High-Ni-Cu alloy glass mold and method for manufacturing same

Abstract

The invention discloses a high-Ni-Cu alloy glass mold and a method for manufacturing the same. The high-nickel-copper alloy glass mold is prepared from the following components by mass ratio: 8.5-10.5% of Al, 14.0-16.0% of Ni, 7.5-9.5% of Zn, 0.8-1.2% of Si, 0.8-1.2% of Fe, 0.08-0.15% of Mn and the balance of Cu. The method for preparing the high-Ni-Cu alloy glass mold comprises the following steps: preparing a Zn-Cu alloy, wherein the mass ratio of Zn and Cu is 45:55, determining the use amount of the raw materials for preparing the high-Ni-Cu alloy glass mold, the Zn-Cu alloy and the electrolytic copper according to the mass ratio of the components for preparing the high-Ni-Cu alloy glass mold, smelting the raw materials and the electrolytic copper in an intermediate-frequency furnace until the temperature reaches 1,200-1,240 DEG C, adding the Zn-Cu alloy, heating until the smelting temperature reaches 1,280-1,300 DEG C, preserving temperature and casting at 1,260-1,280 DEG C, and carrying out stress-relief annealing. The high-Ni-Cu alloy glass mold disclosed by the invention has the advantages of high heat conductivity and heat resistance and good corrosion resistance and can adapt to the high-speed production requirements of the high-speed bottle making machine.

Description

technical field [0001] The invention relates to a glass mold and a manufacturing method thereof, in particular to a high-nickel-content copper alloy glass mold with good thermal deformation resistance and a manufacturing method thereof. Background technique [0002] With the wide application of glassware in life, the demand is increasing, so the production of glass bottles and jars is developing towards high speed and light weight. The molds used on the high-speed bottle making machine for the production of glass bottles and jars are divided into cast iron glass molds and copper alloy glass molds according to materials. For example, the Chinese patent "High Alloy Black Iron Glass Mold and Its Manufacturing Method" with the publication number CN101914720A discloses a high alloy black iron glass mold material with weight percentage components: Si2.0~2.2%, Mn0.75~0.85% , Mo0.75~0.8%, Ni0.4~0.5%, V0.09~0.12%, Ti0.16~0.2%, Cr0.26~0.32%, C3.4~3.6% and the rest is Fe, such as cast...

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Problems solved by technology

For example, the Chinese patent "High Alloy Black Iron Glass Mold and Its Manufacturing Method" with the publication number CN101914720A discloses a high alloy black iron glass mold material with weight percentage components: Si2.0~2.2%, Mn0.75~0.85% , Mo0.75~0.8%, Ni0.4~0.5%, V0.09~0.12%, Ti0.16~0.2%, Cr0.26~0.32%, C3.4~3.6% and the rest is Fe, such as cast iron Although the glass mold as the base material improves its heat resistance by adding elements such as Mn, Ni, Cr, Mo, etc., it is still difficult to meet the high-speed production of high-speed bottle-making machines while ensuring reliable quality.

The ordinary copper alloy mold material contains 5-8% nickel element, 8-11% aluminum element, and the iron element content is controlled below 1.5%, and the rest is copper. This copper-based alloy material achieves high thermal conductivity. However, its hardness index is usually less than 200HBS, and its corrosion resistance is weak, especially in the high-speed production process, oxidation and corrosion are more likely to occur under continuous high-temperature conditions