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Spray gun, spray coating device, and spray coating method

A technology of spray guns and nozzles, which is applied in the direction of spraying devices, liquid spraying devices, and devices for coating liquid on surfaces, etc. It can solve the problems of reduced spraying amount, complex flow path structure, and resin adhesion, so as to improve physical properties and suppress pores. Effect of occurrence and inhibition of resin adhesion

Inactive Publication Date: 2013-01-02
DYFLEX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, in the above-mentioned spray gun, since the supply pressure of the raw material liquid is low, the amount of spraying is reduced, so it takes time to apply
In addition, since the gas supply pressure is high, the raw material liquid is scattered during the spraying process, and the resin is easily adhered to other than the target site, and unevenness is easily formed on the surface of the low-density resin layer.
[0012] In addition, the above-mentioned spray gun has a built-in agitator, and the structure of the flow path is complicated, so the raw material liquid tends to remain inside, and whenever the spraying of the raw material liquid is stopped, the inside needs to be cleaned with an organic solvent, making construction difficult.
In addition, there are many components and the structure is complicated, so there is a problem that maintenance is not easy.

Method used

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  • Spray gun, spray coating device, and spray coating method
  • Spray gun, spray coating device, and spray coating method
  • Spray gun, spray coating device, and spray coating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4）

[0144] Use with Figure 1 ~ Figure 4 The spray application device 30 of the shown spray gun 1 forms a resin layer made of polyurethane on a base layer made of a plastic plate.

[0145] A main agent containing an isocyanate-based terminal prepolymer composed of MDI and polyether polyol is used as the first liquid agent 41, and a polyol containing DETDA (diethyltoluenediamine) is used as the second liquid agent 42 Department of curing agent.

[0146] Air is used as gas 44 .

[0147] Table 1 shows the results of measuring the physical properties of the resin layer. The measuring method of each physical property shall comply with JISA6021.

[0148] The following method was used for the evaluation of the thermal insulation performance.

[0149] Using the resin sheet produced by the spraying construction device 30 equipped with the spray gun 1, the opening of the box made of expanded styrene was blocked, and the resin sheet was irradiated with infrared rays using an infrared lam...

Embodiment 5）

[0151] As the gas 44 , carbon dioxide (CO 2 ) was used instead of air to form a resin layer. Other test conditions are based on Examples 1-4.

[0152] Table 1 shows the results of measuring the physical properties of the resin layer.

Embodiment 6、7）

[0164] Use with Figure 1 ~ Figure 4 The spray application device 30 of the shown spray gun 1 forms a resin layer made of polyurea.

[0165] A main agent containing an isocyanate component is used as the first liquid agent 41 , and a curing agent containing an amine compound is used as the second liquid agent 42 .

[0166] Air is used as gas 44 . Other test conditions are based on Examples 1-4.

[0167] Table 2 shows the results of measuring the physical properties of the resin layer.

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PUM

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Abstract

A spray gun is provided with a nozzle section for mixing gas into a material liquid and spraying the material liquid. The inner space of the nozzle section has an introduction path through which the material liquid is introduced, an open section which has a flow path expanded to a size greater than that of the introduction path and which sprays the material liquid in a fine particle-like form, a reduced-diameter section which has a flow path contracted to a size smaller than that of the open section and which re-collects the fine particle-like material liquid, and a spray opening section which sprays the material liquid to the outside. The nozzle section has formed therein a gas introduction hole for introducing gas to a base end side portion of the open section.

Description

technical field [0001] The present invention relates to a spray gun for forming a resin layer such as a water-repellent layer that functions as an underlayer performance buffer layer and an underlayer treatment layer by spraying using a mixed curable resin and a moisture-curable resin, a spraying application device using the same, and spraying construction method. [0002] this application claims priority based on Japanese Patent Application No. 2010-022290 for which it applied in Japan on February 3, 2010, The content is used here. Background technique [0003] In the waterproof construction of roofs, balconies, corridors, etc. of building structures and the covering construction of structures (playground equipment, etc.) curable resin. [0004] During construction, use a spray gun to spray the raw material liquid on the construction object to form a resin layer. [0005] For the resin layer, functions corresponding to unevenness, unevenness, steps, gaps, etc. of the bas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B7/04B05D7/00E04F21/08
CPCB05B7/0483B05B7/0416B05B7/0408B05B7/2497B05D7/00E04F21/08
Inventor 中山俊昭杉山明宏矢野哲祥
Owner DYFLEX CORP
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