ISO 6313:1980 PDF

Name: ISO 6313:1980 — Road vehicles — Brake linings — Effects of heat on dimensions and form of disc brake pads — Test procedure
SKU: ISO 6313:1980
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Road vehicles — Brake linings — Effects of heat on dimensions and form of disc brake pads — Test procedure

Название (английский):

ISO 6313:1980

Road vehicles — Brake linings — Effects of heat on dimensions and form of disc brake pads — Test procedure

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 4
Дата публикации:: 1 июня 1980 г.
Издание:: ISO IS 6313 edition 1 version 1
ICS:: 43.040.40

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Цена:60 €

Описание (английский):

Specifies a combined method of measuring disc brake pads to determine their dimensional changes in relation to temperature and their resistance to heat transfer. Applies to disc brake pads which dimensions should not exceed 80 mm in depth, 120 mm in width and 20 mm in thickness, being of integral moulded or bonded type, and the backing plate of solid type.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO 6313:1980 - "Road vehicles - Brake linings - Effects of heat on dimensions and form of disc brake pads - Test procedure" specifies a combined laboratory method to measure dimensional changes of disc brake pads with temperature and their resistance to heat transfer. Intended for road-vehicle disc brake pads (integral moulded or bonded type, solid backing plate) whose finished dimensions do not exceed 80 mm depth × 120 mm width × 20 mm thickness, the standard defines sample preparation, test rig requirements, heating cycles, measurement points and reporting requirements.

Key topics and requirements

Scope and applicability

Applies to disc brake pads for road vehicles with the dimensional limits above.
Terminology references ISO 611.

Sample preparation

Samples taken from stock; rubbing with emery paper (grain No. 120) to remove paint and smooth surfaces.
Remove friction material from spigot holes to avoid affecting results.

Test rig and heating

Rigid electrically heated steel plate (example size 80 × 170 × 40 mm).
Heating source capable of raising plate to 400 °C in 10 ± 0.5 minutes (higher final temp allowed if required for a vehicle type).
Clamping block with a 48 mm diameter piston, coil springs and screw adjuster to apply a compressive force range 20–200 N; typical pad surface pressure ≈ 20 kPa (0.02 N/mm²).
For pads with anti-noise strips, a 4 mm thick, 80 × 100 mm thermal-conductive intermediate plate is used.

Instrumentation and measurements

Drill two 2 mm holes (lining and backing plate) parallel to rubbing surface, 5 mm from contact surface, to house sheathed thermocouples (omitted where thin anti-noise strips prevent drilling).
Measure pad thickness at two reference points (mean value d̄) to 0.01 mm accuracy.
Record heater plate temperature, pad temperature and backing/intermediate plate temperature during heating and cooling.
Readings recorded continuously (recorder) or at 25 °C intervals between 50 °C and final temperature if manual.

Test cycles and reporting

Two heating periods (heat to final temp, cool naturally, repeat without readjustment).
Report shall include product ID, mean thickness before test, maximum relative thickness changes with temperatures, residual changes at room temperature, backing/intermediate plate temps, and appearance (cracks, bubbling, delamination).

Applications and users

Who uses it: brake manufacturers, OEM qualification engineers, materials and reliability labs, quality control and certification bodies.

Practical value:

Validate dimensional stability of friction linings under thermal load.
Assess heat transfer through pad assembly and backing plate.
Prevent brake malfunction from thermal deformation (outline changes, delamination).
Support material selection, design verification and quality acceptance testing.

ISO 6313:1980 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications and users

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