Impregnating

Brief technical description:

• Impregnation with special artificial resins is a process used to seal sintered moulded parts. In a vacuum, the resins enter the porous, sponge-like structures. Here they harden to form a mass which is both highly chemically resistant and resistant to pressure. Impregnation is the most important step when coating the surface of sintered moulded parts. Coating is not possible without first sealing. This is particularly true of the pore structure close to the surface of the component. A large range of alloys on ferrous or non-ferrous base materials can be impregnated.

Advantages:

• Impregnated components show very positive qualities during subsequent mechanical processing:
• machining is facilitated,
• the service life of the tools is considerably increased.
• Bleed-out, the dreaded leakage of fluids from the component after processing, can be totally avoided by using the impregnation method.

Please note:

• Sinter surface solutions (please link) offer a completely new, optimally adjusted, two-step process. (impregnation + surface finishing in a single process)

Fields of application:

• Sintered moulded parts for various applications:
• Automotive (components for engines, gearboxes, brakes, exhaust systems, shock absorbers, valves, etc.)
• Electrical industry (housings, plugs, contacts, etc.)
• Mechanical and plant engineering (cog wheels, chains, etc.)