Coating of boiler four tubes-Zhengzhou Lijia Thermal Spray Machinery Co,. Ltd

Coating of boiler four tubes

The water wall tube of power plant boiler is corroded by high temperature and erosion wear, and the failure is serious, which has great influence on power production. In foreign countries

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Introduction

The water wall tube of power plant boiler is corroded by high temperature and erosion wear, and the failure is serious, which has great influence on power production. In foreign countries, the most successful protective measure is the supersonic flame spraying carbide ceramic coating; In China, the usual protective measures are arc spraying ni-Cr alloy and fe-Cr aluminum alloy wear-resistant coating. Compared with arc spraying, the coating performance and protection life of supersonic flame spraying are greatly improved. The application of HVOF supersonic flame spraying NICR-Cr2C3 coating in water wall tube shows that the coating has high hardness, good high temperature resistance and long protection life.

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