Tag Archives: measuring

Science Research Technology

Efficient coating of O-rings

The new Rotamat system for small batches allows the efficient coating of work piece volumes from 2 to 15 liters.

Efficient coating of O-rings

The new Rotamat R 60 is suitable for coating of mass produced small parts made from elastomers/metal

At the DKT exhibition Walther Trowal presents the newly designed Rotamat R 60 for coating of mass-produced small parts like, for example, O-rings. This system was specifically developed for users who are increasingly switching to smaller batches and, generally, lower batch volumes. However, the R 60 offers all the features found in its larger „siblings“!

The new Rotamat R 60 is the first coating system on the market that allows efficient processing of work piece volumes between 2 and 15 liters. With a diameter of only 600 mm the drum is ideally suited for small batch volumes. The inclination of the drum is adjustable within a wide angle allowing its adjustment to different work piece geometries. It allows the intensive mixing of the parts in the drum and guarantees complete, optimum coverage by the spray nozzles.

With the new machine Walther Trowal takes into account that in connection with just-in-time requirements many companies generally place purchase orders in smaller work piece quantities.

Frank Siegel, sales manager „coating technology“ at Walther Trowal is now able to offer the right machine for practically every conceivable application: „Many of our customers want to coat small part batches but do not want to give up the high technical standard we have implemented in our larger units R 80 and R 90C. With the newly developed R 60 they can now efficiently coat small batches without having to invest in a larger machine.“

For the Rotamat R 60 the Trowal engineers have utilized the proven components of the larger machines: For example, the inlet and exhaust air system, the explosion protected LED lighting inside the drum and the mounting of the drum.

Here are some details of the innovative features

Precise control of the inlet air temperature

The measuring point for the inlet air temperature is immediately at the drum entry. Compared to measuring the temperature with a sensor behind the air heating unit the measurement is now much more direct allowing extremely precise temperature readings.

Eco-friendly operation

For typical applications – today 90% of all customers are using water-based paint – Walther Trowal supplies a specially adapted filtering system. For coating tasks with solvent-based paints the new R 60 – like with the bigger Rotamat units – can be equipped with a four stage exhaust air filtering system with a Papp filter, a filter mat and two pocket filters.

Low energy requirements

The capacity of the heating unit was adapted to the smaller drum diameter, resulting in considerably lower overall energy requirements. Depending on the technical characteristics of the work pieces and/or paint Walther Trowal can equip the machine with PID or pulse control for the heating unit. The result: Customers can also use paint types that do not allow going over or below certain operating temperatures.

Walther Trowal at the DKT 2018
July 2 – 5, 2018 | Nuremberg, Germany
Hall 12 , Booth 247

Facts about Walther Trowal

For 85 years Walther Trowal has been a pioneer and market leader in various surface treatment technologies. The company offers modular and custom engineered solutions for a wide range of surface treatment problems.

Initially only making vibratory finishing equipment, over the years Walther Trowal has continuously broadened its product range and today offers a wide portfolio of equipment and services for improving all kinds of surfaces, e.g. mass finishing, part cleaning, shot blasting and drying of a wide spectrum of work pieces, last but not least, the coating of mass produced small parts.

Walther Trowal offers not only various types of equipment but complete surface treatment systems: By linking the various equipment modules and automating the complete process, we are able to precisely adapt our process technologies to the technical requirements of our customers. This also includes various types of peripheral equipment and process water cleaning and recycling systems. Of course, we also offer comprehensive pre- and after-sale service like sample processing in one of our demonstration labs and global repair and maintenance service.

Walther Trowal serves many customers in many industries around the world. For example, in the automotive and aerospace industry, medical engineering and wind power generation.

Walther Trowal GmbH & Co.KG
Georg Harnau
Rheinische Str. 35-37
42781 Haan, Germany
Phone: +49 2129.571-0
Fax: +49 2129.571-225
E-Mail: info@walther-trowal.de
Url: http://www.walther-trowal.de

VIP Kommunikation
Regina Reinhardt
Dennewartstraße 25-27
52068 Aachen, Germany
Phone: +49.241.89468-24
Fax: +49.241.89468-44
E-Mail: reinhardt@vip-kommunikation.de
Url: http://www.vip-kommunikation.de

Electric Electronics

Absolut Analog Magnetic Scales MXAX and MXAZ

The magnetic scales MXAX and MXAZ combine several capabilities with a low price. Magnetic scales are assembled with a encoded magnetic tape, which provides very high protection against dirt and external contamination.

