CN102688844A - Electrostatic spraying technique for medium density fiberboard - Google Patents
Electrostatic spraying technique for medium density fiberboard Download PDFInfo
- Publication number
- CN102688844A CN102688844A CN2012101703804A CN201210170380A CN102688844A CN 102688844 A CN102688844 A CN 102688844A CN 2012101703804 A CN2012101703804 A CN 2012101703804A CN 201210170380 A CN201210170380 A CN 201210170380A CN 102688844 A CN102688844 A CN 102688844A
- Authority
- CN
- China
- Prior art keywords
- electrostatic spraying
- degree
- cabin
- temperature
- minute
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses an electrostatic spraying technique for a medium density fiberboard. The technical process comprises the steps of supplying the medium density fiberboard, preheating, electrostatic spraying and solidification, wherein the solidification comprises four steps of warming, liquation, leveling and solidification. The medium density fiberboard processed by the electrostatic spraying technique has the characteristics that the spraying is formed at one step, the thickness of dusting sprayed on the spraying surface is controllable and even; water is not used during the spraying process, so that waste of water is not caused; the dusting is not mixed with formaldehyde, toluene and other poisonous substances, so that not only is the spraying quality ensured, but also the environment-friendly effect is good, and the fiberboard is not easy to split due to high coating strength; and the electrostatic spraying technique has wide social benefit and market demands.
Description
Technical field
The MDF electrostatic painting process that uses in a kind of furniture manufacturing industry MDF parts production process.
Background technology
MDF is the widely used manufacturing materials of furniture manufacturing industry, has characteristics such as material source is abundant, saving original raw material, moulding is easy, internal stress is little.
MDF need carry out surface treatment to it in making the furniture process, to sign specious, the durable demand of plate Hepplewhite in satisfied the using.
MDF is carried out surface treatment, mainly take electrostatic painting process, under higher temperature conditions,, make it reach the state that surface coverage is decorated paint film MDF, satisfy the purpose of surperficial beautifying and decorating and firm loss prevention through electrostatic spraying.
Electrostatic painting process needs object to be processed, and itself possesses electric conductivity.The quality of electric conductivity and whether even is the key of decision electrostatic spraying quality quality.
In order to make MDF add man-hour carrying out electrostatic spraying, can have electric conductivity, add conducting powder in the fine aborning plate process that has.Have at the beginning of carrying out electrostatic spraying processing, at the MDF surface sprinkling.
Add conducting powder in the fine aborning plate process, complex process, cost is high.At the beginning of carrying out electrostatic spraying processing, at the MDF surface sprinkling, not only waste time and energy, and be difficult to accomplish evenly directly influence coating quality.
For this reason, though can satisfying basically, former MDF electrostatic painting process makes furniture with MDF, the requirement of surperficial landscaping treatment; But; Because of above reason or the like, exist the surface spraying inhomogeneous, the sheet material easy of crack; Plate case hardness, abrasion resistance and dry heat resistance index can not satisfy problems such as MDF furniture instructions for use, harm the raising of MDF furniture quality and further developing of MDF furniture.
Summary of the invention
The objective of the invention is design through the brand-new electrostatic painting process of a kind of MDF; The MDF that make to use the present invention handle, have face coat evenly, sheet material do not ftracture, case hardness is high, wearability dry heat resistance moisture-proof and corrosion resistance all increase substantially.
