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Anti-Corrosion Methods and Materials, vol. 51 no. 3
Type: Research Article
ISSN: 0003-5599

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Article
Publication date: 1 July 1956

Leo Walter

Modern industrial instruments often have to be placed in surroundings which can easily corrode both outer and inner parts, resulting in, firstly, deterioration in…

Abstract

Modern industrial instruments often have to be placed in surroundings which can easily corrode both outer and inner parts, resulting in, firstly, deterioration in appearance and, secondly, breakdown of accuracy of measurement. In its early stages corrosion can obstruct the movement of inner working parts. In electronic instruments, for example, the contacts between, say, the socket of a valve and the wired or printed circuit might suffer. In this article questions of instrument design and panel design are discussed, the importance of correct installation and maintenance is emphasised and some examples of avoidable corrosion given.

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Anti-Corrosion Methods and Materials, vol. 3 no. 7
Type: Research Article
ISSN: 0003-5599

Article
Publication date: 1 February 2003

Fred F. Farshad and Thomas C. Pesacreta

The objectives of this study were to determine: the type of coating that minimized pipe surface roughness and how the choice of metrological instrument could influence…

1756

Abstract

The objectives of this study were to determine: the type of coating that minimized pipe surface roughness and how the choice of metrological instrument could influence pipe surface roughness data. The internal surface of pipe was coated with either phenolic, modified novalac, epoxy, or nylon material. Roughness of coated pipe was assessed with two linear surface profilers, a Dektak3ST® and a Hommel T1000, and a Dimension 3000® atomic force microscope (AFM). Arithmetic roughness (Ra), root mean square roughness (Rq), and mean peak‐to‐valley height (RZD), were statistically analyzed. The ability of RZD to focus on the extremes of height and depth on the surface made it a significant parameter for detecting features that would affect fluid flow in pipes.

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Anti-Corrosion Methods and Materials, vol. 50 no. 1
Type: Research Article
ISSN: 0003-5599

Keywords

Article
Publication date: 1 June 1978

C. Brooke

The tube is one of the most useful products of the fertile imagination of man. Liquids, gases and powdered solids may all be transported over long or short distances by…

Abstract

The tube is one of the most useful products of the fertile imagination of man. Liquids, gases and powdered solids may all be transported over long or short distances by the use of tubes, pipes and conduits and it is difficult to imagine many of the functions of modern life operating without their use. However no product is perfect and an attendant problem with the use of tubes is that their inner surface is entirely concealed and difficult to inspect yet it is here in most applications that corrosion and erosion take place, being revealed only by expensive and often catastrophic failure. The problem is exacerbated by the susceptibility of many tubing materials to inter‐granular attack resulting in localised pitting which may cause puncture and failure of the tube when most of the wall is still sound.

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Anti-Corrosion Methods and Materials, vol. 25 no. 6
Type: Research Article
ISSN: 0003-5599

Article
Publication date: 1 October 1944

THIS report summarizes the results of investigations made on various control units taken from German aircraft, and reveals the fact that a wide range of materials has been…

Abstract

THIS report summarizes the results of investigations made on various control units taken from German aircraft, and reveals the fact that a wide range of materials has been employed for both bellows and capsule types of units. Beryllium copper was used in one instrument only out of eleven examined, and also for Bourdon gauge tubing, but otherwise materials correspond closely with those used in British instruments, although such materials as K Monel sometimes used in Britain for capsules were not found.

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Aircraft Engineering and Aerospace Technology, vol. 16 no. 10
Type: Research Article
ISSN: 0002-2667

Article
Publication date: 1 October 1972

R.A. Ellis

Until recently liquid chromatography has been a somewhat neglected branch of science. However, the availability of precision equipment, and even complete instruments, has…

Abstract

Until recently liquid chromatography has been a somewhat neglected branch of science. However, the availability of precision equipment, and even complete instruments, has made possible liquid chromatography separations of a more advanced nature. For example, suitable detectors have been developed, and pumps are available which deliver accurate volumes of solvent under pressure.

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Pigment & Resin Technology, vol. 1 no. 10
Type: Research Article
ISSN: 0369-9420

Article
Publication date: 1 April 1942

R. Barrington Brock

THE use of manometers in the aircraft industry has extended very widely indeed since the outbreak of war, concurrently with the enormous development in aircraft instruments

Abstract

THE use of manometers in the aircraft industry has extended very widely indeed since the outbreak of war, concurrently with the enormous development in aircraft instruments themselves.

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Aircraft Engineering and Aerospace Technology, vol. 14 no. 4
Type: Research Article
ISSN: 0002-2667

Article
Publication date: 1 March 1999

Clifton P. Campbell

Instructional materials enhance the teaching/learning process by exhibiting information necessary to acquire knowledge and skills. Focuses on printed forms of…

1442

Abstract

Instructional materials enhance the teaching/learning process by exhibiting information necessary to acquire knowledge and skills. Focuses on printed forms of instructional materials and provides detailed information, including examples, on five types of job performance aids, three types of instruction sheets, and two types of modules. Checklists of considerations that affect the quality of finished products are also provided. Job performance aids (JPAs)provide procedural or factual guidance in the performance of tasks. They store essential details in a variety of functional forms for use just before or during task performance. Research shows that JPAs are a cost‐effective supplement or alternative to training. They reduce the time needed to master task performance and facilitate the transfer of learning from the training setting to the job. Instruction sheets assure that all trainees have the same complete and accurate information for performing practical work and for completing assignments. These sheets also help manage large groups of trainees with diverse abilities who are working simultaneously at several different tasks. Modules are carefully structured documents which facilitate self‐directed and self‐paced learning. While their components may vary, modules typically include learning objectives, an introduction, instructional content, directions, learning activities, and test questions with feedback answers. With modules, trainees assume personal responsibility for their progress. Regardless of the care used in their preparation, all types of instructional materials must be evaluated prior to general use. Presents a comprehensive quality control procedure for confirming effectiveness and value. This was prepared to enhance both formal classroom instruction and individual study. Figures, tables, checklists, appendices, and a glossary of keywords and terms, supplement the text in explaining the content.

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Journal of European Industrial Training, vol. 23 no. 2
Type: Research Article
ISSN: 0309-0590

Keywords

Article
Publication date: 1 June 1956

A thermoplastic welding gun. The enormous increase in the use of thermoplastic materials for construction calls for a device whereby they can be easily modified or…

Abstract

A thermoplastic welding gun. The enormous increase in the use of thermoplastic materials for construction calls for a device whereby they can be easily modified or repaired. One such instrument is the Griesheim TP welding gun. When in use, a stream of hot air emerges from its nozzle, causing both the edges of the component under repair and the welding rod to soften. The rod is applied to the seam by gentle hand pressure and, once there, the weld is accomplished by the interlocking of the molecule chains in the heated zones.

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Anti-Corrosion Methods and Materials, vol. 3 no. 6
Type: Research Article
ISSN: 0003-5599

Article
Publication date: 1 January 1978

The Equal Pay Act 1970 (which came into operation on 29 December 1975) provides for an “equality clause” to be written into all contracts of employment. S.1(2) (a) of the…

1023

Abstract

The Equal Pay Act 1970 (which came into operation on 29 December 1975) provides for an “equality clause” to be written into all contracts of employment. S.1(2) (a) of the 1970 Act (which has been amended by the Sex Discrimination Act 1975) provides:

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Managerial Law, vol. 21 no. 1
Type: Research Article
ISSN: 0309-0558

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