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At
Corrosion Clinic, our
NACE certified corrosion specialist is able to provide
efficient and proficient corrosion advisory services, corrosion consulting, in-house training, online and distance learning
corrosion courses, corrosion diagnosis,
failure analysis and expert witness in litigation and arbitration cases
related to corrosion, materials, metallurgy, paints & metallic coatings including
thermal spray metallizing, galvanizing, anodizing, chromating, phosphating, electroplating, electroless
plating, mechanical plating, and sheradizing or diffusion coating.
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Third-party review of designs, drawings and technical specifications to
identify potential corrosion risks, the compatibility of materials,
the forms of corrosion and their mitigation
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Third-party review
of design and specifications on materials, processes and coatings to
identify potential corrosion failures and any clauses in the
specification that may lead to potential dispute, arbitration or
litigation among the parties involved. Corrosion liability can be
avoided through proper specifications.
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Third-party review of contracts to identify potential corrosion liabilities
and advices on how to deal with them
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Third party
review of test reports and interpretations of test results
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Technical bid evaluation support
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Analysis of raw data from corrosion tests (both DC polarizations &
AC EIS
impedance measurements) and interpretation of corrosion test results
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Expert witness and support in litigation and arbitration
matters related to corrosion, materials, metallurgy, paints & metallic coatings including thermal spray metallizing, galvanizing,
anodizing, chromating, phosphating, electroplating, electroless
plating, mechanical plating, and sheradizing or diffusion coating.
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From: [removed]
Sent: Friday, May 14, 2004 4:43 PM
To: Qiu Jianhai (Assoc Prof)
Cc: [removed]
Subject: Seeking for Independent Review
Dear Prof Qiu,
We need your independent review on the topics shown below. Pls take a
look at it and justify on how soon you can give us the review in
writing. Also pls let us know what are the charges for this review. If
you need further information to justify any thing, pls let me know. I'll
also send you the thesis extract later on since i'm still preparing some
extract of it. However, i've also attached a part of it in the word
document.
A. We need your professional view on the following:
(1). Deposition of scale is expected to occur after
only about 200 to 400 hours of chiller operation.
(2). Hence, based on 12 hours daily operation 365 days
per year, we can work
out that the
BEST PRACTICE to do manual cleaning is 22 times/year.
B. For Anodic Corrosion Effect in condenser tubes. We need your
professional
view on the following (please refer to my powerpoint slides
attached)
(1). How serious is Anodic Corrosion effect on the normal
operation of the condenser tubes?
(2). For heat exchanger / condenser tubes maintenance, what
do you think
is the best method
/ strategy in preventing fouling and scaling?
(3). Our company has developed an automated heat exchanger
cleaning system
for the prevention of
fouling and scaling. You can check out our website
at [removed]
to have a basic understanding of the system. We need your
independent review of our
system as compared to systems available in the market.
If you need further
information to justify, please let us know.
C. The normal life of industrial chiller is quoted to be around 15-20
years as
referenced to the following materials [removed].
How reasonable is this statement in
the context of local and overseas environments?
Thanks. Best Regards,
[name removed]
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From: [a Spanish company]
To: <j.h.qiu@lycos.com>
CC:
Subject: Design Consultancy Enquiry
Date: Wed, 8 Sep 2004 18:09:06 +0200
Dear Sirs,
we are interested in contracting your services for an independent design
consultancy review for two industrial shell and tube heat exchangers (AET
type). These shell and tube heat exchangers are being supplied by our
Company, [name removed] (Engineering
Contractor Company), and the final Client is [company
name removed].
In order to give you a brief idea, the materials in question are:
- Tubesheets: Carbon Steel titanium cladded from the tube side process
and bundle cage in SS 316 L ( SS 316 L baffles, tie rods ,spacers,
sealing strips and bundle runners instead of carbon steel ).
- Tubes: Ti
- Baffle plates: SS316 L
- Process shell side fluid: Hydrogen (Wet Sour/HIC Service)
- Tube side fluid: Sea Water
- Shell Material: KCS HIC Resistant (Full details such as datasheets,
specifications and drawings will be provided later).
The consultancy would consist of a design review of this equipment with
particular regard to material choice for tubes, baffles and tubesheets
with respect to the possibility of galvanic corrosion and/or hydrogen
embrittlemet cracking between tubes, baffles and tubesheet materials
owing to the design conditions and process fluids. We would appreciate
it if you could provide us with a quotation and/or indicate your
standard rates for this type of consultancy including the delivery date
for your final technical report.
We look forward to hearing from you.
Best Regards,
[name removed] Project Engineer [company
name removed], Heat Transfer Division
Madrid (Spain)
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