When it takes him back to the day that watching the parade to commemorate the Chinese people's Anti-Japanese War and the world anti-fascist war of the 70th anniversary of the victory months ago, Sun Shangsong, chairman of the board of Henan Zhengxu Technology Co.Ltd, feels proud deeply. It is rarely known by people that, the nacelle shells of HD cameras on the UAVs were designed and manufactured by the company. Seeing his production, Sun smiled down weep.

According to Sun, the nacelle shells are small but precise. There were series processes like 3D printing, precision pressure casting, polishing, five axis machining center, turning center, etc. Besides, every nacelle shell should be assembled in vacuum pressure tank.

Ten years ago, foundry equipment had to be imported from the USA, which cost much money and time. Under the circumstances, Sun and his team threw themselves into researching vacuum pressure foundry tank. After two years' efforts, the researching team successfully developed the vacuum pressure foundry tank to assemble nacelle shells and other products, making the quality much better with lower costs.

3D printing technological development improved the core competitiveness of the company. Now, products of Henan Zhengxu Technology Co., Ltd. are applied to variant progresses in aerospace filed. At press time, the company has already submitted 13 patent applications, three of which are invention patent applications.

"Our next object is to develop Aluminium Magnesium alloy and Titanium Magnesium alloys products," says Sun, "it is our dream to devote ourselves to aerospace industry of China."

(China IP News)