Design material selection

The problem of acquiring complete knowledge of candidate material grades should be resolved in cooperation with the raw material suppliers. It should be recognized that selection of the favorable materials is one of the basic elements in a successful product-configuration design, material selection, and conversion into a finished product (Appendix A PLASTICS DESIGN TOOLBOX). 

SEEBA workshop on Supply Chain Management Meeting Electronics Customer Environental Requirements, 30 April 2003, Centre for Sustainable Design, Farnham, UK Envirowise (2001) ENDS Report 321, Envirowise revamp brings advice on cleaner product design, October 2001. Envirowise is funded by the UK Department of Trade and Industry. See www.envirowise.org Apple (2005) Apple states its environmental policy with respect to materials at http //www.apple.com/ environment/design/materials/selection. html... 

A complete design includes consideration of all aspects of the equipment specification such that the item could be built and operated. These aspects include the mechanical design, materials selection, fabrication requirements, operational details, safety features, versatility (e.g. turn down), economic considerations, etc. The scope (i.e. depth) of the design should be clearly specified by the supervisor. 

Safety Standard for Hydrogen and Hydrogen Systems, Guidelines for Hydrogen System design, Materials selection, Operations, Storage, and Transportation, Document NSS 1740.16, NASA. 

Safe management and accounting of tritium will be crucial for the acceptance of fusion as an environmentally benign power source. ITER will be routinely fuelled with mixtures of D and T, and tritium retention in plasma facing materials with CFC PFCs has emerged as a primary concern with strong implications for in-vessel component design, material selection, operational schedule and safety. 

The corrosion engineer can play a major role in system design, material selection, process or environmental control, and remediation. The focus of these efforts should not necessarily be the complete elimination or avoidance of corrosion, but rather the selection of the most cost-effective means of corrosion control and abatement. 

If a failure occurs, analyze it carefully. Look first at the points covered above, and note any discrepancies in design, material selection and construction. Then look for any environmental changes, or perhaps the presence of something of which you were not previously informed. When you have completed this, turn to the following tabulations. Note which items of failure you observe. There may be several. Now read carefully the list of those causes that can lead to each observed problem. Make a list of everything on each list and underline those that appear on two or more lists. 

D) Cleaner Product Design => Materials Selection Minimising Quantity End Of Life Manufacturing Steps Manufacturing Process Life Cycle Analysis... 

The mine idler s failure work presents by inflexibility or stuck. The practical experience requires a good performance of idler s life, reliability, rotational resistance, sealing performance, as well as noise and vibration. To address these requirements, one must control strictly various aspects as the design, material selection, manufacturing, assembly, testing and working environment. However,... 

To obtain dimensionally correct parts, warpage must be estimated, then reduced as far as possible by means of structural design, material selection and processing. 

A complex PEM electrolysis system with 100 MW is definitely more than a big electrolysis stack and a gathering of components. It must rather be integration of design, material selection and technical engineering on one hand and the interaction of electrochemical and electro technical subsystems on the other hand. Additional big-style production know-how, a transparent security and safety concept as well as an experienced and competent commissioning and service organization must be available. Paired with over 15 years of experience in research and development of PEM electrolysis these factors build a solid fundament for the realization at Siemens. 

In this context, the safety margin is the result of special provisions in design, material selection, construction, maintenance and quality assurance. 

According to the experience in different States, very often different standards for design, material selection and construction quahty are applied in the same project for the different disciphnes (mechanical, dvU and electrical). An early assessment of the consistenq of the respective safety margins and relevant uncertainty levels and of their agreement with the general safety requirements for the project should be carried out in the different design tasks. 

A successful plastic product depends on the optimization of each of the following four principal components part design, material selection and handhng, tool design and construction, and processing/machine capabilities. 

Corrosion control in steam-generating systems is by a combination of design, material selection, water treatment, and... 

This chapter has covered some of the stress loading situations other than simple tensile, compressive and bending loads encountered by plastics parts. The unique characteristics of plastic materials of certain types make them especially suited to resist the specific stress conditions. With proper part design, material selection and modification the designer can make parts that will perform well under unique stress conditions. 

Mold filling is considered with various factors of part and mold designs. Material selection and process setup have to be considered to ensure that the mold can be filled volumetrically. 

It follows from most premature failures being attributable to human error, that most such failures could be prevented by appropriate action at the design, material selection and production stages. Leaving aside lapses in quality control, this means selecting materials and a design that are satisfactory for the service conditions, which in turn imphes that an analysis needs to be carried out to make predictions of the long term performance of the product. 

Deficiencies in design, material selection and control may have far reaching implications. In some cases a seemingly small lapse has been disastrous or at least very expensive. 

Mechanisms-Causes Design Material selection Manufacturing Field maintenance... 

Answer by Author Flex lines have been evaluated in transfer operations under relatively low velocity and pres sure conditions. With careful design, material selection, and fabrication techniques observed, I see no reason why they should not be satisfactory under more severe conditions of pressure and velocity. 

M. M. Farag and E. El-Magd, An integrated approach to product design, materials selection, and cost estimation. Mater. Design, 13 323-327,1992. 

In simplified Chinese, covers all aspects of mould die making from around the world, from the design, materials selection and design file converting to machining and production of the finished mould or die. The content also covers the various applications of moulds and dies, e.g. for forging, stamping, injection and extrusion. 

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