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Welding method of four-section ceramic metal halide lamp electrode

A technology for ceramic metal halide lamps and welding methods, applied in welding equipment, welding equipment, auxiliary welding equipment, etc., can solve problems such as cracking of ceramic shells, inability to match ceramic sleeves, and inability to use high-power ceramic metal halide lamps, etc., to achieve increased Stability, ensuring electrical conductivity, and the effect of not being easily broken

Active Publication Date: 2019-10-18
上海亚尔精密零件制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, such a design cannot be used on high-power ceramic metal halide lamps
After the diameter of the niobium rod and molybdenum spiral is enlarged, it cannot match the ceramic sleeve properly, and the ceramic shell cracks during the lighting process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The method for welding electrodes of a four-section ceramic metal halide lamp is to weld and connect the electrodes to the molybdenum spiral, and further includes the following steps:

[0045] 1. Welding of ceramic alloy and molybdenum spiral:

[0046] 1) Feeding: fix the ceramic alloy and molybdenum screw, and send the two materials to the designated position;

[0047] Use 4.8MM tungsten copper briquetting block, use 1.2MMV groove as the lower briquetting block, and the rectangular upper briquetting block clamps the workpiece;

[0048] Clamp 1 clamps the ceramic alloy at a distance of 0.85MM from the end face; clamp 2 clamps the molybdenum spiral at a distance of 1.15MM from the end face.

[0049] 2) Positioning: make the ceramic alloy closely contact with the end face of the molybdenum spiral;

[0050] The first clamp rotates the ceramic alloy feeding 60 degrees and fixes it to a horizontal position; the second clamp sends the molybdenum spiral to a position in line w...

Embodiment 2

[0076] A method for welding the electrode of a four-section ceramic metal halide lamp. The electrode and the molybdenum helix are welded and connected, and also include the welding steps of the molybdenum helix and the ceramic alloy and the welding steps of the ceramic alloy and the niobium rod, wherein the material of the ceramic alloy is made of 45wt% Composition of alumina and 55 wt% molybdenum:

[0077] (1) Welding of ceramic alloy and molybdenum spiral

[0078] (1-1) Feeding: fix the ceramic alloy and molybdenum screw and send it to the designated position;

[0079] (1-2) Positioning: The ceramic alloy is in close contact with the end face of the molybdenum spiral;

[0080] (1-3) Discharge: The power supply discharges, conducts current through the clamp, and generates resistance heat on the contact surface between the ceramic alloy and the molybdenum spiral. When the power supply is discharged, a seven-stage output setting is adopted:

[0081] T1 stage: Clamp the cerami...

Embodiment 3

[0095] A method for welding the electrode of a four-section ceramic metal halide lamp. The electrode and the molybdenum helix are welded and connected, and also include the welding steps of the molybdenum helix and the ceramic alloy and the welding steps of the ceramic alloy and the niobium rod, wherein the material of the ceramic alloy is made of 45wt% Composition of alumina and 55 wt% molybdenum:

[0096] (1) Welding of ceramic alloy and molybdenum spiral

[0097] (1-1) Feeding: fix the ceramic alloy and molybdenum screw and send it to the designated position;

[0098] (1-2) Positioning: The ceramic alloy is in close contact with the end face of the molybdenum spiral, and the material is surface treated to control the surface of the material to be smooth, uniform in color, and free of oxidation and oil stains;

[0099] (1-3) Discharge: The power supply discharges, conducts current through the clamp, and generates resistance heat on the contact surface between the ceramic al...

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Abstract

The invention relates to a welding method of a four-section ceramic metal halide lamp electrode. The welding method comprises the step that the electrode is welded and connected to a molybdenum spiral, the welding method further comprises the steps of welding between the molybdenum spiral and ceramic alloy and welding between the ceramic alloy and a niobium rod, and then the four-section ceramic metal halide lamp electrode is manufactured and obtained. Compared with the prior art, the welding strength and the junction appearance of the four-section ceramic metal halide lamp electrode manufactured and obtained through the method completely meet the requirements of customers in subsequent assembling and using processes; and the four-section ceramic metal halide lamp electrode can smoothly pass through a small-aperture ceramic sleeve and is not prone to breakage.

Description

technical field [0001] The invention relates to an electrode manufacturing method, in particular to a welding method for electrodes of a four-section ceramic metal halide lamp. Background technique [0002] Ceramic metal halide lamp is a relatively advanced light source, and its superb performance such as high light efficiency, high color rendering and long life has been recognized by people. [0003] Due to its high color rendering and low color temperature, it is the only lamp that can replace incandescent and halogen lamps. Therefore, in this regard, low-power ceramic metal halide lamps have a very broad market, and the technology is relatively mature. [0004] High-power ceramic metal halide lamps also have very good color rendering, and the light color is very stable. The change of color temperature during the lifetime is ±200K, and the maintenance rate of luminous flux is also very good. The light decay at the end of life can be maintained at more than 80%, while th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K28/02B23K37/00H01J61/073H01J9/02H01J9/24
CPCB23K28/02B23K37/00H01J9/02H01J9/24H01J61/073
Inventor 奚蓓蕾张斓严永原何健荣
Owner 上海亚尔精密零件制造有限公司
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