1、 SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising there
2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2014 SAE International All rights reserved. No part of this p
3、ublication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-497
4、0 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/J2140_201406 SURFACE VEHICLE STANDARD J2140 JUN2014 Issued 2000-07Reaffirmed 2014
5、06 Superseding J2140 SEP2005 General Requirement for Preformed Hoses for Air Induction on Heavy-Duty Engines RATIONALE J2140 has been reaffirmed to comply with the SAE five-year review policy. 1. ScopeThis SAE Standard outlines the requirements for a preformed thermosetting hose intended for use in
6、heavy-duty vehicle engines, such as air cleaner to carburetor hose, where it is exposed to normal heat andsplash of motor oil.2. References2.1 Applicable PublicationsThe following publications form a part of this specification to the extent specifiedherein. Unless otherwise indicated, the latest iss
7、ue of SAE publications shall apply.2.1.1 SAE PUBLICATIONAvailable from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.SAE J200Classification System for Rubber Materials2.1.2 ASTM PUBLICATIONSAvailable from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.ASTM D 395Test Methods f
8、or Rubber PropertyCompression SetASTM D 412Test Methods for Rubber Properties in TensionASTM D 471Test Method for Rubber PropertyEffect of LiquidsASTM D 573Test Methods for Rubber-Deterioration in an Air OvenASTM D 1149Test Method for Rubber DeteriorationSurface Ozone Cracking in a Chamber (FlatSpec
9、imens)ASTM D 2137Test Methods for Rubber PropertyBrittleness Point of Flexible Polymers and CoatedFabricsASTM D 2240Test Method for Rubber PropertyDurometer Hardness3. Physical Tests and SpecificationsPhysical tests and specifications shall be obtained from finished hoseswhere possible, or as agreed
10、 between manufacturer and user.3.1 HardnessHardness, determined in accordance with the procedure in ASTM D 2240 Test Method. Standarddurometer hardness for each polymer type shown in Section 5. If another hardness is needed, it should bespecified by user.3.2 Tensile Strength and Elongation at BreakT
11、ensile strength and elongation at break, determined in accor-dance with the procedure in ASTM D 412 Test Method. Standard tensile and elongation specifications areshown in Section 5. If other tensile and elongation requirements are needed, they should be specified by user.3.3 Change in Properties Af
12、ter Heat AgingHeat aging shall be carried out in accordance with ASTM D 573Test Method for 168 h at temperatures of 100 C, 121 C, 125 C, 135 C, 150 C, or 200 C. Test temperatureshould be specified by purchaser based on the application requirements. The change in hardness, tensilestrength retention,
13、and absolute elongation at break shall fall within the values shown in Table 1.3.4 Low Temperature FlexibilityThe test shall be carried out in accordance with ASTM D 2137 Method A TestMethod. Immerse the specimens for 3.0 min 0.5 min at the test temperatures, 40 C or 54 C. Testtemperature should be
14、specified by purchaser based on the application requirements. After the test period, thespecimen shall show no signs of cracks.3.5 Resistance to Oil IRM903 (Replaces ASTM #3 oil)Volumetric changes, when tested in accordance withASTM D 471 Test Method, for 70 h at 100 C shall not exceed the values sh
15、own in the Table 1.Three grades are available; Grade A, B, and C, depending on the resistance to oil required. Grade should bespecified by purchaser based on the application requirements.3.6 Vacuum ResistanceThe test shall be carried out at 8.4, 16.7, 33.3, or 66.7 kPa of negative pressure 2%.The te
16、st temperature shall be selected from 3.3. The entire hose shall be kept in an air circulating oven at thespecified temperature for 2 h 0.25 h. Vacuum shall be applied for a minimum of 15 s and a maximum of 30 s.The minimum outside diameter shall decrease by no more than 20%. The vacuum requirement
17、should bespecified by purchaser based on application requirements. Other vacuum requirements and temperatures maybe decided between manufacturer and user.TABLE 1MATERIAL REQUIREMENTSParagraph Characteristic Unit Requirement3.3 Accelerated AgingChange in Hardness, max. Points 15Tensile Retained, min
18、 70Absolute Elongation at Break, min % 1003.4 Low Temperature Flexibility No cracks3.5 Resistance to Oil IRM903Volumetric Change, maxGrade A Not requiredGrade B % 80Grade C % 203.6 Vacuum Resistance PassNOTENot all combinations of the previous properties, 3.3 to 3.6, are available._ SAE INTERNATION
19、AL J2140 Reaffirmed JUN2014 Page 2 of 34. Additional Requirements (optional)See Table 2.If required, other physical tests and specifications can be specified as agreed between manufacturer and user.SAE J200 call-outs may also be specified for specific properties not covered in 3.1 to Section 4.5. Po
20、lymer Types and Properties AvailableSee Tables 3 and 4.PREPARED BY THE SAE NON-HYDRAULIC HOSE COMMITTEETABLE 2ADDITIONAL REQUIREMENTS (OPTIONAL)Property Test MethodCompression Set ASTM D 395Ozone Resistance ASTM D 1149, Method AAdhesion (if multi-layered) Test specified by procurerCrush Resistance T
21、est specified by procurerFungus Resistance Test specified by procurerPressure (burst) Resistance Test specified by procurerBloom Resistance No objectionable bloomTABLE 3POLYMER TYPES AND PROPERTIES AVAILABLEEPMEPDM CM NBR ECOMQVMQ CR CSMBIIRCIIRNBR-PVCHighTempTo150 CTo135 CTo100 CTo135 CTo200 CTo100
22、 CTo135 CTo135 CTo100 CLowTemp40 C54 C40 C 40 C 40 C54 C40 C54 C40 C 40 C 40 COil SwellIRM903NotRecommended80%20% 20%80% 80% 80% NotRecommended80%20%MinimumTensile 6.9 MPa 6.9 MPa 6.9 MPa 6.9 MPa 5.5 MPa 6.9 MPa 6.9 MPa 6.9 MPa 6.9 MPaMinimumElongation 200% 200% 200% 200% 200% 200% 200% 200% 200%Har
23、dnessDuro 5 70 70 70 70 60 70 70 70 70TABLE 4ASTM CODES, POLYMER TYPES AND TRADE NAMESASTMCode Polymer and (Trade Names)EPM Ethylene Propylene CopolymerEPDM Ethylene Propylene Diene TerpolymerCM Chloro-polyethyleneNBR Acrylonitrile-ButadieneECO Epichlorohydrin CopolymerMQ SiliconeVMQ Silicone (Methyl, Vinyl)CR Chloroprene (Neoprene)CSM Chloro-sulfonyl-polyethyleneBIIR Bromo-isobutene-isoprene (Bromobutyl)CIIR Chloro-isobutene-isoprene (Chlorobutyl)NBR-PVC Acrylonitrile-butadiene Polyvinyl Chloride blend _ SAE INTERNATIONAL J2140 Reaffirmed JUN2014 Page 3 of 3
