Pressure casting process for lock

Abstract

The invention discloses a pressure casting process for a lock, which includes the steps: mounting a die; preheating the die; cleaning the die; spraying coatings on the die; placing the die on a die assembly device for die assembly; selecting injection pressure and filling speed; injecting liquid metal into a cavity and leading the cavity to be filled with the liquid metal; continuing injection under the action of an injection plunger until the liquid metal filled to a flow gate of the cavity is completely solidified; taking out a casting by opening the cavity after maintaining pressure; and cleaning the casting. The pressure casting process has the advantages that fine product quality is ensured, precision, strength and hardness are high, machining amount is small, large quantities of machining equipment and machining time are reduced, metal utilization rate is increased, both assembly time and the metal are saved, production efficiency is high, and mechanization and automation are easy to realize.

Description

Technical field: [0001] The invention relates to a lock pressure casting process. Background technique: [0002] Lock pressure casting is one of the most advanced metal forming methods. It is an effective way to achieve less chips and no chips. It is widely used and developed rapidly. At present, die-casting alloys are no longer limited to non-ferrous metals such as zinc, aluminum, magnesium and copper, and are gradually expanded to be used for die-casting cast iron and steel castings. However, the traditional lock die-casting method has disadvantages: poor product quality, precision, strength, hardness Low, large processing volume, increased a large number of processing equipment and man-hours, low production efficiency, difficult to achieve mechanization and automation. Invention content: [0003] The purpose of the present invention is to overcome the above disadvantages and provide a lock pressure casting process that ensures good product quality, high production effi...

AI Technical Summary

Problems solved by technology

At present, die-casting alloys are no longer limited to non-ferrous metals such as zinc, aluminum, magnesium and copper, and are gradually expanded to be used for die-casting cast iron and steel castings. However, the traditional lock die-casting method has disadvantages: poor product quality, precision, strength, hardness Low, large processing volume, increased a large number of processing equipment and man-hours, low production efficiency, difficult to achieve mechanization and automation