1、 EIA STANDARD TP-95 Full Mating and Mating Stability Test Procedure for Electrical Connectors EIA-364-95 April 1999 ELECTRONIC COMPONENTS, ASSEMBLIES see clause 6. Method C should be performed in conjunction withmethods A or B when assessing environmental effects.1.4.3.1 Test method C-1, transfer in
2、dicatorUsing a transfer compound (such as a bluing compound) as an indicator on one of the connectormating surfaces, check the opposing mating surface following a fully mating test. This opposingmating surface should indicate evidence of marking transfer. Transfer of marking material shall bethe ind
3、ication of achieving metal to metal bottoming.EIA-364-9531.4.3.2 Test method C-2, deformation indicatorUsing a thin deformable material (such as Plastigauge ) between the connector mating surfaces,check the thickness of the deformable material following a fully mating test. Deformation of thethin de
4、formable material to 0.02 millimeters (0.001 inch ) thickness or less shall be the indicationof achieving metal to metal bottoming.2 Test resources2.1 Equipment2.1.1 Test method A, test measurement for mating stabilityFixtures to hold the connector receptacle in its intended mounting configuration s
5、hall be provided.A suitable marker may be used to place indicator marks on the plug shell and receptacle shell.Magnification equipment may be used to allow accurate measurement 0.02 millimeters (0.001inch ) of the relative mark or feature locations.2.1.2 Test method B, test measurement for coupling
6、ring stabilityFixtures to hold the connector receptacle in its intended mounting configuration shall be provided.A suitable marker may be used to place indicator marks on the coupling ring and receptacle shell.Magnification equipment may be used to allow accurate measurement 0.02 millimeters (0.001i
7、nch ) of the relative mark or feature locations.2.1.3 Test method C, metal-to-metal bottomingFixtures to hold the connector receptacle in its intended mounting configuration shall be provided.A transfer compound shall be used to mark the appropriate surface in accordance with method C-1 if that meth
8、od is used. A thin, deformable material suitable for the purpose of indicatingpressure application between 2 mating surfaces shall be used in accordance with method C-2 ifthat method is used. Suitable magnification equipment to examine the indicators shall be availablefor post-test measurement / eva
9、luation.3 Test specimen3.1 DescriptionThe test specimen shall consist of a mated pair of connector assemblies including multiplecontacts, the exterior of the connector receptacle being marked appropriately to allow observationof relative change between connector plug and receptacle shells during exp
10、osure to environmentalor mechanical influence. This may be a standard marking which is placed on the connector shellas a normal indication of full connector mating engagement or a mark added to the exterior of theappropriate connector shell.EIA-364-9543.2 Preparation3.2.1 Test method A, test measure
11、ment for mating stabilityThe connector pair shall be coupled to the fully mated condition by appropriate means for thatconnector coupling design, such as hand-tightening for bayonet coupling mechanisms ortightening to achieve a visual indication. Features may be selected as observation indicators or
12、 amark may be applied to the plug and receptacle shell coplanar to the central axis of the connector.Marks or features shall be on both sides of the mated pair about 180 apart to make two sets ofmeasurements. The axial distance between indicator features should be recorded prior toexposure to test c
13、onditions to the nearest 0.02 millimeters (0 .001 inch). Results shall be averagedfrom both sides.3.2.2 Test method B, test measurement for coupling ring stability3.2.2.1 The connector pair shall be coupled to the fully mated condition by appropriate means forthat connector coupling design, such as
14、hand-tightening for bayonet coupling mechanisms ortorque wrench tightening to specified values for threaded coupling mechanisms. Radial marksshall be applied to both coupling ring and receptacle shell. Relative location of (distance between)the radial marks shall be recorded prior to exposure to tes
15、t conditions.3.2.2.2 Axial marks shall be applied to both plug coupling ring and to the receptacle shell.relative location of (distance between) the axial marks should be recorded prior to exposure totest conditions.3.2.3 Test method C, metal-to-metal bottoming3.2.3.1 Test method C-1 transfer compou
16、ndApply transfer compound (such as bluing compound) to one surface, either the plug or thereceptacle, on the surface expected to complete metal-to-metal bottoming. Application should bein accordance with the transfer compound manufacturers recommendations, i.e. less than0.05mm (.002 inch) thick The
