CN101483125A - Manufacturing method for integrated liner of alumina ceramic metal halogen lamp - Google Patents
Manufacturing method for integrated liner of alumina ceramic metal halogen lamp Download PDFInfo
- Publication number
- CN101483125A CN101483125A CNA2009101052727A CN200910105272A CN101483125A CN 101483125 A CN101483125 A CN 101483125A CN A2009101052727 A CNA2009101052727 A CN A2009101052727A CN 200910105272 A CN200910105272 A CN 200910105272A CN 101483125 A CN101483125 A CN 101483125A
- Authority
- CN
- China
- Prior art keywords
- halogen lamp
- blank
- air
- pressure forming
- alumina ceramic
- 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
Images
Abstract
The present invention relates to an inorganic non-metallic material and a ceramic tube for light source lighting, specifically to a method for preparation of alumina ceramic metallic halogen lamp integral liner, which includes the following three steps: 1) adopting an injection method to inject the thermoplastic material in an injecting molding die to form a blank; 2) adding the blank in an air pressure molding external mold for heating to soften, aerating the blank through a core tube center hole to dilate the blank, to form a blank half-finished product whose external shape satisfies the requirements; 3) performing unglazed pottery to the half-finished product, passing through an appearance surface sanding reconditioning process, and then performing high temperature sintering to obtain the alumina ceramic metallic halogen lamp integral liner. The method has beneficial effects of no need of adopting volatile inner core, regular liner shape, controlled size precision, simple process, low production costs, high reliability and application in various shapes production and the bulk production; the special-shaped integral alumina ceramic metallic halogen lamp liner manufactured by the method has high strength, long service life, good heat resistance and corrosion resistance performances.
Description
Technical field
The present invention relates to a kind of Inorganic Non-metallic Materials and light illumination earthenware, refer more particularly to that a kind of moulding process is simple, efficient is high, adapt to Any shape, have the manufacture method of the integrated liner of alumina ceramic metal halogen lamp of characteristics such as dimensional accuracy height, mechanical strength height, air-tightness are good.
Background technology
Ceramic gold-halogen lamp is that function is the most perfect in the present all kinds of electric light source, and the kind that performance is the most outstanding has the intensity height, volume is little, light efficiency is high, color rendering is good, the life-span is long, light is than characteristics such as unanimities.
Current, ceramic metallic halogen lamp inner container mainly contains two class manufacture methods, and the first kind is to adopt split type manufacture method, by five adhering components to three adhering components the earliest, forms down to being burnt altogether by two parts.Split type inner bag need be produced each parts respectively, again by bonding or altogether the burning mode realize connecting, production efficiency is low, its split joint leaks gas easily, and temperature distributing disproportionation is even, and connecting the part has shadow, problems such as axiality and dimensional accuracy can't guarantee, cause its useful life short, heat-resisting and poor corrosion resistance, the junction bursts easily.
Another kind of method is to adopt the integral molding method, the material (as low-melting alloy, macromolecular material etc.) that wherein has employing at high temperature to volatilize is made inner core, inject ceramic size with injection moulding method then, after treating that slurry solidifies, remove inner core by the method for high temperature melting again, obtain hollow ceramic body; Also there is the mode that adopts gypsum mould grouting absorption to obtain the special-shaped inner bag of integral type.The integral molding method, overcome the shortcoming of split type inner bag, improved the electro-optical properties and the life-span of lamp, the inner core method has been arranged, in row's core process but adopt, because at high temperature the coefficient of expansion is inconsistent for inner core and shell, often cause the cracking of housing, rate of finished products is low, and the removal of inner core material is difficult to totally, residue is bigger to the transparency influence of courage shell, and the processing of complicated heart made has also increased cost.Make inner bag with the plaster mold adsorption method, adsorption time is quite long, and efficient is low, and product size, particularly THICKNESS CONTROL are difficult, and the density unevenness of wall of inner container portion is even, causes product light transmission rate and intensity, dimensional accuracy all relatively poor.
Based on the weak point of above-mentioned existing ceramic metallic halogen lamp inner container manufacture method, the inventor has designed a kind of " a kind of manufacture method of integrated liner of alumina ceramic metal halogen lamp ".
