CS238430B1 - Material fitted for lining during casting especially of steel castings - Google Patents
Material fitted for lining during casting especially of steel castings Download PDFInfo
- Publication number
- CS238430B1 CS238430B1 CS838531A CS853183A CS238430B1 CS 238430 B1 CS238430 B1 CS 238430B1 CS 838531 A CS838531 A CS 838531A CS 853183 A CS853183 A CS 853183A CS 238430 B1 CS238430 B1 CS 238430B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- steel castings
- casting
- during casting
- material fitted
- lining during
- Prior art date
Links
- 238000005266 casting Methods 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 5
- 239000010959 steel Substances 0.000 title claims abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 5
- 239000010431 corundum Substances 0.000 claims abstract description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 4
- 239000011573 trace mineral Substances 0.000 claims abstract description 4
- 235000013619 trace mineral Nutrition 0.000 claims abstract description 4
- 239000011241 protective layer Substances 0.000 claims abstract description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 238000005253 cladding Methods 0.000 description 5
- 238000007711 solidification Methods 0.000 description 5
- 230000008023 solidification Effects 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Mold Materials And Core Materials (AREA)
Abstract
Vynález sa týká výroby ocelových odliátkov a rieši problém zvýšenia ich povrchové) akostl. Podstata vynálezu spočívá v tom, že materiál je tvořený základnou zložkou pozostávajúcou z 0,5 až 1,5 hmot. % kysličníka železitého, 30 až 59 hmot. % kysličníka křemičitého, 38 až 65 hmot. % kysličníka hlinitého a zvyšok do 100 hmot. % sú stopové prvky. Jej objemová hmotnost je od 0,43 do 1,1 g/cm3. Povrch základné] zložky je opatřený žiaruvzdornou ochrannou vrstvou o hrúbke do 10 mm, výhodné korundovou. Vynález je možné využit v zlievárenských prevádzkach.The invention relates to the production of steel castings and solve the problem of increasing their surface) akostl. The essence of the invention is that the material is composed of a basic component consisting of from 0.5 to 1.5 wt. % oxide % ferric, 30 to 59 wt. % silicon dioxide, 38 to 65 wt. % alumina and the remainder to 100 wt. % are trace elements. Its bulk density is from 0.43 to 1.1 g / cm 3. The surface of the base component is provided a refractory protective layer o thickness up to 10 mm, preferably corundum. The invention can be used in foundry plants operations.
Description
Vynález sa týká materiálu vhodného na obklady při odlievaní najmá ocelových odlatkov.BACKGROUND OF THE INVENTION The present invention relates to a material suitable for cladding, in particular cast steel castings.
Výroba ocelových odliatkov je závislá na dokonalom zvládnutí procesu ich tuhnutia. K tomuto účelu sa výužívajú tiež zlievárenské přesahy. Tieto predlužujú dobu tuhnutia odlievacieho .miesta .tak, aby bol zabezpečený potřebný uhol kryštalizácie dendritu bez osovej porezity odliatku tým, že končiace tuhnutie prebieha v náliatku- Odstraňovanie týchto prídavkov prebieha váčšinou upalováním kyslíkoacetylénovým horákom alebo trieskovým opracováním.The production of steel castings depends on perfect mastery of the solidification process. Foundry overlaps are also used for this purpose. These extend the solidification time of the casting site so as to provide the necessary angle of crystallization of the dendrite without axial porosity of the casting by ending the solidification in the spill.
Nutnosť vytvárania technologických prídavkov sa odstránila obkladmi kritických miest exotermickými obkladmi. Nevýhodou tohto spůsobu je však znížená čistota povrchu odliatku, ako aj zhoršenie kvality povrchovej vrstvy odliatku v důsledku přechodu niektorých prvkov z obkladu do nej.The necessity to create technological additions has been eliminated by cladding of critical sites with exothermic cladding. The disadvantage of this method, however, is the reduced surface cleanliness of the casting as well as the deterioration of the quality of the casting surface layer due to the transition of some elements from the cladding to it.
