NZQA registered unit standard
8324 version 3
Page 1 of 3
Title
Demonstrate knowledge of ladle furnace steelmaking
Level
3
Credits
Purpose
4
This unit standard is for people working in the steel
manufacturing sector.
People credited with this unit standard are able to demonstrate
knowledge of: ladle furnaces; ladle furnace processes; and the
measurement of performance of ladle furnaces.
Classification
Steel Manufacturing > Steel Manufacturing - Supporting Skills
Available grade
Achieved
Explanatory notes
Definition
Company documentation refers to the documented procedures, manufacturer’s manuals,
and selected reference texts for the equipment and process.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of ladle furnaces.
Evidence requirements
1.1
The characteristics of types of ladle furnaces are described in terms of their
function, operation, and application.
Range
1.2
Service support systems are explained in terms of the function and interrelationship with each other.
Range
1.3
evidence is required of two types of ladle furnace.
service support systems include but are not limited to – electrical,
control, data capture, water, fume extraction.
The characteristics of ladle furnace ancillary equipment is described in terms of
its function, operation, and application.
Range
Competenz
SSB Code 101571
ancillary equipment includes but is not limited to – lances,
injectors, probes, additive weighers.
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
8324 version 3
Page 2 of 3
1.4
The types, characteristics, and function of the refractories utilised in ladle
furnaces are described in terms of company documentation.
1.5
The types, function, and application of ladle furnace consumables are described
in terms of company documentation.
Range
consumables include but are not limited to – electrodes, porous
plugs lances, gases.
Outcome 2
Demonstrate knowledge of ladle furnace processes.
Evidence requirements
2.1
The characteristics of ladle furnace refining are outlined in terms of the physical
and chemical processes.
Range
2.2
The refining additives are identified and described in terms of their application
and use.
Range
2.3
physical and chemical processes include but are not limited to –
stirring, refining, heating.
additives include but are not limited to – recarburisers, alloys,
fluxes, deoxidants.
The types, identifying characteristics, and function of ladle slags are described
in terms of company documentation.
Outcome 3
Demonstrate knowledge of the measurement of performance of ladle furnaces.
Evidence requirements
3.1
The application and implications of performance indicators are identified and
described in terms of company documentation.
Range
3.2
performance indicators may include but are not limited to –
kWh/tonne, electrodes/tonne, residence time;
evidence of three is required.
The identity, application, and effect of quality control factors for ladle furnaces
are described in terms of company documentation.
Range
Competenz
SSB Code 101571
quality control factors include but are not limited to – chemistry,
temperature, active oxygen.
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
Planned review date
8324 version 3
Page 3 of 3
31 December 2012
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
17 December 1996
31 December 2012
Revision
2
18 July 2000
31 December 2012
Rollover and
Revision
3
15 March 2012
N/A
Consent and Moderation Requirements (CMR) reference
0013
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA,
before they can report credits from assessment against unit standards or deliver courses
of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMR). The
CMR also includes useful information about special requirements for organisations wishing
to develop education and training programmes, such as minimum qualifications for tutors
and assessors, and special resource requirements.
Comments on this unit standard
Please contact Competenz qualifications@competenz.org.nz if you wish to suggest
changes to the content of this unit standard.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016