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1. |
Record Nr. |
UNINA9910131029903321 |
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Titolo |
Handbook of hot-dip galvanization [[electronic resource] /] / edited by Peter Maass and Peter Peissker ; [translation, Christine Ahner] |
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Pubbl/distr/stampa |
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Weinheim, : Wiley-VCH, c2011 |
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ISBN |
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1-283-14093-4 |
9786613140937 |
3-527-63690-0 |
3-527-63688-9 |
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Descrizione fisica |
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1 online resource (486 p.) |
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Altri autori (Persone) |
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MaassPeter, Dr. rer. oer. |
PeisskerPeter |
AhnerChristine |
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Disciplina |
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Soggetti |
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Galvanizing |
Galvanizing - Safety measures |
Steel, Galvanized |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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1: Corrosion and Corrosion Protection; 1.1 Corrosion; 1.1.1 Causes of Corrosion; 1.1.2 Types of Corrosion; 1.1.3 Corrosion Phenomena; 1.1.4 Corrosive Stress; 1.1.4.1 Atmospheric Corrosion; 1.1.4.2 Corrosion in the Soil; 1.1.4.3 Corrosion in Water; 1.1.4.4 Special Corrosive Stress; 1.1.4.5 Avoidance of Corrosion Damages; 1.2 Corrosion Protection; 1.2.1 Procedures; 1.2.1.1 Active Procedures; 1.2.1.2 Passive Procedures; 1.2.2 Commercial Relevance; 1.2.3 Corrosion Protection and Environmental Protection; Appendix 1.A; 2: Historical Development of Hot-dip Galvanizing; References |
3: Surface-preparation Technology3.1 As-delivered Condition; 3.1.1 Basic Material; 3.1.1.1 Steel Composition; 3.1.2 Surface Finish; 3.1.2.1 Similar Contaminants; 3.1.2.2 Dissimilar Contaminants; 3.1.2.3 Defects on Steel Substrates; 3.1.3 Steel Surface Roughness; 3.2 Mechanical Surface-preparation Methods; 3.2.1 Blast Cleaning; 3.2.2 Barrel Finishing; 3.3 Chemical Cleaning and Degreasing; 3.3.1 Alkaline |
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Cleaner; 3.3.1.1 Composition; 3.3.1.2 Water; 3.3.1.3 Working Conditions; 3.3.1.4 Analytical Control, Service Life, Recycling; 3.3.2 Biological Cleaning; 3.3.3 Pickle Degreasing |
3.3.4 Other Cleaning Methods3.4 Rinsing of the Parts; 3.4.1 Carryover; 3.4.1.1 Surface Data; 3.4.1.2 Withdrawal, Dripping; 3.4.1.3 Carryover; 3.4.2 Calculation of Rinsing Processes; 3.4.3 Rinsewater Recirculation; 3.5 Pickling; 3.5.1 Material and Surface Condition; 3.5.1.1 Structure of the Oxide Layer; 3.5.1.2 The Material Steel; 3.5.1.3 Topography; 3.5.2 Hydrochloric-acid Pickle; 3.5.2.1 Composition; 3.5.2.2 Pickling Conditions; 3.5.2.3 Inhibition and Hydrogen Embrittlement; 3.5.2.4 Analytical Control, Recycling, Utilization of Residual Material; 3.5.3 Preparation of Cast Materials |
3.5.4 Dezincification3.6 Hot-dip Galvanizing Fluxes; 3.6.1 Fluxes on ZnCl2 /NH4Cl Basis; 3.6.1.1 Dry Galvanizing; 3.6.1.2 Wet Galvanizing; 3.6.2 The ZnCl2 /NaCl/KCl System; 3.6.3 Flux-induced Residues; References; Standards; Lifting Devices; 4: Hot-dip Galvanizing and Layer-formation Technology; 4.1 Process Variants; 4.1.1 Continuous Hot-dip Galvanizing of Steel Strips and Steel Wire; 4.1.2 Batch Galvanizing; 4.1.2.1 Dry Galvanizing Process; 4.1.2.2 Wet Galvanizing Process; 4.1.3 Special Processes; 4.2 Layer Formation in Hot-dip Batch Galvanizing Between 435°C and 620°C; 4.2.1 General Notes |
4.2.1.1 Low-silicon Range (0.28% Si ); 4.2.2 Influence of Melting Temperature and Immersion Time on Layer Thickness; 4.2.3 Influence of Heat Treatment of Steels Prior to Galvanizing; 4.2.4 High-temperature Galvanizing above 530°C; 4.2.5 Structural Analyses; 4.2.5.1 Crystalline Structure in the Temperature Range of 435-490°C; 4.2.5.2 Crystalline Structure in the Temperature Range of 490-530°C; 4.2.5.3 Crystalline Structure in the High-temperature Range of 530-620°C |
4.2.6 Holistic Theory of Layer Formation |
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Sommario/riassunto |
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Hot-dip galvanization is a method for coating steel workpieces with a protective zinc film to enhance the corrosion resistance and to improve the mechanical material properties. Hot-dip galvanized steel is the material of choice underlying many modern buildings and constructions, such as train stations, bridges and metal domes. Based on the successful German version, this edition has been adapted to include international standards, regulations and best practices. The book systematically covers all steps in hot-dip galvanization: surface pre-treatment, process and systems technology, environm |
