1. Forging process is to cut the material into the required size, heating, forging, heat treatment, cleaning and inspection. In small-scale artificial forging, all of these operations are performed by a number of forging and operating in a small place, exposed to the same harmful environment and occupational hazards; In the large-scale forging workshop, the hazards vary with the jobs. Medium-Strength manual labor, dry and hot microclimate environment, generate noise and vibration, air pollution by smoke.
2. Workers exposed to high temperature air and heat radiation, resulting in the accumulation of heat in the body, heat and metabolic heat, can cause heat loss and pathological changes. The perspiration amount of 8 hours will vary with the small gas environment, physical exertion and thermal adaptability of 1.5~5 Ascending, or even higher. The working point of the forging workshop near the heating furnace or the drop hammer machine. It is easy to cause salt deficiency and heat spasm. In the cold season, the changes exposed to the microclimate environment may promote their adaptability to some extent, but rapid and frequent changes may constitute a health hazard. Forging production is carried out in a metal-hot state (such as a low carbon steel forging temperature range between 1250~750℃), due to a large number of manual labor, slightly careless may occur burns.
The air in the workplace may contain soot, carbon monoxide, carbon dioxide, sulphur dioxide, or propylene aldehyde, depending on the type and impurity of the heating furnace fuel, as well as the combustion efficiency, airflow and ventilation conditions.
The equipment used in forging production, such as Air hammer, steam hammer and friction press, is the impact force of the work. When the equipment is subjected to this kind of impact load, itself is prone to sudden damage (such as a sudden break of the piston rod of the hammer), causing serious injury accidents. Noise and Vibration: The type of hammer is bound to produce low frequency noise and vibration, but there may be a certain high-frequency components, the sound pressure level between 95~115 decibels. Staff exposed to forging vibration, may cause temperament and functional imbalance, will reduce the working capacity and affect safety.