Improved type aluminum alloy profile steel finished product roller and manufacturing method thereof

A manufacturing method and chrome alloy technology, applied in metal rolling, metal rolling, rolls, etc., can solve the problem of less quality rolls

Pending Publication Date: 2020-10-20
常州市瑞宏轧辊有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many traditional roll materials used for rolling various types of steel at home and abroad, but due to the limitation of the rolling environment, there are relatively few high-quality rolls that fully meet the rolling needs.

Method used

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  • Improved type aluminum alloy profile steel finished product roller and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024]A manufacturing method of an improved chromium alloy section steel finished roll, comprising the following production steps: S1, configuration chemical composition: C: 0.45%; Si: 0.45%; Mn: 0.45%; P: 0.010%; S: 0.0:10% ; Cr: 5.50%; Ni: 0.50%; V: 0.50%; Nb: 0.15%; Re: 0.05%; Stir with an electromagnetic mixer for 3 minutes; refine after removing slag; heat up to 1550°C for secondary slagging; add 3 kg / ton of steel yttrium-based heavy rare earth molten steel modifier after slagging to remove impurity elements; Alloy 0.03% ton steel, tap after 3 minutes; blow argon gas into the ladle to let the micro-slag float up, stop blowing for 3 minutes, calm the molten steel for 6 minutes, and pour the steel temperature to the liquidus temperature +30°C; pouring in S2 adopts the top pouring process , after pouring, start the electromagnetic vibrator with a frequency of 60 times, so that the molten steel can increase the density during the sequential solidification process, refine the ...

Embodiment 2

[0026] A method for manufacturing an improved chromium alloy steel finished roll, comprising the following production steps: S1, configuration chemical composition: C: 0.60%; Si: 0.60%; Mn: 0.65%; P: 0.020%; S: 0.020%; Cr : 5.80%; Ni: 0.70%; V: 0.65%; Nb: 0.25%; Stir with an electromagnetic mixer for 4 minutes; refine after removing slag; heat up to 1560°C and then make a second slag; Aluminum alloyed with 0.04% ton steel, tapped after 5 minutes; argon gas was blown into the ladle to let the micro-slag float up, the blowing was stopped for 5 minutes, the molten steel was calmed for 8 minutes, and the steel temperature reached the liquidus temperature of 40°C for pouring; the pouring in S2 adopts the top pouring process, After pouring, start the electromagnetic vibrator with a frequency of 80 times to increase the density of the molten steel during the sequential solidification process, refine the crystal microstructure, and eliminate the loose area; S3, special heat treatment:...

Embodiment 3

[0028] A method for manufacturing an improved chromium alloy steel finished roll, comprising the following production steps: S1, configuration chemical composition: C: 0.75%; Si: 0.80%; Mn: 0.80%; P: 0.020%; S: 0.020%; Cr : 6.30%; Ni: 0.67%; V: 0.70%; Nb: 0.25%; Re: 0.0: 8%; S2, smelting and pouring: smelting pure molten steel, adding alloy when the steel temperature reaches 1500°C; Stir with an electromagnetic mixer for 5 minutes; refine after removing slag; heat up to 1570°C and then make a second slag; Aluminum alloyed with 0.05% ton steel, tapped after 10 minutes; argon gas was blown into the ladle to let the micro-slag float up, the blowing was stopped for 10 minutes, the molten steel was calmed for 10 minutes, and the steel temperature reached the liquidus temperature of 50°C for pouring; the pouring in S2 adopts the top pouring process, After pouring, start the electromagnetic vibrator with a frequency of 120 times to increase the density of the molten steel during the ...

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Abstract

The invention relates to the technical field of rollers, in particular to an improved type aluminum alloy profile steel finished product roller and a manufacturing method thereof. The improved type aluminum alloy profile steel finished product roller comprises an upper roller and a lower roller which are arranged in parallel, wherein at least one group of ring-shaped grooves is formed in the length direction of the upper roller; ring-shaped bulges are fixedly arranged on positions, opposite to the ring-shaped grooves, in the length direction of the lower roller; the ring-shaped bulges are embedded into the ring-shaped grooves; and spacing between the ring-shaped bulges and the ring-shaped grooves defines profile steel holes. According to the improved type aluminum alloy profile steel finished product roller and the manufacturing method thereof disclosed by the invention, the roller is good in wear resistance, is strong in impact toughness and crack resistance, and increases roller on-machine operation rolling amount by five times or more. The manufacturing method is reasonable in layout, is simple in process, can effectively guarantee use quality of the roller and the service life,and is widely popularized and used conveniently.

Description

technical field [0001] The invention relates to the technical field of rolls, in particular to an improved chromium alloy steel finished roll and a manufacturing method thereof. Background technique [0002] In recent years, the production of various types of steel in my country has developed rapidly, and the rolling output of various types of steel has exceeded the 100 million tons mark. In the production process of section steel rolling, the specification, shape, size, precision and surface finish of section steel products have always been the focus of strict control in the production process of section steel, especially for section steel with complex sections, there are many influencing factors to meet the above requirements, Such as rolling force, steel material, rigidity, process requirements, rolling environment, etc., as well as the comprehensive performance of the main rolling tools and rolls are closely related. At present, there are many traditional roll materials...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B27/02C22C38/02C22C38/04C22C38/46C22C38/48C22C33/04C21D1/78C21D9/38
CPCB21B27/02C21D1/785C21D9/38C22C33/04C22C38/002C22C38/02C22C38/04C22C38/46C22C38/48
Inventor 蒋卫平蒋志芳周青王亮钱秋虎
Owner 常州市瑞宏轧辊有限公司
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