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Elements and Performance Criteria
Required Skills
Evidence Required
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. Add any 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.Where reference is made to industry codes of practice, and/or Australian/international standards, the latest version must be used.ContextThis competency applies to all blow moulding operations within the plastics and rubber sectors. It includes the operation of all relevant additional equipment where that equipment is integral to the blow moulding process.ProceduresAll operations are performed in accordance with procedures.Procedures include all relevant workplace procedures, work instructions, temporary instructions and relevant industry and government codes and standards.Tools and equipmentThis competency includes use of equipment and tools such as:bottom blow, top blow, needle blow, tail to tail blow, parisonpre-blow and pre-squeeze, parison stretching and parison orientation type machinesancillary equipment (such as chillers/cooling towers, die heating equipment, hopper driers, mixing hoppers, dehumidifying driers, air compressors, dosing machines, colour blending equipment and conveyors)hand tools used in the blow moulding processmaterial loading equipment used for loading of raw materials relevant personal protective equipment.HazardsTypical hazards include:spills dusts/vapoursslip and fall (such as due to spilt granules)temperature (such as due to heated moulds)hazardous substances (including decomposing polymer during start up and shut down)moving equipment (such as moving moulds, robots and ancillary equipment)manual handling hazards.Problems'Respond to routine problems' means 'apply known solutions to a limited range of predictable problems'. Typical process and product problems may include:equipment malfunctionvariations in temperature, pressure, speed, inflation variations in materials or contamination of materialsincorrect quantity of materials/additivesdie damage routine blow moulding faults (eg wall thinning, holes, poor surface finish, warping, poor colour dispersion, ejection damage, colour contamination, black spots and other defects)machine malfunctiondie/tooling problems.