Forging processing precautions

1. The forging process is to cut the material to the required size, heating, forging, heat treatment, cleaning and inspection. In small manual forging, all these operations are carried out by several forgers overhand and underhand in a small place, exposed to the same harmful environment and occupational hazards; in large forging shops, the hazards vary with the different jobs. Medium-intensity physical labor, dry and hot microclimate environment, generating noise and vibration, and air contaminated by fumes.

2. Workers are exposed to both hot air and thermal radiation, resulting in heat accumulation in the body, heat plus metabolic heat, which can cause heat dissipation disorders and pathological changes. 8 hours The amount of sweating from the labor will vary with the small gas environment, physical exertion, and the degree of thermal adaptation generally between 1.5 to 5 liters, or even higher. In the forging shop near the heating furnace or drop hammer machine work point. Prone to salt deficiency and heat cramps. During the cold season, exposure to changes in the microclimate environment may facilitate its adaptation to some extent, but rapid and too frequent changes may constitute a health hazard. Forging production is carried out in a state of scorching metal heat (e.g. mild steel forging temperatures range from 1250 to 750°C), and burns can occur with carelessness due to the amount of manual labor involved.

　　The air in the workplace may contain soot, carbon monoxide, carbon dioxide, sulfur dioxide, or also acrolein, the concentration of which depends on the type of heating furnace fuel and the impurities contained, as well as the efficiency of combustion, airflow and ventilation conditions.

　　The equipment used in forging production, such as air hammers, steam hammers, friction presses, etc., work with impact forces. Equipment under such impact loads, itself prone to sudden damage (such as the sudden breakage of the forging hammer piston rod), and cause serious injury accidents. Noise and vibration: Type forging hammers will inevitably produce low frequency noise and vibration, but there may also be a certain high frequency component, the sound pressure level between 95 ~ 115 decibels. Exposure of workers to forging vibrations can cause pneumatic and functional disorders that can reduce work capacity and affect safety.