- MEM08019B - Electroplate protective finishes
Assessor Resource
MEM08019B
Electroplate protective finishes
Assessment tool
Version 1.0
Issue Date: May 2024
This unit applies to pre-treatment and application of protective finishes to a range of ferrous and non-ferrous materials using electroplating.
Use of plating techniques, solutions and compositions for protective finishes, recognition and assessment of impurities and imperfections and associated corrective actions are integral to all applications.
This unit applies to electroplating decorative finishes to household fittings, hardware, artefacts and accessories.
Processing may apply to manual, semi or fully automatic still or barrel plating environments and may include volume production and 'one-off' components. Use of plating techniques, solutions and compositions for protective finishes, recognition and assessment of impurities and imperfections and associated corrective actions are integral to all applications.
For surface preparation operations, Unit MEM08011B (Prepare surfaces using solvents and/or mechanical means) and Unit MEM08012B (Prepare surfaces by abrasive blasting [basic]) should be selected as appropriate.
Straightforward operation of electroplating process is covered by Unit (MEM08003C Perform electroplating operations).
Where pre-treatment operations only are carried out, Unit MEM08002C (Pre-treat work for subsequent surface coating) should be selected.
For basic inspection of completed or partly completed products produced by others Unit MEM15004B (Perform inspection) should be selected.
Where dogging/lifting is undertaken, the appropriate materials handling units should be selected.
For construction of anodes, shields/robbers etc., the appropriate fabrication units should be selected.
Band: A
Unit Weight: 6
This unit covers applying protective finishes to a range of ferrous and non-ferrous materials.
You may want to include more information here about the target group and the purpose of the assessments (eg formative, summative, recognition)
Prerequisites
Path 1
MEM07001B
Perform operational maintenance of machines/equipment
MEM08001B
Perform wire, jig and barrel load/unload work
MEM08003C
Perform electroplating operations
MEM13003B
Work safely with industrial chemicals and materials
MEM18001C
Use hand tools
Employability Skills
This unit contains employability skills.
Evidence Required
List the assessment methods to be used and the context and resources required for assessment. Copy and paste the relevant sections from the evidence guide below and then re-write these in plain English.
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package. | |
Overview of assessment | A person who demonstrates competency in this unit must be able to electroplate protective finishes. Competency in this unit cannot be claimed until all prerequisites have been satisfied. |
Critical aspects for assessment and evidence required to demonstrate competency in this unit | Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria, including required knowledge, and be capable of applying the competency in new and different situations and contexts. |
Context of and specific resources for assessment | This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job, that is the candidate is not in productive work, then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations. The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team. The assessment environment should not disadvantage the candidate. This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with electroplating protective finishes or other units requiring the exercise of the skills and knowledge covered by this unit. |
Method of assessment | Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways including direct observation, supervisor's reports, project work, samples and questioning. Questioning techniques should not require language, literacy and numeracy skills beyond those required in this unit of competency. The candidate must have access to all tools, equipment, materials and documentation required. The candidate must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials. |
Guidance information for assessment | |
Submission Requirements
List each assessment task's title, type (eg project, observation/demonstration, essay, assingnment, checklist) and due date here
Assessment task 1: [title] Due date:
(add new lines for each of the assessment tasks)
Assessment Tasks
Copy and paste from the following data to produce each assessment task. Write these in plain English and spell out how, when and where the task is to be carried out, under what conditions, and what resources are needed. Include guidelines about how well the candidate has to perform a task for it to be judged satisfactory.
