Study on infrared collimation heating technology in thermal vacuum tests

Abstract The paper describes preliminary examinations on establishing usefulness criteria of foundry tooling materials in the microwave heating technology. Presented are measurement results of permittivity and loss tangent that determine behaviour of the materials in electromagnetic field. The measurements were carried-out in a waveguide resonant cavity that permits precise determination the above-mentioned parameters by perturbation technique. Examined were five different materials designed for use in foundry tooling. Determined was the loss factor that permits evaluating usefulness of materials in microwave heating technology. It was demonstrated that the selected plastics meet the basic criterion that is transparency for electromagnetic radiation.

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Thermal-vacuum testing of drilling and sampling tool

10.2514/6.2000-5272 ◽

2000 ◽

Author(s):

M. Marchesi ◽

R. Campaci ◽

A. Nista ◽

W. Prendin ◽

S. Scarpa ◽

...

Keyword(s):

Thermal Vacuum ◽

Vacuum Testing

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NIKROTHAL TE

Alloy Digest ◽

10.31399/asm.ad.ni0710 ◽

2013 ◽

Vol 62 (10) ◽

Keyword(s):

Mechanical Properties ◽

Physical Properties ◽

Tensile Properties ◽

Turn Of The Century ◽

Heating Element ◽

Attractive Alternative ◽

Electric Resistance ◽

Household Appliances ◽

Nickel Chromium ◽

Heating Technology

Abstract NIKROTHAL TE is a member of the Nikrothal family of alloys, which are one of two main types of electric-resistance alloys. Nickel-chromium (80Ni-20Cr, for example), developed around the turn of the century, was used as heating-element material in industrial furnaces and electric household appliances. Nikrothal alloys offer advantages in heating-element applications requiring very good mechanical properties in the hot state. This alloy is an attractive alternative to Nikrothal Alloys 40, 60, 70, and 80 (see Alloy Digest Ni-529, September 1997). This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on forming. Filing Code: Ni-710. Producer or source: Sandvik Heating Technology.

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Space product assurance. Thermal vacuum outgassing test for the screening of space materials

10.3403/30290438 ◽

2014 ◽

Keyword(s):

Thermal Vacuum ◽

Space Product

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Advantages of Utilizing the Solar Water Heating Technology in Reducing Total Electricity Consumption and Improving Grid Efficiency: A Case Study of Benghazi, Libya

2020 11th International Renewable Energy Congress (IREC) ◽

10.1109/irec48820.2020.9310393 ◽

2020 ◽

Author(s):

Mohamed Almaktar ◽

T. Hussein ◽

Hasimah Abdul Rahman ◽

A. M. Albreki

Keyword(s):

Electricity Consumption ◽

Water Heating ◽

Solar Water Heating ◽

Solar Water ◽

Heating Technology

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Preparation of WC-TiC-Ni3Al-CaF2 functionally graded self-lubricating tool material by microwave sintering and its cutting performance

High Temperature Materials and Processes ◽

10.1515/htmp-2020-0004 ◽

2020 ◽

Vol 39 (1) ◽

pp. 45-53 ◽

Cited By ~ 1

Author(s):

Siwen Tang ◽

Rui Wang ◽

Pengfei Liu ◽

Qiulin Niu ◽

Guoqing Yang ◽

...

Keyword(s):

Mechanical Properties ◽

High Temperature ◽

Microwave Heating ◽

Cutting Performance ◽

Conventional Heating ◽

Hard Alloys ◽

Dry Cutting ◽

Temperature Oxidation ◽

Lubricating Material ◽

Heating Technology

AbstractWith the concern of the environment, green dry cutting technology is getting more and more attention and self-lubricating tool technology plays an important role in dry cutting. Due to the demand for high temperature performance of tools during dry cutting process, cemented carbide with Ni3Al as the binder phase has received extensive attention due to its excellent high temperature strength and high temperature oxidation resistance. In this paper, WC-TiC-Ni3Al-CaF2 graded self-lubricating material and tools were prepared by microwave heating method, and its microstructure, mechanical properties and cutting performance were studied. Results show that gradient self-lubricating material can be quickly prepared by microwave heating technology, and the strength is equivalent to that of conventional heating technology. CaF2 not only plays a role in self-lubrication, but also refines the grain of the material. A reasonable gradient design can improve the mechanical properties of the material. When the gradient distribution exponent is n1 = 2, the material has high mechanical properties. Cutting experiments show that the WC-TiC-Ni3Al-CaF2 functional gradient self-lubricating tool has better cutting performance than the homogeneous WC-TiC-Ni3Al hard alloys.

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