How Rally Machine Tests Leather Shoes     Rally machine is very simple to test the leather bottom, Rally machine applies to the soles of the shoe with the strength of the test, master the following four steps on it: First, test steps 1. The upper and the shoe sole separated by a utility knife are respectively clamped in the upper and lower fixtures of the device. The clamp should firmly clamp the specimen and it should not slip off. 2. Set the clamp separation speed to 150mm/min ± 20mm/min and start the tensile test. 3. If the material has a tear, use a utility knife to cut the torn material to the bond. Be careful not to cut into the adhesive interface. 4. Record the tension - displacement curve during the entire tension process. Physical map Second, the test results calculation and analysis 1 ) Mark the specified tension strength value on the tension axis of the tension displacement curve and draw a straight line parallel to the displacement axis from there. If the tension - displacement curves are all above the parallel lines, or some are below the parallel lines, but rise above the parallel lines (including parallel lines) within 5mm , calculate the average pulling force of each peak (including crests and troughs) on the curve, Remove the troughs under the equal line when calculating; 2 ) If the tension - displacement curve is more than 5mm continuous below the parallel line, calculate the average tension of each peak (including crests and troughs) on the curve below the parallel line. 3 ) Before the test, cut about 3cm at the base of the toe or heel, clamp the upper and the sole separately with a jig to perform a tensile test, and the tensile machine tests the entire bottom of the shoe or shoe. degree. 4) The specific method is used to help the shoe in the toe portion of a utility knife at the bottom binding slit length of about 3cm, will help end cut length of about 3cm junction of the heel on the other, form a group of test kind. Of all samples, half were cut from the toe and half were cut off from the heel.   The high-precision tension machine manufactured by Haida used in the above tests is equipped with a recorder, and the stretching speed can be set. With a measuring range of 2000N and an accuracy of 0.1N , it is also equipped with a clamp fixture and a utility knife. If you have needs, call us to find out. Article Source: Dongguan Haida International Instrument is not allowed to reprint without permission! (Or: if you need to reprint, indicate the source) Having been in brush making industry for more than twenty years, and on the basis of international most advanced brush making technology and our own patented inventions, Haixing brush machines are stable and reliable and have been well accepted by the markets. Haixing brush machines are used to produce all kinds of brushes. 5 axis CNC brush machines are suitable to produce brushes with complex shapes and can achieve a high production output of quality brushes. Clothes washing brushes, dish wash brushes, toilet brushes, paint brushes, car wash brushes, hair brushes, brooms, disc brushes, roller brushes, etc. can be made by our machines. 5 Axis CNC Brush Machine, 5 Axis Brush Machine, High Speed Brush Machine, High Speed Brush Making Machine Yangzhou Haixing CNC Brush Machine Co., Ltd. , https://www.brushmachine.nl