What are the hazards of flaw detection to the human body?

First of all, we all know that there are many types of flaw detection, such as X-ray flaw detection, ultrasonic flaw detection, etc. In fact, many medical methods believe that flaw detection is harmful to a certain extent. When operating, you need to wear protective clothing and protective gloves. You must take protective measures. It is best to be as far away as possible. In addition, non-destructive flaw detection in industry will generate radiation and even cause cancer. So what other hazards does flaw detection have on the human body? Let’s take a look together below!

1. NDT is a method of using radioactive sources to detect pipelines, construction works, and steel cylinders to see if they are sealed properly. It is also used to detect damaged points during maintenance. It requires specialized personnel to operate. Radioactive sources (radioactive cobalt or iridium, etc.) are used during the operation, and strict radiation protection measures must be taken. If the measures are not taken, exposure to radiation may cause nausea and vomiting at the mildest, or even cause DNA chain breaks in the body, damage the body's immune system, and induce cancer. Severely irradiated patients may die within 48 hours.

2. There are three things to do to protect against industrial radiation: (1) Distance protection: stay away from radiation sources when working. (2) Time protection: do not work for long periods of time. (3) Shielding protection: the working area should have effective shielding devices.

3. MT is less harmful, and the main harm is concentrated in the magnetic suspension. As long as the magnetic suspension is not a toxic substance, the harm can almost be ignored. If fluorescent magnetic powder is used, a black light, that is, an ultraviolet light, must be used. This light is harmful to the human body. Fluorescent magnetic powder is generally not often used in MT flaw detection in casting; dry magnetic powder is mainly dust pollution, which has a certain impact on the lungs.

4. PT is relatively harmful. The cleaning agent used is an aromatic hydrocarbon, a highly toxic chemical substance with a benzene ring structure. Long-term inhalation can cause symptoms such as chest tightness, vomiting, and dizziness.

From the above introduction, we know that NDT can cause many harms to the human body, and the degree of harm is relatively large, so it must be performed by professionals. In addition, protective measures must be taken during the operation to avoid unnecessary injuries.