African Fusion March 2015

3 / 44

March 2015 AFRICAN FUSION 1
Published four times a year and
mailed out together with
Mechanical Technology by:
Crown Publications cc
Crown House
Cnr Theunis and Sovereign Streets
Bedford Gardens 2007
PO Box 140
Bedfordview 2008
Tel: (011) 622 4770
Fax: (011) 615 6108
Editor: Peter Middleton
E-mail:
Advertising: Norman Welthagen
E-mail:
Publisher: Karen Grant
Director: Jenny Warwick
Cover design: Air Liquide
Production & layout: Gail Smith
Circulation: Karen Pearson
Subscriptions: Wendy Charles
Printed by: Tandym Print
March 2015
Contents
32
28
6
36
FEATURES
4 SA’s Young Welder, 2015
Jaco vanDeventer, a product of Steinmüller’s appren-
ticeship scheme, has won this year’s Young Welder
of the Year competition, which was held at the SAIW
during February.
5 Changing of the guard
Following the resignation of Jim Guild, this article
looks at his accomplishments since his tenure began
back in 2000.
6 Introduction to thermal spray coatings
During January, the SAIW and the Thermal Spray As-
sociation of Southern Africa (TSASA) hosted thermal
spray specialist, Heidi Lovelock to present a one-day
seminar at Emperor’s Palace. African Fusion sum-
marises the opening session.
18 Small bore pipe socket weld inspection using
phased-array UT
This paper from the 67th IIW Conference is about the
use of phased array ultrasonic testing (UT) for small-
bore pipe socket welds on nuclear power plants.
24 Microstructural study of trial weld joints for steam
turbine rotors
Also from last year’s IIWConference, this paper details
procedure development for welding turbine rotors for
steam power plant using creep resistant rotor steels
and the hot-wire GTAW welding process.
28 Wind Tower fabrication: the DCD way
African Fusion visits DCD Wind Towers in the Coega
industrial development zone (IDZ) and talks to pro-
duction manager, Leonard Jauka.
32 Robot welding, catalytic converters and PE
African Fusion visits Yaskawa PE and takes a tour of a
local state-of-the art catalytic converter manufactur-
ing facility.
35 Welding of super duplex stainless steels
This article outlines voestalpine Böhler Welding’s
super-duplex stainless steel (SDSS) solutions and
consumables for the oil and gas industry.
36 Weco’s HSL solution: the smarter choice
African Fusion attends the launch of Smarter Weld-
ing Africa’s Weco brand and talks to Smarter’s CEO,
Fernando Amaral and Weco director Giorgio Toniolo.
REGULARS
3 Jim’s comment
12 SAIW News
16 Front cover story: Total solutions for tank fabrication
36 Welding and cutting forum
40 Component refurbishment using the PTA process
For thewelding of large storage
tanks, a partnership between
local automation specialist
Mazolutions, Lincoln Electric
and Chinese-based All Time
is dramatically improving the
quality and productivity of
storage tank construction for
the oil and gas sector. African
Fusion talks toAndrewMasuret,
MD of Mazolutions, about the
technology.