Bar Controlled Rolling Controlled Cooling Device and Technology

A technology of controlled rolling and controlled cooling, bar, applied in workpiece cooling devices, manufacturing tools, metal rolling, etc., can solve the problems of tempered martensite easily generated on the surface of steel bars, inaccurate control of cooling temperature, etc., to achieve high quality And the best low cost, convenient and practical replacement, simple and convenient installation

Active Publication Date: 2022-06-03
中冶检测认证有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the influence of the on-site environment, the original process generally only detects the temperature of the cooling bed on the finished product. During the cooling process, the cooling temperature is not controlled accurately, and tempered martensite is prone to occur on the surface of the steel bar.

Method used

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  • Bar Controlled Rolling Controlled Cooling Device and Technology
  • Bar Controlled Rolling Controlled Cooling Device and Technology
  • Bar Controlled Rolling Controlled Cooling Device and Technology

Examples

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Embodiment Construction

[0028] Below in conjunction with the accompanying drawings, the specific embodiments of the bar controlled rolling and controlled cooling device and process of the present invention are described in detail. Book

[0032] The cooler 22 is composed of a water inlet section 221, a turbulent flow pipe 222 and a water outlet section 223. Referring to Figure 4, the water inlet section 221 adopts screw

[0034] Referring specifically to FIG. 5, the slow cooling tube group 23 has a plurality of air jets 28 arranged along the rolling linear direction. jet 28

[0036] The front guide 231 and the rear guide 233 are respectively detachable through the fixing part and the jet base 232 through bolts

[0039] The water intercepting nozzles 227 and the water catching nozzles 242 described above in the present invention can all use the jets described above.

[0042] Under specific circumstances, the fixed thermometer is fixed with the frame 101 through the fixed support 112. Mobile Thermometer ...

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Abstract

The invention discloses a bar material controlled rolling and controlled cooling device and technology. The device is arranged successively along the rolling direction with a heating furnace, a rough rolling unit, No. 1 flying shear, an intermediate rolling unit, a pre-piercing water cooling section, and a Flying shears, finishing rolling unit, main water cooling section, No. 3 flying shear and cooling bed; among them, the main water cooling section includes the water tank body, and the inlet guide, cooler, and slow cooling are arranged in the water tank body in sequence according to the rolling direction. Tube group and outlet guide, wherein the water tank body has a closed shell, and the bottom is provided with water and air discharge ports; among them, a thermometer is installed at the outlet of the main water-through cooling section, and the measured temperature signal is fed back to the main water-through cooling section , used to adjust the cooling process parameters of the main water-through cooling section to ensure that the rods meet the temperature requirements for entering the cooling bed.

Description

Controlled rolling and controlled cooling device and process for bar technical field [0001] The present invention relates to the field of steel production and processing, in particular to a bar controlled rolling and controlled cooling process device. Background technique Due to the requirement to the metallographic structure of the bar in the new national standard GB / T 1499.2-2018, on-line controlled rolling and controlled cooling are The temperature requirements are relatively high. If the temperature is too high, the mechanical properties of the product cannot meet the requirements, and can only be improved by adding alloys. If the temperature is too low, the base circle will easily generate martensite, so that the product cannot meet the new national standard. Therefore, precise control of the cooling temperature of the steel surface is required. The original equipment is easy to produce during the cooling process. A large amount of fog is generated, especially ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B37/74B21B45/02
CPCB21B37/74B21B45/0209B21B45/0215B21B2045/0212Y02P70/10
Inventor 张良进高晓丽王纪元陈昕陶军惠栋奚晓东赵英杰
Owner 中冶检测认证有限公司
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