Slush molding is an excellent method of producing open, hollow objects,including rain boots, shoes, toys, dolls and automotive products, such as protective skin coatings on arm rests, head rests and crash pads. The basic process of slush molding involves exposing a hollow mold to heat, filling a hollow mold with vinyl plastisol or vinyl powder compound, gelling an innerlayer or wall of plastisol or partially fused powder compound in the mold, inverting the mold to pour out the excess liquid plastisol or unfused powder
compound and then heating the mold again to fuse the vinyl compound which remains in the mold. The mold is then cooled and the finished part is removed.
Slush molding can be a simple hand operation for limited production, or an elaborate conveyorized system for long runs. This process can be a one pour method, where finished or semi-finished products can be made by one slushing step, or a multiple-pour method where two or more slushing steps are used.
The wall thickness of the slush molded part, made from powder compound at a given oven temperature, is determined by several factors: the thickness of the metal wall of the mold, the length of time the mold is preheated, and the amount and type of plasticizer in the compound.
Molds used in slush molding are produced from spun, machined or electroformed aluminum. Vinyl
powder compound will reproduce the surface finish of the mold, whether matte or glossy. Mold porosity, depending upon severity, may cause such detrimental effects as surface gloss reduction, pinholing, and voids in the molded part.
compound and then heating the mold again to fuse the vinyl compound which remains in the mold. The mold is then cooled and the finished part is removed.
Slush molding can be a simple hand operation for limited production, or an elaborate conveyorized system for long runs. This process can be a one pour method, where finished or semi-finished products can be made by one slushing step, or a multiple-pour method where two or more slushing steps are used.
The wall thickness of the slush molded part, made from powder compound at a given oven temperature, is determined by several factors: the thickness of the metal wall of the mold, the length of time the mold is preheated, and the amount and type of plasticizer in the compound.
Molds used in slush molding are produced from spun, machined or electroformed aluminum. Vinyl
powder compound will reproduce the surface finish of the mold, whether matte or glossy. Mold porosity, depending upon severity, may cause such detrimental effects as surface gloss reduction, pinholing, and voids in the molded part.
Other Topics
IC engine,
Air
Standard Cycles, Method
of Ignition, Gear Types,
mechanical
Engineering, Gears, spur gears,Worm gears,English books,Photoshop
tutorials,Physics files,Thamizh,Manufacturing,Gears pdf,Computer
science,Harry
potter,Best
100 english books,Face Gears,IC
engine,Metal
Casting,Sand
casting,SAND
Casting Quiz,Casting
patterns quiz,Sand
Casting Process,Patterns,Mechnical
Previous Years Gate Question Papers ,Mechanical-old-question-paper,Core
and Core Box,Shell
Moulding,Permanent
mold casting,Investment
Casting,Die
Casting,Centrifugal
Casting,Workshop
Technology Quiz,Milling
Quiz,Metal
Quiz,Mechanical
Process Quiz,Chemically
Bonded Molding Systems,Unbonded
Sand Processes,Green
Sand Molding,Gases
Iin Metal Casting,Plaster
Mold Casting,Ceramic
Mold Casting,Vacuum
Casting