Technical process of the present invention is following:
Upper plate is hung on preadmission row electrostatic spraying surface-treated MDF the initial end of electrostatic spraying production line;---preheating, preheat temperature is the 70-120 degree in the preheating cabin, be 2-5 minute preheating time;---electrostatic spraying, the spray gun that is used for electrostatic spraying in the electrostatic spraying cabin are 2-8, the journey rectangular arranged; Electrostatic spraying voltage is 40-80KVA, and electrostatic spraying air pressure is 0.03mP-0.08mP, and the order number that dusts is the 80-200 order; Spray time 10-20 second, reaching MDF, to hang powder thickness be 10-20m;---solidify, it is 4 stages that curing is divided into:
1, the temperature rise period; Solidify and to use the heating of infrared ray heating lamp in the cabin, heating gradient does, in 1-2 minute, makes the temperature cabin in, rises to 130 from 40 degree and spends-160 and spend; Solidification temperature is 130 degree-160 degree;
2, fusion; Coexist and solidify in the cabin, will solidify temperature with the infrared ray heating lamp in the cabin in and be heated to 140 and spend-220 and spend, spend under-220 degree conditions fusion 1-3 minute 140;
3, levelling; Levelling still carries out in solidifying the cabin, and the levelling temperature is 150 degree-220 degree, and flow time is 1-2 minute;
4, solidify; Solidification temperature is the 100-220 degree, and be 4-6 minute hardening time;---; Cooling is introduced the curing cabin with circulated air, and be 1-5 minute cool time, and temperature is reduced to the 60-100 degree;---blanking receipts plate.
When using the present invention that MDF is carried out surperficial spray treatment, heated in the curing cabin that hangs with pending MDF, can the moisture that have in the MDF be forced to the MDF surface through using infrared lamp.Because water content is equally distributed in the MDF,, make the MDF surface have uniform conductive property so heated the surface that the moisture of forcing out can be evenly distributed in MDF by infrared ray.Thereby solved the electrostatic spraying surface and need have the problem of homogeneous conductivity.
The design of the temperature in other technical process, time and related procedure can solve spraying effect effectively, hangs powder thickness, a series of problems such as case hardness and wear-resisting, moisture-proof.
Therefore, the MDF that uses the present invention to handle has the spraying one-shot forming and puts in place, and sprayed surface is hung the powder controllable thickness, evenly; Water not in the spraying process is not so produce waste water; Any harmful substances such as admixture formaldehyde, toluene not in dusting can guarantee coating quality, and environment protecting is good; Characteristics such as the high sheet material of strength of coating is not easy to crack have the social benefit and the market demand widely.
The specific embodiment
Lift an instance is described further the present invention at present.
Embodiment: with processing wood shavings shape MDF is example, and the embodiment technical process is following:
Upper plate is hung on preadmission row electrostatic spraying surface-treated wood shavings shape MDF the initial end of electrostatic spraying production line;---preheating, preheat temperature is 85 degree in the preheating cabin, be 2 minutes preheating time;---electrostatic spraying, the spray gun that is used for electrostatic spraying in the electrostatic spraying cabin is 6, the journey rectangular arranged, electrostatic spraying voltage is 60KVA, and electrostatic spraying air pressure is 0.05mP, and the order number that dusts is 80 orders, spray time 10 seconds, reaching MDF extension powder thickness is 13 m;---solidify, it is 4 stages that curing is divided into:
1, the temperature rise period; Solidify and to use the heating of infrared ray heating lamp in the cabin, heating gradient does, in 1 minute, makes the temperature cabin in, spends from 40 to rise to 180 and spend;
2, fusion; Coexist and solidify in the cabin, will solidify in the cabin temperature with the infrared ray heating lamp and be heated to 180 and spend fusion 1.5 minutes;
3, levelling; Levelling still carries out in solidifying the cabin, and the levelling temperature is 160 degree, and flow time is 1 minute;
4, solidify; Solidification temperature is 175 degree, and the time is 3 minutes,---cooling, circulated air is introduced the curing cabin, be 5 minutes cool time, temperature is reduced to 60 degree;---blanking receipts plate.
