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HW type steel horizontal roll collar heat treatment spray quenching device and heat treatment method thereof

A technology of horizontal rollers and section steel, applied in heat treatment furnaces, quenching devices, heat treatment equipment, etc., can solve the problem of low hardness of the side wall of the horizontal roller ring, and achieve the effect of improving overall versatility, uniform hardness, and uniform cooling

Active Publication Date: 2022-04-19
SINOSTEEL XINGTAI MACHINERY & MILL ROLL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of low hardness of the side wall of the HW-shaped steel horizontal roller ring, and to improve the overall strength, hardness, uniformity and wear resistance of the horizontal roller ring by using the heat treatment method and the heat treatment spray quenching device

Method used

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  • HW type steel horizontal roll collar heat treatment spray quenching device and heat treatment method thereof
  • HW type steel horizontal roll collar heat treatment spray quenching device and heat treatment method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The heat treatment process of Φ1400HW steel horizontal roller ring is as follows: a. First, put the HW steel horizontal roller ring into a high-temperature normalizing furnace and place it horizontally; b. Then start power supply and raise the temperature to 450°C, keep it for 10h, then raise the temperature to 960°C, and keep it for 18h ; c, HW-shaped steel horizontal roller ring is out of the furnace for normalizing, use a special spreader to place the HW-shaped steel horizontal roller ring on the rotating platform; d, quickly adjust the distance between the vertical nozzle and the outer circle 400mm, and the distance between the horizontal nozzle and the upper and lower end faces 150mm; e open Spray quenching devices such as high-pressure plunger pumps and rotating platforms are used for spray quenching. The spray quenching time is 38 minutes, and the surface temperature is lowered to 500°C; 28min, put into the furnace and temper; g, the tempering temperature is 540°C...

Embodiment 2

[0034] The heat treatment process of Φ1300HW steel horizontal roller ring is as follows: a. First, put the HW steel horizontal roller ring into a high-temperature normalizing furnace and place it horizontally; b. Then start power supply and raise the temperature to 450°C, keep it for 10h, then raise the temperature to 960°C, and keep it for 16h ; c. The HW-shaped steel horizontal roll ring is out of the furnace for normalizing, and the HW-shaped steel horizontal roll ring is placed on the rotating platform with a special spreader; d. Quickly adjust the vertical nozzle to 450mm from the outer circle, and the horizontal nozzle to 150mm from the upper and lower end faces; e open Spray quenching devices such as high-pressure plunger pumps and rotating platforms are used for spray quenching. The spray quenching time is 40 minutes, and the surface temperature is lowered to 500°C; 30min, put into the furnace and temper; g, the tempering temperature is 540°C, and the time is controlled...

Embodiment 3

[0036]The heat treatment process of Φ1600HW type steel horizontal roll ring is as follows: a. First, put the HW type steel horizontal roll ring into the high temperature normalizing furnace and place it horizontally; b. Then start power supply and raise the temperature to 450°C, keep it for 12h, then raise the temperature to 960°C, and keep it for 20h ; c, HW-shaped steel horizontal roller ring is out of the furnace for normalizing, use a special spreader to place the HW-shaped steel horizontal roller ring on the rotating platform; d, quickly adjust the distance between the vertical nozzle and the outer circle 300mm, and the distance between the horizontal nozzle and the upper and lower end faces 150mm; e open Spray quenching devices such as high-pressure plunger pumps and rotating platforms are used for spray quenching. The spray quenching time is 40 minutes, and the surface temperature is lowered to 500°C; 30min, put into the furnace and temper; g, the tempering temperature i...

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Abstract

The invention relates to the technical field of horizontal roll collar heat treatment, in particular to an HW type steel horizontal roll collar heat treatment spray quenching device and a heat treatment method thereof.The spray quenching device is characterized in that a motor 5 is electrically connected to the lower portion of a rotating platform 4, a horizontal roll collar 1 is placed on the upper surface of the rotating platform 4, and a plurality of movable spray pipes 2 are evenly distributed on the periphery of the horizontal roll collar 1; a plurality of atomizing nozzles 3 are mounted on the movable spray pipe 2; according to the spray quenching device in the horizontal roll collar heat treatment method, the overall strength, hardness, uniformity and wear resistance of the horizontal roll collar are improved.

Description

technical field [0001] The invention relates to the technical field of heat treatment of horizontal roll rings, in particular to a spray quenching device for heat treatment of HW-shaped steel horizontal roll rings and a heat treatment method thereof. Background technique [0002] Hot-rolled H-beams are divided into three types: wide-flange H-beams (HW), medium-flange H-beams (HM) and narrow flanges (HN). Among them, HW means that the height of H-shaped steel is basically equal to the width of the flange. Generally, the wider the flange, the greater the steel strength of the side items, and the strong bending resistance. It is mainly used for steel core columns in reinforced concrete frame structure columns, also known as stiff steel columns. , mainly used for columns in steel structures. However, the HW section steel needs to use a horizontal roll ring during the rolling process. Since the flange of the HW section steel is wider, the depth of the side wall is required to be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D1/667C21D9/40C21D1/28
CPCC21D1/667C21D9/40C21D1/28C21D9/0062Y02P10/20
Inventor 郭华楼白思诺王滟伟焦建波陈风海
Owner SINOSTEEL XINGTAI MACHINERY & MILL ROLL
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