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Help CenterWJSC-300A Stress Relaxation Testing Machine
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Specifications
The equipment is used to determine stress-relaxation of metal, such as stranded wire, PC steel bar, steel bar and so on.,1. Introduction
The equipment is used to determine stress-relaxation of metal, such as stranded wire, PC steel bar, steel bar and so on., the specimen is deformed a given amount and decrease in stress is recorded over prolonged period of exposure at constant elevated temperature. The equipment is meeting to GB/T5224-2003 steel strand for prestressed concrete NEQ ISO6934-4:1991
and GB/T10120-1996(metallic materials-stress relaxation test, NEQ ASTM E328-86)
2. Main Technical Parameter
Max force: 300KN
Measuring range of force: 6-300KN, stepless
Creep of load sensor:: ≤0.02% (within 30min)
Accuracy of indicating force: ≤±1%
Resolution of indicating force: 0.05%/FS
Resolution of 0.001mm
Specimen size (nominal diameter):Φ9.50;Φ11.10;Φ12.70;Φ15.20mm
Tensile vertical stroke: 0-200mm
Tensile vertical space: 800-1000mm
Overloading protection: Auto stop at overloading 2%-5% of full scale
Structure: vertical type framework.
Power:3 phase, 380V, 50Hz, 3.0KW
Dimension (LxWxH):900x710x3000mm
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