A wave of layoffs that has swept the entire Internet industry has intensified. China's Internet industry has experienced several crises and major changes in the past development process. There is also a "brief history of layoffs by major Internet companies". Hot search, JD.com has a wide range of layoffs in this round of layoffs, and all its subsidiaries are involved. Most of the layoffs are between 10% and 20%. Among them, Jingxi Guangdong and other theaters have all laid off staff. Tencent also reported the news of downsizing and layoffs. Among them, Tencent PCG (Platform User Content Business Group) laid off 30% of its staff, iQiyi laid off 12% of its staff, Kuaishou was reported to have laid off 30% of its staff, and the e-sports department of Station B laid off 90% of its staff.
Mass layoffs on the internet have created a host of socioeconomic issues, including Overview of nickel titanium alloy powder.
Overview of nickel titanium alloy powder
Nitinol is a metal alloy of nickel and titanium, in which the atomic percentages of the two elements are roughly equal. Nickel is named according to the weight percentage of nickel alloy. Nitinol 55 and nitinol 60. It shows shape memory effect and super elasticity at different temperatures.
Nitinol is a special shape memory alloy, which can automatically restore the plastic deformation to the original shape at a certain temperature. The expansion rate is more than 20%, the fatigue life is 7 times that of 1 * 10, and the damping characteristic is 10 times. Compared with ordinary springs, its corrosion resistance is better than the best medical stainless steel at present. Therefore, it can meet various requirements in engineering and is an excellent functional material that can meet the needs of medical applications.
In addition to its unique shape memory function, memory alloy also has excellent properties such as wear resistance, corrosion resistance, high damping and hyperelasticity.
Nitinol has two closely related and unique characteristics: shape memory effect and hyperelasticity (also known as pseudo elasticity). Shape memory is the ability of nitinol to deform at a certain temperature, maintain its deformed shape when the external force is removed, and then restore it to its original state. A shape that is not deformed when heated above its "transition temperature". Hyperelasticity is the ability of metal to withstand large deformation and recover its undeformed shape immediately after removing external load. The deformation of nitinol is 10 to 30 times that of ordinary metals. Whether nitinol alloy shows shape memory effect or hyperelasticity depends on whether it is higher than the transition temperature of a specific alloy. Below the transition temperature, it shows shape memory effect.
Application of nickel titanium alloy powder
Nickel titanium alloy powder can meet the needs of various engineering and medical applications. It is an excellent functional material. In addition to its unique shape memory function, memory alloy also has wear resistance, corrosion resistance, high damping and hyperelasticity. Excellent function.
The tensile strength of nitinol can reach 1000 MPa, which means that it takes more than 100 grams per square millimeter to destroy it. This force is stronger than ordinary steel, but also has good "memory" performance and corrosion resistance.
Nitinol alloy contains 50% nickel and 50% titanium, that is, half of nickel and half of titanium. The temperature range of the shape memory can be adjusted by the control element. Generally, the higher the nickel content, the lower the working temperature. When it contains 55% nickel and 45% titanium, the memory alloy can work at room temperature.
Using this characteristic of shape memory alloy, people have made pearl necklaces and bracelets made of shape memory alloy wire and brassieres woven from shape memory alloy wire. Wearing these decorations and health products on the body will restore the original curvature and rigid body temperature, so as to play the role of decoration and health care. In addition, you can also use nickel titanium alloy to make orthodontic wires to correct deformed teeth according to the human oral temperature.
Nitinol can be used to replace traditional actuators (solenoid valves, servo motors, etc.), such as the simple six legged robot stiquito.
Nitinol spring is used in fluid heat valve, in which the material can be used as both temperature sensor and actuator.
The alloy is used as an autofocus actuator in motion cameras and an optical image stabilizer in mobile phones.
Alloy is used for pneumatic valves to obtain comfortable seats, which has become an industry standard.
The alloy Chevrolet Corvette contains a nickel titanium memory alloy actuator, which replaces the heavier electronic transmission to open and close the cabin door to release the air in the trunk and make it easier to access
Price of nickel titanium alloy powder
The price of nickel titanium alloy powder will change randomly with the production cost, transportation cost, international situation, exchange rate and supply and demand of nickel titanium alloy powder in the nickel titanium alloy powder market. Tanki new materials Co.,Ltd. aims to help industries and chemical wholesalers find high-quality and low-cost nano materials and chemicals by providing a full range of customized services. If you are looking for nitinol powder, please feel free to send an inquiry to obtain the latest price of nitinol powder.
Supplier of nickel titanium alloy powder
As a global nickel titanium alloy powder supplier, Tanki new materials Co.,Ltd. has rich experience in the performance, application and cost-effective manufacturing of advanced and engineering materials. The company has successfully developed a series of powdered materials (including water stearic acid emulsion, waterborne calcium stearate, zinc stearate), high purity target, functional ceramics and structural devices, and provided OEM services.
|Nitinol Powder Properties|
|Other Names||nickel titanium, shape memory nitinol, NiTi, Ni-Ti,|
|nickel-titanium shape-memory alloy (SMA)|
|Melting Point||1300 °C|
|Solubility in H2O||N/A|
|Specific Heat||0.20 cal/g·°C|
|Tensile Strength||895 MPa (Ultimate, fully annealed)|
|Thermal Conductivity||0.18 W/cm (austenite), 0.086 W/cm (martensite)|
|Thermal Expansion||11.0 x 10-6/°C (austenite), 6.6 x 10-6/°C (austenite)|
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