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High-tensile property brass band for lamp holder and production process thereof

A technology of tensile properties and brass strips, which is applied in the field of high-stretch brass strips for lamp holders and its production process, can solve the problems of affecting the quality of finished products, high requirements, and coarse grains, so as to avoid appearance and finished products Rate, the effect of meeting the requirements of good plasticity

Active Publication Date: 2012-01-25
清远楚江高精铜带有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main production processes of lamp cap products are blanking, deep drawing, thread rolling, edge trimming, etc. Since the molding process of lamp cap products undergoes continuous deep drawing, and the thread rolling process is arranged after stretching, the plasticity requirements of the material are extremely high. High-end lamp holder products have higher requirements on surface quality, especially natural color products (the finished product is not electroplated), which requires a smooth, bright, and flat surface. Even slight defects on the surface may lead to downgrading treatment; Its cold working performance has a great influence. The mechanical properties and cold deformation properties of brass after annealing mainly depend on the grain size. Often, under the premise of pursuing the plasticity of the material, it is easy to cause coarse grains, resulting in pitting in the finished product, which is serious. affect the quality of the finished product

Method used

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  • High-tensile property brass band for lamp holder and production process thereof
  • High-tensile property brass band for lamp holder and production process thereof
  • High-tensile property brass band for lamp holder and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1: Production process of brass strip H650.25×200M

[0040] 1. Melting and casting process: In this example, the copper cathode is 1: Class B material 2, and the balance is zinc ingots, and the weight percentage of the obtained ingot is:

[0041] Copper: 64.2, lead: 0.0085, iron: 0.0050, tin: 0.0050, nickel: 0.0018, phosphorus: 0.0022, other impurity elements: 0.06, and the balance is zinc.

[0042] The size of the obtained billet is: thickness 165mm, width 210mm, length 4000mm;

[0043] 2. Heating and hot rolling process: the set temperature in the heating and holding zone is 920°C, the actual temperature of the ingot is 820-850°C, and the heating time is 4 hours. Before the ingot is released from the furnace, the temperature of the ingot is uniform; after the ingot is released, it is used for 11 passes hot rolling;

[0044] The resulting strip has a thickness of 13.5 mm and a width of 230 mm;

[0045] 3. Face milling process: Milling the upper and lower surf...

Embodiment 2

[0060] Embodiment 2 (comparative example of embodiment 1): brass strip H650.25 * 200M production process

[0061] 1. Melting and casting process: In this example, the copper cathode is 1: Class B material 4, and the balance is zinc ingots, and the weight percentage of the obtained ingot components is:

[0062] Copper: 64.3, lead: 0.0090, iron: 0.018, tin: 0.025, nickel: 0.020, phosphorus: 0.004, other impurity elements: 0.072, and the balance is zinc.

[0063] The size of the obtained billet is: thickness 165mm, width 210mm, length 4000mm;

[0064] 2. Heating, hot rolling process, face milling process, edge trimming process, blank annealing process, blank pickling process, semi-finished and finished product pickling process, inspection process, edge trimming, and packaging processes are as in Example 1;

[0065] 3. See Table-5 for the rolling and annealing process of semi-finished products and finished products;

[0066] Table-5 Production process of semi-finished products a...

Embodiment 3

[0070] Embodiment 3: Production process of brass strip H650.25×200M

[0071] 1. Melting and casting process: In this example, the copper cathode is 1: Class B material 4, and the balance is zinc ingots, and the weight percentage of the obtained ingot components is:

[0072] Copper: 64.2, lead: 0.0075, iron: 0.012, tin: 0.018, nickel: 0.015, phosphorus: 0.0023, cerium: 0.002: 0.0055, other impurity elements: 0.062, and the balance is zinc.

[0073] The size of the obtained billet is: thickness 165mm, width 210mm, length 4000mm;

[0074] 2. Heating, hot rolling process, face milling process, edge trimming process, blank annealing process, blank pickling process, semi-finished and finished product pickling process, inspection process, edge trimming, and packaging processes are as in Example 1;

[0075] 3. See Table-6 for the rolling and annealing process of semi-finished products and finished products;

[0076] Table-6 Production process of semi-finished products and finished p...

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Abstract

The invention discloses a high-tensile property brass band for a lamp holder and a production process thereof. The brass band comprises the following components in percentage by weight: less than or equal to 0.01 percent of lead, less than or equal to 0.02 percent of iron, less than or equal to 0.02 percent of tin, less than or equal to 0.02 percent of nickel, 0.001 to 0.003 percent of phosphor, 63.0 to 64.5 percent of copper, and the balance of zinc. Compared with the prior art, the high-tensile property brass band has the advantages that: the produced high-tensile property brass band for a lamp holder can fulfill the requirement for excellent plasticity in a lamp holder forming process, and prevent pitted surface of a product which is subjected to deep tension from influencing the appearance and yield by reasonably controlling the content of impure elements, grain sizes of finished products and deep drawability.

Description

Technical field: [0001] The invention belongs to a brass strip and a production process thereof, in particular to a high-stretch performance brass strip for a lamp cap and a production process thereof. Background technique: [0002] Brass has good processing performance, electrical conductivity, thermal conductivity, and good color (nearly golden color), it is widely used in copper strip alloys, and it is widely used in plumbing and sanitary ware, hardware punching parts, clothing decoration, electrical accessories and other industries ;Due to the different content of its internal elements, there are also many brass grades, and there are also differences in the mechanical properties and processing properties of each grade of brass. At present, the brass strips used in the production of lamp holders in the industry mainly have a thickness of 0.15-0.40mm. Between H62 and H65 processed brass, its composition is shown in Table-1: [0003] Table-1 GB / T 5231-2001 (chemical compos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/04
Inventor 黄咸胜何凡汤昌东吴宏保胡仰乾
Owner 清远楚江高精铜带有限公司
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