CN1084536A - The prescription of electrically-conducting paint for colour picture tube and manufacture craft - Google Patents
The prescription of electrically-conducting paint for colour picture tube and manufacture craft Download PDFInfo
- Publication number
- CN1084536A CN1084536A CN 92106719 CN92106719A CN1084536A CN 1084536 A CN1084536 A CN 1084536A CN 92106719 CN92106719 CN 92106719 CN 92106719 A CN92106719 A CN 92106719A CN 1084536 A CN1084536 A CN 1084536A
- Authority
- CN
- China
- Prior art keywords
- prescription
- picture tube
- manufacture craft
- electrically
- colour picture
- 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.)
- Granted
Links
Abstract
The prescription of electrically-conducting paint for colour picture tube of the present invention and manufacture craft belong to the prescription and the manufacture craft of the electrically conducting coating of using in the colour picture tube.It is dried through rinsing by scale graphite, and impurity elimination and ferric oxide, diffusant add silicon-dioxide through mist projection granulating after being mixed in water, get final product with the deionized water mixing in proportion with water glass, kaolin, trisodium phosphate again.Advantage of the present invention is that technology is simple, and the cost of finished product is low.Discharge quantity is few, and discharge time is few, and noise jamming is few, the image quality height, and long service life reaches and surpasses world level.
Description
The prescription of the coating that the present invention relates to use in the colour picture tube and manufacture craft.
Picture tube in the television industry is the key part of TV.And the quality of its inner employed coating is related to the work-ing life of picture tube.The iron oxide type electrically conducting coating that in colour picture tube, uses.At present domestic does not still have productions, needs import basically, expends a large amount of foreign exchanges, and it is that black and pure water is a basic material with natural cloudy spar, is binding agent with the potassium silicate.Maintain secrecy but this technology also belongs to prescription, the coating of import is because of the foreign matter content height, so make picture tube vacuum tightness low, sparking is many, and noise jamming is big, and image quality is poor, and the life-span is low.Domestic certain factory need expend 1,000,000 dollars when introducing, but quality is unstable always, can't substitute import.
The prescription and the manufacture craft of the tricolour picture tube coating that the purpose of this invention is to provide a kind of alternative import and ensure the quality of products.
A kind of prescription of electrically-conducting paint for colour picture tube and manufacture craft, the percentage composition of its prescription feature is: scale graphite 5-7, ferric oxide 13-15, water glass 10-12 kaolin 2-3, trisodium phosphate 1, diffusant 0.5, silicon-dioxide 2-5, deionized water 56.5-66.5.
Scale graphite in this coating is than the good uniformity of cloudy spar China ink, the dispersiveness of water glass is better than potassium silicate, and deionized water relatively pure water, secondary distillation water etc. has outstanding feature for well, the diffusant that uses is negative diffusant, and silicon-dioxide is the silicon-dioxide of colloidal.
A kind of prescription of electrically-conducting paint for colour picture tube and manufacture craft, it is characterized in that technology be select for use granularity less than 4 microns purity greater than 98% natural scale graphite, with deionized water repeatedly rinsing until neutrality, dewatered drying, place the electrochemical furnace secluding air to heat again to 1200-1600 ℃, under this temperature, kept 3-12 hour, make Graphite Powder 99, select for use purity greater than 99% again, granularity is less than 1 micron brown iron oxide and diffusant, after joining in the pure water more than 5 megaohms at normal temperatures fully mixing by recipe ratio respectively, add silicon-dioxide again, mist projection granulating in the temperature below 350 ℃, (granularity is less than 5 microns), again above-mentioned compound grain powder and granularity kaolin less than 0.5 micron, trisodium phosphate, water glass, deionized water mixes by proportioning, through fully stir product.
