Alloy steel castings in the casting process, the need for their technical requirements is very high, in the production process, if it requires a lot of production, the factory should use advanced technology modeling and core method, so that it can be effective to a certain extent Increase the production of its production.
Requirements for small and medium-sized alloy steel castings
For the small alloy steel castings, in the process of production, it is possible to use the vertical type or horizontal type boxless high pressure molding machine production line. The solid type production has high production efficiency, and the floor area is also small. Choose all kinds of box high pressure molding machine production line, air punch molding line to meet the requirements of fast, high-precision molding production line, core-making methods can be used: cold box, hot box, shell core and other efficient core making methods.
Requirements for large alloy steel castings
During the operation, for large batches of large-scale products during casting, to a certain extent, the application of resin self-hardening sand molding and core formation can be considered, and heavy-duty castings with small batches of production are used. Manual molding is still an important method. Modeling can adapt to a variety of complex requirements more flexible, does not require a lot of process equipment. Water glass sand type, VRH water glass sand type, organic ester water glass self-hardening sand type, clay dry type, resin self-hardening sand type and cement sand type, etc. can be applied. For the heavy alloy castings produced in one-piece production, the cost of pit modeling is used. Low, put into production quickly.
The quality of alloy steel castings includes the quality of use, quality of connotation, and appearance quality.
1. The use of quality refers to the durability of alloy steel castings under different conditions, including wear resistance, corrosion resistance, resistance to chilled heat, fatigue, shock absorption and other functions and machinability, weldability and other technological functions.
2. The connotation quality mainly refers to the metallographic arrangement of the casting and the holes, cracks, noisies, segregation, etc. that exist inside the casting.
3. Appearance quality refers to the casting surface roughness, scale error, shape error and so on.http://www.dmgcastings.com/