A nonlinear pressure control system for differential pressure casting of complex metal components

A differential pressure casting and metal component technology, applied in the field of nonlinear pressure control system, can solve the problems of poor forming quality of complex metal components, avoid churning and splashing, solve poor forming quality, and eliminate shrinkage cavities and shrinkage porosity. Effect

Active Publication Date: 2020-09-01
哈尔滨卡斯鼎智能装备科技有限公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of poor molding quality of complex metal components caused by the linear pressurization method in the existing differential pressure casting process, the present invention proposes a non-linear pressurization control system for differential pressure casting molding of complex metal components

Method used

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  • A nonlinear pressure control system for differential pressure casting of complex metal components
  • A nonlinear pressure control system for differential pressure casting of complex metal components
  • A nonlinear pressure control system for differential pressure casting of complex metal components

Examples

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Embodiment 1

[0028] Embodiment one: combine below figure 1 and figure 2 This embodiment will be described in detail.

[0029] The non-linear pressure control system for differential pressure casting of complex metal components described in this embodiment is used in conjunction with differential pressure casting equipment, and the differential pressure casting equipment includes an upper pressure cylinder and a lower pressure cylinder 5;

[0030] The nonlinear pressurization control system includes a main control unit, a solenoid valve control unit, a solenoid valve network 1 and a differential pressure sensing unit;

[0031] The solenoid valve network 1 includes a first solenoid valve subnetwork and a second solenoid valve subnetwork, and the first solenoid valve subnetwork and the second solenoid valve subnetwork are arranged in parallel;

[0032] The first solenoid valve sub-network includes five solenoid valves connected in parallel with each other, and the second solenoid valve sub...

Embodiment 2

[0045] Embodiment two: combine below image 3 and Figure 4 This embodiment will be described in detail.

[0046] The non-linear pressure control system for differential pressure casting of complex metal components described in this embodiment is used in conjunction with differential pressure casting equipment, and the differential pressure casting equipment includes an upper pressure cylinder 6 and a lower pressure cylinder;

[0047] The nonlinear pressurization control system includes a main control unit, a solenoid valve control unit, a solenoid valve network 1 and a differential pressure sensing unit;

[0048] The solenoid valve network 1 includes a first solenoid valve subnetwork and a second solenoid valve subnetwork, and the first solenoid valve subnetwork and the second solenoid valve subnetwork are arranged in parallel;

[0049] The first solenoid valve sub-network includes five solenoid valves connected in parallel with each other, and the second solenoid valve sub...

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Abstract

The invention discloses a non-linear pressurization control system for complex metal component differential pressure casting forming, and belongs to the field of differential pressure casting forming.With the non-linear pressurization control system for complex metal component differential pressure casting forming, the problem that according to an existing differential pressure casting technology, because a linear pressurization manner is adopted, a complex metal component is poor in forming quality is solved. According to the non-linear pressurization control system, a solenoid valve networkis arranged on an air channel between an upper pressure canister and an inflation and deflation device, or is arranged on an air channel between a lower pressure canister and the inflation and deflation device. A solenoid valve control unit is used for adjusting the current capacity of the solenoid valve network. A pressure difference sensing unit detects the air pressure difference between the interior of the upper pressure canister and the interior of the lower pressure canister in real time, and transmits a detected air pressure difference value to a main control unit. A closed-loop control system is formed by the main control unit, the solenoid valve control unit, the solenoid valve network and the pressure difference sensing unit, wherein a theoretical non-linear pressurization curvegenerated according to the structure of a complex metal component is preset in the main control unit. The closed-loop control system is used for making an actual pressure difference curve between theupper pressure canister and the lower pressure canister coincide with the theoretical non-linear pressurization curve.

Description

technical field [0001] The invention relates to a nonlinear pressurization control system, which belongs to the field of differential pressure casting. Background technique [0002] When the differential pressure casting process is used to form complex metal components, due to the uneven thickness of the complex metal components, in order to keep the filling liquid level always stable, it is required that the differential pressure casting equipment should be filled according to the structure of the complex metal components. To adjust the pressurized pressure at any time, and then change the filling rate of the molten metal. However, the existing differential pressure casting process usually gives a linear pressurization curve through inherent experience and rough calculation, and changes the filling rate according to the linear pressurization curve. This pressurization method cannot change the filling rate of molten metal in real time at structural mutations of complex meta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D18/04B22D18/08
CPCB22D18/04B22D18/08
Inventor 孙剑飞邱子傲曹福洋陈宏钧彭德林宋和谦
Owner 哈尔滨卡斯鼎智能装备科技有限公司
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