Hot melting device for powder materials

Abstract

The invention discloses a hot melting device for powder materials. The hot melting device comprises a charging system, a slurry melting device, a heating system and a discharging system, wherein a charging pipe is nested in an adjuvant charging hopper and is connected with a charging opening, a mixing chamber is arranged at the lower end of the charging opening, a spray nozzle is arranged in the mixing chamber, the mixing chamber and a hot melting plate are in penetration, heating conveying pipes are arranged at one end of an upper pressing plate and one end of a lower pressing plate and are connected with a heater, the heating system supplies a heat source into the slurry melting device through the heating conveying pipes, the discharging system is a discharging opening, the discharging opening is formed one end of the lower pressing plate, and a discharging disc is arranged at the lower end of the discharging opening. After adopting the structure, the whole technological process is simple in operation, the heating system can be used for accurately controlling the melting temperature of the powder materials through a controller, and a coating, prepared after heated powder material granules are subjected to later-stage treatment, is dense, is good in adhesive power, impact strength and toughness and high in corner coverage and has excellent resistance to chemical corrosion and electrical insulating properties.

Description

technical field [0001] The invention relates to a hot-melt equipment, in particular to a hot-melt device for performing hot-melt treatment on mixed powder to generate liquid molten slurry. Background technique [0002] At present, powder coating is a kind of solid powder without solvent. The coating is made of special resin, pigment and filler, curing agent and other additives, mixed in a certain proportion, and then prepared by hot extrusion, crushing and sieving. It needs to be heated, baked, melted and solidified before use to form a flat and bright permanent coating film to achieve the purpose of decoration and anti-corrosion. The existing melting is achieved by baking. Although the baking achieves the purpose of melting, its It must be baked according to the specified temperature and time. If the temperature is too low and the time is too short, the powder will not form a pattern, and the mechanical properties will also be greatly reduced due to incomplete curing. It is...

AI Technical Summary

Problems solved by technology

[0002] At present, powder coating is a kind of solid powder without solvent. The coating is made of special resin, pigment and filler, curing agent and other additives, mixed in a certain proportion, and then prepared by hot extrusion, crushing and sieving. It needs to be heated, baked, melted and solidified before use to form a flat and bright permanent coating film to achieve the purpose of decoration and anti-corrosion. The existing melting is achieved by baking. Although the baking achieves the purpose of melting, its It must be baked according to the specified temperature and time. If the temperature is too low and the time is too short, the powder will not form a pattern, and the mechanical properties will also be greatly reduced due to incomplete curing. It is not easy to control, and it must be tested if it is used. Use an oven Powder coatings with uniform properties cannot be obtained when temperature settings vary by more than 75°F

In some cases, even a uniform temperature distribution cannot be achieved due to technical deficiencies of the ovens

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