That's what Chrysler needs now: growth, not shrinkage, new products that push up sales and market share, not more plant closings.
The curing effect was evaluated on compositions made with different commercial shrinkage-compensating products.
However, product shrinkage may be more prevalent at this time of year when the number of price promotions is particularly high.
The effect of the product shrinkage was also included directly in the model.
The model simultaneously incorporated shrinkage of the product, changes in effective moisture diffusivity and dependence of thermal properties on water content and temperature.
Closed-form equations are derived for the volume fraction of the unreacted binder (the considered calcium sulfate), unreacted water, chemical shrinkage and hydration product (gypsum).
However, this process produces parts with poor dimensional precision and may result in product shrinkage, residual stress and other effects depending on the complexity of parts' geometric shape, size, or a combination of both.
Four gating system parameters, namely ingate height, ingate width, runner height, runner width, were optimized with consideration of multiple performance characteristics including filling velocity, shrinkage porosity and product yield.
The model incorporates recently measured kinetic parameters, intra- and extra-particle heat transfer, and particle shrinkage as gaseous products are formed.
It is found that the gravitational overload influences wave velocity, degree of expulsion, sample shrinkage as well as product microstructure.
