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Cost-Saving Preparation of Slips
The main focus of the presentation is the cost-effective production of slips in the dispersing mixer, the so-called MixSolver. It will be of particular interest to manufacturers of sanitary ceramics. However, the MixSolver also offers advantages for the preparation of spray slip, e.g. for manufacturers of wall and floor tiles and of technical ceramics.
For sanitary ceramics, the quality of the slip plays a key role in slip casting or pressure filtration. Single and multi-stage processes are normally used for the preparation of slips made from clay and hard materials. Single-stage processes are operated with ball mills, while in multi-staged processes the clay-based raw materials are initially dissolved in stirring containers, and the hard materials are then added. Because the power input is low, both processes involve long process times. The use of a MixSolver offers significant advantages here.
Thanks to the unique operating principle of the Eirich mixer and its versatility in terms of potential applications, it is capable of processing all consistencies encountered in the ceramic industry, from powdery to viscoplastic or even liquid. It is also often possible to combine multiple preparation steps in a single unit.
ceramitec: Hall B6, Booth 201/302
Ceramic Binder for Higher Green Strength
In the production of technical ceramics, the binder plays a decisive role: It must ensure the appropriate viscosity of the liquid ceramic slip and exhibit a high green strength in the cold-pressed mold. In addition, the binder should burn without residue during the firing process. Kuraray, a specialty chemicals company based in Hattersheim am Main, offers polyvinyl alcohol (PVOH) as a temporary ceramic binder with the Kuraray POVAL grades — including low-ash variants.
Kuraray Europe in Hattersheim is a wholly owned subsidiary of the Kuraray Group, based in Tokyo (Japan), which has around 10,000 employees worldwide and a business volume of more than EUR 4 billion.
Further information: www.kuraray.eu