High-thermal-conductivity copper alloy glass mold bottom and preparation method thereof

Abstract

The invention discloses a high-thermal-conductivity copper alloy glass mold bottom and a preparation method thereof. The preparation method comprises the following steps: step 1, designing the mold bottom; step 2, shaping; step 3, smelting; 4, pouring is conducted; step 5, discharging from a box; and sixthly, heat treatment is conducted. The invention has the following beneficial effects: the copper matrix in the formula of the technical scheme has good toughness and excellent thermal conductivity, so that the requirement of high-machine-speed production of glass products can be met; the nickel can be infinitely dissolved with the matrix copper, so that the corrosion resistance is high, the stress resistance and the toughness can be enhanced, and the solid solubility of the zinc in the copper alloy is high, so that the zinc has a solid solution strengthening effect; aluminum can improve the oxidation resistance and hardness of the copper alloy; in addition, due to the fact that the heat dissipation fins are arranged in the structure of the mold bottom, the heat dissipation area is greatly increased, corresponding machining difficulty and workload cannot be brought about, and therefore the heat conductivity of the mold bottom of the copper alloy glass mold can achieve the excellent effect.

Description

technical field [0001] The invention relates to the technical field of glass mold material preparation, in particular to a high thermal conductivity copper alloy glass mold base and a preparation method thereof. Background technique [0002] Glass mold is an important tooling equipment for manufacturing glass products. In the process of industrial production, glass molds are frequently in contact with molten high-temperature glass liquid, which is inseparable from the quality of glass products. Therefore, glass is required to have strong resistance. High temperature performance and better thermal conductivity, in order to meet the requirements of customers for high-speed bottle making. With the continuous development of high-speed bottle making technology, the speed of glass bottle forming machines is getting higher and higher, so that the high strength of glass molds Comprehensive performance requirements such as high thermal conductivity are more stringent. At present, th...

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Problems solved by technology

[0004] Traditional copper alloys need to add a large amount of precious metals such as nickel and cobalt in the casting process to improve the overall performance of the alloy, such as oxidation resistance, thermal conductivity, tensile strength and other physical properties, and heat dissipation holes need to be processed by mechanical equipment And cooperate with another accessory wind plate to cool and dissipate heat, which will increase the complexity and difficulty of machining virtually, so as to improve the cooling effect of copper alloy during use, as a machining part in the preparation process of glass mold bottom is an important cost factor that cannot be ignored

[0005] In the published patent literature, as described in CN103203447A "a method for casting the bottom of a glass mold", the technician creatively uses cast iron for the mold base in the mold bottom, and uses a copper alloy for the molding part of the contact surface with the glass, so as to The method of inlay casting is combined to reduce the cost of using copper alloy. However, this technology has been used on the machine for a long time. Due to the inconsistency of the physical parameters such as thermal expansion coefficient and thermal conductivity of cast iron and copper alloy, after repeated heating The joint surface will gradually produce gaps, and the high-temperature glass liquid will penetrate into the joint surface along the gap, and as the joint surface slowly expands, it will eventually fall off, reducing the service life of the mold bottom.

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