Stieler Kunststoff Service GmbH - Konstruktionsbüro Hein GmbH

Stieler Kunststoff 

Service GmbH 

Wittenstraße 12/14 

D 38640 Goslar 

Phone +49 (0)5321-334550 : Fax 334559 

E-mail: info@stieler.de 

Homepage: www.stieler.de 

Konstruktionsbüro 

Hein GmbH 

Marschstraße 25 

D 31535 Neustadt 

Phone +49 (0) 5032-63151 : Fax 63116 

E-mail: info@kb-hein.de 

Homepage: www.kb-hein.de 

9th Technology Workshop on Feb 25, 2005 

for product development, mould design and injection moulding in Neustadt (Hanover) 

Ulrich Stieler 

Director 

Cooperation, expert lectures and exhibition 

Report 

12 expert lectures, 32 exhibitors and 260 visitors from 

Europe met for preparing cooperations and future 

projects or for simply intensifying existing contacts. 

Working together as partners is what Europe needs. 

The Technology Workshops in Neustadt, 

Goslar and Engelskirchen (Barlog plastics) 

have proved to be an excellent platform for 

product development, mould design and 

injection moulding for 9 years. 

Especially today, plastics engineering is a 

discipline that needs new impulses from new 

technologies and procedures as well as from 

cooperation and living teamwork. 

Once a year, Konstruktionsbüro Hein GmbH 

and Stieler Kunststoff Service GmbH offer this 

established platform for communication in the 

plastics engineering industry. 

Rudolf Hein 

Director 

32 exhibitors present their latest technologies regarding development and processing in the 

field of plastic materials. This report can only give detailed information on some of the 

exhibitors. For additional information please see also the list at the end of this report and the 

information on the CD (only available in German). 

The excellent teamwork during the first project “Clip“ of HASCO, 

ISK, Dicronite, Linde, Barlog plastics and Konstruktionsbüro 

Hein is an impressive example for what can be achieved by 

cooperation. For example, an application using a Baby-Plast 

injection moulding machine with special standard elements for 

mould design and a 16fold hotrunner system was demonstrated 

at the exhibition. As there is hardly any room left for a good 

conventional temperature control here, we found a new way 

- again. The CO2 solution needs minimum space and allows for an effective temperature 

control. 

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Phone +49 (0)5321-334550 : Fax 334559 







Phone +49 (0) 5032-63151 : Fax 63116 



Laser marking is more and more used in all areas. Even for materials like POM (white), that 

were difficult to handle in the past, Barlog plastics GmbH was able to demonstrate a good 

typeface by using a colour change at the Technology Workshop. 

The simulation of distortion of 

plastic materials and the ensuing 

optimisation of geometries in order to reduce distortions was 

displayed using examples at the exhibition stand of 

Konstruktionsbüro Hein. 

In order to produce plastic parts at a high reliability with 

regard to the process, deadlines and dimensions, the distortion can be reduced significantly 

in advance by taking a number of measures. If necessary, the remaining distortion is 

compensated using negative correction – while maintaining the tangentialities. That means 

that the tool is produced with certain curves in order that the resulting component will be 

straight and according to the required dimensions. For semi-crystalline materials in particular, 

the well-balanced temperature control of the tool is of high significance. Here, we provide 

mould cores made from 1.2343 (HRC56) molten by laser with a temperature control close to 

the contour, which will then be polished on the inside and coated against corrosion. 

The move towards unleaded solders with higher soldering bath 

temperatures results in a number of requirements for development and 

processing in the E&E industry, regarding the plastic raw materials for 

plugs, switches and other elements. Fa. Barlog plastics of Engelskirchen 

(Germany) was able to present innovative solutions within the new 

standards on environmental compatibility (e. g. Directive for the reduction of Waste Electrical 

and Electronic Equipment) and the requirements for fire protection (e.g. IEC 60335-1) in 

order that polyamides and polyester remain the number 1 construction materials in the future. 

