Heat treatment is an essential part of the manufacturing process, involving heating a metal or alloy to a specific temperature and then cooling it to harden the material. In the manufacturing process of boilers, the following pressure components require post-weld heat treatment: alloy steel pressure components and carbon steel pressure components which include butt joints with wall thickness greater than 30mm, the cylinders of internal combustion boilers, and T-joints with tube sheet wall thickness greater than 20mm. As a professional industrial boiler manufacturer, ZOZEN Boiler always strictly follows the boiler safety technical specifications to conduct heat treatment on specified boiler components, which effectively reduces the residual stresses in the material that have been introduced by welding and improves the boiler performance.
In the traditional manufacturing industry under the background of the new era, in addition to training the basic skills of manufacturing, the importance of perfect after-sales service has become increasingly prominent, which has become an important factor to open the gap between the same industries. ZOZEN Boiler provides users with reliable after-sales service in all aspects.
In the modern production workshop of Wuxi ZOZEN Boiler, a professional boiler manufacturer, quality inspectors are using professional ultrasonic flaw detectors to inspect the quality of the weld between corrugated furnace and boiler drum; Assembly workers are carrying out pre-expansion, full welding and re-expansion before welding, which not only prevents the crack corrosion between WNS boiler flue pipe and tube plate, but also improves the welding strength; Welding workers are welding the roller automatically.
As a professional industrial boiler manufacturer, ZOZEN Boiler has always maintained the advanced technology and equipment. It owns 600 sets of advanced production equipment in the industry, with high processing precision and high efficiency, guaranteed boiler quality, and realized large-scale production with short delivery period.
ZOZEN SZS series gas/oil-fired boiler adopts the PLC control system, it can automatically control the system by temperature, water level and pressure control. ZOZEN Boiler provides the advanced parts and auxiliaries with the boiler system.
ZOZEN Boiler provided several sets of gas-fired steam boilers to the distributed energy resource park in Jiangsu Province, China. This industrial park used steam boilers for power generation and heating supply for the auto tyre producer. Therefore, ZOZEN Boiler customized several sets of boilers with different parameters to this project.
The Dongwha Finland plant is located in southern Finland. The plant has been owned by Dongwha Enterprises since 2017, mainly produces wide range of different types of impregnated papers. ZOZEN Boiler provided a set of 7 million kcal thermal oil heater to Dongwha Finland under the strict circumstance of COVID-19 pandemic.
ZOZEN Boiler has rencently accomplished several key projects in China. ZOZEN Boiler provided values for the enterprises and support for the customers with its professional technology and service.
