Method for determining strength of adhesive connection between synchronizing ring and friction lining
A technology of friction lining and adhesive, which is applied in the direction of friction lining, using stable tension/pressure to test the strength and strength characteristics of materials, and can solve the problems of inaccuracy
Pending Publication Date: 2020-12-18
代傲金属合作两合公司
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The strength of the adhesive connection between the synchronizer ring and the friction lining cannot be accurately and reproducibly tested with current methods
Method used
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Embodiment Construction
[0037] exist figure 1 The reference numeral 1 indicates a housing which is fastened to the lower fixed cross section of a universal testing machine or a tension / compression testing machine (not shown here) in order to carry out the first method variant (tensile test). on the pole. Reference numeral 2 designates a clamping device, which is connected to the carrier 1 , for example by means of screws 3 . The synchronizer ring 4 to be tested is held in the clamping device 2 .
[0038] The reference numeral 5 designates a pin which, for carrying out the first method variant, is fastened to the moving crossbar of the tension / compression testing machine (not shown here). On its end facing the carrier 1 , the pin 5 has an external thread, onto which the connecting body 6 is screwed.
[0039] exist figure 2The connection between the connecting body 6 and the synchronizing ring 4 is shown in detail in . Reference numeral 7 denotes a friction lining which is glued to the conical fi...
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The invention relates to a method for determining the strength of a first adhesive connection made of a first adhesive between a synchronizing ring and a friction lining and / or the strength of a friction lining bonded to the synchronizing ring. The method comprises the following steps: providing a tension / compression testing machine, which is provided with a holding or supporting device used for holding a synchronous ring and a connecting body installed on a movable transverse rod of the tension / compression testing machine, wherein the connecting body is provided with a matching surface corresponding to a free surface of a friction lining; applying a second adhesive to the surface and / or the mating surface and producing a second adhesive connection between the connecting body and the friction lining under predetermined conditions so as to form a connection between the connecting body and the synchronizing ring; moving the transverse rod relative to the holding or supporting device to apply an increased force to the connection; and measuring the force when the connection between the connecting body and the synchronizing ring is broken.
Description
technical field [0001] The invention relates to a method for determining the strength of a first adhesive connection made of a first adhesive between a synchronizing ring and a friction lining and / or of a friction lining bonded to a synchronizing ring. method. Background technique [0002] It is generally known from the prior art to install synchronizer rings in the transmission of a motor vehicle. Synchronizing rings are also used here, which are bonded to the friction linings. For quality assurance, it is necessary to test the strength of the adhesive connection between the synchronizer ring and the friction lining. For this purpose, according to the prior art an attempt is made to disengage the friction lining from the synchronizing ring in the circumferential direction by means of a tool. The strength of the adhesive connection is considered to be insufficient if sections of the friction lining that exceed a predetermined value can be detached by means of a tool. Cur...
Claims
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IPC IPC(8): G01N3/08G01N3/02F16D69/04F16D23/04
CPCG01N3/08G01N3/02F16D69/04F16D23/04F16D2069/0466F16D2250/0069F16D23/025G01N19/04
Inventor C·霍普M·格鲁纳
Owner 代傲金属合作两合公司