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Hexagonal socket head cap screw production technology method

A production process and screw technology, which is applied in the field of cup head screw production and application, can solve the problems of excessive head thickness, unstable one punch forming torque, and large adjustment time error, so as to reduce the difficulty and cost, and improve the overall The effect of quality and stability improvement

Inactive Publication Date: 2020-05-29
鹏驰五金制品(昆山)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the past, the cylindrical head socket head cap screws with full half teeth were produced with the same wire material, which could easily lead to inconsistent feeding lengths of the head forming molds, resulting in unstable head forming, and easily causing the support surface under the head to fail to meet the standard requirements. The thickness of the head is too poor, and the appearance is not good, the metal flow line is slightly twisted, the on-site debugging is unstable, and the mold life is relatively low; and the technical requirements for the operators are relatively high, because each operator has different skills , it is easy to cause errors in the final product, and the adjustment time error is large

Method used

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  • Hexagonal socket head cap screw production technology method
  • Hexagonal socket head cap screw production technology method
  • Hexagonal socket head cap screw production technology method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A kind of cup head screw production process method, described production process method comprises the steps:

[0055] (1) Annealing, heating the plate to 500-700°C, keeping the heating time for 50-60min, and then cooling slowly to adjust the crystal structure, reduce the hardness, and improve the workability of the plate at room temperature;

[0056] (2) pickling

[0057] a. Hydrochloric acid washing, after the annealed disc is immersed in three hydrochloric acid tanks with a concentration of 20-25% at room temperature for several minutes, the oxide film on the surface of the disc is removed;

[0058] b. Washing with oxalic acid, immerse the plate in oxalic acid for 5-6 minutes;

[0059] c. Film treatment, immerse the disc in phosphate for 10-12 minutes to form a film on the surface of the disc;

[0060] e. Lubrication, immerse the disk element in sodium soap solution, and form a hard metal soap layer on the surface to increase the lubricating performance;

[0061] (...

Embodiment 2

[0084] A kind of cup head screw production process method, described production process method comprises the steps:

[0085] (1) Annealing, heating the plate to 500-700°C, keeping the heating time for 50-60min, and then cooling slowly to adjust the crystal structure, reduce the hardness, and improve the workability of the plate at room temperature;

[0086] (2) pickling

[0087] a. Hydrochloric acid washing, after the annealed disc is immersed in three hydrochloric acid tanks with a concentration of 20-25% at room temperature for several minutes, the oxide film on the surface of the disc is removed;

[0088] b. Washing with oxalic acid, immerse the plate in oxalic acid for 5-6 minutes;

[0089] c. Film treatment, immerse the disc in phosphate for 10-12 minutes to form a film on the surface of the disc;

[0090] e. Lubrication, immerse the disk element in sodium soap solution, and form a hard metal soap layer on the surface to increase the lubricating performance;

[0091] (...

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PUM

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Abstract

The invention discloses a hexagonal socket head cap screw production technology method. The production technology method comprises the following steps that annealing is conducted, specifically, a wirerod is heated to 500-700 DEG C, heating lasts for 50-60 min, and then the wire rod is cooled slowly so that the crystalline structure can be adjusted, the hardness can be reduced, and the room temperature machinability of the wire cod can be improved; pickling is conducted; drawing is conducted, specifically, the wire rod is subjected to cold drawing to the required wire diameter through a drawing machine after pickling, and a full-thread hexagonal socket head cap screw wire is distinguished form a semi-thread hexagonal socket head cap screw wire; forming machine adjusting is conducted; forming is conducted, thread rolling is conducted; and treatment is conducted after thread rolling. The method has the beneficial effects that by distinguishing the wires used by full-thread and semi-thread hexagonal socket head cap screws, the equipment debugging steps are optimized, the equipment debugging difficulty is lowered, the product production stability is improved, the product debugging difficulty and cost are reduced, and the whole product quality is improved.

Description

technical field [0001] The invention relates to a screw production process method, in particular to a cup head screw production process method, which belongs to the technical field of cup head screw production and application. Background technique [0002] A screw is a tool that uses the physical and mathematical principles of the oblique circular rotation and friction of the object to fasten the parts of the object step by step; the screw is a common term for fasteners, a daily colloquial language; the screw is an indispensable part of daily life. industrial necessities. [0003] In the past, the cylindrical head socket head cap screws with full half teeth were produced with the same wire material, which could easily lead to inconsistent feeding lengths of the head forming molds, resulting in unstable head forming, and easily causing the support surface under the head to fail to meet the standard requirements. The thickness of the head is too poor, and the appearance is no...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 刘超军
Owner 鹏驰五金制品(昆山)有限公司