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 theref
2、rom, 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 2016 SAE InternationalAll rights reserved. No part of this publi
3、cation 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: +1 724-776-4970 (out
4、side USA)Fax: 724-776-0790Email: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visithttp:/www.sae.org/technical/standards/J2682_201608SURFACE VEHICLESTANDARDJ2682 AUG2016Issued 2016-08Connections for General Use and
5、 Fluid Power -Test Methods-Threadless ConnectionsRATIONALEThis SAE Standard Project No. C1-J2682-13-01 was initiated to develop a USA national standard to establish test methods for threadless connections.FOREWORDIn fluid power systems, power is transmitted and controlled through a fluid (liquid or
6、gas) under pressure within an enclosed circuit. Threadless connections must be designed to meet these requirements under varying conditions. Testing of threadless connections to meet performance requirements provides users a basis of assurance for determining design application and for checking comp
7、liance with their stated requirements. This standard also provides a means to evaluate functional requirements of new threadless connector configurations not yet in the market place. WARNING: Some of the tests described in this document are considered hazardous; it is therefore essential that, in co
8、nducting these tests, all appropriate safety precautions are strictly adhered to. Attention is drawn to the danger of burst, fine jets (which can penetrate the skin), and energy release of expanding gases. To reduce the hazard to energy release, bleed air out of test specimens prior to pressure test
9、ing. Tests shall be set-up and performed by properly trained personnel. These connectors shall not be disconnected under pressure.1. SCOPEThis SAE standard specifies uniform methods for the testing of threadless connections for hydraulic fluid power applications.These connections are intended for ge
10、neral application and hydraulic systems on industrial equipment and commercial products. These connections shall be capable of providing leak proof connections in hydraulic systems operating from 95 kPa vacuum to working pressures specified by the manufacturer.Since many factors influence the pressu
11、re at which a hydraulic system will or will not perform satisfactorily, it is recommended that sufficient testing be conducted and reviewed by both the user and manufacturer to ensure that required performance levels are met.SAE INTERNATIONAL J2682 AUG2016 Page 2 of 52. REFERENCES2.1 Applicable Publ
12、icationsThe following publications form a part of this specification to the extent specified herein. Unless otherwise specified, the latest issue of SAE publications shall apply.2.1.1 SAE PublicationsAvailable from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-73
13、23 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org.SAE J1176 External Leakage Classifications for Hydraulic Systems2.1.2 ISO PublicationsCopies of these documents are available online at http:/webstore.ansi.org/ISO 5598 Fluid Power Systems and Components VocabularyISO 18869 Hyd
14、raulic fluid power Quick-action couplings Hydraulic fluid power Test methods for couplings actuated with or without toolsISO 19879 Test Methods for Hydraulic Fluid Power Connections2.1.3 Military PublicationsCopies of these documents are available online at http:/webstore.ansi.org/MIL-STD-810G Envir
15、onmental Engineering Considerations and Laboratory Tests, Method 510.6 Sand and Dust2.2 Related PublicationsThe following publications are for information purposes only and are not a required part of this document.2.2.1 SAE PublicationsAvailable from SAE International, 400 Commonwealth Drive, Warren
16、dale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org.SAE J2551-2 Recommended Practices for Fluid Conductor Carbon, Alloy and High Strength Low Alloy Steel Tubing Applications-Part 2: General Specifications and Performance Requirements2.2.2 ISO
17、PublicationsCopies of these documents are available online at http:/webstore.ansi.org/ISO 3448 Industrial Liquid Lubricants - ISO Viscosity ClassificationNote Currently there is no equivalent ISO standard to SAE J2862 however, ISO 19879 and ISO 18869 are referenced in the test methods.3. DEFINITIONS
18、 For the purpose of this document, the definitions given in ISO 5598 shall apply.SAE INTERNATIONAL J2682 AUG2016 Page 3 of 54. GENERAL REQUIREMENTS4.1 Test PressuresThreadless connections vary by design between manufacturers and as a result so do maximum working pressures. Contact manufacturer for a
19、pplicable test pressures.4.2 Test SamplesAll components tested shall be tested in the final form (as the customer receives the part). Unless otherwise specified, test samples shall be comprised of a connected male and female half. 4.3 Assembly ProceduresConsult manufacturer for applicable assembly a
20、nd disassembly instructions.4.4 Test FluidsSelect a hydraulic fluid suitable for most hydraulic systems. Test fluids must be used as agreed upon between the customer and the manufacturer. 4.5 Test TemperaturesTest temperature (ambient and liquid) shall be 15 C to 35 C, unless otherwise specified by
21、the user or by the controlling International Standard.4.6 Test FrequencyQualification testing shall be required when there is a change in design, material or manufacturing process. Otherwise, the test frequency shall be decided between the user and the manufacturer.4.7 TEST REPORTSTest reports shall
22、 be reported on the test data form in Appendix A.5. TEST METHODS (AS AGREED BETWEEN THE MANUFACTURER AND USER)Each test requires the use of a new set of samples and should not be reused or returned to stock after completion of the test.5.1 Burst Pressure TestSee ISO 19879.5.2 Vacuum Pressure Test95