Uvedené nedostatky odstraňuje materiál vhodný najma na obklady pri ndlievaní ocelových odliatkov, ktorého podstata spočívá v tom, že je tvořený základnou zložkou pozostávajúcou z 0,5 až 1,5 hmot. % kysličníka železitého, 30 až 59 hmot. % kysličníka křemičitého, 38 až 65 hmot. kysličníka hlinitého a zvyšok do 100 hmot. % sú stopové prvky, pričom jej objemová hmotnost je 0,43 až 1,1 g/cm3. Povrch základnej zložky je opatřený ochrannou žiaruvzdornou vrstvou, výhodné korundovou o hrúbke do 10 mm.These drawbacks are eliminated by a material suitable, in particular, for cladding in the casting of steel castings, the essence of which is constituted by a base component consisting of 0.5 to 1.5% by weight. % iron oxide, 30 to 59 wt. % silica, 38 to 65 wt. alumina and the remainder up to 100 wt. % are trace elements with a bulk density of 0.43 to 1.1 g / cm 3 . The surface of the base component is provided with a protective refractory layer, preferably corundum with a thickness of up to 10 mm.
Materiál, ktorý je predmetom ochrany, zabezpečuje čistotu povrchu a predpísanú drsnost odliatku podta etanolu drsnosti. Povrchová vrstva má takú štruktúru, ako má celý odliatok.The material to be protected ensures the cleanliness of the surface and the prescribed roughness of the casting under ethanol roughness. The surface layer has the same structure as the entire casting.
Základná zložka materiálu podta vynálezu zabezpečuje, aby konečné stuhnutie celej sústavy prebehlo v náliatku.The basic material component according to the invention ensures that the final solidification of the entire assembly takes place in the spout.
Jej zloženie závisí od podmienok odlievania. Ochranná žiaruvzdorná vrstva z korundu alebo zirkonu, připadne iného vhodného materiálu slúži k zaisteniu dostatočnej únosnosti izolácie pri styku s tečúcim kovom a zamedzuje preniknutiu kovu do základnej zložky. Jej hrúbka je závislá na hrúbke steny odliatku a na metalostatickom tlaku. Hrúbka izolačného materiálu je závislá od hrůbky steny odliatku a od doby predlženiaIts composition depends on the casting conditions. The protective refractory layer of corundum or zirconium or other suitable material serves to ensure sufficient resistance of the insulation in contact with the flowing metal and prevents the penetration of the metal into the base component. Its thickness depends on the wall thickness of the casting and the metallostatic pressure. The thickness of the insulating material depends on the wall thickness of the casting and on the elongation time.
Vynález objasňuje konkrétny příklad prevedenia.The invention illustrates a particular embodiment.
P r í.k 1 a dEXAMPLE 1 a d
Zloženie základného materiálu:Composition of basic material:
1,2 hmot. % kysličník železitý, 58 hmot. °/o kysličník křemičitý, 38 hmot- % kysličník hlinitý, 1 hmot % kysličník titaničitý a zbytok do 100 hmot. % sú stopové prvky.1.2 wt. % ferric oxide, 58 wt. % Silica, 38 wt.% Alumina, 1 wt.% Titanium dioxide and the remainder up to 100 wt. % are trace elements.
Fyzikálno-mechanické vlastnosti tohto materiálu sú následovně:The physico-mechanical properties of this material are as follows:
max. teplota použitiá 1430 °C, minimálna žiaruvzdornošť 33, objemová hmotnost 500 kg/m3, pevnost v tlaku min. 0,8 MPa, koeficient tepelnej vodivosti 1000 °C 0,36 Wm_1 K-i.max. temperature used 1430 ° C, minimum heat resistance 33, density 500 kg / m 3 , compressive strength min. 0.8 MPa, thermal conductivity coefficient 1000 ° C 0.36 Wm -1 Ki.
Zloženie žiaruvzdornej ochrannej vrstvy:Composition of the refractory protective layer:
hmot. % latexová farba, 25 hmot. % etylnatý lieh, 45 hmot % prachový korund a 15 hmot. % lupkový úlet.wt. % latex paint, 25 wt. % ethyl alcohol, 45 wt.% corundum and 15 wt. flak drift.
