Aging test method of glued flywheel bolts under high and low temperature environment
An aging test, high and low temperature technology, applied in the direction of detecting the appearance of fluid at the leakage point, measuring devices, instruments, etc., can solve the problems of high cost, complicated test methods, etc., achieve low cost, realize detection, and realize sealing performance Effect
Active Publication Date: 2012-08-29
DONGFENG MOTOR FASTENER CO LTD
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Problems solved by technology
[0003] The current test method is more complex and costly
Method used
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[0011] combine figure 1 As shown, the present invention is further described as follows:
[0012] The high and low temperature environmental aging test method for glued flywheel bolts, the steps are as follows:
[0013] (1) Create a closed oil storage environment: there is a backing plate 2, a plurality of tubular oil storage aids 3, plugging 4, one end of the tubular oil storage aids 3 is provided with an internal thread matching the flywheel bolt, and the tubular oil storage The other end of the oil auxiliary device 3 is provided with a pipe thread; after the engine flywheel bolt 1 is glued, it is connected with the tubular oil storage auxiliary device through the backing plate 2, and the engine oil is installed in the tubular oil storage auxiliary device, and the plug 4 is glued and then tightened On the pipe thread at the other end of the tubular oil storage aid 3; thereby forming a device with a closed oil storage environment;
[0014] (2), put the device with a closed ...
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The invention provides an aging test method of glued flywheel bolts under high and low temperature environment in order to simplify the aging test of engine flywheel bolt gluing and reduce the cost. The technical scheme is as follows: (1) creating the closed oil storage environment: the glued engine flywheel bolts are connected with tubular oil storage assistive devices by a base plate, engine oil is filled in the tubular oil storage assistive devices, and glued plugs block off the other end of the tubular oil storage assistive devices, thus forming a device with closed oil storage environment; (2) placing the device into an oven at the temperature of 140-150 DEG C for 5-6 hours; (3) then placing the device into an ultralow temperature thermosistor at the temperature of minus 20-minus 30 DEG C for 5-6 hours; and (4) removing the plugs, pouring out the engine oil and screwing on breather pipe joints; heating the engine oil to 140-150 DEG C, then placing the device into the engine oil, adjusting the air pressure to 0.3-0.4Mpa, introducing air and keeping introducing for 8-10 minutes to detect whether bubbles appear.
Description
technical field [0001] The invention relates to an aging test method for engine flywheel bolts after glue coating. Background technique [0002] Aiming at the aging test of engine flywheel bolt glue coating, it is necessary to build a closed oil storage environment device for the flywheel bolt glue aging test, so that this device can be conveniently placed in high and low temperature equipment at 150°C to minus 30°C, which is convenient for subsequent processing. Pressure testing and sealing performance test. [0003] The current test method is more complicated and costly. Contents of the invention [0004] In order to simplify the aging test of the glue-coated engine flywheel bolts, reduce the cost, and meet the aging test requirements of the glue-coated engine flywheel bolts, the invention proposes a high-low temperature environmental aging test method for the glue-coated flywheel bolts. [0005] For this reason, the technical scheme of the present invention is: high a...
Claims
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IPC IPC(8): G01N17/00G01M3/06
Inventor 冯军许俊王劲风
Owner DONGFENG MOTOR FASTENER CO LTD