Continuous Visual Skate Shoes Assessment During Operation

All types of Skate Shoes, vulcanized rubber produced more portable, micro-cellular models of shoes, has been confirmed has the versatility and acceptability of nature, accounted for 50% of the total rubber. For leisure, fashion and everyday wear, footwear, this test is considered to be too strict, in particular, is very thick soles. The SATRA Rennewart soles flexural testers (STM465) is designed to ensure that the balance of power, and therefore requires a smaller force to perform the test run results are more stable. Instrument clip stiffness, in strict accordance with the standard operation. Adaptation of a revision Bennewart tester, using the spring action clip, do not follow the standard of this test. But can provide a low-temperature version of this instrument, to perform the test as low as -20 ° C temperature environment. Can be provided with a chisel cutting jig (STM465) to help the accurate cutting of the soles. Innovation sole material of the sole material is booming in the past about 70 years is a dramatic process. In the 1930s, only the leather of the shoe sole materials, thin crepe rubber board and woodblock. We can not as the wood of the formal material of the shoe, although there the clogs exists - interesting, clogs and allows people to relive the lack of commonly used materials of World War II era. 2,40's vulcanized rubber production, post-war synthetic substances such as styrene - butadiene rubber and resin rubber began to develop. Rubber resin is a thin sheet, use it to produce court shoes are still very popular. 3,60's polyurethane, thermoplastic material such as polyvinyl chloride followed. 4,70's thermoplastic rubber and thermoplastic polyurethane put into use. 5,80 years added to the EVA. 6,90's production of vulcanized rubber. The first breakthrough of the sole material development of POE-polyester elastomers. And leather, natural rubber, even if the quality is generally still is a major feature of the sole material. The most interesting is the first to be acceptance of the sole material - rubber and polyvinyl chloride can be continued in the market dominant position and it seems will be continued in this state for some time in the future. This is because they have a wide range of acceptability, has a price advantage compared with other materials, and rubber or PVC, has been constantly evolving to meet the modern needs such as light and have a larger design space . All the different varieties of rubber soles together accounted for all the soles of the world about half of the number. This is a demanding test, the most suitable for use with strong soles durable footwear.
Machine to the standard discount skate shoes speed of 60 times per minute deflection flexural samples. The soles flexural crack testing during the entire life of the footwear, the soles inevitable after continuous deflection did not form the process of cracking or fracture. This article describes the resistance to flex cracking test methods and equipment used to assess the soles. Strain due to the flexing of the foot soles may wear cracking or fracture. Fengrui edge to cut the gap and pierce, there will be a crack or fracture, continuous deflection effect will gradually become the crack. Extreme temperatures (especially below zero) and pollution (eg oil) may also accelerate the soles cracking. Therefore, testing the soles of the anti-flex cracking is very important, and can choose the test method, and thus may be difficult to choose the correct way. This article describes three kinds of rubber and plastic soles main deflection test methods, applications, and SATRA to provide equipment for these tests. Ross Flexural test for smooth and with little or no soles sole design, you can use the Ross Flexural test machine (SATRATM60,). Generally removed from the shoes on the three dimensions of 150 mm × 25 mm specimen, the longer edge of the heel seat parallel. The blade is 2 mm chisel to cut an incision in the sample, then samples were placed in flexural machine, so the incision is located in the the deflection heart axis above. Measured before the test and test after incision, we can calculate the increase of the incision. This test is generally run in the temperature of -5 ° C 150 000 cycles. This can help the formation of the incision to increase the degree can be measured within a reasonable period of time. The only exception to +20 ° C testing of thermoplastic rubber, because it is better performance at a lower temperature. Of SATRA Ross, deflection Tester (STM141) can accommodate up to 12 specimens. The entire sole letter composed of rubber, the advantage is to wear non-slip, the drawback is that too much weight. CAT's work shoes with the soles, also known as insulated soles.
Room temperature operation of 30 000 cycles to measure the degree of increase of the incision. If you need to perform this test can be below zero in SATRA. In addition to standard machines, can also provide the lower and higher temperature equipment. Such a temperature range from the external temperature to -20 ℃ and the temperature to +40 ° C from the periphery. Bata with a test sole containing the complex design of plywood or the integration of different materials, SATRA test anti-flex cracking is the best way to Bata with a tester. This is a generally accepted test can be repeated to produce the actual wear and tear of the relevant results. Followed by the front of the complete soles (less but still contain a cavity hole fillers or materials) bonded to the canvas belt. In part through a different diameter from tempted shaft drive, belt driven spindle, sole is recycled repeated deflection. From the axis is generally fond of diameter 90 mm, but can be changed to 60 mm or 120 mm, in order to increase or decrease the degree of flexing. Ross flex test, do not cut the soles. The test run of 50 000 cycles, continuous visual assessment during operation. Record the length and depth of any crack. This test is generally performed at room temperature, but of SATRA, can be reached in the minimum temperature of -15 ° C test soles. Bata with a deflection instrument (STM459) with a size of 60 mm, 90 mm and 120 mm in three to replace the the from tempted shaft as standard configuration, the rotation speed per minute in smaller mandrel 90 times deflection. Can also provide a lower temperature version of the machine to test as low as -20 ° C temperature. Bennewart test with the old standard, safety shoes, the new standard (EN ISO20344: 2004) requires the use of Bennewart machine test soles. The authors prefer the Bata with the test method, which can test the entire sole of the front. Inner bottom is an important part of the sample, the use of similar and Ross chisel cut out the open incision in the nominal deflection online. The soles grip both ends of the roller to promote the end of the deflection sole 90 degrees. However, you can provide 100 times per minute deflection of the machine for the ASTM version of this test.
It's written by GoodLandShoes date 2.23.2012