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Axle bush and axle sleeve

A technology of bearing bushes and bushings, applied in the field of hot-dip galvanizing equipment, can solve the problems of iron-based materials being not resistant to wear, short service life, and not resistant to wear, and achieve good thermal fatigue resistance, improved service life, Effect of low thermal expansion coefficient

Inactive Publication Date: 2011-04-13
PANGANG GROUP VANADIUM TITANIUM & RESOURCES +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The iron-based material is not wear-resistant, the service life is short, the wear surface is rough, and there are deep grooves; the ceramic material is easy to cause cracks due to impact during use, and the use is unstable; wear and tear

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The bearing shell and bushing matrix of the sinking roller and the stabilizing roller are made of 00Cr17Ni14Mo2 stainless steel, and its chemical composition is C≤0.03wt%, Cr 16wt%~18wt%, Ni 10wt%~14wt%, Mo 2.00wt%~3.00wt%, Mn ≤2.00wt%, Si≤1.00wt%; the working surface layers of the bearing pads and bushings of the sinking roll and the stabilizing roll are cobalt-based alloys, and the composition of the cobalt-based alloys is: Cr 25wt%, Ni 5wt%, W 3wt%, Mo 3wt% %, V 0.1wt%, Ti 0.1wt%, C 0.6wt%, Fe 6wt%, Si 0.5wt%, Mn 0.3wt%, Al 0.5wt%, Nb 1.5wt%, P<0.07wt%, S<0.07 wt%, the rest is Co.

[0044] The bearing bush and the axle sleeve of embodiment 1 and the bearing bush and the axle sleeve of the prior art (the bearing bush and the axle sleeve composition of the prior art are as follows: C 0.119wt%, Si 0.52wt%, Co 0.10wt%, Cr 15wt%, Mn 0.94wt%, Ni 9.6wt%, Cu 0.23wt%, Mo 2.1wt%, the rest are Fe and impurity elements). When used in the same unit, the usable time of the beari...

Embodiment 2

[0046] The bearing shell and bushing matrix of sinking roller and stabilizing roller are made of 1Cr17Mo ferritic heat-resistant stainless steel, and its chemical composition is C≤0.12wt%, Cr 16wt%~18wt%, Mo 0.75wt%~1.25wt%, Mn≤0.8 wt%, Si≤0.8wt%; the working surface layers of bearing pads and bushings of sinking rolls and stabilizing rolls are cobalt-based alloys, and the composition of cobalt-based alloys is: Cr 20wt%, Ni 3wt%, W 5wt%, Mo 2wt%, V 0.2wt%, Ti 0.2wt%, C 0.6wt%, Fe 12wt%, Al 0.5wt%, Mn 0.7wt%, Nb 1.0wt%, Si0.4wt%, P<0.07wt%, S<0.07wt% , and the rest are Co.

[0047] Bearing pad and shaft sleeve of embodiment 2 and prior art bearing pad and shaft sleeve (the components of bearing pad and shaft sleeve of prior art are as follows: C 0.176wt%, Si 0.53wt%, Co 0.41wt%, Cr 16wt%, Mn 0.87wt%, Ni 10wt%, Cu 0.19wt%, Mo 1.8wt%, the rest are Fe and impurity elements). When used in the same unit, the usable time of the bearing pad and bushing of this embodiment is more tha...

Embodiment 3

[0049] The bearing shell and bushing matrix of sinking roller and stabilizing roller is austenitic-ferritic duplex stainless steel 0Cr18Ni9Cu3, and its chemical composition is C≤0.08wt%, Si≤1.00wt%, Mn≤2.00wt%, P≤0.035wt% %, S≤0.030wt%, Ni 8.50wt%~10.50wt%, Cr 17.00wt%~19.00wt%, Cu 3.00wt%~4.00wt%; the working surface layer of the bearing bush and bushing of sinking roll and stabilizing roll is cobalt Cobalt-based alloy, the composition of cobalt-based alloy is: Cr 26wt%, Ni 3wt%, W 5wt%, Mo 2wt%, V 0.2wt%, Ti 0.2wt%, C 1.5wt%, Fe 12wt%, Al 0.8wt%, Mn 0.7wt%, Nb 1.0wt%, Si 1.0wt%, P<0.07wt%, S<0.07wt%, and the rest is Co.

[0050] The bearing bush and the axle sleeve of embodiment 3 and the bearing bush and the axle sleeve of the prior art (the bearing bush and the axle sleeve composition of the prior art are as follows: C 0.258wt%, Si 0.69wt%, W 0.92wt%, Co 0.26wt%, Cr 18wt%, Mn 1.0wt%, Ni 8.7wt%, Cu 0.37wt%, Mo 1.8wt%, and the rest are Fe and impurity elements). When used ...

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PUM

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Abstract

The invention discloses an axle bush and an axle sleeve. Both the axle bush and the axle sleeve comprise a matrix and a working surface layer, wherein the working surface layer is made of a cobalt-base alloy, and the cobalt-base alloy comprises the following components in percentage by weight: 10 to 40 percent of Cr, 0.1 to 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, 0.01 to 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 ofSi, and the balance of Co. The axle bush and the axle sleeve are operated under the conditions of hot-dip aluminum-zinc liquid, hot-dip zinc liquid, hot-dip zinc aluminum, hot-dip pure aluminum liquid and the like, and have good heat-resistant fatigue properties such as good durability, enough strength and elongation, low thermal expansion coefficient, low elastic modulus and the like so as to improve the service properties and prolong the service life.

Description

technical field [0001] The present invention relates to a kind of equipment for hot-dip plating, more particularly, relates to a kind of bearing shell and bushing of sinking roll and stabilizing roll. Background technique [0002] Due to its high production efficiency, the hot-dip plating process has been widely used in metallurgy and coated steel plate industries. Hot-dip galvanizing process includes hot-dip galvanized (GL), hot-dip pure zinc (GI), hot-dip galvanized aluminum, hot-dip pure aluminum, etc. [0003] Taking the hot-dip aluminum-zinc process as an example, the hot-dip aluminum-zinc coating roller assembly in the aluminum-zinc pot is composed of a sinking roller, a front stabilizing roller and a rear stabilizing roller, which are respectively installed on relatively independent crank arms, and are all immersed in the molten aluminum-zinc liquid (610±5°C), it guides, maintains and adjusts the spacing and stabilization of the steel strip between the air knives. T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C19/07F16C33/06
Inventor 贺同正
Owner PANGANG GROUP VANADIUM TITANIUM & RESOURCES
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