Device and method for counter-gravity casting of solidification process controlled titanium-based alloy

A technology of anti-gravity casting and titanium-based alloys, which is applied in the field of anti-gravity casting methods and suction casting systems for titanium-based alloys. Inhomogeneity, thermal stress reduction, and excellent structure uniformity

Inactive Publication Date: 2014-08-13
NORTHWESTERN POLYTECHNICAL UNIV
View PDF15 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the disadvantages of uncontrollable mold temperature, coarse and uneven casting structure, and easy cracking of castings in the existing titanium-

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device and method for counter-gravity casting of solidification process controlled titanium-based alloy
  • Device and method for counter-gravity casting of solidification process controlled titanium-based alloy
  • Device and method for counter-gravity casting of solidification process controlled titanium-based alloy

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example one:

[0027] This embodiment is a titanium-based alloy anti-gravity casting device with a controllable solidification process, which is composed of a smelting system and a suction casting system. This embodiment is obtained by improving the anti-gravity casting device of the prior art.

[0028] The smelting system is the same as the prior art, and includes a lower furnace body 1, an induction heater 2, a water-cooled copper crucible 3, a crucible lifting mechanism 4, an inert gas cylinder 5, and a vacuum pipe 6. Wherein, the induction heater is a water-cooled copper coil wound on the outside of the water-cooled copper crucible, and the crucible lifting mechanism is located under the water-cooled copper crucible and is controlled by a motor to realize the lifting of the water-cooled copper crucible. The suction casting system is composed of an upper furnace body 7, a riser tube 8, a riser tube heater 9, a mold heater 10, a mold fixing sleeve 6, and a ceramic mold 12...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a device and a method for the counter-gravity casting of solidification process controlled titanium-based alloy. The device comprises a smelting system and a suction casting system, wherein casting mold heaters are mounted on the inside surface of an upper furnace body of the suction casting system; liquid riser tube heaters are fixedly arranged on the inside surface of a transition chamber between the upper furnace body and a lower furnace body. According to the device and the method, during counter-gravity casting, ceramic casting molds are subjected to heating and heat preservation through induction heating devices of the upper furnace body, so that the pouring temperature of the ceramic casting molds is greatly increased, the fluidity of titanium-based alloy melt is improved, and also, the complete mold filling of titanium-based alloy liquid metal is realized; through adjusting the power of the casting mold heaters, the change of different cast part cooling speeds in the range between 1,400 DEG C and the room temperature can be realized, the aims of controlling the cooling speed and solidification path of cast parts is achieved, thus, alpha crystal grains are spheroidized, and the cast parts with excellent tissue uniformity are obtained.

Description

technical field [0001] The invention relates to an anti-gravity casting device and its technical field, in particular to a titanium-based alloy anti-gravity casting method and suction casting system with controllable solidification process. Background technique [0002] Precision casting is an advanced near-net-shape casting process, which has been applied in many fields, and is especially suitable for the forming of complex-shaped and thin-walled components. As a method of precision casting, anti-gravity casting is conducive to the smooth filling of molten metal, positive pressure solidification, and excellent feeding effect. The castings produced by it have the characteristics of accurate size, high yield, good mechanical properties and high internal quality. , Generally, it can be applied without processing or with a little processing, which can save a lot of metal and machining devices. The anti-gravity production device has high efficiency and is easy to realize the me...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B22D18/04
Inventor 寇宏超王军杨光李金山孙智刚胡锐薛祥义
Owner NORTHWESTERN POLYTECHNICAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap