CN102881555A

CN102881555A - Novel ceramic metal halogen lamp

Info

Publication number: CN102881555A
Application number: CN2011101995795A
Authority: CN
Inventors: 孙希干
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-07-15
Filing date: 2011-07-15
Publication date: 2013-01-16

Abstract

The invention relates to a novel ceramic metal halogen lamp, and belongs to the technical field of electric power supplies. The novel ceramic metal halogen lamp comprises a ceramic electric arc pipe inner tank with electrodes, wherein the ceramic electric arc pipe inner tank is sintered in an integrated manner and is connected with a high-air-tightness electric arc pipe in a sealed manner; integrated sintering for the ceramic electric arc pipe inner tank is that an inner tank blank with three sleeves is produced by a die injection method by adopting a high-light-transmittance ceramic material; after the blank is formed, the electrodes are inserted into the sleeves at two ends which are sealed, and the middle sleeve is not sealed; and finally, the integrated ceramic inner tank is formed by sintering. The formed inner tank is arranged in a high-sealing-property glove box; after medicinal pills are injected into the middle sleeve end, air is filled into the middle sleeve end, and ceramic plugs with welding material rings are inserted into the sleeves at the two ends, the welding material rings are sintered to be sealed, so that the ceramic metal halogen lamp electric arc pipe is produced; by the production method, the electrode part and a ceramic pipe are firmly integrated, so that relatively high air tightness is achieved; and the electrodes and the medicinal pills of the ceramic metal halogen lamp are extremely low in consumption after the lamp is switched on for a long time, photoelectric parameters are increased, the stability is improved, and the economical service life of the lamp is greatly prolonged.

Description

A kind of new ceramics Metal halogen lamp

Technical field

The present invention relates to a kind of ceramic gold-halogen lamp, belong to the electric source lighting technical field.

Background technology

Existing ceramic gold-halogen lamp all be adopt carry out first the ceramic liner blank again high temperature sintering become ceramic liner, ceramic liner carries out the arc tube for ceramic metal halide lamp sealing-in in the high sealing glove box, the method is traditional ceramics Metal halogen lamp production method, because the equipment that each company adopts and operating procedure are different, make the product of production that very big difference be arranged, at present be international light source giant such as the Philip, Ou Silang, the ceramic gold-halogen lamp of the productions such as U.S. GE is taken as the leading factor, domestic special such as Shelley, Prose, the ceramic gold-halogen lamp that Nanjing longitude and latitude etc. are produced for representative is main, still there is a big difference but compare with foreign technology, be mainly manifested in photoelectric parameter on the low side, homogeneity of product and stability are not enough, and the light decay large economy is undesirable useful life; And these main causes, that the light transmittance of ceramic liner own, air-tightness, resistance to pressure are good not on the one hand, glove box quality index problem in the electric arc tube process for sealing on the other hand, used metal halogen lamp pole, pill, encapsulant etc., most important is the escape of consumption of electrode and pill, namely will solve electrode package air-tightness problem.

Summary of the invention

The objective of the invention is to realize the integrated ceramic electric arc tube new ceramics gold-halogen lamp light source of long-life electrode and high-air-tightness sealing-in.Comprise: band two end electrodes ceramic arc tube inner bag integral sintering and the sealing-in of high-air-tightness electric arc tube, ceramic arc tube inner bag integral sintering is to adopt high transmission rate ceramic liner blank, inner bag adopts three sleeves, good with the electrode sealing-in in the sleeve of symmetrical two therein after the blank typing, the not sealing-in of sleeve at middle part, and then the ceramic liner that is sintered into one, this moulding inner bag through the degasification that is up to the standards after in the high sealing glove box, be filled with the gas insertion with sintering scolder ring sealing behind the ceramic plug of scolder ring from the sleeve end injection pill at middle part, thereby produce arc tube for ceramic metal halide lamp, this production method makes the electrode part form firm one with earthenware, the middle part sleeve seals through sintering by same material ceramic plug with the scolder ring of same recipe, make arc tube for ceramic metal halide lamp electrode and the pill of production extremely low in long-time bright light post consumption amount, photoelectric parameter also increases and has increased stability, light decay delays and reduces, and has greatly prolonged the useful life of this product.

