LEADER 00938nam a2200253 i 4500 001 991002171179707536 005 20020503161858.0 008 001103s1974 it ||| | ita 035 $ab10326480-39ule_inst 035 $aEXGIL98626$9ExL 040 $aBiblioteca Interfacoltà$bita 082 0 $a880.8001 100 1 $aMasaracchia, Agostino$0168862 245 10$aCiviltà politica ateniese :$bantologia di poeti e prosatori attici /$cAgostino Masaracchia 260 $aRoma ; Bari :$bLaterza,$c1974 300 $a182 p. ;$c20 cm. 490 0 $aCollezione scolastica. N. s. 650 4$aLetteratura greca$xAntologie 907 $a.b10326480$b17-02-17$c27-06-02 912 $a991002171179707536 945 $aLE002 Gr. IV D 18$g1$i2002000733405$lle002$o-$pE0.00$q-$rl$s- $t0$u0$v0$w0$x0$y.i10384145$z27-06-02 996 $aCiviltà politica ateniese$9200214 997 $aUNISALENTO 998 $ale002$b01-01-00$cm$da $e-$fita$git $h0$i1 LEADER 01090nas 2200337- 450 001 9910907082103321 005 20241126213016.0 035 $a(OCoLC)1433132957 035 $a(CKB)4920000004407324 035 $a(CONSER)--2024271103 035 $a(EXLCZ)994920000004407324 100 $a20240510b18381851 k-- a 101 0 $aeng 135 $aur||||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aSpringfield republican 210 1$aSpringfield, Mass. :$cSamuel Bowles 215 $a1 online resource 311 08$a2997-7665 607 $aSpringfield (Mass.)$vNewspapers 607 $aHampden County (Mass.)$vNewspapers 607 $aMassachusetts$zHampden County$2fast$1https://id.oclc.org/worldcat/entity/E39QbtfRv7wYBdGfWhHrRm37xc 607 $aMassachusetts$zSpringfield$2fast$1https://id.oclc.org/worldcat/entity/E39PBJptVjRHpjyR9rG78hYXVC 608 $aNewspapers.$2fast 676 $a071.3 906 $aNEWSPAPER 912 $a9910907082103321 996 $aSpringfield republican$94296053 997 $aUNINA LEADER 05557nam 2200733Ia 450 001 9910822496503321 005 20200520144314.0 010 $a9781118511206 010 $a1118511204 010 $a9781283645317 010 $a1283645319 010 $a9781118511183 010 $a1118511182 010 $a9781118511169 010 $a1118511166 035 $a(CKB)2670000000242487 035 $a(EBL)1031837 035 $a(OCoLC)810933110 035 $a(SSID)ssj0000753943 035 $a(PQKBManifestationID)11424326 035 $a(PQKBTitleCode)TC0000753943 035 $a(PQKBWorkID)10708512 035 $a(PQKB)11625697 035 $a(MiAaPQ)EBC1031837 035 $a(Au-PeEL)EBL1031837 035 $a(CaPaEBR)ebr10604005 035 $a(CaONFJC)MIL395781 035 $a(Perlego)1012924 035 $a(EXLCZ)992670000000242487 100 $a20120806d2012 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 00$aHandbook of troubleshooting plastics processes $ea practical guide /$fedited by John Wagner 205 $a1st ed. 210 $aHoboken, NJ $cWiley$d2012 215 $a1 online resource (506 p.) 300 $aDescription based upon print version of record. 311 08$a9780470639221 311 08$a0470639229 320 $aIncludes bibliographical references and index. 327 $aHandbook of Troubleshooting Plastics Processes: A Practical Guide; Contents; Preface; List of Contributors; Part 1: Troubleshooting Basics; 1 The Economics of Troubleshooting Polymer Processing Systems; 1.1 Introduction; 1.2 Economic Incentives and Necessities; 1.3 Troubleshooting Resources and Their Cost; 1.4 Managing Resources and Costs; 1.5 Troubleshooting Techniques and Their Relative Costs; 1.6 Case Histories; 1.6.1 Single Screw Extrusion Instability; 1.6.2 Compounding Extruder Catastrophic Failure; 1.6.3 Polymer Degradation During Melt Processing; 1.7 Conclusions; References 327 $a2 Troubleshooting Philosophy2.1 Introduction; 2.2 Troubleshooting Methodology; Bibliography; 3 Statistical