Manual sand casting method

sand casting,casting

Advantages manual sand casting is that the low cost of sand , so you can easily modify the mold . Meanwhile you can punch , add cold iron and other ways to improve the process , improve the exhaust poor , etc., worked out a suitable pouring temperature and pouring time .

Manual sand casting method can be used to determine a reasonable trial production of the casting process and cost savings. Sand core , riser design theory and other process measures need to constantly change based on actual production . Reasonable measures based on improved technology and production results generated defects, get mature technology measures . Inexpensive relative to other casting methods modeling material , used in sand casting hand and easy to get , easy to manufacture molds for casting a single piece production, mass production and mass production can adapt , it can be used for product trial production in order mature determine a reasonable casting process.

After manual sand casting process improvements , resulting casting surface quality intact, no indented , shrinkage, cracks and other casting defects. So far, produced a total of more than 500 pieces , complete casting processed without any defects , after the hydrostatic test without leakage. Simultaneously. After the process improvement, saving steel 40 kg each , process yield of 75% , compared with 15% of the original process to improve the economic efficiency improved significantly.