EP1064112B1 - Verwendung von eisenglimmer bei der herstellung von gussformen - Google Patents
Verwendung von eisenglimmer bei der herstellung von gussformen Download PDFInfo
- Publication number
- EP1064112B1 EP1064112B1 EP99909984A EP99909984A EP1064112B1 EP 1064112 B1 EP1064112 B1 EP 1064112B1 EP 99909984 A EP99909984 A EP 99909984A EP 99909984 A EP99909984 A EP 99909984A EP 1064112 B1 EP1064112 B1 EP 1064112B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mould material
- iron oxide
- plate
- lamellar structure
- cast
- 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 - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title description 105
- 239000010445 mica Substances 0.000 title description 56
- 229910052618 mica group Inorganic materials 0.000 title description 56
- 229910052742 iron Inorganic materials 0.000 title description 52
- 238000004519 manufacturing process Methods 0.000 title description 10
- 239000000203 mixture Substances 0.000 claims description 62
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 43
- 239000000654 additive Substances 0.000 claims description 32
- 238000005266 casting Methods 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 23
- 230000000996 additive effect Effects 0.000 claims description 21
- 238000000576 coating method Methods 0.000 claims description 11
- 229910045601 alloy Inorganic materials 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 9
- 229910001018 Cast iron Inorganic materials 0.000 claims description 8
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 6
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 39
- 239000012778 molding material Substances 0.000 description 37
- 239000006004 Quartz sand Substances 0.000 description 19
- 238000007711 solidification Methods 0.000 description 19
- 230000008023 solidification Effects 0.000 description 19
- 238000007792 addition Methods 0.000 description 15
- 238000001816 cooling Methods 0.000 description 13
- 238000010438 heat treatment Methods 0.000 description 12
- 235000012216 bentonite Nutrition 0.000 description 11
- 238000000465 moulding Methods 0.000 description 11
- 239000000440 bentonite Substances 0.000 description 10
- 229910000278 bentonite Inorganic materials 0.000 description 10
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 10
- 239000011230 binding agent Substances 0.000 description 10
- 235000013980 iron oxide Nutrition 0.000 description 10
- 239000004576 sand Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 239000000126 substance Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000012856 packing Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 235000013339 cereals Nutrition 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 229910052845 zircon Inorganic materials 0.000 description 4
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 235000011837 pasties Nutrition 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000033558 biomineral tissue development Effects 0.000 description 2
- -1 clays Substances 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005094 computer simulation Methods 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- LIXXICXIKUPJBX-UHFFFAOYSA-N [Pt].[Rh].[Pt] Chemical compound [Pt].[Rh].[Pt] LIXXICXIKUPJBX-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 239000011019 hematite Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000011049 pearl Substances 0.000 description 1
- 239000003415 peat Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 235000013759 synthetic iron oxide Nutrition 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000002076 thermal analysis method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
Definitions
- the present invention relates to the use of iron mica for the production of molds, especially lost molds, and cores for casting castings from non-ferrous, Cast iron and cast steel alloys as well as molding compounds containing mica.
- iron mica can also be used as an additive for moldings for molds and cores, used in entire area of the foundry industry, as well as an additive for exothermic Dining aids are used.
- a lost form means a sand form, solidified through organic or inorganic binders (e.g. clays, Resins) which can only be used once and after Pouring for casting emptying must be destroyed.
- organic or inorganic binders e.g. clays, Resins
- Cores have the task of creating cavities or undercuts in the casting To form outer contours. Differentiates according to their usability analogue to mold production, cores for single use (lost cores, sand cores) and permanent cores (metal cores), that are used repeatedly. Sand cores are separated manufactured interior parts. You will be assembling the Mold inserted, inserted or hung into the outer mold parts. Both lost forms and lost cores become mainly because of this in the foundry industry very large percentage used because it is relatively inexpensive can be produced and the molding material after destruction of the shapes reconditioned and to produce new shapes again can be used.
- Finishing or blackening are refractory Substances used in liquid or pasty form to produce a thin coating on the mold walls or cores (sand cores, Metal cores) are used and heat-insulating, heat-conducting, have a smoothing, separating or blocking effect. Depending on These coatings are used accordingly and appropriately Additives added.
- Molds are made with molding materials made from binder (organic or inorganic), mold raw material, water and Mold additives exist. These terms are used in explained the following:
- All molds are used as the mold in the present description to understand the manufacture of castings, such as Sand mold, Chill mold, die casting mold, ceramic investment mold or shell mold. Only as examples are outer and inner mold parts, Box shapes, boxless shapes, core shapes and mask shapes called.
- Molding material is the collective name for all dry, moist, pasty or liquid substances for the production of casting molds, which compresses, solidifies or by chemical processes be bound, e.g. Form and core sands, flow sands, form slips and ceramic molding compounds. Acting in the form of raw materials it is natural mineral or synthetic granules or sands that are used to manufacture single use serving forms are used.
