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Ultrafast cooling device for large rolled H-shaped steel

An ultra-rapid cooling, H-beam technology, applied in the direction of metal rolling, metal rolling, metal processing equipment, etc., can solve the problems of increased production cost, uneven structure, inability to meet users, etc., to improve economic benefits, reduce The effect of improving production cost and comprehensive mechanical properties

Active Publication Date: 2010-08-18
NORTHEASTERN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to produce high-strength H-shaped steel, the method of adding alloy elements is generally used at present, which greatly increases the production cost; at the same time, the entire section of the H-shaped steel often appears inhomogeneous in the rolling process, and finally the comprehensive mechanical properties of the H-shaped steel Can not meet the production standards, can not meet the requirements of users

Method used

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  • Ultrafast cooling device for large rolled H-shaped steel
  • Ultrafast cooling device for large rolled H-shaped steel
  • Ultrafast cooling device for large rolled H-shaped steel

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Embodiment

[0033] A set of ultra-rapid cooling device of the present invention was installed after the H-shaped steel finished universal rolling mill in a certain factory, and its installation position is as follows figure 1As shown, the ultra-rapid cooling device adopts water spray cooling method. The finished size of the rolled H-shaped steel is HM390×300×16×10, and the steel type is Q345B. The billet is first rolled for 5 passes in the two-roll billet mill, then rolled for 5 passes in the universal roughing mill unit in the form of UEU, and finally rolled for 1 pass in the finished universal rolling mill.

[0034] The H-shaped steel enters the ultra-rapid cooling device of the present invention to cool after the finished product universal rolling mill is rolled, and each group of upper nozzle units in the ultra-rapid cooling device has two nozzles to cool the upper R angle and the upper web of the H-shaped steel respectively. The lower nozzle unit of the group has three nozzles, resp...

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Abstract

The invention relates to an ultrafast cooling device for large rolled H-shaped steel, belonging to the technical field of production control and cooling for high-performance H-shaped steel.The invention provides a ultrafast cooling device for large rolled H-shaped steel, which can enable the H-shaped steel to obtain good texture and mechanical property.The cooling device comprises a rail support of a transverse rail, which is fixed at the upper part of the device, a cooling unit provided with a cooling rack, which is arranged on the transverse rail and a transverse roller wheel which is arranged below the cooling rack; wherein the cooling unit comprises a lateral nozzle unit, an upper nozzle unit and a side board provided with a groove; the side board is arranged on the cooling rack, a lateral nozzle tank body is fixed outside the side board; and an upper nozzle unit is arranged above the inside of the side board, a lower nozzle unit is arranged on a motor base of a conveying rail, the lower nozzle unit is connected with a water supply pipe; an electromagnetic flowmeter, a pressure sensor and a pneumatic open and close valve are respectively on the water supply pipe and thermodetectors are respectively arranged at the entrance and exit of the ultrafast cooling device.

Description

Technical field: [0001] The invention belongs to the technical field of production control and cooling of high-performance H-shaped steel for structures, and in particular relates to an ultra-fast cooling device for large-scale H-shaped steel after rolling. Background technique: [0002] H-shaped steel is an ideal economical cross-section profile. Compared with ordinary I-shaped steel, it has the advantages of light weight, good performance, multiple specifications, economical and reasonable cross-section, convenient use and saving metal materials. It is widely used in high-rise buildings, Machinery manufacturing, large workshops, power station construction, airports, port terminals, tunnels, underground railways, bridges, ships, transport vehicles, highways, tunnel support engineering, offshore oil platforms, simple garages, seaside holiday houses and various engineering structures . [0003] H-shaped steel has the advantages of parallel inner surfaces of the two flanges, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B45/02
Inventor 赵宪明程鼎吴迪苏世怀王国栋孙维彭良贵袁龙兵高俊国叶光平郭飞吴结才
Owner NORTHEASTERN UNIV
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