Recently, Li Laifeng, a researcher at the Key Laboratory of Cryogenic Engineering of the Institute of Physics and Chemistry, Chinese Academy of Sciences, and a research team led by Huang Rongjin, a researcher, have taken the lead in carrying out research on the negative thermal expansion properties of NaZn13 LaFeSi-based compounds. Through the composition and structure design of LaFeSi-based compounds, they succeeded in developing novel negative thermal expansion materials with negative thermal expansion coefficients and negative thermal expansion temperature regions that can be adjusted by changing the compositional elements. For example, the composition of LaFe10.5Co1.0Si1.5 has a thermal expansion coefficient of -26.1×10-6K-1 in the 240-350K temperature range.

301 Stainless Steel Cut Wire Shot

Longlived 301 Stainless Steel Shot is made from high quality 301 stainless steel wire by drawing, cutting and round. It has been widely used on surface treatment of springs, gears, screws, chains and many other dis casting parts for surface treatment of deburring, anti-corrosion, anti-fatigue and so on.

Its advantage is as below:

1. It is obtained by cutting the wire so that there is no hallowness one in bulk. It has a great durability and long service life. It's

2. The cutting process is fully completed by automatic machine so its particle fineness is extremely uniform.

3. Grinding process changes the surface of Stainless Steel Shot to make parts have a fine and smooth surface.

4. It has a great characteristics of moderate hardness, high strength and good toughness. When used in shot blasting machine, it will not be broken easily and could save much time and cost.

5. It will not rust even in a wet environment for a long time due to its material of stainless steel.


Using Longlioved 301 Stainless Steel Shot could make shot blasting faster, safer and cleaner. Welcome all of clients to connect with us to learn more.

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