CORROSIONBOX
Vertical space saving test chambers with large glass front door for salt spray, condenstation tests and cyclic corrorrosion tests.
1. Corrosionbox improves comparison with outdoor results
Worldwide, materials used by manufacturing industry are exposed to natural or industrial corrosion in shape of salt fog, humidity, smoke and vehicle exhaust. Laboratory corrosion tests are used extensively for selection of materials and their surface protection.
Corrosionbox chambers are what you need to predict corrosion resistance of materials such as paints and coatings.
2. National and international Standards
In order to generate reliable and comparable results, a large number of test methods and international standards have been developed and are relied upon as reference for test execution.
Most popular tests:
| Basic models |
|
| Enhanced models |
50180 method A1/A2/A3 AS 2331 method 3 ASTM B117 ASTM B287 ASTM B368 ASTM D1735 ASTM D2247 ASTM G85 A1 BS 3900/F12 BS 3900/F4 BS 3900/F9 BS 5466 Part 1/2/3 | BS 7479 BS EN 60068-2-11 BS EN ISO 7253 BS 2011 Part 2.1 D17 1058 DEF 1053 METH 24 EF 1053 METH 36 DIN 40046 DIN 50 017-KK DIN 50021 DIN 50907 DIN 50958 DIN 53167 | DIN 55991 ECCA T8 FLTM BI 103-01 GM4298P GM4465P IEC 60068-2-11 JIS H 8502 Meth1/2/3 JIS Z 2371 JNS 30.16.03 ISO 11503 ISO 1456 ISO 3768 | ISO 3769 ISO 3770 ISO 4541 ISO 6270 ISO 7253 ISO 9227 MIL-STD-202 NFT 30-077 NFX 41-002 RES.30.CT.117 SIS 184 190 VG 95 210 | ASTM G43 ASTM G85 A3 DEF 1053 METH 36 RES.30.CT.119 DIN 50907 DRY MIL-STD-810 UNI 9399 UNI 9590 UNICHIM 652 UNICHIM 741 PROHESION ASTM G85 /A5 |
3. Salt spray test
A corrosive solution is turned into a vapour mist through a nozzle located in the centre of the chamber. A fog diffusing tower distributes the fog over the entire test zone. The compressed air required for fog production is heated and saturated with moisture in a pressurized humidifier before it reaches the nozzle.
One or more heating elements, depending on chamber capacity, ensure uniform temperature in the test chamber. Exhaust solution collected in the bottom of test chamber is drained away through a drain to the floor.
Salt spray test can be executed with all chamber models.
4. Condensation water test
Test chamber bottom is filled with demineralised water. Water is heated and evaporates condensing on the surface of samples. Chamber temperature is 40 °C.
Continuous condensation test can be executed with all chamber models.
5. Cyclic corrosion test
A large number of cyclic corrosion tests are made possible by combining salt spray environment with condensation humidity and air drying . Cyclic corrosion testing has become increasingly necessary in recent years. Dry Corrosion is one of the most popular cyclic tests alternating salt spray and air drying.
Cyclic tests can be executed with all enhanced model chambers. Depending on cycle-type some options have to be installed during chamber manufacturing.
6. Chamber Design
Chamber structure is overall 10mm thick Polypropylene. Option in PPS plastics to meet CSA flame test. Test chamber is insulated with a double wall. Access to the test chamber is made through a window glass door.
Control panel and all necessary control devices are on the right side in ergonomic position. The Salt solution storage tank is on the left side.
The electrical board is completely enclosed in a dedicated zone: next to it we find the electro-valves, humidifier and salt solution dosing pump zone. Each part is of easy access for simple and fast maintenance.
