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Peter J Stewart-Hay

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Peter J Stewart-Hay

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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

  • Mr richard webb thanks user 'Peter J Stewart-Hay' in the forum message ' elongation'.
    kunena.thankyou 3 days ago
  • Peter J Stewart-Hay replied to the topic 'elongation' in the forum.
    From

    …..try the following manufacturing method….

    C1018 rod Reduction of area C1018rod Reduction of area
    % %
    .218” .218”
    .195 20 .190 24
    .175 19 .167 23
    .160 17 .149 21
    .146 16 .134 19
    .136 14 .122 17
    .127 12 .113 15
    .120 11 .105 13

    Expected tensile Expected tensile
    150 KSI 160 KSI

    If expected elongation is not met work with your rod supplier
    On special chemistry rods
    Read More...
    kunena.post 3 days ago
  • Peter J Stewart-Hay replied to the topic 'Cold Rolling Mill Identification' in the forum.
    Hello Gideon,

    We are not sure as to who manufactured the stand in the photograph. However, it looks a little light to be a ferrous stand.

    WE will not recommend a specific cold rolling machine but we suggest you use your query button and search for "Ferrous Cold Rolling Stands". There are many manufacturers and distributors around the World. They all would be pleased to work with you.
    Read More...
    kunena.post 11 days ago
  • We do not provide details of manufacturers' equipment, software or any other issues.
    Read More...
    kunena.post 21 days ago
  • The major wire drawing machine manufacturers have programs to calculate tensiles and die sequences.

    Also a die manufacturer ( Paramount die) have a program for sale which covers all your questions.

    In the case of the example ,

    With inlet rod of 1123 Mpa ( 145,000psi) the final tensile on a .086" wire will be (+,-) 245,000 psi
    Read More...
    kunena.post 27 days ago
  • Peter J Stewart-Hay replied to the topic 'drawing lineup' in the forum.
    Again,the Normal Ferrous Moderator is still unable to Login to this thread. Here is his, (Eduardo's) response:

    .. The drawing operation in two drawing passes at a very low speed (450FPM) should not give any problem
    on die life and residuals.

    Things to look at:

    1.-Inlet Rod.-
    a) Normal good surface quality
    b) Normal scale content
    c) Normal diameter tolerances

    2.- Mechanical descaler
    a) Be sure to keep the brushes clean and free of excessive scale
    b) Check the descaler performance .- as the wire leaves the descaler , place a clean cloth on the wire it should not show a black mark

    3.- Drawing Machine
    a) Keep the drawing machine clean , free of dirt or lubricant soap

    4.- Lubricants
    a) Normal drawing lubricants ( stereates)
    b) Keep the lubricant clean and free of residual scale
    c) If there is scale content in the lubricant, replace the lubricant

    I mention normal because the type of operation as it is mentioned, does not require any special requirements
    Read More...
    kunena.post 31 days ago