Introduction
The spindle of a machine tool is one of its most important components, and its performance directly affects the accuracy and efficiency of machine tool processing. The bearing selection is an important part of the design of the machine tool spindle. At present, the most widely used b......
The Working Principle of Laser Measurement Instrument
Laser measurement instruments are used to measure various parameters such as distance, velocity, angle and force. They are commonly used in applications such as engineering, surveying and construction. The working principle of these instrument......
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Low alloy steel plates for pressure vessels operating at subzero temperatures are designated according to their chemical composition and mechanical properties. The grade of such steel plates, published by the Chinese national standards organization, can include Grades H480Y, H340Y, H420Y, H440Y,......
GB/T 6725-1992 Cold-bent steel technical conditions
This general technical conditions for cold-bent steel GB/T 6725-1992 stipulates the order and technical requirements for the cold-bent of steel plates and narrow strips.
This code is applicable to cold-bent steel plates with thickness of ≤1.5......
GB/T1591-1994 High Strength Low Alloy Structural Steel Standard
The GB/T1591-1994 high strength low alloy structural steel standard is a national standard in China which specifies the requirements for the chemical composition, mechanical properties and general technical requirements for the product......
Mining Industry GB(T)24-1986 I-beam Steel
The Mining Industry GB(T)24-1986 I-beam Steel standard is a set of requirements for rolled and welded steel products used in the construction and mining industries. The standard is designed to ensure quality and safety in the products.
The standard appli......
Chemical Analysis of High-Speed Steel by Sample Taking Method
High-speed steel (HSS) is a type of tool steel that is used in the production of cutting tools due to its ability to withstand intense high speed use. It is resistant to wear and further strengthens when heated. Its chemical compositio......
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Spring steel (GB 1222-64) (Two)
Spring steel is a key component of many industrial and consumer products. Without adequate spring steel, everything from automobiles to kitchen appliances would not be able to function as intended. Given the ubiquity of this metal, it is important to ......
Metallurgy of Copper
Copper is one of the oldest and most important metals ever used by man. Its malleability and ductility have seen it be used a wide range of applications and the fact that is can be recycled safety, makes it a very important material in modern society. This essay looks at the ......
GB 8491-87 Ductile Cast Iron Anti-Corrosion Parts
GB 8491-87 is a standard developed by the China State Technical Supervision strictly inspecting the quality and performance of various types of ductile cast iron anti-corrosion parts. These parts are commonly used in various commercial and residen......