Corrosion Preventives
Corrosion protection for metals
Unprotected bare metal surfaces lose corrosion, in particular oxidation, which often produces a considerable amount of work surface condition.
This is not only a deterioration of the appearance, but often also an impairment of proper function connected.
The extent of corrosion depends essentially on:
- the composition and pretreatment of the materials (particularly corrosive, e.g. malleable or gray cast iron)
- the surface quality of the workpiece (corrosive attack is faster on rough surfaces than on smooth surfaces)
- climatic influences
- other external influences
Corrosion inhibitors such as ANTICORIT from FUCHS serve to protect metallic surfaces against the effects of the atmosphere in the broadest sense and thus prevent the transformation of the metals into their compounds, in particular oxides.
Basically, a distinction can be made between permanent corrosion protection and temporary corrosion protection.
Permanent corrosion protection offer e.g. paint, galvanic coatings and enamels.
These are difficult to remove by mechanical or special chemical processes. This is often not possible without altering or damaging the metallic surfaces.
ANTICORIT products belong to the group of temporary corrosion inhibitors.
They can be removed relatively easily by solvents or suitable industrial cleaners without damaging the surfaces to be protected.
It is important that corrosion protection generally has to be optimally compatible with the previous process steps and the products used there.
Our recommendation: the compatible ANTICORIT corrosion inhibitors from the comprehensive corrosion protection program from FUCHS.
Selection criteria for corrosion protection products
The relativ large number of ANTICORIT corrosion protection products results from the very different technical requirements.
The following table gives a short overview of the main aspects concerning the choice of the right corrosion preventive for a specific application.
| aspects | criteria | to note: |
|---|---|---|
| Protection period | weeks, months, years | The protection periods have to be considered with full knowledge of the storage facilities, means of transportation and the packaging. |
| Type of film | oily, oily-thixotropic, greasy, wax-like, paint-like | Draining properties, grip, dust suppression, slickness, compatibility with packaging, stickiness. |
| Application method | brush, immersion, spray, drip | Surface geometry, size of the parts, individual parts or bulk series, dimensions and space, film thickness control, issue of solvents. |
| State of the parts during application | dry, humid, wet, cleanliness, temperature, movement | Dewatering, compatibility with the lubricants used in the preceding forming process, cycle, throughput speeds. |
| Further processing | machining, forming, surface treatment, assembly | Adhesion in collet chucks, forming lubrication, weldability, emergency lubrication, compatibility with lubricants. |
| Removal | wiping, aqueous alkaline cleaners, aqueous neutral cleaners, aqueous acicic cleaners, solvents - liquid, solvents - vapour phase | Normally, the higher the protection effect the more difficult the removal. |
| Storage conditions | cleanliness, transportability, stackability, touchability, measurability and testability, appearance | The storage conditions are to be defined and complied, with using clear criteria, in order to achieve optimum protection effect. |
| Transportation | overland transportation within the company, transportation by sea and tranportation by air | A high air humidity and climatic conditions falling below the dew point have an influence on the protection period. |
| Economic efficiency | landed costs, economy in use, application costs, removal costs, degree of damage through potential complaints | Only the total of all costs is a measure of the economic efficiency. |
ANTICORIT Dewatering Test Set
For users of water displacing corrosion protection products, who do not have laboratory capacity or in-depth knowledge of monitoring solvent-based corrosion protection baths or systems, the easy-to-use ANTICORIT Dewatering Test Set is available in a case.
The case is designed to allow easy monitoring of various important parameters of a corrosion protection bath without having to invest in expensive laboratory equipment. With the help of the case and the instructions contained in it, the concentration of the film-forming component in the solvent, the water displacement capacity or the demulsification behaviour can be determined, among other things.
With the enclosed detailed instructions, the tests can be carried out easily and quickly without any special previous knowledge and the results documented. Request more information via e-mail to industrie-flg@fuchs.com!
Experience a new, innovative cavity conservation in practice. ANTICORIT CPX®.
The solvent-free high-performance anti-corrosion waxes of the ANTICORIT CPX® series dry at ambient temperature and provide an almost transparent protective film at low film thicknesses.
This makes application simple and straightforward. A dry, non-slip but flexible protective film at low temperatures, which is temperature-stable even at higher temperatures, provides excellent corrosion protection.