EP0907474B1 - Unterform - Google Patents
Unterform Download PDFInfo
- Publication number
- EP0907474B1 EP0907474B1 EP97922874A EP97922874A EP0907474B1 EP 0907474 B1 EP0907474 B1 EP 0907474B1 EP 97922874 A EP97922874 A EP 97922874A EP 97922874 A EP97922874 A EP 97922874A EP 0907474 B1 EP0907474 B1 EP 0907474B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- half mould
- magnesium
- magnesium alloy
- lower mold
- sub
- 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 - Lifetime
Links
- 229910000861 Mg alloy Inorganic materials 0.000 claims abstract description 11
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 8
- 239000011777 magnesium Substances 0.000 claims abstract description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 3
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 3
- 239000011572 manganese Substances 0.000 claims abstract description 3
- 239000011701 zinc Substances 0.000 claims abstract description 3
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 3
- 239000004411 aluminium Substances 0.000 claims abstract 2
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
- C22C23/02—Alloys based on magnesium with aluminium as the next major constituent
-
- 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
- B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
- B28B7/0055—Mould pallets; Mould panels
-
- 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
Definitions
- the invention relates to a lower mold for a device for Manufacture of concrete roof tiles.
- DE-A-35 22 846 describes a method and a device known for the production of concrete roof tiles. Doing so a continuously conveyed strand from the front abutting sub-forms from a coherent band Fresh concrete applied by the top of it Forming tools according to the usual for concrete roof tiles Surface contour is formed.
- This continuously applied tape is in a cutting station by an in Conveying direction reversible movable cutting tool each exactly at the joint between two subforms cut up so that each subform is a single fitting carries, here a concrete roof tile blank.
- the strand of the subforms with a reversing movement of the Cutting tool promoted by the length of a lower mold become.
- At the foot of each concrete roof tile blank is then a short piece with a molding tool cut and formed a round or bevel.
- the concrete roof tile blanks lying on the lower molds are usually spaced apart in the conveying direction fed to a coating device in which the Top and the rounded or beveled front Front side of the concrete roof blank one Surface coating is applied. This also remains always on the front face of the lower mold Coating mass stick, so that this end face when going through the coating device several times Layer builds up. Bump due to the layer structure the successive subforms in the strand on the face no longer directly to each other, and the distance between the Sub-forms are increasing rapidly. As a result, that of belt no longer transported to the strand of sub-molds cut the joint between two sub-forms, so that the cutting tool can hit one of the lower molds, which damages the cutting tool and the lower mold can.
- the Sub-molds are supplied to a cleaning device in which adheres to the end faces of the lower molds Coating mass is removed.
- EP 0 308 661 describes a method and a device known for cleaning sub-forms, in which the to cleaning sub-forms individually removed from the strand and be fed to a cleaning station.
- the Cleaning station points to the face of the lower mold press-on toothed rollers and scrapers between which the Bottom form is promoted.
- the break Tooth rollers that adhere to the end faces of the lower mold Layers on so that the broken coating from the Wipers can be scraped off.
- the cleaned bottom mold is back in the Strand inserted.
- the object of the present invention is to provide a sub-mold for a device for the production of concrete roof tiles create that are cleaned under gentler conditions can.
- the object is achieved in that the front end of the lower mold at least in which the Surface forming area predominantly made of magnesium consists.
- the cleaning intervals can be extended and the pressure required to break up the layers can be reduced so that the subform is a distinct has a longer service life.
- the bottom mold has a wear-resistant surface, though the area forming the surface from a Magnesium alloy exists.
- a particularly suitable magnesium alloy should be about 7 to 9.5% aluminum, about 0.3 to 1% zinc and about 0.1 to 0.3% Manganese included.
- the magnesium alloys have proven themselves AZ 81 and AZ 91.
- the area of the lower mold forming the surface can for example with magnesium Material clad.
- the lower mold can also for example one cast with a magnesium alloy Have core.
- the Concrete roofing industry it is common for a set of Subforming a Dachstein model in succession in several Concrete roof tile works is used.
- When changing the Production on a different Dachstein model must all Subforms a set, about 50,000 pieces, from the Device removed, to the other concrete roof tile transported and used in the device there become.
