CN103664142A - Ceramic tube of high pressure sodium lamp and production method thereof - Google Patents
Ceramic tube of high pressure sodium lamp and production method thereof Download PDFInfo
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- CN103664142A CN103664142A CN201210351503.4A CN201210351503A CN103664142A CN 103664142 A CN103664142 A CN 103664142A CN 201210351503 A CN201210351503 A CN 201210351503A CN 103664142 A CN103664142 A CN 103664142A
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Abstract
The invention discloses a ceramic tube of a high pressure sodium lamp and a production method thereof, belonging to the technical field of lamp production. The ceramic tube is produced by mixing, pelleting and injection moulding aluminum oxide, organic filler, a lubricant and a surfactant which are dosed in a certain proportion. The ceramic tube disclosed by the invention has the advantages that the production efficiency can be greatly improved and is doubled compared with that of the original process, the geometric dimensions of the products are fully consistent, the raw materials are saved by over 15%, the energy consumption is reduced by about 10%, many steps are cancelled, and the ceramic tube is simple and convenient to operate and use and free from environmental pollution. Meanwhile, the product quality is greatly improved. The product is good consistency, uniform in grain and strong in resistance to corrosion, and the total resistance to corrosion is over 97%. The high pressure sodium lamp produced is high in light efficiency and long in service life.
Description
Technical field
The present invention relates to a kind of high-pressure mercury lamp vitrified pipe and production method thereof, belong to light fixture production technical field.
Background technology
High-pressure mercury lamp is a kind of high-strength gas discharge bulb, during its discharge stability, in lamp, the partial pressure of sodium vapor reaches 106Pa, during use, send golden white light, have that luminous efficiency is high, little power consumption, life-span are long, mist transmitting performance lures by force and not the advantages such as worm, are therefore widely used in road, motorway, airport, harbour, dock, station, square, street intersection, industrial and mining enterprises, park, garden illumination and plant growing.High colour developing high-pressure mercury lamp is mainly used in the illumination of gymnasium, exhibition hall, public place of entertainment, department store and hotels and other places.
The major parts of high-pressure mercury lamp comprises electric arc tube, vitrified pipe, wick glass bulb and lamp holder, wherein, the vitrified pipe of prior art be select that polycrystalline alumina ceramic powder is dry through mixed powder, spraying, the operation such as hydrostatic pressing, biscuiting, high temperature sintering and cutting makes.The method disadvantage is: 1, cost is high, and material loss is more than 15%, and mist projection granulating equipment heating power is more than 90 kilowatts; 2, Ball-milling Time is more than 20 hours; 3, after moulding the geometrical dimension of base substrate to be difficult to control consistence poor.
Summary of the invention
The object of the invention is that the cost of prior art is high, Ball-milling Time long in order to make up, the unmanageable defect of base substrate size after moulding, provide a kind of production method of high-pressure mercury lamp vitrified pipe of injection moulding to solve this problem.
High-pressure mercury lamp vitrified pipe, is grouped into by the one-tenth of following proportioning:
Aluminum oxide;
Magnesium oxide, its consumption is alumina weight 0.001 ~ 0.03%;
Polymer carrier, its consumption is alumina weight 1 ~ 10%;
Lubricant, its consumption is alumina weight 3 ~ 15%;
Tensio-active agent, its consumption is alumina weight 1 ~ 3%;
Wherein, the purity of described aluminum oxide is not less than 99.99%, and the purity of described lubricant is analytical pure.
In the present invention, described aluminum oxide is polycrystal alumina.
In the present invention, described polymer carrier is at least one in polyethylene, polypropylene, polycarbonate.
In the present invention, described lubricant is at least one in paraffin, clorafin.
In the present invention, described tensio-active agent is at least one in oleic acid, stearic acid, glycerine.
In the present invention, described polyethylene is high density polyethylene(HDPE), because high density polyethylene(HDPE) has good electrical property, particularly dielectric strength is high.
The production method of high-pressure mercury lamp vitrified pipe of the present invention, comprises the steps:
A, mixing, puts into lubricant, polymer carrier in the mixing roll of temperature adjustment to 150 ~ 250 ℃ and melts, and adds magnesium oxide, then adds the mixing 7 ~ 15min of aluminum oxide, then adds the mixing 15 ~ 30min of tensio-active agent, makes slip;
B, granulation, be cooled to room temperature by the slip obtaining in A step, drops in tablets press and be ground into the particle that particle diameter is 3 ~ 5mm;
C, injection moulding, put into the pellet obtaining in B step in injection moulding machine, at 150 ~ 300 ℃, plastifies into fluid, then described fluid is made a bet and is injected in vitrified pipe mould at the pressure of 50 ~ 150MPa, pressurize 5 ~ 15s, be finally cooled to 30 ~ 50 ℃ after the demoulding.
