According to different methods of force, it can be divided into four categories: tensile shearing, compression shearing, torsional shearing and bending shearing. The shear strength of the one-component silica gel is to test the maximum strength of the product, so we must consider the filtration problem when choosing silicone materials. Shear strength definition: The glue joint can withstand the maximum load parallel to the bonding surface per unit area. According to different methods of force, it can be divided into four categories: tensile shearing, compression shearing, torsional shearing and bending shearing.
Commonly used test methods: single lap tensile shear strength test method. The most commonly used one-sided lap joint of aluminum sheet, the standard size of 2mm * 2mm contact area, the thickness of the glue is 2mm. The standard test piece should be no less than 5 pairs. After standing for 168 hours, test with a tensile machine, take the arithmetic mean and observe the damage characteristics of the test piece.
Factors affecting bond strength:
1. The structure, properties and formula of the main material of the adhesive;
Second, the nature and surface treatment of the adherend;
Third, the glue, glue and curing process,
Fourth, the form of the glue joint, geometric size and processing quality;
5. The environment for strength testing such as temperature, pressure, etc.;
6. External force loading speed, direction and mode.
HY-0580 single-component silica shear strength testing machine has a powerful numerical control display system, which can perform tensile, compression, bending, peeling, puncture and other tests in the whole material within 5000N. The displacement and force values ​​can be dynamically displayed on the digital display, connected to the computer to achieve full computer control and print standard test reports; the tensile machine completely changes the disadvantages of the traditional material testing machine, which is cumbersome, complicated in operation and single in performance. The appearance of the tension machine is made of aluminum alloy, which has strong anti-aging properties and does not fade.
One-component silicone shear strength tester parameters Mainspecifications
1, the maximum load Maxcapacity: less than 5000N (optional)
2, load weight precision pull machine LoadAccuracy: 0.01%
3, test accuracy Measuringaccuracy: 4, operation mode Control: full computer control 5, effective width Validwidth: tensile machine 150mm
6, effective stretching space Stroke: 800mm (can be increased as needed)
7, tensile machine test speed Tetxingspeed: 0.001 ~ 500mm / min (any adjustment)
8, speed accuracy SpeedAccuracy: ± 0.5%;
9. Displacement measurement accuracy StrokeAccuracy: within ±0.5%;
10, deformation measurement accuracy DisplacementAccuracy: ± 0.5% or less, safety device Safetydevice: electronic limit protection, pull machine emergency stop button Safeguardstroke
12, machine weight MainUnitWeight: about 85kg
13. Power supply voltage: 220V
14. Host size: 590*355*1640mm
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