Fyzikálno-mechanické vlastnosti tohto materiálu sú:The physico-mechanical properties of this material are:
objemová hmotnost 1730 kg/m3, oteruvzdornosť minimálna, roztieravosť stupeň 1, zasychavosť max. 2 hod., přilnavost dobrá.density 1730 kg / m 3 , minimum abrasion resistance, spreading grade 1, drying capacity max. 2 hours, good adhesion.
Vynález je možné využiť v zlievárenských prevádzkach.The invention can be used in foundry plants.
Výhodou materiálu podfa vynálezu je, že základní.vrstva vytvára podmienky pre optimálnu adhéziu ochranej žiaruvzdornej vrstvy. Toto spojenie zabezpečuje zachovanie vysokej stability povrchu obkladového materiálu i pri styku s tekutým kovom Táto vlastnost má význam v tom, že pri použití materiálu podta vynálezu na obklady pri odlévaní sa zabezpečuje čistota povrchu podta etanolu drsností. Okrem toho tepelnoizolačné vlastnosti základnej zložky materiálu umožňujú, aby stuhnutie celej sústavy sa ukončilo v náliatku, čím sa dosiahne zaručená kvalita vnútornej štruktúry.It is an advantage of the material according to the invention that the base layer creates conditions for optimal adhesion of the protective refractory layer. This property ensures that the surface of the facing material is maintained even when it is in contact with liquid metal. In addition, the heat-insulating properties of the base material allow the solidification of the entire assembly to terminate in a pouring manner, thereby achieving a guaranteed quality of the internal structure.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS838531A CS238430B1 (en) | 1983-11-17 | 1983-11-17 | Material fitted for lining during casting especially of steel castings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS838531A CS238430B1 (en) | 1983-11-17 | 1983-11-17 | Material fitted for lining during casting especially of steel castings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS853183A1 CS853183A1 (en) | 1985-04-16 |
| CS238430B1 true CS238430B1 (en) | 1985-11-13 |
Family
ID=5435952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS838531A CS238430B1 (en) | 1983-11-17 | 1983-11-17 | Material fitted for lining during casting especially of steel castings |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS238430B1 (en) |
-
1983
- 1983-11-17 CS CS838531A patent/CS238430B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS853183A1 (en) | 1985-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3557430B2 (en) | Metal casting mold, metal casting method, and molded article of refractory composition used therefor | |
| EP0598479B1 (en) | Metallurgical pouring vessels | |
| US3917110A (en) | Stopper rod having fibrous protective sleeve | |
| CZ284147B6 (en) | Dressing for performing mould coatings | |
| US3962492A (en) | Method of protecting refractory lining in containers for molten metal | |
| US3498360A (en) | Method of casting in a mold which is coated during casting | |
| US2165945A (en) | Casting metals | |
| US4149705A (en) | Foundry ladle and method of making the same | |
| ES8506554A1 (en) | Refractory concrete composition and metallurgical application thereof. | |
| CA2295083C (en) | Refractory composition for the prevention of alumina clogging | |
| CS238430B1 (en) | Material fitted for lining during casting especially of steel castings | |
| US3848655A (en) | Method of making a steel ingot | |
| US4600560A (en) | Process for thermal insulation of the surface of a molten mass of steel and thermally insulating board used as a cover plate for carrying out said process | |
| US4630667A (en) | Coated refractory shapes useful in bottom pouring of ingots in ingot molds | |
| CN108838346A (en) | A kind of spheroidal graphite cast-iron iron bath coverture | |
| JP3016124B2 (en) | Molten container and aluminum holding furnace | |
| JP3250763B2 (en) | Nozzle for casting containing carbon | |
| JP2000320980A (en) | Insulated fire wall structure | |
| US3654987A (en) | Gasifiable casting care | |
| US20040035327A1 (en) | Insulation material and method for coating nozzles, pouring spouts, pouring-stream protective tubes and similar tools for casting or converting melts | |
| US4779846A (en) | Method of improving permeability of metallurgical vessels, and material for implementing the same | |
| JP6358736B2 (en) | Dry coat material | |
| JP2799451B2 (en) | Stopper for metal pouring gate | |
| KR100804969B1 (en) | Basic amorphous refractory composition with autofluidity | |
| JPS6028660Y2 (en) | Structure of blast furnace taphole |