WAW microcomputer control electric-hydraulic servo universal testing machine adopts electronic measuring technology,used tensile

WAW microcomputer control electric-hydraulic servo universal testing machine

Load frame

       The load frame consists of pedestal, oil cylinder, piston, wheel sensor, lifter motor, reducer, sprocket wheel, the screw-bar, worktable, upright columns, the upper and lower beams, hydraulic automatic clamp.Four upright columns link the upper beam and the worktable. The lower beam is moved up and down to adjust the testing space.

Measurement system

   WAW microcomputer control electric-hydraulic servo universal testing machine adopts electronic measuring technology. There are characteristics of high accuracy, flexible collocation, strong interchangeability, easy to service and so on.

1. The force-measuring unit

Consists of high precision and high stability wheel load sensor and low-noise low-drift amp and 14 fast high-precision A/D converter, to ensure that the measurement of the whole range of the indication accuracy better than ± 1%.

2. Deformation and displacement measurement units

The measurement of small deformation (the rate of elongation is less than 50 %) adopts electronic extensometer and A/D converter circuit. the precision being ± 0.5%. For special requests, it can calibrate and identify several electronic extensometers.

The piston’s displacement is measured by displacement sensor.

Microcomputer printer and electronic components

1. PC: Lenovo brand computer, 17-inch LCD screen; 2. Printers: HP (A4 color inkjet printer); 3. All electronic components adopt international quality brands;

Sensor

1. Load sensor: wheel sensor of USA; 2. Electronic extensometer: the mark distance 50 mm. deformation 25 mm of Beijing Steel Institute; 3. Digital displacement Sensor: Omron of Japan;

Hydraulic source:1. Hydraulic station: electro-hydraulic servo control of oil sources; 2. Servo valve: Italy ATOS Servo Valve; 3. Hydraulic pumps: Italy hydraulic pumps; 4. Oil seal: a dual seal sealed, effectively preventing oil leaking;

Accessories:

1. Round sample clamping: two sets 2. Flat clamping: one set 3. Compression clamp: one set 4. Bending fixture: one set 5. Cutting clamp: one set 6. Clamping protection board (host) :one set

Primary Technical Parameters

Model		WAW-100	WAW-300	WAW-600	WAW-1000	WAW-2000
Maximum test force		100KN	300KN	600KN	1000KN	2000KN
Host structure type		Two-Post Type		Four-Post Type
Power Indication accuracy		Better than ±1%
Load resolution (KN)		1 / 300000 of full range
Effective force measurement range (KN)		Maximum test force of 2% to 100%
Deformation accuracy		Better than ± 0.5%
Deformation Resolution (μm)		2um
Displacement indication Accuracy		Better than ± 1%
Stress control speed (mpa/s)		1~45
Strain control speed (mm / s)		0.001~0.5
Displacement control speed (mm / s)		0.02~3
Testing space	Stretching space (mm)	600	600	600	650	800
	Compression space (mm)	550	550	550	580	700
	Effective width (mm)	460	460	500	520	780
	Cylinder stroke (mm)	200	200	250	250	250
Host Size	hydro-cylinder underneath type (Double space)	720*580*1770	720*580*1770	800*620*2050	860*660*2170	1100*980*2450
Round sample size (mm)		Φ5~Φ20	Φ5~Φ18	Φ6~Φ26	Φ10~Φ36	Φ20~Φ80
Flat sample size (thickness × width mm)		0~15*75	0~15*75	0~30*80	0~40*110	10~60*120
Total power (KW)		2.1	2.1	2.3	2.3	3.5
Weight (kg)		1500	1500	2500	3100	5000

Function and characteristics:

1. Automatic control: measurement, data acquisition & processing, drawing and printing test curve (which parts can be zoomed in or out) and test reports; 2. Monitoring system: being calibrated and turned to zero automatically; 3. Testing force: deformation and displacement are controlled by speed, and the controlling error is less than ± 1% of settings; 4. Stepless speed regulation: control speed and control way can be converted randomly in the testing and also can be kept; 5. Data storage and amplification of curve: In testing it can be arbitrary show different test curve; 6.In programe process: it can be converted to manual control, adjust manually and control speed at any moment.7. Automatic protection if testing force overloading: the scope of protection can be arbitrary set, such as it can be set to 5% or 10% of the max testing force; 8. It can be conducted on network between testing labs and convenient for management.

The advantages of equipment:1. The load frame adopts the structure of the oil cylinder at the bottom and the barycenter is low, so that the whole structure is compactness and stability; 2. The upper beam and worktable are linked by the four upright columns, so the worktable move smoothly. Also the whole structure is compactness and stability; 3. Adopt the USA wheel load-sensors of high precision. Stable functions avoid the value of zero drift caused by the use of hydraulic sensors adopted by other manufacturers and the influence of measurement results caused by friction between the oil cylinder and piston.4. Italy imports oil pump unit, low noise and oil circuit is stability and no concussion; 5. Hydraulic seals adopt double-sealed structure, effectively preventing oil leaking; 6. Collocate the protective board, effectively preventing the clamping splint being scratched;

electric-hydraulic servo universal testing machine WAW microcomputer control electric-hydraulic servo universal testing machine