ES472370A1 - Stabilizing of viscosity of aqueous magnesia slurry and increasing concentration thereof - Google Patents
Stabilizing of viscosity of aqueous magnesia slurry and increasing concentration thereofInfo
- Publication number
- ES472370A1 ES472370A1 ES472370A ES472370A ES472370A1 ES 472370 A1 ES472370 A1 ES 472370A1 ES 472370 A ES472370 A ES 472370A ES 472370 A ES472370 A ES 472370A ES 472370 A1 ES472370 A1 ES 472370A1
- Authority
- ES
- Spain
- Prior art keywords
- mgo
- viscosity
- suspension
- phosphate
- stabilizing
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 title 2
- 239000000395 magnesium oxide Substances 0.000 title 1
- 239000002002 slurry Substances 0.000 title 1
- 230000000087 stabilizing effect Effects 0.000 title 1
- 229910019142 PO4 Inorganic materials 0.000 abstract 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 abstract 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract 3
- 239000010452 phosphate Substances 0.000 abstract 3
- 239000000725 suspension Substances 0.000 abstract 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 2
- 229910000976 Electrical steel Inorganic materials 0.000 abstract 1
- 229920000388 Polyphosphate Polymers 0.000 abstract 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000001205 polyphosphate Substances 0.000 abstract 1
- 235000011176 polyphosphates Nutrition 0.000 abstract 1
- 230000003019 stabilising effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
- C23D5/00—Coating with enamels or vitreous layers
- C23D5/10—Coating with enamels or vitreous layers with refractory materials
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
- C21D1/70—Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/14766—Fe-Si based alloys
- H01F1/14775—Fe-Si based alloys in the form of sheets
- H01F1/14783—Fe-Si based alloys in the form of sheets with insulating coating
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Electromagnetism (AREA)
- Dispersion Chemistry (AREA)
- Power Engineering (AREA)
- Chemical Treatment Of Metals (AREA)
- Fertilizers (AREA)
Abstract
Method of stabilising the viscosity and increasing the concn. of an aq. suspension of MgO in which the MgO has a citric acid activity 200 secs. Consists of mixing MgO with water and a decomposable phosphate cpd. selected from the phosphate of Ca,al,Mg, NH4 polyphosphate and phosphoric acid and their mixts. The MgO is added in an amount sufficient to obtain 0.1-0.24 g/cc in the suspension and the phosphate is added in an amount of 0.5-25 (-0.5-10) pref. 0.5-4.5 wt% P2O5 wrt the MgO. Used for forming a glass insulating coating on a strip of oriented silicon steel or a stack of such sheets for use in transformer cores. A smooth suspension with a higher viscosity than it prior art can be obtd. with stability over periods up to 1h. without globule formation etc.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US82159677A | 1977-08-04 | 1977-08-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES472370A1 true ES472370A1 (en) | 1979-10-01 |
Family
ID=25233792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES472370A Expired ES472370A1 (en) | 1977-08-04 | 1978-08-04 | Stabilizing of viscosity of aqueous magnesia slurry and increasing concentration thereof |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5460279A (en) |
| BE (1) | BE869479A (en) |
| BR (1) | BR7804962A (en) |
| CA (1) | CA1112136A (en) |
| DE (1) | DE2834321C2 (en) |
| ES (1) | ES472370A1 (en) |
| FR (1) | FR2399485A1 (en) |
| IN (1) | IN149613B (en) |
| MX (1) | MX152068A (en) |
| SE (1) | SE7808374L (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5558331A (en) * | 1978-10-25 | 1980-05-01 | Kawasaki Steel Corp | Forming method for forsterite insulation film of anisotropic silicon steel plate |
| CA1166804A (en) * | 1982-05-06 | 1984-05-08 | Michael H. Haselkorn | Stable slurry of inactive magnesia and method therefor |
| JPS63148011U (en) * | 1987-03-18 | 1988-09-29 | ||
| DE69015060T2 (en) * | 1989-09-08 | 1995-04-27 | Armco Inc | Magnesium oxide coating for electrical sheets and coating processes. |
| US6716490B2 (en) * | 2002-01-30 | 2004-04-06 | Kawasaki Steel Metal Products & Engineering Inc. | Method for making enameled steel sheet |
| DE102013102301A1 (en) * | 2013-03-08 | 2014-09-11 | Chemische Fabrik Budenheim Kg | Coating system based on a combination of monoaluminum phosphate with magnesium oxide |
| WO2015058236A1 (en) | 2013-10-24 | 2015-04-30 | Calix Ltd | Process and apparatus for manufacture of hydroxide slurry |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3615918A (en) * | 1969-03-28 | 1971-10-26 | Armco Steel Corp | Method of annealing with a magnesia separator containing a decomposable phosphate |
| BE795568A (en) * | 1972-03-01 | 1973-06-18 | Asea Ab | COATING PROCESS OF A STEEL OBJECT WITH SILICON |
| US3841925A (en) * | 1973-09-12 | 1974-10-15 | Morton Norwich Products Inc | Magnesium oxide steel coating composition and process |
| GB1548881A (en) * | 1975-02-11 | 1979-07-18 | Albright & Wilson | Process for dispersing solid materilas |
-
1978
- 1978-08-02 BR BR7804962A patent/BR7804962A/en unknown
- 1978-08-03 JP JP9499478A patent/JPS5460279A/en active Granted
- 1978-08-03 MX MX174407A patent/MX152068A/en unknown
- 1978-08-03 FR FR7823023A patent/FR2399485A1/en active Granted
- 1978-08-03 CA CA308,737A patent/CA1112136A/en not_active Expired
- 1978-08-03 BE BE189667A patent/BE869479A/en not_active IP Right Cessation
- 1978-08-03 SE SE7808374A patent/SE7808374L/en unknown
- 1978-08-04 DE DE2834321A patent/DE2834321C2/en not_active Expired
- 1978-08-04 ES ES472370A patent/ES472370A1/en not_active Expired
- 1978-08-08 IN IN586/DEL/78A patent/IN149613B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5460279A (en) | 1979-05-15 |
| BR7804962A (en) | 1979-05-08 |
| DE2834321C2 (en) | 1984-09-13 |
| FR2399485B1 (en) | 1981-02-06 |
| JPS6225751B2 (en) | 1987-06-04 |
| IN149613B (en) | 1982-02-13 |
| CA1112136A (en) | 1981-11-10 |
| BE869479A (en) | 1978-12-01 |
| MX152068A (en) | 1985-05-28 |
| FR2399485A1 (en) | 1979-03-02 |
| SE7808374L (en) | 1979-02-05 |
| DE2834321A1 (en) | 1979-02-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 20001009 |