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RESEARCH METHODOLOGY COOLING ABILITY OF AEROSTATIC SUPPORTS
Abstract
One of the main factors influencing the accuracy of the obtained lumber is the rigidity and stability of saws. In the process of sawing woodcutting tools heated. This phenomenon can cause a loss of rigidity and stability of saws. A log frames and band saws negative influence of heating can be compensated the additional tension and setting directing. Particular importance is the heating of circular saws due to the appearance of a temperature gradient along the radius in the process of sawing wood. Upon reaching the temperature gradient along the radius of the disk the critical value, it may lose stability of elastic equilibrium and sawing will be impossible. One way to increase the thermal stability of circular saws is creation of the initial tension by various methods, which are not fully solving the problem. Also reduce the influence of temperature gradient on the stability of saws can be increasing of their thickness, which increases power inputs on sawing and the volume of received filings. There are various ways of supply water to peripheral portion of the saw, but they have some significant disadvantages which complicate their use. Proposed to use for cooling of circular saws aerostatic directing. Due to a dramatic expansion of air around saw can be achieving a reduction of temperatures gradient. In metallurgy extensively used various jet systems for cooling and heating the metal. Existing research in metallurgy cannot be applied to the aerostatic directing because of significant differences in their design and parameters. The paper proposes a method of performing research cooling ability aerostatic supports.
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