A high temperature and corrosion resistant sinking roller and its manufacturing method

A manufacturing method and anti-corrosion technology, which is applied in coating, melt spraying, metal material coating technology, etc., can solve the problem that sinking rollers are easily damaged by corrosion, achieve good wear resistance, slow down corrosion speed, and reduce wear Effect

Active Publication Date: 2020-12-25
MAANSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Aiming at the problem that the sinking roll of the hot-dip aluminum plating production line is easily damaged by corrosion in the prior art, the present invention provides a high-temperature-resistant and corrosion-resistant sinking roll and its manufacturing method. The coating material greatly slows down the corrosion rate of the sinking roller and effectively prolongs the service life of the sinking roller

Method used

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  • A high temperature and corrosion resistant sinking roller and its manufacturing method
  • A high temperature and corrosion resistant sinking roller and its manufacturing method
  • A high temperature and corrosion resistant sinking roller and its manufacturing method

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Embodiment Construction

[0055] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings.

[0056] Table 1 is the material and process parameter data of embodiment and comparative example;

[0057] Table 2 is a comparison of the performance of the sink rolls of the examples and the comparative examples.

[0058] Table 1

[0059]

[0060] Table 1 (continued)

[0061]

[0062] Table 2 (√ stands for qualified, × stands for unqualified)

[0063] category Coating Toughness Coating high temperature wear resistance Coating high temperature corrosion resistance Sinking roller life Example 1 √ √ √ 120h Example 2 √ √ √ 150h Example 3 √ √ √ 132h Comparative example 1 √ √ × 96h Comparative example 2 √ × √ 80h Comparative example 3 × × × 72h

[0064] figure 1 It is a structural schematic diagram of the sinking roller of the present application, figure 2 For the sin...

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Abstract

The invention discloses a high-temperature-resistant and corrosion-resistant sinking roller and a manufacturing method thereof, which belong to the field of hot-dipping equipment. The high-temperature-resistant and corrosion-resistant sinking roller of the present invention includes a roller body and a roller shaft, the surfaces of the roller body and the roller shaft are both coated with a coating, and the coating material is made of raw materials with the following weight ratio: WC: 70~ 90 parts; Co: 8-15 parts; Cr 3 C 2 : 3 to 15 parts; the surface of the roller body is provided with grooves in the circumferential direction, and the bottom surface of the grooves is an arc transition surface; the roller body is made of 316L stainless steel; the roller shaft is made of stellite-chromium-cobalt alloy; the sinking roller of the present invention It is made by groove processing, pre-treatment, coating material preparation and supersonic flame spraying. The invention greatly slows down the corrosion speed of the sinking roller and effectively prolongs the service life of the sinking roller by spraying the coating material of specific composition on both the roller body and the roller shaft surface of the sinking roller.

Description

technical field [0001] The invention belongs to the field of hot-dipping equipment, and more specifically relates to a high-temperature-resistant and corrosion-resistant sinking roller and a manufacturing method thereof. Background technique [0002] Hot-dip aluminized steel sheet has excellent corrosion resistance, high temperature oxidation resistance, heat reflectivity and ecological characteristics, and its service life is more than 5 times longer than that of hot-dip galvanized sheet. It is widely used in automobiles, home appliances and other fields at home and abroad. [0003] The temperature in the pot of the hot-dip aluminum plating production line is relatively high, nearly 700°C, and the aluminum liquid will strongly corrode the sinking roller, correcting roller and their bearings in the aluminum pot. At the same time, aluminum slag is more likely to be produced in the aluminum pot, and the accumulation of aluminum slag on the surface of ordinary sinking rolls wil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C2/12C23C2/40C23C4/06C23C4/02C22C29/08C23C4/129C22C19/07C22C30/00
CPCC22C19/07C22C29/08C22C30/00C23C2/003C23C2/12C23C2/40C23C4/02C23C4/06C23C4/129
Inventor 李伟刚赵云龙王滕柴立涛周忠臣张百勇何峰
Owner MAANSHAN IRON & STEEL CO LTD
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