DE58900437D1 - METHOD FOR CURING MOLDED BODIES, ESPECIALLY MOLDED MOLDING OR CORES MADE OF MOLDED SAND. - Google Patents
METHOD FOR CURING MOLDED BODIES, ESPECIALLY MOLDED MOLDING OR CORES MADE OF MOLDED SAND.Info
- Publication number
- DE58900437D1 DE58900437D1 DE8989200139T DE58900437T DE58900437D1 DE 58900437 D1 DE58900437 D1 DE 58900437D1 DE 8989200139 T DE8989200139 T DE 8989200139T DE 58900437 T DE58900437 T DE 58900437T DE 58900437 D1 DE58900437 D1 DE 58900437D1
- Authority
- DE
- Germany
- Prior art keywords
- molded
- passed
- mould
- sorption
- catalyst
- 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 - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/12—Treating moulds or cores, e.g. drying, hardening
- B22C9/123—Gas-hardening
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treating Waste Gases (AREA)
- Mold Materials And Core Materials (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
For hardening shaped articles, especially casting moulds and cores made of moulding sand, the method employed is one in which a catalyst/air mixture is passed through a moulding compound (1), to which a curing binder has been added, and the gas mixture escaping from the mould is passed through an adsorption apparatus (16, 17) which separates the catalyst from the air stream. For recovery and reuse of the catalyst, the gas mixture escaping from the mould is passed in a cyclical sequence through two sorption columns (16, 17) arranged in series, until the sorbent of the first sorption column (16) is saturated, and the fresh air fed to the mould simultaneously flows through a sorption column (13) saturated in a previous cycle. For this purpose, the sorption columns are interchanged, with the result that, in a following cycle, the gas mixture escaping from the mould is passed first of all through the second sorption column connected downstream in the preceding cycle, and then through a sorption column desorbed in a preceding cycle. <IMAGE>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP89200139A EP0379741B1 (en) | 1989-01-24 | 1989-01-24 | Method for hardening shaped articles, especially casting moulds and cores made of moulding sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE58900437D1 true DE58900437D1 (en) | 1991-12-12 |
Family
ID=8202303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE8989200139T Expired - Fee Related DE58900437D1 (en) | 1989-01-24 | 1989-01-24 | METHOD FOR CURING MOLDED BODIES, ESPECIALLY MOLDED MOLDING OR CORES MADE OF MOLDED SAND. |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0379741B1 (en) |
| AT (1) | ATE69185T1 (en) |
| DE (1) | DE58900437D1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4225436C1 (en) * | 1992-07-31 | 1993-11-25 | Daimler Benz Ag | Catalytic hardening of sand mould elements - with two-stage sepn. and removal of amine(s) and solvents from exhaust air |
| DE19549422C2 (en) * | 1994-02-04 | 2001-05-10 | Sommer Tech Entwicklungen Gmbh | Mfg. cores for sand casting |
| DE19503832C2 (en) * | 1994-02-04 | 1999-01-28 | Sommer Tech Entwicklungen Gmbh | Method and device for producing sand cores for metal casting |
| DE19927107A1 (en) * | 1999-06-14 | 2000-12-21 | Fischer Georg Gmbh & Co Kg | Device to reduce odorous emissions from a casting installation has a container for bio catalysts and/or enzymes and active region in which the bio catalysts and/or the enzymes interact with the substances causing the odorous emissions |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3116130A (en) * | 1959-02-27 | 1963-12-31 | Phillips Petroleum Co | Separation of gases and liquids by sorption |
