Question

5 example in industrial

-valve in i/c engine

Answer 1

1.Poppet valves are used in many industrial processes, from controlling the flow of milk to isolating sterile air in the semiconductor industry. However, they are most well known for their use in internal combustionand steam engines

2.Titanium engine valves are used mainly in the high performance racing industry. SSV titanium engine valves are manufactured using best quality TI alloys. Titanium valve offers high temperatures resistance to assure peak performance. SSV is having all Titanium High Performance Series.Also featuring single or multi-layer coating such as chromium nitrite (CrN) or titanium nitrite (TiN), for increasing life span for highly heat resistance. SSV produces titanium engine valves for all high performance racing applications, from American countries, European countries, through professional sport applications.

3. Stellite Filled Engine Valve - Specialized in making Stellite Engine Valve.   
    Stellite is a group of cobalt-based alloys
    welded in the seat of exhaust valves, that is
    very resistant to wear and high temperatures.

4.Nitration is hardening process of coating nitrite on the engine valve which will appear as black valve. Compared to stainless steel base material the micro hardness is higher having high ductility property beneath the nitrated layer. The nitrite coating increases the deterioration and corrosion resistance. The Black Nitrite applies to the whole valve and the nitrite layer is stick to the base material at a microscopic level, so the valve does not break when in bend due to impacts with the pistons. Nitration processed on valve decreases stickiness and this features lengthen valve durability.

5.The engine valve made up of two different metals are knows as bi-metal Valves. This is done using friction welding process. Exhaust valves are especially made from bi-metal. Austentic Steel which is having heat resistance and corrosion resistance properties, is used at the head while the stem is made from Martensitic Steel which have high tensile strength and abrasive wear resistance property. This technique is mainly used in high stressed exhaust valves.