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Development of a higher-density pressing technology using gas drainage. II. Device for evaluating the efficiency of gas drainage from molding dies and experimental assessment of factors affecting it

  • Theory And Technology Of The Molding Process
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Powder Metallurgy and Metal Ceramics Aims and scope

Abstract

A device designed specifically to determine the efficiency of gas drainage during ejection from a molding die and the intrapore gas pressure in compacts is described. This device was used to study how the morphology of iron powder particles, the size and shape of the molded parts, the compact rate and production run, as well as amount of plasticizer affect the parameters studied. Recommendations are made for developing technologies for pressing high-density briquets.

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References

  1. A. T. Mamedov, “Development of a higher-density pressing technology using gas drainage. I. Mathematical analysis of gas drainage from molding dies during pressing and the intrapore gas pressure in the compacts,” Poroshk. Metall., Nos. 5–6, 34 (1994).

  2. Yu. V. Zhuravskii, A. S. Egorov, A. A. Bol'shov, and A. N. Baleevskikh, “Mass flowmeter of a gas with variable parameters, Inventor's Certificate 366358 SSSR,” Otkryt. Izobret., No. 7, 75 (1973).

  3. Yu. G. Dorofeev, V. A. Geidarov, A. T. Mamedov, and V. V. Rumyantsev, “Device for monitoring the outgassing of powder during pressing, Inventor's Certificate 1560398 SSSR,” Otkryt. Izobret., No. 16, 65 (1990).

  4. Ya. B. Shlimak and A. T. Mamedov, “Technology of fabrication of the roller for a domestic air conditioner,” Poroshk. Metall., No. 9, 93 (1985).

  5. A. T. Mamedov, “Production of a complex sintered part for a rotary compressor,” in: Progressive Methods of Increasing the Strength, Porosity, and Long-Lived Structural Materials [in Russian], Baku (1984), pp. 62–65.

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Authors
  1. A. T. Mamedov
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Additional information

Scientific Industrial Firm “Bakkonditsioner.” Translated from Poroshkovaya Metallurgiya, Nos. 7–8, pp. 19–26, July–August, 1994.

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Mamedov, A.T. Development of a higher-density pressing technology using gas drainage. II. Device for evaluating the efficiency of gas drainage from molding dies and experimental assessment of factors affecting it. Powder Metall Met Ceram 33, 351–356 (1995). https://doi.org/10.1007/BF00559579

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  • DOI: https://doi.org/10.1007/BF00559579

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