Search results for keyword: 445
Aluminum and aluminum alloy hot rolled plate GB 3193-82
Introduction Aluminium and its alloys are the most used nonferrous materials around the world due to its lightweight and durability compared to other materials, These advantages make aluminum and its alloys suitable for a wide range of applications ranging from cast products, wrought products, and ......
1075 
Ashley
Imitation Three-Axis Control Method of Virtual Axis NC Machine Tool
Abstract
This paper presents a three-axis control method based on the virtual axis number-controlled machine tool. This method can make the cutting accuracy of the processed products reach a high level. Firstly, the virtual axis number-controlled machine tool is described, and then an example of ......
ARI Standard 445-81 Room Air Inducers
Abstract
This paper discusses the standards established by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) for the Room Air Inducers (RAI). Specifically, ASHRAE Standard 445.81 is the most recent standard, which outlines the requirements for installing and......
GB/T 15262-94 Determination of sulfur dioxide in ambient air Formaldehyde absorption-pararosaniline spectrophotometric method
GB/T 15262-94 Determination of sulfur dioxide in ambient air—Methanol absorption-pararosaniline spectrophotometric method
1. Introduction
Sulfur dioxide (SO2) is a colorless, odorless gas, which is mainly from industrial and domestic combustion sources. It is one of the major causes of air poll......
GB/T7445-1995 pure hydrogen, high-purity hydrogen and ultra-pure hydrogen
GB/T 7445-1995 Hydrogen, High Purity Hydrogen and Ultra-high Purity Hydrogen
1 Scope
This standard specifies the requirements, sampling and chemical and physical testing of hydrogen, high purity hydrogen, and ultra-high purity hydrogen.
2 Normative References
The following documents are essent......
ZBJ76015.2-89 small air separation equipment performance test method
,答：
ABSTRACT
This paper presents a method of experimental testing and performance evaluation on a small scale air separation equipment. Experiments are conducted according to the design parameters of the equipment and various test scenarios are simulated to measure the performance of the equip......
Pump noise measurement and evaluation method (national standard)
Measurement and Evaluation of Noise from Pumps
Introduction
The measurement and evaluation of noise from pumps is a critical element of controlling noise pollution in a variety of industrial and commercial environments. While most standards for the measurement and evaluation of noise from pumps ......
Production of hot-dip galvanized steel sheets and development of galvanizing technology in my country
Abstract
The development of hot-dip galvanizing steel plate production and technology in China is of great significance to the improvement of national defense and the construction of basic industries. In recent years, due to the continuous progress of science and technology, Chinas hot-dip galvan......
Advantages of rolling guide oil-air lubrication
Rolling Bearing Lubrication
Rolling bearing lubrication is a common industrial application that involves the use of a lubricant to keep two surfaces operating without wear and tear, while minimising the risk of damage. Lubricants provide several benefits to metal rolling bearings, including reduc......
Features and performance of bar 445 red circle rolling mill
Bar Mill 445 Red Ring Rolling Machine Features and Performance
Bar Mill type 445 is a type of red ring rolling machine produced by Nippon Steel Corporation, a major steel manufacturer in Japan. This red ring rolling machine is suitable for manufacturing bar, rod and coil products with four-wheel ......
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