Search results for keyword: qualified
Features of Centerless Grinding of Bearing Rings
The outer diameter of bearing ring is often subjected to finish grinding after forging or turning. Finishing grinding of bearing ring is an important process in bearing manufacturing, which affects the accuracy and performance of bearing, so it requires higher accuracy and stability.
Finishing gr......
1086 
Sophia
Bearing assembly quality index
Bearings Assembly Quality Indicators Introduction
Bearings are found in a variety of applications in automobiles, computers, and other mechanical and electronic equipment. Their performance is an important factor in the quality and reliability of machines, and therefore their assembly quality is ......
Study on Welding Technology of West-East Gas Pipeline Project
Research on Welding Technology of West-to-East Gas Transmission Line Engineering
The West-East Gas Transmission Project is a large-scale energy-transmission project in China. The total length of the planned gas lines will exceed 9,000 kilometers and will span 18 different provinces and cities. Va......
Combined punching and shearing machine operating procedures
Operating Procedure for a Combination Punching and Shearing Machine
A combination punching and shearing machine is a machine tool used to create a clean and precise hole or sheared edge in a variety of materials. The outcome is dependent upon a well-trained and knowledgeable operator as much as t......
Paint Mixer Operating Instructions
Operation Rules for Paint Mixer
1. Preparation before use
Before using a paint mixer, an operator must check the power supply, the integrity of the protective cover, and the coupling between the mixer and the motor and check the fastening bolts of all parts to be used, and finally examine the wo......
Automatic (semi-automatic) thread rolling machine operating procedures
Auto-Screw Machine Operation Procedure
1. Worker Preparation and Safety
Before beginning to operate an auto-screw machine, the worker must make sure they are wearing the appropriate safety equipment. This should include: hard hat, safety goggles and gloves, and hearing protection. Appropriate c......
fitter
Introduction
Whether you work on vehicles or in a factory, identifying and understanding the tools of a trade is a key part of the job. As a mechanic or a machinist, different types of pliers are among the most important tools of the trade. By understanding the differences between pliers, you’ll......
271 Operating procedures for molding machines
264-271 Model Machine Operating Procedure
The 264-271 model machine is an important tool designed to help with the construction of various structures. It is a complex machine that requires a thorough understanding of the safety precautions and operational procedures that should be followed to ens......
GB 6653-94 Steel plates for welding gas cylinders
解析
GB 6653-94 Welding Cylinder Steel Plate
This standard GB 6653-94 provides requirements, test methods, inspection rules and packaging, marking, quality of welding steel plates for manufacturing various types of gas cylinders.
1. Scope
This standard applies to welded steel plates are used to......
GB 6681-86 General Rules for Sampling of Gas Chemical Products
General Principles of Gas Chemical Products Sampling GB 6681-86 “The General Principles for Gas Chemical Products Sampling” provides criteria for sampling variety of gas chemical products, as well as provisions and modeling diagrams of sampling device. This standard effectively protects the fair ......
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