Pipe flaw detection (1972)

Rolling mill.

Transportation of rolled pipes.

Demonstration of defects in pipes resulting from violations of production technology, wear or damage to the tool, poor-quality metal blanks, etc.

Inspection of pipes in production to determine defects.

Samples of detected defects.

Methods for detecting defects.

Visual methods.

Hydrotesting on presses.

Laboratory methods for examining pipe samples.

A cartoon explaining which defects cannot be determined by visual and laboratory methods.

Non-destructive testing methods.

Ultrasonic method.

Magnetic method.

Electro-inductive.

A cartoon explaining the principles of the ultrasonic method of pipe testing.

Schematic diagram of an ultrasonic device.

Device configuration.

Pipes are fed along a helical line.

A cartoon explaining the testing process.

A worker tests a pipe on an ultrasonic device.

Ultrasonic flaw detection uses a number of methods that differ from each other in their operating principle, the nature of the measured values, and the location of the emitters.

A cartoon explaining the operation of an ultrasonic flaw detector that operates using the sound shadow method.

The pulse-reflective method is used in flaw detectors for testing welded and seamless pipes.

This method uses a separate-combined head, where the emitter and receiver are combined in one block.

Cartoon explaining the work using this method.

Cartoon explaining the work of the resonance method.

Flaw detection with manual scanning.

Immersion method, where the pipe moves through a bath with liquid, in which the flaw detector sensor is installed.

Devices designed for flaw detection of seamless pipes made of all steel grades with a diameter of 10 to 120 mm.

Cartoon showing the defects that they can detect.

The device is adjusted using a reference sample.

When the pipe moves through the device's sensor, the presence of defects is recorded on the oscilloscope screen, and the defective section is marked.

Continuity of control is ensured by joining the pipes in front of the bath.

Magnetic method of pipe testing.

Cartoon explaining the principle of operation of the magnetic method.

The magnetic method is suitable only for pipes made of ferromagnetic steel grades and is used to detect defects in the outer and inner surfaces of pipes and to control the structure of the metal.

A defectologist at the control panel of the device.

To detect differently oriented defects, two main methods of magnetizing the pipes being tested are used.

Cartoon explaining these two methods, longitudinal and circular.

A magnetic method with a ferroprobe sensor is demonstrated.

Cartoon explaining the design of the ferroprobe sensor.

Cartoon explaining the operation of the device as a whole.

Passage of pipes through the equipment of a magnetic flaw detector with a ferroprobe sensor.

A ferroprobe device with quarceptimeter sensors is used to control the density of the metal structure.

They magnetize and then completely demagnetize the controlled area.

Cartoon explaining the operation of the ferroprobe device.

Electro-inductive method of pipe testing.

Cartoon explaining the diagram of an electro-inductive flaw detector and its operation.

An electro-inductive flaw detector is demonstrated.

Samples of defects.

Flaw detectors of this class can detect such defects as partial lack of fusion of a pipe, which may not be detected during hydrotesting.

In the production of seamless pipes, devices of this class are used to control the wall thickness and determine the steel grade for small-diameter pipes with a small wall thickness.

Pipes passing through a flaw detector.

Automatic flow line for comprehensive quality and size control of pipes.

Close-up, the line operator monitors the passage of pipes.

Helicopters landing on an airfield site.

Nuclear power plant.

Heat pipes.

Rocket on the launch pad.

Rocket launch.

Casing strings of drill pipes.

Pipes being transported to the workshop after inspection.

Packing pipes before being sent to the consumer.