voestalpine Böhler Welding
voestalpine Böhler Welding

No Solar Energy without Polysilicon

Success Story | Netherlands

Verolme® Special Equipment b.v. in the Netherlands manufactures reactors and equipment for the polysilicon industry

Verolme® Special Equipment (VSE), is an important supplier of reactors for the polysilicon sector which produces the raw material for the solar and electronics industry worldwide. The thick-walled reactor shells are welded with the hot wire GTAW process using UTP A 2133 Mn welding wire which has an optimized chemical composition and an ultra-clean surface finish optimized for this process.

This equipment is used to manufacture polysilicon, primarily in hydrochlorination processes which operate at temperatures between 550 and 750 °C. For this challenging application, VSE developed its own material specification – Verolme® 800H Modified – a high purity version of Alloy 800H with increased resistance against stress relaxation cracking. The thick-walled reactor shells are welded with the hot wire GTAW process using UTP A 2133 Mn welding wire which has an optimized chemical composition and an ultra clean surface finish optimized for this process.

 

Read the full Success Story with Verolme® Special Equipment and UTP Maintenance here!