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art technical problem to be solved is: the manufacture method that a kind of integrated liner of alumina ceramic metal halogen lamp is provided.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of manufacture method of integrated liner of alumina ceramic metal halogen lamp is used to make ceramic metallic halogen lamp inner container, the present invention includes following three steps:
1), adopt injecting method to inject one-time-shaped mould thermoplastic, form blank, one-time-shaped mould combines with steel two halves formula shape chamber and steel nook closing member, and two halves formula shape cavity volume is made according to the shape and the tube wall volume of prepared lamp inner bag; Described one-time-shaped mould is made up of two halves formula shape chamber, and two halves formula shape chamber adopts steel to make, and the volume size in shape chamber is provided with the slide core pin according to the design of earthenware wall thickness in center, two halves formula shape chamber, and core pin size is decided according to the end bore of lamp inner bag; Thermoplastic preparation method in the described step 1) is:
(1), configuration aluminium oxide ceramics powder: adopt aluminium oxide purity 〉=99.99%, granularity 0.2-0.8 μ m mixes 0.1-0.3%wt MgO, 0.2-0.5%wt La2O3,0.05-0.10wt ZrO2, it is even to add the ionized water ball milling, ceramic powder is made in the drying dehydration again;
(2), configuration injection compound: above-mentioned ceramic powder is added following thermoplastic adhesive, comprise: the 2.0-5.0%wt polystyrene, the 4.0-9.0%wt polypropylene, 3.0-6.0%wt polymethyl methacrylate, 3.0-8.0%wt paraffin, the 1.0-3.0%wt dioctyl phthalate, 0.5-2.0%wt oleic acid is heated to 130～180 ℃ with above-mentioned compound and becomes liquid object, mixes and merges to there not being bubble, again liquid object is cooled to solid, after pulverizing process is made the injection compound.
2), the blank that step 1) is formed is put into the thermoplastic of air-pressure forming external mold, inflation makes its expansion to centre bore by the core pipe to blank, formation meets the base substrate semi-finished product of shape requirement, the air-pressure forming external mold is formed with steel two halves formula shape chamber and core pipe, the core pipe is provided with centre bore, and the appearance of air-pressure forming external mold cavity shape and lamp inner bag is complementary; The air-pressure forming external mold constitutes by two halves formula shape chamber is involutory, make with steel in two halves formula shape chamber, the external surface shape of the shape in shape chamber and lamp inner bag is complementary, on air-pressure forming external mold outer wall, embed the insulation heating body that is used to control temperature, air-pressure forming external mold center is provided with the slide core pipe with intracavity inter-connection, and the core tube material is a stainless steel.Described air-pressure forming external mold is simple form chamber or multiform cavity configuration, can be according to any shape of product design, and the multi-cavity design adapts to produces the production efficiency height in batches.
3), will be by step 2) the base substrate semi-finished product that make carry out biscuiting, through appearance polishing finishing process, obtain the integrated liner of alumina ceramic metal halogen lamp finished product through high temperature sintering again.
In the described step 1), the injection compound at 140 ℃～190 ℃, under 40～105MPa, adopts one-time-shaped mould injection moulding in dropping into shot mould material chamber, obtain blank.
Described step 2) in, the blank that step 1) is formed is put into the air-pressure forming external mold and is heated to 120～180 ℃ and at first makes the chamber blank softening, be to carry out pulse or constant voltage air-pressure forming under 0.2～0.8Mpa situation at pressure then, the time of air-pressure forming is 2～9 seconds, obtains the ceramic body semi-finished product of integral type at last.Blank with shot moulding, put into air-pressure forming external mold air-pressure forming, open heater, be heated to 120～180 ℃ and make in the chamber blank softening, restart electromagnetically operated valve, make to have certain pressure in the gas tank (0.2～0.8MPa) dry air enters in the blank body, after carrying out pulse or constant voltage (2～9 seconds time) air-pressure forming, close heater and release, the cooling back is extracted two ends core pipe out, can take out the base substrate semi-finished product of integral type.
In the described step 3), with the ceramic body semi-finished product Rt-500 ℃ of temperature behind 12～16 hours binder removals, be warming up to 1200～1300 ℃ of biscuitings, then after the polishing finishing, move in the hydrogen furnace under 1800～1900 ℃ high temperature sintering 6～12 hours, and obtained the good aluminium oxide ceramics integrated liner finished product of transparency at last.
