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crushing ratio
The Fragility Index
The fragility index is a measure of how vulnerable a country or political system is to social and economic disturbances. A high fragility index indicates a high level of political instability, economic hardship and social unrest. A country with a high fragility index is typica......
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Mineral Optical Properties
Mineral optic property
Minerals are naturally occurring solid compounds, which have a wide range of optical properties. The most common optical properties of minerals are birefringence, pleochroism, and anisotropy. The optical properties of minerals are dependent on their composition, composition ......
Forging of metals in ancient China forging of metals in ancient China
Introduction
The process of forging metals in ancient China dates back thousands of years. The Chinese have made a plethora of various utensils and weapons with the help of this process. This process has also had an influence on the Chinese culture and has been an important part of everyday life ......
Common quality defects after heat treatment of bearing parts
1. Too Low Hardness
As with any kind of heat treatment process, one of the most common quality issues that can arise when heat treating a bearing part is too low hardness, usually caused by insufficient heat treatment time and temperature. If the bearing part is below the specified hardness, it wi......
How to solve the shrinkage cavity shrinkage problem of die castings
Introduction
Shrinkage and shrinkage looseness are some of the most common defects found in die casting parts. In the casting process, the metal solidifies and shrinks, leaving empty spaces in the casting matrix. Shrinkage defects are far more common in die casting than in other kinds of metal ca......
Troubleshooting of Low Temperature Adjustment Magnetron Sputtering Coating
Troubleshooting Low Temperature Adjusted Magnetron Sputtering Coating
In industrial production, magnetron sputtering is a widely used technique of coating, especially for vacuum-packed environment, due to its relatively low cost and environmental friendliness. However, troubleshooting of low temp......
High pressure water jet cutting defects, equipment maintenance and safety
Ultra High Pressure Waterjet Cutting Defects, Maintenance and Safety
In todays world, ultra high pressure waterjet cutting is used for a variety of tasks, ranging from simple cutting and drilling to complex industrial applications. Not only does this particular cutting process offer the greatest ......
Analysis on the Fracture and Prevention of Ferrule Defects
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Loose Oval Defects and Prevention
The Loose Oval Defects (LODs) is an inherent form of metallic fracture that occurs due to the dynamic growth and subsequent fracture of the oval-shaped cavities in the surface of high-strength components. This phenomenon is often associated with the manufactur......
Defects of injection molding products, causes and overcoming methods
Injection Molding Defects and Remedies
Injection molding is one of the most popular manufacturing processes used to produce plastic parts and components. Despite its popularity and its affordability, injection molding can be susceptible to defects. Here are some of the most common defects and rem......
Causes and Countermeasures of Injection Molding Defects
The Causes and Countermeasures of Injection Moulding Defects
Injection moulding is one of the most popular manufacturing processes used today. The process involves forcing molten plastic, rubber or other materials into a mould cavity to create a variety of components. However, with any manufactur......
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