Absolut Analog Magnetic Scales MXAX and MXAZ

The MXAX and MXAZ magnetic scales are absolute linear measuring systems for minor linear displacements up to 1250 mm. They“re ideal for harsh environmental conditions (heavy-duty sensor) occurring in commercial vehicles with telescope systems or in hydraulic cylinders, for example. They have a broad spectrum of applications: absolute magnetic scales are also suitable for industrial trucks, forklifts, lifting platforms, or loading platforms.
The magnetic scale combines several advantages with a low price. The Macromelt® housing is particularly robust and encloses both the magnetic sensor and the electronics. The high protection factor of IP68 and IP69K withstands the majority of aggressive industrial environments. The sensor is therefore highly resistant to dust, dirt, moisture, moisture, oil, grease, and UV rays.The thermoplastic housing further protects the sensor from oscillation, mechanical strain, shock, and vibration.
The sophisticated magnet technology allows for non-contact measurement, thus guaranteeing stable measurements, maintenance-free operation, and a long operating life. The sensor“s mounting tolerance of up to 2 mm ensures easy installation without extensive adjustment.
Analogue signal outputs are available with 4…20 mA current or 0…10 V voltage. Thanks to the Teach Function, the sensor is easily scaled to the required axis, and only the start and stop point need be defined. The absolute magnetic scales reach an accuracy of up to 2 µm at an operating temperature between -25 and +85 °C. Magnetic tapes have a good accuracy to travel speed ratio of max. 5 m/s. The position is refreshed every 100 µs for a maximum repeatability of 1 increment. The status LED aids visual diagnosis and programming of the magnetic scale. The MXAX and MXAZ series are absolute linear systems, so the sensor head can reliably determine its exact position, even in the event of a mains failure.
MXAX and MXAZ magnetic scales are combined with an encoded magnetic tape which is highly resistant to dirt and external contamination: it only needs to be affixed.

WayConPositionsmesstechnik GmbH has been developing and manufacturing precision sensors for position and distance measurement since 1999. As an innovative company with headquarters in Taufkirchen near Munich and a branch in Brühl near Cologne, we sell our products all over the world. Our goal is to provide our customers with the best possible measurement technique solution: from high-quality sensors from the standard range to customer-specific solutions, from prototype to series production – for the most varied applications in industry and research. The products made in Taufkirchen are subject to rigorous quality standards and every single one is delivered to our customers with a calibration certificate.

Waycon Positionsmesstechnik GmbH
Marcus Venghaus
Mehlbeerenstr 4
82024 Taufkirchen
Phone: 089-67-9713-0
E-Mail: info@waycon.de
Url: http://www.waycon.biz

Waycon Positionsmesstechnik GmbH
Marcus Venghaus
Mehlbeerenstr. 4
82024 Taufkirchen
Phone: +49 89 679713-0
E-Mail: presse@waycon.de
Url: http://www.waycon.biz

Science Research Technology

2D temperature distribution measurement

Measuring the temperature distribution of the top gas in blast furnaces

2D temperature distribution measurement

t-matriX for the temperature measurement inside the blast furnace

At Metec, IMI Z&J Technologies GmbH will present the new 2D gas temperature measuring system t-matriX for blast furnaces. The system measures the distribution of the top gas temperature in two dimensions. This provides much more information than systems making spot-type measurements. Due to the solid sensor equipment and the fact that it is installed outside the blast furnace, the system is also less costly and less maintenance-intensive.

The t-matriX system consists of several interlinked transmitter and receiver units of identical design, distributed along the circumference of the blast furnace. As they are installed outside the furnace chamber, they are accessible at any time. t-matriX uses the principle of acoustic pyrometry, i.e. the principle that the speed of sound in a gas changes as a function of temperature.

