CN102814266A - Electrostatic powder spraying process for treating tool surfaces - Google Patents
Electrostatic powder spraying process for treating tool surfaces Download PDFInfo
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- CN102814266A CN102814266A CN 201110158143 CN201110158143A CN102814266A CN 102814266 A CN102814266 A CN 102814266A CN 201110158143 CN201110158143 CN 201110158143 CN 201110158143 A CN201110158143 A CN 201110158143A CN 102814266 A CN102814266 A CN 102814266A
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- tool
- electrostatic powder
- tool surfaces
- instrument
- powder coating
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Abstract
The invention relates to an electrostatic powder spraying process for treating tool surfaces. The process includes decontaminating the surface of a tool; suspending the tool in a powder spraying chamber, and electrostatic powder spraying is performed on the tool; standing the tool for 2 to 3 minutes, sending the tool into an oven to raise the temperature to 180 DEG C to 190 DEG C, keeping the temperature for 25 to 30 minutes, and cooling the tool and taking the tool out of the oven. The electrostatic powder spraying process for treating tool surfaces has the advantages that the operation is simple, and the working environment is sanitary and pollution free; the oxidation resistance of the surface of the tool after processing is high, and the surface is scratch resistant, friction resistant, fire resistant, corrosion resistant and rust resistant; the tool after processing is easy to store and transport; the appearance of the tool surface is attractive; and the like.
Description
Technical field
The present invention relates to a kind of process of surface treatment of instrument, is a kind of electrostatic powder coating process that is used for tool surfaces specifically.
Background technology
Present domestic explosion-proof instrument does not generally carry out surface treatment, direct marketing after polishing.The general employing of the surface treatment of carbon steel forging tools sprayed paint, and turns blue, methods such as blackout or plating.Spraying paint of surface of the work generally carried out under field conditions (factors),, make workpiece in use easily because of rubbing, receive external force collision to fall to coat with lacquer each other, thereby influence product appearance, shorten the antirust cycle because the adhesive force of paint is low; Through the workpiece that turns blue, turns black and handle; Can play antirust effect though (be generally 2-3 month) in a short time; But still can get rusty because of workpiece surface is prone to take place oxidation; And environment is abominable during this technology practical operation, turns blue, hair blackening liquid will be prepared specially, and operating personnel need possess certain professional knowledge; For electroplating technology, have also that stoste will be prepared specially, operating personnel need possess certain professional knowledge, problems such as severe operational environment also exist coating to be prone to into the phenomenon that piece peels off through friction, operation simultaneously.
Summary of the invention
The technical problem that the present invention will solve is exactly that the prior art severe operational environment, the raw material that exist need special preparation, complicated operation, and the tool after treatment surface exists and is prone to lacquer, is prone to peel off, is prone to oxidation, is prone to get rusty and defectives such as unsuitable long preservation, transportation.
For solving the problems of the technologies described above, the present invention can adopt following two kinds of technical schemes:
Technical scheme 1 is used for the surface treatment to the carbon steel forging tools, comprises the steps:
1) tool surfaces being carried out decontamination handles;
2) instrument is suspended in the powder spraying chamber, instrument is carried out electrostatic powder coating;
3) after tranquillization 2-3 divides kind instrument is sent into baker insulation 25-30 minute of heating after 180-190 ℃, cooling is come out of the stove then.
Technical scheme 2 is used for the surface treatment to explosion-proof instrument, and the difference of itself and technical scheme 1 is also to comprise step 4) after the step 3): metalworking or polishing step.
The present invention has following advantage:
1, simple to operate, the relative health of working environment, pollution-free;
2, the oxidation resistance on tool after treatment surface is strong, damage resistant, wear-resisting wiping, fire-resistant, anti-corrosion, antirust;
3, tool after treatment is convenient to long-term storage, transportation;
4, increased the aesthetics of tool surfaces.
The specific embodiment
Below in conjunction with the specific embodiment the present invention is described further
Embodiment 1, is used for carbon steel forging tools surface-treated electrostatic powder coating process
At first to instrument polish, sandblasting pretreatment, eliminate spots such as tool surfaces oxide layer and greasy dirt, then workpiece is hung in the powder spraying chamber on the rotatable device, the distance between the workpiece keeps 250-300mm.
