SU1057176A1 - Method of casting at low pressure with backpressure - Google Patents

Method of casting at low pressure with backpressure Download PDF

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Publication number
SU1057176A1
SU1057176A1 SU813267563A SU3267563A SU1057176A1 SU 1057176 A1 SU1057176 A1 SU 1057176A1 SU 813267563 A SU813267563 A SU 813267563A SU 3267563 A SU3267563 A SU 3267563A SU 1057176 A1 SU1057176 A1 SU 1057176A1
Authority
SU
USSR - Soviet Union
Prior art keywords
melt
pressure
casting
mold
massive
Prior art date
Application number
SU813267563A
Other languages
Russian (ru)
Inventor
Франк Марьянович Котлярский
Георгий Павлович Борисов
Валентин Иванович Белик
Виктор Степанович Гавриш
Григорий Никитович Лысюк
Юрий Саввич Бурбело
Original Assignee
Институт проблем литья АН УССР
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Институт проблем литья АН УССР filed Critical Институт проблем литья АН УССР
Priority to SU813267563A priority Critical patent/SU1057176A1/en
Application granted granted Critical
Publication of SU1057176A1 publication Critical patent/SU1057176A1/en

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Abstract

1. СПОСОБ ЛИТЬЯ ПОД НИЗ КИМ ДАВЛЕНИЕМ С ПРОТИВОДАВЛЕНИЕМ , включающий насыщение расплава газом, создание противодавлени  в форме, заливку расплава в форму под избыточным давлением и выдержку его под давлением до затвердени , отличающийс  тем, что, с целью повышенн  качества отливок путем устранени  ут жин и трещин на поверхности массивных узлов отливки, после затвердевани  расплава вокруг массивного узла , противодавление на поверхности этого узла снижают. 2. Способ по п. 1, отличающийс  тем, что расплав насыщают водородом.1. METHOD FOR CASTING UNDER LOW PRESSURE SIMULATED PRESSURE, including saturating the melt with gas, creating a counterpressure in the mold, pouring the melt into the mold under excessive pressure and maintaining it under pressure until hardening, characterized in that, in order to improve the quality of the castings by eliminating the slabs and cracks on the surface of massive casting units, after solidification of the melt around the massive unit, the back pressure on the surface of this unit is reduced. 2. A method according to claim 1, characterized in that the melt is saturated with hydrogen.

Description

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Claims (2)

1. СПОСОБ ЛИТЬЯ ПОД НИЗ^ КИМ ДАВЛЕНИЕМ С ПРОТИВОДАВЛЕНИЕМ, включающий насыщение расплава газом,, создание противодавления в форме, заливку расплава в форму под избыточным давлением и выдержку его под давлением до затвердения, отличающийся тем, что, с целью повышения качества отливок путем устранения утяжин и трещин на поверхности массивных узлов отливки, после затвердевания расплава вокруг массивного узла, противодавление на поверхности этого узла снижают.1. METHOD FOR CASTING UNDER LOW PRESSURE WITH A PRESSURE, including saturation of the melt with gas, creating back pressure in the mold, pouring the melt into the mold under overpressure and holding it under pressure until it hardens, characterized in that, in order to improve the quality of castings by eliminating weights and cracks on the surface of massive casting units, after solidification of the melt around the massive unit, the back pressure on the surface of this unit is reduced. 2. Способ по π. 1, отличающийся тем, что расплав насыщают водородом.2. The method according to π. 1, characterized in that the melt is saturated with hydrogen. ЮYU
SU813267563A 1981-04-03 1981-04-03 Method of casting at low pressure with backpressure SU1057176A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU813267563A SU1057176A1 (en) 1981-04-03 1981-04-03 Method of casting at low pressure with backpressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU813267563A SU1057176A1 (en) 1981-04-03 1981-04-03 Method of casting at low pressure with backpressure

Publications (1)

Publication Number Publication Date
SU1057176A1 true SU1057176A1 (en) 1983-11-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU813267563A SU1057176A1 (en) 1981-04-03 1981-04-03 Method of casting at low pressure with backpressure

Country Status (1)

Country Link
SU (1) SU1057176A1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
1. Авторское свидетельство НРБ № 187, кл. 31 с 26.01, 1961. 2. Доклады, симпозиума по методу лить с противодавлением, 19-22 апрел 1973, Варна, 1973, с. 3-15. *

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