Mouth mold material of alloy cast iron glass mold and preparation method of mouth mold material
A glass mold and alloy cast iron technology, applied in the field of alloy cast iron glass mold die material and its preparation, can solve the problems of cracking and falling off, poor fusion of high temperature alloy powder, poor bonding performance of spray welding layer, etc. The effect of small cracking susceptibility
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Embodiment 1
[0021] 1. Molding: In order to obtain a chill layer of more than 3mm, on the basis of conventional sand molds, the working surface of the inner cavity of the die is chilled with a cold iron that is consistent with the shape of the inner cavity. The cold iron is shot blasted to remove rust, water and oil before use, and its surface is coated with alcohol-based paint to ensure that there is no adhesion between the cold iron and the die, and high-temperature oxidation and other defects.
[0022] 2. Ingredients: chemically analyze Q12 foundry pig iron, steel scrap, furnace charge, ferrosilicon, ferromanganese, ferromolybdenum and pure aluminum. Then take the raw material according to the mass percentage of the components, the mass percentage of the components is: C 3.4%, Si 2.5%, Mn 0.4%, P 0.04%, S 0.02%, Mo 1.6%, Al 0.7%, and the rest is Fe and unavoidable impurities. Weigh the raw materials and put them into the intermediate frequency furnace for melting. The raw materials ar...
Embodiment 2
[0027] In the batching step, the mass percentage of each component is C 3.4%, Si 2.6%, Mn 0.5%, P 0.03%, S 0.02%, Mo 1.7%, Al 0.8%, the rest is Fe and unavoidable impurities, and the remaining steps Same as Embodiment 1.
Embodiment 3
[0029] In the batching step, the mass percentage of each component is C 3.3%, Si 2.7%, Mn 0.4%, P 0.04%, S 0.01%, Mo 1.8%, Al 0.9%, the rest is Fe and unavoidable impurities, and the remaining steps Same as Embodiment 1.
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