In the present invention, in described C step, the mode of injection is reciprocating screw type injection, the advantages such as plasticizing is even because this injection system has, injection pressure loss is little, compact construction.
The invention has the advantages that: can significantly enhance productivity, compare and be doubled with former technique, product geometrical dimension is in full accord, save material more than 15%, Energy Intensity Reduction 10% left and right, has omitted a lot of operations, operate easy to use, non-environmental-pollution.The larger quality product that improved of while, this good product consistency uniform crystal particles, resistance to corrosion is strong, and total transmitance is more than 97%.The high-pressure mercury lamp light efficiency produced is high, long service life.
Embodiment
Below in conjunction with embodiment, the invention will be further described, but protection scope of the present invention is not only confined to embodiment.
In the present invention, the purity of selected aluminum oxide must be not less than 99.99%.
Embodiment 1
A, mixing, puts into the analytical pure paraffin of 3kg, 1kg high density polyethylene(HDPE) in the mixing roll of temperature adjustment to 150 ℃ and melts, and adds 1g magnesium oxide, then adds the mixing 7min of 100kg aluminum oxide, then adds the mixing 15min of 1kg stearic acid, makes slip;
B, granulation, be cooled to room temperature by the slip obtaining in A step, and dropping into and in tablets press, being ground into particle diameter is 3 particle;
C, injection moulding, the pellet obtaining in B step is put in injection moulding machine, at 150 ℃, plastified into fluid, then described fluid is injected in vitrified pipe mould in the mode of reciprocating screw type injection under the pressure of 50MPa, pressurize 5s, be finally cooled to 30 ℃ after the demoulding.
Embodiment 2
A, mixing, puts into 5kg analytical pure clorafin, 2kg polypropylene in the mixing roll of temperature adjustment to 180 ℃ and melts, and adds 1g magnesium oxide, then adds the mixing 9min of 1000kg aluminum oxide, then adds the mixing 18min of 20kg oleic acid, makes slip;
B, granulation, be cooled to room temperature by the slip obtaining in A step, drops in tablets press and be ground into the particle that particle diameter is 3mm;
C, injection moulding, the pellet obtaining in B step is put in injection moulding machine, at 170 ℃, plastified into fluid, then described fluid is injected in vitrified pipe mould in the mode of reciprocating screw type injection under the pressure of 80MPa, pressurize 6s, be finally cooled to 40 ℃ after the demoulding.
Embodiment 3
A, mixing, 2.5kg analytical pure paraffin, 2.5kg analytical pure clorafin, 3kg polycarbonate are put in the mixing roll of temperature adjustment to 190 ℃ and melted, add 5g magnesium oxide, then add the mixing 10min of 100kg aluminum oxide, add again the mixing 20min of 2.5kg glycerine, make slip;
B, granulation, be cooled to room temperature by the slip obtaining in A step, drops in tablets press and be ground into the particle that particle diameter is 4mm;
C, injection moulding, the pellet obtaining in B step is put in injection moulding machine, at 200 ℃, plastified into fluid, then described fluid is injected in vitrified pipe mould in the mode of reciprocating screw type injection under the pressure of 100MPa, pressurize 10s, be finally cooled to 45 ℃ after the demoulding.
Embodiment 4
A, mixing, 6kg paraffin, 5kg polypropylene, 5kg high density polyethylene(HDPE) are put in the mixing roll of temperature adjustment to 220 ℃ and melted, add 15g magnesium oxide, then add the mixing 12min of 100kg aluminum oxide, add again the mixing 15 ~ 30min of 3kg oleic acid, make slip;
B, granulation, be cooled to room temperature by the slip obtaining in A step, drops in tablets press and be ground into the particle that particle diameter is 3mm;
C, injection moulding, the pellet obtaining in B step is put in injection moulding machine, at 230 ℃, plastified into fluid, then described fluid is injected in vitrified pipe mould in the mode of reciprocating screw type injection under the pressure of 120MPa, pressurize 12s, be finally cooled to 50 ℃ after the demoulding.
