Blog

07/11/2020
Hexagon Head Bolt

Analysis of Large Area Corrosion of High Strength Bolts in Wind Turbine Tower

In view of the current situation of large-area corrosion of wind turbine tower bolts, chemical composition, tensile performance testing and microstructure observation are used to analyze the body performance of the bolts.
06/11/2020
Metric Hex Screw

Expansion screws are so strong

The expansion screw is composed of a screw and an expansion tube. The tail of the screw is cone-shaped, and the inner diameter of the cone is larger than the inner diameter of the expansion tube.
05/11/2020
Flange Head Bolt

Stainless steel flanges must use stainless steel bolts is a big mistake

Many owners often force the contractor to make rectifications on the grounds that the use of carbon steel or alloy steel bolts for stainless steel flanges will cause corrosion.
But is it really hard to explain?Article 5.8.7 of GB50316-2000 (2008) "Code for Design of Industrial Metal Piping": Under severe cyclic conditions
02/11/2020
Coach Bolt

How to determine the tightening torque of threaded fasteners

In order to give full play […]
29/10/2020
Pan Head Machine Screw

Effect of Lubrication on the Coefficient of High-strength Bolt Screw

High-strength bolts are often used in high-precision and high-precision working conditions, which have high requirements on the quality of bolt connection.
This article mainly introduces the effect of lubrication on the torque coefficient of high-strength bolts.