Machine Parts

Valve thermal conductivity, corrosion resistance is high. When air-fuel mixture gas is burn in cylinder, it’s temperature is   increased. Valve material should be use high thermal resistance which is not under the wrap influence the heat. Otherwise it will be leaked. Valve head and valve seat material should be hardness with high temperature. Without it   can nod work accurately.   In valve mechanism also should be used lubrication. Because rapidly open and close valve there have no corrosion. If any one want to good working efficiency   they must be used speedy   by using lubrication. If do not use lubrication, or small amount use which is not enough stems do not work. In outlet valve where gas burning much. And exhaust gas speed is up to three hundred fps.   It create corrosion by air-fuel mixture. When working temperature is maximum that’s time valve may be broken or destroyed much which is short distance. It is generally occurred corrosion fatigue or   i

Now scientist use solar cell in smart phone. By using glass on smart phone screen now used solar energy.   A researcher team of University of California recently invent solar energy used in smart phone. By this way one smart phone user no need charge his/her smart phone. In this technology Smart phone screen work as a solar cell. This types of device is thin and it contain two polymer solar cell.   Two polymer solar cell collect heat from sun. After collecting heat energy from sunlight and then it is convert into electric energy. This solar energy people can used their house windows, car windows and smart phone. Initially researcher team work with only one solar cell, now they invent new device where they can collect 80   % energy from sun. In former way a device can collect only 40% solar energy and it take loss about 40 %. Now more popular is monocrystalline solar charger, cell and silicon water which looks small and it creates good feedback. A French phys