The lining of aluminum silicate material masonry is repaired by SHS method, so that the service life of the lining can be prolonged by 20% to 40% compared with the service life of the basic lining; or the lance can be sprayed onto the surface of the furnace lining of the steelmaking furnace with an air carrier and the SHS reaction can be performed. 25% longer life than flame-sprayed linings. In addition, the use of SHS can also be made of carbon-containing refractories and spinel refractories, such as: reduction of MgCO3 with aluminum, can be made of spinel - carbon SHS refractories; periclase, silicone organic resin, aluminum powder For raw materials, spinel refractories can be synthesized using the SHS method. The preparation process of SHS refractories is simple and the productivity is high. Raw ore can be directly used as raw materials. At the same time, the final product can be obtained once in the SHS process without going through the intermediate stage.
After the SHS reaction occurs, it reaches a high temperature of 1700-2000e in the combustion process. This temperature can not only ensure the synthesis of refractory materials, but also ensure that the refractory phases are integrated by the ceramics, thus solving the performance requirements that cannot be achieved by the traditional process methods. To overcome the shortcomings of poor ceramic bonding. SHS material combines high strength, slag corrosion resistance, thermal shock resistance and other advantages. Replacement of some existing gap materials (especially special parts), castables, furnace linings, magnesia, and magnesia spinel carbonaceous refractory bricks with SHS refractories is a very meaningful process with a wide range of applications. prospect.
However, in the production and application of SHS refractories, there are still some problems in the following aspects: theoretical research on the self-propagating refractories theoretical research is still not perfect. The reactions carried out during the synthesis of SHS refractories are very complex. There are both combustion reactions and the solid-solid reaction between the SHS product and the new phase generated between the aggregate and the additive. How to describe the combustion temperature in such a complex system, How to calculate theoretically, especially the dynamics of SHS or macrostructure dynamics, lacks in-depth and systematic research.
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BRIEF INTRODUCTION
Henan Yuteng Grinding Material Co., Ltd. is located in Kaifeng City, Henan Province. Is a set of production, research and development, service as one of the grinding agent, grinding, polishing products professional company, specializing in the production and sales of coated grinding tools derived ancillary products: flocking sand disc, blade, all kinds of special-shaped grinding disc, sponge grinding block, steel paper disk, ring sand belt, sand ring and automotive polishing products.
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