CN101712091B - Electronic gun cover plate assembling mold and assembling method - Google Patents

Abstract

The invention relates to a welding mold and a welding method thereof, in particular to a special mold and technology for welding electronic gun cover plate welding. The electronic gun cover plate assembling mold comprises a positioning plate, a fixing screw, solders, a cover mold and a solder ring, wherein a groove is arranged in the positioning plate; the lower end of a lead electrode of the electronic gun is arranged in the groove; the inner wall of the groove of the positioning plate is provided with a screw hole; the fixing screw penetrates through the screw hole to fix the lead electrode; the electronic gun cover plate is sleeved on the positioning plate; the solders are added to the connecting part of the upper end of the electronic gun cover plate and the lead electrode, the solder ring is arranged on the upper end of a ceramic sealing element of the lead electrode, the cover mold is sleeved outside the ceramic sealing element of the lead electrode, and the solders are added on the solder ring. The electronic gun cover plate welded and formed by the welding mold has the advantages that the ceramic sealing element has the characteristics of good tensile strength, favorable pressure resistance and high thermal shock property, the requirements of important technical indexes on the centrad of the accelerating tube electronic source optical system, the effective emission surface distance of the cathode, and the like are satisfied, the technology uniformity is good, and the finished product rate is high.

Description

Electronic gun cover plate assembling mold and assembly method

Technical field

The present invention relates to the method for a kind of weld mold and welding thereof, relate in particular to electronic gun cover plate and weld special-purpose module and welding procedure.

Background technology

In the processing electron gun, welding insulation porcelain spare technology is essential, and the welding process complicacy is higher to technological requirement; More to production of products method in this in the prior art, porcelain spare is a lot of with the hardware welding method, and the metalized coated acquisition of porcelain spare sealing surface is also had nothing in common with each other; High temperature molybdenum manganese method is generally arranged; Through metal ion sputter, vacuum coating etc., active method is also arranged, characteristics and application are respectively arranged; High temperature molybdenum manganese method also commonly used and active method are carried out the porcelain sealing assembly, vacuum brazing, but the electronic gun cover plate structural member tensile strength of these methods making moulding is not enough in actual fabrication, and the vacuum seal effect is bad, and ratio of briquetting is lower, and physical dimension does not reach the frock demand.

Summary of the invention

The technical scheme that solves:

The invention provides a kind of electronic gun cover plate assembling mold and assembly technology, it is low to have solved above-mentioned rifle covering plate structure spare tensile strength, and physical dimension is joined problems such as the type rate is low, and ratio of briquetting is low.

The present invention is through following technical scheme technical solution problem

1, electronic gun cover plate assembling mold is characterized in that: comprise location-plate, press strip, fixed screw, scolder, packing ring cover die, scolder ring; The lower end that the lead-in wire electrode of groove, electron gun is set in the described location-plate is placed in the groove; On the groove inwall of location-plate, have screw, fixed screw passes screw anchor leg electrode, is nested with electronic gun cover plate on the location-plate; Scolder is added on electronic gun cover plate upper end and lead-in wire electrode junction; The upper ends scolder ring of lead-in wire electrode porcelain sealing is nested with cover die in the outside of lead-in wire electrode porcelain sealing, and the scolder ring becomes convex form, and scolder is added on scolder ring convex top; Described press strip is arranged in the groove on the location-plate; Packing ring is placed on the scolder ring male member side end face.

The method of electronic gun cover plate assembling mold assembling electronic gun cover plate of the present invention, it is characterized in that: step is following:

1), the lead-in wire electrode is put into the location-plate upper groove on two; And put into press strip, circular hole is inserted on the location-plate in the rifle cover plate, and two circular holes of adjustment lead-in wire electrode are concentric; The porcelain sealing that is with the scolder ring is inserted in two lead-in wire electrodes respectively, and the screw that is locked makes the press strip two electrodes fixed;

2), with on the above-mentioned male member side end face packing ring being installed with the scolder ring, on scolder ring lug boss, add scolder, in cover die was pressed in gasket sleeve, cover die was nested with in the outside of porcelain sealing;

3), between cover die and rifle cover plate, add scolder;

4), place scolder on the soldered with two lead-in wire electrodes and porcelain sealing cooperation place;

5), put into the vacuum brazing furnace welding that heats up, the welding of this electronic gun cover plate is promptly accomplished in welding 15-30 hour.

