Standard Svensk standard · SS-ISO 6621-5:2021

Förbränningsmotorer - Kolvringar - Del 5: Kvalitetskrav (ISO 6621-5:2020, IDT)

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Standard Svensk standard · SS-ISO 6621-5:2021

Förbränningsmotorer - Kolvringar - Del 5: Kvalitetskrav (ISO 6621-5:2020, IDT)
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Omfattning
This document specifies quality aspects that can be defined but that are not normally found on a
drawing specification.
It covers the following:
— single‑piece piston rings of grey cast iron or steel;
— multi‑piece piston rings (oil control rings) consisting of cast iron parts and spring components; and
— single‑piece and multi‑piece oil control rings of steel, i.e. oil control rings in the form of strip steel
components or steel segments (rails) with spring expander components.
In addition to specifying some of the limits of acceptance relating to inspection measuring principles
(covered by ISO 6621-2), this document also covers those features for which no recognized quantitative
measurement procedures exist and which are only checked visually with normal eyesight (glasses if
worn normally) and without magnification. Such features (superficial defects) are additional to the
standard tolerances of ring width, radial wall thickness and closed gap.
This document does not establish acceptable quality levels (AQL), it being left to manufacturer and
customer to decide the appropriate levels jointly. In this case, the recommendations of ISO 2859-1
are followed.
This document specifies the quality requirements of piston rings for reciprocating internal combustion
engines for road vehicles and other applications. It is applicable to all such rings of a nominal diameter
from 30 mm up to and including 200 mm.

Ämnesområden

Motorblock och inre delar (43.060.10)


Köp denna standard

Standard Svensk standard · SS-ISO 6621-5:2021

Förbränningsmotorer - Kolvringar - Del 5: Kvalitetskrav (ISO 6621-5:2020, IDT)
Prenumerera på standarden - Läs mer Dölj
Pris: 635 SEK
standard ikon pdf

PDF

Pris: 635 SEK
standard ikon

Papper

Pris: 1 016 SEK
standard ikon pdf + standard ikon

PDF + papper

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Produktinformation

Språk: Engelska

Framtagen av: Motorer i bilar, SIS/TK 220

Internationell titel: Internal combustion engines - Piston rings - Part 5: Quality requirements (ISO 6621-5:2020, IDT)

Artikelnummer: STD-80028065

Utgåva: 4

Fastställd: 2021-03-10

Antal sidor: 24

Ersätter: SS-ISO 6621-5:2013