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PRODUCTS
FASTENINGS & ADHESIVES
PBT OFFERS ‘OUTSTANDING’ ADHESION WITH WIDELY USED SILICONE ADHESIVES
There has been a sharp rise in demand within the automotive industry for thermoplastics for electronic equipment and modules, and this is due to e-mobility and the move towards driving assistance and safety systems. Typical applications include housings for radar
sensors, control units and cameras. During the manufacture of these, injection- moulded parts – such as covers, side panels, bases and connectors – are bonded, often with silicone adhesives. The thermoplastic substrates often have to be adapted to suit these adhesives. One successful example of this is the new
polyester Pocan B3234HR S2 (PBT) from Envalior. This hydrolytically stabilised compound is said to offer outstanding adhesion with a primer-free applied, thermally quick-hardening, single-component silicone adhesive that is already widely used on the market. “Thanks to its outstanding bonding properties
with this adhesive, our new compound has replaced a rival PBT product in the ongoing series production of electronics housings for driving stability systems. These safety-relevant systems are used in the electric and internal combustion engine vehicles manufactured by a number of international automotive manufacturers, including from China,” explained Thomas Babl, who heads Envalior’s application development
and technical customer service team at its site in Hong Kong. The driving stability systems are produced by TE Connectivity Corporation. Pocan B3234HR S2 is based on Pocan B3233HR. This PBT compound already offers excellent adhesion with numerous silicone adhesives and has proved itself over many years in the series production of in-vehicle electronic components such as connectors and parking brake housings. “To optimise the material, we invested in two
standard test systems for pull-off adhesion tests. We also developed our own manual peel test. Among other things, this allows us to quickly test the strength of adhesives and so instantly integrate our findings in ongoing development projects,” explained Babl. The new Pocan B3234HR S2 not only ensures
high-strength adhesion with the single- component silicone adhesive but also offers hydrolysis resistance. This ensures that the electronics housings for driving stability systems are resistant to hot and humid environments. The new structural material also exhibits similar mechanical properties to Pocan B3233HR, including high tensile strength and elongation at break, the company adds. Envalior will be putting the new test equipment to intensive use in the future with the aim of developing further specially tailored, application- and customer-specific, thermoplastics for silicone adhesives.
Envalior
https://envalior.com/products-services/
CORDED AND CORDLESS GLUE GUNS ENABLE TASK-SPECIFIC DOSING
Manufactured by Steinel, the compact Series 3 glue guns are available as a corded version, the GlueMatic 3011, and the cordless MobileGlue 3011. The gun comes with a Bosch Power-for-All (PFA) battery and uses larger 11mm sticks, while an ergonomic glue feed and a changeable nozzle make task-specific dosing of glue easier. The cordless MobileGlue 3011 gun has an 18V power supply pack and, after an initial heat-up of two minutes, a fully charged battery enables the gun to be used for up to 90 minutes. It also has a high glue feed rate of 20 grams per minute. The cordless glue gun comes with two temperature settings of 130˚ and 200˚C, enabling the use of 11mm glue sticks with different melting temperatures. A temperature display ensures you always know the temperature the gun is set to. Among the accessories available is a fine-tip nozzle for tasks that require precision. In addition, the product also features a quick-heat and an eco-mode that automatically switches off the gun after five minutes. Steinel’s latest product releases
are now available on the Conrad Sourcing Platform.
Conrad Electronic
www.conrad.com
30 DESIGN SOLUTIONS NOVEMBER 2023 ROBOTIC WELDING
SYSTEMS FOR METAL MANUFACTURING APPLICATIONS
ArcWorld Robotic systems from YASKAWA are suitable for replacing, or supplementing, manual welding in metal manufacturing applications. Easy to install and operate, the ArcWorld HS
Micro and RS Mini Robotic systems occupy a footprint of either 2.3 sq. metres for the Mini, or just 1.4 sq. metres for the Micro. Both systems offer the potential for operators to double their output with up to half the preparation time when compared to manual welding, the company claims. The Micro system is supplied complete with
robot and controller and its hinged door opening provides options. The Mini system has a revolving door and table, which again means maximum flexibility within a compact system. The systems are designed to allow quick changes of jigs. These also ensure improved operational consistency with reduced ‘spatter’ which improves the capacity for fettling. Both systems incorporate a MOTOMAN- AR900 robot with YRC1000 controller, a start/stop button panel and fume extraction hood. They also feature a platform and casing with dark green polycarbonate glare shield protection and CE-marking. The Yaskawa Motoman ArcWorld Micro and
Mini robotic welding systems are pre-engineered, pre-assembled and shipped ready to weld.
Motoman YASKAWA
www.Yaskawa.co.uk
FAST CURING MMA ADHESIVES
SCIGRIP SG800 High Temperature MMA Methyl Methacrylate Adhesive from Intertronics is a two component structural adhesive for bonding metals, as well as composites and plastics. MMAs are fast curing, two- part adhesives that cure on mix at room temperature to form resilient bonds. Designed to withstand temperatures up to 150˚C over prolonged periods, the new adhesive displays good strength retention, fatigue and impact resistance at elevated temperatures. As such, it is suitable for applications like under the bonnet engine bay component assembly and metal bonding prior to paint baking cycles. The adhesive is suitable for assembly operations thanks to its ability
to provide a primerless metal bond that requires little to no surface preparation by the user; and formulations are available with different working times (four to 15 minutes). SG800 is supplied in pre-measured, side-by-side double syringe cartridges and includes static mixing nozzles. At high temperatures SG800 has good strength retention and
outstanding environmental and chemical resistance. In addition, the material performs well in industry standard tests including ASTM D3163 and truck manufacturer PACCAR’s CMT038.
Intertronics
www.intertronics.co.uk
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