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Metal material double-moving-die pressure forming method and device based on suspension melting matching

A metal material and driving device technology, which is applied in the field of double-moving die pressure forming methods and devices for metal materials based on suspension fusion, can solve the problems of poor service performance, small parts, and low single-piece/small batch production efficiency, etc. Improve service performance, inhibit natural convection and buoyancy, and reduce shrinkage

Active Publication Date: 2022-01-07
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a double-moving die pressure forming method and device for metal materials based on suspension fusion, which can solve the problems of poor service performance and low production efficiency of small parts and single parts / small batches in the existing casting forming technology The problem

Method used

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  • Metal material double-moving-die pressure forming method and device based on suspension melting matching
  • Metal material double-moving-die pressure forming method and device based on suspension melting matching
  • Metal material double-moving-die pressure forming method and device based on suspension melting matching

Examples

Experimental program
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Effect test

Embodiment 1

[0081] Include the following steps:

[0082] Step 1. Install an electrostatic levitation device in the containerless state chamber 1, adjust the microgravity chamber 2 to 1500 mm, select an AC electromagnet device optimized for vacuum environment as the drive device 32 and 2 such as Figure 4 The metal movable mold 31-3 of copper cylindrical shape shown is ready for installation in the pressure forming chamber 3. Select the pressure delay control mode in the integrated control system 5 to delay the power on after the suspension stop signal is detected, with a delay of 590ms, and set the mold pressure holding time in the integrated control system 5 to 3000ms. Adjust the voltage of the power supply 31-1 (AC power supply) to 110V. Zr with a diameter of 2mm 60 Ni 25 al 15 The ball is loaded into the vacuum chamber;

[0083] Step 2. Turn on the vacuum pump system 4 to pump the vacuum chamber to 1×10 -5 Pa, and Zr 60 Ni 25 al 15 The ball is sent to the appropriate hanging p...

Embodiment 2

[0090] Include the following steps:

[0091] Step 1. Install an electromagnetic levitation device in the containerless state chamber 1, adjust the microgravity chamber 2 to 1000 mm, select an AC electromagnet device optimized for a vacuum environment as the driving device 32 and a molybdenum square metal movable mold 31-3, one side of which is For such Figure 4 Shown square metal moving mold 31-3, the other side is for having special-shaped groove, overflow groove and exhaust duct such as Figure 5 The cavity movable mold 31-3a shown is ready for installation in the pressure forming chamber 3. Select the pressure delay control mode in the integrated control system 5 to delay the power on after the suspension stop signal is detected, with a delay of 490ms, and set the mold pressure holding time in the integrated control system 5 to 5000ms. Adjust the voltage of the power supply 31-1 (AC power supply) to 110V. Put AA2024 aluminum alloy balls with a diameter of 500mm into the...

Embodiment 3

[0099] Include the following steps:

[0100] Step 1. Install a pneumatic levitation device in the containerless state chamber 1, select Ar gas as the levitation power gas, splice the microgravity chamber 2 to 3000mm, select a vacuum stepping motor as the driving device 32 and such as Figure 4 Shown stainless steel square metal moving mold 31-3, and in pressure forming chamber 3 installation ready. In the integrated control system 5, the delay control mode is selected to be energized after the photodetector 52 detects that the molten metal has fallen to a suitable height. Fix the photodetector 52 to the observation window of the microgravity chamber 2 at the bottom, delay for 45 ms, and set the mold holding time in the integrated control system 5 to 500 ms. Adjust the voltage of the power supply 31-1 (AC power supply) to 220V, and set the motor propulsion speed to 1m / s in the integrated control system 5 . Ti with a diameter of 300mm 85 Ni 10 al 5 Alloy balls are loaded in...

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Abstract

The invention discloses a metal material double-moving-die pressure forming method based on suspension melting matching, and relates to the technical field of metal material forming. The metal material double-moving-die pressure forming method comprises the following steps that 1, a metal material is put into a vacuum chamber, and the vacuum chamber is vacuumized; 2, the environment of the vacuum chamber is adjusted, and a pressure forming mechanism is preheated to the target temperature; 3, the metal material is subjected to suspension melting matching, and the container-free state of the metal melt is achieved; 4, after the metal melt is cooled to the target temperature, the metal melt freely falls in the vacuum chamber, and the microgravity level is obtained; 5, after the metal melt falls to a proper position, the pressure forming mechanism is driven to conduct pressure forming on the metal melt; and 6, the vacuum chamber is opened, and a casting is taken out. The invention further discloses a metal material double-movable-die pressure forming device based on suspension melting matching. The problems that in an existing casting forming technology, the service performance is poor, and the production efficiency of small pieces and single pieces / small batches is low can be solved.

Description

technical field [0001] The invention relates to the field of metal material forming, in particular to a double-moving die pressure forming method and device for metal material based on suspension fusion. Background technique [0002] Casting forming techniques such as pouring and die-casting are forming methods in which metal melts are poured / pressed into molds, cooled and solidified to obtain metal parts of specific shapes. Because of its relatively simple technical requirements and low price, it has been applied in large-scale industrial production. However, in the traditional casting process, metal parts are prone to defects and deficiencies such as shrinkage cavities, cracks, pores, oxidation, and segregation, which greatly affect the service performance of metal parts. Moreover, the traditional casting forming technology is only applicable to a few metal materials such as aluminum alloy, magnesium alloy and steel, which has great limitations. In addition, the traditio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D18/06B22D18/02
CPCB22D18/06B22D18/02
Inventor 阮莹肖瑞麟胡亮解文军魏炳波
Owner NORTHWESTERN POLYTECHNICAL UNIV
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