Ther­mo­graphy in Plastics Industry

Wide application range of thermal imaging in plastics industry

  • Thermography allows specific tempering of injection moulds and deep-drawing

  • Thin plastic films are highly transparent and require special filters for their measurements

Review of the cooling profile of a plastic moulding
Thermal image of a plastic cover

Thermal Optim­isa­tion of Moulds

Temperature distribution of plastics in injection moulds and for deep-drawing is a critical aspect for the quality of manufactured moulded bodies. Contacting measurements are just as much extensive as the application of pyrometers. In contrast to that, infrared camera systems offer the advantage to provide a complete picture of moulds or moulded bodies’ temperature distribution. However, moulds consist of metal and, therefore, reflect background radiation.

A thermographic analysis is carried out much easily when measuring the moulded body itself. Attention should be paid to the fact that temperature measurement is ensued immediately after opening the mould and before the moulded form has been put out, so that this new product has hardly cooled down. Thus, the temperature of the mould can be indicative of the moulded result’s temperature.

The high frame rate (of up to 60 Hz) of InfraTec’s camera series VarioCAM® high definition ensures a precise thermal image acquisition at the exact point in time. Moreover, due to the integration of stationary infrared camera systems, such as VarioCAM® HD head, into production processes, it is possible to regulate the mould’s temperature in case of temperature deviations.

Test of a synthetic roller

Case Studies about Ther­mo­graphy in Plastics Industry

Spectral infrared thermal imaging to monitor the film production

Meas­ure­ment of Plastic Films by Means of Filtering

Temperature represents an important quality aspect in the manufacturing process of thin plastic films. This measurement can be carried out without any contact by applying infrared camera. Nevertheless, attention should be paid to the high transparency of the plastic films. A solution for this problem is provided by InfraTec’s special infrared camera systems of the camera series ImageIR® which can be equipped with spectral filters and, therefore, are able to filter background radiation out. These infrared camera systems also feature high frame rates of more than 10 KHz, especially for the acquisition of fast extrusion processes accurate in every detail.

Advantages of the Thermography Solution in This Application

Thermografie-Kameraserie ImageIR® mit neuer 10 GigE-Schnittstelle

10 GigE Inter­face for a Strong Increase in Output

The 10 Gigabit Ethernet interface of the high-end camera series ImageIR® opens this extremely fast transmission standard with a NIC specially developed by InfraTec. This works with optical or electrical transceiver modules that are easy to change and are called SFP+.

InfraTec glossary - ImageIR® mobile wireless camera remote control

Mobile Wire­less Camera Remote Control

Stationary camera systems are usually used PC-controlled. Alternatively, InfraTec offers a solution that makes the operation of the camera system even more versatile. An additional tablet PC is attached to the camera housing, which enables wireless control of all camera functions. The display solution allows access to all functions of the IRBIS® online control and acquisition software, delivered together with the camera.

InfraTec glossary - Rotating filter- und aperture wheel

Separate Filter & Aper­ture Wheel – Spec­tral Ther­mo­graphy

The combination of a separate filter and aperture wheel, allowing a total of 35 freely selectable combinations, is prerequisite for a universal application in measurement tasks with high object temperatures and in the field of spectral thermography. The neutral density filters used for signal attenuation or the combination of spectral filters and apertures reliably prevent interference effects.

Thermografie-Kameraserie ImageIR® mit neuer 10 GigE-Schnittstelle

10 GigE Inter­face for a Strong Increase in Output

The 10 Gigabit Ethernet interface of the high-end camera series ImageIR® opens this extremely fast transmission standard with a NIC specially developed by InfraTec. This works with optical or electrical transceiver modules that are easy to change and are called SFP+.

InfraTec glossary - ImageIR® mobile wireless camera remote control

Mobile Wire­less Camera Remote Control

Stationary camera systems are usually used PC-controlled. Alternatively, InfraTec offers a solution that makes the operation of the camera system even more versatile. An additional tablet PC is attached to the camera housing, which enables wireless control of all camera functions. The display solution allows access to all functions of the IRBIS® online control and acquisition software, delivered together with the camera.

InfraTec glossary - Rotating filter- und aperture wheel

Separate Filter & Aper­ture Wheel – Spec­tral Ther­mo­graphy

The combination of a separate filter and aperture wheel, allowing a total of 35 freely selectable combinations, is prerequisite for a universal application in measurement tasks with high object temperatures and in the field of spectral thermography. The neutral density filters used for signal attenuation or the combination of spectral filters and apertures reliably prevent interference effects.

ImageIR filter wheel replacement

Multispectral Feature

The multispectral feature makes it possible to record sequences with constantly changing spectral filters. Images are recorded synchronously with a rapidly rotating filter wheel equipped with the filters. It may be possible to switch between up to seven filters, depending on the version. Due to this the multispectral measurement can be optimised to suit the measuring task if the preset ranges are unsuitable. The integration times can be adapted within the limits calibrated for this filter.

HighSense for thermographic camera series ImageIR®

High­Sense – Always the Optimal Camera Setting

Thanks to HighSense, ImageIR® users have the option of setting up individual measuring ranges based on the factory calibration that best suit the respective task. Depending on the measuring task, the required temperature range can be selected and the optimum integration time for this purpose is calculated – or one decides to proceed in reverse order. Thus, the calibration can be retained even in the case of changed integration times.

InfraTec Service Calibration Rig

Auto Calibration

The Auto Calibration option expands the HighSense function to include automatic, dynamic adaptation of the integration time. This ensures the utmost temperature measuring accuracy and an optimised signal-to-noise ratio throughout the process. The wellfill of a detector is usually optimal in certain areas of the dynamic range. If the measured object signal is outside theses or user-specified limits, the integration time is readjusted.

