Carrying out chromic acid anodising operations
URN: SEMMPF236
Business Sectors (Suites): Materials Processing and Finishing Suite 2
Developed by: Enginuity
Approved on:
2020
Overview
| This standard identifies the competences you need to carry out material finishing operations by chromic acid anodising methods, in accordance with approved procedures. You will be expected to confirm with the authorised person, such as your immediate supervisor, that the equipment is ready for the anodising operations to be performed and that all the required components/materials and consumables are available. You will be required to operate the chromic acid anodising equipment, in line with safe working practices and approved procedures, continuously monitoring the anodising operations and, where necessary, making minor adjustments or seeking help from the authorised person to make the required adjustments, in order to ensure that the work output is to the required quality. Meeting production targets will be an important issue and your production records must show consistent and satisfactory performance. Your responsibilities will require you to comply with organisational policy and procedures for the chromic acid anodising activities undertaken and to report any problems with these activities that you cannot personally resolve, or are outside your permitted authority, to the relevant people. You will be expected to work to instructions, with a minimum of supervision, taking personal responsibility for your actions and for the quality of the work that you carry out. Your underpinning knowledge will be sufficient to provide a sound basis for your work, and will enable you to adopt an informed approach to applying chromic acid anodising procedures. You will have an understanding of the chromic acid anodising process and its application and will know about the equipment, materials and consumables in adequate depth to provide a sound background for carrying out the activities, recognising and reporting anodising defects and ensuring that completed components are to the required specification. You will understand the safety precautions required when working with chromic acid anodising equipment and solutions. You will be required to demonstrate safe working practices throughout. You will also understand your responsibilities for safety and the importance of taking the necessary safeguards to protect yourself and others in the workplace. |
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 work instructions and specifications for chromic acid anodising operations 3. ensure the material surfaces to be treated are prepared for the finishing operations 4. check that the finishing equipment and treatment solutions are set up and maintained at satisfactory operating conditions and levels 5. carry out the treatment process following operating procedures and to meet the component specification 6. ensure that the treated workpiece achieves the required characteristics and meets the finishing specification 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 basic principles of the operation chromic acid anodising equipment 6. how to prepare the process solution show to examine components for visual defects prior to anodising them 7. the pre-treatments to be carried out prior to chromic acid anodising 8. the methods used to hold/secure components during the anodising process 9. the importance of monitoring the equipment settings during the chromic acid anodising process 10. how to make additions to process solutions 11. how to dispose of spent solutionsthe methods and procedures to be observed when cleaning out tanks 12. the types of adjustment that can be made to equipment settings to maintain component quality 13. how to identify chromic acid anodising process faults (including jigging damage, gas entrapment, contact burns, pitting, low film miser, pre-treatment damage) 14. the importance of the sealing process when anodising components 15. the basic quality checks to be carried out on chromic acid anodised components 16. how to pack and store finished components to avoid damage 17. the importance of keeping the process and workholding equipment clean 18. the importance of completing the production documentation throughout the anodising process 19. the extent of your own responsibility and whom you should report to if you have problems that you cannot resolve 20. how to access, use and maintain information to comply with organisational requirements and legislation |
Scope/range
Scope Performance
| 1. Perform chromic acid anodising operations, carrying out all of the following activities: 1. use the correct issue of process documentation (specifications, job cards, quality control documentation) 2. adhere to health and safety regulations, systems and procedures to realise a safe system of work 3. confirm with the authorised person that the plant is ready for carrying out the anodising operations 4. maintain sufficient quantities of process materials and components during the production cycle 5. seek any necessary instructions/training on the operation of the anodising equipment 6. follow the defined operating procedures ensure that the equipment settings and process solutions are adjusted (either by yourself or the authorised person) to maintain the correct customer specification 7. leave the work area in a safe and clean condition 2. Carry out six of the following activities during the chromic acid anodising process: 1. segregate any defective components or batches (pre and post anodising) 2. prepare the solutions from basic constituents 3. carry out pre-treatments (cleaning, de-greasing, rinsing) 4. prepare components for anodising (jigging, wiring, clamping) 5. load components safely into plant 6. monitor the solutions and process settings (time, levels, temperature, concentrations) 7. make adjustments to solutions or process settings 8. dispose of spent solutions 9. clean the process tanks 3. Identify all of the following types of defects in chromic acid anodised components: 1. jigging damage 2. pitting 3. contact burns 4. low film misser 5. damage to substrate (caused by pre-treatment) 6. gas entrapment 4. Carry out four of the following checks on chromic acid anodised components: 1. freedom from damage 2. freedom from contamination 3. surface quality/appearance 4. completeness of the plating operations 5. thickness of deposit 6. sealing quality of anodised film 5. Carry out three of the following completion: 1. check that components are dry before packing 2. place components in the specified container/area 3. store components in the correct quantities 4. use the correct packaging so as to avoid damage 5. complete the production documentation 6. place all labels/production documentation in the specified location 7. clean the tools and equipment 6. Check finishes applied to components by chromic acid anodising, comply with one of the following quality standards: 1. military or aviation 2. current industry standards or codes of practice 3. international standards 4. customer standards and requirements 5. company standards and requirements |
Scope Knowledge
Values
Behaviours
Skills
Glossary
Links To Other NOS
External Links
Version Number
2
Indicative Review Date
2023
Validity
Current
Status
Original
Originating Organisation
Semta
Original URN
MPF2.36
Relevant Occupations
Engineering and Manufacturing Technologies, Manufacturing Technologies, Process Operatives, Process, Plant and Machine Operatives
SOC Code
8115
Keywords
Engineering; manufacturing; processing; anodising; chromic acid; aluminium; parameters; methods