CN1370762A - Gold plating method of high temperature and high voltage resisting quartz or high-alumina tube and application of the gold plating tube in ozone generator - Google Patents

Gold plating method of high temperature and high voltage resisting quartz or high-alumina tube and application of the gold plating tube in ozone generator Download PDF

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Publication number
CN1370762A
CN1370762A CN 01104080 CN01104080A CN1370762A CN 1370762 A CN1370762 A CN 1370762A CN 01104080 CN01104080 CN 01104080 CN 01104080 A CN01104080 A CN 01104080A CN 1370762 A CN1370762 A CN 1370762A
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China
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quartz
aluminum pipe
high oxidation
oxidation aluminum
gold
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CN1253414C (en
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刘辉堂
黄宽朗
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/51—Metallising, e.g. infiltration of sintered ceramic preforms with molten metal
    • C04B41/5116—Ag or Au

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)

Abstract

The present invention relates to a metal film coating method for ozone generating pipe of micro discharging ozone-generating machine used widely in commercial and industrial fields. Ozone generating pipe of quartz or aluminia is coated with gold containing paint and sintered under controlled temperature and time to form one layer of gold film on the surface. The ozone generating pipe produced through the said process is high temperature resistant and thus has long service life.

Description

Nai Gaore, high-tension quartz or high oxidation aluminum pipe gold plating method, and be applied in the gold-plated quartz or the high oxidation aluminum pipe of ozonizer
The present invention relates to the method for the coated with gold film of silica tube and high-alumina material pipe, and the silica tube or the high oxidation aluminum pipe that utilize this method to produce, this silica tube or high oxidation aluminum pipe are suitable for use in the micro discharges principle and make on the ozonizer of ozone.
The ozone machine that generally is used for commerce and industry member is many makes ozone with the method for micro discharges.The engineering design of this class ozone machine is according to following equation (Manley ' s formula): P = 4 f C v U d [ U m - U d ( 1 + C a C v ) ] Wherein:
The P representative is stored in the energy between dielectric materials;
F represents the frequency of power supply;
C vRepresent the electric capacity specific inductivity;
U dRepresent the sparking voltage value;
U mRepresentative is added on the operating voltage of battery lead plate;
C aRepresent the spatial dielectric constant.
According to aforesaid equation as can be known, the high more energy that then is stored between dielectric materials of supply frequency is big more.Actually, also increase ozone concn and output usually in the mode that increases supply frequency.
Fig. 1 is for utilizing the ozoniferous synoptic diagram of micro discharges.It comprises pair of electrodes 2, wherein is covered with dielectric substance 4 on the electrode, and this counter electrode 2 links an AC power 6.When having oxygen (O 2) gas by direction shown in the arrow among the figure when being positioned at the high voltage discharge field of 2 at two electrodes, oxygen (O wherein 2) producing ozone (O through meeting behind the electrion 3).
Employed dielectric materials must be able to bear the impact and the anti-ozone oxidation of high-pressure electronic in the micro discharges process, the more important thing is and must be able to bear the high heat that the consume of high frequency, high-tension micro discharges electric energy is produced.
This class is utilized high frequency, the ozoniferous ozonizer of highly compressed micro discharges, and its inside includes a critical elements usually, and promptly ozone generates pipe.It is how made with the industrial material that is called pyrex that general ozone generates pipe, and its body inner ring conducts electricity with silicon iron sheet or stainless steel.Such structure and dielectric substance (being tube wall) contact bad and conductivity bad, thereby make ozone generate pipe to form local high heat and cause damage; This to be general ozone machine denounced unbearably reason of life-time service.Improved method is to plate metallic substance at tube wall, and how to plate metal, and institute's metallizing all is the key point of technology for which kind of material.Generate the impact that the metallic membrane of tube-surface can't bear high frequency, high-voltage electronics owing to generally be plated in ozone in the evaporation mode, the high heat that adds on the upper tube wall to be produced, it is not long to cause ozone to generate work-ing life of pipe, can't obtain gratifying quality.
The objective of the invention is to select to manage preferably the kind of material material and metallizing, and improvement metallizing on this tubing how, the metallic membrane that makes body itself and be coated on the tube wall can both be high temperature resistant, can reach the purpose that prolongs this ozonizer life-span when this body that scribbles metallic membrane is applied in ozonizer.
