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Coreless winding method of coiled-coil filament

A winding method and double-helix technology, applied in the field of lighting bulb filament production, can solve problems such as environmental protection and waste, and achieve the effects of reducing production processes, reducing environmental protection treatment costs, and reducing usage

Inactive Publication Date: 2011-06-01
ANHUI HUSN HUAGUANG ENERGY SAVING TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the existing problems and defects in the production of the existing double helix filament, the present invention provides an effective filament manufacturing process and method, adopting the filamentless winding technology to solve the waste and problems existing in the traditional core winding. environmental issues

Method used

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  • Coreless winding method of coiled-coil filament
  • Coreless winding method of coiled-coil filament

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Embodiment Construction

[0019] see figure 1 , a coreless winding method for a double helix filament, specifically comprising the following steps:

[0020] (1) With a 500-meter-long molybdenum wire as the core wire, a 5,000-meter-long tungsten wire is wound into a spiral filament on a wire winding machine, and then sent to an annealing furnace to be heated to 1350-1400 °C, and the temperature is 3-100 °C. Surface treatment of the spiral filament at a speed of 5 m / min;

[0021] (2) Using the iron core needle as the core wire, the surface-treated helical filament and another 5,000-meter-long tungsten wire are wound into a double helical filament on a coreless wire winding machine, and then the iron core is removed. core needle, and cut the double helix filament into several sections;

[0022] (3), after the sheared double helix filament is cleaned with clear water, dry it with a drying oven;

[0023] (4) Arrange the dried double-helical filaments neatly, divide them into groups and place them flat in...

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Abstract

The invention discloses a coreless winding method of a coiled-coil filament. In the process of secondary winding of the filament, the coreless winding process is adopted, and two-pass molybdenum wires acting as core wires, a coiled-coil filament winding machine and a shearer are not used any more, but the automatic core pulling operation of a coreless filament winding machine is directly used for winding. The method has the following beneficial effects: the process is easy to operate, the usage amount of the rare metal molybdenum for filament production is greatly reduced, and complex equipment is simultaneously reduced, thus reducing the production procedures and saving the raw materials; and in addition, the wastewater discharge is reduced, the disposal costs for environmental protection in the process of production is reduced, and at the same time, the production speed and the product quality are improved.

Description

technical field [0001] The invention relates to a manufacturing method of a lighting bulb filament, in particular to a coreless winding method of a double-helix filament. Background technique [0002] Nowadays, domestic double-helix filament manufacturers use tungsten wire and two molybdenum wires for secondary winding in the manufacturing process of double-helix filaments, and then separate cutting process to complete, because molybdenum wire is only used as core wire Its production process not only requires a lot of complicated production equipment, but also wastes a lot of rare metal materials. At the same time, in the process of processing molybdenum core wire, it also generates a lot of environmental protection treatment costs. In addition, the current domestic double helix scissors machine The production technology of the equipment is not mature enough, and the price of imported equipment is very high. Therefore, the cost price of the filament remains high. [0003] W...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01K3/02H01J9/08
Inventor 沈会
Owner ANHUI HUSN HUAGUANG ENERGY SAVING TECH
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