Direction of localization of steel for automotive fasteners
The performance requirements, smelting and rolling characteristics of steel for automotive fasteners are introduced; The current situation and development direction of relevant clean bolt steel, microalloyed non-quenched and tempered steel, non-annealed steel, boron steel, and high strength steel resistant to delayed fracture are described; The direction of efforts to implement the localization of steel for automobile fasteners is pointed out.
01-05
2023
Key control points of fastener heat treatment
Industry insiders all know that the heat treatment of fasteners can make them have a certain strength, good plasticity, toughness, etc., and then be better used, while reducing the occurrence of relaxation, ensuring the quality and reliability of fasteners. In addition to the general quality inspection and control, there are also some special quality inspection and control for the heat treatment of fasteners. Now let's talk about several control points of heat treatment.
01-05
2023
What surface defects are there in the manufacturing process of screw fasteners
We can see the screw fasteners in all products. Most of the screw fasteners are head type, with uniform threads without burrs and bright appearance. But are all screw fasteners like this? Of course not. During the production of screw fasteners, poor technology or machine adjustment will cause many surface defects.
01-05
2023
Application of bolt automatic tightening technology in valve product assembly
This paper introduces the operation process of manual tightening of valve bolt assembly and the current situation of product connection reliability and production efficiency. The limitations of manual bolt tightening technology and the development trend of automatic bolt tightening technology are analyzed. The idea of introducing automatic bolt tightening technology into the valve bolt tightening process is put forward.
01-12
2023
Analysis of three causes of fastener bolt fracture
As we all know, it is used to connect mechanical parts. Its function on the machine is also very important. If the connection is not good, it will directly affect the normal operation of the machine. However, what disturbs many people is that bolts often break. Many users do not know what causes them. Here, China Standard Parts Network will share with you three common causes of fastener bolt fracture.
01-12
2023
As a disruptive technology that will lead the world in the future, the robot industry is accelerating the creation of new business forms and showing an explosive growth trend. The reporter of Economic Information Daily learned from the 2018 World Robotics Conference that the scale of the global robot industry last year exceeded $25 billion, an increase of 20.3%, and is expected to reach nearly $30 billion in 2018. At the same time, the robot industry has entered a period of vigorous development in China, with an average annual growth rate of 29.7% since 2013.
01-12
2023
China's machinery industry has further consolidated its stable and positive trend in the first half of the year, and it is expected that the overall operation of the machinery industry will be stable throughout the year.
01-12
2023
Export tax refund procedures and relevant information of fasteners
The import and export of fasteners accounts for a large proportion of China's fastener trade, especially in Zhejiang, where the import and export of fasteners are more frequent. In addition, at present, fastener enterprises have begun to "extensively", not only limited to domestic sales, so it is necessary to make up for the common sense and laws related to the import and export of fastener products.
01-12
2023
The self-sufficiency rate of domestic market varieties of mechanical products in China exceeds 85%
Wang Ruixiang, president of China Machinery Industry Federation, said on the 26th that the self-sufficiency rate of domestic market varieties of machinery products in China has exceeded 85%, and the situation of advanced equipment mainly relying on imports has changed.
01-12
2023
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