Block Mould Wear Components: Liners and Replacement Planning

Block mould wear components should be reviewed as part of the complete forming system. Cavity surfaces, inserts and tamper components can have different inspection and replacement requirements. Where the approved design includes replaceable liners or inserts, identify those parts individually instead of treating the complete mould as one consumable.

Understand the wear and support conditions

SSAB's liner material guidance considers hardness and thickness, with impact toughness and adequate support also relevant to its recommendations. For a mould component, these considerations require a separate design review: a lining solution used in other equipment is not automatically a suitable mould replacement.

Record the replacement requirements

• Identify the part number, drawing revision and location of each replaceable component.
• Check thickness, profile, forming dimensions and the clearances specified by the approved assembly drawing.
• Confirm the fastening arrangement and replacement procedure for that design, including any required installation checks.
• Define inspection points and acceptance limits before choosing a replacement interval.

Use inspection evidence to plan maintenance

Compare measurements and photographs taken at the same locations over time. Record production conditions with the observations so that changes in product dimensions or surface quality can be assessed in context. Follow the equipment's approved maintenance instructions, and refer uncertain damage or fit problems for technical review.

A replacement proposal should explain the reason for the change, the affected dimensions and the checks needed before returning the assembly to production. A harder material or thicker liner should not be assumed to solve every wear problem without confirming its suitability and fit.