Applying industrial coatings by electrophoretic or autophoretic methods

URN: SEMMPF328
Business Sectors (Suites): Materials Processing and Finishing Suite 3
Developed by: Enginuity
Approved on: 30 Mar 2020

Overview

This standard identifies the competencies you need to apply industrial coatings to various substrates using electrophoretic or autophoretic processes, in accordance with approved procedures. You will be required to access the appropriate specifications, to check that these are the current issue and to extract all necessary information in order to carry out the operations. The methods of applying the industrial liquid coatings will be by the automatic dipping processes of either cathodic or anodic electrophoresis and autophoresis. You will be expected to use specified/appropriate processes to assess the component and to pre-treat and post–treat the substrate, control the process and use ovens for drying and curing. You will be required to carry out all the necessary preparations to the base materials prior to coating them and this will include cleaning, degreasing, masking and other appropriate treatments.

Your responsibilities will require you to comply with organisational policy and procedures for the coating activities undertaken and to report any problems with these activities or with the materials and equipment used, that you cannot personally resolve, or are outside your permitted authority, to the relevant people. You will be expected to work with a minimum of supervision, taking personal responsibility for your own actions and for the quality and accuracy of the work that you carry out.

Your underpinning knowledge will provide a good understanding of your work and will provide an informed approach to applying phoretic coatings, using appropriate methods, techniques and procedures. You will understand the different coating materials and their application and will know about the ancillary pre-treatment and post treatment plant and processes, in adequate depth to provide a sound basis for carrying out the activities, correcting faults and ensuring the finished components are to the required specification.

You will understand the safety precautions required when carrying out the preparation and phoretic coating operations. You will be required to demonstrate safe working practices throughout and will understand the responsibility you owe to yourself and others in the workplace and towards the environment.


Performance criteria

You must be able to:

  1. work safely at all times, complying with health and safety legislation,  regulations, directives and other relevant guidelines
  2. follow relevant job instructions and specifications
  3. ensure the material surfaces to be treated are prepared for the coating operations
  4. check that the coatings equipment and treatment solutions are set up and maintained at required operating conditions and levels
  5. apply coatings according to operating procedures and to meet specifications
  6. check that the treated workpiece achieves the required characteristics and meets the coating specifications
  7. deal promptly and effectively with problems within your control and report those that cannot be solved
  8. ensure that work records are completed, stored securely and available to others, as per organisational requirements
  9. leave the work area in a safe condition on completion of the activities, as per organisational and legal requirements

Knowledge and Understanding

You need to know and understand:

  1. the specific safety precautions to be taken whilst carrying out the activities (including any specific legislation, regulations or codes of practice relating to the activities, equipment or materials)
  2. the health and safety requirements of the work area and the activities, and the responsibility these requirements place on you
  3. the hazards associated with  the activities, and how to minimise them and reduce risks
  4. the personal protective equipment and clothing (PPE) to be worn during the activities
  5. the types of specifications that are used during the coating activity
  6. how to assess component suitability for coating (to include methods of handling methods of pre-treatment, the coating material to use, the most efficient and appropriate method of application, the selection of the drying/curing process)
  7. how to assess the coating specification and/or end user requirements, to define the process and to meet the quality and performance standards of the final coating
  8.  how to handle the component to suit the application process
  9. the procedures for the handling, and safe use of coating materials and chemicals
  10. the preparation, mixing and confirmation of the correct parameters of the coating materials and chemicals to be used
  11. the setting up and confirmation of efficient use of the coating plant and equipment
  12. the cleaning and maintenance of the coating plant and equipment
  13. the simple, non-destructive testing procedures to ensure that colour, gloss, adhesion and other required performance qualities are achieved
  14. how to recognise coating defects and their prevention and/or correction
  15. how to minimise and handle waste materials (including the environmental impact of the materials you are using and the minimisation of this impact)
  16. the extent of your own responsibility and whom you should report to if you have problems that you cannot resolve

  17. how to access, use and maintain information to comply with organisational requirements and legislation


Scope/range


Scope Performance

  1. Apply industrials coatings by electro/autophoretic methods, carrying out all of the following:

    1. use the correct issue of process and other related specifications
    2. adhere to health and safety regulations, systems and procedures to realise a safe system of work
    3. ensure that the coating plant and equipment is correctly prepared for the electro/autophoretic coating operations
    4. carry out appropriate handling/jigging of the component
    5. clean all tools and equipment on completion of the   electro/autophoretic coating activities
    6. complete the production documentation (such as condition/pre-treatment of substrates, coating material preparation, equipment settings, confirmation of standard of finish)
    7. leave the work area in a safe and clean condition
  2. Apply coatings to two of the following types of component:

    1. flat components           
    2. complex components with multiple surfaces
    3. tubular components        
    4. fabricated components with welds
  3. Apply coatings using one of the following processes:

    1. anodic electrophoretic deposition
    2. cathodic electrophoretic deposition
    3. autophoretic deposition
  4. Apply coatings to two substrates from the following: either:

for electrophoretic process

1.  a ferrous component  or    
2.  a non-ferrous component   

or: for autophoretic process
3. two different grades of ferrous material

  1. Prepare for the coating activities by carrying out four of the following activities:

    1. conductivity               
    2. steam sealing
    3. chemical strengths    
    4. solids content
    5. masking
    6. pre-treat and assess the component prior to coating
    7. check process tank parameters (time and temperature)
  2. Apply coatings using the appropriate techniques to achieve all of the following requirements:

    1. correct film thickness     
    2. acceptable coating coverage, recesses and gaps
    3. gloss level           
    4. smooth surface free of defects
  3. Use two of the following consumables:

    1. masking tape 
    2. cleaning materials
    3. filters       
    4. other masking techniques
  4. Check coatings applied to components comply with one of the following quality and accuracy standards:

    1. military or aviation standards
    2. current industry standards and codes of practice
    3. international standards
    4. company standards and requirements
    5. customer standards and requirements

Scope Knowledge


Values


Behaviours


Skills


Glossary


Links To Other NOS


External Links


Version Number

2

Indicative Review Date

31 Mar 2023

Validity

Current

Status

Original

Originating Organisation

Semta

Original URN

SEMMPF328

Relevant Occupations

Engineering and Manufacturing Technologies, Manufacturing Technologies, Process Operatives, Process, Plant and Machine Operatives

SOC Code

8115

Keywords

Engineering; manufacturing; processing; coating; electrophoretic; autophoretic; deposition; anodic; cathodic; substrates