Laser Quenching equipment
Perform phase transformation hardening treatment on the metal surface to improve the hardness, wear ...
Perform phase transformation hardening treatment on the metal surface to improve the hardness, wear ...
Used for surface strengthening, repair, and remanufacturing of components, the coating has high adhe...
Flexible processing of complex curved sheet metal parts, with high cutting accuracy, fast speed, and...
Specially designed for seamless welding of precision plastic components, with a small heat affected ...
The sealing surface of natural gas valves is exposed to natural gas containing hydrogen sulfide for a long time, which can easily cause stress corrosion cracking. Traditional sealing surfaces use welding technology, and leaks occur within one year. Replacement requires stopping gas and reducing pressure, resulting in huge economic losses. Daokedao fused Ni-Cr-B-Si alloy coating enhances its resistance to sulfide corrosion by adding boron and silicon elements, with a sulfide corrosion resistance of up to 6000 hours and an extended sealing surface life of 5 years. After being applied by a natural gas company in Qatar, the valve leakage rate decreased from 8% to 0.5%, and the annual gas outage maintenance time was reduced by 90% due to a decrease in maintenance frequency, avoiding natural gas leakage losses exceeding $1 million. This sealing surface has been certified according to the ISO 15848-1 Class AH sealing standard and is suitable for high-pressure natural gas pipelines, becoming the designated supplier of Qatar Energy.
