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Aluminum alloy fluidity precise testing device and method

A testing device and technology of aluminum alloy, applied in the direction of DC flow characteristic measurement, etc., can solve the problem that the fluidity cannot be accurately measured, and achieve the effect of reducing errors, realizing precise control, and simplifying the process

Inactive Publication Date: 2020-05-08
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the above situation, the object of the present invention is to provide an accurate testing device and testing method for the fluidity of aluminum alloy metal, so as to solve the problem that the fluidity cannot be accurately measured

Method used

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  • Aluminum alloy fluidity precise testing device and method
  • Aluminum alloy fluidity precise testing device and method
  • Aluminum alloy fluidity precise testing device and method

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example 1

[0031] The distance between the points of the three-helix mold used in the test experiment is 50mm. The lengths of the three helixes are measured and the average value is sufficient. The casting with a larger average value has better fluidity.

[0032] Configure the ZL205A aluminum alloy according to the following ratio.

[0033] element Cu mn Ti Cd V Zr B Al Content / wt.% 4.9 0.5 0.27 0.16 0.12 0.15 0.06 the bal

[0034] Assemble, switch on, and debug the device according to the steps, set the sensor parameters, the preheating temperature is 750°C, and the casting temperature is 710°C. Pour the refined aluminum liquid into the crucible and overflow to the overflow tank. Observe the electronic scale and measure the weight of the aluminum liquid to be 3.02kg. When the temperature of the aluminum liquid reaches 710℃, the electric cylinder rises at a speed of 0.1m / s. flow into the cavity. After the molten aluminum is cooled and solidified,...

example 2

[0039] Configure the ZL114A aluminum alloy according to the following ratio.

[0040]

[0041] Assemble, switch on, and debug the device according to the steps, set the sensor parameters, the preheating temperature is 750°C, and the casting temperature is 710°C. Pour the refined aluminum liquid into the crucible and overflow to the overflow tank. Observe the electronic scale and measure the weight of the aluminum liquid to be 3.00kg. When the temperature of the aluminum liquid reaches 710°C, the electric cylinder rises at a speed of 0.06m / s. flow into the cavity. After the molten aluminum is cooled and solidified, take it out of the box.

[0042] Using a traditional fluidity device, repeat the above operation steps by manual casting. After repeating 23 times, the triple helix casting of ZL114A, at 710°C, the maximum flow length L max 607mm, minimum flow length L min is 549mm, the difference between the maximum flow length and the minimum flow length|L max -L min |<58mm...

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Abstract

The invention provides an aluminum alloy metal fluidity precise testing device and an aluminum alloy metal fluidity precise testing method. The aluminum alloy metal fluidity precise testing device ismainly composed of an industrial control heating module, a temperature control module, an electric control module, a weight control module and a casting mold module; and three important parameters ofpouring temperature, pouring speed and pouring weight are precisely controlled to realize precise measurement of metal fluidity. The test method selected for the test is a built-in three-spiral test method. Through automatically designing the metal fluidity full-automatic precise testing device and the metal fluidity full-automatic precise testing method, measuring the temperature by means of a thermocouple and transmitting molten aluminum temperature signals by means of a bus type temperature transmitter, precise control over the temperature of molten aluminum alloy is achieved in the castingprocess; a molten aluminum overflow device and the weight of molten aluminum are dynamically monitored, so that the weight of the molten aluminum alloy is precisely controlled; and the temperature feedback module is connected with the electric control module, so that the flow velocity during each casting is kept consistent, and the casting speed of the molten aluminum alloy is precisely controlled in the casting process.

Description

technical field [0001] The invention belongs to the field of aluminum alloy casting performance testing, and in particular relates to a device for accurately measuring metal fluidity of aluminum alloy and a testing method thereof. Background technique [0002] The fluidity of casting alloy is an important index to evaluate the filling ability of liquid metal, and its quality directly affects the formability of castings. At present, the common metal fluidity test methods at home and abroad mainly include: spiral test method, radiation test method and compound groove test method; among them, the spiral test method is widely used. In the process of using the spiral method to measure the metal fluidity, the molten aluminum is directly clamped into the crucible and poured into the spiral mold. During repeated tests, the consistency of the pouring temperature, pouring speed and the weight of the molten metal cannot be guaranteed. Among them, the pouring temperature fluctuation ran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N11/04
CPCG01N11/04
Inventor 张国伟牛经纬徐超徐宏宋兵任霁萍
Owner ZHONGBEI UNIV
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