EP0022808A1 - Verfahren zum verdichten von formsanden. - Google Patents
Verfahren zum verdichten von formsanden.Info
- Publication number
- EP0022808A1 EP0022808A1 EP80900151A EP80900151A EP0022808A1 EP 0022808 A1 EP0022808 A1 EP 0022808A1 EP 80900151 A EP80900151 A EP 80900151A EP 80900151 A EP80900151 A EP 80900151A EP 0022808 A1 EP0022808 A1 EP 0022808A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- molding sand
- molding
- compacting
- sand
- mold
- 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 13
- 239000004576 sand Substances 0.000 title abstract description 7
- 239000003110 molding sand Substances 0.000 claims description 17
- 238000000465 moulding Methods 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 4
- 239000002360 explosive Substances 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000005056 compaction Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/28—Compacting by different means acting simultaneously or successively, e.g. preliminary blowing and finally pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
Definitions
- the invention relates to a method for compacting molding sand for a casting mold, using a model plate with a model and an opposing press plate, the molding sand being poured into a mold space located between the model plate and the press plate, precompressed and mechanically recompressed.
- the disadvantage here is that the models are subject to a relatively large amount of wear due to the abrasive effect of the molding sand particles accelerated during the injection.
- a substantial energy requirement is necessary for the shooting, which has an adverse effect on the cost structure of the mold production affects.
- a mold box is placed on a model plate, enclosing a model and the associated filler frame, and a metered amount of molding sand is placed in the mold space formed by the model plate, the mold box or the filler frame
- Use of gravity, filled and then a lid that can be placed on the filling frame is connected to the filling frame or molding box.
- An explosive pressure shock is now exerted on the sand surface in the molding space formed between the molding sand surface, the filling frame or molding box and with the lid, and the molding sand mass is thus pre-compacted.
- the sand is mechanically compacted or compacted using the press plate.
- a fuel brought to the detonation-like or explosive combustion is advantageously used, which can also burn in a shock-induced manner.
- a depressurized, highly tensioned, vaporous or gaseous medium as the pressure surge.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
- Saccharide Compounds (AREA)
- Steroid Compounds (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT80900151T ATE1221T1 (de) | 1979-02-02 | 1980-01-24 | Verfahren zum verdichten von formsanden. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1037/79 | 1979-02-02 | ||
CH103779A CH637044A5 (de) | 1979-02-02 | 1979-02-02 | Verfahren zum verdichten von formsand in einer formvorrichtung. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0022808A1 true EP0022808A1 (de) | 1981-01-28 |
EP0022808B1 EP0022808B1 (de) | 1982-06-23 |
Family
ID=4200975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP80900151A Expired EP0022808B1 (de) | 1979-02-02 | 1980-08-15 | Verfahren zum verdichten von formsanden |
Country Status (14)
Country | Link |
---|---|
US (1) | US4415015A (de) |
EP (1) | EP0022808B1 (de) |
AU (1) | AU5487180A (de) |
CA (1) | CA1145112A (de) |
CH (1) | CH637044A5 (de) |
DD (1) | DD148734A5 (de) |
DE (1) | DE3060563D1 (de) |
DK (1) | DK412280A (de) |
ES (1) | ES488173A1 (de) |
IT (1) | IT1130875B (de) |
NO (1) | NO802904L (de) |
PL (1) | PL221739A1 (de) |
WO (1) | WO1980001544A1 (de) |
ZA (1) | ZA80311B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3025993A1 (de) * | 1980-07-09 | 1982-01-28 | Sintokogio, Ltd., Nagoya, Aichi | Formverfahren und vorrichtung zur druchfuehrung des verfahrens |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH650175A5 (de) * | 1981-01-23 | 1985-07-15 | Fischer Ag Georg | Verfahren und einrichtung zum dosieren von brennstoffen bei der herstellung von giessereisandformen. |
WO1982003348A1 (en) * | 1981-04-02 | 1982-10-14 | Koebel Alfons | Method and device for pneumatically compacting molding sand |
