Search results for keyword: crossed
Leontief paradox
Conflict between Love and Duty
Love and duty are two forces in life that often collide. People sometimes make choices between the two, leading to personal dilemmas and inner struggles. Both forces can be powerful and difficult to reconcile, yet these challenges are essential for positive growth. ......
01/07/2023 
1050 
Caroline
Aluminum and aluminum alloy cold drawn tube GBn 221-84
GB/T 221-1984 Quality standards for cold-rolled aluminium and aluminium alloy sheets and strips
1 Scope
This standard specifies the appearance and marking, technical requirements, testing methods and inspection rules of cold-rolled aluminum and aluminum alloy sheets and strips.
2 Normative refe......
Slag avoidance method
Slagging Cover Method
Slagging cover method is a new approach to clean up pollutants caused by industrial activities that are harmful to environment. By using this method, pollutants of industrial origin can be prevented from spreading in the atmosphere and contaminating ground waters, rivers and......
Metallographic diagram of Cr12MoV (quenched at 980°C and tempered at 200°C)
Cr12MoV is a very popular tool steel used in many industries, including automotive, aerospace and metal fabrication. This steel is commonly heat treated for strength and ductility. The most common heat-treat cycle for Cr12MoV involves a quench to 980℃ and then tempering to 200℃.
Lets take a clo......
How Polarizing Microscopes Work
偏光显微镜的工作原理
Polarized light microscopy is a technique that relies on the polarization of light to analyze and visualize microscopic objects. A polarizing light microscope is an optical instrument used to study the microscopic structure of a sample. The polarizing microscope uses polarized......
Two-roll cross rolling piercing with guide disc
Two-Roll Torsion Perforation with Guide
Two-role torsion perforation with guides has become increasingly popular in the manufacturing industry. Traditionally, perforation was achieved by drilling a straight hole through the metal. This was labor-intensive, time consuming, and left an unsightly me......
Fracture Analysis of Compressor Crankshaft
Analysis of Fracture of Compressor Crank
Abstract
This paper is concerned with the analysis of a fracture on the crank of a compressor, which caused the operation of the compressor to be stopped. The crank was observed to have a clear brittle fracture towards one end only and is separated into......
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