CN104253003A - Preparation method of high-pressure sodium lamp - Google Patents

Abstract

The invention provides a preparation method of a high-pressure sodium lamp, and belongs to the technical field of illumination lamp preparation. The preparation method of the high-pressure sodium lamp adopts the following technical scheme that the preparation method comprises the steps of (1) placing an electrode in electron powder slurry for dip coating, drying the electrode, placing the electrode in a roller for rolling and blowing away electron powder on the surface, (2) welding a pressed electrode head and a niobium tube together, (3) assembling a B/E electrode sleeved with a welding flux ring at the top end of a ceramic tube, allowing the B/E electrode and the ceramic tube to be fused together under high-temperature hermetical sealing of a high-frequency furnace, and assembling a P/E electrode at the other end of the ceramic tube, (4) welding a fixing sheet at a B/E end of an inner tube, welding a getter on a long lead wire of a stem, putting the stem welded with the getter into a mold, putting a small bracket into and welding each welding point, and (5) putting a bulb provided with a lamp holder into a high-frequency machine to allow high-frequency induction current to evapotranspire the getter in the lamp within the set time.

Description

The manufacture method of high-pressure sodium lamp

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Technical field

The invention belongs to lighting manufacture technology field, particularly relate to a kind of manufacture method of high-pressure sodium lamp.

Background technology

High-pressure sodium lamp sends golden white light when using, and has that luminous efficiency is high, little power consumption, life-span are long, mist transmitting performance lures the advantages such as worm by force and not.Be widely used in road, highway, airport, harbour, dock, station, square, street intersection, industrial and mining enterprises, park, garden illumination and plant culture.High colour developing high-pressure sodium lamp is mainly used in gymnasium, show room, public place of entertainment, department store and hotels and other places illumination.

Summary of the invention

The invention provides a kind of manufacture method of high-pressure sodium lamp, object of the present invention is realized by following technical proposals:

(1) electrode is placed dip-coating in electronic powder slurry, dry, be put in cylinder and roll, blow away the electronic powder on surface;

(2) electrode tip pressed and niobium pipe are welded together;

(3) have the B/E electrode of solder ring to be assemblied in earthenware top in cover, under the high temperature of coreless induction furnace holds envelope, B/E electrode and earthenware combine together, and P/E electrode is assemblied in the earthenware other end;

(4) stator is welded to interior pipe B/E to hold, getter is welded on the long lead of stem stem, the stem stem being welded with getter is put into mould, puts into small rack, each solder joint is welded;

(5) bulb installing lamp holder is put into High-frequency machine, in setting-up time, getter in lamp evapotranspires out by high frequency induction current.

Embodiment

Below by specific embodiment, the present invention is further illustrated.

Pipe manufacturer flow process in sodium vapor lamp

Electrode manufactures: electrode dusting, electrode is placed dip-coating in electronic powder slurry, dries, is put in cylinder and rolls, and blows away the electronic powder on surface with N2.Observe electrode surface color, be normal in navy blue, electrode surface can not have remaining electronic powder.

Electrode is suppressed: the electrode tip coating electronic powder is put into electrode press, notices that direction can not put back.Niobium pipe is put into machine pressing, and adjustment position, makes niobium pipe and electrode tip point-blank.Firmly make electrode tip and niobium pipe be pressed together gently, check that the electrode after pressing is with or without being out of shape, coming off.

Electrode spot welding: the B/E pressed, P/E electrode is inserted in laser spot welder station, adjusts the position of two kinds of electrodes and laser head.Electrode, under the protection of AR gas, makes niobium pipe and electrode tip firmly weld together by laser spot welding, and selective examination one-time electrode pulling force per hour, it is qualified to check whether.

Solder ring manufactures

Solder ring is processed: by solder ring powder (stearic yogurt, AL2O3) to entering solder ring machine, adjust ring weight and thickness.Every two hours measure weight and the thickness of solder ring, to guarantee the molten envelope quality of interior pipe.Solder ring is dried, and the solder ring ceramic rod string processed is put into furnace well, regulates furnace temperature, vacuum degree and baking time.Often criticize the solder ring weight after selective examination baking.Qualified storage is stand-by.

