CN107088511A - A kind of fluorescent material application process of LED filament - Google Patents
A kind of fluorescent material application process of LED filament Download PDFInfo
- Publication number
- CN107088511A CN107088511A CN201710250014.2A CN201710250014A CN107088511A CN 107088511 A CN107088511 A CN 107088511A CN 201710250014 A CN201710250014 A CN 201710250014A CN 107088511 A CN107088511 A CN 107088511A
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- China
- Prior art keywords
- filament
- fluorescent material
- smearing
- heating
- application process
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C19/00—Apparatus specially adapted for applying particulate materials to surfaces
- B05C19/04—Apparatus specially adapted for applying particulate materials to surfaces the particulate material being projected, poured or allowed to flow onto the surface of the work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0218—Pretreatment, e.g. heating the substrate
- B05D3/0236—Pretreatment, e.g. heating the substrate with ovens
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Luminescent Compositions (AREA)
Abstract
It is an object of the invention to provide a kind of fluorescent material application process of LED filament, its filament smearing method is：(1) configuration of fluorescent material, each composition of fluorescent material and its than part be：20-25 parts of AB powder, 5-18 parts of YAG fluorescent powder, 8-10 parts of diffusant；(2) filament heating handle, first passed through before filament heating filament tube oven heating pre-add heat treatment, plus then stop 10 minutes after, carry out further by filament heating to 150-180 DEG C；(3) the brush dust smearing processing of fluorescent material, slurry reaches that the spillwag chute outflow of painting cylinder is back to agitator, forms circulation, starts to smear, reduce the thickness that single is smeared, the bondability of fluorescent material is improved, the service life of filament is improved, while adding a certain proportion of antioxidant in fluorescent material again, reduce filament corrosion, tie point resistance is reduced, LED power consumption is reduced, damage probability is reduced.
Description
Technical field
The present invention relates to the field in terms of the processing technology of LED, particularly to changing in terms of the filament processing of LED
Enter, more particularly to a kind of fluorescent material application process of LED filament.
Background technology
With the improvement of living standards, requirement of the people to normal lighting is also of a relatively high, it is also required to while illumination
Use to LED is generally more, therefore requires higher in terms of LED filament, especially filament long-time illumination in use,
Substantial amounts of heat can be produced, causes the fluorescent coating on LED filament to produce fracture and separate, causes filament normally to make
With the light efficiency of reduction LED, influence is normally used, simultaneously because producing hot gas cycle inside lampshade, then hot gas passes to temperature
On the relatively low lampshade of degree, condense into the globule and carry out oxide-coated filament connector of struggling against the corrosive influence, filament connector is caused corrosion, reduce light
According to quality, while increasing the resistance of tie point, LED power consumption is improved, increases damage probability again, service life is reduced.
Therefore it provides a kind of fluorescent material application process of LED filament, to can be by the fluorescent material in LED
Application process is improved, by repeatedly a small amount of smearing, reduces the thickness that single is smeared, and improves the bondability of fluorescent material,
Prevent heated inequality from causing coating failure and separation, improve the service life of filament, while adding certain ratio in fluorescent material again
The antioxidant of example, the globule that can be avoided and condense produces chemical reaction, reduces filament corrosion, reduces tie point resistance, drop
Low LED power consumption, reduces damage probability, the problem of just turning into those skilled in the art's urgent need to resolve.
The content of the invention
It is an object of the invention to provide a kind of fluorescent material application process of LED filament, to can be by LED
Fluorescent material application process be improved, by repeatedly a small amount of smearing, reduce the thickness that single is smeared, improve the viscous of fluorescent material
Conjunction degree, prevents heated inequality from causing coating failure and separation, improves the service life of filament, while added in fluorescent material again
A certain proportion of antioxidant, the globule that can be avoided and condense produces chemical reaction, reduces filament corrosion, reduction tie point electricity
Resistance, reduces LED power consumption, reduces damage probability.
To solve technical problem described in background technology, the present invention uses following technical scheme：
A kind of fluorescent material application process of LED filament, its filament smearing method is：
(1) configuration of fluorescent material, each composition of fluorescent material and its than part be：20-25 parts of AB powder, YAG fluorescent powder 5-
18 parts, 8-10 parts of diffusant, AB powder, YAG fluorescent powder and diffusant ratio as requested part are mixed, then added
Appropriate antioxidant, is stirred uniform；
(2) filament heating is handled, and the heating pre-add heat treatment of filament tube oven is first passed through before filament heating, during heating, is led to
Cross slow heating filament is preheated to 70-80 DEG C, then stop 10 minutes after, carry out further by filament heating extremely
150—180℃；
(3) the brush dust smearing processing of fluorescent material, cone, painting are evacuated to by fluorescent material application device by slurry through the pump housing
Cylinder, slurry reaches that the spillwag chute outflow of painting cylinder is back to agitator, forms circulation, starts to smear, used by repeatedly a small amount of mode
Fluorescent material is smeared filament, and the smearing number of times when smearing is set to 3-5 times.