Through the air pressure principle; With uncharged green insulator in the powder tube---thermosetting epoxy resin mixed type powder is static electrification after electrostatic generator (0-100KV) is handled; Static value is selected 40 ± 5KV; With the manual spray gun that is connected in electrostatic generator and powder tube the mixed type powder of static electrification is sprayed onto surface of the work and absorption equably, the powder that is scattered recycles through retracting device.The indoor whirligig of rotary spraying in spraying guarantees that the workpiece that is sprayed can be uniformly sprayed; The powder membrane thickness of surface of the work is 0.4 ± 0.1mm, will spray good workpiece after tranquillization 2-3 minute and hang on the coaster of baker and get into baker then.According to the workpiece size, selecting to heat is incubated 25-30 minute (specifically seeing table 1) after 180-190 ℃, and cooling is come out of the stove then, and surface of the work is green.
Table 1:
| Tool length | Instrument thickness | The temperature of heating | Temperature retention time |
| Below the 300mm | Below the 10mm | 180℃ | 25min |
| 300-500mm | 10-20mm | 185℃ | 28min |
| More than the 500mm | More than the 20mm | 190℃ | 30min |
Embodiment 2, are used for explosion-proof instrument surface-treated electrostatic powder coating process
The surface treatment electrostatic powder coating process of explosion-proof instrument and the surface treatment electrostatic powder coating process and the associated process conditions of carbon steel forging tools are basic identical; Difference is that epoxy polyester mixed type powder is for red; Need again through metalworking or polishing after the instrument cooling; Making instrument contact-making surface in actual use is the metal true qualities, to be unlikely the explosion-proof performance of the instrument of influence itself.Opening portion and plane, spanner both sides like open-end wrench all should be polished, and the double offset ring spanner internal diameter needs through metalworking, and the both sides end needs through polishing etc.
Claims (6)
1. be used for the electrostatic powder coating process that tool surfaces is handled, it is characterized in that comprising the steps:
1) tool surfaces being carried out decontamination handles;
2) instrument is suspended in the powder spraying chamber, instrument is carried out electrostatic powder coating;
3) after tranquillization 2-3 divides kind instrument is sent into baker insulation 25-30 minute of heating after 180-190 ℃, cooling is come out of the stove then.
2. as claimed in claim 1ly be used for the electrostatic powder coating process that tool surfaces is handled, it is characterized in that also comprising after the step 3) step 4): metalworking or polishing step.
According to claim 1 or claim 2 be used for the electrostatic powder coating process that tool surfaces is handled; It is characterized in that instrument should hang in the powder spraying chamber on the rotatable device; The indoor whirligig of rotary spraying in spraying guarantees that the instrument that is sprayed can be uniformly sprayed tool surfaces.
According to claim 1 or claim 2 be used for the electrostatic powder coating process that tool surfaces is handled, it is characterized in that the distance that is suspended between the instrument in the powder spraying chamber should keep the 250-300 millimeter.
According to claim 1 or claim 2 be used for the electrostatic powder coating process that tool surfaces is handled, it is characterized in that the used material of electrostatic powder coating is a heat curing-type epoxy polyester mixed type powder.
According to claim 1 or claim 2 be used for the electrostatic powder coating process that tool surfaces is handled, it is characterized in that the membrane thickness of instrument behind electrostatic powder coating is 0.4 ± 0.1 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110158143 CN102814266A (en) | 2011-06-10 | 2011-06-10 | Electrostatic powder spraying process for treating tool surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110158143 CN102814266A (en) | 2011-06-10 | 2011-06-10 | Electrostatic powder spraying process for treating tool surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102814266A true CN102814266A (en) | 2012-12-12 |
Family
ID=47298920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110158143 Pending CN102814266A (en) | 2011-06-10 | 2011-06-10 | Electrostatic powder spraying process for treating tool surfaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102814266A (en) |
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2011
- 2011-06-10 CN CN 201110158143 patent/CN102814266A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121212 |