The flat head Screw has a screw body, the axial surface of the screw body is formed with axial extension of the screw teeth, and is provided with at least one groove at the tail end of the groove, the groove above the groove to the center of the screw body dig a row of chip groove, the chip groove is deep in the screw body and beyond the center line of a predetermined Angle, to provide the role of avoiding chip blocking notch. It is widely used in construction sites, hydroelectric power stations and electric power systems. Flat Head,Self Tapping Screw,Dovetail Screw With Pad,Hexagon Drill Tail Wire Handan Changlan fasteners manufacturing ,.Co ltd , https://www.hdchanglanjgj.com
From 2004 to 2015, China's nuclear power industry will enter a new era of rapid development. Therefore, it is meaningful to discuss the application and prospect of high-nickel alloy welding consumables for the nuclear power industry. I. Overview 1. Application of special welding consumables INCONEL(R)FM 52 and 52M and INCONEL(R) WE 152 and 152M for nuclear power are mainly used in tube sheet welding of nuclear island evaporators.