Notice：
Novel automatic press except press material condition of structure itself, squeezing conditions such as pressure, time, temperature, material thickness, oil discharge resistance is increased oil effect of determinants.
Press, the pressure and the size of the pressed material actual compression than an exponential or power function relationship. Type (4-2) and measured values consistent (see Figure 2-5). In the other parameters (moisture, temperature, oil content unchanged, corresponding to press material maximum epsilon n value can be calculated from the corresponding pressure value (critical pressure). However, the pressure changes in the size range of larger (100 to 1600 kg / cm 2) and parametric many factors must be in accordance with the specific conditions and requirements to determine the value of the critical pressure.
The total pressure exerted by the press is transferred to the press through the working mechanism of the machine, which is used to overcome the resistance of movement of the oil in the channel, and to make it have a certain flow rate, and the other part is used to overcome the resistance of the particle.
(1) the pressure of the pressing process, the essence of which is to extract the oil from the press. However, the pressure, the pressure, the pressure and the changing law of the press have different effects on the squeezing effect.
The relationship between pressure and press material compression. Compression press material pressing process, is mainly due to compression of the solid pressed material inside and outside surface of the squeezing and squeezing grease to be caused. At the same time, the evaporation of water, drained away crumbs, also caused the pressed material shrinkage and some chemical conversion makes the density change etc. the gel after compression. Factors of condensation when pressing pressure is higher, the particle degree of plastic deformation is big, fat to more completely. However, in the condition of a certain pressure, a compression press material there is a limit, this time even if the pressure increased to the maximum of its compression is also very little, it is called incompressible incompressible. The starting point of the pressure, known as the "ultimate pressure" (or critical pressure).
The ratio of the pressing material to the front and back is called the actual compression ratio.
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