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2. |
Record Nr. |
UNINA9910139454003321 |
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Autore |
Bloch Heinz P. <1933-> |
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Titolo |
Pump wisdom [[electronic resource] ] : problem solving for operators and specialists / / by Heinz P. Bloch |
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Pubbl/distr/stampa |
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Hoboken, N.J., : Wiley, 2011 |
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ISBN |
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1-5231-1837-7 |
1-283-09876-8 |
9786613098764 |
1-118-05673-6 |
1-118-05674-4 |
1-118-05672-8 |
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Descrizione fisica |
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1 online resource (226 p.) |
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Classificazione |
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Disciplina |
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Soggetti |
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Pumping machinery |
Hydraulic control |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Pump Wisdom : Problem Solving for Operators and Specialists; Table of Contents; 1. Principles of Centrifugal Process Pumps; Pump performance: Head and flow; Operation at zero flow; Impellers and rotors; The meaning of specific speed; Process pump types; Process pump mechanical response to flow changes; Recirculation and cavitation; The importance of suction specific speed; What we have learned; References; 2. Pump Selection and Industry Standards; Why insist on better pumps; ANSI and ISO versus API pumps; What we have learned; References; 3. Foundations and Base Plates |
Securing pumps in place-with one exceptionWhy not to install pump sets in the as-shipped condition; Conventional versus pre-filled base plate installations; Epoxy prefilled base plates; How to proceed if there is no access to specialist firms; What we have learned: Checklist of foundation and base plate topics; References; 4. Piping, Stationary Seals, and Gasketing; Pipe installation and support; Sliding supports and installation sequence deserve special attention; Monitoring pipe stress while bolting up; Flange leakage; What to do prior to gasket |
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insertion |
Spiral wound and kammprofile gasketsPipe, hydraulic tubing, or flexible connections?; Gusseting; Concentric versus eccentric reducers; Vibration problems in piping; What we have learned on piping and gasketing topics; References; 5. Rolling Element Bearings; Bearing selection overview and windage as a design problem; Radial versus axial (thrust) bearings; Oil levels, multiple bearings, and different bearing orientations; Upgrading and retrofit opportunities; Bearing cages; Bearing preload and clearance effects; Bearing dimensions and mounting tolerances; What we have learned; References |
6. Lubricant Application and Cooling ConsiderationsLubricant level and oil application; Issues with oil rings; Pressure and temperature balance in bearing housings; Cooling not needed on pumps with rolling element bearings; Oil delivery by constant level lubricators; Black oil; Lube application as oil mist (oil fog); Desiccant breathers and expansion chambers; What we have learned; References; 7. Lubricant Types and Key Properties; Lubricant viscosities; When and why high film strength synthetic lubricants are used; Lubricants for oil mist systems; What we have learned; References |
8. Bearing Housing Protection and Cost JustificationNoncontacting bearing protector seals; Contacting bearing protector seals; How venting and housing pressurization affect bearing protector seal performance; Cost justification overview; Advanced bearing housing (bearing protector) seal summary; What we have learned; References; 9. Mechanical Sealing Options for Long Life; Still using packing?; General overview of mechanical seals; All flush plans have advantages and disadvantages; Always obtain the full picture; Seal chamber pumping ring (circulating device) technologies |
Lessons apply to many services |
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Sommario/riassunto |
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Learn all the basics about pumps in one place. Clearly written by an ace consultant, this manual for operators and specialists in the petroleum industry gives readers a concise overview of the mechanics of various pumps and reviews the specifications to be considered before a pump is purchased and installed. The straight-forward text explains pump hydraulics without need of involved mathematics and provides expert advice on installing centrifugal pumps in process plants. The book also emphasizes the mechanical aspects of pumps as it delves into misunderstandings and oversights on bearings, sea |
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