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Lead-free corrosion-resistant red Lima alloy for casting Buddha image in Tibetan area and technology thereof

A corrosion-resistant, Buddha-like technology, applied in the field of alloys, can solve problems that have not yet been achieved, and achieve the effect of slow excretion

Inactive Publication Date: 2018-12-11
GUANGZHOU YUZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The development and industrialization of Lima alloys with advanced performance is an inevitable problem. For a long time, many domestic research institutions and enterprises have made multi-faceted attempts, but unfortunately, no substantial progress has been made so far.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A lead-free and corrosion-resistant red Lima alloy for casting Buddha statues in Tibetan areas and its technology. In terms of weight percentage, the composition of the alloy is Li:0.8wt.%, Mn:2.0wt.%, Ge:5.0wt.%, Bi:4.0wt.%, Sb:4.0wt.%, Fe:12.0wt.% , Au: 3.0wt.%, Ag: 18.0wt.%, and the balance is copper. The above-mentioned lead-free corrosion-resistant red Lima alloy and its process for casting Buddha statues in Tibetan areas include the following steps: adding the above-mentioned raw materials into an induction furnace under an argon environment, and using a graphite crucible; melting at 1200 The temperature is kept at 1200°C for 10 minutes, and it is evenly stirred by high-frequency induction furnace electromagnetically; after stirring evenly, it is kept at 1200°C for 1 minute and cast out of the furnace; the alloy casting adopts a steel mold with a diameter of 20-30mm, and the temperature is cooled by water cooling. The obtained ingot is heated to 850-950 degrees a...

Embodiment 2

[0022] A lead-free and corrosion-resistant red Lima alloy for casting Buddha statues in Tibetan areas and its technology. In terms of weight percentage, the composition of the alloy is Li: 1.2wt.%, Mn: 4.0wt.%, Ge: 8.0wt.%, Bi: 6.0wt.%, Sb: 5.0wt.%, Fe: 16.0wt.% , Au: 4.0wt.%, Ag: 20.0wt.%, and the balance is copper. The above-mentioned lead-free corrosion-resistant red Lima alloy and its process for casting Buddha statues in Tibetan areas include the following steps: adding the above-mentioned raw materials into an induction furnace under an argon environment, and using a graphite crucible; melting at 1200 The temperature is kept at 1200°C for 10 minutes, and it is evenly stirred by high-frequency induction furnace electromagnetically; after stirring evenly, it is kept at 1200°C for 1 minute and cast out of the furnace; the alloy casting adopts a steel mold with a diameter of 20-30mm, and the temperature is cooled by water cooling. The obtained ingot is heated to 850-950 deg...

Embodiment 3

[0025] A lead-free and corrosion-resistant red Lima alloy for casting Buddha statues in Tibetan areas and its technology. In terms of weight percentage, the composition of the alloy is Li:0.9wt.%, Mn:2.5wt.%, Ge:5.4wt.%, Bi:4.2wt.%, Sb:4.8wt.%, Fe:14.0wt.% , Au: 3.8wt.%, Ag: 19.0wt.%, and the balance is copper. The above-mentioned lead-free corrosion-resistant red Lima alloy and its process for casting Buddha statues in Tibetan areas include the following steps: adding the above-mentioned raw materials into an induction furnace under an argon environment, and using a graphite crucible; melting at 1200 The temperature is kept at 1200°C for 10 minutes, and it is evenly stirred by high-frequency induction furnace electromagnetically; after stirring evenly, it is kept at 1200°C for 1 minute and cast out of the furnace; the alloy casting adopts a steel mold with a diameter of 20-30mm, and the temperature is cooled by water cooling. The obtained ingot is heated to 850-950 degrees a...

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Abstract

The invention discloses a lead-free corrosion-resistant red Lima alloy for casting a Buddha image in a Tibetan area and a technology thereof. The alloy is prepared from the following components in percentage by weight: 0.8 to 1.2wt. % of Li, 2.0 to 4.0wt. % of Mn, 5.0 to 8.0wt. % of Ge, 4.0 to 6.0wt. % of Bi, 4.0 to 5.0wt. % of Sb, 12.0 to 16.0wt. % of Fe, 3.0 to 4.0wt. % of Au, 18.0 to 20.0wt. %of Ag, and the balance of copper. The material provides a new lead-free and mercury-free material solution for the Lima alloy for copper casting in the Tibetan area. An obtained product has an excellent red appearance. The implementation and industrialization of the material can effectively promote the renewal of new materials and industrial upgrading needs in China.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a copper alloy. Background technique [0002] The copper casting process has a long history in our country, and it appeared as early as the Shang and Zhou dynasties. The early copper casting process was mostly used for casting Buddha statues, which has low cost and great flexibility. The production process of copper Buddha statues in Tibet is divided into two categories: one is the casting process, and the cast bronze Buddha statues are mainly small Buddha statues. The other category is the craftsmanship of making Buddha statues, mainly large Buddha statues. These cultural treasures embody the superb casting skills and splendid culture in ancient my country. [0003] There are currently two known casting processes for bronze Buddha statues: the lost wax method and the sand fan method. [0004] (1) Lost wax method. The principle is to use wax to make the same mold as the casti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C30/02C22C1/02C22F1/08C22F1/02C23C8/10
CPCC22C9/00C22C1/02C22C30/02C22F1/02C22F1/08C23C8/10
Inventor 杨长江
Owner GUANGZHOU YUZHI TECH CO LTD
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