Device for manufacturing metal paste in double forcing and homogenizing mode and machining forming method thereof

A metal slurry and homogenization technology, which is applied in the field of non-ferrous metal casting and processing, can solve the problems that cannot be satisfied at the same time, and achieve the effects of easy control, better homogenization effect, and simple and compact device structure

Active Publication Date: 2013-06-26
有研金属复材技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, none of these methods and devices can meet the requirements of the following aspects simultaneously:

Method used

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  • Device for manufacturing metal paste in double forcing and homogenizing mode and machining forming method thereof
  • Device for manufacturing metal paste in double forcing and homogenizing mode and machining forming method thereof
  • Device for manufacturing metal paste in double forcing and homogenizing mode and machining forming method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0050] When preparing and processing a low-temperature homogeneous melt, the temperature of the molten metal in the prefabricated cavity 2 and the discharge pipe 4 must be controlled at the liquidus temperature T 0 ~T 0 Within the range of +50°C; when preparing and processing semi-solid slurry, the temperature of the metal slurry in the prefabrication chamber 2 and the discharge pipe 4 must be controlled at the solidus temperature T s ~T 0 In the range.

[0051] The slurry outlet 7 can be connected to any processing equipment, and the metal slurry provided by the slurry outlet 7 must be controlled at T s ~T 0 Processing and forming within the temperature range of +50°C. Processing equipment includes die-casting machines, casting-rolling machines, continuous casting machines, die forging machines and extrusion machines, etc.

[0052] In the processing and forming method for preparing metal slurry by double forced homogenization of the present invention, the metal slurry of...

Embodiment 1

[0058] This embodiment is that the method of the present invention is applied to double-roll horizontal rheological casting and rolling AZ31 magnesium alloy plate

[0059] First start the heating equipment of the device, that is, the thermocouples 6 and 11, so that the valve head of the control rod 1 is in the closed position downward. Set the temperature of the prefabricated chamber 2 to 645°C and the temperature of the discharge pipe 4 to 635°C. When the temperature in the prefabricated cavity 2 and the discharge pipe 4 reaches and stabilizes at the set temperature, the protective gas is sent from the air pressure pipe 14, and the AZ31 magnesium alloy liquid at 650°C is injected from the liquid inlet pipe 9, and the liquid level is determined by the liquid level. Sensor 13 monitors in real time. When the liquid level reaches 2 / 3 of the height of the prefabricated chamber 2, the main coil 3 is started to stir electromagnetically and the control rod 1 rotates to stir. Lift t...

Embodiment 2

[0062] This embodiment is that the method of the present invention is applied to rheological die-casting AZ91D magnesium alloy castings

[0063] First start the heating equipment of the device, that is, the thermocouples 6 and 11, so that the valve head of the control rod 1 is in the closed position downward. Set the temperature of the prefabricated chamber 2 to 605°C and the temperature of the discharge pipe 4 to 595°C. When the temperature in the prefabricated cavity 2 and the discharge pipe 4 reaches and stabilizes at the set temperature, the protective gas is sent from the air pressure pipe 14, and the AZ91 magnesium alloy liquid at 610°C is injected from the liquid inlet pipe 9, and the liquid level is determined by the liquid level. Sensor 13 monitors in real time. When the liquid level reaches 2 / 3 of the height of the prefabricated cavity 2, the main coil 3 is started to stir electromagnetically and the control rod 1 rotates to stir. Lift the control rod 1 to make the...

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Abstract

The invention relates to a device for manufacturing metal paste in a double forcing and homogenizing mode and a manufacturing forming method of the device. The device comprises a control rod, a pre-fabricating cavity, a main coil, a material discharging pipe, an auxiliary coil, a thermocouple, a paste outlet, a slag collecting groove, a liquid inlet pipe, heating and warm-keeping layers, a thermocouple, an alloy inlet, a liquid level sensor, an air pressure pipe and the like. The control rod is a radial symmetrical body and located right in the center of the pre-fabricating cavity, and the liquid inlet pipe, the liquid level sensor, the air pressure pipe and the like are distributed around the control rod. The material discharging pipe is located on the lower portion of the pre-fabricating cavity and is horizontally arranged. The main coil and the auxiliary coil are respectively distributed on the outer portion of the warm-keeping layer of the pre-fabricating layer and the outer portion of the warm-keeping layer of the material discharging pipe, and metal molten bodies bear the electro-magnetic stirring effect produced by the main coil and / or the mechanical stirring effect of self-rotation of the control rod inside the pre-fabricating cavity. Moreover, the metal molten bodies bear the enhancing stirring effect of the auxiliary coil in a secondary mode in the material discharging pipe. The device and the method are simple and easy to achieve, the metal molten bodies are obvious in homogenizing effect after being compounded and stirred in a secondary and enhancing mode, and therefore superior casting pieces which are even in alloy component and thin and small in crystal particle can be obtained.

Description

technical field [0001] The invention relates to a device for preparing metal slurry by double forced homogenization and a processing and forming method thereof. The metal alloy slurry for manufacturing homogeneous fine-grained castings can be obtained through the device and method, and belongs to the technical field of non-ferrous metal casting and processing. Background technique [0002] Traditional metal casting and processing technologies are usually aimed at overheated melt or solid metal, such as die casting, continuous casting and liquid die forging, etc., requiring the molten metal to be overheated above 80°C. If the pouring temperature is too low, it will face poor fluidity and insufficient pouring. Defects such as cracks and segregation; extrusion forming is only for a small number of deformed alloys in the solid state, and most alloys cannot be realized due to their thick dendrite skeleton structure that is easily broken. In recent years, the semi-solid processing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D27/04
Inventor 刘国钧徐骏
Owner 有研金属复材技术有限公司
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