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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Bibliographic Details
Main Author RINGE,WERNER
Format Patent
LanguageEnglish
German
Published 30.09.1970
Edition1
Subjects
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
PERFORMING OPERATIONS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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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.
Bibliography:Application Number: CH19680011168