Three major conditions for pouring three-dimensional flexible welding platform

Hebei Fengquan Machinery Manufacturing Co., Ltd. is located in Botou City, Hebei Province, with convenient transportation and a good location. It is engaged in casting, machining, and machine tool manufacturing; The company. Laifengquan Machinery has always been dedicated to the manufacturing of heavy equipment, striving to become one of the solution providers for large cast iron measuring tools, granite measuring tools, large machine tools, and mechanical manufacturing solutions.

The main measures to prevent hot cracking in pouring are to use high temperature discharge and low temperature pouring, and the principle of pouring speed from fast to slow. However, considering that lowering the pouring temperature may result in defects such as cold insulation and insufficient pouring for thin-walled parts, it is recommended to produce them according to the following methods based on the structural characteristics of the castings.

1. When pouring thin-walled and rod-shaped (wrench, connecting rod, pliers) castings, the pouring temperature of the molten steel should be controlled at around 1540C, and the temperature of the shell should be greater than 650C, which requires red shell pouring.

2. For castings with a wall thickness greater than 20 millimeters, the pouring temperature of the molten steel is chosen to be around 1530C, and the temperature of the mold shell is below 400C, even cold shell pouring can be used. This is beneficial for improving the crust strength of castings during the hot cracking danger period.

3. When encountering castings with uneven wall thickness, the pouring temperature of molten steel is set at 1540C. The temperature of the shell is around 400-500C, but the pouring method of fast first and then slow is strictly followed. After the casting is poured and the molten steel solidifies, the thick part of the shell should be cooled first to achieve uniform shrinkage of the casting. The above measures are taken for carbon steel castings that are prone to hot cracking. Stainless steel castings can refer to them, but the pouring temperature needs to be appropriately increased by about 30-60C.

The above is the relevant information that the editor has compiled for everyone. Please follow the center for more information;.