The present invention relates to commerce and industry member and generate the coating method of managing metallic membrane with the ozone in the ozoniferous ozone machine of micro discharges mode, is to generate the shortcoming of managing non-refractory and the improvement of doing at ozone.
The present invention selects silica tube or high oxidation aluminum pipe to generate the body material of pipe as ozone, and select gold as the coating material that is coated on the body material, mainly can high temperature resistantly reach the high conductivity that reaches gold more than 1400 ℃, in the stove mode of burning golden film be burnt till in the body dish again based on quartz or high-alumina material.The golden film that utilizes this method to be plated to because the sticking power height of plated film, still is difficult for damaging and coming off under high temperature and high frequency, high-tension electron bombardment.The definition of aforementioned high frequency is between 15KHz to 40KHz; High-voltage is that the peak is between 10 kilovolts to 18 kilovolts of the peak values.
It is as follows to conclude principal feature of the present invention: one, with silica tube or high oxidation aluminum pipe as dielectric substance, its heatproof can reach more than 1400 ℃; Two, gold electroconductibility height, Stability Analysis of Structures can high voltage withstanding electron bombardment, and has Nai Gaore and oxidation resistant characteristic concurrently; Three, the method for using stove to burn golden film can plate the gold film of thickness more than 0.06 μ m at silica tube and high oxidation aluminum pipe, simultaneously its sticking power is higher than the formed golden film of general vacuum deposition method, and the higher heat of ability and high voltage withstanding electron bombardment and can not produce the local shedding phenomenon; Four, preparation process is simple.
The simple declaration of accompanying drawing:
Fig. 1 is for utilizing the ozoniferous synoptic diagram of micro discharges principle; And
Fig. 2 utilizes employed ozone in the ozonizer of micro discharges principle to generate the synoptic diagram of pipe.
The explanation of unit's assembly numbering:
2 electrodes
4 dielectric substances
6 AC power
10 ozone generate pipe
12 bodys
14 gold medal films
The preferred embodiment explanation:
Fig. 2 is that ozone generates the synoptic diagram of pipe 10, and wherein the material preferably used of this body 12 is quartz or high-alumina, mainly gets its resistant to elevated temperatures characteristic, and Yue Keda is more than 1400 ℃, and body 12 surface coated have golden film 14.
The step that golden film 14 is plated in body 12 surfaces is mainly: the preparation of class coating material; By the cleaning and the drying of plating body 12; With the class coating material brushing on the surface of body 12; Give drying after the brushing again; Place kiln roasting to preset time, promptly finish gold-plated step of the present invention after the cooling by taking out at room temperature in the stove.
In gold plating method of the present invention, at first note the Working environment cleaning, avoid any impurity, stick in by on the surface of plating body 12 as koniology, floating particulate etc., this class impurity produces adverse influence to the adhesion condition of follow-up plated film.
Present method is employed to be contained golden coating and is preferably the gold trichloride (AuCl that contains gold 10～11% 3), diluent can adopt the ethereal oil of sulfur-bearing, is commonly called as salted cake fried in sesame oil cream.These two kinds of raw materials are all having sale on the market, and obtaining of material is quite easy.
Silica tube or high oxidation aluminum pipe need can be brushed through the exsiccant program through cleaning to remove the lip-deep greasy dirt of body, impurity again.With ready gold trichloride (AuCl 3) the solution brushing is on body 12 surfaces.The body of brushing behind the golden film 12 needs at room temperature dry about 30 minutes, can go into stove and burn till.Whether go into the golden film that stove also must pay special attention to brush before burning till even.Going into that stove burns till is to adopt pyritous glazed ceramics process for calcining, and temperature need maintain 780～880 ℃ in the stove, and firing time needs 10 to 14 hours, and most preferred firing time still need burn till the caliber size and the stove size is decided on actual.After burning till in the stove temperature reduce to below 110 ℃, or more preferably below 100 ℃ the time, with the body 12 that burns till by taking out in the stove, and cooling at room temperature.Golden film 14 thickness that form need just to calculate salable product when 0.06 μ m is above, because the thickness deficiency will influence the life-span of its use.
Method of the invention described above and feature; after detailed description and illustration; to be more concrete; it is emphasized that; this embodiment only as illustration in order to better operational stage of the present invention to be described; but not in order to limit the scope of the invention, other any improvement or changes that do not break away from essence of the present invention all should still belong to the scope of protection of the invention.

