The initial test consisted of dry drilling a through hole on a 1/2 inch thick 304 stainless steel plate with a 1/4 inch diameter coated drill without the use of a coolant or lubricant. After drilling 238 holes, the drill bit is still intact. In order to force the drill to fail, it was used to continue drilling a 304 stainless steel plate having a thickness of 1 inch. After continuously drilling 7 holes, the drill began to fail due to shank fatigue. When a 1/2 inch thick 304 stainless steel plate was drilled with an uncoated drill of the same specification, only six holes were machined and the seventh hole was broken.
HPPD nanocoating will first be applied to machine tools, machine parts and medical devices for transplantation. According to the company, the test results confirm that the coating can extend the mean time to failure (MTBF) and its performance is superior to other coating products on the market.
According to the company, the unique performance advantages of this coating are attributed to the HPPD coating process. The process involves depositing nanoparticles ranging in size from 2 to 20 nm at a supersonic speed of 8 Mach (ie 8 times the speed of sound). When these nanoparticles impact the drill bit or other coated workpiece at high speed, they penetrate and "fix" into the material to be coated, resulting in a firm connection similar to the welding effect caused by the phase change of the nanoparticles during impact. of. The carbide film coating formed by the process (hardness 36-50 GPa, fracture toughness about 6 MPa) can seal and protect the coated workpiece. In addition, by filling the tiny pores left by other plasma coating processes with nanoparticles, a very dense coating can be formed, making the coated product elastic and durable.
Coil Decoiler& slitting & shearing machine
SF is focus on quality and company's image. We win market with good quality and service. The company has already passed International Quality Management System ISO9001:2008 certification for many years and also got the CE certificate, smoothly got the title of High and New Tech Enterprises. And has more than ten own intellectual property rights and patent technology. We have own import and export right. Our products exported to Russia, South Asia, South east Asia, Middle East, South America, Africa, Australia, Eastern Europe etc.
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