The manufacture method beneficial effect of a kind of integrated liner of alumina ceramic metal halogen lamp of the present invention is:
Adopt integral molding, the defective of having avoided split type moulding inner bag to exist, the reliability height, the life-span is long, heat-resisting and good corrosion resistance.Adopt steel die in addition, base substrate size and shape are determined by mould, so dimensional uniformity is good, and can make Any shape such as circle, ellipse, cydariform.And owing to adopt the multi-cavity design, be applicable to batch process, the efficient height adopts the centreless air-pressure forming, simplifies technology, saves cost.In sum, the present invention has need not adopt that volatility inner core, inner bag shape are regular, controlled size precision, technology is simple, production cost is low, reliability is high, adapt to the characteristics of production Any shape and batch process, special-shaped integral type alumina ceramic metallic halogen lamp liner intensity height, long service life, the heat-resisting and corrosion resistance and good made with the inventive method.
Description of drawings
Fig. 1 is an injecting molding die structural representation of the present invention;
Fig. 2 is an air-pressure forming mould structure schematic diagram of the present invention;
Fig. 3 is the schematic diagram during injection moulding among the present invention;
Fig. 4 is the front side schematic diagram during air-pressure forming among the present invention;
Fig. 5 is the rear side schematic diagram during air-pressure forming among the present invention;
Fig. 6 is the core tubular construction schematic diagram of air-pressure forming mould among the present invention.
Description of reference numerals:
1, injecting molding die 2, core pin 3, air-pressure forming mould
4, insulation heating body 5, blank 6, air pressure core pipe
7, electromagnetically operated valve 8, gas tank 9, air hose
10, base substrate semi-finished product
Embodiment
Referring to figs. 1 through Fig. 6, the present invention implements like this:
The manufacture method of present embodiment one is as follows:
1, at first be to make injecting molding die 1 and air-pressure forming external mold 3, Fig. 1 is the structure chart of injecting molding die, injecting molding die 1 is made of the combination of two halves formula shape chamber, adopt steel, the volume size in shape chamber designs according to the earthenware wall thickness, injecting molding die 1 center is provided with slide core pin 2, and core pin size is decided according to the end bore of inner bag; Fig. 2 is the structure chart of air-pressure forming external mold, air-pressure forming external mold 3 by the involutory institute in two halves formula shape chamber constitute, adopt steel, the shape in shape chamber and the external surface shape of ceramic liner match, on the mould outer wall, embed insulation heating body 4, Controllable Temperature, safety, mold center is provided with the slide core pipe 6 that is connected with dies cavity, the slide core tubular construction as shown in Figure 6, its material is a stainless steel, and the air-pressure forming external mold adopts the design of single chamber, and it also can adopt the multi-cavity structure design.
2, configuration aluminium oxide ceramics powder: it adopts aluminium oxide purity 〉=99.9%, and granularity 0.2 μ m mixes 0.1%wt MgO, 0.2%wt La2O3, and 0.05wt ZrO2, it is even to add the ionized water ball milling, and drying is dehydrated into the aluminium oxide ceramics powder again.
3, configuration injection compound: above-mentioned aluminium oxide ceramics powder is added thermoplastic adhesive, comprise: the 2.5%wt polystyrene, the 4.5%wt polypropylene, 3.5%wt polymethyl methacrylate, 4.0%wt paraffin, the 1.5%wt dioctyl phthalate, 0.8%wt oleic acid is heated to 140 ℃ and becomes liquid, mixes and merges to there not being bubble, be cooled to solid again, through being ground into the injection compound.
4, moulding:
View when Fig. 3 is injection moulding with the above-mentioned injection compound for preparing, drops in the injector material chamber, is 140 ℃ in working temperature, and pressure is under the 50MPa, adopts the moulding of shot mould, obtains blank 5;
View when Fig. 4 and Fig. 5 are air-pressure forming, at first the blank 5 of shot moulding is put into air-pressure forming external mold 3, air-pressure forming external mold 3 two ends mesopores insert the stainless steel core pipe 6 of connection air hose 9 to spacing place, guarantee that two ends core pipe 6 is consistent with blank tail pipe length, and then open heater 4.Being heated to 140 ℃ makes in the chamber blank 5 softening, restart electromagnetically operated valve 7, the dry air that makes gas tank 8 have certain pressure (0.3MPa) enters in the blank body, after carrying out pulse or constant voltage (3 seconds time) air-pressure forming, close heater and release, the cooling back is extracted two ends core pipe out, can take out the base substrate semi-finished product 10 of integral type.
