SU1379067A1 - Sand for making moulds and cores - Google Patents
Sand for making moulds and cores Download PDFInfo
- Publication number
- SU1379067A1 SU1379067A1 SU864041221A SU4041221A SU1379067A1 SU 1379067 A1 SU1379067 A1 SU 1379067A1 SU 864041221 A SU864041221 A SU 864041221A SU 4041221 A SU4041221 A SU 4041221A SU 1379067 A1 SU1379067 A1 SU 1379067A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sodium aluminate
- mixture
- propylene carbonate
- density
- cores
- Prior art date
Links
- 239000004576 sand Substances 0.000 title description 2
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 229910001388 sodium aluminate Inorganic materials 0.000 claims abstract description 9
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims abstract description 7
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000945 filler Substances 0.000 claims abstract description 5
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 4
- 239000000377 silicon dioxide Substances 0.000 claims abstract 2
- 239000011230 binding agent Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- HGRQXFSEUWLBTH-UHFFFAOYSA-N [Na].C1(OCC(C)O1)=O Chemical compound [Na].C1(OCC(C)O1)=O HGRQXFSEUWLBTH-UHFFFAOYSA-N 0.000 claims 1
- 239000004615 ingredient Substances 0.000 claims 1
- 230000035699 permeability Effects 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- PVGBHEUCHKGFQP-UHFFFAOYSA-N sodium;n-[5-amino-2-(4-aminophenyl)sulfonylphenyl]sulfonylacetamide Chemical compound [Na+].CC(=O)NS(=O)(=O)C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=C1 PVGBHEUCHKGFQP-UHFFFAOYSA-N 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 239000004848 polyfunctional curative Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Landscapes
- Mold Materials And Core Materials (AREA)
Abstract
Изобретение относитс к области литейного производства и может быть использовано дл изготовлени форм и стержней из жидкостекольных смесей. Цель изобретени - улучшение выбива- емости смеси, котора достигаетс за счет введени в состав алюмината натри . Смесь содержит, мас.%: огнеупорный наполнитель на основе диоксида кремни 87,0 - 97,4, алюминат натри с модулем 1,05 - 1,7 и плотностью 1,59 - 1,66 г/см 1,5 - 9,0; пропи- ленкарбонат 1,1 - 4,0. Введение алюмината натри вместо жидкого стекла совместно с пропиленкарбонатом способствует улучшению выбиваемости смеси. 2 табл. i СЛThe invention relates to the field of foundry and can be used to make molds and cores from liquid-glass mixtures. The purpose of the invention is to improve the knockability of the mixture, which is achieved by incorporating sodium aluminate into the composition. The mixture contains, in wt.%: Refractory filler based on silica 87.0 - 97.4, sodium aluminate with a modulus of 1.05 - 1.7 and a density of 1.59 - 1.66 g / cm 1.5 - 9, 0; propylene carbonate 1.1 - 4.0. The introduction of sodium aluminate instead of liquid glass together with propylene carbonate contributes to the improvement of the blendability of the mixture. 2 tab. i SL
Description
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Изобретение относитс к литейному производству и может быть использс- вано дл изготовлени литейных форм и стержней из жидкостекольных смесейThe invention relates to a foundry and can be used for the manufacture of casting molds and cores from liquid glass mixtures.
Цель изобретени - улучшение выби- заемости смеси.The purpose of the invention is to improve the blendability of the mixture.
Смесь содержит огнеупорный наполнитель , св зующее и отвердитель. В качестве огнеупорного наполнител ис- пользуетс кварцевый песок с содержанием глинистой составл ющей до 6%.The mixture contains a refractory filler, a binder and a hardener. Quartz sand with a clay content of up to 6% is used as a refractory filler.
В качестве св зующего используетс алюминат натри , получаемый путем растворени гидроокиси алюмини в едком натре.Sodium aluminate obtained by dissolving aluminum hydroxide in caustic soda is used as a binder.
Пропиленкарбонат - эфир угольной кислоты, бесцветна жидкость с характерным запахом эфира. В технике примен етс дл синтеза пластических масс и в качестве растворител некоторых органических соединений, В смеси примен етс как отвердитель.Propylene carbonate is a carbonic ester, a colorless liquid with a characteristic smell of ether. The technique is used for the synthesis of plastics and as a solvent for some organic compounds. It is used as a hardener in the mixture.
Затвердевание смеси происходит за счет взаимодействи алюмината натри и пропиленкарбоната.The mixture hardens due to the interaction of sodium aluminate and propylene carbonate.
Смесь готов т следующим образом.The mixture is prepared as follows.
В бегуны загружают расчетное количество песка марки К016 и пропи- ленкарбоната, перемешивают в течение 2 мин, после чего ввод т алюминат натри и перемещиваютв течение 1,5 минRunners are loaded with an estimated amount of sand grade K016 and propylene carbonate, stirred for 2 minutes, after which sodium aluminate is introduced and moved for 1.5 minutes
Приготовленные формы заливаютCooked forms poured
алюминиевым сплавом при температуре заливки 720 С или сталью при температуре заливки 1580 С.aluminum alloy at a pouring temperature of 720 C or steel at a pouring temperature of 1580 C.
g g
5 five
0 0
5 five
5five
Составы предлагаемых смесей даны в табл.1.The compositions of the proposed mixtures are given in table.1.
Технологические свойства составов приведены в табл.2.Technological properties of the compositions are given in table 2.
Использование предлагаемых смесей позволит улучщить выбиваемость форм и стержней и расширить сырьевую базу за счет использовани песков с содержанием глинистой составл ющей до 6%.The use of the proposed mixtures will improve the knockout of the forms and cores and expand the raw material base by using sands with a clay content of up to 6%.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU864041221A SU1379067A1 (en) | 1986-03-24 | 1986-03-24 | Sand for making moulds and cores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU864041221A SU1379067A1 (en) | 1986-03-24 | 1986-03-24 | Sand for making moulds and cores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1379067A1 true SU1379067A1 (en) | 1988-03-07 |
Family
ID=21227958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU864041221A SU1379067A1 (en) | 1986-03-24 | 1986-03-24 | Sand for making moulds and cores |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1379067A1 (en) |
-
1986
- 1986-03-24 SU SU864041221A patent/SU1379067A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Авторское свидетельство СССР № 1087244, кл. В 22 С 1/02, 1983. Патент JP № 52-102825, кл. 11 А 212, 1976. * |
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