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SU416146A1 - - Google Patents

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Publication number
SU416146A1
SU416146A1 SU1482814A SU1482814A SU416146A1 SU 416146 A1 SU416146 A1 SU 416146A1 SU 1482814 A SU1482814 A SU 1482814A SU 1482814 A SU1482814 A SU 1482814A SU 416146 A1 SU416146 A1 SU 416146A1
Authority
SU
USSR - Soviet Union
Prior art keywords
heat resistance
sodium alginate
fused silica
fused
manufacture
Prior art date
Application number
SU1482814A
Other languages
Russian (ru)
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 filed Critical
Priority to SU1482814A priority Critical patent/SU416146A1/ru
Application granted granted Critical
Publication of SU416146A1 publication Critical patent/SU416146A1/ru

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Description

1one

Изобретение относитс  к литейному производству , в частЕюсти к точному литью, получаемому в керамических формах по выплавл емым модел м, из различных металлов и силавов на их основе.The invention relates to foundry, in particular, to the precision casting obtained in ceramic molds on melted models, from various metals and based on them.

Известно изготовление форм из смеси на основе плавленой двуокиси кремни .It is known to manufacture molds from a mixture based on fused silica.

Однако введение в такую смесь специальных добавок позволит увеличить ее термостойкость и жаропрочность, а также иметь низкий коэффициеит термического расширени .However, the introduction of special additives into such a mixture will make it possible to increase its heat resistance and heat resistance, and also to have a low coefficient of thermal expansion.

Цель изобретени  - получение формовочной массы, котора  обладала бы низким коэффициентом термического расширени , повышенной жаропрочностью и термостойкостью , а также предотвраш,ала бы адгезию зерен плавленой двуокиси кремни  к стенкам формы.The purpose of the invention is to obtain a molding material, which would have a low coefficient of thermal expansion, increased heat resistance and heat resistance, as well as prevent the adhesion of fused silica grains to the walls of the mold.

Дл  этой цели используют массу на основе двуокиси кремни , в которую ввод т двуокись титана и альгинат натри  в количествах соответственно 2,0-5,0 и 0,05-0,1 вес. %.For this purpose, a silica-based mass is used, into which titanium dioxide and sodium alginate are introduced in amounts of 2.0-5.0 and 0.05-0.1, respectively. %

Предлагаема  формовочна  масса может быть использована дл  лить  как черных, так и цветных металлов и сплавов на их основе при повышенной температуре расплава.The proposed molding material can be used to cast both ferrous and non-ferrous metals and alloys based on them at elevated melt temperatures.

Это достигаетс  благодар  отсутствию разлагающихс  добавок и наличию аморфнойThis is achieved due to the absence of decomposing additives and the presence of amorphous

.п;вуокиси кремни . Введение двуокиси титана кроме повьииен1   жаропрочности и термостойкости способе вует получению равнопрочной формы на всех стади х заливки и охлаждени  отливки. Дл  увеличени  газопроницаемости черепка формы в массу добавл ют пенообразователь , ,1апример, альгинат натри . Концентраци  компонентов формовочной массы , вес. %:silicon; The introduction of titanium dioxide, except for heat resistance and heat resistance, is capable of obtaining uniform strength at all stages of casting and cooling of the casting. To increase the gas permeability of the shape shard, a foaming agent, eg sodium alginate, is added to the mass. The concentration of the components of the molding mass, weight. %:

Плавлена  двуокись кремни ОсноваFused silicon dioxide Basis

Двуокись титана2,0-5,0Titanium dioxide2.0-5.0

Альгипат натри 0,05-0,1Algipat sodium 0.05-0.1

Предмет изобретени Subject invention

Формовочна  смесь дл  изготовлени  форм в производстве лнть  по выплавл емым модел м на основе плавленой двуокиси кремни , отличаюш.а с  тем, что, с целью увеличеии  ее термостойкости и н аропрочности, а также предотврап ени  адгезии зерен плавленой двуокиси кремни  к стенкам формы, в ее состав введены двуокись титана и альгинат натри  нрн следующем соотношении между компонентами, вес. %: Плавлена  двуокись кремни ОсноваThe molding mixture for the manufacture of molds in the manufacture of lithium-based fused silica based models is different in that, in order to increase its heat resistance and heat resistance, as well as prevent the adhesion of fused silica grains to the walls of the mold, its composition is introduced titanium dioxide and sodium alginate nrn the following ratio between the components, wt. %: Fused silicon dioxide Basis

Двуокись титана2,0-5,0Titanium dioxide2.0-5.0

Альгинат натри 0,05-0,1Sodium alginate 0.05-0.1

SU1482814A 1970-10-12 1970-10-12 SU416146A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1482814A SU416146A1 (en) 1970-10-12 1970-10-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1482814A SU416146A1 (en) 1970-10-12 1970-10-12

Publications (1)

Publication Number Publication Date
SU416146A1 true SU416146A1 (en) 1974-02-25

Family

ID=20458350

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1482814A SU416146A1 (en) 1970-10-12 1970-10-12

Country Status (1)

Country Link
SU (1) SU416146A1 (en)

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