Production technology of helix rib steel wire

Abstract

The invention relates to a production technology of a helix rib steel wire, which comprises the following steps: paying off a steel wire by a paying-off machine; passing through a first group of tension pulleys; entering a helicoid to form helix; tempering in an intermediate frequency after being straightened by a straightener; cooling down; passing through a second group of tension pulleys; entering shears by traction; cutting and dividing into trays in the shears; and finally collecting wires into trays. Therefore, each performance index of the helix rib steel wire is improved, and the steel wire is provided with good linearity. Furthermore, the compression amount of helix forming is reduced; the accuracy of helix size is guaranteed; the weight per meter of steel wire meets normative requirement; and the loss of a helix model is greatly reduced.

Description

technical field [0001] The invention relates to a production process of spiral-rib steel wire, in particular to a production process of spiral-rib steel wire with double tensioning wheels + spiral forming stabilization heat treatment. Background technique [0002] At present, the traditional production process of spiral rib steel wire is to stabilize the production through large compression mold drawing + single tension wheel to form tension. The tension will decrease with the increase of the mold, and the tension cannot be controlled freely, resulting in the linearity of the steel wire. And the relaxation performance decreases; while increasing the amount of mold compression, it will cause large surface work hardening of the steel wire, and the plasticity index such as elongation will drop sharply, and the spiral geometric size of the steel wire or the steel wire meter weight often exceed the standard requirements, and more than 70% of domestic spiral ribs Steel wire produc...

AI Technical Summary

Problems solved by technology

[0002] At present, the traditional production process of spiral rib steel wire is to stabilize the production through large compression mold drawing + single tension wheel to form tension. The tension will decrease with the increase of the mold, and the tension cannot be controlled freely, resulting in the linearity of the steel wire. And the relaxation performance decreases; while increasing the amount of mold compression, it will cause large surface work hardening of the steel wire, and the plasticity index such as elongation will drop sharply, and the spiral geometric size of the steel wire or the steel wire meter weight often exceed the standard requirements, and more than 70% of domestic spiral ribs Steel wire products either cannot meet the requirements of geometric dimensions in national standards, or cannot meet the requirements of steel wire meter weight in national standards

Images