The film introduces interested enterprises to new developments by Soviet scientists in the field of quality control methods for metal products using ultrasound.
The furnace dampers are opened.
The heated workpiece is removed from the furnace.
Sheet metal rolling line.
Alternating frames with quality control of manufactured machine parts.
In power engineering, responsibility for the quality of manufactured machines is especially great, since the equipment operates in severe operating conditions, including background radiation, high pressures and high thermal loads.
Checking turbine blades.
Carrying out ultrasonic electroscopy.
Alternating frames with metal defects that were detected by this method.
The quality control service checks the quality of metal plates.
To check the parts, the surface must be processed to a sufficient degree of purity.
Machines for cleaning flat plates and round parts.
Cleaning shells.
The ultrasonic testing procedure consists of a number of operations.
To create acoustic contact, the sounding zone is covered with liquid.
Only then does the operator begin scanning.
The operator moves the converter along a complex trajectory, performs many auxiliary operations.
The operator continuously monitors the flaw detector screen, performs logical operations to process the received information and assess the weld quality.
Such intensive work leads to rapid operator fatigue and the possibility of missing defects.
The main quality of control is subjective, since it does not leave documentary evidence of the detected defect.
Close-up, a female operator conducts an ultrasound test.
The developer assembles the control device.
An effective ultrasonic flaw detection equipment has been developed at the Central Research Institute of Mechanical Engineering Technology.
Assembly of the equipment in the laboratory of the Research Institute.
Before sounding, the operator scales and sets the parameters of the signals received from the reference reflector on the digital display of the flaw detector.
During testing, the signal parameters are automatically measured and the information is displayed in digital form.
The process of comparing the echo signal with the reference is significantly simplified, since the digital display of the device displays all the necessary information about the defect.
The operator checks the quality of the metal walls inside the volumetric part.
Scientists discuss the printout with the data of the conducted check.
Visual display of the check, printed by the computer.
A stationary ultrasonic quality control unit built at the institute for the Chelyabinsk Metallurgical Plant.
This unit will automate testing using ultrasonic sounding of large cylindrical forgings and castings.
Developed by the Bauman Moscow Higher Technical School.
This unit solves the problem of automating the testing of large-diameter pipe seams.
Special process charts developed at plants are used to improve the efficiency of ultrasonic testing.
Using process charts at the workplace allows optimizing testing modes.
A flaw detector operator studies such a process chart.
Training of ultrasonic flaw detection specialists.
Classes at the Izhora Association.
Rolling mill.
Automatic ultrasonic testing line for slabs at the Izhora Plant.
The slab moves under a crossbeam with 288 sensors mounted on it.
Ultrasonic signal receivers are mounted symmetrically under the lower surface of the sheet.
Writing devices write the topography of the defects.
Metal parts, Defectoscopy, Ultrasound
Moscow Leningrad Chelyabinsk
Central Research Institute of Mechanical Engineering Technology. Chelyabinsk Metallurgical Plant. Moscow Higher Technical School named after Bauman. Izhora Metallurgical Plant.
The operator receives a record of the quality of each slab.
Another type of installation.
It records an echo signal, not a shadow.
And instead of many fixed sensors, it uses one moving along a crossbar.
The signal recording is demonstrated.
Scientists have developed equipment for recognizing the type of defect.
A cartoon showing how such equipment can be used to obtain information about a defect.
Another method.
A cartoon showing how this method can be used to obtain information about a defect.
Echo-mirror testing.
The essence of the method lies in the simultaneous sounding of a seam with two transducers synchronously moving relative to the axis of symmetry.
This method was first used in an installation for sounding shells at Atommash.
The stand was designed and placed in the process flow of steam generator production.
A semi-automatic manipulator with an acoustic unit of the Cyclops equipment is installed on a retractable platform.
Four inclined transducers have different input angles.
Two of them are connected in a tandem system.
Electronic equipment.
The operator observes the inspection.
All information about the defect is recorded on a facsimile defectogram and simultaneously in a digital code.
The stand allows for high-performance, reliable testing of annular and longitudinal welds of the base metal and anti-corrosion surfacing.
Operator at the display panel.
Ultrasonic spectrography.
The spectral method is based on the study of echo signals reflected from the defect with varying probing pulse.
Cartoon explaining the method.
Cartoon explaining the diffraction method.
Alternating frames from a film.
Transportation of a turbine wheel.
Echo signal, Defect, Quality, Control, Spectrography, Diffraction
Moscow Leningrad Volgodonsk
Atommash Association.