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metal processing technology metal processing technology
Metal Processing Technology
The use of metal processing technology dates back centuries, to the early forges and blacksmiths of pre-industrial times. In modern industry, metal processing still forms an essential element of any equipment’s design, manufacture and maintenance. Humans, more than an......
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Research on Localization of Cold Stamping Die for Imported NC Punch Press
In the traditional machining process, the precision and efficiency of parts processing are limited to some extent. Fortunately, with the development of numerical control technology, the processing quality is ensured, and the production efficiency is improved to a certain level. In the current situ......
GB/T 702-1986 Dimensions, shape, weight and allowable deviation of hot-rolled round steel and square steel
GB/T 702-1986 Hot Rolled Rounds and Squares Steel Dimensions, Shapes, Weights and Permissible Variations
This standard specifies the size and shape, permissible asperities and permissible deviations of hot rolled circles and squares for general structural purposes. This standard applies to round ......
straightness
Straightness is a measure of how straight an object is, usually compared to a theoretical straight line. In metrology, straightness is an important characteristic of linear dimension. An object’s straightness can change over time due to external factors such as temperature, humidity, and force.
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"ISO9000 family" standard
答案
ISO 9000 family
The ISO 9000 family of standards are quality management systems (QMS) standards developed by the International Organization for Standardization (ISO), and are designed to help business owners and managers identify and control quality related activities in their operations. The......
Commonly used wire gauge number and nominal diameter comparison table
Fillet Weld Size
Fillet welds are used for many applications and are important for the strength of the joint. Fillet weld size is usually specified on the drawing. Understanding the fillet weld symbols and their meaning is important for producing strong and reliable joints.
Fillet welds are str......
GB50205-2001 Code for Construction Quality Acceptance of Steel Structures
解释
The Standard of Quality Acceptance of Steel Structure Construction GB50205-2001
This standard is established to regulate the quality acceptance of steel structure construction, whose products are engineering structures and equipment. This standard is divided into general rules, product accept......
Malleable Iron Castings (Abstract) GB 9440-88
GB 9440-88 is a national standard issued by the Ministry of Industry and Information Technology of the Peoples Republic of China. It specifies technical requirements, test methods and inspection rules, conditions of supply and acceptance, and packaging, marking and quality certificate of cast iron......
Background of ISO14000 series standards
The International Organization for Standardization (ISO) is an international body whose purpose is to maintain standards for goods, services, and systems across the world. The ISO14000 series of standards is a subset of ISO standards which are specifically designed to help organizations understand......
Chemical Composition of Aluminum and Aluminum Alloy Processed Products GB 3190–82
GB 3190–82 is the standard for chemical compositional requirements for aluminum and aluminum alloy processing products. It sets forth the minimum and maximum allowable nitrogen, carbon, silicon, manganese, magnesium, zinc, aluminum, phosphorus and other key elements, as well as their impacts on p......
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