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NEWS

Quality

TECHNICAL INSPECTION DEPARTMENT

Designed as an entity that is independent from the production units and whose task is to perform inspection activities and to ensure compliance with the guidelines for foundry, technological and metallurgical processes. This includes continuous partial and intermediate inspections at various stages of the production of castings and performing final inspection of manufactured parts, including the management of internal and external complaints and non-conformities. It also documents, processes, highlights and evaluates partial and general quality issues in the production process. An integral part of the scope of activities of the Technical Inspection Department is ongoing communication with customers.

EXTERNAL COMPLAINTS (NON-CONFORMITIES)

Products for which unsatisfactory properties or finish have been found by the customer at various stages of processing and which thus do not meet the predefined quality criteria. These are mainly hidden internal defects that become apparent at various stages of the sequential machining of the parts (shrinkage porosities, shrink holes, blowholes, non-metallic inclusions etc.).

INTERNAL COMPLAINTS (NON-CONFORMITIES)

Products of which the non-conforming properties or finish have been found by our final inspection. These are mainly defects identified by visual checks (shape deviations, inaccurate dimensions, surface defects, etc.) or unsatisfactory mechanical and other properties (strength, hardness, chemical composition, etc.).

TEST METHODS

Sand laboratory

 

Tests performed:

 

  • Technical testing
  • Granulometric analysis – including flue content and pH
  • Measurement of bending strength
  • Determination of service life of moulding mixtures
  • Determination of leachables (externally)
  • Determination of humidity (externally)
  • Determination of permeability (externally)
  • Determination of deposition rate (externally)
  • Determination of density (externally)
  • Determination of viscosity (externally)
Síťový rozbor ostřiva

Chemical analysis by means of a Tasman Q4 spark spectrometer

Assessment of quality of liquid metal by thermal analysis (externally)

 

 
Assessment of quality of liquid metal by AccuVo and Open Cup thermal analysis with subsequent evaluation in the Apromace software.

Numerical simulation with ProCAST/QuikCAST


Numerical simulation software for metal filling and solidification in foundry mould (for defect predictions).

Metallography (externally)


Evaluation of metallographic structure of cast irons.

Inspection documents according to EN 102204 (certificates)


Inspection certificate (material certificate) according to ČSN EN 10 204 3.1 – declaration of conformity with the order and including the results of tests carried out under the specified inspection.

Non-destructive testing


Ultrasonic test for detection of internal defects (externally)

Destructive testing (externally)


Yield strength
Ductility
Tensile strength – a static tensile test is carried out on a TIRA test 2300 tensile testing machine in accordance with ČSN EN ISO 6892-1.

Hardness measurement

 

Hardness measurement – hardness scale: HLD – HB – HRC – HRA – HRB – HV – HS

Universal portable hardness tester – TH-1100 series

PARTNERS FOR EXTERNAL MEASUREMENT ​

Inquire about production

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