ISO-6805-1994.pdf
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1、INTERNATIONAL STANDARD IS0 6805 Second edition 1994-l o-01 Rubber hoses and hose assemblies for underground mining - Wire-reinforced hydraulic types for coal mining - Specification Tuyaux et flexibles en caoutchouc pour /es mines souterraines - Types hydrauliques avec armure de fils m6talliques pour
2、 mines de charbon - Spkifications Reference number IS0 6805:1994(E) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 23:27:33 MDTNo reproduction or networking permitted without li
3、cense from IHS -,-,- IS0 6805:1994(E) Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body
4、 interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotec
5、hnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vot
6、e. International Standard IS0 6805 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee SC 1, Hoses (rubber and plastics). This second edition cancels and replaces the first edition (IS0 6805:1984), which has been technically revised. cl IS0 1994 All rights reserve
7、d. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanrcal, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case Postale 56 ? CH-
8、1211 Geneve 20 . Switzerland Printed in Switzerland ii Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 23:27:33 MDTNo reproduction or networking permitted without license from IH
9、S -,-,- INTERNATIONAL STANDARD 0 IS0 IS0 6805:1994( E) Rubber hoses and hose assemblies for underground mining - Wire-reinforced hydraulic types for coal mining - Specification 1 Scope This International Standard specifies requirements for six types of embedded-wire hose and hose assembly of bore di
10、ameter from 5 mm to 51 mm for use with common hydraulic fluids such as mineral oils, soluble oils, oil and water emulsions, aqueous glycol solution and water at temperatures ranging from - 40 “C to + 100 “C for types 1 to 5 and from - 40 “C to + 121 “C for type 6. Operation at the extremes of or out
11、side this temperature range may materially reduce the life of the hose. The hose is not suitable for use with fluids having a castor oil or ester base. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International
12、 Standard. At the time of publi- cation, the editions ,indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most re- cent editions of the standards indicated below. Me
13、mbers of IEC and IS0 maintain registers of cur- rently valid International Standards. IS0 1402:-I, Rubber and plastics hoses and hose assemblies - Hydrostatic testing. IS0 1436: 1991, Rubber hoses and hose assemblies - Wire-reinforced hydraulic type - Specification. IS0 1817: 1985, Rubber, vulcanize
14、d - Determination of the effect of liquids. IS0 3862: 1991, Rubber hoses and hose assemblies - Rubber-covered, spiral wire reinforced, hydraulic type - Specification. IS0 4671 :I 984, Rubber and plastics hose assemblies - Methods of measurement sions. and hose of dimen- IS0 4672:1988, Rubber and pla
15、stics hoses - Sub- ambient temperature flexibility tests. IS0 6803:1994, Rubber or plastics hoses and hose assemblies - Hydraulic-pressure impulse test with- out flexing. IS0 6945:1991, Rubber hoses - Determination of abrasion resistance of the outer cover. IS0 7326:1991, Rubber and plastics hoses -
16、 As- sessment of ozone resistance under static conditions. IS0 8030: 1987, Rubber and plastics hoses for under- ground mining - Method of test for flammability. IS0 8031 :I 993, Rubber and plastics hoses and hose assemblies - Determination of electrical resistance. IS0 8033: 1991, Rubber and plastic
17、s hose - Deter- mination of adhesion between components. 1) To be published. (Revision of IS0 1402:1984) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 23:27:33 MDTNo reproducti
18、on or networking permitted without license from IHS -,-,- IS0 6805:1994(E) fJ IS0 3 Types of hose 4 Materials and construction Six types of hose are specified: Type 1: a hose with two steel-wire braids, dimen- sionally and constructionally in line with IS0 1436:1991, type 2A. Type 2: a hose with two
19、 steel-wire braids, which is typical of that at present in use in many deep coal- mining installations. The dimensional parameters have been selected to provide increased reliability. Type 3: a hose with four steel-wire spiral plies, di- mensionally and constructionally in line with IS0 3862:1991, t
20、ype 2. Type 4: a hose with two steel-wire braids, dimen- sionally in line with type 2 but constructed to give higher maximum working pressure ratings. Type 5: a hose with four steel-wire spiral plies, di- mensionally and constructionally in line with IS0 3862:1991, type 5. Type 6: a hose with four o
21、r six steel-wire spiral plies, designed for higher working pressures and temper- atures than type 5. NOTE 1 This International Standard does not include re- quirements for end fittings. It is limited to the performance of hoses and hose assemblies. 4.1 The hose shall be anti-static and fire-resistan
22、t. The hose shall consist of an oil- and water-resistant synthetic-rubber lining, a steel-wire reinforcement and an oil-, water-, weather- and abrasion-resistant synthetic-rubber cover. A ply or braid of suitable tex- tile material may be used over the lining and/or the wire reinforcement to anchor
23、the synthetic rubber to the wire. Each braid or spiral wire layer shall be sep- arated by an insulating layer of rubber. 4.2 The hose shall be concentric in accordance with the requirements of table 1, when measured in ac- cordance with IS0 4671. 5 Dimensions The bore diameter, diameter over reinfor
24、cement and outside diameter of finished hose shall meet the re- quirements of tables 2 to 7 when measured in ac- cordance with IS0 4671. Table 1 - Hose concentricity Values in mdlimetre Nominal bore Up to and including 6,3 Maximum variation from concentricity Bore diameter to overall Bore diameter t
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