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Production technology of extremely flat nuts

A production process, the technology of special flat nut, applied in the direction of nuts, threaded fasteners, connecting components, etc., can solve the problems of unstable product quality, difficult processing, low precision, etc., to improve production efficiency and product quality stability, The effect of reducing production costs and improving overall performance

Inactive Publication Date: 2015-05-20
HENGYANG FENGSHUN AXLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current production of nuts is mostly produced by hexagonal square steel through cutting, drilling, tapping and other processes, but for special flat nuts with small thickness, large inner hole and small wall thickness, if the above method is used to process, it will cause processing difficulties , such as inconvenient clamping, easy deformation due to clamping, low precision after processing, etc., resulting in low production efficiency and unstable product quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A kind of special flat nut production technology, comprises the steps:

[0015] (1) Raw material selection: The raw material is carbon steel hexagonal square steel bar, which is cut into regular hexagonal square steel bars by cutting machine, the diameter of hexagonal square steel bar and the length of each section of regular hexagonal square steel are determined by the The volume of the special flat nut is reasonably selected, and then the regular hexagonal square steel section is solid solution treated;

[0016] (2) Cold heading: Put the heat-treated regular hexagonal square steel section into the cold heading machine, cold heading at room temperature, cold heading the regular hexagonal square steel into oblique hexagonal square steel, and further flatten the oblique hexagonal square steel , and finally cold heading into a cylindrical steel section, the thickness and diameter of this cylindrical steel section just meet the required special flat nut specifications;

...

Embodiment 2

[0022] A kind of special flat nut production technology, comprises the steps:

[0023] (1) Raw material selection: The raw material is carbon steel hexagonal square steel bar, which is cut into regular hexagonal square steel bars by cutting machine, the diameter of hexagonal square steel bar and the length of each section of regular hexagonal square steel are determined by the The volume of the special flat nut is reasonably selected, and then the regular hexagonal square steel section is solid solution treated;

[0024] (2) Cold heading: Put the heat-treated regular hexagonal square steel section into the cold heading machine, cold heading at room temperature, cold heading the regular hexagonal square steel into oblique hexagonal square steel, and further flatten the oblique hexagonal square steel , and finally cold heading into a cylindrical steel section, the thickness and diameter of this cylindrical steel section just meet the required special flat nut specifications;

...

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PUM

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Abstract

A production technology of extremely flat nuts includes the following steps of raw material selection, cold heating, punching, tapping and post-treatment. In the punching process, pits are punched in the two ends of a steel segment, and then middle holes are punched in the pits. Heat treatment processes exist in both the raw material selection process and the post-treatment process, and quenching liquid adopted in the post-treatment process is borax solution. The production technology of the extremely flat nuts has the advantages of being high in production efficiency, stable in product quality, low in production cost, convenient to operate and the like, thereby having good application prospects in the industry.

Description

technical field [0001] The invention belongs to the technical field of nut manufacturing, in particular to a production process for extra flat nuts. Background technique [0002] The current production of nuts is mostly produced by hexagonal square steel through cutting, drilling, tapping and other processes, but for special flat nuts with small thickness, large inner hole and small wall thickness, if the above method is used to process, it will cause processing difficulties , such as inconvenient clamping, easy deformation due to clamping, and low precision after processing, which eventually lead to low production efficiency and unstable product quality. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a special flat nut production process, which has the advantages of high production efficiency, stable product quality, low production cost, and convenient operation. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00F16B37/00
Inventor 刘登发尤华胜
Owner HENGYANG FENGSHUN AXLE CO LTD
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