Elements and Performance Criteria
- Prepare to centrifugally cast polyurethane materials.
- Interpret materials specifications.
- Identify required materials, including additives and curatives.
- Identify required equipment, including handling, control and material preparation equipment.
- Identify materials and process hazards and plan for their elimination.
- Locate and make ready appropriate safety equipment.
- Plan centrifugal casting operations.
- Confirm product and process parameters.
- Ensure environmental controls are valid and in place according to operational procedures.
- Identify product to be made and calculate quantity of material required to produce product of correct shape and physical dimensions.
- Determine product colour and obtain appropriate agents.
- Plan the sequence of events from availability of the material to stripping of the final product.
- Obtain appropriate mould coating and releasing agents.
- Set up and check centrifugal casting equipment.
- Inspect and set up centrifugal casting equipment.
- Ensure that mould is secured or adequately restrained to prevent separation of mould and rotational equipment.
- Test run horizontal cylindrical moulds to ensure vibration free running.
- Ensure work area is clean and free from hazards, and check operational sequence and procedures, particularly OHS procedures, codes and practices.
- Test and confirm that equipment control settings, stop and emergency stop functions are operational.
- Test run rotational equipment to assess equipment conformance to specification.
- Centrifugally cast polyurethane products.
- Following the planned sequence, identify and operate equipment according to temperature, time, rotational speed and emergency procedures.
- Pour materials at the appropriate rate per minute, angle and quantity using necessary aids and assistance to ensure pour is completed within required times and distribution requirements and using techniques to prevent excessive aeration.
- Check product quality including thickness, weight and product integrity, against specifications.
- Deal with material waste and scrap in accordance with workplace procedures.
- Store unused materials, clean up equipment, apply lubricants, make adjustments and manage waste in accordance with workplace procedures.
- Anticipate and solve problems
- Recognise a problem or a potential problem.
- Determine problems needing priority action.
- Refer problems outside area of responsibility to appropriate person, with possible causes.
- Seek information and assistance as required to solve problems.
- Solve problems within area of responsibility.
- Follow through items initiated until final resolution has occurred.