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Peter J Stewart-Hay

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Peter J Stewart-Hay

14
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About Me

Personal Information

Gender
Male
About me
A university trained Professional Mechanical Engineer, registered in the Province of Ontario, Canada.

A wire and cable manufacturing engineering specialist with over 35 years hands on experience.

Company Information

Company
Stewart-Hay Associates
Address
Unit 51, 1814 Shore Road
London, Ontario Canada
N6K 0C6
City / Town
London
State
Ontario
Country
Canada
Land phone
519 6413212
Website
http://www.Stewart-Hay.com

Background

College / University
U of M
Graduation Year
1968
Degree/Certifications
B Sc. M.E.
Skills and Expertise
A university trained Professional Mechanical Engineer, registered in the Province of Ontario, Canada.

A wire and cable manufacturing engineering specialist with over 35 years hands on experience.

Recent activities

  • kunena.thankyou 5 hours ago
  • Peter J Stewart-Hay replied to the topic 'Magnet Wire Springback Part 2' in the forum.
    Dear Mr. Ajalloueian,

    From now on please do not add questions or other statements to old and archived threads. Instead, start up a new thread. Your action caused confusion and delay. Thank you.

    As far as your question goes, I did contact Mr. Burke but for some reason, he is unavailable. Thus you will just have to be patient.

    I also suggest you talk with a very qualified metallurgical engineer or metallurgist at your local university in order to generate some thought on this issue.
    Read More...
    kunena.post 2 days ago
  • Dear Mr. Ajalloueian,

    From now on please do not add questions or other statements to old and archived threads. Instead, start up a new thread. Your action caused confusion and delay. Thank you.

    As far as your lubricant question goes, you do not want any damage to the magnet wire so keep the temperature as low as possible. Moreover, talk it over with your enamel manufacturer.
    Read More...
    kunena.post 2 days ago
  • kunena.post 9 days ago
  • Peter J Stewart-Hay created a new topic ' Springback Part 2' in the forum.
    Dear Richard Burke

    Thank you so much for prior information. i increase the anneal temperature and get better result. but i still have this problem
    and hear that our wire is hard and difficult to insert in motor. i did a test on the wire size 0.800 mm grade -2 with 11 enamel passes and the result are: Rp0,2%: 130MPa - Rm (tensile Strength): 240MPa - Elongation: 39%
    what do you think about this result?
    Now i am going to change the dies of my RBD machine. i want to order dies with grain size 25 micron.
    may i know your opinion?
    Read More...
    kunena.post 9 days ago
    • PETER MAY 2016
    photos 21 days ago
  • Peter J Stewart-Hay replied to the topic 'Running XLPE on a PVC Extruder' in the forum.
    Hello again,

    This is a pretty complicated subject.

    PVC screws are designed for high output without burning the PVC. They have deeper channels than PE screws to provide sufficient mixing without high shear.

    XLPE extruder screws are designed for low shear and a stable melt pool but stay away from Maddock, Egan, Pineapple and Pin type mixing screws.
    See www.ptonline.com/columns/extrusion-barrier-screws-and-mixers

    I suggest you first read about barrier screws at:
    www.ptonline.com/articles/how-to-compare-barrier-screws
    and then get a quotation for the latest cable XLPE barrier screw design from Maillefer at:
    www.maillefer.net/en/
    Provide them with the complete information on your extruder and PVC screw. Then ask them to give you a sketch of their quoted XLPE barrier screw.
    Read More...
    kunena.post 39 days ago