Machining method for gong copper

A processing method, technology of gong copper, applied in the field of copper processing

Active Publication Date: 2016-03-30
ANHUI CHUJIANG TECHCAL NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems in the prior art that the addition of manganese element in the processing of gong copper is difficult to control, and the product strip shape control in subsequent processing is difficult, the present invention provides a method for processing gong copper, which solves the problem of how to add manganese element, and Can better control the product belt shape

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of gong copper processing method of the present embodiment comprises the following steps:

[0032] Step 1: smelting of raw materials;

[0033] The raw materials are electrolytic copper, tin ingot, manganese alloy and zinc ingot. The raw materials are put into the melting furnace for melting. Electrolytic copper and tin ingot are added first, then manganese alloy, and finally zinc ingot. Do spectral analysis to check the content of Cu, Sn, Pb, and Mn elements, and finally control the mass percentage of Cu elements to 60.5-61%, the mass percentage of Sn elements to 0.8-1%, and the mass percentage of Mn elements to 0.035-0.05% , the mass percentage of Pb element is not more than 0.008%. When the content of each element meets the above standard requirements, the musical instrument reed made of gong copper can have more beautiful sound quality, which is more in line with the market's quality requirements for gong copper. Specifically, in this embodiment, the raw mate...

Embodiment 2

[0044] The present embodiment is the same as embodiment 1, and the difference is that the mass percentage of the Cu element in the gong copper of the present embodiment is 61%, the mass percentage of the Sn element is 1%, the mass percentage of the Mn element is 0.05%, and the Pb element The mass percentage is 0.003%, and the annealing temperature in the roller hearth furnace is 650°C.

Embodiment 3

[0046] The present embodiment is the same as embodiment 1, and the difference is that the mass percentage of the Cu element in the gong copper of the present embodiment is 60.8%, the mass percentage of the Sn element is 0.9%, the mass percentage of the Mn element is 0.04%, and the Pb element The mass percentage is 0.006%, and the annealing temperature in the roller hearth furnace is 640°C.

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Abstract

The invention discloses a machining method for gong copper and belongs to the technical field of copper machining. The machining method includes the following steps that raw materials are smelted and include electrolytic copper, a tin ingot, manganese alloy and a zinc ingot, wherein the melting point of the manganese alloy is 750-850 DEG C, the mass percent of manganese in the manganese alloy is 30%-35%, the mass percent of Cu is finally controlled to be 60.5%-61% through smelting, the mass percent of Sn is finally controlled to be 0.8%-1% through smelting, the mass percent of Mn is finally controlled to be 0.035-0.05% through smelting, and the mass percent of Pb is finally controlled to be not larger than 0.008% through smelting; and ingot blank manufacturing, hot rolling, edge cutting and cold rolling are conducted on the raw materials with the specific cold rolling process of 2.1 mm-1.05 mm-0.85 mm-0.65 mm-0.5 mm-0.39 mm-0.32 mm. By means of the technical scheme, the problem that Mn is difficult to add can be effectively solved, and product strip patterns can be well controlled.

Description

technical field [0001] The invention relates to the technical field of copper processing, and more specifically, relates to a method for processing copper gongs dedicated to musical instruments. Background technique [0002] Gong copper is a kind of brass product specially used as musical instrument reed. In order to meet the special requirements of this musical instrument for timbre and the internal quality requirements of environmental protection and non-toxicity of the product, gong copper must be used on the basis of environmentally friendly brass belt products. In addition, adding a certain proportion of manganese can meet the basic requirements of this type of instrument. However, the difficulties in the production of gong copper mainly lie in: (1) when, how, and how much manganese is added; (2) how to transition to subsequent products after smelting and producing gong copper, and how to ensure that the influence of manganese is eliminated Reduce it to a controllable ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/08C22C9/04
CPCC22C9/04C22F1/08
Inventor 方友胜王明龙秦申海赵世美丁枫
Owner ANHUI CHUJIANG TECHCAL NEW MATERIAL CO LTD
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