Pressure casting mold applied to testing of hot cracking tendency and mechanical properties of rod casting

Abstract

The invention discloses a pressure casting mold applied to testing of a hot cracking tendency and mechanical properties of a rod casting. The pressure casting mold comprises an upper mold body and a lower mold body, wherein the upper mold body and the lower mold body are connected by a clamping connection mechanism; a base is disposed under the lower mold body; the base and the lower mold body areconnected by a support; two screw rods which are symmetrical relative to the position of the lower mold body are in rotatable connection to the upper surface of the base by a bearing, and threaded directions of the two screw rods are opposite; fixation blocks are symmetrically and fixedly connected on side walls, which turn backs to each other, of two sides of the upper mold body; ends, remote from the base, of the screw rods pass through the corresponding fixation blocks and extend upwards; the screw rods are in threaded connection with the fixation blocks; and outer side walls, close to thebase, of the two screw rods are fixedly sleeved by first bevel gears, respectively. The pressure casting mold disclosed by the invention has the beneficial effects that compacting adherence and dismounting separation between the upper mold body and the lower mold body are convenient; practicability is high; and the pressure casting mold is applicable to extensive promotion and use.

Description

technical field [0001] The invention relates to a die-casting device, in particular to a die-casting mold for testing the thermal cracking tendency and mechanical properties of rod-shaped castings. Background technique [0002] At present, the rod-shaped castings used to evaluate the thermodynamic properties of semi-solid aluminum alloys are produced by gravity casting instead of semi-solid die-casting. The ends of existing rod-shaped castings are spherical, which is prone to shrinkage defects. Disturbances in the thermodynamic evaluation of die-cast alloy rod-shaped castings. [0003] After searching, the Chinese patent authorization number is CN206763883U, which discloses a die-casting mold for testing the thermal cracking tendency and mechanical properties of rod-shaped castings, including an upper mold body, a lower mold body, and a slider assembly; the upper mold body There is an inner cavity between the lower mold body; the upper mold body is provided with a gate comm...

AI Technical Summary

Problems solved by technology

The die-casting mold used to test the thermal cracking tendency and mechanical properties of rod-shaped castings in the above-mentioned patent has the following disadvantages: it is inconvenient to press and fit between the upper mold body and the lower mold body, and it is inconvenient to disassemble and separate

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