SE466051B - CASTING FOR THE CASTING OF A HARDWARE MATERIAL - Google Patents
CASTING FOR THE CASTING OF A HARDWARE MATERIALInfo
- Publication number
- SE466051B SE466051B SE9000090A SE9000090A SE466051B SE 466051 B SE466051 B SE 466051B SE 9000090 A SE9000090 A SE 9000090A SE 9000090 A SE9000090 A SE 9000090A SE 466051 B SE466051 B SE 466051B
- Authority
- SE
- Sweden
- Prior art keywords
- mold
- casting
- parts
- insert
- frame
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
- B28B7/0011—Mould seals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
- B28B7/346—Manufacture of moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/36—Linings or coatings, e.g. removable, absorbent linings, permanent anti-stick coatings; Linings becoming a non-permanent layer of the moulded article
- B28B7/364—Linings or coatings, e.g. removable, absorbent linings, permanent anti-stick coatings; Linings becoming a non-permanent layer of the moulded article of plastic material or rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
- B29C33/68—Release sheets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Joining Of Building Structures In Genera (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Description
“4se 051 2 Ett ändamål med föreliggande uppfinning är därför att åstadkom- ma en enkel och billig gjutform som inte uppvisar de ovan beskrivna nackdelarna. An object of the present invention is therefore to provide a simple and inexpensive mold which does not have the disadvantages described above.
Detta ändamål uppnås enligt.uppfinningen, genom att insidan av varje formdel bildar stödyta för en till forminsidan anslutande insats av plast. Genom att insatsen är en"lös del förenklas separeringen av formhalvorna på ett överraskande sätt.This object is achieved according to the invention, in that the inside of each mold part forms a support surface for an insert of plastic connecting to the mold side. Because the insert is a "loose part", the separation of the mold halves is surprisingly simplified.
Enligt en fördelaktig utföringsform av uppfinningen utgörs insatsen av ett varmformat plastark. Dessa insatser kan massproduceras till mycket låga kostnader.According to an advantageous embodiment of the invention, the insert consists of a hot-formed plastic sheet. These inputs can be mass-produced at very low costs.
Lämpligen är formdelarna utförda i ett härdbart material, t.ex. betong. Dessa formdelar kan framställas till mycket låga kostnader.Suitably the mold parts are made of a curable material, e.g. concrete. These molded parts can be manufactured at very low cost.
För att underlätta hanteringen av formdelarna kan dessa vara försedda med en förstyvande stomme, t.ex. tillverkad av balkprofiler av metall.To facilitate the handling of the mold parts, these can be provided with a stiffening frame, e.g. made of beam profiles of metal.
Lämpligen är formdelarna och de i dessa placerbara insatserna försedda med en profilerad tätningsvulst, vilken bildar tätning i skarven mellan formdelarna.Suitably the mold parts and the inserts which can be placed in them are provided with a profiled sealing bead, which forms a seal in the joint between the mold parts.
Ett utföringsexempel av uppfinningen kommer nu att beskrivas mer detaljerat med hänvisning till den bifogade ritningen, på vilken Fig. 1 är en perspektivvy visande två gjutformshalvor i separerat tillstånd, Fig. 2 visar på motsvarande sätt en lös insats, och Fig. 3 är ett snitt längs linjen III-III genom de båda separerade formhalvorna.An embodiment of the invention will now be described in more detail with reference to the accompanying drawing, in which Fig. 1 is a perspective view showing two mold halves in separated condition, Fig. 2 correspondingly shows a loose insert, and Fig. 3 is a section along the line III-III through the two separated mold halves.
På ritningen visas två formhalvor 10 och ll, vilka vardera omfattar'en av sammansvetsade L-balkar bestående stålram 12 och en inom ramen placerad formlåda 13. 466 O51i 3 Pâ den ena ramen 12 är ett antal bultar 14 fastsvetsade, vilka är inrättade att upptas i ett motsvarande antal hylsor 15, vilka är fastsvetsade på den andra ramen 12. När de båda formhalvorna 10, 11 är sammanförda, kan icke visade muttrar äntras pá bultändarna och dras åt, så att formhalvorna hàlls samman med en viss förspänning.The drawing shows two mold halves 10 and 11, each of which comprises a steel frame 12 consisting of welded-together L-beams and a mold box 13 placed within the frame. 466 in a corresponding number of sleeves 15, which are welded to the second frame 12. When the two mold halves 10, 11 are joined together, nuts (not shown) can be entered on the bolt ends and tightened, so that the mold halves are held together with a certain prestress.
