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Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge

Elements and Performance Criteria

  1. Select treatments and processes/equipment for producing protective finishes
  2. Monitor and control protective finish processes and operating conditions
  3. Maintain solutions for protective finishes
  4. Maintain equipment for protective finishes

Required Skills

Required skills

Look for evidence that confirms skills in

monitoring and maintaining

conformance to thickness specifications

anodecathode ratio

impuritiescontamination

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

calculatingmeasuring

current and processing time

concentration and pH of solutions

required chemicalsolution additions

making selections of

correct treatment processes

correct process parameters

correct equipment

taking corrective action

adjusting solutionstimesreprocessing or additional processing

carrying out appropriate mechanicalchemical pretreatment

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 buildup on cathode contacts

properties of different base materials

different pretreatment 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

mechanicalchemical pretreatment 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 eg of cleaning filters

solutions solution compositions and operating ranges for processes relative to protective finishes including cleaningpretreatment 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 heatingcooling extraction and tank linings etc

use and application of personal protective equipment

relevant hazards and control measures related to the competency

Evidence Required

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 supervisors 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


Range Statement

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.