The system measures the time it takes for an acoustic signal to propagate between the transmitter and receiver units. From the individual, integral sound propagation times, the tomographic software of the system calculates the temperature distribution in the measurement plane. This technique no longer measures the top gas temperature at certain spots, as used to be common practice in the past, but in two dimensions across the entire furnace chamber. The system not only measures and calculates the temperature distribution. It is also designed to automatically determine hot spots.

The acoustic signal is generated by means of nitrogen. For this purpose, in one of the transmission and receiver units a solenoid valve is opened, releasing nitrogen which will flow through the unit now acting as transmitter. The resulting noise is recorded by a microphone in the transmitter and stored as a reference signal. The individual microphones of the other seven units will receive a broadband noise, which will be compared with the stored transmitted signal by means of a dedicated correlation technique. From this, the tomographic software will calculate and graphically display the temperature distribution in the respective plane. The system provides the results virtually in real time. The readings are updated every three to four seconds. The gas temperature measurements by the system are not influenced by radiation effects resulting from the heavily dust-laden atmosphere in the blast furnace.

In addition to the 2D analysis, the system provides various other advantages over conventional temperature gauges. No equipment is installed inside the blast furnace. The transmission and receiver units are mounted on studs outside the furnace chamber. All that is needed is a drill-hole in the refractory brickwork. The system can be serviced while the furnace is in operation.

To summarize the benefits: t-matriX provides a lot more information than a system that makes spot measurements. However, its life-cycle costs are significantly lower due to its solid sensor equipment and the low maintenance effort involved.

Blast furnace operators using this system in combination with IMI Z&J“s solution p-matriX – a system providing a three-dimensional image of the burden geometry – will benefit from highly valuable information about the processes going on inside the blast furnace, which was not available to them in the past. Both systems can at any time be retrofitted to existing blast furnaces, irrespectively of the type of blast furnace top.

IMI Z&J at Metec 2015 (16 – 20 June in Düsseldorf, Germany):
Hall 4, stand E17

About IMI Z&J

IMI Z&J is an international leader in custom-engineered high-temperature valves and equipment for the Iron & Steel, Glass, Petrochemical and Refining industries.

More than 135 years of experience and application of latest engineering technology and fabrication procedures guarantee unique, high-quality, specialized valves. We also provide our customers in the Iron & Steel business with special plants for blast furnaces, in particular: „Energy Recovery Turbine Units“, „No-Bell Top“ charging devices and burden measurement equipment („t-matriX“ and „p-matriX“).

Commissioning, repair and overhaul of our products, installed worldwide, also belong to our core business.

Our in-house engineering assets enable IMI Z&J to offer customized solutions for critical applications in the industries we serve. High operating temperatures, large nominal valve sizes up to 6 m diameter – larger by request – together with high frequency of actuation and very long maintenance-free operating periods are IMI Z&J´s specialty.

Concerning safety and environmental compatibility, our products always fulfil the most recent and highest specifications. An extensive and internationally recognized quality management system (ISO 9001:2000 / PED 97/23/EC) with additional international special approvals guarantees products of the highest quality of workmanship.

Over the years, IMI Z&J engineers have been working closely with end-users, technology licensors and operators to develop advanced technologies to lower overall long-term operating and investment costs of high temperature valves and special equipment.

The customers of IMI Z&J include world-leading steel companies like ArcelorMittal, Hüttenwerke Krupp Mannesmann, Salzgitter Flachstahl, TATA Steel, ThyssenKrupp Steel and voestalpine.

Z&J Technologies GmbH
Josef Weitz
Bahnstraße 52
52355 Düren

Regina Reinhardt
Süsterfeldstraße 83
52072 Aachen

Science Research Technology

Pixargus: Drillhole Inspection makes automatic installation of door seals safe and reliable

Pixargus: Drillhole Inspection makes automatic installation of door seals safe and reliable

ProfilControl Surface systems inspect the surfaces of profiles.

100-percent inline inspection instead of random checks and manual measurements

At „K 2013“, Pixargus will introduce the new „Drillhole Inspection“ module for its ProfilControl Surface (PCS) systems, which now in addition to inspecting the surfaces of rubber or caoutchouc profiles can also check the presence and position of drillholes in door seals for vehicles.

In the manufacture of sealing profiles for vehicle doors, the Drillhole Inspection module checks as early as during the production process whether all venting and drill holes have been made and whether they are all in the right position. The system triggers an alarm as soon as it detects that a drill hole is missing, that it does not have the correct diameter or shape, or that the spacing between the holes is not as it should be.