17、connector pair shall be coupled to the fully mated condition byappropriate means for that connector coupling design, such as hand-tightening for bayonetcoupling mechanisms or tightening to achieve a visual indication. Care shall be taken not toovertighten the connector pair. The connector pair shall
18、 be uncoupled for examination of themating surfaces. The mating surface opposing the surface to which marking transfer compoundwas applied shall be examined. This opposing surface should indicate evidence of markingtransfer if metal to metal bottoming has occurred.EIA-364-9553.2.3.2 Test method C- 2
19、 deformation indicatorThe thickness of thin deformable indicator material shall be measured. Prior to coupling of theconnector pair, this material shall be positioned between the connector mating surfaces. Theconnector pair shall be coupled to the fully mated condition by appropriate means for thatc
20、onnector coupling design, such as hand-tightening for bayonet coupling mechanisms ortightening to achieve a visual indication. Care shall be taken not to overtighten the connectorpair. The connector pair shall be uncoupled for examination of the mating surfaces. The thindeformable material shall be
21、removed and the thickness measured either directly or indirectly (achange in width can be used to estimate the change in thickness). Deformation of the thindeformable material 0.02 millimeters (0.001 inch) thickness or less shall be indication of achievingmetal to metal bottoming.4 Test procedure4.1
22、 Test method A, measurement for mating stability4.1.1 Exposure to test environmentThe connector pair under test shall be exposed to the desired environmental and/or mechanicaltest(s).4.1.2 Post-test examinationThe connector pair, after having been exposed to the test conditions, shall be examined fo
23、rrelative alignment of the indicator features. The relative location of (distance between) thealignment features shall be recorded and compared to the initial (pre-test) relative location of thesame features.4.2 Test method B, measurement for coupling ring stability4.2.1 Exposure to test environment
24、The connector pair under test shall be exposed to the desired environmental and/or mechanicaltest(s).4.2.2 Post-test examinationThe connector pair, after having been exposed to the test conditions, shall be examined forrelative location of the indicator features. The relative location of (distance b
25、etween) the radialand axial indicator features shall be recorded and compared to the initial (pre-test) relativelocation of the same features.EIA-364-9564.3 Test method C-1, metal-to-metal bottoming4.3.1 Perform 3.2.3.1.4.3.2 Subject specimens prepared in 3.2.1 or 3.2.2 to the procedure specified in
26、 4.1 or 4.2.4.3.3 Clean specimens.4.3.2 Repeat 3.2.3.1.4.4 Test method C-2, metal to metal bottoming4.4.1 Perform 3.2.3.24.4.2 Subject specimens prepared in 3.2.1 or 3.2.2 to the proce dure specified in 4.1 or 4.2.4.4.3 Clean specimens.4.4.4 Repeat 3.2.3.2.5 Details to be specifiedThe following deta
27、ils shall be specified in the referencing document:5.1 Test method to be used : A, B, C-1, C-2.5.2 Description of connector specimen to be used.5.3 Connector initial condition to be achieved prior to the test.5.4 Induced test to be conducted on the connector specimen.5.5 Post-test measurements to be
28、 taken following the induced test.EIA-364-9576 Test documentationDocumentation shall contain the details specified in clause 5, with any exceptions, and thefollowing:6.1 Title of test6.2 Description of the type and overall physical construction of the connector specimen tested.This includes any spec
29、ial markings added to the specimen for purposes of evaluation under theguidelines of this test procedure.6.3 Test equipment used, and date of last and next calibration6.4 Description of test fixture6.5 Initial condition description of the connector under test6.6 Final condition description of the co
30、nnector under test6.7 Name of operator and date of testEIA Document Improvement ProposalIf in the review or use of this document, a potential change is made evident for safety, health or technicalreasons, please fill in the appropriate information below and mail or FAX to:Electronic Components Indus
31、try AssociationEngineering Department Publications Office4212 Rock Hill Road, Suite 170Herndon, VA 20170-4212Phone: (571) 323-0294Document No. Document Title:Submitters Name: Telephone No.:FAX No.:e-mail:Address:Urgency of Change:Immediate: At next revision:Problem Area:a. Clause Number and/or Drawing:b. Recommended Changes:c. Reason/Rationale for Recommendation:Additional Remarks:Signature: Date:FOR EIA USE ONLYResponsible Committee:Chairman:Date comments forwarded to Committee Chairman:
