| 摘要 |
A shank system (10) for an injection molding nozzle (1) fitted with a heated injection material feeding pipe (3) itself comprising at its end a nozzle tip (5), said system comprising a main shank part (20), a thermally insulating spacer part (30) and a terminal shank part (40), the main shank part (20) and the spacer part (30) enclosing the injection material feeding pipe (3) while being a radial distance from it, the terminal shank part (40) subtending a recess (41) receiving in sealing manner the free end (4) of the injection material feeding pipe (3). At their end sides the main shank part (20), the spacer part (30) and the terminal shank part (40) are fitted with recesses (21, 31, 32) to receive at least one adjacent shank part (20, 30, 40). Before the fashioning of an external processing contour (K), they each are fitted with a solder repository (23, 33) receiving annular solder elements (24, 34) to solder to each other all three components (20, 30, 40). The annular terminal part (40) is hardened by the soldering procedure for the purpose of increasing its resistance to wear, the soldering temperature being within the range of the transformation temperature of the substance of the terminal shank part (40).
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