Temperature, humidity and salt spray combined test chamber

Temperature humidity and corrosion cycling test

-Product name and model:

Equipment name: compound salt spray corrosion test machine, alternating salt spray corrosion test chamber circulating salt spray test chamber.

Model number: SM-F1300-CC

- Internal Volume of the test box : 1300L

- Test conditions: temperature range (RT+10 ~ 80)

Case note: the following data must be in the environment temperature 25 ℃, studio measured under the condition of no load,

According to the specific requirements of users, various non-standard alternating (composite) salt spray test cases can be customized.

- Main technical indicators

1.Temperature range: +15 ~ +60 degrees.

2.Humidity range: 45% ~ 98%RH.

3. Relative humidity deviation: +2 ~ -3%RH.

4. Temperature deviation: ±2℃

5. The temperature uniformity: 2 ℃ or less;

6. Temperature volatility: plus or minus 0.5 ℃

7. Temperature change rate: ≥0.5℃

8. Salt Spray Fall-Out Rates: 0.5~2.5mL/80cm2•h (adjustable)

9. Spray mode: pneumatic, continuous and intermittent spray can be adjusted freely.

10. Air pressure: 0.17 ~ 0.4mPa

11. Test continuous time: 999.9h/m/s (adjustable)

12. Volume of salt water tank: greater than 100L.

13. Internal load: greater than or equal to 50KG.

14. Test mode: fixed value and program test.

-The test satisfies the index.

1. Salt spray test: 15℃～50℃±2℃, Salt Spray Fall-Out Rates: 0.5~2.5mL/80cm2•h, test time can be set 999.9 h /M/S discontinuous or continuous, time can be controlled;

2. The drying temperature: room temperature ~ 50 ℃ ±2 ℃, relative humidity ≤50% RH or less time can be controlled (set)

3.Constant temperature and humidity: 40 ℃ ±2 ℃ humidity 93%RH (humidity deviation: + 2 ~-3% RH) time can be controlled (set)

4. low temperature placed, plus or minus 23 ℃±2 ℃ humidity 45% RH ~55% RH (humidity deviation: + 2 ~ -

3% RH) time can be controlled (set)

-Introduction to structural design:

1. The main structural components of this test box include: box body part, air duct part, electrical and control system, heating system, refrigeration system and pneumatic component system.

2.The whole equipment has beautiful appearance, reasonable structure, smooth lines and natural flow.The material inside and outside of the box is made of GRP and PVC sheet, which can withstand high temperature 100 degrees.The cover is made of high temperature resistant GRP plate, the surface is bright and bright, corrosion resistant, easy to clean, no leakage, good temperature resistance, high strength.All kinds of auxiliary accessories are also made of temperature-resistant and corrosion-resistant materials, and no electrochemical corrosion reaction will occur.

3. The box cover is designed to be about 120 degrees of optimum Angle, and the opening Angle is about 85 degrees, which can be clearly observed in the indoor test condition.The bevel Angle of the case can make the condensate produced in the test process do not drop to the sample to affect the test result.

4. The box cover and the box body by GRP material to reinforce the tester overall solid and carrying capacity, prevent salt fog spillover, which affect indoor and other equipment, test results and corrosion may even damage the test operators.

5. Spray system is tower or wall mounted spray device. The nozzle is made of pure acrylic material, which is durable and easy to install.The spray volume adopts the flow control valve and the compressed air to carry out the saturation treatment, to ensure the distribution of salt spray evenly, the settlement amount is adjusted freely, and effectively prevent the nozzle blocking phenomenon.

6. The air source can be compressed air and imported pneumatic components from Taiwan. The inlet pressure is less than 0.4 mpa to ensure the normal use.

7. The sample frame is designed according to the national standard, and the upper and lower layers should be tilted at 20 or plus or minus 5 degrees, and the hook method can be used to test the items from different angles.

8. The wind tunnel temperature cycle adopts the anti-corrosion long-axis fan motor, the corrosion resistant multi-wing centrifugal wind wheel, and the vertical diffusion cycle of the strength convection, so that the temperature and humidity in the laboratory are even and stable;

9.The evaporator and dehumidifier can meet the humidity requirements at different temperatures and do anti-corrosion treatment.

10.The test equipment is equipped with a quick exhaust device, which can be used to reduce the floating of salt spray and harm the human body and other metal devices.

11.Left and right sides of the equipment is equipped with 2 sets of start the synchronization of cylinder lid, at the end of the test, just a pneumatic button will open the lid gently, solved the heavy lid open inconvenience;

12.There are 4 PU movable casters at the bottom of the device so that the whole equipment can be moved to the designated position.

- Function Introduction

Salt fog environment

Continuous salt spray exposure test is widely used to test the corrosion resistance of surface coatings.Applications include industrial, maintenance, construction and ship coatings;Plating and painting layer;Aviation and military coatings, surface and components, electrical and electronic systems and components.

In this experiment, most of the corrosion test standards are generally run at high humidity, not included in the drying cycle and humidity cycling test;The test requires spray air to be preheated before entering the nozzle;The settlement of salt fog is maintained at: 1 ~ 2mL/80cm2 •h, which can be settled evenly and freely on each specimen surface.

Dry environment

During drying experiments, fan work, make indoor hot air circulation flow, and then into the box, at the same time equipment dehumidification system will be in the salt fog/moisture from outside the box, it can generate in low humidity conditions.Body temperature by the heater and air heater control box, 65 ℃ humidity 30% RH.

