Combination of spray forming and metal powder productions by the internal mixing atomizer with a substrate

Muh Rong Wang, Pin Jen Chen, Je Rei Yang, Jin Shen Chiu, Tien-Chu Lin, Teng Sun Lai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

This paper describes the performance of an atomizer coupled with a substrate which produces metal powder and spray forming materials simultaneous in the spray chamber. Ultra fine metal powders are produced from this process. The melt is atomized by a twin-fluid atomizer with internal mixing mechanisms. The molten spray injected from the swirling chamber of the atomizer is then impinged upon the substrate to form the two phase impinging flow. The deposition rate of the molten spray on the substrate is controlled by the diameter of the substrate, the height of the substrate ring and the distance of the substrate from the outlet of the atomizer. This in turn determines the powder production rate of the spraying processes. Experimental results indicate that the deposition rate of the spray forming material decreases as the distance between the substrate and the atomizer increases. For example, the deposition rate decreases from 48% to 19% as the substrate is placed at a distance from 20cm to 40cm. On the other hand, the metal powder production rate and its particle size increases as the substrate is placed far away from the atomizer. The production of metal powder with mean particle size as low as 3 μm level has been achieved, a level which is not achievable by the conventional gas atomization processes.

Original languageEnglish
Title of host publicationProgress on Advanced Manufacture for Micro/Nano Technology 2005 - Proceedings of the 2005 International Conference on Advanced Manufacture
Pages1237-1242
Number of pages6
EditionPART 2
Publication statusPublished - 2006 Dec 1
Event2005 International Conference on Advanced Manufacture, ICAM2005 - Taipei, R.O.C., Taiwan
Duration: 2005 Nov 282005 Dec 2

Publication series

NameMaterials Science Forum
NumberPART 2
Volume505-507
ISSN (Print)0255-5476

Other

Other2005 International Conference on Advanced Manufacture, ICAM2005
CountryTaiwan
CityTaipei, R.O.C.
Period05-11-2805-12-02

Fingerprint

atomizers
Atomizers
metal powder
Powder metals
sprayers
Substrates
Deposition rates
Molten materials
chambers
Particle size
gas atomization
swirling
spraying
Atomization
two phase flow
Spraying
outlets
Two phase flow
Powders
Gases

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Wang, M. R., Chen, P. J., Yang, J. R., Chiu, J. S., Lin, T-C., & Lai, T. S. (2006). Combination of spray forming and metal powder productions by the internal mixing atomizer with a substrate. In Progress on Advanced Manufacture for Micro/Nano Technology 2005 - Proceedings of the 2005 International Conference on Advanced Manufacture (PART 2 ed., pp. 1237-1242). (Materials Science Forum; Vol. 505-507, No. PART 2).
Wang, Muh Rong ; Chen, Pin Jen ; Yang, Je Rei ; Chiu, Jin Shen ; Lin, Tien-Chu ; Lai, Teng Sun. / Combination of spray forming and metal powder productions by the internal mixing atomizer with a substrate. Progress on Advanced Manufacture for Micro/Nano Technology 2005 - Proceedings of the 2005 International Conference on Advanced Manufacture. PART 2. ed. 2006. pp. 1237-1242 (Materials Science Forum; PART 2).
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abstract = "This paper describes the performance of an atomizer coupled with a substrate which produces metal powder and spray forming materials simultaneous in the spray chamber. Ultra fine metal powders are produced from this process. The melt is atomized by a twin-fluid atomizer with internal mixing mechanisms. The molten spray injected from the swirling chamber of the atomizer is then impinged upon the substrate to form the two phase impinging flow. The deposition rate of the molten spray on the substrate is controlled by the diameter of the substrate, the height of the substrate ring and the distance of the substrate from the outlet of the atomizer. This in turn determines the powder production rate of the spraying processes. Experimental results indicate that the deposition rate of the spray forming material decreases as the distance between the substrate and the atomizer increases. For example, the deposition rate decreases from 48{\%} to 19{\%} as the substrate is placed at a distance from 20cm to 40cm. On the other hand, the metal powder production rate and its particle size increases as the substrate is placed far away from the atomizer. The production of metal powder with mean particle size as low as 3 μm level has been achieved, a level which is not achievable by the conventional gas atomization processes.",
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Wang, MR, Chen, PJ, Yang, JR, Chiu, JS, Lin, T-C & Lai, TS 2006, Combination of spray forming and metal powder productions by the internal mixing atomizer with a substrate. in Progress on Advanced Manufacture for Micro/Nano Technology 2005 - Proceedings of the 2005 International Conference on Advanced Manufacture. PART 2 edn, Materials Science Forum, no. PART 2, vol. 505-507, pp. 1237-1242, 2005 International Conference on Advanced Manufacture, ICAM2005, Taipei, R.O.C., Taiwan, 05-11-28.

