HD-604B-S digital tensile testing machine, Fujian, Fuzhou, digital tensile testing machine manufacturers, Xiamen digital tensile testing machine price details: 
 Introduction to digital tensile testing machine 

 Capacity to provide two sets of test space, allows the operator to have a greater scope of use, especially of raw materials and finished product testing is most applicable when the power gap. Type used on the landing pattern, mainly in the steel wire, small screws like most fabrics, etc. use the maximum test force of 50KN, long stroke and has two test space, the capacity can be installed two different sensors, the use of force in very different test occasions, such as in the spring industry, the steel wire industry, rubber and plastics industries analysis of the material tested. 

 Digital tensile testing machine design standards: GB/T16491, GB/T1040, GB/T1041, GB/T8804.1-2, GB/T8808, GB13022 


 Digital tensile testing machine main technical parameters: 
 Capacity: 50,100,200,500 kg, 1T, 2T (optional) 
 Load Resolution: 1 / 100, 000 (capacity ≤ 1T time: 1 / 250, 000) 
 Load precision: ≤ 0.5% (volume ≤ 1T time: ≤ 0.25%) 
 Stroke: 1000mm (excluding fixtures) 
 Test speed: 30 ~ 300mm/min 
 Display device: PC display (display and print the number of tests, test value, maximum value, the value of fracture, etc.) 
 Dimensions: (L × W × H) 985 × 510 × 1600mm 
 Weight: 150kg 
 Power: 1 ∮, 220V/50Hz 
 Distribution: pull a fixture 
 Motor: Servo Motor 


 Digital tensile testing machine testing and calibration methods 

 1 tensile testing machine (tensile machine) strength value correction: open access to a computer program after calibration screen, press the test started, take a standard weight of weight hanging on the light fixture on the connection block, the computer records show of force values, and calculate and Standard weight weight difference, the error should not exceed ± 1%. 

 (2) tensile testing machine (tensile machine) speed correction: 

 2.1 First, the cross arm of the machine records the initial position, the control panel, select the speed value (measured using a standard steel ruler straight cross arm stroke). 

 2.2 starter units at the same time the beginning of electronic stopwatch timer for one minute, stopwatch time of arrival of the machine while pressing the stop button, according to the stopwatch time, record the value of cross arm stroke rate of 1.00 per minute (mm / min), observe the cross arm trip the difference between value and straight steel ruler, and calculate the error of cross arm stroke, should not exceed ± 1%. 


 Digital extensometer tensile testing machine 

 Extensometers are feeling the specimen deformation sensors, strain gauge-type extensometer because the principle is simple, easy to install, is now a widely used type. Object by measuring extensometer can be divided into axial extensometers, horizontal extensometers, clip-on extensometer. 

 Radial extensometer: standard specimen for the detection of radial shrinkage, it is used to measure axial extensometer with Poisson's ratio μ, which radial deformation (or horizontal deformation in one direction) transform into electricity, then through the secondary instrument measuring, recording or control another device. 

 Clip-on extensometer: for the detection of crack opening displacement. Clip-on extensometer is fracture mechanics experiments, one of the most commonly used instrument, it is more used in the determination of fracture toughness experiments. ? High accuracy, easy installation, simple operation. When the specimen breaks automatic extensometer from the specimen can be, for static and dynamic deformation measurement. 

 Axial Extensometer: for a variety of metal materials and non-metallic materials, one of the deformation measuring instruments. 


 Digital extensometer tensile testing machine structure and working principle: 

 Strain gauge, transfer bar deformation, elastic components, limit gauge rod, blade and clamping spring. Measuring deformation, the extensometer on the specimen mounted on the card, the blade contact with the specimen inside the feelings of two blade pitch elongation, deformation by the elastic components to rod strain, strain it into a film resistance variation, then appropriate measuring amplifier into a voltage signal. 

 Extensometer specification: distance - distance between two initial incision 

 Range - the maximum elongation 

 WDW-100 extensometer: gauge = 50mm, range = 10mm (20%) 

 CSS-2210 Extensometer: gauge = 50mm, range = 5mm (10%) 

 Use of extensometer 

 1, for the extensometer, the first card into the gauge to the limit between the rod and rod deformation pass; for CSS2210 with extensometers, first positioning pins into the hole; 

 2, with two fingers grip the upper and lower ends of the extensometer, the midpoint of the upper and lower edge contact with the specimen (specimen measurement site), with a spring card or rubber band up and down, respectively, of the extensometer fixed to the specimen edge; 

 3, for the extensometer: Remove the gauge card; for CSS2210 with extensometers: Remove the locating pin; (remember: before the experiment must be checked to avoid damage to the extensometer) 

 4, the test control software interface 〖〗 selection of experimental conditions, the deformation measurement for WDW100 choice: extensometer; choice for CSS-2210 is the load curve tracking mode - deformation curve; 

 5, the extensometer signal shows zero; 

 6 according to the size of the deformation measurement file selection amplifier attenuation. 

 CSS-2210 before and after installation of the extensometer 


 Digital tensile testing machine according to the test force divided into: 

 5KG.100KG.500KG, 1T 2T .3 T, 5T.10 tons, 20 tons, 30 tons, universal testing machine 

 Selected as the general strength of the rubber manufacturers 1T below, metal manufacturers choose 10T. Copper tubes larger force