Investment Casting, also known as lost wax casting, includes wax pressing, wax repairing, tree formation, paste, wax melting, casting metal liquid and post-treatment processes. Lost wax casting is the process of making a wax mold of the part to be cast, and then coating the wax mold with mud. After the clay mold is dried, melt the wax mold inside in hot water. Melt the wax mold out of the clay mold and then roast into pottery mold. Once roasted. Generally, a casting port is left when the mold is made, and then molten metal is poured into the pouring port. After cooling, the required parts are made. Investment Casting,Lost Wax Casting,Steel Investment Casting,Stainless Steel Investment Casting Tianhui Machine Co.,Ltd , https://www.thcastings.com
Nine characteristics of LED lighting
(1) High purity, bright and rich colors. At present, LED products cover almost the entire visible spectrum and have high color purity. The traditional way to obtain colored light is to add a filter to the incandescent lamp, which greatly reduces the luminous efficiency.
(2) Solid light, good seismic performance, firm and reliable.
(3) There is no mercury in the light source, and the light beam does not contain ultraviolet rays. LED is a solid light source, green and environmentally friendly, especially suitable for perfume shops, jewelry stores, museums, art galleries and other professional places, to meet the special requirements of the display products for lighting.
(4) Energy saving, economical and maintenance free.
(5) Dynamic color control, adjustable brightness and darkness. The combination of three primary color LEDs can use PWM to achieve color change.
(6) LED can be powered by DC low voltage. It is safe and reliable.
(7) The LED is not limited by the starting temperature and can be started instantaneously. The starting time is usually several ms, and the full luminous flux output can be instantaneously reached.
(8) Long life. The actual life of LEDs exceeds 50,000 hours, which is several times or even several times that of general light sources.
(9) LED has a strong directionality of light, high utilization of light flux and small volume, which can facilitate the design of LED lamps and the control of light intensity distribution.