ISO 22462:2020 金属およびその他の無機コーティング—化成処理コーティングの摩擦係数測定の試験方法 | ページ 2

Foreword

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Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents ).

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This document was prepared by Technical Committee ISO/TC 107, Metallic and other inorganic coatings, Subcommittee SC 8, Chemical conversion coatings.

Introduction

The forming properties of sheet metals are highly dependent on the friction that is generated with the dies during the forming process.

Therefore, there is a need to measure the frictional characteristics of the surface of sheet metals.

The measured friction coefficient can change depending on the test conditions and the apparatus status. Moreover, if the apparatus has not been configured properly, it is difficult to ensure reliability and reproducibility. Many traditional methods cause deformation or breakage of the test pieces because of the pressure of the friction block (and its perpendicular pressure to the specimens). In addition, there is no International Standard for metallic coatings, other inorganic coatings and chemical conversion coatings.

This document gives an advanced method that can accurately measure the friction coefficient without deformation of the test pieces during the test.

The test results can vary depending on the test conditions, e.g. surface state, normal force, sliding velocity, temperature. Therefore, it is important that the test conditions are specified.

The International Organization for Standardization (ISO) draws attention to the fact that it is claimed that compliance with this document may involve the use of a patent related to the composition of apparatus given in Clause 4.

ISO takes no position concerning the evidence, validity and scope of this patent right.

The holder of this patent right has assured ISO that he/she is willing to negotiate licences under reasonable and non-discriminatory terms and conditions with applicants throughout the world. In this respect, the statement of the holder of this patent right is registered with ISO. Information may be obtained from the patent database available at www.iso.org/patents .

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights other than those in the patent database. ISO shall not be held responsible for identifying any or all such patent rights.

1 Scope

This document specifies a test method to measure the friction coefficient of chemical conversion coating sheet products and coiled products.

This document is applicable to measure or compare the friction properties of hot-dip galvanized, lubricated and resin coated steel sheet, when tested under the same conditions.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 377, IEC 60648 and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

Bibliography