Sink roller and stabilizing roller

A technology of sinking roller and stabilizing roller, applied in coating, metal material coating process, hot dip plating process, etc., can solve the problems of frequent replacement, non-dense, spray coating failure, etc., to reduce the number of processing and replacement, Ease of processing and manufacturing, and the effect of prolonging the use time

Inactive Publication Date: 2013-12-11
PANGANG GROUP VANADIUM TITANIUM & RESOURCES +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Specifically, Co-WC or MoB / CoCr-WC is generally sprayed on the roller surface as a corrosion-resistant and wear-resistant layer. Due to the material and spraying process, the corrosion-resistant and wear-resistant layer has certain defects such as cracks and lack of density. , and the penetration ability of the plating solution is strong, it is easy to penetrate through the sprayed coating and corrode the roller surface, causing the sprayed coating to fail, and the defects of the sprayed coating are also easy to stick slag
However, in the process of use, due to sticky slag and other reasons, it is easy to cause quality defects in the produced products, such as surface groove marks, uneven spangles, etc., resulting in unstable service life of the sinking roller and stabilizing roller after each repair. Frequent replacement and unstable product quality

Method used

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  • Sink roller and stabilizing roller
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  • Sink roller and stabilizing roller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The substrate of sinking roller and stabilizing roller is 00Cr17Ni14Mo2 stainless steel (equivalent to austenitic ultra-low carbon stainless steel SUS316L), and its chemical composition is C≤0.03wt%, Cr 16wt%~18wt%, Ni10wt%~14wt%, Mo 2.00wt% %~3.00wt%, Mn≤2.00wt%, Si≤1.00wt%; the roller cover is installed on the substrate, the material of the roll cover is cobalt-based alloy, and the composition of cobalt-based alloy is: Cr 25wt%, Ni 0.2wt% , W 15wt%, Mo 3wt%, V 0.01wt%, Ti 0.1wt%, C 0.3wt%, Fe 6wt%, Si 2.0wt%, Mn 3.0wt%, Al 5.0wt%, Nb 5.0wt%, P< 0.07wt%, S<0.07wt%, and the rest is Co. The roller sleeve and the substrate adopt clearance fit, the thickness of the roller sleeve is 29mm, and the roller sleeve and the substrate are installed on the substrate by shrink fit and interference fit.

[0037] The sinking roll and the stabilizing roll of embodiment 1 are used in the same unit as the sinking roll and the stabilizing roll of the prior art, and the result of use show...

Embodiment 2

[0039] The substrate of the sinking roller and the stabilizing roller is 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≤0.8wt%, Si ≤0.8wt%; the roller sleeve is installed on the substrate, the material of the roller sleeve is cobalt-based alloy, and the composition of the cobalt-based alloy is: Cr 20wt%, Ni 10wt%, W 0.2wt%, Mo 5.5wt%, V 3.0wt% %, Ti 5.0wt%, C 0.6wt%, Fe 20wt%, Al 5.0wt%, Mn 0.2wt%, Nb 0.02wt%, Si 0.4wt%, P<0.07wt%, S<0.07wt%, the rest are Co. The thickness of the roller cover is 50mm, and the roller cover and the base body are installed together by opening four key grooves and installation keys on the base body and the roll cover.

[0040] The sinking roll and the stabilizing roll of embodiment 2 are used in the same unit as the sinking roll and the stabilizing roll of the prior art, and the result of use shows that after the sinking roll of the present invention and t...

Embodiment 3

[0042] The matrix of sinking roll and stabilizing roll is austenitic-ferritic 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 roll sleeve is installed on the substrate, the material of the roll sleeve is cobalt-based alloy, and the composition of cobalt-based alloy For: Cr30wt%, Ni 15wt%, W 10wt%, Mo 0.1wt%, V 0.2wt%, Ti 3.0wt%, C 1.5wt%, Fe 15wt%, Al 0.02wt%, Mn 0.7wt%, Nb 3.0wt% %, Si 3.0wt%, P<0.07wt%, S<0.07wt%, and the rest is Co. The thickness of the roller sleeve is 1mm, and it is installed and fixed on the substrate by welding the end of the roller sleeve.

[0043] The sinking roll of embodiment 3 and the stabilizing roll are used in the same unit as the sinking roll of the prior art and the stabilizing roll, and the result of use shows that the service time of the sinking roll of the present invention and the stabilizing r...

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Abstract

The invention discloses a sink roller and a stabilizing roller, which adopt an iron-based material as substrates, roller sleeves are arranged on the substrates, and the material of the roller sleeves is a cobalt-base alloy which 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 of Si, and the balance of Co and inevitable impurities. The sink roller and the stabilizing roller adopt the roller sleeves made of the cobalt-base alloy so as to improve the resistance to heat plating bath corrosion of the working surfaces of the sink roller and the stabilizing roller, reduce bonding slag, prolong the service time after each processing, reduce the frequency of processing and replacement, reduce waste products caused by the frequency of processing and replacement, improve the whole quality of products, greatly save the production cost and ensure that the processing and manufacturing of the sink roller and the stabilizing roller are more convenient.

Description

technical field [0001] The invention relates to equipment in the technical field of thermal coating in the metallurgical industry. Specifically, the invention relates to a sinking roll and a stabilizing roll for thermal coating. A cobalt-based alloy roll sleeve is installed on the base of the roll. Background technique [0002] Due to the high production efficiency of the hot coating process, it has been widely used in metallurgy and coated steel plate industries. The hot-dip process includes hot-dip galvanized (GL), hot-dip galvanized (GI), hot-dip galvanized aluminum, and hot-dip pure aluminum. Taking the hot-dip galvanizing process as an example, when the steel strip is continuously hot-dip galvanized, the steel strip passes through the sinking roller immersed in the zinc solution to change the direction of movement. Severe molten zinc corrosion usually occurs due to sinking rolls and bushings being in molten zinc. In addition, since the sinking roll and the stabilizing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C2/00C22C19/07C22C30/00
Inventor 贺同正武广波
Owner PANGANG GROUP VANADIUM TITANIUM & RESOURCES
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