Gester Instruments | Professional Textile, Footwear and PPE Testing Equipments Manufacturers Since 1997
Analysis of experimental operation steps of zipper fatigue testing machine
1. Instructions for use The luggage zipper reciprocating fatigue testing-equipment' target='_blank'>testing machine can withstand the specified number of reciprocating pulling operations under the action of the lateral and longitudinal tension of the zipper. During the test, the machine drives the slider of the zipper at a constant speed, and operates 30 times per minute. Reciprocating motion, up to a specified number of times. Luggage zipper reciprocating fatigue testing machine technology is designed to perform static and dynamic bi-directional testing of shaft materials, applications include tension compression techniques as well as fatigue testing or high usage rates. The load frame structure is designed for maximum torsional stiffness for the axial/application. 2. Testing Instrument The zipper fatigue testing machine is used to test the fixing strength of buttons and buttons, etc. It is composed of concave clawless pliers, bottom fabric pliers and Imada push-pull force gauge. Button parts are held by concave clawless clamps and garments are held by bottom fabric clamps. By rotating the upper flywheel, the user can apply a fixed force and record the fixed or breaking force. Using clamps and accessories, the instrument can also test other buttons, denim buttons, four-hole buttons and clothing accessories such as zippers, bow ties, appliqués, hooks, D-rings, etc. 3. Meet the standards ASTM D7142-2/F963, CFR 1500, EN 71 PART1, GB 6675, ISO 8124, M&P P115A 4. Technical parameters Reciprocating stroke: 75MM Lateral clamping device width: 25MM Longitudinal clamping device Total weight: 0.28~0.34kg The distance between the two clamping devices: 6.35MM The angle of engagement of the specimen: 60 The angle of the specimen opening: 30 Counter: Electronic 999999 Volume: 28X55X66cm Weight: 35kg 5. Test method Luggage zipper reciprocating fatigue testing machine Standard configuration of rated load frame Four force torque configuration, each unit provides complete facilities, including linear and rotary actuators, servo valves, service flow shape and sensor. 6. Features of the instrument 1. Chrome-plated column---long service life, easy to change the position of the beam. 2. Infinitely adjustable beam---crosshead vertically adjustable infinite resolution. A torque wrench that holds the backlash in the beam position is free to tighten the bolts or hydraulic fail-safe locks. 3. Beam hydraulic control---The positioning of the beam friction with the clamp hydraulic bolt is a standard configuration of all models. A beam motion control panel, using simple controls you unlock, raise or lower and lock the beam. The design ensures that the hydraulic power is suddenly cut off without any harmful beam motion. 4. Extremely Precise Alignment---Concentric circles of actuator and load rod cells within 0.0015' @ 15' and .002in/ft thereafter. 5. Displacement sensor---The actuator has a common axial mount on the piston rod of the LVDT. The spinner is protected by a closed metal cabinet with an external RVDT. This design ensures accurate displacement signals from both the sensor and the control system. 6. Extremely strong construction --- No intermediate threaded joints or compression joints are used and the load is transferred to the beam, directly under test. 7. Simplified maintenance --- The entire load train is included in the base assembly, and simplified maintenance is arranged for convenience. 7. Instrument options 1. Hydraulic beam lock---Hydraulically operated beam lock is available on all models. 2. Vibration isolation mounts---Vibration or dynamic testing can generate unwanted noise and vibrations that can be transmitted to the laboratory floor. Isolation pads under load cells help reduce noise and vibration dampening. 3. Safety Enclosure---A safety enclosure can be installed around the test area to protect the operator during destructive testing. 4. Actuator selection---different displacement and valve actuators are available, as well as power ratings for customers. Service Manifolds, Servo Valves and Hydraulic Power Supplies are selected on the basis of medium size and application. 5. Accessories----Choose from clamps, clamps, extensions, larger power supplies and various power ratings of various sensors. More about zipper fatigue testing machine: http://www.standard-groups.com/OfficeFurniture/
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Ball Burst Method (ASTM D3787): Steel ball penetration for textiles/films using testers like GT-C02-2.
Hydraulic Method (ISO 13938.1): Fluid pressure on rubber diaphragm for industrial fabrics via GT-C12A.
Pneumatic Method (ISO 13938.2): Compressed air for breathable materials tested with GT-C12B.
Results are influenced by raw materials, yarn properties,
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