SU354933A1 - COATING COATING - Google Patents
COATING COATINGInfo
- Publication number
- SU354933A1 SU354933A1 SU1331621A SU1331621A SU354933A1 SU 354933 A1 SU354933 A1 SU 354933A1 SU 1331621 A SU1331621 A SU 1331621A SU 1331621 A SU1331621 A SU 1331621A SU 354933 A1 SU354933 A1 SU 354933A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- coating
- magnesium phosphate
- aqueous solution
- bentonite
- nonstick
- Prior art date
Links
- 239000011248 coating agent Substances 0.000 title description 7
- 238000000576 coating method Methods 0.000 title description 7
- GVALZJMUIHGIMD-UHFFFAOYSA-H Magnesium phosphate tribasic Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O GVALZJMUIHGIMD-UHFFFAOYSA-H 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 5
- 239000004137 magnesium phosphate Substances 0.000 description 5
- 229960002261 magnesium phosphate Drugs 0.000 description 5
- 229910000157 magnesium phosphate Inorganic materials 0.000 description 5
- 235000010994 magnesium phosphates Nutrition 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000000945 filler Substances 0.000 description 4
- HWKQNAWCHQMZHK-UHFFFAOYSA-N Trolnitrate Chemical compound [O-][N+](=O)OCCN(CCO[N+]([O-])=O)CCO[N+]([O-])=O HWKQNAWCHQMZHK-UHFFFAOYSA-N 0.000 description 3
- 239000000440 bentonite Substances 0.000 description 3
- 229910000278 bentonite Inorganic materials 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 241000234435 Lilium Species 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N Zirconium(IV) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 mono-substituted magnesium phosphate Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052851 sillimanite Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- 229910052846 zircon Inorganic materials 0.000 description 1
Description
Изобретение относитс к области литейного производства.The invention relates to the field of foundry.
Р1звестны составы, используемые при изготовлении форм, содержаи ие огнеупорный наполнитель и водный раствор фосфата магни .The compositions used in the manufacture of molds, containing a refractory filler and an aqueous solution of magnesium phosphate, are known.
Однако такие составы обладают недостаточными противопригарными свойствами, что приводит к браку отливок.However, such compounds have insufficient antiburn properties, which leads to marriage castings.
Отличие предложенного покрыти заключаетс во введении в состав бентонита при следующем соотношении компонентов (в вес. %): огнеупорный наполнитель основа (52-58), водный раствор фосфата магни 40-45, бентонит 2-3.The difference of the proposed coating is in the introduction of bentonite in the following ratio of components (in wt.%): Refractory filler base (52-58), an aqueous solution of magnesium phosphate 40-45, bentonite 2-3.
Предложенное покрытие обладает высокими прочностными и противопригарными свойствами и высокой адгезией к формовочным материалам .The proposed coating has high strength and nonstick properties and high adhesion to molding materials.
В качестве огнеупорного наполнител могут быть использованы электрокорунд, хромомагнезит , плавлена окись магни , циркон, силлиманит .As a refractory filler, electrocorundum, chromomagnesite, fused magnesium oxide, zircon, sillimanite can be used.
В качестве фосфата магни может быть использован водный раствор однозамещенного фосфата магни с удельным весом 1,1 - 1,3 г/сж2.As magnesium phosphate, an aqueous solution of mono-substituted magnesium phosphate with a specific gravity of 1.1 - 1.3 g / sg2 can be used.
ловий в состав покрыти ввод т ш,елочь дл получени рН среды в пределах 3-4.Lilium is introduced into the composition of the coating, a fur-tree for obtaining pH of the medium in the range of 3-4.
Один из вариантов предлагаемого состава (в вес. %):One of the variants of the proposed composition (in wt.%):
Электрокорунд52-58 Водный раствор однозамеш:енного фосфата магни 40-45Electrocorundum 52-58 Aqueous solution of one-mixture: of enriched magnesium phosphate 40-45
Бентонит2- 3 Щелочь дл получени рНBentonite-2 Alkali for pH
среды в пределах3- 4environments within 3-4
Наноситс покрытие кистью или пульверизатором слоем толщиной 0,2-0,9 мм в зависимости от веса и толщины стенки отливки.A brush or spray coating is applied with a layer of 0.2-0.9 mm thick, depending on the weight and wall thickness of the casting.
Предмет изобретени Subject invention
Противопригарное покрытие дл литейных форм и стержней, включающее огнеупорныйNonstick coating for casting molds and cores, including refractory
наполнитель и водный раствор фосфата магни в качестве св зующего, отличающеес тем, что, с целью улучшени противопригарных и прочностных свойств покрыти , в его состав введен бентонит при следующем соотношении компонентов (вес. %):a filler and an aqueous solution of magnesium phosphate as a binder, characterized in that, in order to improve the nonstick and strength properties of the coating, bentonite is introduced into its composition in the following ratio of components (wt.%):
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU354933A1 true SU354933A1 (en) |
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