Description of drawings

Fig. 1 is integrated ceramic electric arc tube inner bag blank structural representation;

Fig. 2 is ceramic arc tube inner bag one sintering structure schematic diagram;

Fig. 3 is electric arc tube sealing structure schematic diagram;

Fig. 4 is electric arc tube G12 bulb envelope structural representation;

Fig. 5 is electric arc tube E40 bulb envelope structural representation;

1 is integrated transparent ceramic inner bag blank among the figure, and 2-1,2-2 and 2-3 are ceramic sleeve; 3 is electrode; 4 are the crunch seal plug with the scolder ring; 5 are encapsulant (comprising the encapsulants such as Metal halogen lamp pill and gas) in the halogen electric arc tube; 6 are the good ceramic arc tube of sealing-in; 7 metallic supports; 8 is getter; 9 is the E40 lamp holder; 10 is the G12 lamp holder;

Embodiment

The invention will be further described below in conjunction with drawings and Examples.

A kind of new ceramics Metal halogen lamp, integrated transparent ceramic liner blank 1 requires to adopt high-purity alundum (Al2O3) different grain size to press the ceramic batch that the fine and close prescription of high transmission rate is produced, adopt the mould injection method to produce the inner bag blank, wherein with three sleeve 2-1,2-2,2-3;

After the blank demoulding, in two ends sleeve 2-1,2-2, insert two prefabricated electrodes 3; Sleeve is constant in the middle of reserving, and prefabricated one blank is placed in the high temperature sintering furnace, first in hydrogen environment with the constant temperature isostatic sintering again with high-temperature sintering process the blank transparent ceramic inner bag that is sintered into one;

The one transparent ceramic inner bag with two electrodes of moulding, through be up to the standards and degasification after, in the high sealing glove box, inject pill gas injection encapsulant 5 from the sleeve 2-3 end at middle part, behind the crunch seal plug 4 of insertion with the scolder ring, sintering scolder ring seals and shifts out the good ceramic arc tube of sealing-in 6 from glove box;

Ceramic arc tube can be packaged into G12 bulb 10 or E40 bulb 9,7 metallic supports in the E40 bulb wherein, and 8 is getter, also can be packaged into the ceramic gold-halogen lamp bulb of various cell-shell shapes;

Wherein will note several important steps in the production technology: earthenware adopts transparent ceramic, and light transmittance is more than 95%; Electrode adopts negative electrode special protection tungsten-molybdenum alloy wound form long-life high-quality electrode, can buy ripe patent electrode product; The electrode outer surface is evenly coated the ceramic bonding material of same recipe, insert the ceramic liner sleeve and guarantee bonding even without bubble, then in the Special seal ceramic sintering furnace, adopt the high temperature isostatic pressing sintering method in the present hot pressing sintering method, the method can make idiosome be subject to the pressure of isotropic, the microstructure of pottery is more even, at 1000 ℃ of left and right sides sintering of hot pressing 20Mpa hydrogen environment until form ceramic of compact structure inner bag, the inner bag that sintering is finished will particularly the air-tightness pressure test be qualified through the product conformity testing, just can enter electric arc tube sealing-in operation through after the degasification; The sealing-in in glove box of electroded one ceramic liner, glove box vacuum degree requires 10 ^-4More than the atmospheric pressure, sealing-in electric arc tube in super-clean environment.

Claims

1. the present invention is a kind of new ceramics Metal halogen lamp, it is characterized in that using the high transmission rate ceramic batch to adopt the mould injection method to produce inner bag blank with three sleeves, elder generation's electrode insertion sealing-in in the sleeve of symmetrical two is good after the blank typing, the not sealing-in of sleeve at middle part, then high temperature sintering is integral ceramic liner, this moulding inner bag injects pill from the sleeve end at middle part and is filled with gas and inserts ceramic plug with the scolder ring, sintering scolder ring sealing electric arc tube in the high sealing glove box.

2. a kind of new ceramics Metal halogen lamp according to claim 1, it is characterized in that utilizing the ceramic liner blank with three sleeves, first utilize symmetrical two end electrodes same recipe ceramic material and sleeve sealing-in good, sleeve is constant in the middle of reserving, prefabricated one blank is placed in the high temperature sintering furnace, first in hydrogen environment, adopts again high-temperature sintering process the transparent ceramic inner bag that is sintered into one of the blank with two electrodes with the constant temperature isostatic sintering.

3. a kind of new ceramics Metal halogen lamp according to claim 1, it is characterized in that the one ceramic liner that sinters after the also degasification that is up to the standards carries out the electric arc tube sealing-in in the high sealing glove box, inject the pill gas injection from the sleeve end at middle part, insertion is with the sealed ceramic plug of scolder ring, and sintering scolder ring evenly seals sleeve.

4. a kind of new ceramics Metal halogen lamp according to claim 1 is characterized in that the good electric arc tube of sealing-in can be packaged into the bulb of the various cell-shell shapes such as single-ended, both-end, E40 through after the assay was approved.