High-efficiency infrared tungsten filament and manufacturing method thereof

Abstract

The invention discloses a high-efficiency infrared tungsten filament and a manufacturing method thereof. The existing tungsten filament is fragile and is apt to be broken, the thermal efficiency is low, the total radiation efficiency is low, the infrared radiation efficiency is low and the color temperature is high. The content of iron element in the tungsten filament provided by the invention is zero. Especially, the tungsten filament is wound to be a double-helix structure. During manufacturing and in the hydrogen annealing process of the tungsten filament, temperature-resistant mud is used for fully screening the internal part of a hydrogen annealing furnace to prevent the iron element from being exposed in a hearth. Especially, a molybdenum filament is used as a carrier during the winding of the tungsten filament. The tungsten filament provided by the invention has the advantages that the total radiation efficiency and the infrared radiation efficiency are greatly improved, and compared with common filaments, 30% of energy can be saved; the quantity of visible light is reduced, the light pollution is reduced and the use effect is greatly improved; since the energy conversion efficiency is improved, the heat in an infrared bulb is relatively reduced and the service life of the infrared bulb is improved; and the toughness of the filament is greatly improved, the service life of the bulb is greatly improved and a great number of manpower, material resources and social resources are saved.

Description

technical field [0001] The invention relates to the manufacture of tungsten wire, in particular to a high-efficiency infrared tungsten wire and a manufacturing method thereof. Background technique [0002] Infrared rays are one of the many invisible rays in the sun's rays. The wavelength of infrared rays on the solar spectrum is greater than that of visible rays, ranging from 0.75 to 1000 μm. Infrared rays can be divided into three parts, namely, near infrared rays with a wavelength of (0.75-1)~(2.5-3)μm; mid-infrared rays with a wavelength of (2.5-3)~(25-40)μm; far infrared rays with a wavelength of ( 25-40) ~ l000μm. [0003] In 1993, Hangzhou Aopu Electric Co., Ltd. invented the Yuba with infrared light bulbs as the heat source. Since then, Yuba has entered thousands of households as a standard configuration of modern bathrooms. Infrared light bulbs on the market generally have defects such as low thermal efficiency (low total radiation efficiency and low infrared radi...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved and the technical task proposed by the present invention are to overcome the defects of the existing tungsten wire that are brittle and easy to break, the thermal efficiency is reduced, the total radiation efficiency is low, the infrared radiation efficiency is low, and the color temperature is high, and to provide a high-efficiency infrared tungsten wire and its manufacturing method