Beneficial effect

Electronic gun cover plate through weld mold welding fabrication provided by the invention; Have ultrahigh vacuum seal reliability, porcelain sealing tensile strength, withstand voltage, characteristics that thermal shock resistance properties is good; Can satisfy the accelerating tube electron source optical system centrad and the effective surface of emission of negative electrode apart from etc. the requirement of important technology index, process consistency is good, yield rate is high.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Among the figure rifle 1 be location-plate, 2 for press strip, 3 for fixed screw, 4 for the lead-in wire electrode, 5 for the rifle cover plate, 6 for scolder, 7 for the porcelain sealing, 8 for packing ring, 9 for cover die, 10 for the scolder ring.

The specific embodiment

Below in conjunction with description of drawings to further explain of the present invention:

Electronic gun cover plate assembling mold also comprises location-plate 1, fixed screw 3, scolder 6, cover die 9, scolder ring 10; The lower end that the lead-in wire electrode of groove, electron gun is set in the described location-plate 1 is placed in the groove; On the groove inwall of location-plate 1, have screw; Fixed screw 3 passes screw anchor leg electrode, is nested with electronic gun cover plate on the location-plate 1, and scolder 6 is added on electronic gun cover plate upper end and lead-in wire electrode junction; The upper ends scolder ring 10 of lead-in wire electrode porcelain sealing is nested with cover die 9 in the outside of lead-in wire electrode porcelain sealing, adds scolder 6 on the scolder ring 10; Press strip 2 is arranged in the groove on the location-plate 1, and packing ring 8 is placed on the upper end of scolder ring 10.

The method of electronic gun cover plate assembling mold assembling electronic gun cover plate, step is following:

1), the lead-in wire electrode is put into location-plate 1 upper groove on two; And put into press strip 2, circular hole is inserted on the location-plate 1 in the rifle cover plate 5, and two circular holes of adjustment lead-in wire electrode are concentric; The porcelain sealing that is with scolder ring 10 is inserted in two lead-in wire electrodes respectively, and the screw 3 that is locked makes press strip 2 two electrodes fixed;

2), on scolder ring 10 lug bosses, add scolder 6 with above-mentioned with packing ring 8 is installed on the male member side end face of scolder ring 10, in cover die 9 was pressed in packing ring 8 covers, cover die 9 was nested with in the outside of porcelain sealing 7;

3), between cover die 9 and rifle cover plate, add scolder 6;

4), place scolder 6 on the soldered with two lead-in wire electrodes and porcelain sealing cooperation place;

5), put into the vacuum brazing furnace welding that heats up, the welding of this electronic gun cover plate is promptly accomplished in welding 15-30 hour.

Claims (2)

1. electronic gun cover plate assembling mold is characterized in that: comprise location-plate (1), press strip (2), fixed screw (3), scolder (6), packing ring (8), cover die (9), scolder ring (10); The lower end that the lead-in wire electrode of groove, electron gun is set in the described location-plate (1) is placed in the groove; On the groove inwall of location-plate (1), have screw; Fixed screw (3) passes screw anchor leg electrode; Be nested with electronic gun cover plate (5) on the location-plate (1), scolder (6) is added on electronic gun cover plate upper end and lead-in wire electrode junction, and the upper ends scolder ring (10) of lead-in wire electrode porcelain sealing is nested with cover die (9) in the outside of lead-in wire electrode porcelain sealing; Scolder ring (10) becomes convex form, and scolder (6) is added on scolder ring (10) convex top; Described press strip (2) is arranged in the groove on the location-plate (1); Packing ring (8) is placed on scolder ring (10) the male member side end face.

2. utilize the method for electronic gun cover plate assembling mold assembling electronic gun cover plate as claimed in claim 1, it is characterized in that: step is following:

1), the lead-in wire electrode is put into location-plate (1) upper groove on two; And put into press strip (2); The interior circular hole of rifle cover plate (5) is inserted on the location-plate (1); And two circular holes of adjustment lead-in wire electrode are concentric, and the porcelain sealing that will be with scolder ring (10) is inserted in two lead-in wire electrodes respectively, and the screw that is locked (3) makes press strip (2) two electrodes fixed;

2), with on the above-mentioned male member side end face packing ring (8) being installed with scolder ring (10), on scolder ring (10) lug boss, add scolder (6), in cover die (9) was pressed in packing ring (8) cover, cover die (9) was nested with in the outside of porcelain sealing (7);

3), between cover die (9) and rifle cover plate, add scolder (6);

4), place scolder (6) on the soldered with two lead-in wire electrodes and porcelain sealing cooperation place;

5), put into the vacuum brazing furnace welding that heats up, the welding of this electronic gun cover plate is promptly accomplished in welding 15-30 hour.