2000kn Hydraulic Tensile Testing Machine 1/500000 Resolution ISO6935 Standard

Tensile Testing Machine 2000kN reinforcement of concrete ribbed bars ISO6935 HUT206A-TS
 

The HUT206A microcomputer control electro-hydraulic servo testing machine adopts the double space structure under the oil cylinder, where: the tensile space between the upper beam and the lower beam is used for the tensile test of the sample.Try between Taiwan and the beam is compressed space, which can realize the sample of compression, bending and shear test, and stretch space and compressed space can be through the rotation of the screw, driven beams to automatically adjust to move up and down.

The machine is mainly used for metal material tensile, compression, bending and shear test, equipped with corresponding fixture can be used for other types of sample tensile, compression, bending, shear, bending test, etc.

By electric controller, servo valve, load sensor, displacement sensor, with the computer of extensometer closed-loop servo control system, can accurately control the test process automatically, and automatic measurement test force, displacement and deformation parameters, etc.

The test machine can realize such experiments as rate loading, such as rate loading, etc., etc., etc., which can be controlled by three parts of force, deformation and displacement in one experiment, and smooth transition between each control.

The test parameters can automatically control the test process and automatically calculate the test results through computer acquisition and software processing.The test curve and test results are displayed in real time by microcomputer screen, and the test report and test curve can be printed.

 
Typical specimens:
Fasteners, rebar, chain, welds, castings
 
Test Standard: ISO6935

Scope
This part of ISO 6935 specifies technical requirements for ribbed bars to be used as reinforcement in concrete. This part of ISO 6935 covers ten steel grades not intended for welding which are B300A-R, B300B-R,
B300C-R, B300D-R, B400A-R, B400B-R, B400C-R, B500A-R, B500B-R and B500C-R, and eleven steel grades intended for welding which are B300DWR, B350DWR, B400AWR, B400BWR, B400CWR, B400DWR,
B420DWR, B500AWR, B500BWR, B500CWR and B500DWR. The steel grades are designated with steel names allocated in accordance with ISO/TS 4949.
NOTE The first "B" stands for steel for reinforcing concrete. The next 3 digits represent the specified characteristic value of upper yield strength. The fifth symbol stands for ductility class (4.5). The sixth symbol relates to welding; "-" means not intended for welding and "W" means intended for welding. The last "R" stands for ribbed bar.

This part of ISO 6935 covers products delivered in straight lengths. The production process is at the discretion of the manufacturer. Ribbed bars produced from finished products, such as plates and railway rails, are excluded.

Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 404, Steel and steel products - General technical delivery requirements
ISO/TS 4949, Steel names based on letter symbols
ISO/TR 9769, Steel and iron - Review of available methods of analysis
ISO 10144, Certification scheme for steel bars and wires for the reinforcement of concrete structures
ISO 14284, Steel and iron - Sampling and preparation of samples for the determination of chemical composition
ISO 15630-1, Steel for the reinforcement and prestressing of concrete - Test methods - Part 1: Reinforcing ars, wire rod and wire

Bending properties
If required by the purchaser, the bend test shall be performed in accordance with 9.2. After testing, the bars hall show neither rupture nor cracks visible to a person of normal or corrected vision.

Rebending properties after ageing

Regarding fifteen steel grades of B400A-R, B400B-R, B400C-R, B400AWR, B400BWR, B400CWR,B400DWR, B420DWR, B500A-R, B500B-R, B500C-R, B500AWR, B500BWR, B500CWR and B500DWR, if required, the rebend test shall be performed in accordance with 9.3.
NOTE The rebend test is used to verify the ageing properties of the bent bars. After testing, the bars shall show neither rupture nor cracks visible to a person of normal or corrected vision.

Tensile test
The tensile test shall be carried out in accordance with ISO 15630-1.
For the determination of percenbtage elongation after fracture, A5, the original gauge length shall be 5 times the nominal diameter.
For the determination of percentage total elongation at maximum force, Agt, equidistant marks shall be made on the free length of the test piece. The distance between the marks shall be 20 mm, 10 mm or 5 mm,
depending on the bar diameter.
For determination of tensile properties, the nominal cross-sectional area of the bar shall be used.

Bend test
The bend test shall be carried out in accordance with ISO 15630-1. The test piece shall be bent to an angle between 160° and 180° over a mandrel of the diameter

Rebend test
The rebend test shall be carried out in accordance with ISO 15630-1. The test piece shall be bent over a mandrel of the diameter specified in Table 8.
The angle of bend before heating (ageing) shall be at least 90°, and the angle of rebend shall be at least 20°. Both angles shall be measured before unloading.
 

New features:

Software introduction

(1) modular design: TestPilot_HUT adopts modular design to divide software into several modules, which can be easily upgraded and subdivided.

(2) diversified upgrade method: the upgrade method of TestPilot_HUT includes: download and upgrade package online;Customer service;Mailing CD;Customers upgrade themselves.

(3) open programming: TestPilot_HUT adopts open programming, and customers can design software according to their own needs.

(4) test plan: the user can through the wizard for each test easily personalized design, test before the user is simply select the applicable test plan, test control parameters, method of data processing and printing projects have been set to complete as required.

(5) the test report can be programmed: the user can set the header footer, select the curve type and print the output item before the report output.

(6) on-line setting: can configure 8 load sensors or 8 extensimeter. In the same program, the user will only need to select the current sensor and extension meter before the test.

(7) measurement display window: displacement, extension and large deformation independently display and float, and users can set up display Windows according to their own needs, and change positions.

(17) unit conversion: internal integration (load: N, KGF and lb;Deformation: mm and in), the user can be switched at any time during the test.And can add new unit conversion mechanism according to user's need.

(18) graphical function: users can choose any curve to compare.And provide any size printout function.The curve enlarges function, the user can achieve the translation of the amplification curve by dragging the mouse in the area.The curve printing function enables the user to print all the visible curves in any size and position.The software can display three curves simultaneously, which can automatically calculate feature points and display feature points.

(19) automatic and intelligent: no selection of files, no preset maximum stress, maximum coordinates, automatic switching of coordinate system, always see the complete curve.

(20) print preview: print preview function, like OFFICE software, makes you feel more relaxed.

(21) multi-combination query data function: the user can query the data of the previous experiments through multi-condition combination, which can greatly facilitate the comparison between the data and the query of historical data.

(22) fine-tuning of the test results: users can customize some key parameters to fine-tune the test results, such as the corresponding elastic modulus of data from the starting point of the self-defined elastic segment.

(23) data statistics function: users can select the corresponding data statistics items according to their own requirements.

(24) data output: the test data can be exported to Excel to facilitate user analysis of test data.

(25) multi-step test control scheme: the test scheme can be set according to the user's different test requirements.

(26) automatic switching control mode: in the case of stress rate control, the control mode of the displacement rate can be automatically changed according to the test of the material.

(27) curve analysis: the software can automatically mark the feature points on the curve, and users can use the mouse to enlarge, move, traverse, modify the feature point operation, curve print, etc.

Specifications: