CN2605945Y

CN2605945Y - Diecasting smelting furnace with gravity mix

Info

Publication number: CN2605945Y
Application number: CN 03203644
Authority: CN
Inventors: 林利坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-02-08
Filing date: 2003-02-08
Publication date: 2004-03-10
Anticipated expiration: 2013-02-08

Abstract

Disclosed is a gravity-agitated die-casting furnace. An extrusion mechanism is provided on the die-casting furnace and connected with an injection pipe through which to inject the molten metal into a die of a main casting machine; also, an injection port is provided on the die-casting furnace. Wherein the die-casting furnace consists of at least two melting furnaces. The two melting furnaces are arranged orderly from high to low; a valve and a filter screen are provided between the two melting furnaces; the extrusion mechanism is arranged at the lowest melting furnace; the injection port is arranged at the highest melting furnace. When the molten metal flows from the highest melting furnace to the lowest melting furnace, the gravity flow can produce a mixture of the disturbed flow in nature, thereby the molten metal can evenly mixed and ejaculated to obtain a better quantity of product which is proposed by the gravity-agitated die-casting furnace of the utility model.

Description

The Smelting furnace for pressure casting that gravity stirs

Technical field

The utility model relates to the Smelting furnace for pressure casting that a kind of gravity stirs, especially a kind ofly form by at least two crystal growing furnaces, in the time of can making metallic solution flow into the crystal growing furnace of extreme lower position by the crystal growing furnace of extreme higher position, naturally produce flow-disturbing by the gravity flow of itself and mix, the Smelting furnace for pressure casting that the gravity that makes metallic solution can evenly mix ejaculation stirs.

Background technology

The general low-melting-point metal lower than iron and steel melting point metal, as aluminium (Al), magnesium (Mg) etc., because its fusing point is low, thereby can be used for ejection formation, and temperature flowing is good, can be in order to the thin little member that is shaped.

And general Die casting machine, as shown in Figure 2, be to install a smelting furnace a at the side of a mold main frame (not expression in graphic), this smelting furnace a has an extrusion mechanism b, and this extrusion mechanism b connects an ascending pipe c, front end in this ascending pipe c has a nozzle d, and above smelting furnace a, be provided with an input port a1, can be with magnesium, aluminum metal ingot (not expression in graphic) is put into by input port a1, make this ingot in smelting furnace a, be fused into molten metal e, by extrusion mechanism b molten metal e is introduced ascending pipe c again, molten metal e is injected in the mould of mold main frame by nozzle d.

But the proportion of aluminium, magnesium was promptly inequality originally, and when it was fused into metal liquid in smelting furnace, this magnesium component floated over top in the smelting furnace because of light specific gravity, and this aluminium component is deposited in the below in the smelting furnace because of proportion is heavier.But when high temperature die casting, the extrusion pressure of this extrusion mechanism b only can shoot out position magnesium component die casting up, and the aluminium that is deposited in the stove can't be penetrated by die casting because of proportion is heavier, it is more and to contain aluminium less to cause the finished product of die casting to contain magnesium, so finished product is comparatively crisp hard, can't reach the requirement of finished product impact test, and lose the characteristic that original composition mixes.

The design people has above-mentioned defective thoughts on known metal smelting furnace in order to die casting, thereby sets about design, designs the Smelting furnace for pressure casting that a kind of gravity of the present utility model stirs eventually.

Summary of the invention

The technical problems to be solved in the utility model is: a kind of smelting furnace is provided, especially so a kind of gravity Smelting furnace for pressure casting, it is made up of at least two crystal growing furnaces, when making metallic solution flow into the crystal growing furnace of extreme lower position by the crystal growing furnace of extreme higher position, naturally produce flow-disturbing by the gravity flow of itself and mix, make metallic solution can evenly mix ejaculation.

Technical solution of the present utility model is: installing one extrusion mechanism on a smelting furnace, this extrusion mechanism connect an ascending pipe that molten metal can be injected in the mould of mold main frame, are equiped with an input port on smelting furnace; This smelting furnace is made up of at least two crystal growing furnaces, and this crystal growing furnace is arranged in regular turn from high to lower, and is equiped with valve and screen pack between two crystal growing furnaces, the crystal growing furnace installing extrusion mechanism of extreme lower position, and the crystal growing furnace of extreme higher position is installed aforesaid input port.

