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Comparison table of commonly used steel grades at home and abroad (6)
Steel grade equivalents table
Country USA UK Germany France Italy Spain Sweden Japan
AISI/SAE Werkstoff DIN AFNOR UNI UNE JIS
1018 1.0453 C10/C15 22Mn6/C22C10 1449/08 070M20/070A22 1020 CK22/C22 050A20/C20
1022 1.0619 S22C S15CK/C15CK S20C 080M15/080A15
1030 1.1133 C25/C30 25Mn4/C25C10 1449/0......
1040 
Lily
medium crushing
Year in Review
This year has been a year of contrasts, challenge and success with lockdowns and restrictions to control the spread of the global pandemic that has engulfed the world. In some places, the response to the pandemic has been aided by advanced technology with hot spot testing being use......
History of Machinery in Ancient China (Part 1)
History of Ancient Chinese Machinery (Part 1)
The history of Chinese machinery and tool use dates back thousands of years. From flint tools used to sharpen wood and stone tools used to build structures, Chinese inventors have been at the forefront of developing tools and machinery that changed th......
Application of water source heat pump in civil air defense engineering
Ground-Source Heat Pump in Human Defense Engineering
Abstract
Ground-Source Heat Pump has been widely used in human defense engineering for its advantages in energy conservation, environmental protection and reliability. This article introduced the application of Ground-Source Heat Pump in human......
Analysis of External Factors Affecting Service Life of Hydraulic Pump
Analysis of External Factors Affecting the Service Life of Hydraulic Pumps
Abstract
Hydraulic pumps are widely used in various engineering machinery and automobiles, so their service life will affect the normal work of the entire system. This article will analyze the external factors that affect......
Ding Han
The Internet
Its hard to imagine life without the internet. Nowadays, it is nearly impossible to go anywhere without seeing someone using a device that is connected to the internet. Not only has the internet changed our daily lives, it has enabled the development and evolution of technology that ......
Preparation, Surface Modification and Application of Nano Zinc Oxide
Preparation, Surface Modification and Application of Nanometer Zinc Oxide
Abstract：
Nanometer zinc oxide (ZnO), a white powder with wide spectra of bandgap, has found numerous applications ranging from photodetectors to gas sensors. Owing to its versatile characters, remarkable structure and su......
Development and application of thermal spraying technology in foreign countries
Foreign hot spraying Technology Development and Application
Abstract: Hot spraying is a relatively new coating technology。 It has unique advantages, such as high coating efficiency, high coating quality and good adhesion. It has been widely used in aerospace and automobile industries. This paper......
Forging Technology: Loss Material Calculation of Forging Experimental Parts
Abstract
Forging is an important metal forming process widely used in industrial production processes. With the development of science and technology, the application of new technologies in forging process has become more and more extensive. The improvement of forging equipment and production pro......
Influence of overheating during forging on bending fatigue properties of 40CrNiMoA steel forgings
The Effect of Overheating on the Bending Fatigue Performance of 40CrNiMoA Forging
Abstract
The quality and performance of a forging directly affects the reliability of the product and the service life of the components and parts. To ensure quality and performance, it is very important to control......
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