Applying hot dip treatments
URN: SEMMPF231
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 coating operations by applying hot dip treatments, 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 hot dip coating operations to be performed and that all the required components/materials and consumables are available. You will be required to operate the hot dip coating equipment, in line with safe working practices and approved procedures, continuously monitoring the hot dip coating 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 hot dip coating 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 hot dip coating procedures. You will have an understanding of the hot dip coating 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 coating defects and ensuring that completed components are to the required specification. You will understand the safety precautions required when working with hot dip coating 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 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. how to obtain and interpret the production documentation required during the hot dip coating activity 6. the basic principles of the operation of hot dip coating equipment 7. the visual checks to be made on components prior to dip coating 8. the pre-treatments to be carried out on components prior to dip coating 9. the methods used to hold/secure components during the dip coating process 10. the importance of monitoring the equipment settings and process solutions during the hot dip coating process 11. how to make additions to process solutions 12. the types of adjustment that can be made to equipment settings to maintain component quality 13. how to identify hot dip coating processing faults (including missed coating, bridging, excessive and low coating, rippling, poor adhesion and contamination) 14. the basic quality checks to be carried out on hot dip coated components 15. how to verify that drying/curing ovens are working correctly 16. how to pack and store finished components to avoid damage 17. the importance of keeping the plant and equipment clean 18. the procedure for the safe disposal of waste materials 19. the importance of completing the production documentation throughout the hot dip coating process 20. the extent of your own responsibility and whom you should report to if you have problems that you cannot resolve 21. how to access, use and maintain information to comply with organisational requirements and legislation |
Scope/range
Scope Performance
1. Apply hot dip treatments, 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 equipment is ready for carrying out the coating 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 coating equipment 6. follow the defined operating procedures 7. ensure that the equipment settings and process solutions are adjusted (either by yourself or the authorised person) to maintain the correct customer specification 8. leave the work area in a safe and clean condition 2. Apply a hot dip coating to one of the following types of substrate: 1. ferrous 2. non-ferrous 3. non metallic 3. Apply a hot dip coating using one of the following processes: 1. immersion 2. rolling 3. dip spin 4. Apply one of the following types of hot dip coatings: 1. molten wax (such as coating of steel as a masking material prior to electroplating) 2. molten tin to steel (tinning) 3. molten zinc to steel (galvanising) 4. organic coatings (such as insulation) 5. other specific process 5. Carry out four of the following activities during the hot dip coating process: 1. segregate any defective components or batches (pre and post coating) 2. carry out pre-treatments (such as cleaning, pickling, rinsing, degreasing) 3. load components safely into plant 4. monitor process settings (such as time, speed temperature, agitation) 5. monitor process solutions (such as contamination, viscosity, evaporation, agitation) 6. make adjustments to solutions or process settings 7. jigging 8. change and maintain filters 6. Identify five of the following types of defect in hot dip coated components: 1. missed coating 2. rippling (orange peel) 3. excessive coating 4. contamination 5. low coating 6. bridging 7. poor coating adhesion 7. Carry four of the following checks on hot dip coated products: 1. free from damage 2. free from contamination 3. surface quality/appearance 4. completeness of coating operations 5. thickness of coating 6. gloss level 7. abrasion resistance 8. porosity of coating 9. colour uniformity 8. Carry out three of the following activities on completion of the hot dip coating process: 1. check that the curing process has been completed 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 9. Check hot dip coatings applied to components comply with one of the following quality and accuracy standards: 1. military or aviation 2. current industry standards or 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
2023
Validity
Current
Status
Original
Originating Organisation
Semta
Original URN
MPF2.31
Relevant Occupations
Engineering and Manufacturing Technologies, Manufacturing Technologies, Process Operatives, Process, Plant and Machine Operatives
SOC Code
8115
Keywords
Engineering; manufacturing; processing; applying; treatments; hot dip; wax; tin; zinc