- Binder is understood to mean constituents of molding material, and certain Requirements (moistening, swelling, silicate formation, Polymerization etc.) the bond between the individual grains of sand produce.
- source binders e.g. Bentonites that swell by adding a mixing liquid
- ceramic binders e.g. alumina, which solidify through drying or sintering in the heat
- hydraulic binders e.g. Gypsum or cement that react with a mixing liquid and hardening
- chemically hardening binders e.g. water glass, Ethyl silicate or synthetic resins
- molding material means an addition to those containing binder Mold or core sand mixes, which are the performance characteristics improve and / or the interaction between molding material and cast metal.
- examples are glossy carbon formers, Starches, calcined soda, boric acid, as well as wood and Called peat flour.
- Defects occurring in castings can be caused by the molding material have (mold-related casting defects), or metallurgical (Microporosity, slag inclusions, perspiration pearls, Shrinkage and stress cracks, segregations etc.) or technologically (Offset, cold casting, dimensional inaccuracy, etc.).
- iron mica mentioned here is in ISO 10601 (first edition 1993-08-15), the sieve residue of max. 0.1% on the However, 105 ⁇ m sieve is expressly excluded. So is under Iron mica - CAS No. 1317-60-8 - also iron oxide (alpha hematite) to understand that has a higher sieve residue.
- iron oxide (according to ISO / DIS 1248.2) - mostly as iron oxide red - as a molding additive is known and is considered "state of the art". These are powdery, mostly amorphous, iron oxides of high fineness. The usual additional quantities are approx. 0.5-1%.
- Mica is dark gray in color with a metallic sheen. Mica shows a platelet-shaped, lamellar structure and is therefore different from natural and synthetic iron oxides. The chemical composition with Fe 2 O 3 applies to both products in pure form.
- iron mica for the production of Molds especially lost molds and cores for casting of castings from non-ferrous, cast iron and cast steel alloys to use, being used to manufacture the molds and cores used molding material mixture 4 to 90% by mass, preferably 4 up to 50% by mass, in particular 4-20% by mass, of iron mica as a molding additive contains.
- the use of iron mica for the production of Molded material coatings (finishing / blackening) provided, the Proportion of iron mica 0.1 to 10 mass% in the solid mass of the coating should be.
- the one used for the application Mold coating is liquid or pasty and contains depending correspondingly less of the carriers used Micaceous iron oxide.
- the iron mica used according to the invention has the negative Properties of iron oxide red do not show up. As the cause of this The main effect is its platelet-shaped, lamellar View structure that also allows the percentage in the respective molding material mixture compared to iron oxide (Iron oxide red) without negatively affecting the Strength properties of the form / core.
- Typical casting defects, such as leaf veins, mineralization, pinholes, etc. become clear reduced, the surface quality is improved and the microstructure formation, especially with AlSiMg alloys, taking into account a high packing density of the molding material / iron mica mixture is greatly refined. As a result, they are better mechanical Properties, savings in a subsequent heat treatment as well as lower cleaning costs.
- iron mica is according to the invention Additive provided for exothermic food aids. Due to the surprising, highly insulating effect of iron mica as pure, binder-free material is such a use of Iron mica is particularly beneficial. Suitable additional amounts are about 0.1 to 20% by mass of iron mica.
- thermocouples used (they consist of two wires different metals which are welded at the ends) generate by heating the welding point of the "thermocouple" Electricity with a sensitive millivoltmeter that in the Conductor circuit is installed, measured and referred to as thermal voltage becomes. This thermal voltage is a measure of the temperature at the measuring point. Depending on the time, this results in Cooling or heating curves.
- the thermocouple pairs used were made of platinum-platinum-rhodium with a temperature range from 0 to 1300 ° C and a thermal voltage of 10.5 uV / K.
- the device according to FIG. 1 proved to be optimal.
- the basic form 1 consisted of water glass / CO 2 hardened quartz sand, in which a copper tube 2 (diameter 30 mm, wall thickness 1.5 mm) was placed exactly in the middle. This copper tube serves as the actual shape for the cast material 3; The material to be measured was then either poured around the copper pipe into region 4 or compacted as a mixture of molding materials. Thermocouples 5 were used at suitable locations.
- Copper was used because of this material has good thermal conductivity, so the casting heat well on the transferred to investigated granular substances or mixtures of molding materials becomes. At the same time, the thermal stability should be so large that the copper form does not melt and before especially when measuring loose, pure granular substances Dimensional stability until the end of solidification is guaranteed.
- the proportions are as a result of the computational simulation the mold filling and solidification processes chosen so that both a constant compression (e.g. only by the Bulk density of the pure substances) as well as a sufficiently sensitive Measurement of the temperature gradient is possible.
