CN102424567B - Manufacturing method of ceramic tube for high-pressure gas discharging lamp - Google Patents
Manufacturing method of ceramic tube for high-pressure gas discharging lamp Download PDFInfo
- Publication number
- CN102424567B CN102424567B CN201110254152.0A CN201110254152A CN102424567B CN 102424567 B CN102424567 B CN 102424567B CN 201110254152 A CN201110254152 A CN 201110254152A CN 102424567 B CN102424567 B CN 102424567B
- Authority
- CN
- China
- Prior art keywords
- valve
- mould
- earthenware
- idiosome
- tube
- 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.)
- Expired - Fee Related
Links
Abstract
The invention belongs to the field of ceramic molding, and particularly relates to a manufacturing method of a ceramic tube for a high-pressure gas discharging lamp. The manufacturing method comprises the following steps: replacing the traditional gypsum mould with a porous high molecular weight polyethylene, and injecting high-pure aluminum oxide slurry into a plastic mould; then sealing two ends; introducing compressed air to pressurize; stopping pressurizing after the scheduled time; and presintering and sintering at high pressure to manufacture a high-pure semi-transparent aluminum oxide tube. The porous plastic mould which cannot generate calcium ion pollution like the gypsum mould is adopted by the invention, thus, the purity degree of raw materials is ensured, the transparency and the strength of the ceramic tube are improved, and various integrated semi-transparent ceramic tubes with abnormal shapes are produced.
Description
Technical field
The invention belongs to forming process of ceramics field, particularly, relate to a kind of manufacture method of high-pressure metal halide gaseous discharge lamp earthenware.
Background technology
The features such as ceramic gold-halogen lamp is the kind that in all kinds of high-voltage gas discharging light, performance is the most outstanding, and it is high that it has color rendering, and the life-span is long, and colour temperature consistency is good.The earthenware of inner bag is then the critical component of ceramic gold-halogen lamp.
The molding mode of integral ceramics pipe generally divides two classes: a class is the molding mode having fusible inner core; Another kind of is molding mode without inner core.The molding mode of fusible inner core first makes fusible core with macromolecular material, and ceramic material is filled into the die cavity between mould and core by injection system, inner core melts by the method then by increasing temperature, and obtains the one earthenware idiosome of hollow.Because inner core material is different with the coefficient of expansion of idiosome material, in depoling process, idiosome can be caused to ftracture, and rate of finished products is low; Fuse difficulty is got rid of completely, and residue minimal residue thing can affect the purity of earthenware, causes transparency to decline, the service life reduction of lamp.
Molding mode without inner core uses gypsum mold adsorption method, ceramic size injected gypsum mold cavity, is drawn onto in mould by gypsum by the moisture in slip, discharged by slurry remaining in cavity, form the one earthenware idiosome of hollow.Shaping with plaster mold, the calcium ion in gypsum can pollute high-purity aluminium oxide ceramics material, causes earthenware abnormal grain growth, and intensity and light transmittance reduce, the service life reduction of earthenware.Use plaster mold shaping, product size, wall thickness change is large simultaneously, is difficult to control.
Summary of the invention
The present invention be directed to the weak point in aforementioned production method, propose a kind of a kind of manufacture method of the earthenware shaping without inner core.
Object of the present invention realizes by the following technical solutions:
A manufacture method for ceramic tube for high-pressure gas discharging lamp, the method step is:
(1), mould is made into porous polymer weight northylen material; Mould upper end grafting one plastic tube, plastic tube is provided with the first valve, and mould lower end is plugged with a T-shaped plastic tube, and the vertical branch of T-shaped plastic tube is connected with mould lower end, and the straight type pipe two ends of T-shaped plastic tube are respectively equipped with the second valve and the 3rd valve;
(2), by mould put into vacuum plant, vacuumize process;
(3), the 3rd valve is closed, open the first valve, by in high purity aluminium oxide slip injected plastic mould, then close the second valve and the first valve, open the 3rd valve, pass into pressurized with compressed air, then the 3rd valve is closed, open the second valve and the first valve, release residue slurry, obtaining centre is hollow one earthenware idiosome;
(4), earthenware idiosome is put into Muffle furnace pre-burning;
(5), earthenware idiosome burned in advance sinters in hydrogen atmosphere, namely obtains translucent alumina ceramics pipe.
Preferably, mould manufactures with the High molecular weight polyethylene material that hole is 1 micron, and structure is made up of two halves, and the die cavity of two half modules is identical, is grouped together and forms complete die cavity, corresponding with one earthenware idiosome size.
Preferably, in step 2, mould is put into vacuum plant to carry out the vacuum treated time is 30min.
Preferably, the air pressure passing into pressurized with compressed air in step 3 remains on 0.3-0.5MPa, keeps 1-2min.
Preferably, the pre-burning 10-15h of 800 DEG C-1000 DEG C in air of the shaping alumina tube idiosome in step 4, and reach certain intensity.
