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Manufacturing method of high-power gas discharge lamp electrode spring

A technology for gas discharge lamps and manufacturing methods, applied in the manufacture of discharge tubes/lamps, components of gas discharge lamps, gas discharge lamps, etc., can solve problems such as insufficient surface area, insufficient bearing capacity, and fusible wires, etc., to achieve increased Effects of large surface area, extended life, and improved heat dissipation

Active Publication Date: 2020-09-29
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

However, with the expansion of the application range of high-power electrodes and the continuous introduction of new electrodes, the traditional four-spring structure can no longer meet the new design requirements.
Because the monofilament is too thick, the surface area is not enough; the rewinding wire is bound to be thinner, the bearing capacity is not enough, and the fusible wire under high heat

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for manufacturing a high-power electrode spring, comprising:

[0024] Preparation of the small spring:

[0025] Winding: On the wire winding machine, the tungsten wire is evenly wound on a molybdenum core wire. In this embodiment, the diameter of the tungsten wire is 0.25mm, the pitch is 0.28mm, the diameter of the molybdenum core wire is 0.74mm, and the molybdenum core wire consists of a core The wire feeding reel winds on the receiving reel through a series of mechanisms such as guide wheel, mandrel, wire feeding nozzle, guide wheel, core wire speed control wheel, guide wheel, etc., and the wire reel wrapped with tungsten wire is installed in the headstock , the headstock rotates continuously at high speed, so that the tungsten wire is tightly wound on the core wire through the guide wheel.

[0026] Shaping: Heat-setting the re-wound wire obtained by winding in a continuous hydrogen furnace, controlling the temperature at 1000°C, and heat-setting speed at 3m...

Embodiment 2

[0035] A method for manufacturing a high-power electrode spring, comprising:

[0036] Preparation of small springs:

[0037] Winding: Wind a tungsten wire with a diameter of 0.3mm evenly on the molybdenum core wire according to the pitch (the pitch is a wire diameter + spacing) of 0.35mm. The thickness is 0.02mm, which is convenient for the small spring to be inserted into the thick tungsten wire;

[0038] Shaping: using a continuous hydrogen furnace, controlling the temperature at 1000°C, and heat-setting speed at 4.5m / min, heat-setting the re-wound wire obtained by winding;

[0039] Cutting: Cut the heat-set rewinding wire according to the specified length, which is determined by the length required for winding the subsequent spring;

[0040] Dissolving core wire: place the molybdenum core wire in the cut rewinding wire in a mixed aqueous solution of nitric acid and hydrofluoric acid for chemical dissolution treatment, remove the molybdenum core wire, and obtain a small sp...

Embodiment 3

[0047] A method for manufacturing an electrode spring of a high-power gas discharge lamp, comprising:

[0048] Preparation of small springs:

[0049] Winding: Wind the tungsten wire with a diameter of 0.1mm evenly on the molybdenum core wire with a pitch of 0.12mm. The diameter of the molybdenum core wire is determined by the subsequent thick tungsten wire, which is generally 0.01mm thicker than the thick tungsten wire, which is convenient for making small springs Inserted into the thick tungsten wire;

[0050] Shaping: using a continuous hydrogen furnace, controlling the temperature at 900°C, and heat-setting speed at 2m / min, heat-setting the re-wound wire obtained by winding;

[0051] Cutting: Cut the heat-set rewinding wire according to the specified length, which is determined by the length required for winding the subsequent spring;

[0052] Dissolving core wire: place the molybdenum core wire in the cut rewinding wire in a mixed aqueous solution of nitric acid and hydr...

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Abstract

The invention relates to a manufacturing method of a high-power gas discharge lamp electrode spring. The method comprises the following steps: uniformly winding a tungsten wire on a molybdenum core wire, carrying out heat setting on a rewound wire obtained by winding, cutting the rewound wire subjected to heat setting, carrying out chemical dissolution treatment on the molybdenum core wire in thecut rewound wire to obtain a small spring, sleeving a thick tungsten wire with the small spring, and winding the thick tungsten wire into an inner-layer spring according to a designed number of turns,winding parts of the outer-layer spring on the outer side of the inner-layer spring through a thick tungsten wire, finishing winding of the remaining outer-layer spring through the thick tungsten wire sleeved with the small spring according to the designed number of turns, cutting off a tail wire through pliers, and finishing winding. Compared with the prior art, the high-power electrode spring manufactured by the method has the advantages that the heat dissipation surface area of the spring is increased, and the service life of the tungsten wire used by the spring is prolonged to the maximumextent.

Description

technical field [0001] The invention relates to a manufacturing method of an electrode spring, in particular to a manufacturing method of an electrode spring of a high-power gas discharge lamp. Background technique [0002] The most critical part of the traditional gas discharge lamp is the arc tube, and the most critical part of the arc tube is the electrode. The electrode is generally composed of a mandrel and a spring. When the electrode is working, the end surface of the mandrel extension head is in contact with the arc. At this time, the heat applied to it by ion bombardment and gas heat conduction can be quickly conducted to the rear of the electrode through the mandrel, and the excess heat on the electrode is radiated by the spring. In this way, the temperature of the emissive layer will not be too high, and the emissive material will not be consumed too quickly, so that the electrodes can be maintained at the correct working temperature. [0003] Therefore, for a g...

Claims

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Application Information

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IPC IPC(8): H01J9/02H01J61/52
CPCH01J61/526H01J9/02
Inventor 徐丽娜奚蓓蕾施健胡晓
Owner 上海亚尔精密零件制造有限公司