The China-Europe freight-train service has recorded more than 40,000 trips, with the transported goods valued at over 200 billion U.S. dollars, official data shows.
Since the first China-Europe freight train left southwest China’s Chongqing Municipality in March 2011, the service has reache...
From January to March 2021, the export volume of China’s fasteners was 1028244 tons, an increase of 28191 tons compared with the same period in 2020, a year-on-year increase of 37.7%; The export value was 2183762 thousand US dollars, an increase of 626863 thousand US dollars compared with t...
On June 2, 2021, the 12th Shanghai fastener Exhibition (fes2021) was held in the National Convention and Exhibition Center!
After 12 years of hard work, polishing and precipitation, Shanghai fastener professional exhibition has become the common choice of high-end brands and innovative enterpris...
The cylindrical thread rolling die produced by our company can be made of Cr12MoV (alloy tool steel), DC53 (alloy tool steel) and M2 (high speed tool steel). We will test each steel before use, and only use qualified steel. High-quality steel is the basis for manufacturing high-quality thread rol...
In the connection of threaded fasteners, the main possible factors that lead to the relaxation of the pre-tightening force are: contact surface subsidence, mutual influence of bolt groups, seal ring deformation, high temperature creep and torsion relaxation.
1. Subsidence of contact surfac...
The most important characteristic of selecting the material of the rolling die is the hardness, toughness and wear resistance of the die steel. It must have sufficient hardness and toughness, so that the mold can withstand the force applied to it in use; good abrasion resistance is also necessary...
Stainless steel thread rolling oil contains multi-polar pressure anti-wear lubricating additives. Due to its high lubricity, it can effectively reduce the rolling temperature and obtain the maximum rolling precision. It has been successfully applied to difficult cutting of various difficult-to-ma...
The thread is one of the earliest simple machinery invented by mankind and one of the most practical inventions in history. Because the thread has the functions of easy assembly and disassembly and replacement, threaded connections and threaded transmissions are widely used in various industries....
