Mouth mold material of alloy cast iron glass mold and preparation method of mouth mold material
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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
Active Publication Date: 2015-01-14
SUZHOU DONGHAI GLASS MOLD
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Problems solved by technology
The main problem of die cast iron materials used in the industry at present is the poor bonding performance with the spray welding layer
The reason is that the composition of the base alloy cast iron structure of the die is poorly fused with the high temperature resistant alloy powder, and the base alloy cast iron and the spray welding alloy powder have different linear expansion coefficients, resulting in a difference in the life of the die by 4~6 times
Even after the spray welding process is finished before the finished product is finished in the factory, cracking and falling off will occur in the subsequent machining process
Method used
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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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Abstract
The invention discloses a mouth mold material of an alloy cast iron glass mold and a preparation method of the mouth mold material. The mouth mold material of the alloy cast iron glass mold comprises the following components in mass percentage: 3.3-3.5% of C, 2.4-2.9% of Si, 0.3-0.5% of Mn, less than 0.05% of P, less than 0.03% of S, 1.5-2.0% of Mo, 0.6-0.9% of Al and the balance of Fe and inevitable impurities. According to the mouth mold material of the glass mold and the preparation method of the mouth mold material, by designing reasonable chemical components and the mixture ratio and adopting a reasonable preparation process, the linear expansion coefficient of the prepared mouth mold material of the alloy cast iron glass mold is close to or slightly higher than the linear expansion coefficient of heat-resistant alloy welding powder, the cracking sensitivity of a cladding layer is reduced, and the situation that cracking and shedding often occur in the process of the subsequent machining procedure of the existing mouth mold material of the alloy cast iron glass mold is further effectively solved.
Description
technical field [0001] The invention relates to the field of glass mold die materials, in particular to an alloy cast iron glass die die material and a preparation method thereof. Background technique [0002] Whether it is blow-blow or press-blow bottle making process, the die is one of the most important molds in the glass bottle forming process. Due to the high production cost and poor welding performance of the copper alloy mold, the current technology cannot completely overcome it. At present, the status of cast iron as the core material of the die will not change. The die of cast iron material has the distinction of using bar profiles and foundry casting blanks. Since bar profiles are easy to purchase and raw materials can be stocked, most mold makers use bars to make dies. However, dies produced from bars have no chilling layer, so the service life is generally short and the quality is not guaranteed. [0003] The structural characteristics of the die determine tha...
Claims
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Application Information
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