ã€ALUMINIUM CHINA NETWORK】 Recently, Prof. Shen Mingli, a researcher of the High Temperature Protective Coatings Group of the Shenyang Institute of Metals, Chinese Academy of Sciences, recently developed a subversion of the traditional “green†aluminizing technology, enabling the preparation of advanced aluminide coatings to be as nontoxic as a vacuum coating. Emissions, no harmful element doping requirements, coating anti-oxidation performance is superior to ordinary aluminide coatings.
An angle grinder, also known as a side grinder or disc grinder, is a handheld power Tool used for grinding (abrasive cutting) and polishing. Although developed originally as tools for rigid abrasive discs, the availability of an interchangeable power source has encouraged their use with a wide variety of cutters and attachments.
Angle grinders can be powered by an electric motor or compressed air. The motor drives a geared head at a right-angle on which is mounted an abrasive disc or a thinner cut-off disc, either of which can be replaced when worn. Angle grinders typically have an adjustable guard and a side-handle for two-handed operation. Certain angle grinders, depending on their speed range, can be used as sanders, employing a sanding disc with a backing pad or disc. The backing system is typically made of hard plastic, phenolic resin, or medium-hard rubber depending on the amount of flexibility desired.
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It is reported that high-performance thermal diffusion aluminide coatings, including platinum modification, active element modified aluminide coating, etc., are one of the main methods for high-temperature corrosion protection of advanced aero-engine and gas turbine turbine blades. However, in the traditional powder-embedding, slurry-diffusion, and gas-phase heat-diffusing aluminide coating preparation techniques, there are stubborn ills of coating harmful element doping and toxic gas release. In response to the above problems, the “green†aluminizing technology developed by the research group is based on the effect of vacuum high-density aluminum plasma irradiation, and it can achieve no harmful effects by enhancing the diffusion mechanism of high-density aluminum ion deposition, injection, sputtering, and irradiation. Highly efficient, controllable, non-toxic gas emissions from element-doped high-performance aluminide coatings. 