Introduction and application of the most practical method of molding machine in modern casting

Introduction and application of the most practical method of molding machine in modern casting

What is the method introduction and application of the most practical molding machine in modern casting?

The main point of the molding method is the chemical color knot casting with the cold core box method. Vulcan tells this is the casting process of aluminum alloy cylinder block and cylinder head casting. The reason is that this method can cast the cylinder liner in the cylinder block. At the same time, it also has the advantage of using cold iron to achieve directional solidification. This method was used in the 1970s to cast near-net shape embroidery pieces and to use wet sand to cast knots with complex shapes that require additional cores. Now, when casting accurate castings with complex shapes and sizes, the standard method is to use the cold core box molding method. Moreover, it is suitable for more alloys than sand casting. It can be seen in the core-making operation that due to the innovation of resin chemistry and molding equipment, casting quality can be used at a lower price, and higher parts use liquid pumps and robotic automatic production lines.The equipment is further improved, and the required labor is reduced, which can be produced. High-quality, low-cost lure. The cold core box process molding machine is a major variant of the core making machine. Some molding machines mold the upper and lower molds at the same time, and some molding machines can produce the double-sided type of the double-sided mold. The third variant is to use two sets of molding machines, one set is the upper type, and the other is the lower type. .

In order to improve the accuracy and minimize the flash of the parting line, these molding machines are characterized by compacting the mold in the whole process.The large molding machine is completely driven by hydraulic pressure to smooth and reliable its movement. The operations of topcoating, drying, lower core, coating of adhesives and boxing, etc., due to these devices, can reduce the labor required and ensure the highest quality and production efficiency. This type of cold core box molding machine not only affects the quality of the casting surface and cleaning operations, but also affects the correct assembly of the core and the position where the core head makes the molding fluid fluidized in the shot blasting head. Design is very important.

Macler Assoc said that the cold core box molding machine has several sand-blasting techniques. Most of the molding machines, this type of molding machine, use low pressure and large air volume to shoot sand, which can be shot after each cycle. There are two or three machinery factories that do not fluidize the sand, but use the flushing method, using the patented sand design, low gas volume and high pressure sand injection.Some machinery factories believe that the extrusion method is used to manufacture complex Sand is also easy to flow when casting, these two techniques, it is best to use their own patterns for trial comparison and select the best method. "The cold core box molding method can produce complex castings with very accurate dimensions, but horizontal The cost and the cost of molding sand adhesive and catalyst are higher than those of sand and adhesive for warm sand molding, and the molding speed of cold core box molding method is low.