Top Ten Points for Attention in Casting Hot Metal in Foundry!
The foundry uses an induction melting furnace to melt cast iron. The induction melting furnace is mainly used for smelting carbon steel, alloy steel, special steel, and can also be used for smelting and raising temperature of non-ferrous metals such as copper and aluminum. The equipment is small in size, light in weight, high in efficiency, low in power consumption, and fast in melting and heating. The temperature is easy to control, and the production efficiency is high.
1. Clear all obstacles in the passage and venue.
2. Check whether the ladle is dried, whether the bottom of the ladle, ears, levers, and handles are safe and reliable, and whether the rotating part is flexible. It is forbidden to use undried ladle.
3. All tools in contact with molten iron must be preheated to above 500°C before use, otherwise they are not allowed to be used. To
4. The molten iron should not exceed 80% of the volume of the molten iron ladle, and the ladle must be carried slowly and in a consistent pace to prevent the molten iron from splashing and hurting people.
5. Before lifting the molten iron by a crane, check whether the hooks and chains are reliable. The chains are not allowed to be knotted during lifting. Special personnel should be responsible for following the molten iron ladle, and there should be no people on the route.
6. Strictly implement the six no-pouring:
(1) The temperature of the molten iron is not enough to not pour;
(2) The grade of the molten iron is wrong or not poured;
(3) Do not block the slag and do not pour;
(4) The sand box is neither dry nor poured;
(5) Do not put the outer gate and do not pour;
(6) Do not pour the molten iron if it is not enough.
7. The casting must be accurate and stable, and it is not allowed to pour molten iron into the sand box from the riser and watch the molten iron.
8. When molten iron is poured into the sand mold, it is necessary to ignite the exhaust gas discharged from the steam hole, riser and box seam at any time to avoid poisonous gas and molten iron splashing and hurting people.
9. The remaining molten iron should be poured into the prepared iron mold or sand pit. It is not allowed to pour on the sand pile and the ground to prevent the molten iron from exploding and hurting people. The molten iron flowing on the ground due to fire running or other reasons shall not be covered with sand before it is solidified, and should be removed in time after solidification.
10. All equipment should be checked for safety and reliability before use, and cleaned up after use.