The salt spray test machine is a corrosive test machine for testing products of Shanghai Linpin LRHS instrument. It is mainly used for surface treatment of various materials, including paint, electroplating, organic and inorganic film, anodizing, anti-rust oil, etc., although not There are other functions, but for this it is very good, and the latest version of the salt spray test machine in 2013 has added a lot of operational details. Let's take a look at how to use the salt spray test machine to improve the daily routine. Detection efficiency.
1. First of all, we need to know what is the neutral salt spray test: the neutral salt spray test is the most widely used accelerated corrosion test method in the earliest applications. It uses a 5% aqueous solution of sodium chloride solution, and the pH of the solution is adjusted to a neutral range (6-7) as a solution for spraying. The test temperature is taken at 35 ° C, and the sedimentation rate of the salt spray is required to be between 1 and 2 ml / 2000 px 2. h. To do a neutral salt spray test, we first need a device that causes the spray to occur, which is an external device that we must use for our salt spray test - the air compressor. Its function is to compress the air, introduce the air into the salt spray test chamber, and manufacture the gas source for the spray test.
2. After the salt spray test chamber is connected to the air compressor, it is also necessary to pay attention to a detail problem, that is, the air source of the tank is introduced, and we can see that there is a device called a water-oil separator. What role does this device play? It turns out that there are oil, water vapor, dust and other impurities in the air. The air compressor can't separate these impurities. If these impurities pass directly into the spray device of the salt spray test chamber through the air, the nozzle will be blocked for a long time. This will affect the accuracy of the salt spray test, so the oil-water separator will come in handy, and the air impurities passing through the device will be automatically filtered out to protect the nozzle.
3. Next, we connect the power supply to the salt spray test box. At this time, there will be three indicator lights on the operation panel indicator, which are two low water level lights and one low salt water indicator. This tells us the salt spray test box. There are three places where the water level is insufficient. We need to add water for testing. First, we should add pure water to the pressure tank (no impurities, it is not easy to block the nozzle, and the qualified unit can use distilled water) until the low water level lamp of the pressure tank is extinguished.
4. Then we need to add pure water to the salt spray test box, open the salt spray test box cover, and add pure water to the inside until the other low water level light goes out. There is also a place where salt water needs to be added. We need to configure the brine first. Shanghai Linpin LRHS Instrument Equipment Co., Ltd. will equip the customer with a 5000ml large barrel and two bottles of 500g sodium chloride. Generally do neutral salt spray test 5000ml of purified water to add 500g of sodium chloride (customer needs to be configured according to the standards of their own test materials), then stir evenly, open the reagent inlet and add brine. Note: It is necessary to add suitable pure water at the cover to avoid the salt mist gas running out.
5. Then we open the operation switch on the operation panel. At this time, the temperature indicator of the test room is on and the temperature indicator of the pressure tank is on. Here, because of the neutral salt spray test, these two parameters are set to 35 ° C and 47 ° C (generally before leaving the factory). Already set up, no need to transfer).
6, then start to set the relevant parameters of the spray, the customer according to the standard provisions of their own test materials, set the spray interval of the salt spray test chamber on the programming timer (spray time and no spray time setting function has been synthesized in the programming timer On a piece of instrument), set the total test time (using the time-of-day meter setting). After the test time is set, turn on the time switch and set the test time of the salt spray test chamber.
7. Finally, open the spray switch on the operation panel of the salt spray test chamber, and the salt spray test chamber can start the spray test. After the salt spray test is completed, the defogging switch is turned on, which can automatically remove the sealed salt mist gas inside the box (the exhaust port on the back of the box, the exhaust pipe is connected, and the nozzle is placed outdoors) to avoid corroding indoor objects.
Through the above seven forest spray frequency LRHS instruments for everyone to provide you with seven salt spray test machine operation tips, do you suddenly realize it? If you have other questions, please log on to Shanghai Linpin LRHS Instrument Equipment Co., Ltd. to view related technical articles, or call our company Telephone consultation with the after-sales department, regardless of whether your instrument is from Shanghai Linpin LRHS, Shanghai Linpin will try its best to answer your questions.
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