Preferably, through the earthenware of pre-burning again through hydrogen atmosphere 1800 DEG C-1900 DEG C, 8-10h fires, and becomes translucent alumina ceramics pipe.
Preferably, mould is ball-type, spheroid shape or or column type.
The present invention's porous polymer weight northylen material is made into mould, replaces traditional gypsum mold.Solve gypsum mold intensity low, the life-span is short, can produce the problem of calcium ion pollution to high-purity material.It is high that polyethylene mould has intensity, and the life-span is long, even structure, good penetrability, smooth surface, and can not produce adsorbed high purity aluminium oxide slurry and pollute, the aluminium oxide purity of production is high, and pipe uniform crystal particles, light transmittance is high.Meanwhile, adopt pressurized with compressed air time shaping, the consistency of product size and wall thickness can be ensured.
Accompanying drawing explanation
Fig. 1 is forming process schematic diagram of the present invention
Fig. 2 is forming die structure schematic diagram of the present invention
Embodiment
As shown in Figure 1-2, according to the size design mould 1 of required earthenware, be that (common polythene is pore-free material to material with the High molecular weight polyethylene plate that hole is 1 micron, and porous polymer weight northylen material has water absorption, intensity is high, possess the feature of mould), forming mold 1; Mould 1 is made up of half module 1a and half module 1b, is combined by half module 1a and half module 1b, is formed into die cavity 2, and the size of forming cavity is determined according to the Size calculation of earthenware.Mould 1 upper end grafting one plastic tube, plastic tube is provided with the first valve 5, and mould 1 lower end is plugged with a T-shaped plastic tube, and the vertical branch of T-shaped plastic tube is connected with mould lower end, and the straight type pipe two ends of T-shaped plastic tube are respectively equipped with the second valve 3 and the 3rd valve 4.The effect of the first valve 5 is: communicate with air during charging, ensures that charging is smooth and easy; During logical compressed air, close molding cavity; Second valve 4 is used as charging aperture and discharge gate; 3rd valve 4 is used as logical compressed air mouth.Mould is put into vacuum plant, by the vacuum treatment of 30 minutes, ensures that surface pore is unimpeded.Close the 3rd valve 4, open the first valve 5, by the high purity aluminium oxide slurry for preparing by the second valve 3 injected plastic die cavity, then close the second valve 3 and the first valve 5, open the 3rd valve 4, pass into pressurized with compressed air and (pass through pressurized with compressed air, improve shaping block volume density, reduce dimensional discrepancy), air pressure remains on 0.3-0.5MPa, keep 1-2min (by adjustment molding time, determining shaping idiosome thickness); Then close the 3rd valve 4, open the second valve 3 and the first valve 5, release residue slurry, then obtaining centre is hollow one earthenware semi-finished product.Shaping earthenware 2 pre-burning 10-15h of 800 DEG C-1000 DEG C in air atmosphere, and reach certain intensity.Through the earthenware 2 of pre-burning again through hydrogen atmosphere 1800 DEG C-1900 DEG C, 8-10h fires (ensureing that product is fired rear transparent), becomes translucent alumina ceramics pipe.Fire diameter dimension deviation range ± 1% of rear finished product.
Claims (2)
1. a manufacture method for ceramic tube for high-pressure gas discharging lamp, the method step is:
(1), mould is made into porous polymer weight northylen material; Mould upper end grafting one plastic tube, plastic tube is provided with the first valve, and mould lower end is plugged with a T-shaped plastic tube, and the vertical branch of T-shaped plastic tube is connected with mould lower end, and the straight type pipe two ends of T-shaped plastic tube are respectively equipped with the second valve and the 3rd valve;
Mould manufactures with the High molecular weight polyethylene material that hole is 1 micron, and structure is made up of two halves, and the die cavity of two half modules is identical, is grouped together and forms complete die cavity, corresponding with one earthenware idiosome size;
(2), by mould put into vacuum plant, vacuumize process;
Vacuum plant put into by mould, and to carry out the vacuum treated time be 30min;
(3), the 3rd valve is closed, open the first valve, by in high purity aluminium oxide slip injected plastic mould, then close the second valve and the first valve, open the 3rd valve, pass into pressurized with compressed air, then the 3rd valve is closed, open the second valve and the first valve, release residue slurry, obtaining centre is hollow one earthenware idiosome;
The air pressure passing into pressurized with compressed air remains on 0.3-0.5MPa, keeps 1-2min;
(4), earthenware idiosome is put into Muffle furnace pre-burning;
Shaping alumina tube idiosome pre-burning 10-15h of 800 DEG C-1000 DEG C in air, and reach certain intensity;
(5), earthenware idiosome burned in advance sinters in hydrogen atmosphere, namely obtains translucent alumina ceramics pipe;
Through the earthenware of pre-burning again through hydrogen atmosphere 1800 DEG C-1900 DEG C, 8-10h fires, and becomes translucent alumina ceramics pipe.
