Method for controlling quality of water turbine guide vane casting through double-loop conductive crystallizer electroslag remelting
An electroslag remelting and crystallizing technology, which is applied in the directions of casting molds, casting mold components, manufacturing tools, etc., can solve the problems of difficult process design, high production cost, poor process stability, etc., and achieve good solidification quality and surface quality. , the effect of reducing production costs and reducing the amount of subsidies
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[0044] Example 1
[0045] A two-circuit conductive crystallizer electric slag remelted to control the quality of the water turbine guide, and its electric slag is integrated figure 1 As shown, the conductive crystallizer wiring position is in the upper end of the crystallizer, the wiring broth is attached to the wiring board on the top of the conductive crystallizer, by power supply → self-consuming electrode → residue → conductive crystallizer → power circuit to achieve the same The axis conductive, reducing the conductive window of the electric slag remelting process, the self-consuming electrode is ZG0Cr13Ni4MO martensite stainless steel, including the steps of:
[0046] Step 1), bake of the slag:
[0047] After bakeing a sufficient amount of Slag ANF-6 (30% Al2O3 + 70% CaF2) at 800 ° C for 4 h, the slag is cooling, spares;
[0048] Step 2), preparation:
[0049] (1) Determine the amount of slag and the upper crystal of the lower crystal: 20 kg of slag, the lower crystal is 0.5...
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