Some like it cold. Stieler Kunststoff Service 

GmbH presented the COOL FLOW SYSTEM – 

an already well-proven system for the injection 

moulding of plastic materials that does not only 

reduce distortions but also decreases the cycle 

for gas injection moulding dramatically. At first, 

the gas injection process is carried out 

conventionally. Only after the volume shrinkage 

of the plastic material is almost finished the cavity 

is being rinsed using an especially developed ventilation system: A counter-pressure valve 

rinses the cavity with nitrogen that is -25°C cold in order to additionally transfer the heat from 

the inside. The tool developed for this procedure last year in cooperation with 

Konstruktionsbüro Hein (Cold Handle) could meanwhile be tested with diverse procedures for 

gas injection and thus provided us with further experiences we can use for new applications. 

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Phone +49 (0)5321-334550 : Fax 334559 



By using the new LDS technology, Harting is able to 

selectively add metal tracks onto three-dimensional solids in 

an entirely additive production process without additional 

tools. This procedure allows for using much smaller 

components connecting the mould and the tracks, as you 

can see here as for a hearing aid. 





Phone +49 (0) 5032-63151 : Fax 63116 



Today’s high-performance plastic materials with additives for fire protection result in 

significantly increased requirements on the screws of the injection moulding machine. At our 

event, Boyke pointed at interesting applications during their lecture. Different coatings for 

wear protection and with minimum adhesion to the injection moulding tools and screws are 

compared. 

A complex analysis of a mounted part after assembly, i.e. measuring inside 

of the part and inspecting it section for section, allows for an encompassing 

analysis of the entire component. State-of–the-art computer tomography is 

utilised for a stunning variety of applications by Konstruktionsbüro Hein. It 

is thus a useful tool for fault diagnosis. 

Measuring the temperature and the pressure directly at the surface of the mould contour is 

essential for the process safety of injection moulding machines. Nevertheless, this tool is 

rarely used even though the spatial requirements are very low. Kistler showed why and how 

this instrument can be used efficiently. 

Water transfer pressure by Dips’n’Pieces is an innovative 

technology for decorating the most diverse materials and 

forms. As differing forms as covers for mobile phones, 

dashboards, window profiles or rims for car wheels can be 

coated with decorations such as carbon, burl wood, granite, 

brushed aluminium or other imaginative looks. the result is a 

unicum. A final coating with clear varnish renders the 

surface highly resistant against scratches and abrasion as 

well as weather and UV proof. 

Again, we compiled the contributions by our 12 speakers and 32 exhibitors on one CD for 

you. Overview of the CD contents (CD only available in German): 

1) Organisers gives you comprehensive information on the companies Hein and Stieler. 

2) Under Exhibitors you find short information on the exhibitors with links to further PDF 

files with information on the services they offer. 

3) By selecting Lectures you will get to documentation on the individual lectures. 

4) This Report is filed as a PDF file in order that you can distribute it to colleagues and 

partners. 

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Phone +49 (0)5321-334550 : Fax 334559 







Phone +49 (0) 5032-63151 : Fax 63116 



Impressions 

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Phone +49 (0)5321-334550 : Fax 334559 







Phone +49 (0) 5032-63151 : Fax 63116 



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Phone +49 (0)5321-334550 : Fax 334559 







Phone +49 (0) 5032-63151 : Fax 63116 



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Phone +49 (0)5321-334550 : Fax 334559 



The casual part of the conference left room 

for intensifying contacts. 





Phone +49 (0) 5032-63151 : Fax 63116 



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Phone +49 (0)5321-334550 : Fax 334559 



„Hotch Potch“, a band from Neustadt, 

presented excellent oldie rock. 





Phone +49 (0) 5032-63151 : Fax 63116 



We wish you a successful year 2005 and 

hope to see you again, at the latest on the 

occasion of our “Technology Workshop 

2006”. 

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Exhibitors 





Phone +49 (0)5321-334550 : Fax 334559 







Phone +49 (0) 5032-63151 : Fax 63116 



Alphacam: A 3D printer for your office was set-up and presented in action. 

