WCA September 2020

wire China 2020

In addition to its tension meters, the company produces control instruments, including force gauges and test stands; universal strength testing machines; tachometers and stroboscopes; and thickness gauges.

With the IPU320, Fuhr has developed an inline profiling system that allows manufacturers of enamelled wire to meet the high requirements of the automotive industry. The IPU320 combines rolling and profile drawing processes, so large width-to-thickness ratios can be achieved by driven rollers. One of the most important requirements during development was uninterrupted operation for months. The IPU320 is equipped with a closed control system that does not require an electrical interface to the paint spray line. The required space is kept to a minimal size of two metres; retrofitting in paint spray lines is usually possible without having to adapt the existing system. has supplemented its series of stationary tension sensors with a new compact series. Differing from the existing models in geometry and design, the flat MZ series can be used where space problems arise due to wires or cables running in parallel, such as when entering a stranding machine. The sensors are equipped with different sized guide rollers, with the roll sizes depending on the required measuring range and the dimensions of the material to be measured. Measuring ranges from 0 to 2,000 cN to maximum 0 to 100 daN are available. All sensors are equipped as standard with a preamplifier, which has already proven itself with other Schmidt sensors. Analogue, digital and current are optionally available as output signals. Fuhr GmbH & Co KG www.fuhr-wire.com Hans Schmidt & Co GmbH Stand: W1C10 The Schmidt company

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Hans Schmidt & Co GmbH www.hans-schmidt.com

H Folke Sandelin AB Stand: W1F27

❍ IPU320 inline profiling system

construction. Nearly every project requires different wire dimensions, so short-term procurement or stockpiling is a logistical problem. In order to achieve higher production speeds and a high degree of flexibility, rectangular copper wires for transformer construction are not usually produced in line with enamelling lines, but are rolled, coiled and insulated in high-performance rolling mills in multi-core enamelling lines. For this application, Fuhr develops and sells rolling mills that meet the requirements of the transformer industry for precision, flexibility and productivity. Typical production speeds range from 200 to 800m/min, depending on the producible cross section. One rolling line can supply approximately eight to 15 painting lines. A state-of-the-art rolling mill has five rolling steps: two two-high mills and two round-rolling mills responsible for the pre-profiling, with final calibration carried out in Fuhr’s WST-type universal profile rolling mill. The automotive industry relies on enamel-insulated rectangular wires and requires manufacturers to prove that no wire damage has occurred before enamelling. Even when using the best winding and unwinding systems, it cannot be guaranteed that the bare wire will be free of damage during offline production. This results in the task of inline production. The concept of a five-stand rolling mill cannot be retained for inline profiling. Other than in transformer construction, standardisation in the automotive industry is high. Typical plants manufacture the same product for months or years. Therefore, the use of profile drawing dies in this area is possible, even if technical developments increase the possible lacquer speeds to up to 60m/min in the future.

H Folke Sandelin AB (HFSAB), from Sweden, will be co-exhibiting with Maschinenfabrik Niehoff GmbH at wire China. At the time of writing, it was still unknown if travel restrictions would prevent the company’s team from being present at the event in China. If the team is unable to attend, then visitors to the stand will be taken care of by colleagues from the Niehoff China office. Via modern communications, HFSAB staff will be available to discuss the latest lead extrusion controls and technology for saving lead during the extrusion process. HFSAB is a specialist in lead extrusion equipment and know-how for trouble-free lead sheathing of cables. For more than 60 years, the Lead Extruder from HFSAB has been designed, manufactured and assembled only in Sweden. The Lead Extruder is horizontal, floor-standing and fully automatic. It is easy to install and maintain, and its reliable control system enables continuous operation for weeks with little or no variation in temperature, wall thickness or concentricity. The lead wall thickness can be kept to a minimum with corresponding savings in lead. A range of energy-efficient melting pots are available for 10-, 18-, 35- and 60-tonne capacities. Also available from HFSAB are the CRRS and Model SM-H cable stripping machines. Both are capable of removing individual layers without causing damage to the subsequent layer, allowing the outer jacket, lead sheath or triple layer XLPE to be re-applied and the cable repaired. The CRRS machine is used for the removal of outer sheathing materials

❍ A tension sensor from the MZ range

wire China 2020 – Shanghai New International Expo Centre 23 rd -26 th September

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