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Hardware ball-head forming technique

A forming process and forming process technology, applied in metal rolling and other directions, can solve problems such as poor handling of loose structures, unstable mechanical properties of workpieces, and affecting product quality, so as to reduce rough turning processes and reduce mechanical dispersion , Improve the effect of mechanical properties

Inactive Publication Date: 2009-01-07
RUGAO DASHENG LINE EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The processing steps are complicated, and finishing can only be carried out after rough processing, and this processing procedure cannot well deal with the loose structure formed by the oxidation bubbles existing on the surface of the raw material, and the oxides, oxides, Fluids and other impurities make the mechanical properties of the workpiece unstable and affect product quality

Method used

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Examples

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Embodiment Construction

[0011] Select the round steel that meets the product to be pressed, and heat the round steel to 1050-1150°C. In this embodiment, it is heated to 1100°C, and then enters the cross wedge rolling mechanical channel, and rolls out a number of metal balls on the round steel by cross wedge rolling. head. The cross wedge rolling machine consists of two roller molds and a channel between the two roller molds. When the heated round steel enters the channel and moves circumferentially between the two roller molds, the round steel is rolled into a small-diameter multi-step finished product by the roller mold. When the round steel flows in the axial direction, due to the action of the roller mold, the coarse and uneven grains in the raw material are crushed, recrystallized under high temperature and heavy pressure, and become a finer uniform equiaxed crystal structure; the raw material Oxidation bubbles exist on the surface, and the loose structure is also compacted. At the same time, th...

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Abstract

The invention discloses a process for forming a hardware ball end. A hardware ball end cross wedge rolling forming process is added between the step of blanking round steel and cutting the length of a deviatoric plane, and the step of drilling a center hole. By using the cross wedge rolling forming process, a major diameter of a bar workpiece is heated instantaneously, entering a rolling mill in the axial direction, and is rolled and formed quickly for one step in two rolling dies. The process of the invention has the advantages of high production efficiency, high forming precision of rolled workpiece, thereby greatly saving hardware processing man-hours and raw materials.

Description

technical field [0001] The invention relates to a forming process of a metal ball head, in particular to a process for forming a metal ball head by cross-wedge rolling, which can reduce working procedures and stabilize product quality. Background technique [0002] At present, the ball head forming process of fittings, the ball head mainly adopts the round steel bar turning process, and the process flow is: round steel blanking——select the length from the plane, drill the center hole—rough turning and crimping the outer circle—rough turning Ball head—finish turning and crimping outer circle—finish turning ball head—drilling—galvanizing. The processing steps are complicated, and finishing can only be carried out after rough machining, and this processing procedure cannot well deal with the loose structure formed by the oxidation bubbles existing on the surface of the raw material, and the oxides, oxides, Fluids and other impurities make the mechanical properties of the workp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B21H1/00
Inventor 征大生
Owner RUGAO DASHENG LINE EQUIP
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