Altair: CAE software environment for pre- and post-processing in the field of the optimisation 

of structures 

AMTEC GmbH: Tool design for high demands / MIM (metal powder injection moulding) 

Barlog plastics GmbH: Plastic raw materials and services 

BWT: Regenerated screws and reverse flow locks, surface coating 

CFK-Kriftel GmbH: Wire cutting with a corner radius of 0,02 mm / minute precision-drilling 

CiBaTec GmbH: Micro-jetting services / Sales of device technology for micro-radiation 

DICRONITE U.T.E. Pohl GmbH: Surface coating with tungsten disulfide (see project Hasco) 

Dips’n’Pieces: 3D decoration / water transfer pressure – makes unicum plastic parts 

DME-Normalien: Standard elements for mould design 

Günther Heißkanaltechnik GmbH: The hotrunner fitting your plastic material. 

Harting Mitronics AG: Technologies for 3D circuit carriers and semi-conductor housings 

Hasco /KB-Hein/ISK: Application with 16fold hotrunner and standard elements for a “Baby- 

Plast“ 

IHK-Hannover: Cooperation platform 

Industrievertretung Thomas Möschke: HEB hydraulic cylinders, Cumsa standard elements 

Inno- shape GmbH: Inserts manufactured with temperature control close to the contour by 

means of “Direct laser forming“ 

Kistler: Modules for measuring the temperature and the internal pressure in order that your 

injection process becomes repeatable. 

Krahl- Messtechnik: Sartorius weighing technology, moisture measuring systems, melt 

index measuring tool, filler material determination. 

VHS Hannover Land: Training for Windows, languages, CAD and CAM courses 

Konstruktionsbüro Hein GmbH: Product development, injection moulding simulation, tool 

design, FEM, calculation of distortion, CAD and CAM software sales 

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Phone +49 (0)5321-334550 : Fax 334559 







Phone +49 (0) 5032-63151 : Fax 63116 



Ingenieurbüro Streifling: Product development “Rubber“ and dimension measuring services 

Netstal: Injection moulding machines (examples of application) for thin-wall technology and 

short cycles 

Phoenix-x-ray GmbH: Computer tomography: the complex analysis of assembled 

components. 

PSG Plastic Service GmbH: Hotrunner systems, temperature control systems 

Schmelzmetall Deutschland GmbH: copper alloys and hybrid materials with high thermal 

conductivity 

Signal Computer GmbH: Notebooks, data safety systems 

Simcon kunststofftechnische Software GmbH: Software for injection moulding simulation 

Stieler Kunststoff Service GmbH: Equipment technology for gas and water injection, 

“CoolFlowSystem“ 

TEKAS GmbH: Standard elements small parts 

Thermoplay Deutschland GmbH: Hotrunner systems 

Tool Temp Deutschland GmbH: Temperature control systems 

Uddeholm: Tool steel for mould design, e. g. for good thermal convection. 

Lectures 

Barlog Plastics GmbH: 

Plastic materials in E&E Industry in the course of change l 

BWT GmbH: 

Coatings for injection moulding tools and screws 

CFK- CNC- Fertigungstechnik Kriftel GmbH: 

Wire cutting, drilling and sink erosion at the limit 

Dips’n’Pieces: 

3D decoration parts with water transfer pressure 

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Harting Elektro-Optics: 





Phone +49 (0)5321-334550 : Fax 334559 



Laser structured 3D circuit carriers 

Hasco Hasenclever GmbH & CoKG / KB- Hein: 





Phone +49 (0) 5032-63151 : Fax 63116 



16fold hotrunner tool with CO2 temperature control and special 

standard elements for a “Baby-Plast“ 

Inno- shape: 

Inserts manufactured with temperature control close to the contour 

by means of “Direct laser forming“ 

Kistler Instrumente GmbH: 

Considerable improvement of efficiency and quality by means of 

internal pressure measurement of the tool 

Konstruktionsbüro Hein GmbH: 

Examination of components with an emphasis on FEM calculations 

Netstal Deutschland GmbH: 

Applications and advantages of “Electric injection moulding 

machines“ 

Phoenix-x-ray Systems & Services GmbH: 

Computer tomography for analysing components 

Stieler Kunststoff Service GmbH: 

“CoolFlowSystem, the cold gas injection is favourable for the 

process“ 

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Stieler Kunststoff Service GmbH - Konstruktionsbüro Hein GmbH

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