0.03mm electrodeposited nickel foil
Ingredients: Nickel purity 99.96%
Thickness: 5~50um (Tolerance ±5%)
Width: 0~1350mm
Resistivity: 0.076Ωmm2/m
Roughened nickel foil: The surface of pure nickel foil is treated electrochemically to obtain a microscopic rough structure on the working surface, changing it from hydrophobic to hydrophilic to improve the bond between the coating and the surface of the part. Binding force. The purpose of roughening is to improve the adhesion and adsorption properties of metal surfaces and other materials. The specific performance is as follows:
(1) Ingredients: Single-sided roughened nickel foil (purity 99.96%)
(2) Thickness: 25～65μm (tolerance ±5%)
(3) Width: 0～300mm
Other nickel alloy foils
1. Iron-nickel alloy foil
Electrodeposited iron-nickel alloy foil is an alloy film material obtained by the electrodeposition process of two main metal elements: iron and nickel and a small amount of other metal elements. The material is nanocrystalline. The content of iron and nickel elements in the alloy can be processed according to different needs. Different contents can be used to meet different performance requirements. High-temperature annealing treatment can also be performed to further improve the comprehensive magnetic properties and mechanical properties of the material. Its performance parameters are as follows:
(1) Mechanical properties of iron-nickel alloy foil:
Tensile strength 750～800MPa Elongation 3%～6%
(2) Soft magnetic properties of iron-nickel alloy foil
Maximum magnetic permeability 30000～32000 Saturation magnetic induction intensity Bs=1.8T
(3) Appearance dimensions of iron-nickel alloy foil
Length Unlimited Width 0～1350mm Thickness 5～50μm Thickness error ±5% Surface finish Ra 0.2～0.3μm
2. Invar alloy foil
Invar is an iron-based high-nickel alloy, usually containing 32%-36% nickel, a small amount of S, P, C, and other elements, and the rest is about 60% Fe. Since nickel is an expanded austenite element, so high nickel reduces the phase transformation of austenite to martensite below room temperature: -100~-120°C. Therefore, after annealing, Invar alloy has surface properties at room temperature and within a certain temperature range below room temperature. The austenite structure of the core lattice structure is also a solid solution formed by nickel dissolved in γ-Fe, so Invar alloy has the following properties.
(1) Small expansion coefficient
Invar alloy is also called inflatable steel, and its average expansion coefficient is generally 1.5 Variety.
(2) Low strength and hardness
The C content of Invar alloy is less than 0.05%, the hardness and strength are not high, the tensile strength is about 517MPa, the yield strength is about 276MPa, and the Vickers hardness is about 160. Generally, the strength can be improved through cold deformation. When the strength is increased, has good plasticity.
(3) Low thermal conductivity
The thermal conductivity of Invar alloy is 0.026~0.032cal/cm·sec·℃, which is only 1/3-1/4 of the thermal conductivity of 45 steel.
(4) High plasticity and toughness
The elongation, area reduction, and impact toughness of Invar alloy are very high, the elongation δ=25%-35%, and the impact toughness aK=18-33 kg·m/cm.
