Services
Finishing.
Your contact person
Mr. Dieter Weber
Production management
Cold jet deburringIn this process the residual burr of the molded rubber part is mechanically removed or deburred with liquid nitrogen and the addition of granules in a radiation drum. Precisely defined and stored setting parameters, based on the geometry and other properties, are defined and electronically managed for each customer article.
MOLDED PARTS FINISHING
Finishing depending on requirement & use.
Depending on the requirements, area of application and geometry of the molded rubber part, Knorr & Macho GmbH implements different finishing techniques.
Cold jet deburringIn this method, the residual ridge of the rubber mould part using liquid nitrogen and the addition of granules will be removed in a radiation drum machine, and deburred. For every Customer's items will be defined precisely defined and stored setting parameters on the Basis of the Geometry and other properties, and electronically managed. The cold-jet deburring process is carried out between minus 20°C and minus 120°C.
We have two cold-jet deburring plants (nitrogen in connection with granules) of the brand MEWO, as well as a Drum, in which, e.g., rubber gaskets, rubber grommets or rubber bellows are treated exclusively with nitrogen.
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The cold jet deburring process is carried out between minus 20°C and minus 120°C. We have two cold jet deburring systems (nitrogen in connection with granulate) from the MEWO brand, as well as another drum system in which for example rubber seals, rubber grommets or rubber bellows are treated exclusively with nitrogen.
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Heat treatmentAs part of this process the elastomer, which has a mold structure that is still too soft for future use, is cured. By heating the corresponding chemical ingredients such as plasticizers, vapors, etc., which can affect the functionality of the molded part, are removed from the molded rubber part.
The annealing process is performed, depending on the specification of the raw material suppliers, with 1 to several hours between 100°C and 230°C.
The Knorr & Macho GmbH currently has two tempering oven.
Surface processing
For the processing of molded rubber parts surfaces on the basis of different requirement profiles, we cooperate for many years with the FUCHS LUBRITECH GmbH and provide you with a reliable partner with many years of experience and know-how for the following services.
- Lubricating varnish coating
- Anti-corrosion coating
- Phosphating and Oiling
- Cleaning
- Sand blasting
- Plasma activation