5, make aluminium oxide ceramics integrated liner finished product: with ceramic body behind following 13 hours binder removals of Rt-500 ℃ of temperature, be warming up to 1200 ℃ of biscuitings, and after polishing is repaired, move in the H2 stove under 1800 ℃ high temperature sintering 8 hours, and can obtain the good aluminium oxide ceramics integrated liner finished product of transparency.
The manufacture method of present embodiment two is as follows:
1, at first be to make injecting molding die 1 and air-pressure forming external mold 3, Fig. 1 is the structure chart of injecting molding die, injecting molding die 1 is made of the combination of two halves formula shape chamber, adopt steel, the volume size in shape chamber designs according to the earthenware wall thickness, injecting molding die 1 center is provided with slide core pin 2, and core pin size is decided according to the end bore of inner bag; Fig. 2 is the structure chart of air-pressure forming external mold, air-pressure forming external mold 3 by the involutory institute in two halves formula shape chamber constitute, adopt steel, the shape in shape chamber and the external surface shape of ceramic liner match, on the mould outer wall, embed insulation heating body 4, Controllable Temperature, safety, mold center is provided with the slide core pipe 6 that is connected with dies cavity, the slide core tubular construction is shown in Fig. 6, its material is a stainless steel, and the air-pressure forming external mold adopts the design of single chamber, and it also can adopt the multi-cavity structure design.
2, configuration aluminium oxide ceramics powder: it adopts aluminium oxide purity 〉=99.9%, and granularity 0.7 μ m mixes 0; 25%wt MgO, 0.4%wt La2O3,0.08wt ZrO2, it is even to add the ionized water ball milling, and to be dehydrated into powder standby for drying again.
3, configuration injection compound: aforesaid ceramic powder is added thermoplastic adhesive, comprise: the 4.0%wt polystyrene, the 8.0%wt polypropylene, 5.0%wt polymethyl methacrylate, 7.0%wt paraffin, the 2.0%wt dioctyl phthalate, 1.0%wt oleic acid is heated to 160 ℃ and becomes liquid, mixes and merges to there not being bubble, be cooled to solid again, standby through pulverizing granulating.
4, moulding:
View when Fig. 3 is injection moulding with the above-mentioned injection compound for preparing, drops in the injector material chamber, is 160 ℃ in working temperature, and pressure is under the 130MPa, adopts a mould injection moulding, obtains blank 5;
View when Fig. 4 and Fig. 5 are air-pressure forming, at first the blank of shot moulding is put into air-pressure forming external mold 3, air-pressure forming external mold 3 two ends mesopores insert the stainless steel core pipe 6 of connection air hose 9 to spacing place, guarantee that two ends core pipe 6 is consistent with blank tail pipe length, and then open heater 4.Being heated to 160 ℃ makes in the chamber blank 5 softening, restart electromagnetically operated valve 7, the dry air that makes gas tank 8 have certain pressure (0.5MPa) enters in the blank body, after carrying out pulse and becoming constant voltage (7 seconds time) air-pressure forming, close heater and release, the cooling back is extracted two ends core pipe out, can take out the base substrate semi-finished product 10 of integral type.
5, make finished product: with ceramic body behind following 15 hours binder removals of Rt-500 ℃ of temperature, be warming up to 1250 ℃ of biscuitings, and after polishing is repaired, moved in the H2 stove under 1880 ℃ high temperature sintering 6 hours, can obtain the good aluminium oxide ceramics integrated liner of transparency.
The above, it only is the manufacture method preferred embodiment of a kind of integrated liner of alumina ceramic metal halogen lamp of the present invention, the above embodiments are not that technical scope of the present invention is imposed any restrictions, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention above any trickle modification, equivalent variations and modification that embodiment did.
Claims (8)
1, a kind of manufacture method of integrated liner of alumina ceramic metal halogen lamp is used to make ceramic metallic halogen lamp inner container, the present invention includes following three steps:
1), adopt injecting method to inject injecting molding die thermoplastic, form blank, injecting molding die combines with steel two halves formula shape chamber and steel nook closing member, and two halves formula shape cavity volume is made according to the shape and the tube wall volume of prepared lamp inner bag;
2), the blank that step 1) is formed is put into the thermoplastic of air-pressure forming external mold, inflation makes its expansion to centre bore by the core pipe to blank, formation meets the base substrate semi-finished product of shape requirement, the air-pressure forming external mold is formed with steel two halves formula shape chamber and core pipe, the core pipe is provided with centre bore, and the appearance of air-pressure forming external mold cavity shape and lamp inner bag is complementary;
3), will be by step 2) the base substrate semi-finished product that make carry out biscuiting, through appearance polishing finishing process, obtain the integrated liner of alumina ceramic metal halogen lamp finished product through high temperature sintering again.
