blowing


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blowing

[′blō·iŋ]
(chemical engineering)
The introduction of compressed air near the bottom of a tank or other container in order to agitate the liquid therein.
(engineering)

blowing

1. See popping.
2. The upward movement of soil material at the base of an excavation or cofferdam as a result of groundwater pressure.

popping, blowing, pitting, pops

Shallow conical depressions, ranging in size from pinheads to diameters of ¼ in. (64 mm), just below the surface of a lime-putty finish coat; caused by the expansion of coarse particles of unhydrated lime or of foreign substances.
References in periodicals archive ?
The blowing process begins with discharge of air from an accumulator that chokes where the air enters the magazine.
Wide range of Hydrocerol chemical blowing agents and nucleating agent masterbatches can be used for foaming most all commonly used thermoplastic resins and blends.
The third paper will describe implementation of alternative blowing agents that improve polymer performance.
This earlier work had described thiocarbanilide's contribution to rapid viscosity development and subsequent cure rate, which are vital to entrapment of blowing agent gases during the sponge expansion process.
According to the company, Ecomate's high solubility, low molecular weight, high blowing efficiency, and low volatility allow for much lower use levels than either HFC-245fa or HCFC-141b.
Line of fluorochemical blowing agents includes Formacel Z-2 (HFC-152a), FDA approved for use in PS food service and packaging foams; Formacel S (HCFC-22)used in closed-cell polyurethane and polyisocyanurate foams; and Formacel Z-4 (HFC-134a) for polyurethane systems and appliance foams, and in PS insulating board.
The Blomax 24 rotary reheat model has 24 blowing stations and can produce up to 43,200 bottles/hr in sizes up to 1.
Options: Heat-setting, preferential beating, neck orientation, combined blowing and sterile filling operation.
Azodicarbonamide-based blowing agents in various plasticizers for foam acrylics, EVA, PE, and vinyl.
Tandem blowing reportedly doubles the productivity of a standard machine by blowing two rows of bottles--one from the top and one from the bottom--simultaneously.