Claims (1)
1. MDF electrostatic painting process, it is characterized in that: this technical process is following:
Upper plate is hung on preadmission row electrostatic spraying surface-treated MDF the initial end of electrostatic spraying production line;---preheating, preheat temperature is the 70-120 degree in the preheating cabin, be 2-5 minute preheating time;---electrostatic spraying, the spray gun that is used for electrostatic spraying in the electrostatic spraying cabin are 2-8, the journey rectangular arranged; Electrostatic spraying voltage is 40-80KVA, and electrostatic spraying air pressure is 0.03mP-0.08mP, and the order number that dusts is the 80-200 order; Spray time 10-20 second, reaching MDF, to hang powder thickness be 10-20m;---solidify, it is 4 stages that curing is divided into:
1. temperature rise period; Solidify and to use the heating of infrared ray heating lamp in the cabin, heating gradient does, in 1-2 minute, makes the temperature cabin in, rises to 130 from 40 degree and spends-160 and spend; Solidification temperature is 130 degree-160 degree;
2. fusion; Coexist and solidify in the cabin, will solidify temperature with the infrared ray heating lamp in the cabin in and be heated to 140 and spend-220 and spend, spend under-220 degree conditions fusion 1-3 minute 140;
3. levelling; Levelling still carries out in solidifying the cabin, and the levelling temperature is 150 degree-220 degree, and flow time is 1-2 minute;
4. solidify; Solidification temperature is the 100-220 degree, and be 4-6 minute hardening time;---; Cooling is introduced the curing cabin with circulated air, and be 1-5 minute cool time, and temperature is reduced to the 60-100 degree;---blanking receipts plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101703804A CN102688844A (en) | 2012-05-29 | 2012-05-29 | Electrostatic spraying technique for medium density fiberboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101703804A CN102688844A (en) | 2012-05-29 | 2012-05-29 | Electrostatic spraying technique for medium density fiberboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102688844A true CN102688844A (en) | 2012-09-26 |
Family
ID=46854675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101703804A Pending CN102688844A (en) | 2012-05-29 | 2012-05-29 | Electrostatic spraying technique for medium density fiberboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102688844A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107670860A (en) * | 2016-08-01 | 2018-02-09 | 苏州考斯丹五金制品有限公司 | MDF plate surface electrostatic powder spraying automatic production lines |
-
2012
- 2012-05-29 CN CN2012101703804A patent/CN102688844A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107670860A (en) * | 2016-08-01 | 2018-02-09 | 苏州考斯丹五金制品有限公司 | MDF plate surface electrostatic powder spraying automatic production lines |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101879502B (en) | Process for spraying three-dimensional wood grain | |
| CN104492670A (en) | Medium density fiberboard powder spraying process | |
| CN104169234A (en) | Glass sheet with an enamel-based coatin | |
| CN104588301A (en) | Powder coating method for surface of bamboo and wood material | |
| CN102935423A (en) | Metal surface preservative treatment method | |
| EP0933140A1 (en) | Power coating of wood-based products | |
| CN102825939A (en) | Manufacturing method of ultra-large plate glass pattern and processing equipment thereof | |
| CN108043697A (en) | Coat wood skin and preparation method thereof | |
| CN102688844A (en) | Electrostatic spraying technique for medium density fiberboard | |
| CN104073032A (en) | Surface protection technique of hot-stamped metal product | |
| CN105271806B (en) | A kind of construction technology of glass pane surface spray coating powder paint | |
| CN104551565A (en) | Manufacturing method of thin steel plate pot | |
| CN103737775A (en) | Shower-tray casting process of surface of spar | |
| CN106583207A (en) | Active paint spraying method for household door | |
| CN102205768A (en) | Glazing technology for flat sheet material | |
| CN206043693U (en) | A kind of new umbrella shaft | |
| CN208177800U (en) | It is a kind of to catch up with water installations for water paint | |
| CN202290466U (en) | UV (Ultra Violet) photocuring dip-coating device | |
| CN109332113A (en) | Automotive outer decorative board Powder Electrostatic Coating Technology | |
| CN107931036A (en) | Magnetic core surface is contactless powder coating process | |
| CN107983609A (en) | A kind of preparation method of UV printings wood plastic product | |
| CN103934186A (en) | Plastic dipping technology of steel wire guardrail | |
| CN110540798A (en) | Spray paint for injection molding and spraying process thereof | |
| CN107696352A (en) | A kind of preparation method of fiber reinforced plastic mold | |
| CN106118463A (en) | A kind of high-quality heat-resisting coating and preparation thereof and application process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120926 |