Mould of aluminium alloy conductor casting and method for manufacturing aluminium alloy conductor casting
An aluminum alloy conductor and metal mold technology, which is applied in the field of metal mold low-pressure casting, can solve the problems of mechanical properties, electrical conductivity and compression test not meeting the requirements, many casting defects of castings, and low process yield. Achieve the effect of high pass rate of air tightness inspection, low production cost and high process yield
Active Publication Date: 2011-10-12
沈阳创新合金有限公司
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Problems solved by technology
[0002] Extra-large thick-walled aluminum alloy conductors for ultra-high-voltage transformers. In the initial stage of production, the parts were gravity-cast with resin sand molds. The yield rate of the process was low, and there
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[0025] The present invention will be described in detail below in conjunction with the drawings.
[0026] The schematic diagram of the mold structure of the present invention is as figure 2 , 3 As shown, the mold includes a metal mold and a sand core 5. The conductive plate with an octagonal independent distribution on the top of the metal mold is composed of an upper mold 7 and a metal core 11. The upper ends of the left mold 8 and the right mold 4 of the metal mold are respectively Contact with both ends of the upper mold 7; the upper mold 7, the metal core 11, the left mold 8 and the right mold 4 form a cavity in which a sand core 5 is installed; an exhaust rope is arranged in the vertical direction inside the sand core 5 10. The top end surface of the sand core 5 is installed with a cold iron 6; the lower ends of the left mold 8 and the right mold 4 are in contact with the bottom plate 9, and the bottom plate 9 is provided with an inlet 1 connected to the crucible riser pipe,...
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The invention provides a mould of an aluminium alloy conductor casting and a method for manufacturing an aluminium alloy conductor casting. A conductive plate independently distributed in an octagon shape at the top of a metal mould is composed of an upper mould and a metal core; the upper ends of a left mould and a right mould are contacted with the upper mould; parts of the metal mould form a cavity; a core is mounted in the cavity; an exhausting rope is arranged at the vertical direction inside the core; a chiller is mounted at the top of the core; the lower ends of the left mould and the right mould are contacted with a bottom plate; a leading-in hole connected with a crucible liquid lifting pipe is arranged on the bottom plate; a sprue located at the bottom of the core is connected to the leading-in hole; and an ingate is arranged on the sprue. The method comprises the following processing steps: smelting aluminium alloy, assembling the moulds, casting at low pressure, and takingout the castings. By utilizing the technical scheme of the invention, the operation of the method is simple, the method is convenient to control, and the technical product yield is high. The organization is dense; the acceptability of air tightness inspection is high; and the production cost is low.
Description
Technical field [0001] The invention relates to a metal mold low-pressure casting molding method, in particular to a mold for aluminum alloy conductor castings, and a method for preparing aluminum alloy conductor castings by using the mold. Background technique [0002] Extra-large thick-walled aluminum alloy conductors for ultra-high voltage transformers. In the early stage of production, the parts are made of resin sand gravity casting. The process yield is low, and there are many casting defects in the castings, resulting in failure of mechanical properties, electrical conductivity and compression tests; The production efficiency is not high and the production cost is high. Therefore, in view of the problem of low production qualification rate and productivity of the sand casting process, the low-pressure casting metal mold process is used to replace sand casting, which improves productivity and qualification rate and reduces production costs. This is the purpose of the prese...
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Inventor 于宝义陈学朋王峰李润霞教富川李强
Owner 沈阳创新合金有限公司