CH653579A5 (de) * | 1981-07-20 | 1986-01-15 | Fischer Ag Georg | Verfahren zum verdichten von koernigen formstoffen, insbesondere giessereiformstoffen, und vorrichtung zur durchfuehrung des verfahrens. |
DE3149172A1 (de) * | 1981-12-11 | 1983-06-30 | Georg Fischer AG, 8201 Schaffhausen | "verfahren zur herstellung von formkoerpern mittels gasdruck" |
CH672270A5 (de) * | 1986-12-17 | 1989-11-15 | Fischer Ag Georg | |
DE3900324A1 (de) * | 1989-01-07 | 1990-07-12 | Dorstener Maschf Ag | Verfahren und presse zum herstellen von formkernen aus formsand fuer die giessereitechnik |
CH682547A5 (de) * | 1990-04-20 | 1993-10-15 | Fischer Ag Georg | Verfahren und Vorrichtung zum Verdichten von körnigen Formstoffen. |
CH686412A5 (de) * | 1992-03-10 | 1996-03-29 | Fischer Georg Giessereianlagen | Verfahren zum Verdichten von Formsand fuer Giessformen. |
WO2001036129A1 (de) * | 1999-11-18 | 2001-05-25 | Hottinger Maschinenbau Gmbh | Verfahren zur herstellung von gussformen |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB728015A (en) * | 1952-02-25 | 1955-04-13 | Buhrer Erwin | Method for charging and jolting for the purpose of compacting granular materials in moulding flasks |
US3030678A (en) * | 1959-09-08 | 1962-04-24 | Sr William J Huston | Method of disintegrating a sand mold while in association with a flask and a casting |
US3170202A (en) * | 1962-08-22 | 1965-02-23 | Sr William J Huston | Foundry process |
US3807483A (en) * | 1971-01-08 | 1974-04-30 | E Buhler | Methods and apparatus for producing sand molds |
DE2128371A1 (de) * | 1971-06-08 | 1972-12-28 | Dynamit Nobel Ag, 5210 Troisdorf | Verfahren zum Verdichten von körnigen Materialien durch Explosionsdruck |
DE2242812B2 (de) * | 1972-08-31 | 1977-06-23 | Hüttenes-Albertus Chemische Werke GmbH, 4000 Düsseldorf | Verfahren zum haerten von saeurehaertbaren formstoffgemischen |
AT381877B (de) * | 1978-12-15 | 1986-12-10 | Fischer Ag Georg | Verfahren und vorrichtung zum verdichten von koernigen stoffen, insbesondere giessereiformstoff |
-
1979
- 1979-02-02 CH CH103779A patent/CH637044A5/de not_active IP Right Cessation
-
1980
- 1980-01-18 ZA ZA00800311A patent/ZA80311B/xx unknown
- 1980-01-22 IT IT19351/80A patent/IT1130875B/it active
- 1980-01-23 AU AU54871/80A patent/AU5487180A/en not_active Abandoned
- 1980-01-24 WO PCT/CH1980/000008 patent/WO1980001544A1/de not_active Application Discontinuation
- 1980-01-24 DE DE8080900151T patent/DE3060563D1/de not_active Expired
- 1980-01-24 US US06/207,959 patent/US4415015A/en not_active Expired - Lifetime
- 1980-01-30 DD DD80218740A patent/DD148734A5/de unknown
- 1980-02-01 ES ES488173A patent/ES488173A1/es not_active Expired
- 1980-02-01 PL PL22173980A patent/PL221739A1/xx unknown
- 1980-02-01 CA CA000344957A patent/CA1145112A/en not_active Expired
- 1980-08-15 EP EP80900151A patent/EP0022808B1/de not_active Expired
- 1980-09-30 DK DK412280A patent/DK412280A/da not_active Application Discontinuation
- 1980-10-01 NO NO802904A patent/NO802904L/no unknown
Non-Patent Citations (1)
Title |
---|
See references of WO8001544A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3025993A1 (de) * | 1980-07-09 | 1982-01-28 | Sintokogio, Ltd., Nagoya, Aichi | Formverfahren und vorrichtung zur druchfuehrung des verfahrens |
Also Published As
Publication number | Publication date |
---|---|
IT8019351A0 (it) | 1980-01-22 |
CA1145112A (en) | 1983-04-26 |
EP0022808B1 (de) | 1982-06-23 |
ES488173A1 (es) | 1980-10-01 |
WO1980001544A1 (en) | 1980-08-07 |
US4415015A (en) | 1983-11-15 |
DD148734A5 (de) | 1981-06-10 |
DE3060563D1 (en) | 1982-08-12 |
DK412280A (da) | 1980-09-30 |
AU5487180A (en) | 1980-08-07 |
PL221739A1 (de) | 1980-10-20 |
ZA80311B (en) | 1981-01-28 |
NO802904L (no) | 1980-10-01 |
IT1130875B (it) | 1986-06-18 |
CH637044A5 (de) | 1983-07-15 |
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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 |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 19800910 |
|
AK | Designated contracting states |
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STAA | Information on the status of an ep patent application or granted ep patent |
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GBPR | Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state | ||
27W | Patent revoked |
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