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conversion coating
MEMBRANE TECHNOLOGY
Membrane technology has been key in achieving efficient separations across a multitude of industries from water and wastewater treatment to pharmaceutical manufacturing and even food production. While membrane technology has been around for decades, advances over the past 20 y......
1061 
Oliver
Working principle of RH vacuum degassing method and DH vacuum degassing method
Vacuum deaeration Methods- RH and DH Vacuum
Deaeration
Vacuum deaeration is a method used to remove dissolved gases from water or other solutions. There are two main types of vacuum deaeration: RH (recirculation and headspace) and DH (direct headspace) vacuum deaeration. These methods can be use......
40MnVB use
Introduction to 40MnVB
40MnVB is a quenched and tempered carbon steel alloy. It is an alloy that is used for a variety of applications ranging from automotive parts to general manufacturing applications. It is a steel that has been developed to meet the needs of a variety of industries and has be......
Porcelain seal alloy 4J33, 4J34 (YB/T5234-1993)
Invar Alloy 4J33 & 4J34
Invar alloy 4J33 and 4J34, also known as FeNi36, are two types of low coefficient of thermal expansion alloys. These alloys are made up of mainly iron and nickel, together with a small amount of molybdenum. The primary application of these alloys is in areas where a compon......
Comparison table of commonly used steel grades at home and abroad (2)
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Steel Numbering System
When working with steel, its important to understand the different components and types of steel that are commonly used around the world. One key way of quickly identifying different types of steel, particularly across international borders, is to know the various steel num......
Deformed permanent magnet steel (GB/T 14991-94 replaces GBn 174-82)
Introduction
Permanent magnet steel is used in a variety of industries including electrical motors, generators, transformers, tools and home appliances. It is a type of stainless steel that has been designed specifically to offer powerful magnetic properties. Transformation permanent magnet steel......
Common vocabulary of machinery in "Chinese-English Dictionary" (1)
A mechanical system is a system of components which moves or transmits energy. A variety of machines and devices can be considered as mechanical. Therefore, mechanical engineers and technicians work in many different industries involving the design, production and maintenance of mechanical systems......
Rock mass stress
Introduction
The lithosphere of the Earth is composed of the crust and the mantle and both are rigid. Inside the lithosphere, however, is still dynamic with plates in constant movement and their continuous interaction with each other. As a consequence of the pressure and friction generated by this......
mine natural ventilation
Source of natural ventilation in mines
Mining is an involved process in the extraction of minerals, ore and other valuable materials from the earth. While there are a variety of processes used in mining, the general goal is to extract material in an efficient and safe manner. Often, miners rely o......
Mineral interfacial electric double layer
Mineral Surfaces: The Double Layer
Minerals are all around us, ranging from the white, soft chalk that is used in sidewalk art all the way to the hard, dense iron ore that is used to make steel. But sometimes we forget to think about what happens when these minerals interact with other minerals, ......
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