Claims (9)

1. Yi Zhong Nai Gaore, high-tension quartz or high oxidation aluminum pipe gold plating method comprise:
Modulation contains golden coating;
Clean quartz or high oxidation aluminum pipe;
Should quartz or high oxidation aluminum pipe drying;
The golden coating brushing that contains that modulates is formed on this quartz or high oxidation aluminum pipe and films;
Should quartz or high oxidation aluminum pipe drying;
Check dried should quartz or the high oxidation aluminum pipe whether be coated with desert even, and reject the defectiveness person;
Should dried quartz or the high oxidation aluminum pipe put into stove and burn till 10 to 14 hours, and make between temperature keeps 780 to 880 ℃ in the stove: and when treating that temperature is reduced to below 110 ℃ in the stove, should quartz or the high oxidation aluminum pipe take out and cooling at room temperature.
2. method according to claim 1, use therein to contain golden coating be to contain 10～11% gold trichloride (AuCl 3), diluent is the ethereal oil of sulfur-bearing, i.e. salted cake fried in sesame oil cream.
3. method according to claim 2, wherein should quartz or high oxidation aluminum pipe at room temperature time of drying behind the golden film of brushing be 30 minutes.
4. method according to claim 3 is 12 hours in the time of kiln roasting wherein.
5. method according to claim 4 when treating that wherein temperature is reduced to below 100 ℃ in the stove, is taken out quartz or high oxidation aluminum pipe, and cooling at room temperature.
6. method according to claim 5, the golden film thickness that burn till on its middle tube body surface is greater than 0.06 μ m.
7. a gold-plated quartz or high oxidation aluminum pipe that is applied in ozonizer, the golden film on its tube wall surface forms with the described method of claim 1.
8. a gold-plated quartz or high oxidation aluminum pipe that is applied in ozonizer, the golden film on its tube wall surface forms with the described method of claim 5.
9. gold-plated quartz according to claim 8 or high oxidation aluminum pipe, the thickness of its golden film are at least 0.06 μ m.
CN 01104080 2001-02-20 2001-02-20 Gold plating method of high temperature and high voltage resisting quartz or high-alumina tube and application of the gold plating tube in ozone generator Expired - Fee Related CN1253414C (en)

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CN 01104080 CN1253414C (en) 2001-02-20 2001-02-20 Gold plating method of high temperature and high voltage resisting quartz or high-alumina tube and application of the gold plating tube in ozone generator

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Application Number Priority Date Filing Date Title
CN 01104080 CN1253414C (en) 2001-02-20 2001-02-20 Gold plating method of high temperature and high voltage resisting quartz or high-alumina tube and application of the gold plating tube in ozone generator

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CN1370762A true CN1370762A (en) 2002-09-25
CN1253414C CN1253414C (en) 2006-04-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102775195A (en) * 2011-05-13 2012-11-14 比亚迪股份有限公司 Selective metallization method of surface of ceramic, and ceramic and its application

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102775195A (en) * 2011-05-13 2012-11-14 比亚迪股份有限公司 Selective metallization method of surface of ceramic, and ceramic and its application
CN102775195B (en) * 2011-05-13 2015-07-22 比亚迪股份有限公司 Selective metallization method of surface of ceramic, and ceramic and its application

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