The principle and application of salt spray corrosion Test Chamber, the operation and selection method

overview

Salt spray corrosion Test Chamber, also known as salt spray Test Chamber, is a kind of equipment specially used to simulate the corrosion test of materials in salt spray environment. It simulates the long-term corrosion of materials in harsh environments in marine, chemical, and electronic industries by generating a certain concentration of salt water mist to test the corrosion resistance of materials.

The salt spray corrosion test box is mainly composed of a box body, a heating system, a spray system, a control system, a detection system and other parts. In the test, by controlling the spray system, the salt water mist is fully circulated in the box, so that the sample is exposed to the salt spray environment, so as to simulate the corrosion resistance of the material in the harsh environment. At the same time, the detection system can periodically detect the sample to understand the change of its corrosion resistance, such as the corrosion degree and quality change of the metal surface.

The principle and application operation and selection method of salt spray corrosion Test Chamber

working principle

The working principle of the salt spray corrosion Test Chamber is mainly to expose the sample to the salt spray environment by generating a certain concentration of salt water mist in the laboratory, simulating the long-term use of the material in harsh environments, so as to test the corrosion resistance of the material .

Specifically, the salt spray corrosion Test Chamber heats the water to a certain temperature through the heating system, and then sprays the water through the spray system to form fine mist droplets, and then distributes the mist droplets evenly in the Test Chamber through the airflow control system. In this state, the salt in the water will be brought into the air to form a certain concentration of salt water mist environment, so that the sample is exposed to the salt mist environment.

During the test, the surface of the sample is in contact with the salt water mist, which causes the metal ions on the surface of the sample to be dissolved, thereby causing corrosion. The detection system can periodically detect the sample to understand the change of its corrosion resistance, such as the corrosion degree and quality change of the metal surface.


The principle and application operation and selection method of salt spray corrosion Test Chamber

Application field

Salt spray corrosion Test Chambers are widely used in the following industries and fields:

Automobile industry: used for corrosion resistance test of auto parts, body and frame, such as body steel plate, wheel, engine, exhaust system, etc.

Electronics industry: used for corrosion resistance testing of electronic components, PCB boards, semiconductors, optical instruments and other products.

Electroplating industry: used for corrosion resistance test of electroplating and electroplating accessories.

Paint industry: used for corrosion resistance testing of coatings, spray paints, paint films, etc.

Ship industry: used for corrosion resistance test of ship parts, hull and marine equipment.

除此之外,盐雾腐蚀试验箱也可用于军工、航空航天、建筑等领域的耐腐蚀性能测试。综上所述,盐雾腐蚀试验箱在工业生产和科学研究中具有重要的应用价值。

The principle and application operation and selection method of salt spray corrosion Test Chamber

操作实例

以下是一般的盐雾腐蚀试验箱的操作流程:

  1. 预热:打开电源,预热箱体30分钟左右,使试验室温度稳定在设定的温度值。

  2. 加水:在试验室内部水箱中加入适量的纯水,然后将水加热至设定温度。

  3. 加盐:将纯盐加入试验室内部的盐水箱中,并将盐水搅拌均匀。

  4. 放置试样:将待测试的试样放入试验室内,注意试样之间的距离应保持一定的间隔,进而保证测试效果的准确性。

  5. 设定测试参数:According to测试需要,设定测试的时间、温度、盐雾浓度等参数。

  6. 启动测试:设定好测试参数后,启动盐雾腐蚀试验箱进行测试。在测试过程中,需要对测试过程进行监控,确保测试的准确性和安全性。

  7. 停止测试:测试结束后,关闭盐雾腐蚀试验箱,取出试样进行检测和分析。

  8. 综上所述,盐雾腐蚀试验箱的操作比较简单,但需要注意一些细节,如保持试样的干燥和清洁、避免试样之间的干扰、及时清洗试验室等。在操作过程中需要严格按照操作说明进行,确保测试结果的准确性和安全性。

The principle and application operation and selection method of the salt spray corrosion Test Chamber are fully illustrated in Figure 4

选型方法

选型时需要考虑以下几个方面:

测试要求:首先需要According to测试要求选择盐雾腐蚀试验箱的型号和参数。例如,需要测试的试样尺寸、测试时间、测试温度范围等。

产品品质:选择盐雾腐蚀试验箱的产品品质也很重要。选择品牌熟识、产品质量有保障的厂家和产品,可进而保证测试的准确性和可靠性,避免因为设备质量问题导致测试结果出现偏差。

价格:盐雾腐蚀试验箱的价格也是选择的重要考虑因素之一。需要According to自身的预算情况来选择适当的产品,避免过度投入。

厂家服务:选择具有完善的售后服务、技术支持和维修服务的厂家,可进而保证设备的使用效果和维护保养的顺畅性,降低设备维护成本和使用风险。

Other factors: There are other factors to consider in the salt spray corrosion Test Chamber, such as equipment volume, ease of operation, and ease of maintenance.

The principle and application operation and selection method of salt spray corrosion Test Chamber

common problem

Common salt spray corrosion Test Chamber problems mainly include the following aspects:

  1. Water droplets appear inside the salt spray corrosion Test Chamber: The water droplets appearing inside the Test Chamber may be due to the dew point caused by the change of ambient temperature. It is recommended to adjust the temperature of the Test Chamber and water temperature to a stable state, and reduce the ventilation inside the Test Chamber, or install dehumidification equipment.

  2. The salt spray corrosion Test Chamber is noisy: it may be due to the damage of the Test Chamber fan or dehumidification machine, it is recommended to check and replace.

  3. The cooling effect of the salt spray corrosion Test Chamber is not good: it may be due to the failure of the compressor, the leakage of the refrigerant or the decline in the cooling effect caused by untimely cleaning. It is recommended to check and repair.

  4. Deviations in the test results of the salt spray corrosion Test Chamber: it may be caused by inaccurate setting parameters of the Test Chamber, unclean environment inside the Test Chamber, or improper sample preparation. It is recommended to check and maintain the Test Chamber and reset the test Parameters and Specimen Preparation.

  5. Rust on the shell of the salt spray corrosion Test Chamber: it may be caused by untimely equipment maintenance or poor equipment material quality. It is recommended to perform equipment maintenance regularly and choose equipment with good material quality.


The working principle of the salt spray corrosion Test Chamber is to test the corrosion resistance of the material by simulating the salt spray environment and exposing the sample to the environment for corrosion tests. The salt spray corrosion Test Chamber is widely used in the corrosion resistance test of materials and products in the automobile, electronics, electroplating, paint, shipbuilding and other industries. It is a very important means of material performance testing.

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