In the 1960s and 1970s, a "twenty-eight bars" bicycle was not only a tool to meet love, but also a companion to our childhood. The "two eight" bicycle was an essential means of transportation and transportation for every household in that era.I remember when I was 12. One time, w
What memory alloy? A special metal material that can recover its original macroscopic shape after plastic deformation in a certain temperature range at another temperature range.It is mainly nickel-titanium (Ti-Ni) alloy material. For example: in a glass jar containing cold water, stretch a spring,
As we all know, titanium is a highly chemically active metal, it is easy to be oxidized in the air to produce titanium oxide, and the melting point of titanium is quite high, 1860 ° C, which makes the smelting process of titanium very difficult.How to ensure the high purity of titanium, you have to
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