4. Pouring and casting
(1) The pouring worker should wear the factory uniform and wear the protective goggles.
(2) Carefully check the ladle, the lifting ring and the beam for cracks; whether the mechanical rotation and positioning locking device is sensitive, stable and reliable; the lining is strong and not tidal; the bottom-dipping stopper rod is sensitive to manipulation, and the plug and the sling are tight. Compliance, no steel leakage.
(3) The pouring channel should be dredged, no pits and unevenness, and no obstacles to prevent tripping. The size of the craft lifting frame should be suitable, so that the center of gravity is placed in the lower part of the collar after the pouring of the metal liquid, so as to prevent the ladle from tipping out of the lifting frame.
(4) Prepare the place where the molten metal liquid is treated and the ingot mold (sand bed or iron mold).
(5) When lifting the ladle filled with iron (steel) water, be careful not to damage the iron (steel) trough and cause the iron (steel) water to pour and splash. The pouring iron should not be too full, and should not exceed 80% of the volume to prevent spillage.
(6) The upper and lower boxes of the mold should be locked or added with the weight of the weight to prevent the box from being lifted and "running fire".
(7) In the pouring, when the molten metal in the mold reaches a certain height, it is necessary to induce air (ignition) in time to discharge the combustible and non-combustible gas in the mold.
(8) If a serious "bonfire" occurs during pouring, stop pouring immediately to avoid metal splattering and burns and fire.
(9) When casting a mold with harmful gas (such as water glass fluid sand, limestone sand, resin sand casting), special attention should be paid to ventilation to avoid poisoning