Hualong Computer Control Electronic Steel Strand Tensile Stress Relaxation Universal Testing Machine

• Customization: Available
• After-sales Service: Online Technical Support
• Warranty: 1 Year
• Model NO.: WSC
• Mass Scope of Workpiece: 1000kg
• Type: Strength Testing Machine
• Maxcapacity: <1000KN
• Accuracy Grade: 1
• Load Way: Electronic Load
• Loading Method: Static Load
• Display: Computer
• Control: Computer Control
• Weight: 1000-2000Kg
• Power Source: AC380V
• Oil Cylinder Position: Under
• Application: Stress-Relaxation Test
• Material: Pre-Stressed Concrete Strand, Pre-Stressed Concret
• Usage: Steel Industry, Laboratory, University, Institutio
• Available Capacity: 200/300/400/500/600kN
• Transport Package: Wooden Case
• Specification: 300/400/500/600KN
• Trademark: Hualong
• Origin: China

Product Description

Hualong Computer Control Electronic Steel Strand Tensile Stress Relaxation Universal Testing Machine

Product Description

Introduction
HUALONG WSC Series is used to determine stress-relaxation of metal, such as pre-stressed concrete strand, pre-stressed concrete bar, steel rope 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.

Standard
EN10391:2003 stress relaxation test method of metal and ASTM E328- 02(2008) Standard Test Methods for Stress Relaxation Tests for Materials and Structures

Features
1. Automatic draw the real time curve of residual stress versus time, temperature versus time and relaxation rate versus time.
2. Automatic calculate 1000 hours stress relaxation rate of the specimen. The calculation method has double logarithm option and single logarithm option and calculating data has entire data option and data at certain time option.
3. High precision temperature recorder attached to record the influence ofroom temperature variations in the force curve.
4. Servo-controlled drive system ensures the high precision load/displacement close-loop control, besides, it has a very low noise during the whole test.
5. Loading speed could be set arbitrarily.
6. Constant load and constant displacement control could beselected.
7. Automatically calculate stress relaxation properties of the specimen and print complete test diagram.

Product Parameters

Model		WSC-200	WSC-300	WSC-400	WSC-500
Load Capacity	kN	200	300	400	500
Measuring Range	kN	8-200	12-300	16-400	20-500
Load Resolution	N	7	10	12	15
Load Accuracy	%	±1%
Creep of load cell	%	30 minutes<=0.02%
Position Accuracy	%	±0.5%
Horizontal Span	mm	1850
Ball Screw Stroke	mm	100
Loading Speed	N/S	100-5000
Temperature Accuracy	ª	Temperature sensor resolution:0.1 ª Temperature sensor accuracy:±0.3 ª
Specimen Dimensions
PC Strand	mm	Φ12.7~Φ15.24	Φ12.7~Φ15.24	Φ12.7~Φ15.24	Φ15.2~Φ21.8
PC wire	mm	Φ3~Φ9	Φ3~Φ9	Φ3~Φ9	Φ3~Φ9
PC Bar	mm	Φ7~Φ18	Φ7~Φ18	Φ7~Φ18	Φ7~Φ18

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