- an aluminum alloy sub-mold is a Has a mass of about 3.5 kg, has a completely of the magnesium alloy existing subform a mass of about 2.5 kg.
- a reduction of 1 kg results in one Reduction of the mass to be transported by around 50 t and accordingly a considerable cost saving.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Table Devices Or Equipment (AREA)
- Prevention Of Electric Corrosion (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
- Jellies, Jams, And Syrups (AREA)
Description
Claims (6)
- Unterform für eine Strangpreßvorrichtung zur Herstellung von Betondachsteinen,
dadurch gekennzeichnet,
daß die vordere Stirnseite der Unterton zumindest in dem die Oberfläche bildenden Bereich überwiegend aus Magnesium besteht. - Unterform nach Anspruch 1,
dadurch gekennzeichnet,
daß der die Oberfläche bildende Bereich aus einer Magnesiumlegierung besteht. - Unterform nach Anspruch 2,
dadurch gekennzeichnet,
daß die Magnesiumlegierung etwa 7 bis 9,5% Aluminium, etwa 0,3 bis 1% Zink und etwa 0,1 bis 0,3% Mangan enthält. - Unterform nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß die Oberseite der Unterform zumindest in dem die Oberfläche bildenden Bereich überwiegend aus Magnesium besteht. - Unterform nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß sämtliche Flächen der Unterform zumindest in dem die Oberfläche bildenden Bereich überwiegend aus Magnesium bestehen. - Unterform nach einem der Ansprüche 2 bis 5,
dadurch gekennzeichnet,
daß die Unterform vollständig aus der Magnesiumlegierung besteht.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19620923A DE19620923C1 (de) | 1996-05-24 | 1996-05-24 | Unterform |
| DE19620923 | 1996-05-24 | ||
| PCT/DE1997/000853 WO1997045237A1 (de) | 1996-05-24 | 1997-04-25 | Unterform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0907474A1 EP0907474A1 (de) | 1999-04-14 |
| EP0907474B1 true EP0907474B1 (de) | 2000-01-05 |
Family
ID=7795199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97922874A Expired - Lifetime EP0907474B1 (de) | 1996-05-24 | 1997-04-25 | Unterform |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0907474B1 (de) |
| AT (1) | ATE188413T1 (de) |
| AU (1) | AU2886997A (de) |
| CZ (1) | CZ377898A3 (de) |
| DE (2) | DE19620923C1 (de) |
| DK (1) | DK0907474T3 (de) |
| WO (1) | WO1997045237A1 (de) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB596884A (en) * | 1945-07-31 | 1948-01-13 | George Harold Carter | Improvements in or relating to pallets for use in making tiles, bricks and the like |
| GB1389025A (en) * | 1971-12-21 | 1975-04-03 | Powel Automation Ltd | Method of making roofing tiles |
| DE3732359A1 (de) * | 1987-09-25 | 1989-04-06 | Braas & Co Gmbh | Verfahren und vorrichtung zur reinigung von unterformen zum formen von platten aus einer haertbaren plastischen masse im strangpressverfahren |
-
1996
- 1996-05-24 DE DE19620923A patent/DE19620923C1/de not_active Expired - Fee Related
-
1997
- 1997-04-25 CZ CZ983778A patent/CZ377898A3/cs unknown
- 1997-04-25 WO PCT/DE1997/000853 patent/WO1997045237A1/de not_active Ceased
- 1997-04-25 DK DK97922874T patent/DK0907474T3/da active
- 1997-04-25 EP EP97922874A patent/EP0907474B1/de not_active Expired - Lifetime
- 1997-04-25 AT AT97922874T patent/ATE188413T1/de not_active IP Right Cessation
- 1997-04-25 AU AU28869/97A patent/AU2886997A/en not_active Abandoned
- 1997-04-25 DE DE59700982T patent/DE59700982D1/de not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ATE188413T1 (de) | 2000-01-15 |
| AU2886997A (en) | 1998-01-05 |
| EP0907474A1 (de) | 1999-04-14 |
| CZ377898A3 (cs) | 1999-11-17 |
| DE59700982D1 (de) | 2000-02-10 |
| WO1997045237A1 (de) | 1997-12-04 |
| DK0907474T3 (da) | 2000-05-15 |
| DE19620923C1 (de) | 1997-06-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2730702C (en) | Method for producing steel fibres | |
| EP0853987A3 (de) | Anlage zum Herstellen eines Bandes, Vorstreifens oder einer Bramme | |
| DE1282861B (de) | Stranggiesskokille zur Herstellung eines spaeter zu verwalzenden Profilrohlings | |