- thermophysical parameters in the computer simulation of the materials used are unconditional prerequisites, but these are with iron mica not available and i.a. determined with these studies data from zircon, chromite and quartz sand used.
- thermocouples 5 are in the thermal center of the Cast material (GG, G-AlSi7Mg) and in the granular material or in the molding material mixture attached 20 mm from the metal / mold interface and constant in all attempts. All measurements were taken until the end of the experiment with a measuring speed of one value per Second recorded.
- the properties of iron mica additives of the bentonite-bound molding material is not adversely affected. A significant increase in the amount of binder is not necessary.
- FIG.7 are the cooling curves of G-AlSi7Mg using of mixture I (M10N) and II (M20N) as well as a comparison of one Quartz sand mixture without iron mica additive (Q1N) for normal Compaction (corresponds to a conventional machine molding shop).
- the heating curves of the molding material mixtures shown in Fig. 8 during solidification show the same tendency as in Fig. 6, however, the curve is due to binder components and Water addition another.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Description
- Zirkonsand
- = 104 sec.
- Chromitsand
- = 112 sec.
- Quarzsand
- = 138 sec.
- binderfreiem Zirkonsand
- = 58 sec.
- binderfreiem Chromitsand
- = 67 sec.
- binderfreiem Quarzsand
- = 80 sec.
- binderfreiem Eisenglimmer
- = 139 sec.
| Mischung I | Mischung II |
| 90 GT Quarzsand | 80 GT Quarzsand |
| 10 GT Eisenglimmer darauf bezogen | 20 GT Eisenglimmer |
| 6 % Bentonit | 8 % Bentonit |
| 3,5 % Wasser | 4,0 % Wasser |
| Mischung I | Mischung II | |
| Schüttdichte g/l | 755 | 782 |
| Feuchtigkeit % | 3,5 | 4,0 |
| Verdichtbarkeit % | 38 | 32 |
| Gasdurchlässigkeit | 80 | 68 |
| Druckfestigkeit N/cm2 | 16,9 | 19,2 |
| Naßzugfestigkeit N/cm2 | 0,22 | 0,20 |
- Mischung I (10 % Eisenglimmer)
- = 83 sec.
- Mischung II (20 % Eisenglimmer)
- = 87 sec.
- Mischung ohne Zusatz
- = 102 sec.
- Mischung I - M1ON
- = 83 sec.
- Mischung I - M1OH
- = 43 sec.
- Quarzsandmischung - Q1N
- = 102 sec.
- Mischung I - M1OH
- = 43 sec.
- Mischung II - M20H
- = 37 sec.
- Quarzsandmischung - Q1N
- = 102 sec.
Claims (10)
- Verwendung von plättchenförmigem Eisenglimmer lamellarer Struktur zur Herstellung von Gußformen, insbesondere verlorenen Gußformen und Kernen, sowohl organisch als auch anorganisch gebunden, zum Gießen von Gußstücken aus Nichteisen-, Gußeisen und Stahlgußlegierungen, dadurch gekennzeichnet, daß die zur Herstellung der Gußformen bzw. Kerne verwendete Formstoffmischung 4 bis 90 Masse-% plättchenförmigen Eisenglimmer lamellarer Struktur als Formstoffzusatz enthält.
- Verwendung nach Anspruch 1, dadurch gekennzeichnet, daß die Formstoffmischung 4 bis 50 Masse-% plättchenförmigen Eisenglimmer lamellarer Struktur als Formstoffzusatz enthält.
- Verwendung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Formstoffmischung 4 bis 20 Masse-% plättchenförmigen. Eisenglimmer lamellarer Struktur als Formstoffzusatz enthält.
- Verwendung von plättchenförmigem Eisenglimmer lamellarer-Struktur zur Herstellung von Formstoffüberzügen für Kerne und Gußformen, organisch oder anorganisch gebunden, zum Gießen von Gußstücken aus Nichteisen-, Gußeisen und Stahlgußlegierungen, dadurch gekennzeichnet, daß die zur Herstellung des Formstoffüberzuges verwendete Mischung plättchenförmigen Eisenglimmer lamellarer Struktur in einer Menge von 0,1-10 Masse-%, bezogen auf die Feststoffmasse des Überzuges, enthält.
- Verwendung von plättchenförmigem Eisenglimmer lamellarer Struktur als Zusatzstoff für exotherme Speisehilfen.
- Formstoffmischung zur Herstellung von Kernen und Gußformen zum Gießen von Gußstücken aus Nichteisen-, Gußeisen und Stahlgußlegierungen, dadurch gekennzeichnet, daß die Formstoffmischung 4 bis 90 %-Masse plättchenförmigen Eisenglimmer lamellarer Struktur als Formstoffzusatz enthält.
