Lanthanum-Doped Tungsten Micro Advantages and Positive Effects

Lanthanum -doped tungsten micro advantages and positive effects are :

1 Lanthanum -doped tungsten is added to a small amount of tungsten -doped lanthanum , changed the composition of doped tungsten , lanthanum doped tungsten micro cold resistance , heat resistance and other physical characteristics were compared with the conventional tungsten -doped greatly improved, the tests showed that micro- doped lanthanum tungsten cold, heat resistance than conventional doped tungsten are increased by 5 to 7%.

2 , The use of pressure guns lanthanum acid ammonia solution in spray form to be placed in the pot dopant doped tungsten blue spray , can effectively control the addition amount of lanthanum , tungsten is reached improve performance purposes , but also effectively reduce production costs, improve economic efficiency of enterprises .

3 , Increases in the later process of flame oxidation in air annealing step , the processing can effectively eliminate the hardened alloy , the alloy during processing to eliminate the internal accumulation of stress , tensile strength, lower tungsten , the tungsten wire the manufacturing more convenient.

4 , The production of micro- doped lanthanum by the addition of a small amount of tungsten lanthanum , thus changing the composition of the doped tungsten and internal grain size while eliminating the micro by oxidation annealing stress within tungsten doped lanthanum , therefore produced tungsten has a good seismic performance. Tests showed that using this method of production of micro- lanthanum -doped tungsten produced each 10 14V0. 1A0. 7CP bulbs, tungsten specifications for the 1. 0mg/200mm and 1. Ang/200mm, doped with tungsten in the same general seismic tests carried out under the conditions of contrast , the result is a specification of 1.2mg / / 200mm light bulbs, ordinary doped tungsten average number is 673 times the impact resistance , resistance to micro- doped lanthanum tungsten average impact of the number of 1233 ; specifications for a . 0mg/200mm bulbs , ordinary doped tungsten average number of 680 times the impact resistance , while the micro- doped lanthanum tungsten average number of impact-resistant 1209 times.

5, With a simple process, easy to implement and the advantages of low production costs , while the production of micro- lanthanum -doped tungsten has a long life , optical performance, strong seismic performance and a light bulb filament sag after use small amount of features.


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