GB843300A - Improvements in or relating to moulding apparatus, the manufacture of such apparatusand moulding processes - Google Patents
Improvements in or relating to moulding apparatus, the manufacture of such apparatusand moulding processesInfo
- Publication number
- GB843300A GB843300A GB9011/58A GB901158A GB843300A GB 843300 A GB843300 A GB 843300A GB 9011/58 A GB9011/58 A GB 9011/58A GB 901158 A GB901158 A GB 901158A GB 843300 A GB843300 A GB 843300A
- Authority
- GB
- United Kingdom
- Prior art keywords
- moulding
- metal
- dispersion
- natural
- solution
- 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
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
- B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means
-
- 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
- B29C33/30—Mounting, exchanging or centering
- B29C33/303—Mounting, exchanging or centering centering mould parts or halves, e.g. during mounting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
A metal mould particularly for moulding natural and synthetic rubbers and resins has a moulding surface of porous metal at least part of which is impregnated with a non-adhesive non-metallic porous material with a non-adhesive non-metallic porous material. The mould may be of aluminium, iron, or stainless steel having a porous metal moulding surface provided by sintering or electro-chemical treatment. The porous metal surface is impregnated with a solution or dispersion of a natural or synthetic polymer and/or resin such as polytetrafluoroethylene, polytrifluoromonochloroethylene, or a silicone or silicones, or a mixture thereof, and heated to dry the impregnant and to sinter it to form a porous mass. The solution or dispersion may contain a blowing agent such as ammonium nitrate or chloride, urea, or a polyacrylate. The porosity of the sintered mass may also be improved if the mould is used before the application of the solution or dispersion for the moulding of a carbonisable natural or synthetic rubber or resin, the deposits of which in the pores of the metal are carbonised during the subsequent-heat treatment. Specification 664,730 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT843300X | 1957-03-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB843300A true GB843300A (en) | 1960-08-04 |
Family
ID=11325065
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9011/58A Expired GB843300A (en) | 1957-03-29 | 1958-03-20 | Improvements in or relating to moulding apparatus, the manufacture of such apparatusand moulding processes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB843300A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5431873A (en) * | 1992-10-07 | 1995-07-11 | Compagnie Generale Des Etablissements Michelin - Micheline & Cie | Tire mold and process for making the mold |
US6283744B1 (en) | 1998-05-29 | 2001-09-04 | Unilever Home & Personal Care Usa, Division Of Conopco | Hybrid soap stamping bars |
-
1958
- 1958-03-20 GB GB9011/58A patent/GB843300A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5431873A (en) * | 1992-10-07 | 1995-07-11 | Compagnie Generale Des Etablissements Michelin - Micheline & Cie | Tire mold and process for making the mold |
US6283744B1 (en) | 1998-05-29 | 2001-09-04 | Unilever Home & Personal Care Usa, Division Of Conopco | Hybrid soap stamping bars |
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