EP0179100A1 - Verfahren zur erzeugung von gusstücken und modell zur durchführung des verfahrens. - Google Patents
Verfahren zur erzeugung von gusstücken und modell zur durchführung des verfahrens.Info
- Publication number
- EP0179100A1 EP0179100A1 EP85901972A EP85901972A EP0179100A1 EP 0179100 A1 EP0179100 A1 EP 0179100A1 EP 85901972 A EP85901972 A EP 85901972A EP 85901972 A EP85901972 A EP 85901972A EP 0179100 A1 EP0179100 A1 EP 0179100A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- model
- parts
- gasifiable
- reusable
- model parts
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 18
- 238000000465 moulding Methods 0.000 claims abstract description 15
- 238000005266 casting Methods 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000012778 molding material Substances 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
- B22C7/023—Patterns made from expanded plastic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
- B22C9/046—Use of patterns which are eliminated by the liquid metal in the mould
Definitions
- the invention relates to a method for producing castings according to the preamble of claim 1 and a model for performing this method.
- a method is proposed with which castings with contours that do not conform to the shape can be produced without problems and without the disadvantages mentioned above.
- the process according to the invention achieves its particular advantages in connection with the known vacuum molding technology.
- This molding process is suitable for the production of castings with high dimensional accuracy even with larger dimensions, since the lack of binders means that the molding material can easily be shaken to form the densest core packing.
- the high compression does not allow the use of larger full-form models. The instability of this model material otherwise leads to dimensionally inaccurate castings.
- FIG. 1 a cross section through the model of a segment
- FIG. 2 a cross section through a mold with a molded model
- Fig. 3 A cross section through a mold half .when the model is removed and Fig. 4: A cross section through the finished mold in front of the
- the tubbing has ribs made of L-shaped and T-shaped ribs.
- the correct contours of the vertical ribs are designed as reusable model parts 1.
- the contours of the horizontal rib flanges that do not conform to the shape form gasifiable model parts 2, the gasifiable model parts 2 are on the other
- Model parts 1 stored so that they can be pulled out of the mold vertically after molding in the usual manner.
- the tubbing shown represents a preferred application.
- any other type and shape of the model parts 1, 2 is also conceivable.
- the gasifiable model parts 2 can be mounted laterally on the reusable model parts 1 or surround them in partial areas.
- the model according to FIG. 1 is exnformed into a mold 3 according to FIG. 2. To use the vacuum molding process, it is covered with a film 4 for this purpose.
- a vacuum source 5 is then connected to the mold 3. According to FIG. 3, only the reusable model parts with the correct contours are pulled out of the mold.
- the gasifiable model parts 2 remain in the form 3 7 which is shown in its final state in FIG. 4.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT85901972T ATE31643T1 (de) | 1984-04-21 | 1985-04-17 | Verfahren zur erzeugung von gusstuecken und modell zur durchfuehrung des verfahrens. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3415232 | 1984-04-21 | ||
| DE3415232A DE3415232C2 (de) | 1984-04-21 | 1984-04-21 | Verfahren zur Erzeugung von Gußstücken und Modell zur Durchführung des Verfahrens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0179100A1 true EP0179100A1 (de) | 1986-04-30 |
| EP0179100B1 EP0179100B1 (de) | 1988-01-07 |
Family
ID=6234253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP85901972A Expired EP0179100B1 (de) | 1984-04-21 | 1985-04-17 | Verfahren zur erzeugung von gusstücken und modell zur durchführung des verfahrens |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4694879A (de) |
| EP (1) | EP0179100B1 (de) |
| JP (1) | JPS61501901A (de) |
| DE (2) | DE3415232C2 (de) |
| WO (1) | WO1985004826A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2087763C (en) * | 1992-02-11 | 2002-07-02 | Jimmy Cochimin | Stator frame for dynamoelectric machine and method for making same |
| EP0730922A1 (de) * | 1995-03-09 | 1996-09-11 | Passavant-Werke Ag | Verfahren zum Giessen von später mit Beton verbundenen Gussteilen |
| US7082984B2 (en) * | 2004-07-30 | 2006-08-01 | Dana Corporation | Article casting method |
| US7900684B2 (en) * | 2007-07-16 | 2011-03-08 | Waukesha Foundry, Inc. | In-place cope molding for production of cast metal components |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3063113A (en) * | 1959-12-10 | 1962-11-13 | Howe Sound Co | Disposable pattern with lower melting external coating |
| DE1917893U (de) * | 1965-02-13 | 1965-06-16 | Gruenzweig & Hartmann | Verlorenes losteil, insbesondere kugelfoermiges speiser-modell aus geschaumtem kunststoff. |
| US3518586A (en) * | 1968-06-17 | 1970-06-30 | Ford Motor Co | Electronic tuning device utilizing binary counters and memory system |
| US3552480A (en) * | 1968-07-12 | 1971-01-05 | Caterpillar Tractor Co | Pattern for making a sand mold with a back draft |
| US3624758A (en) * | 1968-07-12 | 1971-11-30 | Caterpillar Tractor Co | Method of making a sand mold with a back draft |
| US3842899A (en) * | 1971-04-13 | 1974-10-22 | Gruenzweig & Hartmann | Apparatus for carrying out full-form casting process |
| US3842399A (en) * | 1974-01-02 | 1974-10-15 | Bell Telephone Labor Inc | Repetitive byte recognition circuit |
| JPS5222573B2 (de) * | 1974-08-14 | 1977-06-18 | ||
| DE2507509A1 (de) * | 1975-02-21 | 1976-08-26 | Buderus Eisenwerk | Modell aus einem bei hitzeeinwirkung vergasenden werkstoff und verfahren zu seiner herstellung |
| DE2940171C2 (de) * | 1979-10-04 | 1984-04-05 | Goetze Ag, 5093 Burscheid | Modell für die Herstellung von Gießformen |
-
1984
- 1984-04-21 DE DE3415232A patent/DE3415232C2/de not_active Expired
-
1985
- 1985-04-17 EP EP85901972A patent/EP0179100B1/de not_active Expired
- 1985-04-17 JP JP60501834A patent/JPS61501901A/ja active Pending
- 1985-04-17 DE DE8585901972T patent/DE3561289D1/de not_active Expired
- 1985-04-17 WO PCT/DE1985/000121 patent/WO1985004826A1/de not_active Ceased
- 1985-04-17 US US06/787,801 patent/US4694879A/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO8504826A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61501901A (ja) | 1986-09-04 |
| DE3415232C2 (de) | 1986-04-10 |
| DE3415232A1 (de) | 1985-10-31 |
| US4694879A (en) | 1987-09-22 |
| EP0179100B1 (de) | 1988-01-07 |
| WO1985004826A1 (fr) | 1985-11-07 |
| DE3561289D1 (en) | 1988-02-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| 17P | Request for examination filed |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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