Constant temperature and humidity environment.

During the period of constant temperature and humidity function, heating humidifying through the bottom and make the relative temperature and humidity can be controlled in: temperature 40 ℃ + 2 ℃, humidity 93% RH (humidity deviation: + 2 ~ 3% RH);The humidifier, refrigeration system and dehumidification system of steam generator maintain the humidity set by PID intelligent control and automatic calculation to achieve the desired moisture and heat effect.

Cryogenic storage environment

Under the condition of this kind of environment temperature of 23 ℃ + 2 ℃, humidity 45% RH to 45% RH (humidity deviation: + 2 ~ -3% RH), heating system, cooling system and dehumidification system at this time all needs to open, produce low humidity environment, through the cold heat balance reaches the set temperature;

The ambient air pressure is standard atmospheric pressure.

Cooling system (the system is selected)

1. Compressor: fully enclosed taikang refrigeration compressor;

2. Refrigeration: mechanical refrigeration;

3. Condensation method: forced air cooling;

4. Refrigerant: the whole system adopts R404 environmental refrigerant.

5. The whole system pipeline is used for the test of ventilation pressure for 48H;France taikang refrigeration compressor.

6. Complete independence of heating, cooling, wet and hot and salt mist systems;

7. Internal spiral cold medium copper tube;

8.Built-in anti - corrosive titanium alloy evaporator to prevent corrosion.

- Heating system:

1. The inner groove is heated by a special high speed heating electric heater, which is resistant to corrosion, fast heating and uniform temperature distribution.

2. Completely independent system, do not affect freezing and control circuit.

-Humidification and dehumidification system:

1. Humidification and dehumidification are completely independent systems;

2. The water level control adopts mechanical floating ball control, the water level is more than 10mm under control, and there is a low water alarm device;.

3. The water supply system is automatically replenishing, which is suitable for the machine to run continuously for a long time.

- Measurement and control system:

1, the control device: touch programmable controller (HL - 1000), can run automatically, according to the set curve have R232 interface, connected to the PC can realize the test data record, record test data and curve and output function, Chinese/English interface can be connected to the computer, real-time monitoring and control, computer remote control card and USB interface is required (optional).The touch screen can realize the temperature, humidity, time, keyboard lock integrated control, with functions of dynamic display, can be salt fog test, dry environment, constant temperature and humidity environment and low temperature storage cycle of work, and achieve reset, reset, etc;

2. Temperature measurement sensor: imported PT100 A high precision sensor.

3. Components of French Schneider Schneider;

4. Taiwan AirTac pneumatic components;

5. The heating method adopts the solid output S S R + P I D automatic calculation function;

6 power outages, saturated barrels overtemperature protection: generally set temperature of 37 ℃ or 63 ℃, when more than one instrument set temperature 5 ℃, automatic cut off power supply equipment, stop running;

7. Test case, low water level and water loss protection: both the test case and the saturated barrel are equipped with liquid level switch to prevent water shortage from drying and causing equipment damage.

8. Power casing overtemperature protection: generally set temperature for 15 ~ 35 ℃ and 50 ℃, when more than one instrument set temperature 5 ℃, equipment automatically cut off the power and stop running;

9. Pressure regulator protection of compressed gas: ensure that the gas source is stable inside the test chamber and the gas is clean;

10. Test operation instruction: the control panel shall have test box running indicator light;

11. End instructions of the test: the control panel shall be equipped with the test end indicator light at the end of the test;

12. Non-fuse protection switch, low water level, leakage power automatic shutdown and other protection systems;

13. Super-temperature protection of the compressor: the refrigeration compressor is equipped with a high temperature sensitive package. When the temperature is too high, the equipment will automatically cut off or stop running.

To protect the equipment and the refrigeration system;

14. Overpressure protection of compressor: in order to prevent the stability of the power supply voltage, the electrical system is designed to protect the normal operation of the compressor, and it is equipped with a voltage overload protection device to operate effectively.

- With machine material.

1. Instruction manual, circuit diagram, qualification certificate, warranty card;

2. Basic parts for shipment.

- Standard configuration:

Special V sample frame;

Standard nozzle;

Standard collector;

Standard glass gauge cylinder;

Special tower or wall spray tower;

Salt spray hose;

Sodium chloride is pure.

- Equipment use conditions.

1. Ambient temperature: + 5 ℃ ~ + 28 ℃;

2. Environmental humidity: less than 85%;

3. Power requirements: AC380 (plus or minus 10%) V/50HZ;

4.Customer's own air source or air compressor.

- Daily maintenance.

1. If the test box is not used for more than five days, the solution must be poured out, and the whole studio sprayer should be cleaned and kept inside and outside.

2. The air pressure regulating valve shall be checked regularly.

3. After long-term use, restart the test, and check the electrical control system before the test, especially the temperature controller and time relay.

4. If it is found that the spray mouth dirt jam, can remove the nozzle, the use of alcohol, toluene or 1:1 hydrochloric acid cleaning, or with fine steel wire open, do not damage the nozzle lumen surface finish, so as not to affect the quality of the spray.

5.Please replace wet ball gauze regularly.

-Delivery instructions:

1.The goods will be delivered within 90 working days from the date of ordering.

2. The warranty period is two years, from the date of installation and acceptance.The supplier promises to provide spare parts for life.