Attention should be paid to the local forging process

1 forging process includes: the material is cut into required size, heating, forging, heat treatment,cleaning and inspection. In a small artificial forging, all these operations are carried out by several blacksmith overhand and underhand in narrow places. They are all exposed to the sameharmful environmental and occupational hazard; in large forging workshop, the harm with jobsvary. Aluminium alloy forging Fang said working conditions while the work condition is different depending on forging of different forms, but have some common characteristics: moderate intensity physical labor, the microclimate environment of dry heat, noise and vibration, airpollution from smoke.

2 workers were also exposed to high temperature air and heat radiation, cause heataccumulation in the body, heat plus metabolic heat, will cause the heat imbalance and pathological changes. 8 hours of labor amount of sweat will vary with the small gas environment,physical consumption and thermal adaptability degree varies in general 1.5~5 litres, or even higher. In smaller or more distant from the heat forging workshop, Behar's two index of heat stress is usually 55~95; but in large forging shop, close to the heating furnace or drop hammermachine work could be as high as 150~190. Easily lead to lack of salt and heat cramps.Aluminium alloy forging Fang remind in the cold season, exposure to small changes in climateenvironment may promote its adaptability to a certain extent, but the change quickly and too frequent, may constitute a hazard to health.

Atmospheric pollution: may contain smoke, carbon monoxide, carbon dioxide, sulfur dioxide asplaces in the air, or also contains acrolein, its concentration depends on the heating furnacetype and impurities, and the combustion efficiency, air flow and ventilation conditions.

Noise and vibration: forging Fang aluminum alloy called type hammer will produce low-frequencynoise and vibration, but there may also be some high frequency components, the sound pressure level at 95~115 db. Workers exposed to vibration may result in forging, temperamentand functional disorders, reduces work capacity and effect of safety.

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