InfraTec thermography - Feature EverSharp

Ever­Sharp Func­tion

With the innovative EverSharp function all objects of the image scene are displayed sharply, not depending on camera distance or lens. With the help of special algorithms thermal images with different focus positions are combined automatically, so that only the sharp object structures are displayed in the resulting thermal image. Thus, thermal images turn out very impressive as all objects are displayed in superb image quality.

Contact to thermography division of InfraTec

Would You Like to Know More?

It is not unusual for tasks to be associated with special requirements. Discuss your specific application needs with our specialists, receive further technical information or learn more about our additional services.

United Kingdom & Irland
InfraTec GmbH Infrarotsensorik und MesstechnikGostritzer Straße 61 - 6301217 DresdenGERMANY

Asso­ci­ated Ther­mo­graphic Auto­ma­tion Solu­tions

Automation InfraTec INDU-SCAN - In-process industrial temperature measurement
Indus­trial Auto­ma­tion

Process Control – INDU-SCAN

Contactless measurement of temperature distributions and profiles with industrial thermographic cameras permits efficient monitoring and control of temperature-dependent processes and procedures within a system-integrated quality assurance programme in industry.

Quality control for more precision in press hardening PRESS-CHECK
Indus­trial Auto­ma­tion

Quality Control or Press Hardening – PRESS-CHECK

Check the microstructures of sheet metal parts during the stamping process and establish a uniform high strength and quality of all produced stampings safely and with a contact-free method.

WELD-CHECK by InfraTec
Non-destructive Testing

Welding Inspec­tion – WELD-CHECK

Using pulse thermography, WELD-CHECK enables you a quantitative assessment of the inspected welds.

E-Lit Cabinet from InfraTec for Infrared Thermography
Non-destructive Testing

Electronic / Semiconductor Testing – E-LIT

Detect inhomogeneous temperature distribution and local power loss during the production using the Lock-in Thermography.

Quality Assurance for Coating Processes | InfraTec / Picture Credits: © iStock.com / Greppe
Indus­trial Auto­ma­tion

Quality Assurance for the Coating of different Materials | InfraTec

Infrared cameras allow the non-destructive and process-synchronous monitoring of coating processes to ensure that the coatings are free of defects as soon as they are applied.

Automation InfraTec INDU-SCAN - In-process industrial temperature measurement
Indus­trial Auto­ma­tion

Process Control – INDU-SCAN

Contactless measurement of temperature distributions and profiles with industrial thermographic cameras permits efficient monitoring and control of temperature-dependent processes and procedures within a system-integrated quality assurance programme in industry.

Quality control for more precision in press hardening PRESS-CHECK
Indus­trial Auto­ma­tion

Quality Control or Press Hardening – PRESS-CHECK

Check the microstructures of sheet metal parts during the stamping process and establish a uniform high strength and quality of all produced stampings safely and with a contact-free method.

WELD-CHECK by InfraTec
Non-destructive Testing

Welding Inspec­tion – WELD-CHECK

Using pulse thermography, WELD-CHECK enables you a quantitative assessment of the inspected welds.

E-Lit Cabinet from InfraTec for Infrared Thermography
Non-destructive Testing

Electronic / Semiconductor Testing – E-LIT

Detect inhomogeneous temperature distribution and local power loss during the production using the Lock-in Thermography.

Quality Assurance for Coating Processes | InfraTec / Picture Credits: © iStock.com / Greppe
Indus­trial Auto­ma­tion

Quality Assurance for the Coating of different Materials | InfraTec

Infrared cameras allow the non-destructive and process-synchronous monitoring of coating processes to ensure that the coatings are free of defects as soon as they are applied.

Infrared Cameras for Plastics Industry Applic­a­tions

InfraTec Infrared camera
Zoom Cameras

ImageIR® 6300 Z

Image Format(640 x 512) IR-Pixel
Detector typeXBn

InfraTec Infrared camera
High-end Cameras

ImageIR® 8300 hs

Image Format(640 x 512) IR-Pixel
Detector typeT2SLS or InSb

InfraTec Infrared camera
High-end Cameras

ImageIR® 10300

Image Format(1,920 x 1,536) IR-Pixel
Detector typeInSb

InfraTec Infrared camera
System Cameras

VarioCAM® HD head 900

Image Format(2,048 x 1,536) IR-Pixel
Detector typeUncooled Microbolometer Focal Plane Array

InfraTec Infrared camera
Compact Cameras

PIR uc 605

Image Format(640 x 480) IR-Pixel
Detector typeUncooled Microbolometer Focal Plane Array

InfraTec Infrared camera
High-end Cameras

ImageIR® 9500

Image Format(2,560 x 1,440) IR-Pixel
Detector typeMCT

InfraTec Infrared camera
High-end Cameras

ImageIR® 9400

Image Format(2,560 x 2,048) IR-Pixel
Detector typeInSb

InfraTec Infrared camera
System Cameras

VarioCAM® HDx head S

Image Format(640 x 480) IR-Pixel
Detector typeUncooled Microbolometer Focal Plane Array

InfraTec Infrared camera
High-end Cameras

ImageIR® 9400 hs

Image Format(640 x 512) IR-Pixel
Detector typeInSb

Asso­ci­ated Indus­tries & Applic­a­tions

InfraTec Bondung and Sealing - Hot gas

Bonding and Sealing

Users can utilise infrared cameras during bonding and sealing to monitor and control various technological parameters.

additive manufacturing

Additive Manu­fac­turing

By in-line monitoring of thermal process parameters, infrared cameras from InfraTec support the optimisation of additive manufacturing processes.

All branches and application areas