Repaired mouth alloy melting granulating method and device for jewelries

Abstract

The present invention relates to repaired mouth alloy melting granulating method and device for jewelries, which belongs to the field of alloy smelter. The repaired mouth alloy melting granulating device comprises a middle-frequency induction power supply, an induction coil, a crucible, a blind device, a cooling water tank, a temperature measuring device and a rotating granulating device. Repaired mouth alloy particles for jewelries are prepared by a middle-frequency induction melting and centrifugal granulating method. The crucible is externally provided with an electric heating induction coil. The argon of protective gas is passed into the top part of a plumbago crucible. A build-in thermocouple is directly inserted into metal liquid to exactly measure the temperature of molten metal. The blind device is arranged at the bottom of the crucible, and blind blocks can be controlled to open and close through a mechanism driving device. The present invention has the advantages of simple operation, reliable running, high granulation speed and without complex vacuum system, can be used for preparing repaired mouth alloy material particles, and can be used for preparing noble metal and non ferrous metal alloy particles.

Description

technical field [0001] The invention relates to a method and a device for smelting and granulating a jointing alloy for jewelry, which belong to the field of alloy melting furnaces, and in particular relate to the smelting and preparation of jointing alloy particles for jewelry. Background technique [0002] As we all know, it is often necessary to add some other metal components in jewelry to make the jewelry more exquisite and meet the special requirements of craftsmanship. The commonly used technique is to pre-prepare an appropriate amount of alloy particles of other metals, that is, filling alloy particles. When other metals need to be added to jewelry, these metal alloy particles can be used directly. Coating alloy particles with moderate size, uniform composition distribution, small surface oxidation, and low porosity are beneficial to weighing ingredients, composition control, impurity control, melting temperature control, and loss control in the subsequent melting an...

AI Technical Summary

Problems solved by technology

[0003] At present, there are some commercial smelting and granulation devices on the market. The droplet method is the most used for granulation, but there are many problems: some can only be used for plastic or Granulation of alloy materials with low melting point; some have complicated design and troublesome operation, and are not suitable for industrial mass production; produce a large number of pores

There are many problems in these methods, which will affect the melting and casting effect of subsequent jewelry products.

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