The Smelting furnace for pressure casting that the gravity that the utility model proposes stirs, naturally, produces the flow-disturbing mixing when making metallic solution flow into the crystal growing furnace of extreme lower position by the gravity flow of itself by the crystal growing furnace of extreme higher position, so can avoid molten metal to produce precipitation, thereby make metallic solution can evenly mix ejaculation, and obtain to have the product of better quality.In addition, owing between two crystal growing furnaces, respectively be equiped with screen pack, therefore can be by heavier residue in the screen pack filtering metal liquation, make the more consummate and free from admixture of molten metal in the crystal growing furnace of extreme lower position, can further improve the quality of product.This smelting furnace only crystal growing furnace in the extreme higher position is provided with in order to drop into the input port of ingot, and down the crystal growing furnace of Pai Lieing is all air-tight state, can avoid molten metal to produce oxidation.

Description of drawings

Fig. 1 is an assembling cross-sectional schematic of the present utility model;

Fig. 2 is the assembling cross-sectional schematic of known technology.

Drawing reference numeral explanation: 1, smelting furnace 1a, 1b, 1c, crystal growing furnace 11, input port 2, extrusion mechanism 3, ascending pipe 4, molten metal 5, valve 6, screen pack

The specific embodiment

For making the utility model clear and definite more full and accurate, conjunction with figs. describes in detail as the back now:

At first, see also Fig. 1, the Smelting furnace for pressure casting that the gravity that the utility model proposes stirs, it is installing one extrusion mechanism 2 on a smelting furnace 1, this extrusion mechanism 2 connects an ascending pipe 3, in the mould (graphic not expression) that molten metal 4 is injected the mold main frame, and on smelting furnace 1, be equiped with an input port 11.Wherein:

This smelting furnace 1 is made up of at least two crystal growing furnaces among crystal growing furnace 1a, 1b, the 1c, and this crystal growing furnace 1c, 1b, 1a arrange in regular turn from high to lower, and is equiped with valve 5 and screen pack 6 between crystal growing furnace 1a, 1b, 1c.The crystal growing furnace 1a installing extrusion mechanism 2 of extreme lower position, and the crystal growing furnace 1c of extreme higher position installs aforesaid input port 11, when making metallic solution 4 flow into the crystal growing furnace 1a of extreme lower position, produce the flow-disturbing mixing naturally by the gravity flow of itself by the crystal growing furnace 1c of extreme higher position.

According to above-mentioned structure, aluminium (Al), magnesium ingots such as (Mg) are put into to be fused into molten metal by the input port 11 of the crystal growing furnace 1c of extreme higher position.

Because this crystal growing furnace 1c, 1b and 1a are down arranged by height, make gravity that molten metal 4 utilizes itself flow into crystal growing furnace 1b and 1a in regular turn by the crystal growing furnace 1c of extreme higher position, and when molten metal 4 is flowed into the crystal growing furnace 1a of extreme lower position by the crystal growing furnace 1c of extreme higher position, can produce disturbance, make that the molten metal 4 in crystal growing furnace 1a and the 1b is stirred, so can avoid molten metal 4 to produce the situation of precipitation, the molten metal 4 that mixes can be injected in the moulds so that be installed in the last extrusion mechanism 2 of the crystal growing furnace 1a of extreme lower position, avoid causing the situation of product material inequality, and obtain to have the product of better quality.

When this molten metal 4 flows into the crystal growing furnace 1a of extreme lower position by the crystal growing furnace 1c of extreme higher position, can be by valve 5 controls, but 4 moments of molten metal are poured to produce the effect that disturbance is stirred.

This two crystal growing furnaces 1c and 1b, or respectively be equiped with screen pack 6 between crystal growing furnace 1b and the 1a, can be by heavier residue in the screen pack 6 filtering metal liquations 4, make the more consummate and free from admixture of molten metal 4 among the crystal growing furnace 1a of extreme lower position, to make high-quality product.

This smelting furnace 1 only crystal growing furnace 1c in the extreme higher position is provided with in order to drop into the input port 11 of ingot, and down the crystal growing furnace 1b and the 1a of Pai Lieing is all air-tight state, can avoid molten metal 4 to produce oxidation.

Claims

1, the Smelting furnace for pressure casting that stirs of a kind of gravity, installing one extrusion mechanism on a smelting furnace, this extrusion mechanism connect an ascending pipe that molten metal can be injected in the mould of mold main frame, are equiped with an input port on smelting furnace; It is characterized in that: this smelting furnace is made up of at least two crystal growing furnaces, this crystal growing furnace is arranged in regular turn from high to lower, and between two crystal growing furnaces, be equiped with valve and screen pack, and the crystal growing furnace installing extrusion mechanism of extreme lower position, the crystal growing furnace of extreme higher position is installed aforesaid input port.