- Formstoffmischung nach Anspruch 6, dadurch gekennzeichnet, daß die Formstoffmischung 4 bis 50 %-Masse plättchenförmigen Eisenglimmer lamellarer Struktur als Formstoffzusatz enthält.
- Formstoffmischung nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß die Formstoffmischung 4 bis 20 %-Masse plättchenförmigen Eisenglimmer lamellarer Struktur als Formstoffzusatz enthält.
- Mischung zur Herstellung von Formstoffüberzügen für Kerne und Gußformen, organisch oder anorganisch gebunden, zum Gießen von Gußstücken aus Nichteisen-, Gußeisen und Stahlgußlegierungen, dadurch gekennzeichnet, daß die Mischung plättchenförmigen Eisenglimmer lamellarer Struktur in einer Menge von 0,1-10 Masse-%, bezogen auf die Feststoffmasse des Überzuges, enthält.
- Exotherme Speisehilfe, dadurch gekennzeichnet, daß sie 0,1 bis 20 %-Masse plättchenförmigen Eisenglimmer lamellarer Struktur in binderfreier unverdichteter Form als Zusatzstoff enthält.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT99909984T ATE240174T1 (de) | 1998-03-20 | 1999-03-17 | Verwendung von eisenglimmer bei der herstellung von gussformen |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT17698 | 1998-03-20 | ||
| AT17698U AT2581U1 (de) | 1998-03-20 | 1998-03-20 | Verwendung von eisenglimmer bei der herstellung von gussformen |
| PCT/AT1999/000068 WO1999048634A1 (de) | 1998-03-20 | 1999-03-17 | Verwendung von eisenglimmer bei der herstellung von gussformen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1064112A1 EP1064112A1 (de) | 2001-01-03 |
| EP1064112B1 true EP1064112B1 (de) | 2003-05-14 |
Family
ID=3483579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99909984A Expired - Lifetime EP1064112B1 (de) | 1998-03-20 | 1999-03-17 | Verwendung von eisenglimmer bei der herstellung von gussformen |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1064112B1 (de) |
| AT (1) | AT2581U1 (de) |
| AU (1) | AU2910799A (de) |
| DE (1) | DE59905561D1 (de) |
| WO (1) | WO1999048634A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004042535B4 (de) * | 2004-09-02 | 2019-05-29 | Ask Chemicals Gmbh | Formstoffmischung zur Herstellung von Gießformen für die Metallverarbeitung, Verfahren und Verwendung |
| US20100295287A1 (en) | 2007-10-26 | 2010-11-25 | Basf Se | Security element |
| CN102015914B (zh) * | 2008-05-09 | 2013-09-25 | 巴斯夫欧洲公司 | 涂有金属氧化物/氢氧化物层和丙烯酸类共聚物的珠光颜料 |
| US20110139309A1 (en) * | 2009-12-16 | 2011-06-16 | Showman Ralph E | Foundry mixes contaiing carbonate salts and their uses |
| CN105750486A (zh) * | 2016-04-27 | 2016-07-13 | 霍邱县鑫瑞金属制品有限责任公司 | 一种镁合金铸造用含纳米活性炭的水基消失模涂料及其制备方法 |
| DE102018004234A1 (de) * | 2018-05-25 | 2019-11-28 | Ask Chemicals Gmbh | Schlichtezusammensetzung, Verfahren zur Beschichtung einer Gießform und Verwendung der Schlichtezusammensetzung zur Beschichtung einer Gießform |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54147127A (en) * | 1978-05-11 | 1979-11-17 | Sougou Imono Sentaa | Preventing defects in castings due to nitrogen contained in mold |
| US4430441A (en) * | 1982-01-18 | 1984-02-07 | Zhukovsky Sergei S | Cold setting sand for foundry moulds and cores |
| CN85107187A (zh) * | 1985-09-29 | 1987-07-22 | 北京钢铁学院 | 铸件发热冒口套 |
-
1998
- 1998-03-20 AT AT17698U patent/AT2581U1/de not_active IP Right Cessation
-
1999
- 1999-03-17 EP EP99909984A patent/EP1064112B1/de not_active Expired - Lifetime
- 1999-03-17 WO PCT/AT1999/000068 patent/WO1999048634A1/de not_active Ceased
- 1999-03-17 AU AU29107/99A patent/AU2910799A/en not_active Abandoned
- 1999-03-17 DE DE59905561T patent/DE59905561D1/de not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP1064112A1 (de) | 2001-01-03 |
| AT2581U1 (de) | 1999-01-25 |
| DE59905561D1 (de) | 2003-06-18 |
| AU2910799A (en) | 1999-10-18 |
| WO1999048634A1 (de) | 1999-09-30 |
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