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Axle bush and sleeve

A technology for bushings and bushings, which is applied in the field of metallurgical industry and hot-coating equipment, can solve the problems of rough wear surface, short service life, and wear-resistant iron-based materials, so as to improve the service life, stability and reliability, and reduce the Thermal expansion coefficient, wear surface smoothing effect

Inactive Publication Date: 2011-01-26
PANGANG GROUP VANADIUM TITANIUM & RESOURCES +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, iron-based materials are not wear-resistant, have a short service life, rough wear surfaces, and deep grooves; ceramic materials are prone to cracks caused by impact during use, and their service life is unstable; limited thickness

Method used

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  • Axle bush and sleeve
  • Axle bush and sleeve
  • Axle bush and sleeve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The components of bearing bush and sleeve are by weight: Si 0.5%, Mn 0.3%, C 0.6%, Al 0.5%, P<0.07%, S<0.07%, V 0.1%, Ti 0.1%, Cr 25%, Fe 6% , Ni 5%, Nb 1.5%, W 3%, Mo 3%, and the rest is Co. The service time of the bearing pad and sleeve in the prior art is obviously lower than that of the bearing pad and sleeve of the present invention in the same unit, and is less than 1 / 3 of the service time of the bearing pad and sleeve of the present invention.

Embodiment 2

[0035] The composition of bearing pad and sleeve is: Al 0.5%, Si 0.4%, Mn 0.7%, C 0.6%, Cr 20%, Fe 12%, Ni 3%, Nb 1.0%, W 5%, Mo 2%, V 0.2%, Ti 0.2%, the rest is Co. The service time of the bearing pad and sleeve in the prior art is obviously lower than that of the bearing pad and sleeve of the present invention in the same unit, and is less than 1 / 3 of the service time of the bearing pad and sleeve of the present invention.

Embodiment 3

[0037] The components of the bushing and sleeve are: Al 0.8%, Si 1.0%, C 1.5%, Mn 0.7%, Cr 26%, Fe 12%, Ni 3%, Nb 1.0%, W 5%, Mo 2%, V 0.2%, Ti 0.2%, the rest is Co. The service time of the bearing pad and sleeve in the prior art is obviously lower than that of the bearing pad and sleeve of the present invention in the same unit, and is less than 1 / 3 of the service time of the bearing pad and sleeve of the present invention.

[0038] Figure 5A A photograph showing the corrosion resistance of a bearing pad bushing according to the invention. Figure 5A It is the appearance of the interface of the cobalt-based alloy according to the present invention after being soaked in the hot-dip galvalume pot for 58 days, wherein, the left side is the cobalt-based alloy, and the right side is the aluminum-zinc liquid. from Figure 5A It can be seen that the tool marks still exist and the interface is clear.

[0039] Figure 5BA photograph showing the corrosion resistance of a bearing ...

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PUM

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Abstract

The invention discloses axle bush and sleeve, which are characterized in that the shaft bush and the shaft sleeve are made of a cobalt-base alloy, wherein the cobalt-base alloy comprises the following components in percentage by weight: 10 to 40 percent of Cr, not more than 15 percent of Ni, 0.1 to 15 percent of W, 0.1 to 10 percent of Mo, 0.01 to 5.0 percent of V, 0.01 to 5.0 percent of Ti, 0.01to 1.5 percent of C, 0.01 to 20 percent of Fe, 0.01 to 5.0 percent of Al, 0.1 to 3.0 percent of Mn, 0.01 to 5.0 percent of Nb, 0.1 to 3.0 percent of Si, and the balance of Co.

Description

technical field [0001] The invention relates to metallurgical industry and hot-coating equipment, in particular to a bearing bush for a sinking roll and a stabilizing roll. Background technique [0002] Due to its high production efficiency, hot-coating has been widely used in metallurgy and coated steel plate industries. But at present, the used bearing pads and sleeves of sinking rolls and stabilizing rolls mostly adopt iron-based materials, ceramic materials or surface sprayed materials. However, iron-based materials are not wear-resistant, have a short service life, rough wear surfaces, and deep grooves; ceramic materials are prone to cracks caused by impact during use, and their service life is unstable; Thickness is limited. SUMMARY OF THE INVENTION [0003] The invention provides a bearing pad and bush, which is made of a cobalt-based alloy, and the cobalt-based alloy contains by weight: 10%-40% of Cr, 0.1%-15% of Ni, 0.1%-15% of W , 0.1% to 10% Mo, 0.01% to 5.0%...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C33/06F16C33/08C22C19/07C23C2/00
Inventor 贺同正许光奎于丹邹桂明余文富林伟许静
Owner PANGANG GROUP VANADIUM TITANIUM & RESOURCES
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