Search results for keyword: shrinkage
shrinkage cavity
Introduction
In civil engineering, holes are often caused by the process of shrinkage. shrinkage can occur in both concrete and soil materials, resulting in a variety of different types of holes. shrinkage holes can lead to structural problems, such as decreased stability and increased stress, as......
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Sophia
Repair Technology of Cast Iron Bearing Seat by Manual Arc Welding
Repair Technology of Cast Iron Bearing Seat by Manual Arc Welding
Manual arc welding is necessary for the repair of cast iron bearing seat. There are two types of cast iron: gray cast iron and ductile cast iron. The two types are different in structure and properties. To ensure the quality of the......
Characteristic Causes of Residual shrinkage Cavity and Its Judgment and Treatment
Introduction
Remaining shrinkage hole is a common defect in castings, caused by a number of possible factors related to the manufacturing process. This paper attempts to thoroughly review the causes and prevention of remaining shrinkage hole defects in investment castings, and to discuss various ......
flux
Introduction
Soldering is a process of joining two or more metal parts by melting a filler metal to form a joint. A filler metal is also known as “solder”, which is a metal alloy with a melting temperature that is lower than that of the metals you are joining. Solder is typically applied as a wi......
Weld Stress and Distortion
Welding Stress and Deformation
Welding is a common type of joining used for both structural and non-structural elements. Welded components are found in products ranging from automobiles and ships to bridges and skyscrapers. Despite the wide variety of applications, welding is associated with a nu......
Ultrasonic testing methods for steel forgings GB/T 6402-9l
Ultrasonic Testing of Forged Steel Products
Introduction
Ultrasonic testing (UT) is a non-destructive inspection method used to locate and identify discontinuities in forged steel products. In UT, sound waves are used to detect hidden defects in the material and provide a detailed cross-section ......
General requirements for surface quality of hot-rolled steel sheets GB T14977-94
General Requirements for the Surface Quality of Hot Rolled Steel Sheets
Hot-rolled steel sheets are widely used in construction engineering and other industries due to their excellent characteristics. To ensure a good performance, it is necessary to meet the surface quality requirements. General ......
Flux for submerged arc welding of low alloy steel GB 12470-90
，标准不低于TOEFL阅读难度
Low Alloy Steel Arc Welding: Welding Agents
One of the most important reasons why steel is the most popular material used in the construction of industrial facilities is its ability to be combined and interrupted. This ability is made possible by welding, a process that u......
International Standard for Ferroalloys - Ferroniobium
Wrought Nimon in an Iron Alloy
Wrought Nimon iron alloy is a type of iron alloy that is composed of primarily three metals: iron, nickel, and manganese. It is a type of iron alloy that is used in applications that require a high level of strength and toughness. It is most commonly used in the con......
GB 1173-86 Specifications for Casting Aluminum Alloys
，或者英文报告
2500 Words on Casting Aluminum Alloy Technology
The casting of aluminum alloys is an important process for producing components of various shapes and sizes. The technology has been around since ancient times and has been used to create tools, weapons, and sculptures. In this paper, ......
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