IT1248856B - Process and press for making cores from foundry sand for foundrywork
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Process and press for making cores from foundry sand for foundrywork
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IT1248856B
IT1248856BIT02065190AIT2065190AIT1248856BIT 1248856 BIT1248856 BIT 1248856BIT 02065190 AIT02065190 AIT 02065190AIT 2065190 AIT2065190 AIT 2065190AIT 1248856 BIT1248856 BIT 1248856B
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This is a process for making cores whereby green sand is used as the foundry sand and is poured into a compression mould and the green sand is precompressed using a hydraulic press in the compression mould and is finish- compressed after the precompression. Complicated cores can be made exactly and inexpensively in this way from green sand. Figure 1 <IMAGE>
IT02065190A1990-06-151990-06-15Process and press for making cores from foundry sand for foundrywork
IT1248856B
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