Abstract
The issues concerning the finishing of flat ceramic seals are presented in the paper. The treatment requirements demanded from the elements of that type cause, that necessary is application of grinding-in in the technological process. Such a precise abrasive treatment of flat surfaces of that type, requires the use of an appropriate suspended matter or abrasive paste. Many factors connected with metal grinding-in shield, components of abrasive suspended matter and the treatment’s technological conditions, have an impact on the treatment’s result. The manner and intensity of the suspended matter’s proportioning in the grinding-in are, are also of decisive nature. A standard, free manner of proportioning, in a continuous manner most often dipping or dropping, results in big losses of abrasive material. A part of abrasive micro-grains is quickly removed from the operating grinding-in shield by the rotating rings leading separators with treated elements and does not take part at all in machine cutting. It considerably increases the tool costs and has an unfavourable impact on the natural environment. Implementation of the forced abrasive suspended matter’s proportioning at the time of the machine grinding-in, considerably reduces these losses.
Highlights
The developed innovative proportioning system makes it possible to control appropriately the volume and frequency of the abrasive suspended matter’s applying on the specific place on the tool’s operating surface
The constructed test stand for one-side grinding-in of flat surfaces, is based on the construction of the lapping machine Abralap 380 (Fig. 1)
The system of the abrasive suspended matter’s applying (Fig. 4), makes it possible to apply a layer of the assumed thickness
Summary
The developed innovative proportioning system makes it possible to control appropriately the volume and frequency of the abrasive suspended matter’s applying on the specific place on the tool’s operating surface. It makes it possible to prepare the suspended matter of optimum viscosity. As it may be observed, the size and shape of the stain depend on the pre-set settings It may be found, that the system makes it possible to proportion the volume of a single suspended matter’s dose, what translates into the possibility of planning the total consumption of the abrasive suspended matter at the moment of planning the elements’ grinding-in process, taking into consideration their properties. Maintaining of a certain, assumed thickness of the applied layer on the lapping tool’s shield during the course of the whole grinding-in process, is possible [1,2,3,4]
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