| US3919162A (en) * | 1974-03-15 | 1975-11-11 | Airco Inc | Catalyst supply and reclamation in cold box core making processes |
| DE2621153A1 (en) * | 1976-05-13 | 1977-11-24 | Daimler Benz Ag | Hardening sand cores by cold box process - where catalyst is reclaimed from carrier gas after use |
| ATE22825T1 (en) * | 1983-06-16 | 1986-11-15 | Steffens Harald Giessereimasch | MOLDING MACHINE FOR MAKING MOLDS OR CORE MOLDS FROM MOLDING SAND. |
-
1989
- 1989-01-24 EP EP89200139A patent/EP0379741B1/en not_active Expired - Lifetime
- 1989-01-24 DE DE8989200139T patent/DE58900437D1/en not_active Expired - Fee Related
- 1989-01-24 AT AT89200139T patent/ATE69185T1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| EP0379741B1 (en) | 1991-11-06 |
| EP0379741A1 (en) | 1990-08-01 |
| ATE69185T1 (en) | 1991-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BR8607117A (en) | PERFECT PROCESS AND APPARATUS FOR PRESSURE SWING ADSORCATION | |
| CH538928A (en) | Method for producing objects, in particular large-area objects, by injection molding a mixture of plasticized plastic and a blowing agent and an injection molding machine suitable for this | |
| DE3481900D1 (en) | INJECTION MOLDING METHOD AND DEVICE. | |
| ES319816A1 (en) | Method for producing articles of thermo-effective resin. (Machine-translation by Google Translate, not legally binding) | |
| ATE129262T1 (en) | POLYAMIDE POWDER FROM PARTICLES WITH "SAND ROSE" STRUCTURE, METHOD FOR PRODUCING POLYAMIDE POWDER. | |
| DE69818022D1 (en) | METHOD FOR MOLDING A GEL FROM ORIENTED POLYOLEFIN RESIN COMPOSITION AND MOLDED BODIES PRODUCED BY THIS METHOD | |
| DE69206171T2 (en) | Process for separating multicomponent gas mixtures by selective adsorption. | |
| AT366396B (en) | METHOD FOR PRODUCING A MODIFIED PARTICLE PHENOL FORMALDEHYDE RESIN | |
| DE58900437D1 (en) | METHOD FOR CURING MOLDED BODIES, ESPECIALLY MOLDED MOLDING OR CORES MADE OF MOLDED SAND. | |
| ATE62839T1 (en) | PROCESS FOR HARDENING SAND MOLDINGS. | |
| DE3781678D1 (en) | METHOD FOR PRODUCING MOLDED PARTS FROM AN EXPANDABLE STYRENE POLYMER. | |
| ATA277274A (en) | METHOD AND DEVICE FOR PRODUCING FOAM, IN PARTICULAR POLYURETHANE FOAM, FROM A FLOWABLE REACTION MIXTURE | |
| DE69122304D1 (en) | Process for the separation of organic substances | |
| ATE23124T1 (en) | METHOD AND DEVICE FOR PRESSING PROFILES OF CONSTANT CROSS-SECTION FROM SMALL VEGETABLE PARTS. | |
| DE3871315D1 (en) | METHOD AND DEVICE FOR THE PRODUCTION OF FOUNDRY MOLDS AND CORES FROM SAND WITH A BINDING AGENT. | |
| ATE30864T1 (en) | MOLDING MACHINE FOR THE PRODUCTION OF BOXLESS MOLDS. | |
| ATE39630T1 (en) | METHOD AND DEVICE FOR PRODUCING OXYGEN ENRICHED AIR BY ADSORPTION. | |
| DK131613B (en) | A method of curing sand and resin casting elements by passing an air mixture through the elements and an apparatus for carrying out the method. | |
| FR2245433A1 (en) | Hardening sand/resin moulded foundry cores - by exposure to an amine enriched gas and then a current of air | |
| ATE19051T1 (en) | PROCESS FOR THE CARBONATIVE POST-HARDING OF MOLDINGS OF HYDROTHERMALLY HARDENED SILICA-LIME MASS. | |
| GB1269203A (en) | Improvements in the production of cores for use in the production of metal castings | |
| IT1054177B (en) | Hardening sand/resin moulded foundry cores - by exposure to an amine enriched gas and then a current of air | |
| SU293418A1 (en) | Method of manufacturing cores and moulds | |
| SU1286342A1 (en) | Method of producing moulds and cores | |
| JPS51142099A (en) | A method for manufacturing a polyamide molding material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |