Tongyu has developed 73t AP1000 eletroslag remelting ingot , which is the 3rd generation of ingot used for nuclear plant pipeline, Electroslag smelting means melting the consumable electrode with the resistance heat generated from electricity. The molten metal will converges into droplets and passes through the slag pool, then falls into the crystallizer. Under the water cooling effect, the metal will immediately solidify into steel ingot .
Clients are required to offer their drawings and technical requirement, Which will transferred to technical department(heat treatment center, large forgings research center, mechanical research center, and welding department, etc, ) for confirmaion and accounting, Then we will offer you the quotation, The ordered products will be put into production as soon as possible after clients have placed an order. For any problems rasied in the product line , We will contact and disscuss with our clients directly.
Features of Eletroslag Remelting Ingot
When the droplets pass through the slag pool , the non-metallic debris will be absorbed by the slag,
The harmful elements (S Pb Sb Bi Sn)will be effectivly removed by the reaction between steel and slag .
Covered by the slag, the liquid steel is well protected from oxidation,
The slag generates a thin layer on the inner wall of crystallizer , working both to protect ingot surface and to insulate against heat or electricity. In this way , much of the thermal are transferred downward, ensuring the ingots compactness and directional crystallization.
Appications
The eletroslag remelting ingots produced by Tongyu are extensively applied in alloy steel , steel for rolls, mold steel, Martensitic stainless steel, Austenitic stainless steel, and steel for nuclear power , such as MC3A, MC5, 86CrMoV7, 9Cr2Mo, 9Cr3Mo, 70CrNiMoV, 60CrNiMo, 5CrNiMo, H11, H12
H13, 5CrMnMo, 410, FV520B, 17-4, 2Cr13, 0Cr17Ni4Cu4Nb, OCr13Ni5Mo, 304, 316, 321, 316LN, X2CrNiMo18.12, 34CrMo1A, 8630H, 34CrNiMo6, 21CrMo10, 20SiMn2MoVA, 42CrMo, 34CrNi3MoV, 35CrMo
18CrNiMo7-6, 20MnMoNb, 20SiMn, and 17Cr2Ni2Mo, etc.
Smelting Techniques-EAF+LF+VD+ESR
In the EAF+LF+VD smelting technique, the P, S content consumable eletrode is lower than 0.008%.
Besides, there is little debris in the raw material, The eletroslag ingots having been remelted feature high purity, low sulfur content, little non-matallic debris, smooth surface , compact struture,
And uniform chemical components. Their quality and properties can be modified. Tongyu provides high-quality steel ingots for large forgings, like steels for nulear power plant, steel for thermal power and turbine blades , etc.
