Squeeze casting machine and squeeze casting method thereof

Abstract

The invention provides a squeeze casting machine, which comprises a base, a mold closing and locking mechanism, an injection mechanism and a hydraulic control system, wherein the mold closing and locking mechanism comprises a static mold, a movable mold, a main cylinder and a main cylinder piston rod; a seal safety belt is arranged in a seal matching structure between the static mold and the movable mold; the mold closing and locking mechanism comprises a monitoring control device which is used for monitoring a distance between the static mold and the movable mold and ensures that the static mold and the movable mold have a safe distance in the seal safety belt; and the hydraulic control system comprises a main cylinder feeding oil path which ensures that the movable mold and the static mold are driven by the main cylinder and completely closed after injection mold filling of the injection mechanism is completed. The squeeze feeding pressure is about 5 to 10 times that of the conventional casting injection pressure. The squeeze casting machine can realize 'common casting mold filling, squeeze casting and feeding' which is remarkably superior to 'common casting mold filling, high-speed punch squeeze' of the conventional casting machine.

Description

technical field [0001] The invention relates to the technical field of die-casting machines, more specifically, to a squeeze die-casting machine which significantly improves the performance of castings and a squeeze die-casting method of the machine. Background technique [0002] With the continuous development of die-casting technology, higher requirements are put forward for the mechanical properties, complex procedures, and appearance of castings. In die-casting, especially for large-scale die-castings, there are more molten metals in the mold cavity. , relatively prone to shrinkage and porosity. Although there is a pressurization process in the die-casting process, for large castings, the molten metal in the thick part of the cavity accumulates more heat, so the solidification of the molten metal in this part will be slower than The other parts are slow, the surrounding parts close to the cavity wall are solidified first, and a closed liquid pool is formed in the central...

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to provide a squeeze die-casting machine and a squeeze die-casting method aiming at the ubiquitous airtightness quality problems of ordinary die-casting and traditional squeeze-casting (liquid die forging), so as to solve the problems existing in traditional die-casting and vacuum die-casting technologies. Shrinkage cavity, porosity, eliminate various shrinkage defects, improve the compactness of castings, and make the product quality better

Images