Presentation is loading. Please wait.

Presentation is loading. Please wait.

Other processing techniques Introduction Fiber pulling Foams Membranes Reactive injection Varnish and paintings Glues Crosslinked resins – Pouring – Compression.

Similar presentations


Presentation on theme: "Other processing techniques Introduction Fiber pulling Foams Membranes Reactive injection Varnish and paintings Glues Crosslinked resins – Pouring – Compression."— Presentation transcript:

1 Other processing techniques Introduction Fiber pulling Foams Membranes Reactive injection Varnish and paintings Glues Crosslinked resins – Pouring – Compression – Injection compression – Injection molding Composites – Open tool – Closed tool

2 Fiber pulling Requirements – Resistance (chemical, aging) – Mechanical properties – Biological effect – Appearance Processing – Melt – Solution  Dry process  Wet process introduction melting controlled melt transport cooling conditioning greasing Roll up packaging granules heated grid melt pump filter and die air Vapor chamber oil disc barrels bobin bobin drive

3 Foams – grouping Structure – Open pores – Closed pores Properties – Flexible – Hard – Structural, integrated Initiation of the bubbles Initiation of the bubbles – Evolution of dissolved gases – Fluids with low boiling point – Chemical reaction – Foaming Growing – Pressure difference – Interfacial stress – Bubble size – Size of the interface – Melt viscosity

4 Foams – structure soft PU foam integrated foam

5 Foams – structure and fixing Integrated foam PE foam – Polyfoam Integrated foam PE foam – Polyfoam

6 Foams – processing of structural foam extruder Foaming gas Drive Float Nitrogen Hydraulic liquid Injection pump Melt Die Stationery platen Tool Pressure decreasing valve Non-returning valve

7 Foams – PU foam processing Reactions Process, steps: introduction of components, homogenization; creaming; end of foaming reaction; gelation; post polymerization

8 Membrane technology – mechanism of separation Physical, filtering Swelling, permeation Processing – Melt – Solution, dry – Solution, wet 011010 2 10 3 10 4 10 5 Radius (nm) Gas diffusion Hyper filtering Ultra filtering Micro filtering Filtering Dialysis Electro dialysis Particle Colloid Macromolecule Small molecule ion

9 Membrane technology - characteristics

10 Membrane technology – structure Introduction Restrained material Product Filtering layer Gel layer Porous skin Globular layer Hollow matrix Lower skin Porous carrier Glassy skin Rubbery covering Closed pore

11 Membrane technology – precipitation technique Introduction of solution Separation knife Spillway Drain Gel container Tap water Flow meter Washing tank Drain Separation knife Rolling up Barrel Textile barrel Tightening barrels

12 Membrane technology – industrial membrane filters

13 Membrane technology – roll module

14 Tire processing – vulcanization additives Vulcanization Sulfur Peroxides Additives Crosslinking Accelerator Activator Metal soap Inhibitor Stabilizing agent Filler Filler

15 Tire processing – structure Functions Load bearing Shock absorver Velocity Bearing moment Road contact Safety EconomicParts Surface Wall Core Surface Wall Core

16 Tire processing - structure halobuthyl insulation Metal core Textile layer Two polyester layers Two steel pants Two polyamide layers Surface model Surface 7.9-8.7 mm dept Special wall and parts

17 Reactive injection molding - process Tank Introduction Feedback Dry air Mixing chamber Tool Hydraulic pumps Dosing pumps

18 Reactive injection molding – mixing chamber To the tank RecirculationMixing From the dosing pump Hydraulic oil Mixture

19 Reactive injection molding - technology

20 Crosslinked resins – pouring and compression Upper platen Leading pins Material Tool hollow Open tool Closed tool Pouring – bubbles Compression – thin wall products, long cycles, without insert

21 Crosslinked resins - fröccssajtolás Upper tool Piston Compression head Lower tool Upper grid Lower grid Closing piston Pre- chamber Platen Material Closed tool Piston upPiston down

22 Crosslinked resins – injection molding Differences from traditional injection molding Low shearing Accurate temperature regulation Mendable barrel Two or more barrels

23 Fiber reinforced composites – processing in open technologies Interfacial forming Laminating Resin spraying Fiber rolling Centrifugal pouring

24 Fiber reinforced composites – pultrusion, continuous impregnating Separation film Shaping unit Table Glass fiber, rowing Resin Pull out Crosslinking

25 Other processes – varnish, paintings and glues Varnish and paintings Liquid materials Film propertiesComponents Crosslinking materials Solvents Pigments Additives Film forming Evaporation Melt Dispersion Adsorption Mechanism of cementation Mechanical linking Interdiffusion AdsorptionGlues Melt glues Solution Dispersions in water Activated glues Film adhesives Polymer glues Pressure sensitive glues


Download ppt "Other processing techniques Introduction Fiber pulling Foams Membranes Reactive injection Varnish and paintings Glues Crosslinked resins – Pouring – Compression."

Similar presentations


Ads by Google