
Prototype Injection Molding with Our P3 Process - prototype plastic injection mo
Author:gly Date: 2024-10-15
In all cases it is expected that practical assessment will be combined with targeted questioning to assess the underpinning knowledge and theoretical assessment will be combined with appropriate practical/simulation or similar assessment. Assessors need to be aware of any cultural issues that may affect responses to questions.
People being trained in this unit who do not have an appropriate production or trade background may require extra time allowance.
A two or three plate die with one or more product forming components which move in a direction other than the mould open axis, and which are driven by the mould rather than external actuation. Excludes moulds which retain molten material within the mould between cycles. Typical features may include: sliding blocks or cores actuated by skew pins or cams; baffled, spiral, tube, and heat pipe cooling systems; rising cores; and internally actuated unscrewing systems.
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It is essential that competence is demonstrated in the ability to change and set a die in a manner which will put the moulding machine back into full production of in specification product in standard time. In particular it is essential that the operator can:
Where reference is made to industry codes of practice, and/or Australian/international standards, the latest version must be used.
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Procedures include all relevant workplace procedures, work instructions, temporary instructions and relevant industry and government codes and standards.
Assessors must be satisfied that the person can consistently perform the unit as a whole, as defined by the Elements, Performance Criteria and skills and knowledge.
Assessment processes and techniques must be culturally appropriate and appropriate to the oracy, language and literacy capacity of the assessee and the work being performed.
Dies which use at least one external power and control source to actuate product forming components, which move in a direction other than the mould open axis, and require sequencing with the mould operation. Includes moulds which retain molten material within the mould between cycles. Typical features may include: hot runners; insulated runners; externally actuated sliding blocks, cores, and unscrewing systems; safety interlocks.
Requirements for the die change may include checking the die dimensions such as mould height and required ejector stroke to ensure it is compatible with the selected machine
A former used to give the required shape to the product and used under pressure. Dies are typically used in the extrusion, injection, blow moulding and general rubber sectors. Dies used which are not subject to pressure are referred to as 'moulds' in this Training Package.
Access must be provided to appropriate learning and/or assessment support when required. Where applicable, physical resources should include equipment modified for people with disabilities.
Anticipate problems includes taking a proactive approach to a wide range of routine and non-routine problems, using product and process knowledge to develop solutions to problems which do not have a known solution/a solution recorded in the procedures, and endeavouring to learn from the problem so that it does not recur.
The Evidence Guide provides advice on assessment and must be read in conjunction with the Performance Criteria, required skills and knowledge, the Range Statement and the Assessment Guidelines for this Training Package.
This competency covers the removal, refitting and setting of dies in preparation for production. It applies typically to the moulding areas of the industry such as injection moulding, and blow moulding.
Performance Criteria describe the required performance needed to demonstrate achievement of the Element. Assessment of performance is to be consistent with the Evidence Guide.
This competency applies to advanced operators or operators who set dies in preparation for the production process. The job involves the die change and the setting of moulding conditions or program for the new die, and can include nozzle change, die tooling changing, screw cleaning and connection of ancillary equipment. The key factors are the safe, precise and efficient removal of dies and the correct installation and setting ready for production. It includes:
This competency applies to all work environments and sectors within the plastics, rubber and cablemaking industry which use moulding dies. It includes the operation of all relevant ancillary equipment.
These settings may be performed automatically, using an electronic storage device to load settings from a previous run of this product, or may be performed by manually setting controls individually.
A two plate die including any ejection system operating in the mould open axis, but excluding moulds with molten material retained within the mould between cycles. Products are simple, straight drawn items. Typical features may include: force, cavity, back plates, support plates, cold runner, sprue, nozzle seat, locating ring-tab, sub, fan, diaphragm and direct gating, ejector pins and sleeves, ejector plate and stripper plate, simple drilling for mould cooling.
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.
Basic numeracy is required, eg to monitor and set displays, gauges and dials to correct values according to set-up sheet.
2.3 Attach replacement die ensuring that locating devices and marks are matched and securing devices are installed and tightened to specification.
This competency is typically performed by advanced operators or operators demonstrating some relevant theoretical knowledge and using a range of well-developed skills requiring some discretion and judgement.
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Setting of the machine conditions may include setting the mould height on the machine, the clamp force, the mould safety system, the ejector system, the mould opening and closing distances, speeds and forces and the injection unit.
For setting dies for extrusion, cablemaking and blown film, use PMBPREP305B Change extrusion die and calibration set -up . For changing moulds for rotational moulding or thermoforming, use PMBPROD282B Assemble mould . For quick change of dies, use MCMT220A Apply quick changeover procedures .
It also requires skills in the safe, precise and efficient removal of simple dies and their correct installation and the ability to plan their own work, including predicting consequences and identifying improvements.
SPB208 is a low density polyethylene, developed for injection molding. This grade has excellent processability and is suitable for applications in which low viscosity during processing is required. Injection molded parts have good flexibility. Free from additives.
This section should be read in conjunction with the Range Statement for this unit of competency. Resources required include suitable access to an operating plant or equipment that allows for appropriate and realistic simulation. A bank of case studies/scenarios and questions will also be required to the extent that they form part of the assessment method. Questioning may take place either in the workplace, or in an adjacent, quiet facility such as an office or lunchroom. No other special resources are required.
Performance Criteria describe the required performance needed to demonstrate achievement of the Element. Assessment of performance is to be consistent with the Evidence Guide.
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