Product Details
This document is available in the following versions: Deutsch, Englisch and France.
Edition 4: English: Specification for Inspection of Steel Castings for Hydraulic Machines.
Edition 4: France: Cahier des Charges Hydrauliques.
Edition 4: Deutsch: Pflichtenheft für die Abnahme von Stahlgußstücken für hydraulische Maschinen.
History
- CCH 70-1 Nov 1971 The first edition was prepared on the initiative of a Study Group (Group d' Etude) formed by several European Designers and Founders.
- CCH 70-2 June 1979 The second edition took into account the accumulated experiences during the first years of use.
- CCH 70-3 The third edition is adapted:- to the actual principles of the Quality organization,- to the frequent practice of finishing the parts in the shops of a firm other than the Designer,- to the latest developments of non destructive inspections.
- CCH 70-4 Nov 2014 Fourth version, prepared by a study group comprising personnel of three
foundries, four design engineers and one accredited testing and inspection body. The revised version includes:
- Changes and updates in all chapters.
- New chapter “VT 70-4” on visual testing.
- Significant changes in chapter “UT 70-4“ in particular with regard to the evaluation of indications dependent on the depth of discontinuities.
A CCH 70 é uma especificação que define as condições gerais e técnicas de compra para todos os fundidos de aço para máquinas hidrelétricas. Os métodos de teste, sua aplicação e critérios de aceitação, bem como as aprovações na fundição e no fabricante são especificados. O principal documento é a Folha de Regras de Qualidade, que contém todas as regras relacionadas à tecnologia e controles
Nenhum comentário:
Postar um comentário