This proportioning replaces cloudy spar China ink with purity greater than 98% natural phosphorus flake graphite, reduced the content of impurity in the graphite, reduced the discharge quantity of impurity in colored picture tube simultaneously, improved the vacuum tightness of colored picture tube, it was 25% originally that the adding of ferric oxide makes in the coating ratio of graphite reduce to 10%(, foreign matter content is reduced, reduced discharge quantity, improved the resistivity of coating on the other hand again greatly, reduce discharging current and colored picture tube negative electrode and positive interpolar video picture voltage, make resistivity greater than 0.2 ohmcm, the discharging current of the colored picture tube after using its to apply is less than 100 amperes (only 1/10th of import japanese product G-102), get final product video picture when making colored picture tube inner cathode and anodic voltage far below 2.3 ten thousand volts, cause the quantity of electronic striking flower and video picture noise jamming to reduce, the image quality and the life-span of colored picture tube improve greatly.And substitute potassium silicate with water glass, and reduce cost first, then improve the levelling property and the coating ability of this coating in addition.So advantage of the present invention is that technology is simple, the cost of finished product is low, and discharge quantity is few, and discharge time is few, and impurity disturbs few, image quality height, long service life.
Embodiments of the invention are to be undertaken by above-mentioned manufacture craft, and its ratio requirement is:
Claims (5)
1, a kind of prescription of electrically-conducting paint for colour picture tube and manufacture craft, the percentage composition of its prescription feature is scale graphite 5-7, ferric oxide 13-15, water glass 10-12, kaolin 2-3, trisodium phosphate 1, diffusant 0.5, silicon-dioxide 2-5 deionized water 56.5-66.5.
2, a kind of prescription of electrically-conducting paint for colour picture tube and manufacture craft, it is characterized in that technology is to select for use granularity less than 4 microns, purity is greater than 98% natural scale graphite, with deionized water repeatedly rinsing until neutrality, dewatered drying, place the electrochemical furnace secluding air again, heat to 1200-1600 ℃, under this temperature, kept 3-12 hour, make Graphite Powder 99, select for use purity greater than 99% again, granularity is less than 1 micron brown iron oxide and diffusant, join in the pure water more than 5 megaohms at normal temperatures fully mixing by proportioning respectively after, add silicon-dioxide again, mist projection granulating in the temperature below 350 ℃ is again above-mentioned compound grain powder and the granularity kaolin less than 0.5 micron, trisodium phosphate, water glass, deionized water by proportioning mix through fully stir product.
3, the prescription of electrically-conducting paint for colour picture tube according to claim 1 and manufacture craft is characterized in that diffusant is negative diffusant.
4, the prescription of electrically-conducting paint for colour picture tube according to claim 1 and manufacture craft is characterized in that silicon-dioxide is colloidal silicon-dioxide.
5, a kind of prescription of electrically-conducting paint for colour picture tube and manufacture craft is characterized in that being exclusively used in the coating coating of colour picture tube inner membrance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92106719 CN1031283C (en) | 1992-09-24 | 1992-09-24 | Formula and making process of electrically-conducting paint for colour picture tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92106719 CN1031283C (en) | 1992-09-24 | 1992-09-24 | Formula and making process of electrically-conducting paint for colour picture tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1084536A true CN1084536A (en) | 1994-03-30 |
| CN1031283C CN1031283C (en) | 1996-03-13 |
Family
ID=4942361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92106719 Expired - Fee Related CN1031283C (en) | 1992-09-24 | 1992-09-24 | Formula and making process of electrically-conducting paint for colour picture tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1031283C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045785C (en) * | 1996-02-06 | 1999-10-20 | 山东省南墅石墨矿 | High-impedance internal conductive coating for cathode-ray tube and preparing process thereof |