Preferably, the content of the antioxidant in described step 1 is 8-10%, is added in the fluorescent material of LED filament
A certain proportion of antioxidant, can be in lampshade internal condensation sweating, it is to avoid make silver-colored light powder and air by medium of the globule
In oxygen occur oxidation reaction, prevent fluorescent coating from turning yellow and corrosion, it is to avoid to produce substantial amounts of heat because resistance is excessive, it is right
LED filament causes to damage.
Preferably, firing rate when described step 2 is heated to filament is 10-12 DEG C/min, by filament
Firing rate be defined, it is possible to increase the degree of heat of filament, reduce filament inside and outside temperature difference, prevent due in filament
Outer temperature stress is different, improves LED filament coating bonding strength, prevents LED filament from coating failure and disengaging occur when heated.
Preferably, uniform smearing is carried out repeatedly by circulating reflux when described step 3 is smeared filament brush dust, and returned
Uniform nitrogen gas are passed through when flow coat is smeared, and the speed that is passed through of nitrogen is 8-10m/s, because when smearing, temperature is higher, is led to
Cross and be nearby passed through nitrogen, neighbouring oxygen can be discharged, prevent oxidation reaction, prevent filament from turning yellow, improve filament
Quality, improves the illumination quality of LED filament.
Preferably, described step 3 is smeared using repeatedly a small amount of when smearing filament brush dust, and between smearing twice when
Between at intervals of 30-35s, to smear interval time be controlled and ensure that bonding strength while heat is shed, improve viscous
Close intensity.
The beneficial effects of the invention are as follows：
1), by repeatedly a small amount of smearing, reduce the thickness that single is smeared, improve the bondability of fluorescent material, prevent by
Hot inequality causes coating failure and separation, improves the service life of filament.
2), while adding a certain proportion of antioxidant in fluorescent material again, the globule generationization that can be avoided and condense
Reaction is learned, filament corrosion is reduced, tie point resistance is reduced, LED power consumption is reduced, damage probability is reduced.
Embodiment
In order that those skilled in the art more fully understands technical scheme, the present invention will be made into one below
What is walked is discussed in detail.
A kind of fluorescent material application process of LED filament, its filament smearing method is：
(1) configuration of fluorescent material, each composition of fluorescent material and its than part be：25 parts of AB powder, 7 parts of YAG fluorescent powder, diffusion
8 parts of agent, AB powder, YAG fluorescent powder and diffusant ratio as requested part are mixed, and are then added appropriate anti-oxidant
Agent, is stirred uniform；
(2) filament heating is handled, and the heating pre-add heat treatment of filament tube oven is first passed through before filament heating, during heating, is led to
Cross slow heating and filament is preheated to 80 DEG C, after then stopping 10 minutes, carrying out further by filament heating to 170 DEG C；
(3) the brush dust smearing processing of fluorescent material, cone, painting are evacuated to by fluorescent material application device by slurry through the pump housing
Cylinder, slurry reaches that the spillwag chute outflow of painting cylinder is back to agitator, forms circulation, starts to smear, used by repeatedly a small amount of mode
Fluorescent material is smeared filament, and the smearing number of times when smearing is set to 5 times.
Further, the content of the antioxidant in described step 1 is 10%, is added in the fluorescent material of LED filament
A certain proportion of antioxidant, can be in lampshade internal condensation sweating, it is to avoid make silver-colored light powder and air by medium of the globule
In oxygen occur oxidation reaction, prevent fluorescent coating from turning yellow and corrosion, it is to avoid to produce substantial amounts of heat because resistance is excessive, it is right
LED filament causes to damage.
Further, firing rate when described step 2 is heated to filament is 12 DEG C/min, by filament
Firing rate is defined, it is possible to increase the degree of heat of filament, the temperature difference reduced inside and outside filament, is prevented due to inside and outside filament
Temperature stress is different, improves LED filament coating bonding strength, prevents LED filament from coating failure and disengaging occur when heated.
Further, smeared when described step 3 is smeared filament brush dust by the way that circulating reflux progress is repeatedly uniform, and
Backflow is passed through uniform nitrogen gas when smearing, and the speed that is passed through of nitrogen is 10m/s, because when smearing, temperature is higher, is led to
Cross and be nearby passed through nitrogen, neighbouring oxygen can be discharged, prevent oxidation reaction, prevent filament from turning yellow, improve filament
Quality, improves the illumination quality of LED filament.
Further, smeared when described step 3 is smeared filament brush dust using repeatedly a small amount of, and twice between smearing
Time interval is 35s, and heat sheds while being controlled to smearing interval time and ensure that bonding strength, improves bonding
Intensity.