| DE2930435A1 (de) | Verfahren zum herstellen von metallagern | |
| EP0907474B1 (de) | Unterform | |
| DE69010161T2 (de) | Verfahren und Vorrichtung zum Einzel- oder Doppelrollen-Stranggiessen. | |
| DE920362C (de) | Verfahren und Anlage zur Herstellung von Metall-Halbfabrikaten ver-schiedener Art (Draehte, Barren, Stangen, Platten, Baender, Bleche od. dgl.) | |
| DE1602127A1 (de) | Verfahren zur Beseitigung bzw. Verringerung von Innenfehlern bei Halbzeug,insbesondere bei gegossenen Bloecken,Brammen,Knueppeln u.dgl. | |
| DE3712700C2 (de) | ||
| DE3732357A1 (de) | Verfahren und vorrichtung zur reinigung von unterformen zum formen von platten aus einer haertbaren plastischen masse im strangpressverfahren | |
| DE576837C (de) | Verfahren und Vorrichtung zur Herstellung von Reibbelaegen | |
| DE19531471C1 (de) | Verfahren zum Zerschneiden eines Bandes aus plastisch verformbarem Material in einzelne Formstücke | |
| DE10247129A1 (de) | Verfahren zur Herstellung von Profilen oder Blechformteilen | |
| DE1552120A1 (de) | Verfahren und Vorrichtung zum Herstellen von Ringlagern | |
| DE93399C (de) | ||
| AT393861B (de) | Schalungsform, verfahren zu deren herstellung sowie einrichtung zur durchfuehrung des verfahrens | |
| DE907042C (de) | Herstellung von Doppelmetallfahrdraehten | |
| DE458583C (de) | Verfahren und Vorrichtung zur Herstellung von Kanalsteinen | |
| EP1008428A2 (de) | Verfahren zum Herstellen einer Pressform, insbesondere zum Erzeugen von Dachziegeln, und Pressform | |
| DE123021C (de) | ||
| DE553262C (de) | Verfahren zur Herstellung von Profilen mit schwalbenschwanzfoermiger Laengsrippe | |
| DE3609811A1 (de) | Vorrichtung und verfahren zur kontinuierlichen herstellung von duennen metallstreifen | |
| DE3112248C2 (de) | Verfahren zur spanlosen Formgebung von Werkstücken | |
| DE2440798A1 (de) | Verfahren zum abtragen der oberflaeche von einem kontinuierlich gegossenen bandfoermigen strang | |
| DE341304C (de) |
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 |
|
| 17P | Request for examination filed |
Effective date: 19981103 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE DE DK FR GB IT NL SE |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| 17Q | First examination report despatched |
Effective date: 19990506 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: LAFARGE BRAAS ROOFING ACCESSORIES GMBH & CO. KG. |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE DE DK FR GB IT NL SE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 20000105 |
|
| REF | Corresponds to: |
Ref document number: 188413 Country of ref document: AT Date of ref document: 20000115 Kind code of ref document: T |
|
| REF | Corresponds to: |
Ref document number: 59700982 Country of ref document: DE Date of ref document: 20000210 |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20000228 |
|
| ITF | It: translation for a ep patent filed | ||
| ET | Fr: translation filed | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000425 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000425 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000426 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000430 |
|
| REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 |
|
| BERE | Be: lapsed |
Owner name: LAFARGE BRAAS ROOFING ACCESSORIES G.M.B.H. & CO. Effective date: 20000430 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| EUG | Se: european patent has lapsed |
Ref document number: 97922874.9 |
|
| REG | Reference to a national code |
Ref country code: DK Ref legal event code: EBP |
|
| 26N | No opposition filed | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010201 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010425 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20011101 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20010425 |
|
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20011101 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050425 |