NZQA registered unit standard
9284 version 3
Page 1 of 3
Title
Refine steel by the ladle treatment process
Level
4
Credits
Purpose
40
This unit standard is for people working in the steel
manufacturing sector.
People credited with this unit standard are able to: sample
steel; refine steel; distribute refined steel; and prepare
equipment for operation.
Classification
Steel Manufacturing > Steel Making
Available grade
Achieved
Explanatory notes
1
Definition
Company documentation refers to the documented procedures, manufacturer’s
manuals and selected reference texts for the equipment and process.
2
Legislation relevant to this unit standard includes but is not limited to – Health and
Safety in Employment Act 1992, Resource Management Act 1991.
3
This unit standard must be assessed in a workplace environment.
Outcomes and evidence requirements
Outcome 1
Sample steel.
Evidence requirements
1.1
Temperature tests meet company documentation for number and timing.
1.2
Samples sent to laboratory meet company documentation for number and
timing.
1.3
Samples sent to laboratory meet technical process specifications.
Range
Competenz
SSB Code 101571
specifications include but are not limited to – size, shape, surface
quality.
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
9284 version 3
Page 2 of 3
Outcome 2
Refine steel.
Evidence requirements
2.1
Lab results are interpreted to enable achievement of in-specification steel
chemistry.
2.2
Sampling and adjustment of steel chemistry are carried out in accordance with
company documentation.
2.3
Steel temperature and chemistry meet company documentation.
2.4
Check and control of slag condition conform with company documentation.
2.5
The reheating of ladle meets company documentation for reheated steel.
Outcome 3
Distribute refined steel.
Evidence requirements
3.1
Steel that is within specification for weight, temperature, and chemistry at the
end of the specified elapsed time, is distributed to the caster.
3.2
Decisions are made in accordance with company decisions about steel that is
out-of-specification at the end of the specified elapsed time.
Range
out-of-specification includes but is not limited to – by weight,
temperature, or chemistry.
Outcome 4
Prepare equipment for operation.
Evidence requirements
4.1
Condition of the lances is checked and the charge is carried out in accordance
with company documentation.
4.2
Electrodes are built in accordance with company documentation.
4.3
Gas argon is connected to the porous plug in accordance with company
documentation.
4.4
Maintenance of wire feeder operation is in accordance with company
documentation.
4.5
Floors are stocked in accordance with company documentation.
Competenz
SSB Code 101571
 New Zealand Qualifications Authority 2016
NZQA registered unit standard
Planned review date
9284 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
30 January 1997
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