Laser adjustment of beryllium copper sheet using temperature gradient mechanism

Abstract Research in termoacoustics began with the observation of the heat transfer between gas and solids. Using this interaction the intense sound wave could be applied to create engines and heat pumps. The most important part of thermoacoustic devices is a regenerator, where press of conversion of sound energy into thermal or vice versa takes place. In a heat pump the acoustic wave produces the temperature difference at the two ends of the regenerator. The aim of the paper is to find the influence of the material used for the construction of a regenerator on the properties of a thermoacoustic heat pump. Modern technologies allow us to create new materials with physical properties necessary to increase the temperature gradient on the heat exchangers. The aim of this paper is to create a regenerator which strongly improves the efficiency of the heat pump.

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Changes of the Amino Acid and Catechins Contents of ‘Kemsull’ and ‘Yabukita’ Tea Cultivars with Different Harvesting Seasons and Developmental Stages in the Temperature Gradient Plastic Film Tunnel under 30% Shading

The Korean Tea Society ◽

10.29225/jkts.2020.26.3.27 ◽

2020 ◽

Vol 26 (3) ◽

pp. 27-38

Author(s):

Doo-Gyung Moon ◽

So Jin Lee ◽

Yong Hee Kwon ◽

Su Young Kang ◽

Seong-Mun Lee

Keyword(s):

Amino Acid ◽

Temperature Gradient ◽

Developmental Stages ◽

Plastic Film

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BERYLCO 25

Alloy Digest ◽

10.31399/asm.ad.cu0271 ◽

1973 ◽

Vol 22 (9) ◽

Keyword(s):

Corrosion Resistance ◽

Physical Properties ◽

Tensile Properties ◽

Copper Alloy ◽

High Performance ◽

High Strength ◽

Heat Treating ◽

Beryllium Copper

Abstract BERYLCO 25 is the standard high-performance beryllium copper alloy most widely used because of its high strength, hardness and excellent spring characteristics. BERYLCO 25 is the updated version of BERYLCO 25S (Alloy Digest Cu-3, November 1952). This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-271. Producer or source: Kawecki Berylco Industries Inc..

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CONDULOY

Alloy Digest ◽

10.31399/asm.ad.cu0011 ◽

1953 ◽

Vol 2 (10) ◽

Keyword(s):

Mechanical Properties ◽

Heat Treatment ◽

Physical Properties ◽

Tensile Properties ◽

Copper Alloy ◽

Heat Treating ◽

Age Hardening ◽

Beryllium Copper ◽

Hardening Heat Treatment

Abstract CONDULOY is a low beryllium-copper alloy containing about 1.5% nickel. It responds to age-hardening heat treatment for improved mechanical properties. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on casting, heat treating, machining, and joining. Filing Code: Cu-11. Producer or source: Brush Beryllium Company.

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