Feb 22, 2008
Steering-angle sensor incorporates new plastics technologyBack
Construction|BASF|Bosch|Components|Flow|Safety|Car Manufacturers|Component Manufacturer|Electronics|Energy|Flow|Intricate Injection-moulding Tool|Product|Electronic Stability|Laser
© Reuse this
The steering-angle sensor that component manufacturer Bosch produces for various international car manufacturers is now being made of BASF’s easy-flowing Ultradur High Speed polybutylene terephthalate (PBT).
This plastic allows injection moulders not only to markedly shorten the cycle times, but also to make components of detailed filigree design. The steering-angle sensor plays an integral role in the safety of vehicles and provides the electronic stability programme (ESP) with information about the position of the steering wheel. This is why this part and its electronics are located directly on the steering column.
Following the first sensor generation made of Ultradur B4300 G4 LS High Speed PBT, made up of 20% glass fibres, Bosch recently went into serial production with its newly developed sensor for the latest generation of automotives. In view of the ever-growing requirements being made in terms of space, the new steering-angle sensor had to have even thinner walls and detailed filigree construction than its predecessor.
When standard PBT is used, only one-third of the intricate injection-moulding tool can be filled. In contrast, with the easy-flowing Ultradur High Speed PBT, whose good processing properties are due to BASF’s specially devised nanotechnology, the sensor can be manufactured without any problems.
Further, the steering-angle sensor made of this plastic can be laser-written with a high degree of contrast, so that the parts can be marked with very fine so-called data matrix codes containing a wealth of information about the part on a very small surface area.
Since the material can replicate details very precisely, thereby adhering to Bosch’s narrow tolerances, the sensor can be configured very flexibly, depending on the car model and on the desired functionality. This BASF PBT has also successfully made the transition from screw-in to snap-on connections. This material has now been approved for use at all Bosch facilities worldwide.
The BASF PBT, which has been modified with a special nanoadditive, serves to replace a standard PBT. The improved flow of this product allows users to lower the processing temperature as well as the injection and holding pressures in the injection moulding machine.
Energy savings of up to 20% can be attained and the cycle time can be reduced by up to 30%. As an alternative, the tool can have a simpler design and new components can have thinner walls, which translates into considerable material savings. The number of rejects also drops since the tool can be filled more easily with this easy-flowing plastic.
Edited by: Laura Tyrer© Reuse this Comment Guidelines (150 word limit)
Other Automotive Industry News
Swedish vehicle manufacturer Volvo Car Group’s new XC90 sports utility vehicle (SUV) will offer an unrivalled combination of power and efficiency with a dual engine, when the CX90 is revealed later this year.
Updated 9 minutes ago The Public Investment Corporation (PIC) is to sink $1-billion into African investments and equities, according to Finance Minister Nhlanhla Nene. "The PIC will, in the new financial year, also focus on developmental investments in Africa, with a minimum commitment of...
Updated 2 hours 4 minutes ago The lateral movement in the South African Chamber of Commerce and Industry’s (Sacci’s) Copper Theft Barometer for August could again point to the possibility that levels of copper theft were stabilising, the chamber noted on Thursday. The Copper Theft Barometer...
Updated 3 hours ago The Supreme Court of Appeal (SCA) on Wednesday ordered the South African Reserve Bank (SARB) to repay entrepreneur Mark Shuttleworth R250-million plus interest in a case about exchange controls. In a statement on his website, Shuttleworth pledged to put the money,...
Recent Research Reports
Road and Rail 2014: A review of South Africa's road and rail infrastructure (PDF report)
Creamer Media’s Road and Rail 2014 report examines South Africa’s road and rail transport system, with particular focus on the size and state of the country’s road and rail network, the funding and maintenance of these respective networks, and the push to move road...
Real Economy Year Book 2014 (PDF Report)
This edition drills down into the performance and outlook for a variety of sectors, including automotive, construction, electricity, transport, steel, water, coal, gold, iron-ore and platinum.
Real Economy Insight: Automotive 2014 (PDF Report)
This four-page brief covers key developments in the automotive industry over the past 12 months, including an overview of South Africa’s automotive market, trade figures, production and the policies influencing the sector.
Real Economy Insight: Construction 2014 (PDF Report)
This five-page brief covers key developments in the construction industry over the past 12 months. It provides an overview of the sector and includes details of employment in the sector, infrastructure and municipal spending, as well as insight into companies’...
Real Economy Insight: Electricity 2014 (PDF Report)
This five-page brief covers key developments in the electricity industry over the past 12 months, including details of State-owned power utility Eskom’s generation activities, funding and tariffs, independent power producers and prospects for the sector.
Real Economy Insight: Road and Rail 2014 (PDF Report)
This six-page brief covers key developments in the road and rail industries over the past 12 months, including details of South Africa’s road and rail network and prospects for both sectors.
This Week's Magazine
The latest TransUnion Vehicle Pricing Index (VPI) contains a number of small, but significant indications that the tide may at last be turning for the beleaguered used car industry. For the third successive quarter, used car inflation has increased on a year-on-year...
The South African new vehicle market is likely to reach around 630 000 units in 2014, down from the 650 000 units recorded in 2013, says Toyota South Africa Motors (TSAM) president and CEO Dr Johan van Zyl. Van Zyl is also president of the National Association of...
Efforts by the Kenya government to increase energy generation by 5 000 MW over the next three years received a major boost following the award of a $2-billion contract to build a coal power plant in Lamu. Despite allegations of irregular tendering process, the...
Using crafty wordplay on a well-known Internet meme, brilliant South African-born US entrepreneur and businessperson Elon Musk announced that Tesla Motors would not initiate patent lawsuits against anyone who, in good faith, wanted to use its technology. Instead,...
August new vehicle sales declined by 1.4%, to 55 722 units, compared with the same month last year. Assisted by the car rental market, the South African new passenger car market, at 37 953 units, contracted by 1 047 units, or 2.7%, compared with August last year.