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A production method and spot copper technology, applied in the production field of natural spot copper products, can solve the problems of uneven crystal size, no public report, no three-dimensional effect, etc., and achieve uniform crystal size, strong three-dimensional effect and high quality. improved effect
Inactive Publication Date: 2008-01-16
张建中
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Problems solved by technology
However, there are still some problems in its production process, such as the primary product after the casting process can no longer be forged, and the raw materials of natural bornite products are only one or two kinds, etc.
Due to the above problems, the appearance of the produced natural bornite products is not refined, its crystal form is single crystal, the size of the crystal form is not uniform, and there is no three-dimensional effect.
[0003] Through literature search, there is no public report identical with the present invention
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Embodiment 1
[0011] The production method of the present invention includes sculpture modeling-model making-replicating investment pattern-making pattern-leaving investment pattern-smelting-casting-secondary crystallization-forging forming-polishing-sintering-burning spot and dyeing-inspection-packaging, etc. process; of which:
[0012] a. The smelting process is: when the natural bornite smelting temperature reaches 1100°C, directly add carbon, iron, calcium, silicon, lithium, tin, tellurium, bismuth, arsenic, aluminum, lead, antimony into the natural bornite melt , sulfur, sodium, barium, silver, magnesium, zinc, phosphorus, and boron metal elements, the addition amount of metal elements is: zinc 1%, and the rest are 5‰;
[0013] b. Add secondary crystallization and forging artificial forming process after the casting process, and its operating conditions are the same as the conventional method.
[0014] The remaining processes and operating conditions of the production method of the pr...
Embodiment 2
[0016] Basically with embodiment 1. The difference is: in the smelting process, when the smelting temperature of natural bornite reaches 1200°C, silicon, aluminum, lead, antimony, sulfur, sodium, barium, silver, magnesium, zinc, Phosphorus and boron metal elements, the addition amount of metal elements is: 5% of zinc, and 2‰ of the rest.
Embodiment 3
[0018] Basically with embodiment 1. The difference is: in the smelting process, when the natural bornite smelting temperature reaches 1280°C, silicon, aluminum, lead, antimony, sulfur, sodium, barium, silver, magnesium, zinc, Phosphorus and boron metal elements, the addition amount of metal elements is: zinc 10%, and the rest are 0.5‰.
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Abstract
The invention relates to a production method of natural mottled copper products, belonging to the technical field of metallic material processing. The inventive method comprises the steps of sculpturing and molding, mould fabrication, molten mould duplication, pattern die fabrication, demoulding, smelting, casting, secondary crystallization, forging molding, polishing, sintering, mottle formation, dyeing, inspection and packaging, wherein the smelting step comprises: (a) directly adding metal elements (including Si, Al, Pb, Sb, S, Na, Ba, Ag, Mg, Zn, P and B) into the molten liquid of natural mottled copper when the smelting temperature reaches 1100-1280 DEG C, the usage amount of Zn being 1-10 percent and the rest 0.5-5 permillage; (b) the secondary crystallization and forging molding steps are added following the casting step. The other steps and operational conditions of the inventive method are the same as the prior art. Compared with the prior art, the invention has the advantages of delicate appearance, multi-crystalline property and uniform size of crystal type, good three-dimensional effect, and improved quality of natural mottled copper products.
Description
Technical field: [0001] The invention relates to a production method of a natural bornite product, which belongs to the technical field of metal material processing. Background technique: [0002] As we all know, natural bornite products and their preparation methods have a long history. However, there are still some problems in its production process, such as the primary product after the casting process can no longer be forged, and the raw materials of natural bornite products are only one or two kinds. Due to the above problems, the produced natural bornite product has an unrefined appearance, its crystal form is single crystal, the crystal form is uneven in size, and has no three-dimensional effect. [0003] Through document search, do not see the public report identical with the present invention. Invention content: [0004] The object of the present invention is to provide a production method of natural bornite product which can improve product quality and is easy ...
Claims
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Application Information
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