Extrusion Asia Edition 2-2019

16 管材挤出- 访谈 Extrusion Asia Edition 2/2019 殊径向分配器或螺旋分配器的涂覆管模头。现在，我专注于“ 旋转模具”这一课题，比如用于生产带有螺旋肋条的管道等产 品的工艺。我还在四月份举行的杜塞尔多夫AMI会议上就这一 课题进行了演讲。 你自己制造挤出机和模具吗？ Dobrowsky : 我没有。在过去的十年里，我建立了一个与 我合作的企业网络。在访问客户、检查问题、提供咨询、进 行整个过程规划、准备规范、监控施工、参加组装和发布等 方面，我是专家。制造和组装由我的土耳其合作伙伴企业完 成。我们还在发运前对设备进行测试。主要部件来自于欧 洲，以确保质量。因此，我的口号是“在奥地利开发和设计， 在土耳其制造和组装”。 这听起来像是你直接联系制造商。 这是您的主要客户群吗？ Dobrowsky : 是的，大约80％的项目是我直接与管道生产 商交易，管道生产商带着他们不同的任务和我联系。 他们通 常是来自于中小型公司，向我提出各种问题。 例如，我设计 了一个四层十字模头，在三层管道外部添加螺旋彩色条纹， 寻找节省空间的解决方案，将单层管道生产线转换为三层管 道挤出生产线，并设计了一个可移动的十字头，这个模头具 有极宽的管径加工范围， 能够用来代替三个单独模头。 但你同样也为大型厂家工作？ Dobrowsky : 当然是的。像Simona和Wavin这样的大型管 道生产商是我的客户群的一部分。我与所有客户都签订了保 密协议。 项目和客户的多样性对我而言是令人兴奋的。我完成的 所有项目都使我能够不断完善我的技术知识，并掌握最新的 技术，这对提供完美的咨询服务是非常重要的。 在您的工程事务所的最初几年，您的大部分项目都是为机械工程 公司开展的，是吗？ Mister Dobrowsky, what are the changes the pipe extru- sion industry went through in the last 10 years? Josef Dobrowsky : In general one can say that the require- ments for pipes are constantly rising. Although standard pipes still find use as pressure or sewage pipes, the demand for spe- cial solutions gets more and more noticeable. Could you mention some examples? Dobrowsky : Special solutions come in various appearances. This can be standard pipes coated by one or multiple layers of special materials or multi-layer solutions. Pipes for potable water with a protective layer to prevent the intrusion of outside carbon hydride are just one example. Another example is pip- ing for geothermic use which has to be produced by rotating tools. Which kind of technique is required to produce pipes like that? Dobrowsky : The extruder is usually a standard extruder; the technical know-how shows in the pipe head. Depending on the utilization a multi-layer pipe head or a coating pipe head with a special radial or spiral distributor is needed. Right now I am concentrating on the topic of ‘rotating tools’ used for processes like the production of pipes with spiral ribbing. I also lectured on this topic at the AMI-Conference in Düsseldorf in April. Do you manufacture the extruders and dies yourself? Dobrowsky : I don’t. In the past 10 years I have established a close network of enterprises I cooperate with. I am the expert that visits the customer, examines the problem, counsels, un- dertakes the entire planning process, prepares the specifica- tion, monitors the construction and attends assembly and launch. Fabrication and assembly is done by my Turkish partner enterprise. There we also test the equipment before shipment. The main components are obtained from Europe to ensure quality. Therefore is my catchphrase, “Developed and engineer- ed in Austria, manufactured and assembled in Turkey”. That sounds like you have direct contact to the processor. Is that your main customer base? Dobrowsky : Yes, I transact approximately 80 % of my projects directly with the pipe producer, who approaches me with his in- dividual task. Often being small and medium-sized companies, who approach me with various questionings. I, for example, designed a four-layer cross head to apply a spiral color stripe in- side a three-layer pipe, found a space-saving solution to con- vert a single to a three layer pipe extrusion line and engineered a moveable cross head that is able to be used instead of three single heads with an extremely high range of pipe diameters. But you also work for the big players? Dobrowsky : Yes, of course. Big pipe producers like Simona und Wavin are part of my client base. I signed non-disclosure- agreements with all of my clients. The diversity of projects and clients is what makes my work ex- citing for me. All the projects I complete make me keep refining