Salt spray chambers and cyclic corrosion chambers

This category includes our corrosion testing solutions:

Salt spray enclosures,

Cyclic corrosion chambers

and accessories for salt spray tests

All metal products or structures, all products consisting of metal parts are potentially subject to corrosion and must therefore have surface protection (surface treatment or painting, etc.).

These corrosion phenomena must be taken into account from the design of your products but also during production monitoring to ensure that the corrosion resistance properties of your products correspond both to your expectations but also to the use of the product.

Labomat Essor offers a complete range of salt spray chambers and cyclic corrosion chambers. Salt spray enclosures are also referred to by some users as salt spray enclosures, salt spray ovens, salt spray corrosion enclosures, salt spray test chamber, salt spray booth.

Cyclic corrosion chambers are also called cyclic corrosion chambers, salt spray climatic chambers, cyclic corrosion chamber, cyclic corrosion cabin, alternating corrosion chambers, etc.

What is a salt spray test?

The corrosion resistance of metal parts is often tested in continuous salt spray according to ISO 9227 or ASTM B117 for example. We can also cite the MIL STD 810 G, IEC 68-2-52, ISO 7253, ISO 3768, ISO 3769, ISO 3770, ISO 7253 ...

The purpose of the salt spray tests is to test in the laboratory the corrosion resistance of parts in a reproducible and comparable manner from one machine to another, from one laboratory to another.

The mist test consists of spraying a saline solution (whose composition for neutral salt mist according to ISO 9227 is an aqueous solution of 5% of Sodium Chloride) in the form of a mist inside a chamber whose temperature is regulated at 35 ° C. The parameters to be taken into account are obviously the chamber volume, its temperature stability and the reliability of the spraying. Entry-level enclosures often use a venturi effect spraying technique. It is the compressed air pressure which defines both the quantity of mist created as well as the homogeneity in the enclosure.

All the fog enclosures offered by Labomat Essor use a peristaltic pump to bring the saline solution to the nozzle. The saline solution then arrives in drop by drop to the spray nozzle with a constant flow rate which depends only on the speed of rotation of the peristaltic pump. Compressed air is sent to the nozzle to nebulize the drops of saline solution and thus create a salt mist. Depending on the air pressure used, the drops of salt spray will be larger or smaller. If the air pressure is too important, the drops will be too large and will fall close to the nozzle, if the pressure is well adjusted, a perfectly homogeneous salt spray will then be obtained which will completely fill the volume of the salt spray chamber. . The speed of the pump and the air pressure thus make it possible to independently adjust the quantity of salt mist created and its homogeneity in the chamber. This makes it possible to have a finer adjustment of the test and salt spray parameters and to widen the operating range of a machine compared to a venturi system.

In ISO 9227, various continuous salt spray tests are described: The neutral salt spray test (NSS Neutral Salt Spray): for example acetic salt spray (ASS Acetic Salt Spray) or cupro-acetic salt spray ( CASS Cupro Acetic Salt Spray). The machines are identical but the spray solution is modified to approach the conditions of use of the product. Indeed, the acetic fermentation of plant waste leads to the creation of acetic acid, the cupro-acetic environment is linked to the use of Bordeaux mixture in crops.

What is a cyclic corrosion chamber?

Even though salt spray enclosures are very frequently used in industry to validate the corrosion resistance of parts or structures, it is clear that salt spray tests are not very realistic tests.

The primary objective is mainly to validate a manufacturing process. Thus, many contractors ask that the parts follow a salt spray test (according to ISO9227 for example) for a defined period (500 hours for example) and then make an evaluation of the corrosion after this passage in salt spray. This makes it possible to quickly detect anomalies during the manufacturing process and prevent parts that are not sufficiently resistant to be placed on the market. However, manufacturers wanted to have more realistic tests than simple salt spray tests.

Thus, many cyclic test methods have been standardized to improve the realism of testing. These new types of tests require the use of cyclic corrosion chambers. Often developed on the initiative of automobile manufacturers (Renault ECC1, Peugeot TCAC, Nissan CCT, Volvo 1027, VDA 233-102, etc.), these methods aim to reproduce the actual conditions of use of a vehicle. For example, it can travel on a seaside road or on a road that has been salty in winter, can travel under a bright sun, can be parked in a garage or parking lot, can drive on a wet road ...

This is the reason why these cycles alternate phases of salt mist spraying, phases of drying, phases of saturated humidity or even of regulated humidity and sometimes also of freezing.

Which cylindrical salt spray and corrosion chambers are offered by Labomat Essor?

Labomat Essor offers 3 ranges of salt spray and cyclic corrosion chamber:

- The range of salt spray enclosures and Q-Lab cyclic corrosion enclosures with Q-FOG enclosures

- The Ascott range of salt spray chambers and cyclic corrosion chambers

- The TQC salt spray enclosure range

Q-Fog salt spray or cyclic corrosion chamber:

QFOG salt spray enclosures are high-end enclosures characterized by unparalleled build quality, reliability, ease of servicing and maintenance.

They are used to test heavy parts (up to 550 kg of parts in the enclosure). As standard, they have the possibility of recording all test parameters.

QFOG enclosures are available in 2 volumes: 600 and 1100 liters They are available in 3 performance levels:

- QFOG SSP: Salt spray and / or drying tests.

- QFOG CCT: Salt spray, drying and saturated humidity tests.

- QFOG CRH: Salt spray tests, drying, saturated humidity and regulated humidity.

The Ascott salt spray, or cyclic corrosion enclosures, are an excellent midrange.

These are speakers that are configurable according to your needs thanks to many options.

Ascott enclosures are available in the following sizes: 120, 450, 1000, 1300, 2000 and 2600 liters

They are available in different trim levels:

- SxxxIS models: Continuous salt spray chambers

- SxxxIP models: Salt spray chambers, drying and saturated humidity

- CCxxxIP models: Salt spray chambers, drying, saturated humidity and regulated humidity. (except 120 liters)

- Atmosfär models: Salt spray chambers, drying, saturated humidity and regulated humidity with an extended range…

Ascott also offers the CorroFlex super high capacity speaker line.

Finally, Labomat Essor also offers TQC salt spray enclosures.

These are entry-level speakers meeting the ISO 9227 standard but designed to meet the demand of customers on a limited budget. TQC enclosures are available in volumes of 100, 200, 450, 750, 1000 and 2000 liters.