2, the manufacture method of a kind of integrated liner of alumina ceramic metal halogen lamp according to claim 1 is characterized in that the thermoplastic preparation method in the described step 1) is:
1), configuration aluminium oxide ceramics powder: adopt aluminium oxide purity 〉=99.9%, granularity 0.2～0.8 μ m mixes 0.1～0.3%wt MgO, 0.2～0.5%wt La2O3,0.05～0.10wt ZrO2, it is even to add the ionized water ball milling, and ceramic powder is made in the drying dehydration again;
2), configuration injection compound: above-mentioned ceramic powder is added following thermoplastic adhesive, comprise: the 2.0-5.0%wt polystyrene, the 4.0-9.0%wt polypropylene, 3.0-6.0%wt polymethyl methacrylate, 3.0-8.0%wt paraffin, the 1.0-3.0%wt dioctyl phthalate, 0.5-2.0%wt oleic acid is heated to 130～180 ℃ with above-mentioned compound and becomes liquid object, mixes and merges to there not being bubble, again liquid object is cooled to solid, after pulverizing process is made the injection compound.
3, the manufacture method of a kind of integrated liner of alumina ceramic metal halogen lamp according to claim 1, it is characterized in that in the described step 1), the injection compound is in dropping into injecting molding die material chamber, at 140 ℃～190 ℃, under 40～105MPa, adopt injecting molding die injection moulding, obtain lamp inner bag blank.
4, the manufacture method of a kind of integrated liner of alumina ceramic metal halogen lamp according to claim 1, it is characterized in that described step 2) in, the blank that step 1) is formed is put into the air-pressure forming external mold and is heated to 120～180 ℃ and at first makes the chamber blank softening, be to carry out pulse or constant voltage air-pressure forming under 0.2～0.8Mpa situation at pressure then, the time of air-pressure forming is 2～9 seconds, obtains the ceramic body semi-finished product of integral type at last.
5, the manufacture method of a kind of integrated liner of alumina ceramic metal halogen lamp according to claim 1, it is characterized in that described injecting molding die is made up of two halves formula shape chamber, two halves formula shape chamber adopts steel to make, the volume size in shape chamber designs according to the earthenware wall thickness, be provided with the slide core pin in center, two halves formula shape chamber, core pin size is decided according to the end bore of lamp inner bag.
6, the manufacture method of a kind of integrated liner of alumina ceramic metal halogen lamp according to claim 1, it is characterized in that described air-pressure forming external mold constitutes by two halves formula shape chamber is involutory, make with steel in two halves formula shape chamber, the external surface shape of the shape in shape chamber and lamp inner bag is complementary, on air-pressure forming external mold outer wall, embed the insulation heating body that is used to control temperature, air-pressure forming external mold center is provided with the slide core pipe with intracavity inter-connection, and the core tube material is a stainless steel.
7, the manufacture method of a kind of integrated liner of alumina ceramic metal halogen lamp according to claim 1 is characterized in that described air-pressure forming external mold is simple form chamber or multiform cavity configuration.