23、kPa vacuum, See ISO 19879.5.3 Cyclic Endurance (Impulse) With Side LoadSix samples shall be impulse tested one million cycles in accordance with ISO 19879, while simultaneously applying a side load of 50 N to verify the fatigue strength and that the connections are leak free. The side load shall be
24、applied and positioned as detailed in ISO 18869 Figure 1. After the impulse test, parts shall not fail and must maintain class 0 leakage per SAE J1176 when subjected to proof pressure testing at twice the working pressure.SAE INTERNATIONAL J2682 AUG2016 Page 4 of 55.4 Cyclic Endurance (Impulse) With
25、 RotationSix samples shall be impulse tested to a number of cycles as agreed between manufacturer and user with rotation per ISO 18869 Clause 21. Test pressure shall be 133% of the working pressure. No performance deterioration shall be visible including the ability to disconnect (if applicable). Pa
26、rts shall not fail or show leakage when subsequently proof pressure tested at twice the working pressure to ensure class 0 leakage per SAE J1176.Note: In general, threadless connectors are not rotating members and shall not be used in applications that require rotation unless otherwise designed to r
27、otate.5.5 Connect and Disconnect Test (If Applicable)Three samples of male and female halves shall be connected and disconnected a total of 10 cycles (unless otherwise agreed upon between manufacture and user). A cycle is defined as two halves being connected and then subsequently disconnected. Part
28、s shall not fail and must maintain class 0 leakage per SAE J1176 when subjected to proof pressure testing according to ISO 19879.5.6 Force to Connect TestTen samples of male and female halves shall be pushed together in the vertical plane at a rate of 127 mm/minute until the two halves latch togethe
29、r. The maximum load required to force the two halves together shall be agreed upon between manufacturer and user.5.7 Dust Box Vibration and Seal Integrity Test (Not Under Pressure)To ensure contaminants do not affect connector performance, four samples of male and female halves shall be subjected to
30、 a dust box vibration test with the following test parameters;xFrequency Sweep: 11 50 HzxAcceleration: 4gxSweep Velocity: 30 Hz/minxTest duration 48 HoursAttach dust box to a vibration table such that the bottom of the box sets on the table and the samples move in the horizontal direction perpendicu
31、lar to the through hole axis. The samples shall be rigidly and horizontally mounted in the dust box and half covered with fine (900 kg/m3) dust particles per MIL-STD-810G Environmental Engineering Considerations and Laboratory Tests, Method 510.6 Sand and Dust.No measurable wear or performance deter
32、ioration shall be visible including the ability to disconnect (if applicable). Parts shall not fail or show leakage when subsequently proof pressure tested at twice the working pressure to ensure class 0 leakage per SAE J1176.For design specific applications, test parameters and performance criteria
33、 will be defined as agreed between the manufacturer and user.NOTE: Parameters can be adjusted to match application.6. NOTES6.1 Revision IndicatorThe change bar (l) located in the left margin is for the convenience of the user in locating areas where technical revisions have been made to the previous
34、 issue of the report. An (R) symbol to the left of the document title indicates a complete revision of the report.PREPARED BY THE SAE FLUID CONDUCTORS AND CONNECTORS TECHNICAL COMMITTEE SC1 - AUTOMOTIVE AND HYDRAULIC TUBE AND FITTINGSSAE INTERNATIONAL J2682 AUG2016 Page 5 of 5APPENDIX ANORMATIVE - T
35、EST DATA FORMSpecification for connection being tested: SAE Standard . Date: Manufacturer . Test facility: . SizeDimensional discrepancies and special notes: .Name (printed/typed) of tester: Signature of tester: Burst test results: Minimum number of samples tested = 3 Note: Failure pressure test (Bu
36、rst) results equals four times the WPSample No. Pressure at failure1 . MPa .2 . MPa .3 . MPa .Vacuum test results: Minimum number of samples tested = 3Sample No. Absolute pressure1 . kPa .2 . kPa .3 . kPa .Cyclic endurance with side load test results: Minimum number of samples tested = 61 . Pass Fai
37、l Failure Description 2 . Pass Fail Failure Description 3 . Pass Fail Failure Description 4 . Pass Fail Failure Description 5 . Pass Fail Failure Description 6 . Pass Fail Failure Description Cyclic endurance with rotation test results: Minimum number of samples tested = 61 . Pass Fail Failure Descr
38、iption 2 . Pass Fail Failure Description 3 . Pass Fail Failure Description 4 . Pass Fail Failure Description 5 . Pass Fail Failure Description 6 . Pass Fail Failure Description Connect and Disconnect Test: Minimum number of samples tested = 3 (Connect and disconnect 10 times each sample)1 . Pass Fai
39、l Failure Description 2 . Pass Fail Failure Description 3 . Pass Fail Failure Description Force to Connect Test: Minimum number of samples tested = 101 . Pass Fail Failure Description 2 . Pass Fail Failure Description 3 . Pass Fail Failure Description 4 . Pass Fail Failure Description 5 . Pass Fail
40、Failure Description 6 . Pass Fail Failure Description 7 . Pass Fail Failure Description 8 . Pass Fail Failure Description 9 . Pass Fail Failure Description 10 Pass Fail Failure Description .Dust Box Vibration and Seal Integrity Test: Minimum number of samples tested = 41 . Pass Fail Failure Description 2 . Pass Fail Failure Description 3 . Pass Fail Failure Description 4 . Pass Fail Failure Description Figure 1 - Test data form
