Liquid dosing solution Material supply Fluid injection ...

1 Fluid injectionLiquid dosing solutionMaterial supplyExtruder adaptionWith the help of a specific high-pressure-pump, according to the Endless-Piston-Principle, the Liquid dyes are injected to the polymer matrix with ho-mogeneous pump-sizes and discharge volumes as well as high chemical resi-stances ensure an optimal adjustment to the manufacturing process and the respective is a multifunctional tank system and is suitable for both filling and transporting viscous media, i. e. also the pumping and dosing of the aforementioned in downstream production system consists of two compo- nents which together result in a unique logistics and production principle with flexible reusability integrated dosing pump medium processing possible through circulation further functions (tempe-ring, dehydration, etc.)

2 Control-Module can be removed without tools configuration unit simple handling data exchange with tank module data exchange with external controlsTankDosing-PumpTank-ModuleContro l-ModuleThe adaption of the system takes place in the area of plasticization, at the point where the polymer has already melted by min. 80 to 90 %. Here, the best results concerning the color homogenization could be achieved. Furthermore you have the advantage of a fast color change and the cleaning effort is reduced. In this area the pressure conditions are managerable (depending on the screw configuration and the polymer between 20 and 120 bar).

3 The adaption is made individually, depending on the type and the configuration of the it is yellow, red, green or blue: giving synthetic filaments a homoge-nous color by extrusion is not an easy task and this has been the case for a very long rational alternative is the coloration of fibers with Liquid dyes. The amount of additional Material to the base Material can be considerably reduced,because Liquid dyes are higher concentrated and needs therefore less carrier Material . Therefore ViscoTec provides a complete system and an approved solution :We have developed a Liquid Material handling system for the melt spinning process which combines the advantages of Liquid materials with the advantages of standard plasticization.

4 The main idea of most importance is that the color is not applied to the plastic until it is Liquid . This doesn t only save time, energy and costs on Material changes, it also separates the melting operation from the coloration process and thus allows a very constant metering process with full supply : The ViscoTainer system provides the Material supply for the high pressure special highlight is that the user won t come into contact with the medium!Plasticization areaAnd this technology allows the saving of millionsof liters of fresh water - year by year,compared to dye over a water : less fiber breaks higher process liability lower insertion of foreign Material fast cleaningAdvantages: constant flow - no pulsation variable flow rate repeatable metering also with fluctuations in pressure, temperature and viscosity sheare-sensitive media and media with solids are hardly stressed because of low friction very good particle distribution in melt mass Liquid dyes valveless technology high chemical resistance due to appropriate elastomersAdvantages.

5 Consistant distribution of the media in the polymer matrix constant volumetrical metering independent of the melting pressure fast switching to other media possible (e. g. color change) easier cleaning of the extruder possible applications: - Liquid dyes - heat stabilizers - additives - dispersions (e. g. suspensions of nano particles) Material supplyFluid injectionExtruder adaptionOur solution consists of:Is your medium highly viscous, shear-sensitive, sticky, abrasive or does it contain solids? The reproducibility of all parameters is crucial to the dosing of high-viscosity products. Changes in product flow behaviour and viscosity are further important considerations.

6 The easy adapta-tion to new ambient conditions and requirements must also be ensured. ViscoTec has the perfect solution when it comes to dosing and conveying high-viscosity media!Endless-Piston-PrincipleViscoTec Endless-Piston-Principle:Imagine a even better, imagine several pistons placed in a we reduce the wall thickness of the piston to slightly change the form of the piston. This is the Endless-Piston-Principle! Gentle procedure Pulsation-free dosing and medium flow The dosing volume/volumetric capacity is not influenced by the counter-pressure The dosing volume is infinitely variable Good priming behaviour Can be used in forward and backward direction Dosage precision +/- 1% Liquid dosing solution for themelt spinning process to produce synthetic dosed!

7 About ViscoTecContactViscoTec mainly produces systems for delivering, dosing , filling and extracting middle and highly viscous media. You will be profoundly advised for any kind of application and in case of very difficult tasks comprehensive tests will be Pumpen- und Dosiertechnik GmbH was founded in 1997 and succeeded from the former field of pump technology of Resch Maschinen-bau GmbH. 60 employees having almost many years of know-how produce sophisticated solutions for the world piston principle Pulsation-free dosing and conveying Suitable for forward and reverse operation Good suction capability Gentle operation Counterpressure has no effect on dosing quantity / flow rate dosing accuracy to +/- 1% Fully adjustable dosing quantity No dead spaces inside the pump A hermetically enclosed flexible shaft instead of joints inside the pumpOur dosing technology your advantage At the core of every application is a volumetric conveying dosing pump.

8 Which belongs to the group of rotary positive displacement pumps. The interaction between an eccentrically moving rotor and a stator, adapted to application conditions, produces flow and do-sing characteristics resembling those of an endlessly moving piston. This geometry ensures that, per rotation, a constant flow volume proportional to rotary angle is always produced. ViscoTec Pumpen - u. Dosiertechnik GmbHAmperstra e 484513 T ging am Inn - GermanyTel. + 49 (0) 8631/ 393- 400 Fax + 49 (0) 8631/ 393-500mail@ |