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Cold rolling ribbed bar continuous production device

A technology of cold-rolled ribbed steel bars and production equipment, which is applied in metal rolling, metal rolling, metal rolling stands, etc., can solve the problems of low elongation and restrict the use of cold-rolled steel bars, and achieve improved plasticity and Toughness, removal of residual stress, and high production efficiency

Active Publication Date: 2009-03-18
ANYANG HELI CHUANGKE METALLURGY NEW TECH RES & DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two production methods have been used separately for many years, and the common weakness is: although the strength of steel bars after cold rolling is high, the elongation is low, only about 5%, which restricts the use of cold rolled steel bars

Method used

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  • Cold rolling ribbed bar continuous production device
  • Cold rolling ribbed bar continuous production device
  • Cold rolling ribbed bar continuous production device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0021] As shown in Figure 1, it is a preferred embodiment of a continuous production device for cold-rolled ribbed steel bars, including:

[0022] A cold rolling mill consisting of a passive rolling mill 100 and an active rolling mill 200 is used for cold rolling and reducing steel bar raw materials and forming transverse ribs on the surface;

[0023] The heat treatment device 300 is installed at the downstream position of the cold rolling mill, and is used for on-line heating the ribbed steel bar processed by the cold rolling mill to the annealing temperature, and performing annealing heat treatment to increase the elongation of the steel bar;

[0024] CNC flying shear 400, used for precise cut-to-length steel bars produced according to needs;

[0025] The receiving device includes a first coiler 500 and a second coiler 600. The two coilers can alternately perform coiling and receiving for the production of wire rod and steel bar products; , for receiving straight steel bars...

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Abstract

The invention discloses a continuous production device of a cold rolled ribbed reinforcing bar, which comprises a cold rolling unit used for carrying out cold rolling reduction to the raw material of the bars and forming cross ribs, a heat processing device which is arranged in the downstream of the cold rolling unit and used for carrying out annealing heat treatment to the ribbed reinforcing bars processed by the cold rolling unit on a production line so as to improve the elongation rate of the reinforcing bars; a digital control flying shear is also arranged at the downstream of a heat treatment device and is used for cutting the reinforcing bar on the production line according to specified size. The continuous production device of the cold rolled ribbed reinforcing bar of the invention has ideal elongation rate as well as high strength of the reinforcing steel bars; in addition, cold rolling and heat treatment are carried out continuously on the production line, thus having simple operation and high production efficiency.

Description

technical field [0001] The invention relates to a steel bar production device, in particular to a cold-rolled ribbed steel bar production device. Background technique [0002] Cold-rolled ribbed steel bar is a new type of construction steel product that developed rapidly at home and abroad in the late 20th century. Because the cold-rolled ribbed steel bar has the characteristics of high strength, good plasticity, easy processing, strong grip with cement, and can save a lot of steel, it has been valued by the relevant departments of the state, and it is clearly stipulated that it will gradually replace the hot-rolled grade I smooth round steel bar and eliminate it. Low carbon steel cold drawn wire. [0003] At present, most of the cold-rolled ribbed steel bars produced in China are steel bars that are cold-rolled into three crescent-shaped transverse ribs on the surface after cold-rolling reduction in passive rolling mills. Another production method is to use active rolling...

Claims

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Application Information

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IPC IPC(8): B23P23/06C21D9/52C21D1/26B21B1/16B21B13/00B21B31/16B21B39/00
Inventor 翟文翟武
Owner ANYANG HELI CHUANGKE METALLURGY NEW TECH RES & DEV