Use of moulded metal moulds in place of sand moulds for
Reinforced mouldings produced using a two-part mould made by first building a model of the mould, say in wood, and using the mould to form a (foundary-type) mould in which a positive copy of the model mould may be moulded, pref. in a light metal (aluminium). By covering the mould with a model of the...
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Main Author | |
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Format | Patent |
Language | English German |
Published |
30.09.1970
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Edition | 1 |
Subjects | |
Online Access | Get full text |
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Summary: | Reinforced mouldings produced using a two-part mould made by first building a model of the mould, say in wood, and using the mould to form a (foundary-type) mould in which a positive copy of the model mould may be moulded, pref. in a light metal (aluminium). By covering the mould with a model of the article, the other part of the mould may be moulded. The moulded mould halves are flanged to allow them to be mated together to provide an intermediate cavity in which a fluid plastic material may be moulded. Alternatively a bound sand mould may be used for one half of the mould. Esp. for moulding of casting resins, e.g. epoxy materials. Metal moulds formed from a model are more hard wearing and give more reproducible results than use of bound sand moulds, esp. if reinforcing elements are to be placed in the mould prior to introducing the resin. |
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Bibliography: | Application Number: CH19680011168 |