Especially for automated assembling processes, this type of inspection is paramount as it ensures that the door seals can be installed quickly and reliably. In the past, checking the drillhole positions was a very complicated procedure prone to errors because the high production speeds make it impossible to take a manual measurement of each spacing. Consequently, manual checks were only made on a random basis. Now, the new module makes it possible for the first time to check the entire profile in an inline process.

With the Drillhole Inspection module, Pixargus is complementing its line of inspection systems for sealing profiles used in automotive construction. It belongs to the family of Pixargus ProfilControl Surface (PCS) systems, which inspect the surface condition of profiles in an inline procedure.

As soon as the module detects any out-of-spec condition, it displays the defect and the defect class, and sends out a signal. The signal can be used to mark out-of-spec sections of the profiles or control downstream cutting and sorting equipment. This relieves the human inspector from the monotonous task of visual checks and painstaking sorting of the profiles into good and bad.

The direct feedback of ProfilControl 6 data into the process makes it possible to correct the production process without delay, ensuring that defects do not continue along the profile.

Pixargus at „K 2013“ in Düsseldorf (October 16 -23, 2013):
hall 11 / stand E14

About Pixargus

Pixargus develops and manufactures systems for optical inline measurement and inspection of plastic and rubber profiles. Established in 1999 as a spin-off of the Institute of Plastics Processing (Institut für Kunststoffverarbeitung IKV) of the Technical University RWTH of Aachen/Germany, Pixargus has specialized in optical quality control of extruded products made of plastics and rubber.

Pixargus systems inspect sealing profiles – for example, for the automotive industry – and tubing, catheters, cables or window seals as well as raw material (compounds) made of thermoplastic elastomers (TPE) and rubber. Additionally, Pixargus offers systems for the inspection of – textured, woven or non-woven – web material.

Worldwide almost all major manufacturers of automotive rubber and TPE profiles use Pixargus systems for surface inspection and profile measurements. The underlying image processing technology is also the basis for the recent foundation of the company GoalControl GmbH and for the soccer goal-line technology of the same name, which proved successful during the 2013 FIFA Confederations Cup.

Based in Würselen near Aachen/Germany, Pixargus GmbH is active worldwide through its US branch and various international technical agencies.

Pixargus GmbH
Dirk Broichhausen
Monnetstraße 2
D-52146 Würselen / Germany

Regina Reinhardt
Suesterfeldstraße 83
52072 Aachen / Germany

Science Research Technology

Directional light avoids follow-up costs and complaints

Directional light avoids follow-up costs and complaints

A flaw in the lacquer of a trim strip for an automobile is visible in light emitted by iLux LightBox

The iLux LightBox makes for concentrated, non-tiring visual surface inspection

The new iLux LightBox developed by LDV Laser- und Lichtsysteme GmbH makes also those surface defects visible which under normal lighting conditions in a workshop would remain undetectable. The LightBox has been adapted to the human eye, allowing concentrated, non-tiring working for long periods of time.

Unlike common light systems, the LightBox does not direct the light beam straight to the work place but deflects the light via a special deflecting unit fitted with lamellae in such a way that the impingement angle of the light becomes very acute. The light runs almost in parallel to the product to be inspected. Through this effect the structures of the surface defects come out better and are more clearly visible.

Deflecting the light provides non-glaring working conditions and uniform illumination of the entire surface to be inspected. The lighting conditions are constant within the operator“s complete area of reach. Hence the eyes do not need to be adapted to changing light intensity. As a result, the LightBox increases the reliability of the inspection and avoids waiting times.

The lighting provided by the LightBox can be adapted in multiple ways to the reflection properties of the work pieces. However, the optimal light intensity in each individual case is not only a matter of the material surface. Every person prefers different light intensities, last but not least depending on the time of the day or year and the time spent in the workshop.

By means of the LightBox the lighting of the working area is perfectly adaptable to the human operator“s individual vision. Too intense a light causes stress to the human eye, leading to premature tiring. By adapting the intensity, the LightBox increases the operator“s faculty of sight many times over. Such relaxed viewing is beneficial to the operator“s eyes and allows highly concentrated working. This guarantees good detection rates over long periods of time.

