Supply of portable digital TYPE-A Shore durometer hardness of rubber

Product Description Shore Hardness, also known as rubber hardness was divided into several Shore hardness and Shore hardness meter reading, please call 13698986822 Xiong Yi 1. Features A model for general rubber, synthetic rubber, soft rubber, polyol resin, leather, wax C is suitable for rubber and used in plastics containing microporous materials made of D-type foaming agent for general hard rubber, resin, acrylic, glass, thermoplastic rubber, printing plates, fiber and so on. Standard DIN53505, ASTMD2240, JISR7215 2. Overview Shore hardness of rubber is to measure the hardness of vulcanized rubber and plastic products, the instrument, which has A-type, D-type, C-type three forms A and D, respectively, for low hardness and testing of high hardness of the material. C is suitable for compression of 50%, the stress 0.049MPa or more, and with the use of rubber, plastics containing a foaming agent made shoe microporous material hardness testing. The hardness execution GB / T531-99, GB2411-80, HG / T2489-93, JJG304-2003 relevant provisions. 3. The main parameter value dial: 0-100-degree pressure needle stroke: 0-2.5mm pressure pin end of the pressure: A / C type 0.55N-8.06N, D-type 0-44.5N 4. The sample is placed in use 1S within the firm when the plane, hold the hardness, indenter sample of at least 12mm from the edge of the pressure steady foot pressure on the sample, so that the vertical pressure needle pressed into the sample until it is sufficient contact pressure and sample readings. Apart at different locations of the hardness value of at least 6mm in measuring point 5 times the mean value (microporous material measuring point distance of at least 15mm). Stable test conditions, improve test accuracy, it should durometer means supporting the production of the same type of measurement frame determination. 5. Precautions should be checked before using the hardness pointer in the free state should show zero (if not zero is displayed, use the Clear key ZERO clear). When the hardness of pressure in the glass should appear 100 degrees (presser foot end face tight contact with the press and on the glass surface). When such does not indicate 0 and 100 degrees, you can press the pressure needle slightly several times, such as when still show 0 and 100 degrees, you can not use. Such as when using a fixed load frame, you can press the lever with the hardness under the weight of gravity, hardness test bench press foot and full contact, then the value shall be 100 ± 1 ° display, you can use two test audience an adjustable hand wheel trim, if you still can not transfer 100 ± 1 degree, the same may not use, do send the factory adjustment is appropriate. D durometer hand pressed against the glass cargo load measuring device at a given frame zero adjustment must be hard to place a single step in a special gauge block hardness test when zero pressure, otherwise, indenter will be a pressure drop glass , and it is difficult to accurately indication. Rubber samples should be GB / T631-99 prepared rubber sample preparation requirements, shall be required to GB2411-80 preparation, samples should be required rubber microporous material in plastic sample GB2489-93 possible Before the determination shall be in accordance GB0T2941 / GB / T2918 standard at laboratory temperature measured after adjustment. When the sample with a Type A durometer measured value exceeds 90 degrees, it recommended D durometer, when D-type hardness measurement is below 20 degrees, it is recommended to use a type A durometer. It is not accurate when the A hardness durometer value of less than 10 degrees, the measurement results can not be used. Hardness after use should be wiped into the instrument box, place a dry place to prevent moisture.