Required skills |
Look for evidence that confirms skills in: monitoring and maintaining: conformance to thickness specifications anode/cathode ratio impurities/contamination performance of various ancillary equipment condition of electrical contacts condition of racks, jigs and barrels condition of rack coating cathode contacts assessing material condition for suitability for plating calculating/measuring: current and processing time concentration and pH of solutions required chemical/solution additions making selections of: correct treatment processes correct process parameters correct equipment taking corrective action adjusting solutions/times/reprocessing or additional processing carrying out appropriate mechanical/chemical pre-treatment reading and interpreting routine information on written job instructions, specifications and standard operating procedures. May include drawings following oral instructions performing calculations using formulae |
Required knowledge |
Look for evidence that confirms knowledge of: effects of plating process on different materials basic principles of chemistry, electro chemistry and metallurgy related to the process including: importance of maintaining satisfactory electrical contact methods for detecting unsatisfactory contact effects of build-up on cathode contacts properties of different base materials different pre-treatment processes and their application process parameters and their relation to each other differences between chromate conversion coatings types of defects, their causes and related corrective actions mechanical/chemical pre-treatment processes the purpose and application of simple tests including pH and concentration operating parameters of solutions including temperature, agitation rate and similar parameters acceptable appearances for each stage of operation and common abnormalities application of different equipment to the type of work processed and correct operation and cleaning requirements (e.g. of cleaning filters) solutions, solution compositions and operating ranges for processes relative to protective finishes, including cleaning/pre-treatment , electroplating and post treatment procedures for testing plate thickness safe working procedures for handling chemicals relative to protective finishes and for safely adding to baths procedures for measuring out materials eg use of scales, volumetric measurement devices level of impurities and permissible limits, effects of impurities and purification procedures for protective finish solutions different anode arrangements including use of baskets and bags, conforming anodes correct operation of anodes and appropriate remedial action effect of maintenance schedules on plant performance and performance requirements and basic maintenance checks for rectifier, bus bars, agitation, heating/cooling, extraction and tank linings etc. use and application of personal protective equipment relevant hazards and control measures related to the competency |
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included. | |
Treatment processes | Zinc, zinc alloys and tin |
Process parameters | Dwell time, current density, current temperature |
Equipment | Wire racks, handling equipment, barrels, jigs, shields, robbers, etc. |
Operating process parameters | Calculation and setting of treatment times and currents, bath pH, temperatures and densities, solution levels and compositions, purification procedures |
Maintain solutions | Typical tests for pH and concentration, calculation of adjustments to relevant solutions |
Adjustment | Strength of solutions, temperature range |
Anodes | Soluble, insoluble auxiliary anodes, etc. |
Maintain equipment | Anode condition, electrical contacts etc. |
Copy and paste from the following performance criteria to create an observation checklist for each task. When you have finished writing your assessment tool every one of these must have been addressed, preferably several times in a variety of contexts. To ensure this occurs download the assessment matrix for the unit; enter each assessment task as a column header and place check marks against each performance criteria that task addresses.
Observation Checklist
| Tasks to be observed according to workplace/college/TAFE policy and procedures, relevant legislation and Codes of Practice | Yes | No | Comments/feedback |
|---|---|---|---|
| Treatment processes are selected appropriate to the work requirements. | |||
| Process parameters are selected to achieve required finish. | |||
| Appropriate equipment is selected to achieve specified finish. | |||
| Operating/process parameters are set to produce required protective finish/specifications. | |||
| Surface condition of finished components is monitored and confirmed and abnormalities are identified. | |||
| Corrective actions are taken to rectify non-conforming conditions. | |||
| Pre-treatment processes are carried out, where applicable. | |||
| Solution compositions are checked and confirmed to specification/operating range. | |||
| Adjustment requirements/additions are identified. | |||
| Additions are made to adjust solution composition to correct operating range. | |||
| Purification procedures are carried out as necessary. | |||
| Anodes are maintained to ensure correct operation. | |||
| Performance of ancillary equipment is checked and remedial actions are taken as necessary. | |||
| Electrical contacts are maintained. | |||
| Process transfer equipment is maintained. |
Forms
Assessment Cover Sheet
MEM08019B - Electroplate protective finishes
Assessment task 1: [title]
Student name:
Student ID:
I declare that the assessment tasks submitted for this unit are my own work.
Student signature:
Result: Competent Not yet competent
Feedback to student
Assessor name:
Signature:
Date:
Assessment Record Sheet
MEM08019B - Electroplate protective finishes
Student name:
Student ID:
Assessment task 1: [title] Result: Competent Not yet competent
(add lines for each task)
Feedback to student:
Overall assessment result: Competent Not yet competent
Assessor name:
Signature:
Date:
Student signature:
Date: