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Corrosion-resistant roller and manufacturing method thereof

A manufacturing method and corrosion-resistant technology, applied in the field of roller manufacturing, can solve the problems of inability to effectively resist the corrosion of high-temperature zinc-aluminum solution, reduced service life of the coating, strong corrosion, etc., to improve surface quality, prolong service life, and improve Corrosive effect

Active Publication Date: 2016-06-01
SHANGHAI JUSN SURFACE TECH ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the traditional aluminum-zinc solution, the high-aluminum zinc solution has a higher temperature and is more corrosive. The traditionally used WC thermal spray coating can no longer effectively resist the erosion of the high-temperature zinc-aluminum solution, and the service life of the coating Greatly reduced

Method used

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  • Corrosion-resistant roller and manufacturing method thereof
  • Corrosion-resistant roller and manufacturing method thereof
  • Corrosion-resistant roller and manufacturing method thereof

Examples

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Embodiment Construction

[0044] The present invention is described in detail below in conjunction with accompanying drawing:

[0045] Such as figure 1 and 2Shown is the corrosion-resistant roller 1. The corrosion-resistant roll 1 includes a substrate 11 and a corrosion-resistant coating 12 covering the surface of the substrate. The base body 11 is a traditional sinking roll. The corrosion-resistant spraying powder is melted and sprayed onto the surface of the substrate 11 by using a thermal spray gun to form a corrosion-resistant coating 12 , and a corrosion-resistant roller 1 coated with the corrosion-resistant coating 12 is obtained. In each embodiment, the composition weight percentage content of the powder for corrosion-resistant spraying is as shown in Table 1:

[0046] Table I

[0047]

[0048] The preparation method of powder for corrosion-resistant spraying is as follows:

[0049] a. Add one or both of TaC and NbC to TiC and WC according to the proportions by weight in Table 2, mix un...

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Abstract

The invention discloses a corrosion-resistant roll which is characterized by comprising a base and a corrosion-resistant coating coated on the base surface, wherein the corrosion-resistant coating is prepared by spraying a corrosion-resistant spraying powder. The corrosion-resistant roll can be widely used as a sink roll, guide roll or support roll in a hot-galvanizing or hot-aluminizing production line, and has favorable corrosion resistance. The corrosion-resistant layer on the roll surface has the advantages of favorable thermal shock resistance, low tendency to cracking or shedding and long service life, and the produced galvanized or aluminized steel plate and the like have higher quality.

Description

technical field [0001] The present invention relates to a corrosion-resistant roller and a method for manufacturing the same. In particular, it relates to a manufacturing method of a roller corrosion-resistant to zinc liquid, aluminum liquid and zinc-aluminum alloy liquid corrosion. Background technique [0002] At present, most anti-corrosion steel products in the world must be hot-dip galvanized or hot-dip aluminized. Hot-dip galvanizing or hot-dip aluminum has become the most basic and widely used method for steel corrosion protection, and is widely used in the production of steel plates, steel strips, steel wires, steel pipes, steel meshes and hardware parts. The service life of hot-dip galvanized or hot-dip aluminum workpieces can be increased by 11 to 28 times. [0003] In the hot-dip galvanizing or hot-dip aluminum production line, the temperature of the zinc liquid and the zinc-aluminum alloy solution usually reaches 620°C, and the temperature of the aluminum liqui...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C4/06C23C4/14C22C29/06C23C4/12
Inventor 张幸王建康
Owner SHANGHAI JUSN SURFACE TECH ENG
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