Some one exemplary embodiments of the present invention are only described by way of explanation above, undoubtedly, for ability
The those of ordinary skill in domain, without departing from the spirit and scope of the present invention, can be with a variety of modes to institute
The embodiment of description is modified.Therefore, foregoing description is inherently illustrative, and should not be construed as will to right of the present invention
Ask the limitation of protection domain.
Claims (5)
1. a kind of fluorescent material application process of LED filament, it is characterised in that its filament smearing method is：
(1) configuration of fluorescent material, each composition of fluorescent material and its than part be：20-25 parts of AB powder, 5-18 parts of YAG fluorescent powder,
8-10 parts of diffusant, AB powder, YAG fluorescent powder and diffusant ratio as requested part are mixed, then added appropriate
Antioxidant, is stirred uniform；
(2) filament heating is handled, and the heating pre-add heat treatment of filament tube oven is first passed through before filament heating, during heating, by slow
Filament is preheated to 70-80 DEG C by slow heating, after then stopping 10 minutes, carry out further by filament heating to 150-
180℃；
(3) the brush dust smearing processing of fluorescent material, is evacuated to cone through the pump housing by slurry by fluorescent material application device, applies cylinder, powder
Slurry reaches that the spillwag chute outflow of painting cylinder is back to agitator, forms circulation, starts to smear, pass through repeatedly a small amount of mode fluorescent material
Filament is smeared, the smearing number of times when smearing is set to 3-5 times.
2. a kind of fluorescent material application process of LED filament according to claim 1, it is characterised in that described step 1
In antioxidant content be 8-10%.
3. a kind of fluorescent material application process of LED filament according to claim 1, it is characterised in that described step 2
Firing rate when being heated to filament is 10-12 DEG C/min.
4. a kind of fluorescent material application process of LED filament according to claim 1, it is characterised in that described step 3
Uniform smearing is carried out repeatedly by circulating reflux when smearing filament brush dust, and uniform nitrogen gas is passed through when flowing back and smearing
Body, and the speed that is passed through of nitrogen is 8-10m/s.
5. a kind of fluorescent material application process of LED filament according to claim 1, it is characterised in that described step 3
Smeared when smearing filament brush dust using repeatedly a small amount of, and the time interval between smearing is 30-35s twice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710250014.2A CN107088511A (en) | 2017-04-17 | 2017-04-17 | A kind of fluorescent material application process of LED filament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710250014.2A CN107088511A (en) | 2017-04-17 | 2017-04-17 | A kind of fluorescent material application process of LED filament |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107088511A true CN107088511A (en) | 2017-08-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710250014.2A Pending CN107088511A (en) | 2017-04-17 | 2017-04-17 | A kind of fluorescent material application process of LED filament |
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| CN (1) | CN107088511A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101159305A (en) * | 2007-11-09 | 2008-04-09 | 严钱军 | High power light-emitting diode fluorescent powder coating process |
| US20110148279A1 (en) * | 2009-12-21 | 2011-06-23 | Bingqian Li | White led phosphor film and its manufacturing method |
| CN102120213A (en) * | 2011-01-10 | 2011-07-13 | 惠州市华阳多媒体电子有限公司 | LED fluorescent powder spraying process |
| CN105226161A (en) * | 2014-05-27 | 2016-01-06 | 昆山瑞胜达光电有限公司 | A kind of LED silk transparent pipe packaging technology |
| CN106000845A (en) * | 2016-06-03 | 2016-10-12 | 安徽世林照明股份有限公司 | Fluorescent powder coating process for glass tubes |
| CN106015991A (en) * | 2016-07-20 | 2016-10-12 | 山东晶泰星光电科技有限公司 | Power source built-in bulb lamp using 2pi LED lamp filaments |
-
2017
- 2017-04-17 CN CN201710250014.2A patent/CN107088511A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101159305A (en) * | 2007-11-09 | 2008-04-09 | 严钱军 | High power light-emitting diode fluorescent powder coating process |
| US20110148279A1 (en) * | 2009-12-21 | 2011-06-23 | Bingqian Li | White led phosphor film and its manufacturing method |
| CN102120213A (en) * | 2011-01-10 | 2011-07-13 | 惠州市华阳多媒体电子有限公司 | LED fluorescent powder spraying process |
| CN105226161A (en) * | 2014-05-27 | 2016-01-06 | 昆山瑞胜达光电有限公司 | A kind of LED silk transparent pipe packaging technology |
| CN106000845A (en) * | 2016-06-03 | 2016-10-12 | 安徽世林照明股份有限公司 | Fluorescent powder coating process for glass tubes |
| CN106015991A (en) * | 2016-07-20 | 2016-10-12 | 山东晶泰星光电科技有限公司 | Power source built-in bulb lamp using 2pi LED lamp filaments |
Non-Patent Citations (1)
| Title |
|---|
| 杨成德: "《涂料开发与试验》", 28 February 2015, 北京科学技术文献出版社 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170825 |