Combination of spray forming and metal powder productions by the internal mixing atomizer with a substrate. / Wang, Muh Rong; Chen, Pin Jen; Yang, Je Rei; Chiu, Jin Shen; Lin, Tien-Chu; Lai, Teng Sun.

Progress on Advanced Manufacture for Micro/Nano Technology 2005 - Proceedings of the 2005 International Conference on Advanced Manufacture. PART 2. ed. 2006. p. 1237-1242 (Materials Science Forum; Vol. 505-507, No. PART 2).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AU - Lai, Teng Sun

PY - 2006/12/1

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N2 - This paper describes the performance of an atomizer coupled with a substrate which produces metal powder and spray forming materials simultaneous in the spray chamber. Ultra fine metal powders are produced from this process. The melt is atomized by a twin-fluid atomizer with internal mixing mechanisms. The molten spray injected from the swirling chamber of the atomizer is then impinged upon the substrate to form the two phase impinging flow. The deposition rate of the molten spray on the substrate is controlled by the diameter of the substrate, the height of the substrate ring and the distance of the substrate from the outlet of the atomizer. This in turn determines the powder production rate of the spraying processes. Experimental results indicate that the deposition rate of the spray forming material decreases as the distance between the substrate and the atomizer increases. For example, the deposition rate decreases from 48% to 19% as the substrate is placed at a distance from 20cm to 40cm. On the other hand, the metal powder production rate and its particle size increases as the substrate is placed far away from the atomizer. The production of metal powder with mean particle size as low as 3 μm level has been achieved, a level which is not achievable by the conventional gas atomization processes.

AB - This paper describes the performance of an atomizer coupled with a substrate which produces metal powder and spray forming materials simultaneous in the spray chamber. Ultra fine metal powders are produced from this process. The melt is atomized by a twin-fluid atomizer with internal mixing mechanisms. The molten spray injected from the swirling chamber of the atomizer is then impinged upon the substrate to form the two phase impinging flow. The deposition rate of the molten spray on the substrate is controlled by the diameter of the substrate, the height of the substrate ring and the distance of the substrate from the outlet of the atomizer. This in turn determines the powder production rate of the spraying processes. Experimental results indicate that the deposition rate of the spray forming material decreases as the distance between the substrate and the atomizer increases. For example, the deposition rate decreases from 48% to 19% as the substrate is placed at a distance from 20cm to 40cm. On the other hand, the metal powder production rate and its particle size increases as the substrate is placed far away from the atomizer. The production of metal powder with mean particle size as low as 3 μm level has been achieved, a level which is not achievable by the conventional gas atomization processes.

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M3 - Conference contribution

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T3 - Materials Science Forum

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EP - 1242

BT - Progress on Advanced Manufacture for Micro/Nano Technology 2005 - Proceedings of the 2005 International Conference on Advanced Manufacture

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Wang MR, Chen PJ, Yang JR, Chiu JS, Lin T-C, Lai TS. Combination of spray forming and metal powder productions by the internal mixing atomizer with a substrate. In Progress on Advanced Manufacture for Micro/Nano Technology 2005 - Proceedings of the 2005 International Conference on Advanced Manufacture. PART 2 ed. 2006. p. 1237-1242. (Materials Science Forum; PART 2).