1、 Basic Definition and Classification
1. Core Definition
Nickel alloy is a metal material formed by adding copper, iron, chromium and other elements to nickel as the matrix. It has high temperature strength, corrosion resistance and special physical properties, and is widely used in energy, chemical, aerospace and other fields.
2. Main types
Nickel based high-temperature alloy: suitable for high-temperature environments ranging from 650 to 1000 ℃, such as aircraft engine turbine blades and nuclear reactor heat exchangers.
Nickel based corrosion-resistant alloy: containing about 30% copper, resistant to acid and seawater corrosion, used in chemical equipment and marine engineering.
Nickel iron alloy: containing 15%~60% nickel, improving the tensile strength and plasticity of stainless steel, suitable for automotive and mechanical manufacturing.
Precision functional alloys: including magnetic alloys, shape memory alloys, etc.
2、 Technical and material characteristics
1. Core performance advantages
High temperature stability: Nickel based high-temperature alloys maintain mechanical strength at extreme temperatures and have significantly better oxidation resistance than iron-based materials.
Corrosion resistance: The corrosion rate of Monel alloy in acidic and marine environments is only 1/10 of that of ordinary steel.
Adjustable physical properties: By adjusting the element ratio, conductivity, magnetism, and thermal expansion coefficient can be optimized.
2. Process and Design Innovation
Edge material ratio technology: By coordinating multiple impellers to control the feeding ratio, the production efficiency and composition consistency of nickel alloy are improved.
Modular structure: The equipment adopts a detachable mold design to adapt to different nickel alloy production needs.
3、 Production and Industry Dynamics
1. Global layout
China Guangxin Holdings Group is promoting a nickel cobalt wet process project in Indonesia to strengthen upstream resource control in the new energy industry chain.
The increasing proportion of nickel iron alloy in stainless steel raw materials is driving the growth of nickel metal consumption.
2. Technical challenges
Material cost: The high processing cost of high-purity nickel limits its popularity in the civilian field.
Health risks: Nickel metal and alloys are classified as potential carcinogens in Class 2B and require optimization of production environmental protection standards.
