Marine Titanium Valve
In recent years, with the rapid development of China's economy, various industries are booming. As basic general-purpose mechanical equipment, the market demand for products continues to increase, and the valve industry has also achieved rapid development.
The valve is usually composed of valve body, valve cover, valve disc, valve stem, hot plate, packing and transmission parts. The selected materials of the valve body and valve cover are the main materials, while the selected materials of the valve disc (gate), ball, valve seat, valve stem and sealing seat are called internal materials and fastener materials; common materials of valves Including gray cast iron, ductile iron, alloy steel and copper alloy, these materials can be selectively diversified. However, with the advancement of production needs, researchers have found that in some harsh working environments and complex and special working conditions, traditional valve materials cannot meet the needs of production and scientific research. Titanium alloys and cast titanium alloys have attracted people's attention due to their superior properties, and titanium valves have also received some development.
The working environment of the seawater pipeline system is very harsh, and the performance of marine valves directly affects the safety and even the overall performance of the pipeline system. As early as the 1960s, Russia began to study titanium alloys for ships. The subsequently developed marine alloy, Trox titanium alloy, was widely used in the piping systems of military ships, including valves, check valves and ball valves. Various and numerous; at the same time, titanium valves are also used in the piping system of civil ships. Compared with previously used copper alloys, steel, etc., subsequent water immersion tests also showed that the use of cast titanium alloys achieved higher reliability in terms of structural strength and corrosion resistance, and greatly extended its service life. . This can be extended from 2 years to 5 years, and more than 2 times has attracted widespread attention. The three-center butterfly valve provided by the China Shipyard 725 Research Institute in Luoyang, China for a certain type of ship is using T180 and other materials as the main body, accurately changing the previous material selection and design plan, extending the service life of the valve to more than 25 years It improves the reliability and practicability of the valve product application, and fills the domestic technical gap. Using TI80 and other materials as the main body, the service life of the valve will be extended to more than 25 years, the reliability and practicality of the valve product application will be improved, and the domestic technology gap will be filled. Using Ti80 and other materials as the main body, the service life of the valve will be extended to more than 25 years, and the reliability and practicality of valve product applications will be improved to fill the domestic technology gap.
