BR9911181A - Extrusion die, and process for making extrusion die. - Google Patents
Extrusion die, and process for making extrusion die.Info
- Publication number
- BR9911181A BR9911181A BR9911181-0A BR9911181A BR9911181A BR 9911181 A BR9911181 A BR 9911181A BR 9911181 A BR9911181 A BR 9911181A BR 9911181 A BR9911181 A BR 9911181A
- Authority
- BR
- Brazil
- Prior art keywords
- extrusion
- preform chamber
- depth
- matrix
- cavity
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
"MATRIZ DE EXTRUSãO E PROCESSO PARA A FABRICAçãO DE UMA MATRIZ DE EXTRUSãO". Uma matriz de extrusão compreende uma cavidade da matriz com condutor zero (12) possuindo uma forma que corresponde à forma da seção em corte da extrusão requerida. Com a finalidade de controlar o escoamento do material em extrusão através da cavidade, uma câmara de preforma (17) é proporcionada a qual se comunica com a cavidade da matriz mas tem uma área maior. A profundidade e/ou a largura da câmara de preforma variam nas diferentes regiões da mesma, as dimensões de cada região sendo relacionadas com as dimensões e posição da região correspondente da cavidade da matriz (12). Quando em uso, o material em extrusão passa através das diferentes regiões da câmara de preforma em diferentes velocidades, de tal forma que o material passa subsequentemente através de todas as regiões da cavidade da matriz propriamente dita com uma velocidade substancialmente uniforme. A profundidade da câmara de preforma não é maior que aproximadamente 5 mm, e pode ser de qualquer profundidade menor, até menos de aproximadamente 0,5 mm. Não obstante a sua profundidade muito pequena, a câmara de preforma permite um controle acurado da velocidade do material em extrusão enquanto permite ao mesmo tempo que uma alta velocidade de extrusão seja mantida."EXTRUSION MATRIX AND PROCESS FOR THE MANUFACTURE OF AN EXTRUSION MATRIX". An extrusion die comprises a zero-conducting die cavity (12) having a shape that corresponds to the shape of the required cross-section of the extrusion. In order to control the flow of the extruded material through the cavity, a preform chamber (17) is provided which communicates with the matrix cavity but has a larger area. The depth and / or width of the preform chamber vary in the different regions of the same, the dimensions of each region being related to the dimensions and position of the corresponding region of the matrix cavity (12). When in use, the extruded material passes through the different regions of the preform chamber at different speeds, such that the material subsequently passes through all regions of the die cavity itself with a substantially uniform speed. The depth of the preform chamber is not greater than approximately 5 mm, and can be of any depth less than less than approximately 0.5 mm. Despite its very small depth, the preform chamber allows an accurate control of the speed of the extruded material while at the same time allowing a high extrusion speed to be maintained.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9812697.2A GB9812697D0 (en) | 1998-06-13 | 1998-06-13 | Improvements in or relating to the manufacture of extrusion dies |
| PCT/GB1999/001794 WO1999065622A1 (en) | 1998-06-13 | 1999-06-08 | Improvements in or relating to the manufacture of extrusion dies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR9911181A true BR9911181A (en) | 2001-03-13 |
Family
ID=10833648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR9911181-0A BR9911181A (en) | 1998-06-13 | 1999-06-08 | Extrusion die, and process for making extrusion die. |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1119424A1 (en) |
| JP (1) | JP2002518178A (en) |
| AU (1) | AU765791B2 (en) |
| BR (1) | BR9911181A (en) |
| CA (1) | CA2334667A1 (en) |
| GB (1) | GB9812697D0 (en) |
| WO (1) | WO1999065622A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0007948D0 (en) * | 2000-04-01 | 2000-05-17 | Caton International Investment | Extrusion die |
| EP2663162B1 (en) | 2012-05-10 | 2017-01-11 | Goodrich Lighting Systems GmbH | LED flash light and method for indicating near-end-of-life status of such an LED flash light |
| NL2017715B1 (en) * | 2016-11-04 | 2018-05-23 | Boal B V | Multi-bearing extrusion die |
| NL2019695B1 (en) * | 2017-10-10 | 2019-04-17 | Boal Bv | Extrusion die |
| CN109226322B (en) * | 2018-10-31 | 2020-04-03 | 龙图节能铝材（宣城）有限公司 | Production process for simultaneously extruding AB surfaces of environment-friendly aluminum profiles |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2894625A (en) * | 1953-12-18 | 1959-07-14 | Dow Chemical Co | Extrusion die assembly with flow-correcting baffle plate |
| JP2550384B2 (en) * | 1988-03-18 | 1996-11-06 | 昭和アルミニウム株式会社 | Method for producing extruded aluminum alloy material with suppressed surface recrystallization |
| JPH08251B2 (en) * | 1991-07-15 | 1996-01-10 | 昭和アルミニウム株式会社 | Aluminum alloy extruded material for welded structure with improved weld cracking and method for producing the same |
| ES2036960B1 (en) * | 1992-04-28 | 1994-08-16 | Prial Technical Services | SYSTEM FOR CONSTRUCTION OF DIES FOR THE EXTRUSION OF SOLID ALUMINUM PROFILES. |
-
1998
- 1998-06-13 GB GBGB9812697.2A patent/GB9812697D0/en not_active Ceased
-
1999
- 1999-06-08 AU AU42779/99A patent/AU765791B2/en not_active Ceased
- 1999-06-08 JP JP2000554487A patent/JP2002518178A/en not_active Withdrawn
- 1999-06-08 WO PCT/GB1999/001794 patent/WO1999065622A1/en not_active Application Discontinuation
- 1999-06-08 BR BR9911181-0A patent/BR9911181A/en unknown
- 1999-06-08 CA CA002334667A patent/CA2334667A1/en not_active Abandoned
- 1999-06-08 EP EP99957030A patent/EP1119424A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| GB9812697D0 (en) | 1998-08-12 |
| EP1119424A1 (en) | 2001-08-01 |
| CA2334667A1 (en) | 1999-12-23 |
| WO1999065622A1 (en) | 1999-12-23 |
| JP2002518178A (en) | 2002-06-25 |
| AU765791B2 (en) | 2003-10-02 |
| AU4277999A (en) | 2000-01-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B25A | Requested transfer of rights approved |
Free format text: PREFORM DIES LIMITED (GB) |
|
| B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE A 5A E 6A ANUIDADES. |