2. the manufacture method of ceramic tube for high-pressure gas discharging lamp according to claim 1, is characterised in that: mould is ball-type, spheroid shape or column type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110254152.0A CN102424567B (en) | 2011-08-31 | 2011-08-31 | Manufacturing method of ceramic tube for high-pressure gas discharging lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110254152.0A CN102424567B (en) | 2011-08-31 | 2011-08-31 | Manufacturing method of ceramic tube for high-pressure gas discharging lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102424567A CN102424567A (en) | 2012-04-25 |
| CN102424567B true CN102424567B (en) | 2015-02-18 |
Family
ID=45958605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110254152.0A Expired - Fee Related CN102424567B (en) | 2011-08-31 | 2011-08-31 | Manufacturing method of ceramic tube for high-pressure gas discharging lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102424567B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104085044B (en) * | 2014-07-02 | 2017-03-15 | 黄舒遥 | A kind of method of utilization hollow ceramic mould molding hollow ceramic component |
| CN105777205B (en) * | 2016-03-07 | 2018-06-05 | 宁波泰格尔陶瓷有限公司 | Wear resistant corrosion resistant transparent alumina ceramics tube preparation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101159210A (en) * | 2007-11-03 | 2008-04-09 | 清新县石坎镇巨安胶木电器瓷件厂 | Manufacturing method for ceramic metallic halogen lamp monomer electric arc pipe shell |
| CN101630618A (en) * | 2009-08-21 | 2010-01-20 | 阮大庆 | Integrated manufacturing method of ceramic metal halide lamp electric arc tube housing |
-
2011
- 2011-08-31 CN CN201110254152.0A patent/CN102424567B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101159210A (en) * | 2007-11-03 | 2008-04-09 | 清新县石坎镇巨安胶木电器瓷件厂 | Manufacturing method for ceramic metallic halogen lamp monomer electric arc pipe shell |
| CN101630618A (en) * | 2009-08-21 | 2010-01-20 | 阮大庆 | Integrated manufacturing method of ceramic metal halide lamp electric arc tube housing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102424567A (en) | 2012-04-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206678300U (en) | A kind of injection mold gas extraction system | |
| NZ584099A (en) | Narrow neck glass container with internal embossments and method of manufacture | |
| CN101143492A (en) | Compression type RTM forming method | |
| CN102424567B (en) | Manufacturing method of ceramic tube for high-pressure gas discharging lamp | |
| CN105479773B (en) | Liquid resin transfer molding system and forming method thereof | |
| CN109822078B (en) | SiC prepared by vacuum pressure infiltration counter-pressure method3DMethod for preparing/Al composite material | |
| CN105690791A (en) | Barrel-shaped composite structural member overall molding method capable of achieving easy demolding | |
| CN206106422U (en) | Novel vacuum bag shaping device | |
| CN205929505U (en) | Carbon fiber product's forming device | |
| CN202344668U (en) | Mold for manufacturing ceramic tube for high-pressure gas discharge lamp | |
| CN105415702A (en) | Integral forming method of easy-to-demold composite material storage tank | |
| CN102581928B (en) | Method for manufacturing ceramic mould of artificial culture stone | |
| CN209365135U (en) | A kind of composite molding glue-injection frock | |
| CN101602598B (en) | Method for preparing ceramic lamp tube | |
| CN102249517B (en) | The production method of a blow molding hard glass fishing lamp cell-shell | |
| WO2011038615A1 (en) | Method for manufacturing integrated ceramic arc tube for metal halide lamp | |
| CN205800229U (en) | A kind of vacuum forming platform | |
| CN103481527B (en) | The preparation method of cellulosic tubing | |
| CN106182398A (en) | A kind of moulding process of ceramic plunger | |
| CN200990368Y (en) | Deformed integrated ceramic tube for metal halide lamp | |
| CN104999635A (en) | Automotive glass manufacturing method and automotive glass | |
| CN205310858U (en) | Mammary gland machine supports preparation mould of carbon plate | |
| CN108996984A (en) | A kind of dipping method of aerogel composite | |
| CN218700605U (en) | Bubble removing structure for rubber product production | |
| CN114953102B (en) | Device and method for preparing seamless ceramic hollow floating ball by hollow pressurizing grouting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: Langfang Litai Road Facilities Manufacturing Co., Ltd. Document name: Notification of Passing Preliminary Examination of the Application for Invention |
|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Langfang Litai Road Facilities Manufacturing Co., Ltd. Document name: Notification of Publication of the Application for Invention |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Langfang Litai Road Facilities Manufacturing Co., Ltd. Document name: Notification of Patent Invention Entering into Substantive Examination Stage |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Langfang Litai Road Facilities Manufacturing Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Langfang Litai Road Facilities Manufacturing Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20150831 |
|
| EXPY | Termination of patent right or utility model |