This standard specifies the test method for the resistance of hose specimens to a quantitative external flattening load. This standard applies to rubber or plastic hoses. GB/T 5566-2003 Test method for resistance to flattening of rubber or plastic hoses GB/T5566-2003 Standard download decompression password: www.bzxz.net

This standard replaces the national standard T55-1935, which is a relatively safe and reliable test method for rubber or plastic hoses. The standard is drafted by the National Standard ... It is the user's responsibility to formulate appropriate safety and health regulations and ensure compliance with national regulations. 1. This standard specifies the test method for the resistance of hose specimens to quantitative external pressure. This standard uses butyl rubber or plastic to obtain: 2. The test time after production is not effective. Take one of the soft finished products and cut a section of hose with a length of 10mm at its intended position as the final sample. The test is carried out in a test room with a center of 3 or above (23 cm). The 3b can be included in the above 41. 3 Instruments and Equipment
3.1 Tensile testing machine; the load of the hose should be between 5% and 10% of the full load of the testing machine: 3.2 inch 3.02mm
3.3 Plate size: 200m gauge:
3.4 ​​Changing device (as shown in Figure 1).
Upper joint,
Baizheng drip plate standard rod bzxZ.net
FE foil recovery:
Lower piece Weng plate!
Upper and rear plate support:
-lower connection will
: Upper pressure rate size is length: Deng ×-12ULu.×80mxmm diagram vector
GB/T5566—2003
Change the upper and lower parts of the test machine, and tighten them on the test machine. Adjust the balance of the test machine to zero.
4.2 Draw a line A on the test specimen that is parallel to the axis and equal to the test specimen. Point A is the midpoint. Point B is 2, and the arithmetic average of the six points around the test point is used as the relative pressure before the test.
4.3 Place the test fence 7 between the two boxes of the test machine, so that point B is in the middle of the compression plate, so that the test fence is subjected to pressure, adjust the pressure to the extreme, 1m, and record the reading on the test table. 4.4 This force test is based on (30- mm: mir's non-speed compression: when the specified load is reached (that is, the load indicator number minus the toughness number of the machine, maintain the load for a specified time according to the product standard), measure the compression plate and the climber (accurate to o.Jmm:
45 The production party will test the machine at the original speed and the load is zero, and the machine will be placed for a specified time (the product standard is established: after the machine is turned on, the load reaches the value and the pressure box plate is called the quality benefit (the test result is accurate to: mr: 5 The test result
is expressed in terms of giant shrinkage deformation room and compression permanent deformation rate, 5.1k The gradual deformation rate is calculated in the formula:
The arithmetic mean of the initial diameter of the hose (that is, the initial load height (: the lower pressure box plate turn), the unit is: mm): the product height of the hose diameter under the current specified load, Single for variable (mr! 5.2 pressure seam water long industry shape:) installed type 2 meter screen: e
a hundred Zhu initial outer diameter of the teacher large horizontal fear, that is, under the initial negative recommendation (: the distance between the plates! The unit is millimeter (mm!: - except for the current negative Shangzhuo ceasefire test details under the action of the distance between the pressure screen plates, the unit is intention (1mrml5.33 parallel test results did not take the maximum value (the meter is strictly accurate U.00C). 6 Test report
Unless otherwise completed, the sales should at least include the following contents:) hose name and specification,
cause and number
=) technical mark fraud number:
test benefit relative humidity
test period:
test results:
other necessary instructions.
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