Automatic coaters for CRGO-HiB strip insulating coating
The sub-system consists of:
- a insulation solution storage tank;
- a mixed and temperature controlled circulating tank;
- a solution feeding tank;
- two coaters, one in stand-by, for the uniform dosing of insulating coating (1.5-4 g/m2);
- pumps, instrumentation, auxiliaries ….
Automatic plant for MgO preparation, dosing and strip coating
The sub-system consists of:
- a strip temperature control equipment;
- a solution preparation and dosing system (MgO and additives), temperature controlled, consisting of mixing tanks, weighting equipments etc.;
- a slurry feeding system;
- two coaters, one in stand-by, for the uniform dosing of MgO coating (6-10 g/m2);
- pumps, instrumentation, auxiliaries ….
Furnace Atmosphere Separators
able to avoid the mixing of the gas held in the furnace sections, having different composition.
The separators consist of:
- two or more upper barriers, made by mobile diaphragm;
- lower fixed barriers, close to the strip support rolls;
- one or more chamber pressure control system;
- a flame torch;
- instrumentation and controls.
Nitriding Section
The system feeds, in a safe and controlled manner, a flow of pure ammonia gas inside and along the furnace treatment section where it is mixed, before the introduction, with nitrogen and hydrogen.
The injection of the mixed gases is carried out by a number of mixing and injection devices, MID, made by nickel superalloy, inside the furnace.
The injected gas flow is a function of operating parameter of the line, like the expected content of Nitrogen on the strip surface and the velocity of the line.
The relationship between gas distribution strategy, gas flow and strip velocity are freely adjustable by H.M.I..
Process temperature: up to 1.050 °C
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