, expanded bead molding, expanded injection molding, and the like are used.
• connection masking material of the present invention is coated with an anti-sticking agent such as a water-soluble polymer, DFK resin, synthetic resin paint, mold release agent, silicon, wax, etc., to soften the masking material. However, it may be prevented from fusing to the mounting location.
• an anti-sticking agent such as a water-soluble polymer, DFK resin, synthetic resin paint, mold release agent, silicon, wax, etc.
• the connecting masking material is held in a hand and fitted into a hole intended for a cutting-edge plug-shaped masking material.
• the cut-off portion between the material and the next plug-shaped masking material connected to the plug-shaped masking material is cut off.
• the most advanced plug-shaped masking material is fitted into the hole, and the next plug-shaped masking material connected to the plug-shaped masking material is positioned at the forefront, and is subjected to the next object.
• the plug-shaped masking material is fitted into the hole and connected similarly. From the next plug-shaped masking material.
• the present invention there is no need to pick up the plug-shaped masking material one by one and fit it into the hole, and the plug-shaped masking material can be easily cut off at the correct position from the connecting masking material,
• the masking work can be performed extremely smoothly without any damage during transportation and handling, and the fatigue of workers is reduced, making it extremely suitable for mass production continuous processes.
• FIG. 1 is a perspective view
• FIG. 2 is an explanatory view of the dimensions of a plug-shaped masking material
• FIG. 3 is a plug-shaped masking material.
• FIG. 4 is an explanatory view of a fitted state
• FIG. 4 is an explanatory view of a surface treatment state
• FIG. 5 is an explanatory view of a softening / shrinking state of a plug-like masking material
• FIG. 6 is an explanatory view of a bolt screwing state
• FIG. FIG. 8 is a perspective view of a connection masking material of still another embodiment
• FIG. 9 is a perspective view of a connection masking material of still another embodiment
• FIG. 10 is an explanatory view of a masking state
• FIG. 11 is an explanatory view of a masking material softening and shrinking state.
• (1) is a plug-shaped masking material having a tapered short cylindrical shape and having an inverted tapered portion (1) A formed at the lower end, and a large number of plug-shaped masking materials (1) (plug-shaped masking).
• the connection part is a fold part (2), and the connection part is connected in tandem through the fold part (2) to connect masking. It constitutes the material (10).
• the minimum diameter ⁇ is the Installing section folded in the connecting masking member (10) as shown in FIG. 2 (2), if said closure shaped masking member the maximum diameter of the (1) and d 2, 0 g ⁇ d! Z dj ⁇ O.
• the masking material may be cut to a length that can be easily held by hand. For example, as shown in FIG. Fits into the hole (4) targeted in (3), and folds from the cut-off part (2) between the most advanced plug-shaped masking material (1) and the next plug-shaped masking material (1). take. In this manner, the plug-shaped masking material (1) is fitted into the hole (4), and then subjected to surface treatment to form a surface-treated film (5) as shown in FIG.
• the masking material (1) is made of a thermoplastic plastic, if it is heated to a temperature higher than the softening point of the thermoplastic, the plug-shaped masking material (1) softens and simultaneously has an internal shape.
• connection masking material (20) obtained by connecting a large number of spherical cypress-like masking materials (11) in a cascade through a cut-off portion (12) as shown in FIG.
• the plug-shaped masking material may be used for other masking if the diameter of the cut-off portion (1 and the ratio d iZ d jj of the maximum diameter d 2 is 0.1 to 0.9). Any shape force may be taken according to the shape of the hole to be formed.
• the connecting masking materials (30), (40) connected by the cut-out portions (22), (32) extending in a bar shape as shown in FIG. 9 may be provided. Since the connecting masking materials (30) and (40) have the bar-shaped extending portions (22) and (32) as described above, the plug-shaped masking materials are mutually folded (22) and (32). It is easy when breaking off through

Landscapes

• Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
• Electroplating Methods And Accessories (AREA)
• Coating Apparatus (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=12532791

Family Applications (1)

Country Status (4)

Families Citing this family (5)

Citations (3)

• 1990
  • 1990-04-10 JP JP1990038707U patent/JPH03128455U/ja active Pending
• 1991
  • 1991-04-09 EP EP19910906692 patent/EP0482202A4/en not_active Withdrawn
  • 1991-04-09 CA CA002060516A patent/CA2060516A1/en not_active Abandoned
  • 1991-04-09 WO PCT/JP1991/000468 patent/WO1991015304A1/ja not_active Application Discontinuation

Patent Citations (3)

Non-Patent Citations (1)

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