Alumina ceramic manufacturers will introduce alumina ceramics and injection molding knowledge to you
Alumina ceramic manufacturers say that when choosing ceramics, pay attention to check whether the alumina ceramic coating is fine. This coating can bring many benefits to the ceramic, it will not be damaged in use, and it can last longer under the protection of aluminum oxide. And the use of ceramics can also be more at ease. This new processing technology has also brought more markets to ceramics, which can provide you with a variety of choices.
Alumina ceramic manufacturers say that when processing ceramics, this coating can be just in case, and it can improve our ceramic technology to a higher level. And in appearance, this coating is also very beautiful and can be designed in many shapes. Such reprocessing can improve the overall shape and increase the value of ceramics.
Alumina ceramic manufacturers say that in terms of design and shape, alumina ceramic coated ceramics also have many advantages. This design concept allows people to choose their favorite ceramics, which can not only ensure market acceptance, but also expand more market scope.
Alumina ceramics manufacturers say that alumina ceramics, also known as precision ceramics, special ceramics or high-tech ceramics, are highly selected raw materials, produced according to special manufacturing processes, can precisely control chemical composition, and have excellent performance. Widely used in high-tech and industrial fields such as microelectronics, nuclear reactors, aerospace, magnetic fluid power generation, artificial bones, and artificial joints.
Alumina ceramics are very different from ordinary ceramics in composition and manufacturing process. Ordinary ceramics are made by three processes of raw material preparation, green body molding, and kiln firing. Most alumina ceramics are produced by powder sintering. In terms of molding process, due to the high hardness of ceramics, it is difficult to cut and process, especially for non-aligned products with complex shapes. After molding and sintering, they are finished products without further processing.
Alumina ceramic manufacturers say that in order to meet this requirement, people imitate the injection molding technology of the polymer material industry to produce plastic parts and process alumina ceramic products, and have achieved satisfactory results. Ceramic injection molding technology is to add thermoplastic resin, thermosetting resin, plasticizer and friction reducer to the ceramic powder to make the ceramic powder a viscous elastic body, and then inject the heated and mixed slurry into the metal mold from the nozzle, and cool and solidify.
Alumina ceramic manufacturers say that the injection molding principle of alumina is basically the same as that of plastic. In order to obtain a dense and uniform injection molded body, the concentration of ceramic powder should be higher. However, if it is too high, the moldability will be deteriorated. In order to improve the fluidity of the mixed billet, the viscosity of the dispersant polymer system should be reduced. As pretreatment, it is very important to improve the dispersibility of ceramic powder. In order to improve the fluidity of the polymer, appropriate plasticizers and lubricants need to be added.
Alumina ceramic manufacturers say that the general alumina raw material has a particle size of 1m, add a binder (or additive), and mix thoroughly. During the mixing process, the ceramic powder is wetted and coated with the binder, and they all become a homogeneous mixture before injection molding. After cooling, drying and crushing, the pellets suitable for feeding the hopper of the injection molding machine can be obtained.