Embodiment 5
A, mixing, by 3kg paraffin, 7kg clorafin, 2kg polycarbonate, 8kg high density polyethylene(HDPE) are put in the mixing roll of temperature adjustment to 230 ℃ and are melted, add 1g magnesium oxide, then add the mixing 15min of 100kg aluminum oxide, add again the glycerine of 1.5kg and the mixing 30min of the oleic acid of 1.5kg, make slip;
B, granulation, be cooled to room temperature by the slip obtaining in A step, drops in tablets press and be ground into the particle that particle diameter is 5mm;
C, injection moulding, the pellet obtaining in B step is put in injection moulding machine, at 270 ℃, plastified into fluid, then described fluid is injected in vitrified pipe mould in the mode of reciprocating screw type injection under the pressure of 140MPa, pressurize 15s, be finally cooled to 35 ℃ after the demoulding.
Embodiment 6
A, mixing, 4kg paraffin, 7kg polycarbonate, 3kg polypropylene are put in the mixing roll of temperature adjustment to 250 ℃ and melted, add 25g magnesium oxide, then add the mixing 15min of 100kg aluminum oxide, add again 1kg stearic acid, 1kg oleic acid, the mixing 25min of 1kg glycerine, make slip;
B, granulation, be cooled to room temperature by the slip obtaining in A step, drops in tablets press and be ground into the particle that particle diameter is 3mm;
C, injection moulding, the pellet obtaining in B step is put in injection moulding machine, at 280 ℃, plastified into fluid, then described fluid is injected in vitrified pipe mould in the mode of reciprocating screw type injection under the pressure of 130MPa, pressurize 10s, be finally cooled to 40 ℃ after the demoulding.
Embodiment 7
A, mixing, 15kg paraffin, 3kg polypropylene, 3kg polycarbonate, 4kg high density polyethylene(HDPE) are put in the mixing roll of temperature adjustment to 250 ℃ and melted, add 1g magnesium oxide, then add the mixing 15min of 100kg aluminum oxide, add again the mixing 15 ~ 30min of 3kg oleic acid, make slip;
B, granulation, be cooled to room temperature by the slip obtaining in A step, drops in tablets press and be ground into the particle that particle diameter is 4mm;
C, injection moulding, the pellet obtaining in B step is put in injection moulding machine, at 300 ℃, plastified into fluid, then described fluid is injected in vitrified pipe mould in the mode of reciprocating screw type injection under the pressure of 150MPa, pressurize 14s, be finally cooled to 45 ℃ after the demoulding.
Embodiment 8
A, mixing, puts into 10kg clorafin, 10kg high density polyethylene(HDPE) in the mixing roll of temperature adjustment to 160 ℃ and melts, and adds 1g magnesium oxide, then adds the mixing 8min of 100kg aluminum oxide, then adds the mixing 15min of 2kg stearic acid, makes slip;
B, granulation, be cooled to room temperature by the slip obtaining in A step, drops in tablets press and be ground into the particle that particle diameter is 5mm;
C, injection moulding, the pellet obtaining in B step is put in injection moulding machine, at 200 ℃, plastified into fluid, then described fluid is injected in vitrified pipe mould in the mode of reciprocating screw type injection under the pressure of 110MPa, pressurize 10s, be finally cooled to 40 ℃ after the demoulding.
Embodiment 9
A, mixing, puts into 8kg paraffin, 3kg polycarbonate, 7kg polypropylene in the mixing roll of temperature adjustment to 235 ℃ and melts, and adds 1g magnesium oxide, then adds the mixing 15min of 100kg aluminum oxide, then adds the mixing 25min of 1.5kg oleic acid, makes slip;
B, granulation, be cooled to room temperature by the slip obtaining in A step, drops in tablets press and be ground into the particle that particle diameter is 5mm;
C, injection moulding, the pellet obtaining in B step is put in injection moulding machine, at 210 ℃, plastified into fluid, then described fluid is injected in vitrified pipe mould in the mode of reciprocating screw type injection under the pressure of 150MPa, pressurize 10s, be finally cooled to 35 ℃ after the demoulding.
