What is a shell core, and the purpose of the shell core machine of the shell core machine

The shell core is the core used in mold casting, commonly known as "mud core" and "core". It is used to form the internal cavity of the casting, which is often made of sand particles and binders (such as clay, tung oil or resin, etc.), and is made by hand or machine (such as core blowing machine, core shooting machine, etc.) in the core box. The core box is made of wood or metal.

The core generally needs to be dried, and the device is installed in the mold before casting, and after the molten metal is poured into the condensation, it is removed when the sand is discharged, and a cavity can be formed in the casting. In order to increase the strength of the core, a skeleton made of iron wire or cast iron is usually placed in the core, called "core bone" (commonly known as "mud core strand" or "core iron"). In metal mold casting, the core made of metal is commonly used, and it is removed in time after the metal solidifies.

When producing more complex castings (such as cylinder heads, etc.) in batches or in large quantities, the core is also used to form a casting mold, which is called "core molding". Extend.

The essential difference between the shell core machine and the core shooting machine is that the mold base of the shell core machine can be automatically turned over 180 degrees, and the uncured residual sand can be emptied to form the shell core. The core shooter does not flip. The shell core machine is generally used to make hollow cores, of course, it can be set up to make solid cores without flipping.

Core shooters are generally used to make cavities or solid cores for pouring. The middle fixed frame of the core shooter can be installed on both sides to fix the mold, and the left and right molds can be opened and closed, which is equivalent to a double mold base, and 2 sets of molds can be shot at a time. The shell core can only shoot one mold at a time.

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The concept of shell:

The so-called "round shell" is a special tool for compression.

The compression here is not the compression of the noisy tools we usually use RAR, ZIP, the compression of the shell refers to the compression of program files such as exe, com, and dll, and add a paragraph like a protective layer to the program, so that the original program file ** loses its original appearance, so as to protect the program from being illegally modified and decompiled, this section is like a protective layer, and the shell of animals and plants in nature has many similarities in function, so we call it the shell of the program figuratively.

The role of the shell:1Protects the program from unauthorized modification and decompilation.

2.The program is specially compressed to reduce the file size and facilitate distribution and storage.

The difference between shell and compression software for compression is:

Compression software can only compress crash programs.

The program files such as exe, com, and dll can run like normal programs after shell compression.

The shell core machine is a device that uses the hot core box process to make a coated sand shell core. Its working process is completed at the same time as sand filling and compaction, and immediately hardened in the hot core box, reducing labor intensity, flexible and light operation, easy to master, using electric heating, the temperature can be automatically controlled, and the working place is easy to keep clean, creating conditions for the mechanization and automation of the core making process. A cycle cycle takes only a few tens to tens of seconds to produce a sand core for casting.

The core made with the core shooter is precise in size and has a smooth surface. It is widely used in the foundry machinery industry.

1. High production efficiency: the working process of the shell core machine is completed at the same time as sand injection and compaction, and it is immediately preheated and hardened in the core box, and a cycle cycle only takes more than ten seconds to produce a sand core for casting.

2. The mold base is automatically turned over 180° to empty the remaining sand to form a shell core, which can save 40% of the coated sand.

3. Sand core: It can shoot sand cores of any complexity, and the size is accurate and the surface is smooth, so as to reduce the amount of casting processing.

Fourth, it can save a lot of auxiliary equipment and tools for core making, such as core oven, dryer, core bone, wax wire, etc.

5. Reduce labor intensity, flexible and simple operation, easy to use, use electric heating, temperature can be automatically controlled, and the working site is easy to keep clean, creating conditions for the mechanization and automation of the core making process.