This standard specifies the test method for the longitudinal bending stiffness of leather shoe shanks. This standard is applicable to the determination of the longitudinal bending stiffness of leather shoe shanks, and also to the determination of the longitudinal bending stiffness of combined insoles and semi-soles. QB/T 1813-2000 Test method for longitudinal stiffness of leather shoe shanks QB/T1813-2000 Standard download decompression password: www.bzxz.net

Classification No. Y78
Registration No. 1302-9000
Light Industry Standard of the People's Republic of China
CB/T 1813-2000
Test method for longitudinal stiffness of leather shoe hooks
Published on 2000-06-13
Published by the State Bureau of Light Industry
Implementation on 2000-10-01
Qa/T1813-2000
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This standard is a revision of the 1813-1991 test method for longitudinal stiffness of leather shoe hooks. This test method expands the application of these test methods and can measure the bending stiffness of angled copper insoles, component insoles and semi-sole soles.
This standard is equivalent to the British standard B85131/4,181995 "Test method for longitudinal stiffness of steel shanks". This standard is issued by the National Light Industry Sound Industry Administration Bureau and is under the jurisdiction of the National Shoemaking Standardization Center. The drafting unit of this standard is the Light Industry Shoe Research Institute. The main drafters of this standard are Yan Huaidao, Wan, Yan Hongwei, Chen Guoping, and Tian Wang. From the date of implementation of this standard, the QR/T1813*1993 test method for longitudinal stiffness of leather shoe shanks issued by the former Light Industry Administration Bureau will be abolished.
1 Scope
Light Industry Standard of the People's Republic of China
Test method for longitudinal stiffness of leather shoe shanks
This standard specifies the test method for longitudinal stiffness of leather shoe shanks, QB/T 1813-·2000
Replaces QB/T 1813-1993
This standard is applicable to the determination of longitudinal stiffness of leather shoe shanks, and is also used for the determination of longitudinal stiffness of combined insoles and semi-soles.
2 Principle
Fix the rear end of the shank and stir it in front of it to produce a beam-like bending deformation. The seam strength of the shank (combined inner sole and semi-supporting sole) is measured, and the longitudinal bending stiffness is calculated based on this. 3 Specimens
9.1 The test samples are shank, inner sole, and semi-supporting sole. 3.2 Two specimens per group.
4 Instruments and Equipment
4.1 The test position of the shank of leather shoes for longitudinal stiffness should meet the following conditions (see Figure 1). 4.1.1 After the shank The clamping length of the fully clamped plate is 32mm. The clamping length of the multi-center with a degree of 18mm. 4.1.2 The tilt angle of the hook pin fixture is not less than 30°. 4.1.3 The clamping length of the plate from the front end of the hook is 12mm. 4.1.4 The axis of the staggered axis of the front end of the lower plate should be within 1.0: the balance group including the inner bottom and the half should be within 2.0m.
4.1.5 The dial gauge for measuring deflection: the range is 0~10mm, the change is 0. 0imm4.1.6 Test the core of the special silicon code four decisions, each piece of quality (2001). 4.1.7 The test combination should have corresponding special front and rear fixtures and base weights. 4.2 The score is 0.m called vernier caliper.
National Light Industry Bureau 2000-06-13 approved
2000-10-01 implementation
dosage can be damaged
water dry surface
OB/4.1813—2000
i KAoNiKAca-
t-Rear end upper plate: 2-Rear lower plate: 3-Center: 4-Pin rotation: 5-V-type: 6-Support ear: 7-Code: 8-Digital indicator, 5-Front upper plate 110-Front lower plate, 11-Front clamping plate fixing screw, [2-Hanging; 13-Rear end central plate fixing screw: 14-Adjusting screw Figure 1 Schematic diagram of the rigidity tester
5 Test accessories
5.1 Clamps and codes and test mixing and other related elements. 6. 2 The ambient temperature is constant.
6 Test steps
6.1 Put the shank with ribs on the surface, push the rear end into the rear end, and clamp the shank to 32mm. The shank is perpendicular to the back of the splint, and the rear clamp is tight. The length of the shank with angle is 18mm: the combined inner bottom and the half bottom are on the surface, and the rear end is caught in the clamp. The length of the splint is 32mm. The dividing line of the combined inner bottom must be perpendicular to the front edge of the splint, and the rear clamp is tightened. 6.2 Clamp the front clamp At the end of the hook, adjust the inclination of the tool so that the front and rear holding points are in the same horizontal plane and then fixed. Add a few ears on the holding point, and then hang the code plate with B00g weight. The combination of the inner bottom and the half support are separated, and the silicon code with 1600g is pulled on the combination inner bottom 12mm from the front end of the hook of the combination inner bottom. The half support is a code plate. Under the action of the magnetic code, the deflection is not more than B.5mum. B.3 Fix the position of the dial indicator, remove the weight, and zero the white dial. 1813-2000Www.bzxZ.net
.4 Add 200% of the code on the base code plate of the loading lug (the code for the combined inner bottom is 400% and the code for the half-supporting bottom is 100%g), and read the value after the micro-fixation, and then read the table value when it is stable. In this way, the table value can be obtained. c4
6.5 Remove the loading lug, measure the distance between the front edge of the rear clamp and the rear edge of the front protrusion, and take a micro-reading on the upper and lower tables of the hook, and calculate the average value. This value plus 6mm is the length of the hook. Test results
.1 Calculate the statistical viscosity of the hook (combined inner bottom, half-supporting bottom) according to formula <1). 3a+-a,)+-a
武，a
Statistical stiffness of the sample generated by each base code: mm: The heat generated by the sample of the first magnetic code is 7.2 (2) or calculate the anti-variable stiffness
Where: 3
Sample anti-variable stiffness, kN·mn
Chassis of the code, 200g of the hook: 400g of the inner bottom, 100g of the half bottom: a--Statistical stiffness of the sample, mm:
One bending square sample, mum.
7.3 The stiffness value of each sample is expressed separately, and the integer is taken. 8 Test report
B.1 Note: The test is carried out according to this standard,
B.2, station end number, name, material, heel height, specification, number of combined inner bottom and half bottom, manufacturer. B.3 Test results, measure the angle of the two sides and the angle of the hook with angle B.4 Test the person and the target period,
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