Interior pipe assembling

Earthenware is put into machine station, cover has the B/E electrode of solder ring to be assemblied in earthenware top by manipulator automatically, and under the high temperature of coreless induction furnace A holds envelope, B/E electrode and earthenware combine together, and P/E electrode is assemblied in the earthenware other end by manipulator automatically.Liquid argon injects in earthenware by liquid argon syringe, and sodium amalgam injects in earthenware by sodium amalgam syringe.Under the effect of coreless induction furnace B, P/E electrode and the earthenware other end combine together, and manipulator is vented on earthenware P/E end to air exhauster station automatically.After exhaust terminates, xenon (neon argon gas) qi of chong channel ascending adversely cut down qualified to vacuum degree in pipe qi of chong channel ascending adversely.After qi of chong channel ascending adversely, leak detection, cold seal.Remove the unnecessary niobium pipe clout of interior pipe by hand.

The production procedure of sodium vapor lamp lamp

Stem stem manufactures: loudspeaker processed, and oviduct is inserted horn machine.Heating, expansion loudspeaker, cutting, blanking.Horn diameter is measured in per tour, length, angle twice.Coremaking post, puts into cutting machine by soft material blast pipe, cutting blast pipe.Loudspeaker, seal wire, blast pipe are put into feed mechanism, and heating, the blanking of coremaking post enters annealing furnace shaping.Per tour selective examination stem stem stress twice.

Wick manufactures: stator is welded to interior pipe B/E and holds, put into large support successively in a mold, fixed band, interior pipe.Getter is welded on the long lead of stem stem, notes firm welding.The stem stem being welded with getter is put into mould, puts into small rack, stitch welding machine welds each solder joint, and wick line end personnel take out wick and check wick from mould.

Print: upper cell-shell employee by cell-shell on conveyer chain, printer prints cell-shell, and electric heater is to cell-shell bake out

Sealing, upper wick.Wick final inspector work is checked again to wick, to wick baking oven conveyer chain on eligible.

Sealing: wick inserts in sealing machine station by sealing personnel, then cell-shell is put into sealing machine clip, and duration and degree of heating is fired, clamping is shaped, and annealing, eliminates stress.

Exhaust: by the pull-up of wick seal wire, expect air exhauster by sealing on cell-shell.Hunt leak, vacuumize, burned tip.

Dress head: the lamp burned tip shape after inspection exhaust.Length.Whether closure threads is qualified, and exhaust bulb is loaded onto lamp holder, puts into head assembling machine after managing straight seal wire.Cut off unnecessary wire by hand.Leak detection, lamp holder scolding tin.

Roasting high frequency: the bulb installing lamp holder is put into High-frequency machine, opens inductor and start roasting high frequency, in setting-up time, getter in lamp evapotranspires out by high frequency induction current.Quality (choose without minute surface, black minute surface, minute surface is not congruent) after the roasting high frequency of inspection.

Compound light: leak detection, chooses the lamp that color is bad, by the lamp after leak detection on compound light machine, by the age do not worked, can light and work as certified products, otherwise work as waste product after compound light machine compound light automatically by the lamp that do not work separately.

Packaging: packaging employee examines entirely to the lamp after compound light, is mainly presentation quality, certified products lamp is packed; Substandard products are examined after doing over again entirely again, and eligible is packed.Packaged lamp treats that quality inspection is inspected by random samples.

Claims (1)

1. a manufacture method for high-pressure sodium lamp, is characterized in that comprising the following steps:

(1) electrode is placed dip-coating in electronic powder slurry, dry, be put in cylinder and roll, blow away the electronic powder on surface;

(2) electrode tip pressed and niobium pipe are welded together;

(3) have the B/E electrode of solder ring to be assemblied in earthenware top in cover, under the high temperature of coreless induction furnace holds envelope, B/E electrode and earthenware combine together, and P/E electrode is assemblied in the earthenware other end;

(4) stator is welded to interior pipe B/E to hold, getter is welded on the long lead of stem stem, the stem stem being welded with getter is put into mould, puts into small rack, each solder joint is welded;

(5) bulb installing lamp holder is put into High-frequency machine, in setting-up time, getter in lamp evapotranspires out by high frequency induction current.