Xi’an Hi Precision Machinery Co., Ltd. is a professional Invar CNC machining company, headquartered in Shaanxi, China. The company has been engaged in the field of precision metal manufacturing for about 10 years, with rich experience and support for on-demand or small-batch manufacturing.
What is Invar
“Invar” comes from the word “invariable”, which refers to the property of expanding and contracting very little when the temperature changes. Invar is essentially a nickel steel alloy, a special steel containing 36% nickel. Due to its extremely small expansion coefficient, it can maintain a fixed length from very low temperatures to temperatures exceeding room temperature (this characteristic is also known as the Invar effect), it is suitable for use as measuring components and is an important raw material for manufacturing LNG carriers.
Although Invar steel does not have as good cutting properties as metals such as 6061 aluminum or brass, never underestimate the flexibility of CNC machining.
Our professional CNC technicians will reasonably select CNC tools and cutting speed, feed rate, cutting fluid, etc. based on the cutting performance and other characteristics of Invar alloy.
CNC machining involves a lot of professional knowledge and operations, if you are looking for a metal parts manufacturer, please choose us.
Applications of Invar Steel
The characteristics of Invar alloy include extremely small expansion coefficient, low thermal conductivity, and good plastic toughness. It is suitable for applications in many fields such as aviation, aerospace, low-temperature stable materials, and timing devices.
- Aviation sector. Due to its high strength and low expansion properties, Super Invar can tightly control the clearance between the rotating and stationary parts of the engine. Improve energy input and output efficiency. High strength increases the strength-to-density ratio of the alloy to reduce aircraft take-off weight.
- Aerospace field. Super Invar alloy has better resistance to hydrogen environment embrittlement than current high-temperature alloys, especially resistance to atmospheric high-pressure hydrogen embrittlement, and can be used for components serving in hydrogen environments in rocket engines.
- electronic field. It can be used to manufacture electronic components, precision instruments, standard clock pendulums, balance wheels and hairsprings of clocks, etc.
- Communication field. Widely used in radio, precision instruments, instrumentation and other industries.
- other. Can be used to manufacture standard measuring tools, microwave resonant cavities, bimetal passive layers, etc.