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

A special bolt, injection molding machine technology, applied in heat treatment furnaces, heat treatment equipment, manufacturing tools, etc., can solve the problems of insufficient fatigue resistance and impact toughness, insufficient tensile strength, and inability to resist fatigue and impact fracture, etc. Achieve resistance to fatigue and impact fracture, high fatigue resistance and impact toughness

Inactive Publication Date: 2015-01-21
金方明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment Construction

[0009] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0010] As shown in the figure, the present invention includes a body and a heat treatment process, the body includes a bolt and a nut 2, the upper end of the bolt is set as an external thread structure 1, and a spring 3 is arranged in the middle, and the nut 2 Screw into the external thread structure 1 and press down the spring 3. A cylindrical retainer 4 is arranged under the spring 3, and the bottom thereof is set as a conical structure 5, and a circular through hole 6 is arranged in the middle thereof. The heat treatment The feature of the process is that after heating to austenitization, it is immersed in a suitable quenching medium to cool at a faster rate.

[0011] When selecting the quenching medium for the heat treatment process, sufficient cooling capacity should be ensured first, that is, the quenching medium with high cooling capacity should be sel...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B35/00F16B37/00F16B43/00C21D9/00C21D1/18
CPCC21D1/18C21D9/00F16B35/00F16B37/00F16B43/00
Inventor 金方明
Owner 金方明
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