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Novel wear-resistant superhard metallurgical frequency conversion roller structure and manufacturing process of frequency conversion roller

A manufacturing process and roll structure technology, applied in metal material coating process, metal rolling, manufacturing tools, etc., can solve problems such as unfavorable long-term use, affecting the service life of the motor, affecting production efficiency, etc., to extend the working life and improve The effect of long service life and good oxidation resistance

Pending Publication Date: 2022-03-25
马鞍山市恒泰重工机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of roller is not conducive to long-term use in actual use. Generally, the life of the roller is about three months to half a year. The specific amount of steel depends on the amount of steel. The frequent replacement of the frequency conversion roller makes the motor shaft loose, which greatly affects the service life of the motor. Also affects production efficiency

Method used

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  • Novel wear-resistant superhard metallurgical frequency conversion roller structure and manufacturing process of frequency conversion roller
  • Novel wear-resistant superhard metallurgical frequency conversion roller structure and manufacturing process of frequency conversion roller
  • Novel wear-resistant superhard metallurgical frequency conversion roller structure and manufacturing process of frequency conversion roller

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: as Figure 1 to Figure 3 As shown, a new type of wear-resistant superhard metallurgical frequency conversion roller structure, including a roller base; inside the roller base, there are multiple fan ribs distributed in the circumferential direction at equal intervals. When used with a variable frequency motor, driven by the variable frequency motor, the roller base can be rotated at high speed, and the bearing will be blown by the action of the air blade ribs, and at the same time, the high temperature generated during its own conveying process can be conveyed to the outside, greatly improving To improve the service life of the frequency conversion roller, the outer surface of the roller base is provided with a spiral roughening structure. After the spiral roughening of the surface of the roller base, the contact area with the composite coating increases, and the two can be effectively combined to ensure that both The bonding strength between them; the out...

Embodiment 2

[0042] Embodiment 2: The components of the alloy fusion layer include by weight: 0.8 parts of C, 15 parts of Cr, 3.0 parts of B, 5.0 parts of Si, 13 parts of Fe, the balance being Ni and trace residual impurities, Calculated according to REC=(B+Si) / 5(C+Cr)+Cr / 6Ni, the chemical composition satisfies 0.14≤REC≤0.15; wherein, the composition of the thermal barrier composite layer includes by weight: 0.50 parts of C, 17 parts of Cr, 3.0 parts of B, 5.0 parts of Si, 15 parts of Fe, 3.4 parts of Co, the balance is Ni and trace residual impurities, according to REC=(B+Si) / 5(C+Cr)+ Calculated by (Cr+Co) / 6(Ni+Co)+Co / 8(Ni+Co), the chemical composition satisfies 0.14≤REC≤0.16; wherein, the composition of the surface working layer includes by weight: 2.1 parts of C , 12 parts of Cr, 3.9 parts of B, 3.5 parts of Si, 14 parts of Fe, 37 parts of W, the balance being Ni and trace residual impurities, according to REC=(B+Si) / 5(C+Cr)+ Calculated by (Cr+W) / 6(Ni+W)+W / 12(Ni+W), the chemical compos...

Embodiment 3

[0043] Embodiment 3: The components of the alloy fusion layer include by weight: 1.0 parts of C, 16 parts of Cr, 3.8 parts of B, 4.2 parts of Si, 15 parts of Fe, and the balance is Ni and trace residual impurities, Calculated according to REC=(B+Si) / 5(C+Cr)+Cr / 6Ni, the chemical composition satisfies 0.11≤REC≤0.14; wherein, the composition of the thermal barrier composite layer includes by weight: 0.65 parts of C, 15 parts of Cr, 3.8 parts of B, 3.5 parts of Si, 16 parts of Fe, 2.6 parts of Co, the balance is Ni and trace residual impurities, according to REC=(B+Si) / 5(C+Cr)+ Calculated by (Cr+Co) / 6(Ni+Co)+Co / 8(Ni+Co), the chemical composition satisfies 0.15≤REC≤0.16; wherein, the composition of the surface working layer includes by weight: 2.3 parts of C , 10 parts of Cr, 3.6 parts of B, 3.7 parts of Si, 15 parts of Fe, 33 parts of W, the balance being Ni and trace residual impurities, according to REC=(B+Si) / 5(C+Cr)+ Calculated by (Cr+W) / 6(Ni+W)+W / 12(Ni+W), the chemical compo...

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Abstract

The invention discloses a novel wear-resistant superhard metallurgical variable-frequency roller structure and a production process, and belongs to the field of metallurgical rollers for rolled steel conveying. Comprising a roller base body; a plurality of fan blade ribs are circumferentially distributed in the roller base body at equal intervals, the fan blade ribs are arranged in the axial direction of the roller base body in a vortex mode, a composite coating is arranged on the outer side face of the roller base body, and an alloy fusion layer, a thermal barrier composite layer and a surface working layer are sequentially arranged on the composite coating from inside to outside. A composite coating is additionally arranged on the surface of the frequency conversion roller according to needs, and if smooth spraying is not beneficial to combination with the surface coating, the surface of a roller base body is modified as follows: a spiral coarsening structure is arranged on the outer side face of the roller base body. After spiral roughening treatment, the contact area between the roller base body and the composite coating is increased, the roller base body and the composite coating can be effectively combined, and the bonding strength between the roller base body and the composite coating is guaranteed.

Description

technical field [0001] The invention relates to the technical field of metallurgical rollers for steel rolling and conveying, in particular to the structure of a novel wear-resistant superhard metallurgical variable frequency roller and the manufacturing process of the variable frequency roller. Background technique [0002] The existing frequency conversion rollers at home and abroad are all made of cast iron. Due to their frequent use, the roller surface will be worn out by the steel after more than one week of use, which will affect the transmission and cause quality problems such as scratches and pits on the product surface. The rollers must be replaced in time, and the tapping temperature is high and the rollers need to adapt to a wider temperature range, and also need to have corrosion resistance, high temperature resistance, impact resistance and other properties. Due to the frequent replacement of the frequency conversion roller, the motor shaft is loosened, which gr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B39/02C23C4/129C23C4/06C22C19/05C22C30/00
CPCB21B39/02C23C4/129C23C4/06C22C19/058C22C30/00
Inventor 陈道龙陈治鹏陈楠戴伏剑周俊立张万春张明兰
Owner 马鞍山市恒泰重工机械有限公司
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