| CN1045786C (en) * | 1996-02-02 | 1999-10-20 | 山东省南墅石墨矿 | Aquadag outer conductive coating for colour kinescope and its preparation method |
| CN101037555B (en) * | 2007-03-29 | 2010-05-19 | 武汉工程大学 | Inorganic nonmetal magnetic conducting coating and preparation method thereof |
| CN103773199A (en) * | 2014-01-20 | 2014-05-07 | 南通钰成光电科技有限公司 | Conductive coating for kinescope and preparation method of conductive coating |
| CN104974660A (en) * | 2015-06-30 | 2015-10-14 | 苏州洋杰电子有限公司 | Electro-conductive paint for color picture tube and preparation method thereof |
| CN105273453A (en) * | 2014-07-25 | 2016-01-27 | 张文知 | CRT vertebral body inner wall aqueous electric conduction coating material |
| CN107189528A (en) * | 2017-06-01 | 2017-09-22 | 苏州乔纳森新材料科技有限公司 | A kind of medical electric kinescope electrically-conducting paint and preparation method thereof |
-
1992
- 1992-09-24 CN CN 92106719 patent/CN1031283C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045786C (en) * | 1996-02-02 | 1999-10-20 | 山东省南墅石墨矿 | Aquadag outer conductive coating for colour kinescope and its preparation method |
| CN1045785C (en) * | 1996-02-06 | 1999-10-20 | 山东省南墅石墨矿 | High-impedance internal conductive coating for cathode-ray tube and preparing process thereof |
| CN101037555B (en) * | 2007-03-29 | 2010-05-19 | 武汉工程大学 | Inorganic nonmetal magnetic conducting coating and preparation method thereof |
| CN103773199A (en) * | 2014-01-20 | 2014-05-07 | 南通钰成光电科技有限公司 | Conductive coating for kinescope and preparation method of conductive coating |
| CN103773199B (en) * | 2014-01-20 | 2016-01-13 | 南通钰成光电科技有限公司 | A kind of picture tube electrically conducting coating and preparation method thereof |
| CN105273453A (en) * | 2014-07-25 | 2016-01-27 | 张文知 | CRT vertebral body inner wall aqueous electric conduction coating material |
| CN104974660A (en) * | 2015-06-30 | 2015-10-14 | 苏州洋杰电子有限公司 | Electro-conductive paint for color picture tube and preparation method thereof |
| CN107189528A (en) * | 2017-06-01 | 2017-09-22 | 苏州乔纳森新材料科技有限公司 | A kind of medical electric kinescope electrically-conducting paint and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1031283C (en) | 1996-03-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4482447A (en) | Nonaqueous suspension for electrophoretic deposition of powders | |
| CN1084536A (en) | The prescription of electrically-conducting paint for colour picture tube and manufacture craft | |
| CN101891390B (en) | Lead-free medium slurry and manufacturing method thereof | |
| US5147460A (en) | Internal coating materials for a cathode ray tube | |
| GB2182342A (en) | Methods of preparing fluorescent materials of small particle size | |
| CN109399944A (en) | It is a kind of for the glass powder and preparation method of low-temperature sealing and application | |
| GB1561410A (en) | Colour television cathode ray tube | |
| EP0383581A2 (en) | Internal coating materials for a cathode ray tube | |
| US4099977A (en) | Sealing glass vehicle and composition and method for making same | |
| US20100203382A1 (en) | Alkaline battery | |
| US4445996A (en) | Anode paste for use in Soderberg-type electrolytic furnace for aluminum | |
| KR19980038415A (en) | Interior paint of color cathode ray tube | |
| CN114702848A (en) | Coating slurry for graphite crucible and preparation and application methods thereof | |
| US4098611A (en) | Sealing glass vehicle and composition and method for making same | |
| US4120678A (en) | Sealing glass vehicle and composition and method for making same | |
| US5693259A (en) | Coating compositions for glass surfaces or cathode ray tubes | |
| CN1259549A (en) | Formulation and prepn. technology of internal conductive black paint for colour teletron | |
| CN1045785C (en) | High-impedance internal conductive coating for cathode-ray tube and preparing process thereof | |
| KR100596815B1 (en) | Graphite-oxide base coating composition | |
| CN1162925C (en) | Anode material for use in alkaline manganese cells and process for producing the same | |
| CN100474719C (en) | Spark plug | |
| CN107189528A (en) | A kind of medical electric kinescope electrically-conducting paint and preparation method thereof | |
| CN1069078A (en) | Anticorrosive technology for ferrous metal surface | |
| CN1259548A (en) | Formulation and prepn. technology of internal conductive grey paint for colour teletron | |
| JPS5826051A (en) | Glass body having formed alkali diffusion preventing silicon oxide film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |