Search results for keyword: grading
my country's bearing industry's response to process equipment
Technology and EquipmentTrendsin Chinese Bearing Industry
With the rapid development of Chinasbearing industry, the optimization ofproduction technology and equipment continuouslyimproves its products quality andinnovation ability. The application of advancedequipment and technologies has becomee......
1053 
Samantha
Reform plan and implementation of machine tool numerical control
Modern CNC machining reform plan and implementation
1 Introduction
At present, CNC machine tools are widely used in many fields, not only meeting the needs of various stages of production, but also playing a very important role in the production process. In order to provide better service to cus......
Japan Scrap Iron and Steel Classification Standard
Classification Standards for Japans Scrap Iron and Steel
Scrap iron and steel are by-products of a variety of industrial activities. In Japan, scrap iron and steel is classified according to its source. The classification system for scrap iron and steel has been developed by the Ministry of Econ......
JGJ81-2002 Construction Steel Structure Welding Technical Regulations (Part 32)
Welding technique in architectural steel structures referred to the requirements of JGJ81 - 2002
Architectural steel structures refer to the structures of buildings, bridges, automobiles and ships constructed by metal materials. In terms of steel, it is the skeleton composed of various metal allo......
Ultrasonic flaw detection and quality rating method for steel castings (abstract) GB 7233-87
Abstract
This study focused on the ultrasonic nondestructive testing and quality evaluation method of cast-steel parts. The study reviewed and evaluated the current testing capabilities of various establishments, including the simulation tests and judgment criteria of surface and internal defects......
Classification method of radiography and film grades of steel castings (abstract) GB 5677-85
X-ray photography and film grading of castings is a widely accepted practice used to detect any discontinuities and flaws in the casting. In recent times, this method has become a standard to evaluate the quality of castings and to determine the necessary measures needed to achieve certain quality......
Penetration testing and rating methods for indications of flaws in steel castings (abstract) GB 9443-88
Abstract
Industrial casting steel parts are used in many fields of engineering and they are often subjected to many types of forces that could cause damage to the parts. To ensure these parts are durable and can withstand heavy loads, it is important to check them through penetration testing and d......
Unified digital code system for steel and alloy grades (GB/T17616-1998)
GB/T17616-1998 Steel and Alloy Grade Number Coding System
Introduction
The GB/T 17616-1998 Steel and Alloy Grade Number Coding System is an internationally accepted uniform numbering system and is used to classify and name ferrous (iron and steel) and alloy (aluminum and nickel) grades. The syst......
Comparison table of commonly used steel grades at home and abroad (5)
Iron and Steel grading Systems
Though there are different grading systems for iron and steel, the two most commonly used in North America are the American Iron and Steel Institute (AISI) and the Society of Automotive Engineers (SAE).
American Iron and Steel Institute
The American Iron and Steel......
Grade of spring steel
Introduction
Spring steel are special types of steel alloys come in different grades and have low alloy levels and carbon of 0.6- 1%. They are highly stretchable in nature and it is precisely why they are used in various applications like small springs, flat springs, slotted springs and mechanic ......
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