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Electrode material for thermal-fuse movable electrode

一种温度保险丝、电极材料的技术，应用在电极材料领域，能够解决温度保险丝工作不良等问题，达到实现材料成本、耐熔敷性良好的效果

Active Publication Date: 2015-01-07
TANAKA PRECIOUS METAL IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is because the movable electrode is usually energized in a state of contact with the lead wire, and if welding occurs, it will become a major cause of malfunction of the thermal fuse.

Method used

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  • Electrode material for thermal-fuse movable electrode
  • Electrode material for thermal-fuse movable electrode
  • Electrode material for thermal-fuse movable electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1 : First, each metal was weighed so that the alloy composition would be Ag: 90.0% by mass and Cu: 10.0% by mass, and an Ag-Cu alloy was melted and cast. Thereafter, the Ag-Cu alloy ingot was rolled to a thickness of 4.15 mm and cut to manufacture an Ag-Cu alloy plate with a width of 115 mm and a length of 195 mm. In addition, an oxygen-free copper ingot was rolled to produce a Cu plate with a width of 120 mm, a length of 200 mm, and a thickness of 9 mm, and the above-mentioned Ag-Cu alloy plate was stacked on both surfaces of the Cu plate, and after cold compression bonding was performed at a pressure of 150 t, In a mixed gas of nitrogen and hydrogen, the temperature was kept at 800° C. for 60 minutes, and then thermocompression bonding was performed at a pressure of 100 tons. The crimped three-layer (Ag-Cu alloy / Cu / Ag-Cu alloy) clad material was rolled to manufacture a clad material strip.

[0035] Next, the clad strip was rolled to 450 μm to form a three-l...

Embodiment 2

[0036] Example 2 : In Example 1, when the inside of the three-layer cladding material (Ag-Cu alloy / Cu / Ag-Cu alloy) was oxidized, the heat treatment time was set to 10 hours. Thus, the thickness of the Ag-CuO alloy layer was set to 91 μm, and the thickness of the Ag-Cu alloy layer was set to 19 μm. Thereafter, calendering was performed in the same manner as in Example 1 to manufacture a five-layer clad material tape. The clad material tape produced was Ag-CuO (18.3 μm) / Ag-Cu (3.7 μm) / Cu (45 μm) / Ag-Cu (3.7 μm) / Ag-CuO (18.3 μm) with a total thickness of 89 μm. The obtained clad material tape was cut and processed to form an electrode material for evaluation.

Embodiment 3

[0037] Example 3 : In Example 1, when the inside of the three-layer cladding material (Ag-Cu alloy / Cu / Ag-Cu alloy) was oxidized, the heat treatment time was set to 3 hours. Thus, the thickness of the Ag-CuO alloy layer was 55 μm, and the thickness of the Ag-Cu alloy layer was 55 μm. Thereafter, calendering was performed in the same manner as in Example 1 to manufacture a five-layer clad material tape. The clad material tape produced was Ag-CuO (11 μm) / Ag-Cu (11 μm) / Cu (45 μm) / Ag-Cu (11 μm) / Ag-CuO (11 μm) with a total thickness of 89 μm. The obtained clad material tape was cut and processed to form an electrode material for evaluation.

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PUM

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Abstract

The present invention is an electrode material for configuring a thermal-fuse movable electrode, and having a five-layer clad structure comprising a core layer, intermediate layers formed on both surfaces of the core layer, and surface layers formed on the intermediate layers, wherein: the core layer comprises Cu; the intermediate layers comprise an Ag-Cu alloy; the surface layers comprise an Ag-CuO-oxide-dispersion-strengthened alloy; and the ratio of the thickness of the intermediate layers to the thickness of the surface layers (intermediate / surface) is 0.2 to 1.0, inclusive. It is possible to produce this electrode material by sectionally performing an internal oxidation processing on a three-layer clad material obtained by cladding both surfaces of a sheet material comprising Cu with a sheet material comprising an Ag-Cu alloy.

Description

technical field [0001] The present invention relates to electrode materials, in particular to materials suitable for movable electrodes of thermal fuses. Background technique [0002] figure 1 Indicates the structure of a general thermal link. In the thermal fuse 1 , lead wires 21 and 22 are connected to a case 10 made of conductive metal, and an insulating material 30 , springs 41 and 42 , a movable electrode 50 , and a fusible body 60 are housed in the case 10 . The spring 41 is provided between the movable electrode 50 and the insulating material 30 , and the spring 42 is provided between the movable electrode 50 and the meltable body 60 . The movable electrode 50 is in a movable state in contact with the inner surface of the casing 10 . The thermal fuse is normally ( figure 1 state), and electricity is passed from the lead wire 21 to the movable electrode 50 and the case 10 , and further to the lead wire 22 . And, when the thermal fuse becomes overheated due to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H37/76C22C5/06C22F1/14C22F1/00
CPCC22C5/06C22F1/14H01H1/0237B32B15/01H01H37/765C22C5/08C22F1/00H01H37/76C22C1/02B32B15/018C22C9/00H01H11/042H01H2011/047H01H85/143
Inventor 坂口理高桥宙也足立信也
Owner TANAKA PRECIOUS METAL IND
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