Leather Vamp Flexing Extensibility Testing Machine
Introduction:
Vamp Flexing Tester is used to determine the propensity for materials to crack or otherwise fail at flexing creases, but can also be used to assess whether leathers are likely to produce salt spue. In particular the test simulates conditions in the vamp part of footwear during walking. The test can be conducted with either wet or dry specimens at room temperature. The method is applicable to all flexible materials and in particular those used to manufacture outers and linings of footwear uppers such as leathers, coated fabrics and textiles.
Principle:
A square specimen of the material is folded over two inverted V-shaped clamps. The clamps are able to move relative to one another so that as they become closer the specimen is flexed to produce one downward crease surrounded by four upward creases. During the test the clamps oscillate at a constant speed so that the specimen is repeatedly flexed. After a predetermined number of cycles the test is stopped and the specimen is visually examined for signs of damage or salt square.
How are Flexibility of shoe vamps measured?
ISO5423 shoe upper leather stretching and bending testing machine, this machine simulates the shoes in the process of walking, the different parts of the shoe upper leather will be subjected to forces such as stretching, squeezing, bending, etc., resulting in scratches, wrinkles or damage to the shoe material. The machine is simulating this test as a reference for the quality improvement or purchase of upper materials, and it has a power-off memory function.
Standards:
EN ISO 20344-2004 Section 6.5.2
EN ISO 22288
ISO 5423 section 5.2
SATRA TM25
GB/T 20991 Section 6.5.2
GB/T 20991 Section 6.5.2
AS/NZS 2210.2 Section 6.5.2
Parameter:
Stretching distance：(19±0.5) mm
Scaling speed：(300±30) CPM
Specimen size：(64×64) mm
Number of samples：12pcs
Fixture：40°V v-shape6.4mm (R)
Counter：6-digit LCD digital display
Power supply：1 Φ, AC 220 v, 2 a
Volume：approx. (55x35x30) cm
Weight：approx. 60kg
在线联系供应商
Other supplier products
 |
Automatic Button Attach Machine | Applications: Automatic raining coat button setting machine is automatic button attaching machine with automatic upper and lower feeding, automati... |
 |
KES - FB2 - SH Single - Strand Bending Tester | Content The Single Fiber Bending Tester makes it possible to easily measure and quantify softness, elasticity, and diffusion differences in a si... |
 |
Carpet Abrasion Resistance Tester | Standard ASTM D4157(Standard Test Method for Abrasion Resistance of Textile Fabrics (Oscillatory Cylinder Method)) ISO 12947-2(Textiles - Deter... |
 |
Safety hat antistatic performance tester | Safety hat anti-static performance tester according to the new national standard GB/T 2812-2006 "Safety hat test Method", GB/T 2811-2019 "Safety ha... |
 |
Intervertebral Fusion Cages Shear Fatigue Tester | Standard YY/T 0959-2014 (China): Specifies shear fatigue testing protocols for intervertebral fusion devices, including load ratios, frequency, ... |
Same products
 |
Custom Stainless Components for OEM Applications | 卖方: Yongjia County Yaokang Technology Co., Ltd. | Our stainless steel float balls are designed for float valves, water tanks, and industrial liquid... |
 |
FH-77富氢测试笔 | 卖方: 科立龙电子股份有限公司 | 产品说明： 用于测量氢气水（富氢水）和氢气水发生器的溶解氢含量。 特征： 1、电极更换方便 智能、携带方便、操作方便、实用； 产品广泛应用于食品、环卫、地质勘探、冶金、地表水、 ... |
 |
Xenon Arc Weather Ometer | 卖方: Standard Group (Hong Kong) Limited | Get a quote： Whats/App: +86 181 0160 0864 SI4000Xenon Arc Weather Ometer utilizes a xenon lamp ... |
 |
Xenotest | Light Fastness Tester Si220 (SunTest) | 卖方: Standard Group (Hong Kong) Limited | Get a quote： Whats/App:+86 180 0160 0864 A Light Fastness Tester, or Xenon Tester, Accelerated ... |
 |
Ozone Aging Chamber | 卖方: Standard Group (Hong Kong) Limited | Get a quote： Whats/App:+86 156 1874 6768 The Ozone Aging Chamber is a precision testing instrum... |
