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Roller sleeve of a roller press and manufacturing method thereof

A manufacturing method and technology of roller presses, applied in the field of roller presses, can solve problems affecting production efficiency and operating costs, prone to cracks in the surface surfacing layer, and affecting the use efficiency of roller presses, etc., to achieve high toughness and hardness High and long service life effect

Active Publication Date: 2021-01-08
SINOSTEEL XINGTAI MACHINERY & MILL ROLL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the repeated cutting and wear of the roller sleeve by the material during rolling and crushing, and the periodic alternating pressure and repeated wear caused by the huge pressure in the work, the surface of the roller sleeve will produce grooves and convex ribs, and the surface surfacing layer is very easy to appear. Cracks and meat loss will lead to faster parts damage, short service life, multiple surfacing welding repairs, longer surfacing welding cycles, more welding rods and other materials required for surfacing welding, and higher surfacing welding costs. Also limited by many factors such as the production site, it is difficult to meet the standard requirements for surfacing welding, which seriously affects the use efficiency of the roller press, affects production efficiency and operating costs

Method used

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  • Roller sleeve of a roller press and manufacturing method thereof
  • Roller sleeve of a roller press and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] A roller press roller sleeve, the roller sleeve includes an outer working layer, an inner core, and a transition layer between the working layer and the core; the working layer is made of high-speed steel, and the transition layer is made of It is semi-steel, and the material of the core is medium carbon alloy steel.

[0058] The chemical composition of the working layer and the mass percentage of each composition are C 0.8%, Si 0.3%, Mn 0.1%, Cr 6%, W 3%, V 8%, Ni 0.6%, Mo 5%. The chemical composition of the transition layer and the mass percentage of each composition are C1.2%, Si 1.8%, Mn 0.5%, Cr 1.2%, V 0.1%, Ni 1.0%, Mo 0.2%. The chemical composition of the core and the mass percentage of each composition are C 0.25%, Si 0.6%, Mn 0.6%, Cr 0.5%, V 0.1%, Ni 1.0%, Mo 0.2%.

[0059] A method for preparing the roller sleeve of the above-mentioned roller press, comprising the following processes:

[0060] A. molten steel smelting

[0061] A1. According to the requir...

Embodiment 2

[0075] A roller press roller sleeve, the roller sleeve includes an outer working layer, an inner core, and a transition layer between the working layer and the core; the working layer is made of high-speed steel, and the transition layer is made of It is semi-steel, and the material of the core is medium carbon alloy steel.

[0076] The chemical composition of the working layer and the mass percentage of each composition are C 2.2%, Si 0.1%, Mn 0.2%, Cr 4%, W 5%, V 4%, Ni 1.5%, Mo 3%. The chemical composition of the transition layer and the mass percentage of each composition are C2.0%, Si 0.8%, Mn 1.0%, Cr 0.6%, V 0.2%, Ni 0.4%, Mo 0.6%. The chemical composition of the core and the mass percentage of each composition are C 0.50%, Si 0.2%, Mn 1.0%, Cr 0.3%, V 0.3%, Ni 0.4%, Mo0.6%.

[0077] A method for preparing the roller sleeve of the above-mentioned roller press, comprising the following processes:

[0078] A. molten steel smelting

[0079] A1. According to the requireme...

Embodiment 3

[0093] A roller press roller sleeve, the roller sleeve includes an outer working layer, an inner core, and a transition layer between the working layer and the core; the working layer is made of high-speed steel, and the transition layer is made of It is semi-steel, and the material of the core is medium carbon alloy steel.

[0094] The chemical composition of the working layer and the mass percentage of each composition are C 1.5%, Si 0.2%, Mn 0.15%, Cr 5%, W 4%, V 6%, Ni 1.1%, Mo 4%. The chemical composition of the transition layer and the mass percentage of each composition are C1.6%, Si 1.2%, Mn 0.8%, Cr 0.9%, V 0.15%, Ni 0.7%, Mo 0.4%. The chemical composition of the core and the mass percentage of each composition are C 0.35%, Si 0.4%, Mn 0.8%, Cr 0.4%, V 0.2%, Ni 0.7%, and Mo 0.4%.

[0095] A method for preparing the roller sleeve of the above-mentioned roller press, comprising the following processes:

[0096] A. molten steel smelting

[0097] A1. According to the ...

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Abstract

The invention discloses a roller sleeve of a roller press and a preparation method of the roller sleeve, and belongs to the technical field of roller press machines. The roller sleeve comprises an outer working layer, an inner core part and a transition layer located between the working layer and the core part. The working layer is made of high-speed steel, the transition layer is made of semisteel, and the core part is made of medium-carbon alloy steel. According to the roller sleeve, the working layer of the roller sleeve of the roller press is high in hardness and high in wear resistance, and the phenomenon of cracking and cracking after being used on a machine is avoided; the strength of the core part is high, and the toughness is high, the service life of the roller sleeve is long, and all parts of the roller sleeve are tightly combined; and in addition, the preparation method has the advantages of being high in material utilization rate and low in comprehensive cost.

Description

technical field [0001] The invention relates to a roller cover, in particular to a roller press roller cover in the cement industry, and belongs to the technical field of roller presses. Background technique [0002] In the mining cement industry, the preparation of cement is inseparable from the shaft of a large roller press, and the main material of cement is prepared by occlusal crushing and mixing of the roller press shaft. Among them, limestone, steel slag, slag, gypsum, etc. in the main cement materials are very hard, which can easily cause damage to the roller press shaft; secondly, when crushing limestone, steel slag, slag and other materials, the force on the roller press shaft is also different. , but when the material is a mixed material, the force on each part of the roller press shaft is not uniform, which may easily lead to different degrees of damage to different parts of the roller press shaft. [0003] At present, the roll sleeves of the roller press are ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D13/02B22D19/16C21C1/08C21C7/06C21D1/18C21D1/30C21D5/00C21D6/00C21D9/08C22C33/06C22C33/08C22C37/08C22C37/10C22C38/02C22C38/04C22C38/34C22C38/44C22C38/46
CPCB22D13/02B22D19/16C21C1/08C21C7/0006C21C7/06C21D1/18C21D1/30C21D5/00C21D6/004C21D6/005C21D6/008C21D9/08C22C33/06C22C33/08C22C37/08C22C37/10C22C38/02C22C38/04C22C38/34C22C38/44C22C38/46Y02P10/20
Inventor 郭华楼白思诺胡志刚岳强王保宏
Owner SINOSTEEL XINGTAI MACHINERY & MILL ROLL
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