The iLux LightBox will be fitted with lamps with daylight spectrum specifically selected for the detection task at hand. While for colour matching – as in painting shops or at automotive industry suppliers – it is important to have excellent trueness of colour, in microchip production, for example, it may be necessary to have a splinter shield.

The iLux LightBox comes in two standard sizes: 1,200 x 800 mm and 1,500 x 800 mm. It illuminates an operator“s entire area of reach of about 1.6 x 0.6 m. On request, LDV also supplies the unit in customized sizes for any individual conditions on site. Being of very compact design, the iLux LightBox can be easily transported and is therefore ideally suited for use at varying inspection places.

About LDV

LDV Laser- und Lichtsysteme GmbH develops, manufactures and sells optical systems for measuring and quality-assurance applications.

On the one hand, the product range comprises non-contact speed and length measuring systems. Typical uses of these devices are mass flow control systems, elongation measurements and other applications in hot and cold rolling mills.

On the other hand, LDV supplies equipment for the visual inspection of surfaces of single work pieces as well as continuously produced strip. The company designs fully equipped inspection work stations taking into due account ergonomic aspects. This not only includes an analysis of the local conditions and tests in the light laboratory but also training of the customer“s personnel.

Systems from LDV are in use throughout the world at leading companies, for example in rolling mills of the steel and NF-metals industries as well as at operations of automotive producers and their suppliers.

LDV Laser- und Lichtsysteme GmbH
Heinz Hahne
An der Wethmarheide 36
44536 Lünen / Germany

Regina Reinhardt
Süsterfeldstraße 83
52072 Aachen

Electric Electronics

PCE-DC 2 – Safe Clamp Meters in pocket size

PCE-DC 2 - Safe Clamp Meters in pocket size

The new Multimeter PCE-DC 2

Small conductive and current clamp meters are an indispensable accompaniment to electricians when it comes to current measurement in the AC and DC area. In order to work professionally, the new Multimeter PCE-DC 2 is the perfect clamp meter for all locations.

Small conductive and current clamp meters are an indispensable accompaniment to electricians when it comes to current measurement in the AC and DC area. In order to work professionally, the new Multimeter PCE-DC 2 is the perfect clamp meter for all locations.
With a weight of only 175 g and an 18 mm big diameter of the clamps, the digital multimeter is an essential measuring device which is to be recommended in areas that are difficult to reach.
The PCE-DC 2 Clamp Meters of PCE Instruments are equipped with a contactless voltage tester function and a measurement value memory. Even dark sites of deployment are no problem for the small conductive and current clamp meters anymore, because of the integrated flash light and the illuminated big display.
The ISO-calibration certification incl. test certificate is included among separately available equipment for these digital clamp meters. As a consequence, these clamp meters are also for use in industry. The devices possess an automatic turn-off function which saves the power of the 2 customary 1.5V AAA-batteries. Thanks to the PCE-DC 2, machines do not need to be disassembled anymore in order to measure different conductions.

Further information concerning digital clamp meters can be found on: Clamp Meters

PCE Instruments is specialized on the corporate sales of high-performance and innovative products from the sectors of measurement-, control-, weighing-, and laboratory technology. The portfolio covers a broad, diversified range of products in these areas, not least with their very own product line-up PCE-series.
PCE Instruments is characterized by wide-reaching services. That enables PCE Instruments to be a professional partner for industry, trade and research. Founded in 1999 as a small engineering office in Germany, the company has now broadly expanded. Locations in Spain, Italy, England and Chile have been established. Due to investments in new offices-, manufacturing and storage areas, the operating area with new sectors of research and development and marketing have been expanded. From the small jewellery scale to a crane scale, from a small range finder to the infrared camera, from the calibrated anemometer up to the professional weather station; the online shop has everything. Our Technical staff will gladly help and offer free advice to customers. In the year of 2012, all locations were unified under the name of PCE HOLDING in order to be well prepared for future growth.

PCE Instruments UK Ltd.
Tim Wrede
Units 12/13 Southpoint Business Park Ensign Way
SO31 4 Southampton Hampshire
+44 ( 0 ) 2380 98703 0