Formlàdorna 13 är lämpligen tillverkade av betong, som gjuts mellan stàlramens balkar och genom vidhäftning blir fast förbundna med ramen. Förbindningen kan göras helt stabil genom lämplig utformning av ramen, t.ex. med tvärgàende stag.The mold boxes 13 are suitably made of concrete, which is cast between the beams of the steel frame and is firmly connected to the frame by adhesion. The connection can be made completely stable by suitable design of the frame, e.g. with transverse struts.
Forminsidan gjuts på så sätt, att den blir anpassad till formen på det föremål som skall gjutas. Härvid tar man hänsyn till att en insats 16 (se Fig. 2) skall placeras i vardera formhalvan.The mold side is molded in such a way that it is adapted to the shape of the object to be molded. In this case, it is taken into account that an insert 16 (see Fig. 2) must be placed in each mold half.
Insatsen 16 är framställd av ett tunt plastark, vilket lämpli- gen formas genom varmformning, så att dess insida exakt mot- svarar formen på det föremål som skall gjutas i formen.The insert 16 is made of a thin plastic sheet, which is suitably formed by hot forming, so that its inside exactly corresponds to the shape of the object to be cast in the mold.
Varmformningen av plastarket, som kan ha en tjocklek av 0,5- 1 mm, sker på konventionellt sätt genom uppvärmning till en för plastmaterialet lämplig temperatur och efterföljande formning med hjälp av olika lufttryck på arkets båda sidor, så att detta dras mot en formyta som motsvarar det föremål som skall gjutas.The hot forming of the plastic sheet, which may have a thickness of 0.5-1 mm, takes place in a conventional manner by heating to a temperature suitable for the plastic material and subsequent forming by means of different air pressures on both sides of the sheet, so that it is drawn towards a forming surface corresponds to the object to be cast.
När arket sedan kyls ned till normal rumstemperatur bibehåller det den givna formen.When the sheet is then cooled down to normal room temperature, it retains the given shape.
Fig. 3 visar hur de båda formhalvorna 10, 11 är försedda med var sin insats 16, som är försedd med försänkningar och 16a, vilka stöds av motsvarande försänkningar och upphöjningar l3a i formládorna 13.Fig. 3 shows how the two mold halves 10, 11 are provided with their respective inserts 16, which are provided with depressions and 16a, which are supported by corresponding depressions and elevations 13a in the mold boxes 13.
För att förhindra att gjutmassa tränger ut mellan de båda formhalvorna 10, 11 har formlàdan och insatsen 16 i den ena formhalvan 11 försetts med en utskjutande V-formad vulst 17, medan den andra formhalvan 10 har försetts med ett motsvarande format spår 18. Dessa tätningsorgan är på lämpliga ställen 466 051 4 avbrutna av öppningar 19, vilka möjliggör tillförsel av gjutmassa och evakuering av luft.In order to prevent molding compound from penetrating between the two mold halves 10, 11, the mold box and the insert 16 in one mold half 11 are provided with a projecting V-shaped bead 17, while the other mold half 10 is provided with a corresponding shaped groove 18. These sealing means are interrupted in suitable places 466 051 4 by openings 19, which enable the supply of casting compound and evacuation of air.
Efter att gjutmassan har härdat tillräckligt för att formhalv- orna skall kunna separeras, är det enkelt att separera de båda formhalvorna, eftersonxplastinsatsen 16 ej har någon benägenhet att bindas vare sig mot forminsidan eller det gjutna föremålet.After the molding compound has hardened sufficiently for the mold halves to be separated, it is easy to separate the two mold halves, since the plastic insert 16 has no tendency to bond to either the mold side or the molded article.
Det har visat sig att kassationen pá grund av problem vid formseparering i stort sett helt bortfaller genom den ovan beskrivna anordningen. Det.är:möjligt att återanvända insatser- na ett flertal gånger, vilket kan vara önskvärt ur ekologisk synvinkel, men eftersom kostnaden per forminsats kan hållas väldigt låg, kan man ur ekonomisk synvinkel lika gärna byta insatser ofta eller till och med för varje gjutning.It has been found that the rejection due to shape separation problems is largely eliminated by the device described above. It is possible to reuse the inserts several times, which may be desirable from an ecological point of view, but since the cost per mold insert can be kept very low, from an economic point of view you can just as easily change inserts often or even for each casting.