Tools for Trouble Shooting a Process; 3.1 Introduction; 3.2 Basic Statistical Concepts; 3.2.1 Histogram; 3.2.2 Scatter Diagram; 3.3 Sample Mean and Standard Deviation; 3.4 Design of Experiments (DOE); 3.4.1 Factorial Design; 3.4.2 Fractional Factorial Design; 3.5 Process Capability; 3.6 Control Charts; 3.7.1 Central Limit Theorem; 3.7.2 Variable Data Control Charts; 3.7.3 Control Charts for Attribute Data; References; Bibliography; Statistics; Design of Experiments 327 $aStatistical Process ControlPart 2: Extrusion Processes; 4 Single Screw Extrusion; 4.1 Introduction; 4.2 Process Description; References; 5 Troubleshooting the Co-rotating Fully Intermeshing Twin-screw Compounding System; 5.1 Introduction; 5.2 Equipment Description; 5.3 Troubleshooting; 5.3.1 What is Troubleshooting?; 5.4 Tools of the Successful Troubleshooter; 5.4.1 Experience; 5.4.2 Vent Flow Problem; 5.5 Product, Process and Equipment Knowledge; 5.5.1 High Discharge Pressure Problem; 5.5.2 Barrel Temperatures Higher than Set Points Problem; 5.5.3 Climbing Discharge Temperature Problem 327 $a5.5.4 Gels and Un-melts in the Extrudate Problem5.5.5 Holes or Bubbles in the Extrudate Problem; 5.5.6 Process Surging Problem; 5.6 Conclusion; References; 6 Troubleshooting for Injection Molding; 6.1 Introduction; 6.1.1 The Basic Approach; 6.2 Understanding Temperature Control; 6.3 Product Shift to a Different Machine; 6.3.1 Calculate the New Pressure Settings; 6.3.2 Procedure; 6.4 Part Weight as an Analytical Tool; 6.4.1 Example - Part Weight for Process Variability Analysis; 6.4.2 Long Term Variability Analysis; 6.4.3 Short Term Variability Analysis; 6.4.4 Variability Evaluation 327 $a6.4.5 Process Benchmarking for Quality6.4.6 Benchmark Evaluation; 6.4.7 Summary; 6.5 Part Weight as Dimensional Aimpoint Control; 6.5.1 Unconstrained Process; 6.5.2 Partially Constrained Process; 6.5.3 Constrained Process; 6.5.4 Warpage; 6.5.5 Relationship of Shot Weight and Hydraulic Pressure; 6.6 Determining the Gate Freeze-Off Time; 6.6.1 Procedure to Determine the Freeze-Off Point; 6.6.2 Time Analysis; 6.6.3 Pressure Procedure; References; 7 Blown Film; 7.1 Introduction; 7.2 Process Description; 7.2.1 Extruders; 7.2.2 Dies; 7.2.3 Process Cooling 327 $a7.2.4 The Bubble Collapsing Process and Systems 330 $a This handbook provides a framework for understanding how to characterize plastic manufacturing processes for use in troubleshooting problems. The 21 chapters are authored by well-known and experienced engineers who have specialized knowledge about the processes covered in this practical guide. From the Preface: "In every chapter, the process is described and the most common problems are discussed along with the root causes and potential technical solutions. Numerous case studies are provided that illustrate the troubleshooting process. Mark A. Spalding, The Dow Chemical Compa 606 $aPlastics$xMolding$vHandbooks, manuals, etc 606 $aInjection molding of plastics$vHandbooks, manuals, etc 615 0$aPlastics$xMolding 615 0$aInjection molding of plastics 676 $a668.4/1 686 $aTEC009010$2bisacsh 701 $aWagner$b John R$090748 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910822496503321 996 $aHandbook of troubleshooting plastics processes$94074759 997 $aUNINA