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A Processing Technology for Improving the Overall Toughness of Screws

A processing technology and screw technology, which is applied in the direction of bolts, threaded fasteners, connecting components, etc., can solve problems such as fracture and failure to meet the toughness requirements of screws, and achieve the effects of improving compressive strength, reasonable design, and improving service life

Active Publication Date: 2020-04-14
WUHU JINYU FASTENER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The manufacturing process of the screw with the above structure is simple, and the structure is relatively simple. It can only meet the strength requirement of the screw, but cannot meet the toughness requirement of the screw. After the screw is subjected to high-strength pressure, it is easy to cause fracture.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0022] (1) First take out an appropriate amount of iron, aluminum and steel, and put them into melting furnaces at 1550°C, 690°C aluminum and 1550°C respectively for melting. After they are completely melted, take them out and mix them in the furnace to obtain molten metal ,spare;

[0023] (2) First use the cold heading machine to forge and cut the hollow steel column, and forge it into independent screw blanks for future use;

[0024] (3) Take out the steel wire again, utilize the winding machine, a plurality of steel wires are twisted into a steel wire bundle, then the steel wire bundle is cut into short and small steel wire bundles by a cross cutter, for subsequent use;

[0025] (4) Press each short steel wire bundle into the cavity formed by the screw one by one through the press;

[0026] (5) After pressing the short steel wire bundle into the cavity of the screw, pour molten metal into the cavity until the molten metal in the cavity is completely integrated with the inn...

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PUM

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Abstract

The invention mainly provides a processing technology for improving the overall toughness of a screw. A cavity is formed in the screw, and a steel wire tendon is arranged in the cavity and is formed by winding a plurality of steel wires. The processing technology is reasonable in design, the interior of the screw is mainly designed into a cavity structure, the steel wire tendon formed by winding the steel wires is arranged in the cavity, the cavity is filled with metal solution, the overall compressive strength of the screw can be improved, meanwhile, the toughness demand of the screw can alsobe met, and the service life of the screw is prolonged.

Description

technical field [0001] The invention mainly relates to the technical field of screw processing, in particular to a processing technology for improving the overall toughness of screws. Background technique [0002] Screw is a kind of common fastener, which is widely used in machinery, electrical appliances and buildings. The general material is metal or plastic, and it is cylindrical in shape. The surface is engraved with concave and convex grooves called threads. [0003] In the existing screw structure, all of them adopt an integrated structure. The inside of the screw adopts a solid structure without other complicated structures. The cold heading machine is directly used to forge the blank, and the surface of the screw blank is rubbed by a thread rolling machine. Silk. [0004] The manufacturing process of the screw with the above-mentioned structure is simple, and the structure is relatively simple, which can only meet the strength requirement of the screw, but cannot me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21K1/44
CPCB21K1/44
Inventor 胡吉钟胡如柳
Owner WUHU JINYU FASTENER