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7. Cyclic test options
Enhanced model control panel allows easy programming of cyclic test combining: Salt spray, Water condensation, Dry off and Ambient condition. To perform cycling the test chamber must be completed with the following optional parts:
Option for Dry Corrosion, Scab Corrosion cycle. An air heater is installed to heat purging air before introducing it in the test chamber and a Titanium panel on the bottom of test chamber turns a flooded bottom into a dry bottom. Only a dry chamber bottom allows fast drying of the samples.
Option for ASTM G85-98 annex 5 Prohesion. In addition to parts installed for dry corrosion a bypass is installed on the humidifier to meet standard requirements with respect to fog production.
Option for ASTM G85-98 annex 4 salt/SO2 spray testing. An external SO2 dosing system is supplied and a gas diffusing device is installed in the test chamber.
Features / Models | basic | enhanced |
Strong structure overall 10mm thick polypropylene construction with built-in salt solution reservoir. | yes | yes |
Access to test chamber with pivoting cover with water seal. | yes | yes |
Complete Spray nozzle made in plastic material, suitable for ISO 9227 AASS and CASS tests. | yes | yes |
Fog diffuser in the centre of the test chamber allows fog uniformity. | yes | yes |
Complete rain gauge (fog collector). | yes | yes |
Rain gauges system with readings located outside of chamber. | yes | yes |
Humidifying tower with automatic water level restoring system and temperature-controlled water heater. | yes | yes |
Peristaltic pump for salt solution dosage. | yes | yes |
Ergonomic control panel. | yes | yes |
Pressure regulator for control of nozzle air pressure. | yes | yes |
Pressure gauge for display of nozzle air pressure. | yes | no |
Digital temperature controller of test chamber temperature. | yes | no |
Instrument for temperature calibration. | yes | yes |
Timer to set test duration, programmable up to 9999 hours, with stopping of all functions at test end. | yes | no |
Pilot lamp to signal lack of salt solution. | yes | no |
Microprocessor control panel. Test status continuously displayed on a large LCD with 4 lines display for test parameters and program menu. | no | yes |
Free programming, up to 15 different test programs, input via keyboard with soft keys and tactile feedback. | no | yes |
Self-diagnostic, routine service reminders including warning messages and safety shut down. | no | yes |
Complete test report: chamber test temperature, humidifier temperature, air nozzle pressure, dosing pump RPH are periodically measured and saved in the controller memory, and by simply pressing a key you can print a complete report of the test. |
no |
yes |
Data transfer via RS232-C serial interface. | no | yes |
Air and water filter to be installed on supply lines. | yes | yes |
Rod bars and standard specimen holders supplied. | yes | yes |
Technical data / Models | 600l basic / enhanced | 1000l basic / enhanced |
Physical dimensions |
|
|
Overall dimensions (mm) | 1320 x 780 x 1450 (WxDxH) | 1640 x 880 x 1800 (W x D x H) |
Test chamber internal dimensions (without dome area) (mm) | 800 x 700 x 800 (WxDxH) | 1100 x 800 x 1140 (W x D x H) |
Test chamber volume (without dome area) (litres) | 448 | 1000 |
Weight (Kg) | 168 | 300 |
Salt solution reservoir capacity (litres) | 110 | 260 |
Electrical supply |
|
|
Type of connection |
| 1/N/PE |
Voltage (V) |
| 230 +- 10 % 50 Hz |
Current consumption (A) | 9 | 14 |
Water supply for humidifier |
|
|
Type of water | demineralised | |
Water pressure (bar) | 2-4 | |
Water consumption (approximate) (litres/day) | 3 | |
Air supply |
| |
Type of air | Filtered, oil free | |
Air pressure (bar) | 4-6 | |
Air consumption (approximate) (Nm3/h) | 5-8 | |
Temperature range |
| |
Test chamber temperature range (°C) | Ambient to 55 | |
Humidifier temperature range (°C) | Ambient to 70 | |
Supplied accessories |
|
|
Rod bars | 4 | 6 |
Test panel racks specimen holder | 3 | 4 |
Air filter and pipe (4 m) | yes | yes |
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