Uppfinningen är ej begränsad till det ovan beskrivna utförings- exemplet, utan flera varianter är tänkbara inom ramen för efterföljande krav. Exempelvis kan anordningen enligt upp- finningen även tillämpas vid gjutformar där fler formhalvor än tvâ används. Stàlramen 12 är inte nödvändig för uppfinningen, men när sådan används kan den givetvis skilja sig väsentligt från det visade utföringsexemplet. .rakThe invention is not limited to the embodiment described above, but several variants are conceivable within the scope of the following claims. For example, the device according to the invention can also be applied to molds where more mold halves than two are used. The steel frame 12 is not necessary for the invention, but when used it can of course differ significantly from the embodiment shown. .straight
Claims (6)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9000090A SE466051B (en) | 1990-01-11 | 1990-01-11 | CASTING FOR THE CASTING OF A HARDWARE MATERIAL |
| PCT/SE1990/000739 WO1991010546A1 (en) | 1990-01-11 | 1990-11-15 | A mould for moulding of a thermosetting substance |
| AU69524/91A AU6952491A (en) | 1990-01-11 | 1990-11-15 | A mould for moulding of a thermosetting substance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9000090A SE466051B (en) | 1990-01-11 | 1990-01-11 | CASTING FOR THE CASTING OF A HARDWARE MATERIAL |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE9000090D0 SE9000090D0 (en) | 1990-01-11 |
| SE9000090L SE9000090L (en) | 1991-07-12 |
| SE466051B true SE466051B (en) | 1991-12-09 |
Family
ID=20378215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE9000090A SE466051B (en) | 1990-01-11 | 1990-01-11 | CASTING FOR THE CASTING OF A HARDWARE MATERIAL |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU6952491A (en) |
| SE (1) | SE466051B (en) |
| WO (1) | WO1991010546A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9102954D0 (en) * | 1991-02-12 | 1991-03-27 | British Ceramic Res Ltd | Mould forming |
| DE4130560A1 (en) * | 1991-09-13 | 1993-03-18 | Rieter Werke Haendle | PRESS FORM FOR A ROOF TILE PRESS |
| MX9206154A (en) * | 1992-06-16 | 1994-01-31 | Jack T Hupp | APPARATUS TO FORM CONCRETE ROADS. |
| NL9400119A (en) * | 1994-01-27 | 1995-09-01 | 3P Licensing Bv | Method for encapsulating an electronic component with a hardening plastic, electronic components with plastic enclosure obtained by means of this method and mold for carrying out the method. |
| RU2087308C1 (en) * | 1995-04-28 | 1997-08-20 | Владимир Григорьевич Ященко | Method of manufacture of interior-facing gypsum products, mould for manufacture of interior-facing products |
| EP4232249A1 (en) * | 2020-10-20 | 2023-08-30 | Onsite ICF | Construction apparatuses and methods of use thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE145276C1 (en) * | ||||
| BE555068A (en) * | 1956-02-18 | |||
| DE3410751C2 (en) * | 1984-03-23 | 1996-10-02 | Bauunternehmung Und Betonwerke | Process for producing a matrix for the production of facade elements with a structured visible surface made of concrete |
| DE8717632U1 (en) * | 1987-04-13 | 1989-08-31 | Hötzel-Beton GmbH, 76344 Eggenstein-Leopoldshafen | Device for producing an artificial stone |
-
1990
- 1990-01-11 SE SE9000090A patent/SE466051B/en not_active IP Right Cessation
- 1990-11-15 WO PCT/SE1990/000739 patent/WO1991010546A1/en unknown
- 1990-11-15 AU AU69524/91A patent/AU6952491A/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| WO1991010546A1 (en) | 1991-07-25 |
| SE9000090L (en) | 1991-07-12 |
| SE9000090D0 (en) | 1990-01-11 |
| AU6952491A (en) | 1991-08-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAL | Patent in force |
Ref document number: 9000090-2 Format of ref document f/p: F |
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| NUG | Patent has lapsed |