Specially-made bolt of gland of injection molding machine and heat treatment process of specially-made bolt

Abstract

The invention discloses a specially-made bolt of a gland of an injection molding machine and a heat treatment process of the specially-made bolt. The heat treatment process comprises a body treatment procedure and a heat treatment procedure. The body comprises a bolt body and a nut, the upper end of the bolt body is of an external thread-shaped structure, a spring is arranged in the middle of the bolt body, the nut is screwed into the external thread-shaped structure and presses the spring, a cylindrical baffle is arranged below the spring, the bottom of the baffle is arranged to be of a conical structure, and a circular through hole is formed in the middle of the baffle. The heat treatment process is characterized in that after the bolt is heated to be austenitized, the bolt is immersed in appropriate quenching media to be cooled at a high speed. The tensile strength of the bolt is high enough, so the bolt is resistant to lengthening, breaking, thread slipping and abrasion; the bolt also has high fatigue resistance and impact toughness, so the bolt can resist fatigue and impact fracture and be well applied to the injection molding machine.

Description

technical field [0001] The invention relates to a mechanical product, in particular to a special bolt for the gland of an injection molding machine and a heat treatment process thereof. Background technique [0002] Some injection molding machine gland bolts on the existing market cannot resist elongation, breaking, slipping and wear, and the fatigue resistance and impact toughness are not high enough to resist fatigue and impact fracture, and cannot be well used in In the injection molding machine. Contents of the invention [0003] The invention provides a special bolt for the gland of an injection molding machine and a heat treatment process thereof. [0004] The purpose of the present invention is to solve the problem that some existing injection molding machine gland bolts do not have high enough tensile strength to resist elongation, breaking, slipping and wear, and the fatigue resistance and impact toughness are not high enough to resist Fatigue and impact fractur...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that some existing injection molding machine gland bolts do not have high enough tensile strength to resist elongation, breaking, slipping and wear, and the fatigue resistance and impact toughness are not high enough to resist Fatigue and impact fracture, not well used in injection molding machines

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