High-pressure casting process of welding-free axial flow fan

A high-pressure casting and axial flow fan technology, applied in the field of high-pressure casting technology, can solve the problems of heavy weight of low-pressure casting impellers, low efficiency of performance parameters, lack of market competitiveness, etc., to reduce potential safety hazards, improve automation, and improve processing efficiency Effect

Active Publication Date: 2020-03-24
ZHEJIANG SHANGFENG HI TECH SPECIALIZED WIND IND
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The low-pressure cast impeller is heavy and lacks market competitiveness; the steel welded impeller is easy to deviate from the technical requirements, and the efficiency of performance parameters is low

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
  • High-pressure casting process of welding-free axial flow fan
  • High-pressure casting process of welding-free axial flow fan
  • High-pressure casting process of welding-free axial flow fan

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A high-pressure casting process for a non-welded axial flow fan, specifically the high-pressure casting process for the impeller, including: a. mold design and manufacture: design the shape of the mold according to the shape of the impeller, and complete the manufacture of the cone; b. installation of the mold And testing: put the mold into the casting machine, and test the performance index of the mold; c, mold pretreatment: after preheating the mold, spray paint on the inner wall of the mold; d, fit the mold Casting: After the upper and lower molds of the mold are combined, the metal in the molten state is injected into the mold; e, injection and cooling: reasonable control of the injection pressure to fill the entire mold with metal, and then cool the mold processing, so that the castings can be quickly formed; f, mold opening and picking: after the casting mold is completed, the upper and lower molds are opened, and the molded castings are directly taken out; g, qual...

Embodiment 2

[0063] A high-pressure casting process for a non-welded axial flow fan, specifically the high-pressure casting process for the impeller, including: a. mold design and manufacture: design the shape of the mold according to the shape of the impeller, and complete the manufacture of the cone; b. installation of the mold And testing: put the mold into the casting machine, and test the performance index of the mold; c, mold pretreatment: after preheating the mold, spray paint on the inner wall of the mold; d, fit the mold Casting: After the upper and lower molds of the mold are combined, the metal in the molten state is injected into the mold; e, injection and cooling: reasonable control of the injection pressure to fill the entire mold with metal, and then cool the mold processing, so that the castings can be quickly formed; f, mold opening and picking: after the casting mold is completed, the upper and lower molds are opened, and the molded castings are directly taken out; g, qual...

Embodiment 3

[0065] A high-pressure casting process for a non-welded axial flow fan, specifically the high-pressure casting process for the impeller, including: a. mold design and manufacture: design the shape of the mold according to the shape of the impeller, and complete the manufacture of the cone; b. installation of the mold And testing: put the mold into the casting machine, and test the performance index of the mold; c, mold pretreatment: after preheating the mold, spray paint on the inner wall of the mold; d, fit the mold Casting: After the upper and lower molds of the mold are combined, the metal in the molten state is injected into the mold; e, injection and cooling: reasonable control of the injection pressure to fill the entire mold with metal, and then cool the mold processing, so that the castings can be quickly formed; f, mold opening and picking: after the casting mold is completed, the upper and lower molds are opened, and the molded castings are directly taken out; g, qual...

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 discloses a high-pressure casting process of a welding-free axial flow fan, in particular to a high-pressure casting process of an impeller. The high-pressure casting process comprises the steps of: a, casting mold designing and manufacturing: designing the shapes of the casting molds according to the shape of the impeller to finish manufacturing cones; b, casting mold mounting and test: mounting the casting molds into a casting machine, and testing performance indexes of the casting molds; c, casting mold pretreatment: after preheating treatment is conducted on the casting molds, spraying paint to the inner walls of the casting molds; d, mold assembling and casting: after the upper molds and the lower molds of the casting molds are combined, injecting molten metal into the casting molds; e, injection and cooling: reasonably controlling the injection pressure, filling the whole casting molds with metal, then performing cooling treatment on the casting molds, and rapidly forming the castings; f, mold opening and taking-out: opening the upper molds and the lower molds after the casting molds are formed, and directly taking out the formed castings; and g, quality inspection: performing index detection and surface treatment on the obtained castings, screening the castings meeting the requirements, and obtaining finished products.

Description

technical field [0001] The invention belongs to the technical field of fan processing, and in particular relates to a high-pressure casting process of an axial flow fan without welding. Background technique [0002] At present, the common design in the fan industry adopts the method of welding to assemble the various parts of the fan. This method is manual welding, which is labor-intensive, and welding defects are prone to occur at the solder joints, and the manufacturing and installation are very cumbersome. [0003] In addition, the impellers of industrial and civil construction axial fans on the market generally use low-pressure casting impellers or steel welded impellers. The low-pressure casting impeller is heavy and lacks market competitiveness; the steel welded impeller is easy to deviate from the technical requirements, and the efficiency of performance parameters is low. [0004] When the impeller is manufactured by casting, it is necessary to coat the surface of ...

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): B22D17/00B22D17/20B22D17/22
CPCB22D17/00B22D17/2007B22D17/2015B22D17/2236
Inventor 胡伟锋竹渝晓卢青青陈一伟石红
Owner ZHEJIANG SHANGFENG HI TECH SPECIALIZED WIND IND
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