An aluminum alloy low-pressure casting device and method for timely supplying metal elements
A low-pressure casting and metal element technology, applied in the field of low-pressure casting, can solve the problems of reducing the mechanical properties and hardness values of aluminum alloy castings, and achieve the effect of improving production efficiency
Active Publication Date: 2021-06-22
南通电力设计院有限公司 +1
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Problems solved by technology
The decline of alloying element Mg and modifier Sr will also reduce the mechanical properties and hardness of aluminum alloy castings
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[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0033] Such as figure 1 — Figure 4As shown, the present invention discloses an aluminum alloy low-pressure casting device for replenishing metal elements in time, wherein the low-pressure casting device includes a pressure tank 1 with an opening and a workbench 3 with a cover arranged at the opening of the pressure tank 1, and the working The platform 3 and the pressure tank 1 form a closed chamber, and a holding furnace 2 is arranged in the chamber, and molten m...
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Abstract
The invention relates to the field of low-pressure casting, in particular to an aluminum alloy low-pressure casting device for timely supplying metal elements and a supply method thereof. It includes a frame and a motor fixed on the frame. A rotating shaft is installed on the motor shaft of the motor. The middle part of the rotating shaft is detachably covered with a reel, and the reel is fixed by fasteners. On the rotating shaft, a wire is wound on the unwinding reel, and the wire is Mg-Sr with a diameter of 3-5mm. The invention lies in: during the heat preservation process, the alloying element Mg and the modifier Sr are timely added into the heat preservation furnace through the metal element supply device, which can effectively make up for the deficiency of element decay in the aluminum alloy, and ensure the microalloying elements and the deterioration of the heat preservation process. The additive can regain the excellent modification and strengthening effect, improve the mechanical properties and hardness value of the alloy, and ensure the stability of product performance.
Description
technical field [0001] The invention relates to the field of low-pressure casting, in particular to an aluminum alloy low-pressure casting device for timely supplying metal elements and a supply method thereof. Background technique [0002] Low-pressure casting is widely used in the manufacturing industry, and cast aluminum alloy is the most commonly used raw material for low-pressure casting. Taking power fittings as an example, hypoeutectic or near-eutectic aluminum-silicon (Al-Si) alloys have excellent mechanical properties and formability, and have been widely used. However, the eutectic silicon phase of the as-cast aluminum-silicon alloy presents a needle-like distribution, which will greatly reduce the mechanical properties of the alloy, and requires modification and refinement by adding a modifier or a refiner. At present, the commonly used refiners and modifiers of aluminum-silicon alloys mainly include aluminum-boron (Al-B), aluminum-titanium-boron (Al-Ti-B), alumi...
Claims
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IPC IPC(8): B22D18/04C22C1/06C22C1/02
CPCB22D18/04C22C1/026C22C1/06
Inventor 宗强李龙芳林继兴李均张颖周世濂曹少华
Owner 南通电力设计院有限公司