Embodiment 10
A, mixing, puts into 9kg clorafin, 7kg polycarbonate, 3kg high density polyethylene(HDPE) in the mixing roll of temperature adjustment to 245 ℃ and melts, and adds 1g magnesium oxide, then add the mixing 15min of 100kg aluminum oxide, then add 0.5kg stearic acid, 2.5kg glycerine, mixing 30min, makes slip;
B, granulation, be cooled to room temperature by the slip obtaining in A step, drops in tablets press and be ground into the particle that particle diameter is 5mm;
C, injection moulding, the pellet obtaining in B step is put in injection moulding machine, at 300 ℃, plastified into fluid, then described fluid is injected in vitrified pipe mould in the mode of reciprocating screw type injection under the pressure of 150MPa, pressurize 15s, be finally cooled to 40 ℃ after the demoulding.
Finally it should be noted that: above embodiment is only in order to illustrate the present invention and unrestricted technical scheme described in the invention; Therefore, although this specification sheets has been described in detail the present invention with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can modify or be equal to replacement the present invention; And all do not depart from technical scheme and the improvement thereof of the spirit and scope of the present invention, it all should be encompassed in claim scope of the present invention.
Claims (8)
1. high-pressure mercury lamp vitrified pipe, is characterized in that, by the one-tenth of following proportioning, is grouped into:
Aluminum oxide;
Magnesium oxide, its consumption is alumina weight 0.001 ~ 0.03%;
Polymer carrier, its consumption is alumina weight 1 ~ 10%;
Lubricant, its consumption is alumina weight 3 ~ 15%;
Tensio-active agent, its consumption is alumina weight 1 ~ 3%;
Wherein, the purity of described aluminum oxide is not less than 99.99%, and the purity of described lubricant is analytical pure.
2. high-pressure mercury lamp vitrified pipe according to claim 1, is characterized in that, described aluminum oxide is polycrystal alumina.
3. high-pressure mercury lamp vitrified pipe according to claim 1, is characterized in that, described polymer carrier is at least one in polyethylene, polypropylene, polycarbonate.
4. high-pressure mercury lamp vitrified pipe according to claim 1, is characterized in that, described lubricant is at least one in paraffin, clorafin.
5. high-pressure mercury lamp vitrified pipe according to claim 1, is characterized in that, described tensio-active agent is at least one in oleic acid, stearic acid, glycerine.
6. high-pressure mercury lamp vitrified pipe according to claim 3, is characterized in that, described polyethylene is high density polyethylene(HDPE).
7. a production method for vitrified pipe as claimed in claim 1, is characterized in that, comprises the steps:
A, mixing, puts into lubricant, polymer carrier in the mixing roll of temperature adjustment to 150 ~ 250 ℃ and melts, and adds magnesium oxide, then adds the mixing 7 ~ 15min of aluminum oxide, then adds the mixing 15 ~ 30min of tensio-active agent, makes slip;
B, granulation, be cooled to room temperature by the slip obtaining in A step, drops in tablets press and be ground into the particle that particle diameter is 3 ~ 5mm;
C, injection moulding, put into the pellet obtaining in B step in injection moulding machine, at 150 ~ 300 ℃, plastifies into fluid, then described fluid is made a bet and is injected in vitrified pipe mould at the pressure of 50 ~ 150MPa, pressurize 5 ~ 15s, be finally cooled to 30 ~ 50 ℃ after the demoulding.
8. the production method of vitrified pipe according to claim 7, is characterized in that, in described C step, the mode of injection is reciprocating screw type injection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210351503.4A CN103664142A (en) | 2012-09-20 | 2012-09-20 | Ceramic tube of high pressure sodium lamp and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210351503.4A CN103664142A (en) | 2012-09-20 | 2012-09-20 | Ceramic tube of high pressure sodium lamp and production method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114507065A (en) * | 2022-02-24 | 2022-05-17 | 新化县正能精细陶瓷有限公司 | Injection molding alumina ceramic material and injection molding method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101279851A (en) * | 2007-04-05 | 2008-10-08 | 雅菁 | Heat plastic adhensive system suitable for alumina ceramic injection molding |
| CN102515720A (en) * | 2011-12-08 | 2012-06-27 | 西安交通大学 | Preparation method of transparent alumina ceramic |
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- 2012-09-20 CN CN201210351503.4A patent/CN103664142A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101279851A (en) * | 2007-04-05 | 2008-10-08 | 雅菁 | Heat plastic adhensive system suitable for alumina ceramic injection molding |
| CN102515720A (en) * | 2011-12-08 | 2012-06-27 | 西安交通大学 | Preparation method of transparent alumina ceramic |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114507065A (en) * | 2022-02-24 | 2022-05-17 | 新化县正能精细陶瓷有限公司 | Injection molding alumina ceramic material and injection molding method thereof |
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Application publication date: 20140326 |