Claims
- 1. A method for making a mold frame for receiving a plurality of half molds comprising:
- (a) forming in a mold plate at least four rows, each comprising a plurality of spaced cavities;
- (b) forming a row bore in each row, said row bore interconnecting the cavities in each row and extending beyond the end cavity in each row;
- (c) forming two cross-bores, one cross-bore interconnecting the row bores at one end of the rows and the second cross-bore interconnecting the row bores on the other end of the rows;
- (d) fixing a sleeve to said frame by means by soldering or brazing in each of said cavities, said sleeve defining a space between itself and the walls of said cavity;
- (e) sealing off one said cross-bore between the first and second and the third and fourth row bores and sealing off said second cross-bore between the second and third row bores;
- (f) forming an inlet to a cross-bore in the first row; and
- (g) forming an outlet from a cross-bore at the last row whereby a serpentine fluid communication is produced between said inlet through the row bore in each row of cavities and out of said outlet.
- 2. The method of claim 1 wherein there are seven rows of six cavities each and further comprising sealing off said one cross-bore between the fifth and sixth rows and sealing off said second cross-bore between the fourth and fifth and the sixth and seventh rows.
Parent Case Info
This is a division of application Ser. No. 902,229 Filed Aug. 29, 1986, now U.S. Pat. No. 4,757,972.
US Referenced Citations (16)
Foreign Referenced Citations (1)
Number |
Date |
Country |
2159231 |
Nov 1971 |
FRX |
Divisions (1)
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Number |
Date |
Country |
Parent |
902229 |
Aug 1986 |
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