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عدد المساهمات : 18962 التقييم : 35392 تاريخ التسجيل : 01/07/2009 الدولة : مصر العمل : مدير منتدى هندسة الإنتاج والتصميم الميكانيكى
| موضوع: كتاب Engineering Polyurethanes - RIM Part and Mold Design Guide الجمعة 13 مايو 2022, 4:24 pm | |
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أخواني في الله أحضرت لكم كتاب Engineering Polyurethanes - RIM Part and Mold Design Guide BaySystems
و المحتوى كما يلي :
TABLE OF CONTENTS Introduction PART DESIGN 5 The RIM Process 6 Material Descriptions Chapter 1 MATERIAL SELECTION CRITERIA 9 Aesthetic Considerations 10 Functional Considerations 10 Economic Considerations Chapter 2 GENERAL PART DESIGN 13 Part Stiffness 13 Wall Thickness 15 Ribbing Design and Configuration 17 Ribbing Direction 18 Draft 19 Bosses 21 Holes, Grooves and Slots 23 Inserts 23 Metal Stiffening Inserts 24 Wood Stiffening Inserts 24 Threaded Inserts 25 Undercuts 25 Snap Fits, Wire Guides and Hinges 26 Fillers 27 Warpage in Part Design 27 Creep Considerations 27 Fatigue Considerations 28 Back Molding Chapter 3 SOLID MATERIALS 29 Wall Thickness 29 Rib Design and Configuration 30 Radii/Fillets Chapter 4 FOAMED MATERIALS 31 Foam Rise and Flow 31 Wall Thickness 32 Rib Design and Configuration 33 Radii/Fillets 33 Bosses 34 Structural Analysis Considerations Chapter 5 COMPOSITE MATERIALS 35 Glass Mat 36 Reinforcements 36 Radii/Fillets 37 Pads 37 Preforms 38 Finishes Chapter 6 POSTMOLDING OPERATIONS 39 Finishing 39 Pigmentation 40 In-Mold Coatings 40 Patching 40 Postmold Painting 40 Textures 41 Decals and Silk-Screening 41 Assembly Operations 41 Screws 42 Adhesives 43 P0stfabrication 43 Nailing/Stapling/Planing 43 Recycling Polyurethanes3 TABLE OF CONTENTS Introduction PART DESIGN 5 The RIM Process 6 Material Descriptions Chapter 1 MATERIAL SELECTION CRITERIA 9 Aesthetic Considerations 10 Functional Considerations 10 Economic Considerations Chapter 2 GENERAL PART DESIGN 13 Part Stiffness 13 Wall Thickness 15 Ribbing Design and Configuration 17 Ribbing Direction 18 Draft 19 Bosses 21 Holes, Grooves and Slots 23 Inserts 23 Metal Stiffening Inserts 24 Wood Stiffening Inserts 24 Threaded Inserts 25 Undercuts 25 Snap Fits, Wire Guides and Hinges 26 Fillers 27 Warpage in Part Design 27 Creep Considerations 27 Fatigue Considerations 28 Back Molding Chapter 3 SOLID MATERIALS 29 Wall Thickness 29 Rib Design and Configuration 30 Radii/Fillets Chapter 4 FOAMED MATERIALS 31 Foam Rise and Flow 31 Wall Thickness 32 Rib Design and Configuration 33 Radii/Fillets 33 Bosses 34 Structural Analysis Considerations Chapter 5 COMPOSITE MATERIALS 35 Glass Mat 36 Reinforcements 36 Radii/Fillets 37 Pads 37 Preforms 38 Finishes Chapter 6 POSTMOLDING OPERATIONS 39 Finishing 39 Pigmentation 40 In-Mold Coatings 40 Patching 40 Postmold Painting 40 Textures 41 Decals and Silk-Screening 41 Assembly Operations 41 Screws 42 Adhesives 43 P0stfabrication 43 Nailing/Stapling/Planing 43 Recycling Polyurethanes4 TABLE OF CONTENTS Introduction MOLD DESIGN Chapter 7 GENERAL MOLD DESIGN CONSIDERATIONS 47 Part Size/Clamping Pressure 48 Mold Costs 49 Shrinkage 49 Dimensional Tolerances Chapter 8 GATE DESIGN 51 Mixing Head 52 Aftermixers 53 Edge Gating 54 Foamed Systems 54 Dam Gates 55 Solid Systems 56 Fan Gates 58 Ball Check 58 Center-Gated Direct Fill Chapter 9 PARTING-LINE CONSIDERATIONS 62 Mold Sealing 63 Mold Venting 64 Mold Filling Chapter 10 OTHER MOLD DESIGN CONSIDERATIONS 65 Mold Temperature Control 66 Demolding Methods 68 Movable Cores and Inserts 69 Mold Design for Slots 69 Shear Edges
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