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GB 8554-87 Periodic Inspection and Evaluation of Liquefied Petroleum Gas Cylinders
8554-87 Periodic Inspection and Assessment of Liquefied Petroleum Gas Cylinders
Liquefied petroleum gas (LPG) cylinders are widely used to store and transport LPG in various settings, such as households and industries. Due to the high pressures associated with storing and delivering LPG, these cy......
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GB7022-86 Determination of noise sound power level of positive displacement compressors - simple method
Volume Compressor Noise Sound Power Level Measurement - Simplified Method
Introduction
Numerous machines and equipment emit noise as part of their normal operation. In many cases, the level of that noise is regulated, and the ability to accurately measure the sound power level is essential. This......
GB7786-87 Power Air Compressor and Diaphragm Compressor Noise Sound Power Level Limits
GB7786-87 Noise Rating Limits of Air Compressors and Diaphragm Compressors for Power Purpose
I. Introduction
The noise rating limit of air compressors and diaphragm compressors for power purpose is regulated by the national standard, GB7786-87. This is established by the Ministry of Machinery Ind......
GB 12998-91 Water Quality Sampling Technical Guidance
Sample technique guide of water quality Abstract Water quality is an important indicator of human health and is closely related to human life. In order to better understand the water quality of a certain area and accurately understand the pollutants in the water, sampling is an important step. Th......
Electromagnetic Wave Propagation Logging
Electromagnetic Propagation Logging
Electromagnetic propagation (EM) logging is a logging method used to measure the depth, quantity and direction of electrically conductive materials in the subsurface. The method works by sending electromagnetic waves of specific frequencies through the formatio......
Vibration about bearings
The Role of Vibration in Bearing Faults
Vibration is a key indicator of bearing faults in rotating machinery. A bearings rotational speed, load, and operation conditions can all impact its vibration signature, making it possible for operators to detect faulty bearings before costly repairs are ne......
Vibration Types of Rolling Bearings
Vibration of Rolling Bearings
Rolling bearings are among the most commonly used components in modern industry. They are used in a vast array of industrial applications, ranging from small household appliances to heavy industrial machinery, industrial motors and automotive drivetrains. However, du......
Machine Tool Vibration Damping Pad Iron Technical Parameters
深入分析
CNC Machine Tool Vibration Isolation Pads
CNC (computer numerical control) machine tool vibration isolation pads are specialized items of equipment that are used to protect machines from unwanted vibration frequencies. They are designed to work with a variety of machinery, from large manu......
Influence of Eddy Current on Periodic Strength Properties of LC4 Alloy Front Beam Forgings
Impact of Eddy Current on Cyclic Strength Performance of LC4 Alloy Front-Axle Forging
Abstract
The LC4 alloy front-axle forging is a common part used in the automobile industry, in which eddy current plays an important role in influencing the cyclic strength performance of the product. Therefore......
Forging technology: the core content and key technology of computer simulation of stamping forming process
Abstract
Computer simulation technology has been widely used in the process of stamping forming, which can provide a powerful and reliable simulation platform for understanding and guiding the forming process. The core content of stamping forming process simulation technology includes the static ......
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