00947nam0-2200313---450 99000576624020331620190403125028.0000576624USA01000576624(ALEPH)000576624USA0100057662420080520e19881910|||y0itaa50------bafrefrProblèmes de psychologie affective [microforma]Théodule RibotParis, BNF, 1988.- 3 microfichesRiprod. dell'ed.: ParisF. Alcan, 1910, 172 p. compless.RIBOT,Théodule402958ITSA20111219990005766240203316Dipar.to di Filosofia - SalernoDFMICR C RIB4858 FILMICR C RIB4858 FILBKFIL20121027USA01152620121027USA011615Problèmes de psychologie affective1082188UNISASA002600200935nam a2200277 i 450099100061860970753620020509173004.0000124s1997 it ||| | ita 8846401131b1138511x-39ule_instPARLA211964ExLDip.to Scienze pedagogicheita301Tomasi, Luigi128370La teoria implicita /Luigi TomasiMilano :Angeli,c1997441 p. ;22 cm.La scuola sociologica di Chicago ;1Bibilografia: p. 411-430.SociologiaStudi americani.b1138511x21-09-0601-07-02991000618609707536LE022 301 TOM01.0112022000007092le022-E0.00-l- 00000.i1156942601-07-02Teoria implicita507454UNISALENTOle02201-01-00ma -itait 3105335nam 2200661 a 450 991100484660332120200520144314.00-08-094600-397866120114740-8155-1888-91-282-01147-21-282-02740-90-08-095052-30-8155-1893-5(CKB)111056552542920(EBL)566683(OCoLC)700919052(SSID)ssj0000072923(PQKBManifestationID)12006791(PQKBTitleCode)TC0000072923(PQKBWorkID)10103808(PQKB)10755934(MiAaPQ)EBC566683(EXLCZ)9911105655254292020010525d2002 uy 0engur|n|---|||||txtccrRotational molding technology /Roy J. Crawford, James L. ThroneNorwich, N.Y. Plastics Design Library/William Andrew Pub.c20021 online resource (419 p.)Plastics Design LibraryDescription based upon print version of record.1-4557-7562-2 1-884207-85-5 Includes bibliographical references and indexes.Front Cover; Rotational Molding Technology; Copyright Page; CONTENTS; CHAPTER 1. INTRODUCTION TO ROTATIONAL MOLDING; 1.0 Introduction; 1.1 The Process; 1.2 The Early Days; 1.3 Materials; 1.4 Advantages and Disadvantages; 1.5 General Relationships between Processing Conditions and Properties; References; CHAPTER 2. ROTATIONAL MOLDING POLYMERS; 2.0 Introduction; 2.1 General Characteristics of Polymers; 2.2 Polymers asPowdersand Liquids; 2.3 Polyethylene Types; 2.4 Polypropylene; 2.5 PVC-Plastisols, Drysols, and Powdered Flexible Compounds; 2.6 Nylons; 2.7 Other Polymers; 2.8 Liquid Polymers2.9 In-Coming MaterialEvaluation2.10 Product Testing Protocols and Relationship to Polymer Characteristics; 2.11 Desirable Characteristics of a Rotational Molding Resin; References; CHAPTER 3. GRINDING ANDCOLORING; 3.0 Introduction; 3.1 General Issues Relatingto Grinding; 3.2 Particle Size Distribution; 3.3 Particle Shape; 3.4 Dry Flow; 3.5 Bulk Density; 3.6 Factors Affecting Powder Quality; 3.7 Grinding Costs; 3.8 Micropelletizing; 3.9 Polyvinyl Chloride; 3.10 Coloring of Plastics for Rotational Molding; References; CHAPTER 4. ROTATIONAL MOLDING MACHINES; 4.0 Introduction4.1 Types of Rotational MoldingMachines4.2 Machine Design Considerations; 4.3 The Oven; 4.4 Cooling; 4.5 Process Monitors; 4.6 Servicing; 4.7 Advanced Machine Design; References; CHAPTER 5. MOLD DESIGN; 5.0 Introduction; 5.1 Mold Materials; 5.2 Mechanical and Thermal Characteristics of Mold Materials; 5.3 Mold Design; 5.4 Calculation of Charge Weight; 5.5 Venting; 5.6 Mold Surface Finish; 5.7 Mold Releases; References; CHAPTER 6. PROCESSING; 6.0 Introduction to Heating; 6.1 General Anatomy of the Rotational Molding Cycle; 6.2 General Process Description; 6.3 Powder Behavior6.4 Characteristics of Powder Flow6.5 Rheology of Powder Flow; 6.6 Heat Transfer Concepts Applied to Rotational Molding; 6.7 Heating the Mold; 6.8 Heating Powder; 6.9 Tack Temperature; 6.10 Mold Cavity Air Heating Prior to Powder Adhesion to Mold Surface; 6.11 Bed Depletion; 6.12 Particle Coalescence; 6.13 Densification; 6.14 Phase Change During Heating; 6.15 The Role of Pressure and Vacuum; 6.16 Mathematical Modeling of the Heating Process; 6.17 Total Oven Cycle Time; 6.18 Cooling and the Optimum Time for Removal from Oven; 6.19 Some Comments on Heat Transfer During Cooling6.20 Thermal Profile Inversion6.21 Cooling and Recrystallization; 6.22 Air Cooling - Heat Removal Rate; 6.23 Water Cooling - Heat Removal Rate; 6.24 Pressurization; 6.25 Part Removal; 6.26 Effect of Wall Thickness on Cooling Cycle Time; 6.27 Overview and Summary of Thermal Aspects of the Rotational Molding Process; 6.28 Introduction to Liquid Rotational Molding; 6.29 Liquid Polymers; 6.30 Liquid Rotational Molding Process; 6.31 Process Controls for Liquid Rotational Molding; 6.32 Foam Processing; References; CHAPTER 7. MECHANICAL PART DESIGN; 7.0 Introduction; 7.1 Design Philosophy7.2 General Design ConceptsThis book clarifies and quantifies many of the technical interactions in the process. It distinguishes itself from other books on the subject by being a seamless story of the advanced aspects of the rotational molding process. There are seven chapters within the book. The US market for rotational molding products was one billion pounds in the year 2000. The growth of the rotational molding industry has grown at 10 to 15% per year. With this growth has come an increasing need for details on the complex, technical aspects of the process.Plastics Design LibraryRotational molding of plasticsRotational molding of plastics.668.4/12Crawford R. J(Roy James),1949-1824580Throne James L.1937-19304MiAaPQMiAaPQMiAaPQBOOK9911004846603321Rotational molding technology4392623UNINA