● Aluminum oxide needle is suitable for spot welding between nickel strip, nickel-permeated steel plate, coated steel strip and other materials in battery production. Used in the production of nickel gas batteries, nickel pot batteries, polymer batteries, lithium batteries and other batteries, spot welding connectors, batteries, extraction parts.
● Product name: Alumina copper spot welding needle, welding needle
● Material: domestic material, Taiwan material, Nissan material, American material
● Needle model: off-core flat head, off-core ball head, same core ball head, straight baseball head, straight rod, other customized
● All the welding needles produced by this manufacturer are made of aluminum oxide copper
● Resistance welding material -- nano-alumina dispersion reinforced copper (alumina copper)
● Resistance welding materials expert nano alumina dispersion reinforced copper (alumina copper) Alumina copper -- designed for spot welding of galvanized steel plate, nickel-plated plate, nickel strip, aluminum alloy, stainless steel, brass, etc.
● Aluminum oxide copper material has the advantages of softening resistance and ablation resistance, long service life and high spot welding times.
● Electrode life is more than 5 times that of ordinary chrome-zirconium copper, reducing the shutdown and grinding time of the electrode.
● The battery spot welding machine adopts alumina copper welding needle, which improves the efficiency of automatic welding production line, and provides a terminal solution for welding galvanized steel plate. It is an indispensable electrode material for welding galvanized steel plate, nickel-plated plate, nickel strip, aluminum alloy, stainless steel and brass.
● Softening temperature up to 930℃, which is relatively high in copper alloys, but lower than tungsten copper (1000℃)
● The conductivity of alumina brazing pin is up to 85%IACS, and the heat dissipation performance is between tungsten copper (220 W/m-k) and pure copper (390 W/m-k).
| Model | Al2O3 content(wt%) | HRB | Electrical conductivity(%lACS) | Strength of extension(MPa) |
| C15715 | 0.3 | 65 | 94 | 480 |
| C15740 | 0.6 | 74 | 85 | 540 |
| C15760 | 1.1 | 85 | 80 | 620 |
1. Professional customization
Years of processing experience combined with the actual situation of customers to meet customer customization requirements
2. Seiko Production
Deep processing, smooth surface, stable welding point without virtual welding, solid welding point
3. High quality material
imported alumina copper material is more wear resistant to burning, longer service life
| Place of origin | Guangdong, China | Processing customization | Yes |
| Operating temperature | 25℃ | Type | Through/Eccentric/convex (optional) |
| Model number | C15760 | Length | 100MM (customizable) |
| Melting point | 930℃ | Diameter | 1.7MM (customizable) |
| Material | Aluminum oxide copper | Scope of application | Metal welding |
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