FR2392794A1 - PROCESS AND MOLD FOR FORMING PLATES WITH EXPECTED SURFACE FAULTS - Google Patents
PROCESS AND MOLD FOR FORMING PLATES WITH EXPECTED SURFACE FAULTSInfo
- Publication number
- FR2392794A1 FR2392794A1 FR7816215A FR7816215A FR2392794A1 FR 2392794 A1 FR2392794 A1 FR 2392794A1 FR 7816215 A FR7816215 A FR 7816215A FR 7816215 A FR7816215 A FR 7816215A FR 2392794 A1 FR2392794 A1 FR 2392794A1
- Authority
- FR
- France
- Prior art keywords
- mold
- forming plates
- expected surface
- surface faults
- molds
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/42—Moulds or cores; Details thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
- B29C33/424—Moulding surfaces provided with means for marking or patterning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/37—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings
- B29C45/372—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings provided with means for marking or patterning, e.g. numbering articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0094—Condition, form or state of moulded material or of the material to be shaped having particular viscosity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0072—Roughness, e.g. anti-slip
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0072—Roughness, e.g. anti-slip
- B29K2995/0073—Roughness, e.g. anti-slip smooth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3055—Cars
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Reinforced Plastic Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
L'invention est relative à des moules pour le moulage par compression de matières plastiques visqueuses en pièces dont la face apparente soit exempte de défauts. Dans ces moules, la surface qui correspond à la face cachée des pièces est rendue plus rugueuse, par exemple par abrasion, que la surface qui correspond à la face apparente, de façon que la matière plastique s'écoule plus rapidement sur la surface la plus lisse et entraîne ainsi les bulles d'air vers la surface la plus rugueuse. Utilisation pour la fabrication par exemple de panneaux d'automobiles sans défauts de surface.The invention relates to molds for the compression molding of viscous plastics into pieces, the visible face of which is free from defects. In these molds, the surface which corresponds to the hidden face of the parts is made rougher, for example by abrasion, than the surface which corresponds to the visible face, so that the plastic material flows more quickly over the more surface. smooth and thus draws air bubbles to the rougher surface. Use for the production of, for example, automotive panels without surface defects.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US80170977A | 1977-05-31 | 1977-05-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2392794A1 true FR2392794A1 (en) | 1978-12-29 |
FR2392794B1 FR2392794B1 (en) | 1980-07-11 |
Family
ID=25181855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7816215A Granted FR2392794A1 (en) | 1977-05-31 | 1978-05-31 | PROCESS AND MOLD FOR FORMING PLATES WITH EXPECTED SURFACE FAULTS |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS53149273A (en) |
CA (1) | CA1108819A (en) |
DE (1) | DE2802236C3 (en) |
FR (1) | FR2392794A1 (en) |
GB (1) | GB1598480A (en) |
IT (1) | IT1095072B (en) |
SE (1) | SE426562B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0444367A1 (en) * | 1988-08-25 | 1991-09-04 | Daicel Chemical Industries, Ltd. | A stamper for injection molding |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5943120U (en) * | 1982-09-13 | 1984-03-21 | ミサワホ−ム株式会社 | FRP molded product with grain |
JPS634145U (en) * | 1986-06-26 | 1988-01-12 | ||
JPS63112120A (en) * | 1986-10-31 | 1988-05-17 | Ube Nitto Kasei Kk | Method for molding reinforced thermoplastic resin molding |
JPH033157U (en) * | 1989-05-30 | 1991-01-14 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1240923A (en) * | 1958-11-22 | 1960-09-09 | Process for manufacturing objects in liquid synthetic resin, reinforced with fibrous materials, and hardening by catalysis effect | |
DE2649267A1 (en) * | 1976-10-29 | 1978-05-03 | Bayer Ag | Electrically and/or thermally conductive metal-fibre filled articles - produced by screw injection moulding with formation of sec. boundary layer flow |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5119802B2 (en) * | 1971-08-21 | 1976-06-21 |
-
1978
- 1978-01-19 DE DE2802236A patent/DE2802236C3/en not_active Expired
- 1978-02-15 JP JP1549478A patent/JPS53149273A/en active Granted
- 1978-05-30 SE SE7806259A patent/SE426562B/en unknown
- 1978-05-30 IT IT24004/78A patent/IT1095072B/en active
- 1978-05-30 CA CA304,391A patent/CA1108819A/en not_active Expired
- 1978-05-31 GB GB25767/78A patent/GB1598480A/en not_active Expired
- 1978-05-31 FR FR7816215A patent/FR2392794A1/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1240923A (en) * | 1958-11-22 | 1960-09-09 | Process for manufacturing objects in liquid synthetic resin, reinforced with fibrous materials, and hardening by catalysis effect | |
DE2649267A1 (en) * | 1976-10-29 | 1978-05-03 | Bayer Ag | Electrically and/or thermally conductive metal-fibre filled articles - produced by screw injection moulding with formation of sec. boundary layer flow |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0444367A1 (en) * | 1988-08-25 | 1991-09-04 | Daicel Chemical Industries, Ltd. | A stamper for injection molding |
Also Published As
Publication number | Publication date |
---|---|
DE2802236A1 (en) | 1978-12-07 |
SE7806259L (en) | 1978-12-01 |
IT1095072B (en) | 1985-08-10 |
IT7824004A0 (en) | 1978-05-30 |
DE2802236C3 (en) | 1981-12-24 |
FR2392794B1 (en) | 1980-07-11 |
SE426562B (en) | 1983-01-31 |
GB1598480A (en) | 1981-09-23 |
DE2802236B2 (en) | 1981-05-07 |
JPS53149273A (en) | 1978-12-26 |
CA1108819A (en) | 1981-09-15 |
JPS6155451B2 (en) | 1986-11-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |