Easily processed silicon brass alloy and preparation method thereof

A silicon brass, easy-to-process technology, applied in the field of alloys, can solve the problems of poor processing performance, cracking, easy shrinkage of castings, etc., and achieve the effect of strong dezincification resistance, simple process, and less shrinkage

Active Publication Date: 2015-05-27
JOMOO KITCHEN & BATHROOM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing silicon brass alloy has high hardness, the castings are easy to shri

Method used

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  • Easily processed silicon brass alloy and preparation method thereof
  • Easily processed silicon brass alloy and preparation method thereof
  • Easily processed silicon brass alloy and preparation method thereof

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[0016] An easy-to-process silicon brass alloy is composed of the following components: 60-63wt% copper (Cu), 0.50-0.90wt% silicon (Si), 0.50-0.80wt% aluminum (Al), 0.10-0.20wt% lead (Pb), other elements are less than 0.3%, the rest is zinc (Zn) and unavoidable impurities, of which (copper+silicon+aluminum+zinc)>99.60%, the other elements are tin (Sn), manganese (Mn) , a combination of iron (Fe) and nickel (Ni).

[0017] As a preferred embodiment, the alloy is composed of the following components: 61-62.5wt% copper (Cu), 0.60-0.80wt% silicon (Si), 0.60-0.80wt% aluminum (Al), 0.10- 0.15wt% lead (Pb), 0.20~0.25wt% other elements, the rest is zinc (Zn) and unavoidable impurities, wherein (copper+silicon+aluminum+zinc)>99.70%, said other elements are tin (Sn ), manganese (Mn), iron (Fe) and nickel (Ni) combination, specifically including 0.06-0.1wt% tin (Sn), 0.002-0.007wt% manganese (Mn), 0.07-0.09wt% iron (Fe) , 0.04 to 0.09% nickel (Ni).

[0018] The method of preparing easy-...

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Abstract

The invention discloses an easily processed silicon brass alloy. The alloy comprises the following components in percentage by weight: 60-63% of copper (Cu), 0.50-0.90% of silicon (Si), 0.50-0.80% of aluminum (Al), 0.10-0.20% of lead (Pb), less than 0.3% of other elements, and the balance of zinc (Zn) and inevitable impurities, wherein the sum of copper, silicon, aluminum and zinc is more than 99.60%, and other elements are a combination of tin (Sn), manganese (Mn), ferrum (Fe) and nickel (Ni). The invention further comprises a preparation method of the silicon brass alloy. The prepared silicon brass alloy is obviously higher than common lead brass in the performances of tensile strength, elongation rate, hardness and anti-zinc removal, the casting processability is good, practical production and application demands can be met, the precipitation of metals can meet the standard requirements, and the easily processed silicon brass alloy can be widely applied to water heating, valves and other various industries having limit on the precipitation of metal pollutants.

Description

technical field [0001] The invention relates to the field of alloys, in particular to an easy-to-process silicon brass alloy and a preparation method thereof. Background technique [0002] Lead brass is widely used in daily hardware and drinking water systems because of its good mechanical and physical properties, as well as good processing performance. However, the lead content in lead brass is high, which is easy to precipitate and pollute the environment. Especially when used in drinking water systems, it will cause serious harm to the human body, so all countries have put forward corresponding restrictions on the lead content of these products. The development of new brass alloys to reduce the content of lead while maintaining good processing performance has become an inevitable trend in the development of the industry. Among them, silicon brass replaces lead with silicon, and has attracted attention for its environmental protection and health. The existing silicon bras...

Claims

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Application Information

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IPC IPC(8): C22C9/04C22C1/02
CPCC22C1/02C22C9/04
Inventor 林孝发林孝山巴寿宁黄志钱陈国煌
Owner JOMOO KITCHEN & BATHROOM
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