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JB/T 12780-2016Screw feed extruders - Screws (English PDF)

螺杆挤压式饲料膨化机螺杆

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Issued by

MIIT

Level / Type

Industry · Recommended

Issue date

April 5, 2016

Implementation date

September 1, 2016

Scope

JB/T 12780-2016 is the English-translated version of 螺杆挤压式饲料膨化机螺杆.

JB/T 12780-2016 is a recommended Chinese machinery industry standard for the screw of a screw-type feed extruder. It fixes the technical requirements for the screw and the test methods and inspection rules that go with them, and it covers marking, packaging, transport and storage.

The screws it addresses are those fitted to the screw extruders used to expand feed, called the screw throughout. Among the standards it quotes are GB/T 230.1, GB/T 1184-1996, GB/T 3077, GB/T 9943 and JB/T 5000.15-2007.

It is classified B93 in the Chinese system and 65.060 in the ICS, and was issued by the Ministry of Industry and Information Technology.

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Document preview — JB/T 12780-2016

National Standard of the People's Republic of China

ICS: 65.060

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

1 Scope
2 Normative references

1 Foreword

JB/T 12780-2016 was issued by MIIT on 5 April 2016 and has been in force since 1 September 2016.

2 Scope

This standard is a recommended Chinese machinery industry standard for the screw of a screw-type feed extruder. It fixes the technical requirements for the screw and the test methods and inspection rules that go with them, and it covers marking, packaging, transport and storage. The screws it addresses are those fitted to the screw extruders used to expand feed, called the screw throughout. Among the standards it quotes are GB/T 230.1, GB/T 1184-1996, GB/T 3077, GB/T 9943 and JB/T 5000.15-2007. It is classified B93 in the Chinese system and 65.060 in the ICS, and was issued by the Ministry of Industry and Information Technology.

3 Normative references

JB/T 12780-2016 cites the following standards, which apply in full or in part through the references made to them in its clauses.

GB/T 230.1

GB/T 1184-1996 — Geometrical tolerancing. Geometrical tolerance for features without individual tolerance indications

GB/T 1299

GB/T 1800.1-2009

GB/T 3077

GB/T 3478.1-2008 — Straight cylindrical involute splines -- Metric module, side fit -- Part 1: Generalities

GB/T 3478.5-2008 — Straight cylindrical involute splines -- Metric module, side fit -- Part 5: Inspection

GB/T 9943

JB/T 5000.15-2007 — General technical requirements for heavy machinery - Part 15: Non-destructive testing of steel forgings

4 About this standard

Issued by: MIIT

English translation: about 15 pages

5 Classification and status

International classification (ICS): 65.060

Prefix JB/T: recommended standard.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

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