8, the manufacture method of a kind of integrated liner of alumina ceramic metal halogen lamp according to claim 1, it is characterized in that in the described step 3) with the ceramic body semi-finished product Rt-500 ℃ of temperature behind 12～16 hours binder removals, be warming up to 1200～1300 ℃ of biscuitings, then after the polishing finishing, move in the hydrogen furnace under 1800～1900 ℃ high temperature sintering 6～12 hours, and obtained aluminium oxide ceramics integrated liner finished product at last.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101052727A CN101483125A (en) | 2009-01-23 | 2009-01-23 | Manufacturing method for integrated liner of alumina ceramic metal halogen lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101052727A CN101483125A (en) | 2009-01-23 | 2009-01-23 | Manufacturing method for integrated liner of alumina ceramic metal halogen lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101483125A true CN101483125A (en) | 2009-07-15 |
Family
ID=40880178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101052727A Pending CN101483125A (en) | 2009-01-23 | 2009-01-23 | Manufacturing method for integrated liner of alumina ceramic metal halogen lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101483125A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011038615A1 (en) * | 2009-09-29 | 2011-04-07 | Deng Xiangling | Method for manufacturing integrated ceramic arc tube for metal halide lamp |
| CN102020469A (en) * | 2009-09-23 | 2011-04-20 | 邓湘凌 | Method for preparing hollow object by blow molding of zirconia ceramic |
| CN102527110A (en) * | 2011-12-27 | 2012-07-04 | 杭州兴源过滤科技股份有限公司 | Controllable high-density constant-temperature membrane filter plate and formation method |
| CN102543623A (en) * | 2010-12-31 | 2012-07-04 | 沈阳光大鲍迪克照明电器有限公司 | Manufacturing method of discharge tube shell and discharge tube shell blank |
-
2009
- 2009-01-23 CN CNA2009101052727A patent/CN101483125A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102020469A (en) * | 2009-09-23 | 2011-04-20 | 邓湘凌 | Method for preparing hollow object by blow molding of zirconia ceramic |
| CN102020469B (en) * | 2009-09-23 | 2013-12-25 | 邓湘凌 | Method for preparing hollow object by blow molding of zirconia ceramic |
| WO2011038615A1 (en) * | 2009-09-29 | 2011-04-07 | Deng Xiangling | Method for manufacturing integrated ceramic arc tube for metal halide lamp |
| CN102543623A (en) * | 2010-12-31 | 2012-07-04 | 沈阳光大鲍迪克照明电器有限公司 | Manufacturing method of discharge tube shell and discharge tube shell blank |
| CN102527110A (en) * | 2011-12-27 | 2012-07-04 | 杭州兴源过滤科技股份有限公司 | Controllable high-density constant-temperature membrane filter plate and formation method |
| CN102527110B (en) * | 2011-12-27 | 2014-11-26 | 杭州兴源过滤科技股份有限公司 | Controllable high-density constant-temperature membrane filter plate and formation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102351542B (en) | Preparation method of hollow-structure metal or ceramic part | |
| CN108706978B (en) | Method for preparing silicon carbide ceramic matrix composite by combining spray granulation with 3DP and CVI | |
| CN102992778B (en) | Precision ceramic with jade texture and preparation method thereof | |
| CN207166918U (en) | The location structure of lead on a kind of accurate control metal-packaged shell | |
| CN203710985U (en) | High-pressure mold | |
| CN101483125A (en) | Manufacturing method for integrated liner of alumina ceramic metal halogen lamp | |
| CN108863343A (en) | A kind of method of the sintering integrated formula production ITO target of degreasing- | |
| CN100580850C (en) | Manufacturing method for ceramic metallic halogen lamp monomer electric arc pipe shell | |
| CN102219477B (en) | Manufacture method for ceramic base of LED illuminating lamp | |
| CN102795861A (en) | Molding process for manufacturing thin porcelain body | |
| CN102600767B (en) | High-temperature insulation ceramic tube for synthesizing diamond with large cavity and manufacturing method thereof | |
| CN1201911C (en) | Forming process for silicon carbide reflector blank and expansion and contraction mold | |
| CN111306940B (en) | Boron carbide ceramic pressureless sintering process and device | |
| CN101697336A (en) | Method for manufacturing integrated ceramic metal halide lamp electric arc tube | |
| CN102366837A (en) | Method for manufacturing thorium tungsten-tungsten composite electrode used for high pressure gas discharge lamp | |
| CN109665808B (en) | Environment-friendly multilayer composite high-strength dolomite pottery and manufacturing process thereof | |
| CN105732015B (en) | Household ceramic switch panel and manufacturing process thereof | |
| CN113349451A (en) | Electronic cigarette ceramic heating body based on open pore firing forming and preparation method | |
| CN206702219U (en) | A kind of metal powder injection molding sinters tool | |
| CN104860691A (en) | Preparation method for high-strength ferro silicon nitride kiln furniture | |
| CN110608603B (en) | Preparation method of rotary kiln liner with built-in heating mode | |
| CN110498672B (en) | Method for manufacturing ceramic faucet tube body | |
| CN113427604B (en) | Manufacturing method of heat storage checker brick of hot blast stove | |
| CN104230316A (en) | Method for preparing aluminum oxide ceramic | |
| CN215075546U (en) | Electron cigarette ceramic heating body based on shaping is fired to trompil |
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 |
Open date: 20090715 |