CN102489443A - Sealing paint making technology for wood composite door - Google Patents

Abstract

The invention relates to a sealing paint making technology for a wood composite door; the sealing paint making technology mainly comprises the following operating steps of: (1) coarse grinding; (2) manually painting a sealing priming paint; (3) coarse grinding; (4) spraying a priming paint; (5) fine grinding; (6) filling up lacquer putty; (7) locally fine grinding; (8) spraying the priming paint; (9) fine grinding; and (10) spraying finishing paint: firstly spraying a colored paint and then spraying a varnish. The number of priming paint spraying can be increased on the basis of the number in the operation process according to different requirements. A paint film obtained in the operation process has good quality, uniform color and lustre and a smooth surface. The whole flow is simple in operation; and higher production efficiency can be obtained.

Description

A kind of sealing paint production process for solid wood composite door

(1) Technical field

The invention relates to a process method of solid wood composite door sealing paint.

(2) Background technology

Because of its high quality and low price, stable structure and rich shapes, solid wood composite doors have increased their market share year by year. However, due to the different technical levels of manufacturers, the product quality is also uneven. Among them, paint quality problems are also common. When the enterprise is in production, it lacks a complete set of operating procedures, so the paint is prone to serious defects such as air bubbles, pinholes, orange peel, and bottom bite after spraying. It not only affects the production cycle of the product, but also increases the cost of paint.

In the production of solid wood composite doors, designing a simple, efficient and standardized operation process has a positive effect on improving product quality and reducing production costs.

(3) Contents of the invention

The invention provides a sealing paint process method for solid wood composite doors. The method has high operability and high production efficiency, and the produced solid wood composite door sealing paint film has good quality.

The technical scheme of the invention is realized by the following methods.

The sealing paint process method of the described solid wood composite door mainly comprises the following steps:

(1) Coarse grinding: use 180 mesh sandpaper to remove wood burrs and floating dust on the surface of solid wood veneer;

(2) Manual brushing of the primer: manually brush the primer on the surface of the roughly ground door leaf;

(3) Coarse grinding: After the primer is completely dry, grind it with 180-grit sandpaper to obtain a relatively smooth surface quality;

(4) Spraying primer: remove the floating dust on the surface of the door leaf, and spray the primer on the door leaf;

(5) Fine grinding: After the primer is completely dry, use 240 mesh sandpaper for fine grinding;

(6) Putty filling: After fine grinding, remove the floating dust, and use putty to fill up the nail holes and other depressions on the surface of the door leaf;

(7) Partial fine grinding: After the putty is completely dry, use 240 mesh sandpaper to finely grind the door leaf part;

(8) Primer spraying: On the premise of keeping the surface of the door leaf clean, spray the primer again;

(9) Fine grinding: After the primer is completely dry, carry out fine grinding operation;

(10) Topcoat spraying: first spray the color paint, and then spray the varnish.

In order to ensure the sanding quality during the entire grinding process, 180-grit sandpaper is used for rough grinding, and 240-grit sandpaper is used for fine grinding. Generally, fine sanding after the fourth coat of primer can use higher-grit sandpaper.

In order not to cause some quality defects, it is necessary to wait for the paint to dry thoroughly before sanding and the next paint operation. The selected primer and topcoat must be matched, otherwise there may be serious quality problems such as "biting the bottom". According to different needs, the number of primer spraying can be increased accordingly, and the principle of thinner spraying thickness and more spraying times should be followed.

(4) Description of drawings

Fig. 1 is a process flow diagram of an embodiment of the present invention.

(5) Specific implementation methods

Below by embodiment the present invention will be further described.

The sealing paint process method of the described solid wood composite door comprises the steps:

(1) Coarse grinding: use 180 mesh sandpaper to remove wood burrs and floating dust on the surface of solid wood veneer;

(2) Manual brushing of the primer: manually brush the primer on the surface of the roughly ground door leaf;

(3) Coarse grinding: After the primer is completely dry, grind it with 180-grit sandpaper to obtain a relatively smooth surface quality;

(4) Spray primer: remove the floating dust on the surface of the door leaf, and spray the primer on the door leaf;

(5) Fine grinding: After the primer is completely dry, use 240 mesh sandpaper for fine grinding;

(6) Putty filling: After fine grinding, remove the floating dust, and use putty to fill up the nail holes and other depressions on the surface of the door leaf;

(7) Partial fine grinding: After the putty is completely dry, use 240 mesh sandpaper to finely grind the door leaf part;

(8) Primer spraying: On the premise of keeping the surface of the door leaf clean, spray the primer again;

(9) Fine grinding: After the primer is completely dry, carry out fine grinding operation;

(10) Topcoat spraying: first spray the color paint, and then spray the varnish.

The invention is described through the embodiments, but it does not constitute a limitation to the invention. With reference to the description of the invention, other changes to the disclosed embodiments are easily conceivable by those skilled in the art. Such changes should belong to the invention within the scope of the claims.

Claims (6)

1. the seal coat manufacture craft of a solid wood composite door, its characteristic mainly is may further comprise the steps:

(1) corase grind: beat plates of solid wood surface wolline thorn and surperficial floating dust with 180 order sand paper;

(2) manual brushing bottom closing paint: at the manual brushing bottom closing paint of the door leaf surface of roughly grinding;

(3) corase grind: treat after the priming paint bone dry, polish, obtain a comparatively smooth surface quality with 180 order sand paper;

(4) spraying priming paint: remove the door leaf surface floating dust, door leaf is carried out priming paint spraying operation;

(5) fine grinding: after treating the priming paint bone dry, carry out fine grinding with 240 order sand paper;

(6) mend putty: after the fine grinding, remove floating dust, recess such as door leaf surface hole for nailing are filled and led up with putty;

(7) local fine grinding: treat that putty parches, fine grinding is carried out in the door leaf part with 240 order sand paper;

(8) priming paint spraying: keep carrying out the priming paint spraying once more under the clean prerequisite of door leaf surface;

(9) fine grinding: treat that priming paint parches, carry out the fine grinding operation;

(10) finish paint spraying: spray colored paint, lacquer varnish then earlier.

2. the seal coat manufacture craft of a kind of solid wood composite door according to claim 1 is characterized in that, described solid wood composite door surface is with the plates of solid wood facing.

3. the seal coat manufacture craft of a kind of solid wood composite door according to claim 1 is characterized in that, the sand paper of different meshes is adopted in the corase grind fine grinding, and it is better that the sand of gained is cut quality, and the surface loses obvious sand trace.

4. the seal coat manufacture craft of a kind of solid wood composite door according to claim 1 is characterized in that, priming paint concentration will suit, and excessive concentration is dry too fast, is easy to generate pore.

5. the seal coat manufacture craft of a kind of solid wood composite door according to claim 1 is characterized in that, the thickness that at every turn sprays paint all has certain requirement, can not be blocked up, otherwise be easy to generate common deficiencies such as some slow curings, bubble.

6. the seal coat manufacture craft of a kind of solid wood composite door according to claim 1 is characterized in that, priming paint spraying number of times can suitably increase according to product specification, and common have two sides, four ends, two sides, five ends even a two sides, six ends.

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