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heat treatment of metals in ancient China
Heat Treatment of Metals in Ancient China
The history of heat treatment of metals in China dates back to the Shang Dynasty (1600-1046 BCE). This early heat treatment was used to soften and harden bronze utensils and weapons such as knives and spearheads, by heating and cooling in a process that i......
1085 
Sophie
Process Improvement of Steel Castings
Introduction
The improvement of the process for casting steel parts is an important part of the manufacturing process. It is an important factor for improving the quality, efficiency and cost-effectiveness of the parts formed. The various features of the process for casting steel parts include ch......
Management Technology of Automobile Mold Production (Part 1)
Management Technology for Automobile Mould Production (Part One)
The automobile mould market is a rapidly changing one, and mould producers must continuously update and develop their technologies to remain competitive. In this article, we will discuss the various aspects of managing a successful ......
Cupola
The Crucible
Written by Arthur Miller, the Crucible is a play set in the Salem village of Massachusetts in 1692. The play’s protagonist, John Procter, is a farmer who is accused, along with other townspeople, of trying to practice witchcraft. He finds himself in the midst of the Salem witch tria......
The demand for bearings in the machine tool industry
Long before the industrial revolution of the late 18th century, engineering and metal working had been practiced by skilled artisans and craftsmen. The industry was generally limited to individual or small family-owned businesses. The invention of efficient machine tools, including lathes, during ......
Technical Specification for Waterproofing of Underground Engineering (GB50108-2001)
Underground Engineering Waterproofing Technology Specification (GB50108-2001)
This standard specifies the technical requirements and acceptance criteria of waterproof engineering design and construction, the process of detection, acceptance, maintenance and management of underground engineering w......
19Mn5 use
Industrial Uses for 19Mn5
19Mn5 is a structural steel grade that is often used in the manufacturing and processing of industrial machinery. Its properties can be adapted to create different types of machinery that are able to handle tough jobs without compromising the integrity of the product. Th......
0Cr13 use
Introduction
Cr13 is a type of martensitic stainless steel family, which is adding the Cr to make the steel have the highest hardness and abrasion resistance. It is a martensitic type containing Cr at 13%.
Advantages
Cr13 offers outstanding abrasion resistance, which is mainly caused by the har......
Czech welded steel steel grade
Welding steel, also known as “Stainless” or “Steel,” is highly used by a wide range of industries such as aerospace, robotics, automotive, and more. With its strength, weldability, and corrosion resistance, steel is one of the most versatile materials and is used in countless applications. The......
JGJ81-2002 Welding Technical Regulations for Building Steel Structures (Part 21)
Welding Procedure Specifications for Steel Structures of JGJ81-2002
Welding procedure specifications, commonly referred to as WPS, are documents approved by qualified welding personnel or welding engineers (often referred to as WPQRs) that contain instructions and procedures for welding process a......
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