Does welding emit infrared or ultraviolet light?

There are many hazardous factors in welding operation, which can produce ultraviolet rays, infrared rays, welding dust, manganese oxide, high temperature, carbon monoxide, nitrogen oxides and so on. Can lead to a variety of occupational diseases: 1) welder's pneumoconiosis: Long-term inhalation of high concentration of welding dust can cause chronic lung fibrosis, leading to welder's pneumoconiosis, with an average working age of 2 years. 2) Manganese poisoning: neurasthenia syndrome, autonomic nerve dysfunction, etc. 3) Electro-optic ophthalmia: foreign body sensation, burning, severe pain, photophobia, tears, eyelid spasm, etc. Studies at home and abroad show that the menstrual flow of electric welding female workers is increased, the cycle is shortened, the menstrual period is prolonged, the leucorrhea is increased, spontaneous abortion, premature delivery, dysmenorrhea and so on. Electric welding has a certain effect on male sperm development. It has been reported abroad that the secretion of sex hormones in electric welding workers changes and the quality of sperm decreases, but it has no effect on the sex ratio of offspring. The harm of electric welding can be completely prevented. First, it is necessary to strengthen ventilation; Second, when welding, you must wear a protective mask and a dust-proof and gas-proof mask; The third is to carry out occupational health examination every year.