By John Durkee Ph.D. P.E.

ISBN-10: 0323225209

ISBN-13: 9780323225205

High-precision cleansing is needed throughout many sectors, together with aerospace, safety, clinical machine production, pharmaceutical processing, semiconductor/electronics, and extra. during this accomplished reference paintings, solvent cleansing apparatus is punctiliously lined with a spotlight at the engineering information of its operation and choice. Key info is equipped along useful information, giving scientists and engineers in a number of sectors the knowledge they wish not just to decide on the right kind computer within the first position, but in addition the right way to function it successfully and efficiently.

Low emission open-top vapor degreasers, enclosed machines of the vacuum and pressurized sort, cosolvent machines, and adsorption of "tailpipe emissions" are coated intimately and entirely illustrated in colour. This distinctive e-book covers fabric identified via designers and brands of solvent cleansing machines, yet now not gathered and arranged for the good thing about users.

The complete insurance supplied through John Durkee makes this ebook suitable and well timed not just for readers who desire to understand extra approximately how solvent cleansing gear works but additionally those who find themselves stressed from environmental regulators or company administration to discover powerful possible choices and people engaged in non-solvent cleansing operations who're unhappy with their cleansing results.

  • Clear, straight forward factors of ways quite a few different types of cleansing solvents can be controlled to wash parts
  • Full-color, hand-drawn illustrations and images of the real inner sections of solvent cleansing machines
  • Design calculations of working parameters in solvent cleansing machines

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Additional resources for Cleaning with Solvents: Methods and Machinery

Example text

Every cooled and cleaned basket of parts has this effect as it is rinsed. Every one! The reason this is so is that the thermal masses of the vapor cloud and the loaded parts basket are highly unequal. The vapor cloud is made of solvent vapor; the parts basket and parts are made of metal, glass, or plastic, and have several decades more thermal mass than does the vapor cloud. · · This means that the vapor cloud is easily destroyed by entry of parts (and basket29), but It is also easily reformed by solvent vapor generated by the heater in the boil sump e once the parts have passed through it and entered the boil sump.

7 F (125 C) from the solvent’s normal boiling point to get a preferred 46 Recall that good practice requires the top cover to always be closed except when the parts basket enters and leaves the “open-top” degreaser. 28 coolant temperature. 5 was used to make a selection of a coolant. 9 F (75 C) were taken as the acceptable temperature difference between coil walls and solvent boiling point, the selection of preferred coolants would not change e however, the refrigeration duty, operating cost, cycle time, and solvent emission rate would change.

18 · · Increase the freeboard dimension, as above, and as claimed by Roger Cormack in USP 4,246,116. Add additional refrigeration capacity to the freeboard, as claimed by Bob Ramsey in USPs 5,142,873 and 5,048,548. 36). Strengthen the seal between the degreaser’s freeboard area and the cover, as also claimed by Roger Cormack in USP 5,945,016 and Thomas Sisbarro in USP 5,216,736. Cormack’s claims are unusual in that their embodiment has two covers e one in the middle of the machine in between refrigeration coils and one at the top of the degreaser.

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Cleaning with Solvents: Methods and Machinery by John Durkee Ph.D. P.E.

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