Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Lost pattern casting method

一种消失模铸造、模型的技术,应用在铸造成型设备、铸型、铸型成分等方向,能够解决恶化环境、砂型强度不足、铸件铸造缺陷等问题

Inactive Publication Date: 2005-03-02
KAO CORP
View PDF2 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process thermally decomposes the synthetic resin foam through the injected melt, but produces a large amount of pyrolysis gas containing carbon black (soot), produces peculiar smell, etc., and deteriorates the environment. Defects
[0003] The lost foam casting method has many advantages such as easy casting. On the contrary, there are casting defects caused by poor adjustment of exhaust, low model strength, and the sand cannot be strongly filled because the model is easily damaged, and the sand mold strength is insufficient due to insufficient filling density. Or sticky sand and other defects

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
  • Lost pattern casting method
  • Lost pattern casting method
  • Lost pattern casting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] like figure 1 as shown (however, sample 3 as Figure 9 shown), install the Figure 4~6 The foam models shown (all made of styrofoam) were subjected to lost pattern casting. Below, will Figure 4 The member of the sample is used as sample 1, and the Figure 5 The member of the sample is used as sample 2, and the Image 6 The component is used as sample 3.

[0078] In sample 2, the size of the hollow portion 51, in Figure 5 The x-direction is 100 mm, the y-direction is 60 mm, and the z-direction is 155 mm, and the dimensions of the protrusion 52 are 50 mm in the x-direction, 20 mm in the y-direction, and 20 mm in the z-direction.

[0079] In addition, in Sample 3, the dimensions of the cavities 1 and 3 are 200 mm in width × 130 mm in length and 275 mm in depth, and the dimensions of cavity 2 are 200 mm in width × 140 mm in length and 275 mm in depth (thickness of the outer frame and the division part is 25 mm). ).

[0080] Figure 7 The form of the through hole ...

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

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

Provided is an evaporative pattern casting process wherein a casting process plan capable of attaining the optimal discharge of generated gas can easily be decided. The present invention is an evaporative pattern casting process for casting a product, which comprises pouring a molten metal in a mold in which a pattern made of an expanded synthetic resin is embedded in molding sand, and evaporating the pattern with the molten metal, while gas generated by evaporation of the pattern is discharged outside the mold through a discharging passage comprising a discharged gas suppressing means, wherein the ventilation of the discharging passage is controlled on the basis of the material and the shape of the pattern and the kind of the molten metal and the temperature of the molten metal.

Description

technical field [0001] The present invention relates to a lost foam casting method, in particular to a lost foam casting method in which casting is performed while releasing gas generated by the disappearance of a mold to the outside of a sand mold through a discharge passage. Background technique [0002] The lost foam casting method, also known as the foam plastic casting method, is a process in which a model made of synthetic resin foam is embedded in molding sand and directly used as a sand mold. This process thermally decomposes the synthetic resin foam through the injected melt, but produces a large amount of pyrolysis gas containing carbon black (soot), produces peculiar smell, etc., and deteriorates the environment. flawed shortcomings. [0003] The lost foam casting method has many advantages such as easy casting. On the contrary, there are casting defects caused by poor adjustment of exhaust, low model strength, and the sand cannot be strongly filled because the m...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B22C7/02B22C9/00B22C9/04
CPCB22C9/046
Inventor 成岛毅富田洋夫加藤雅之键谷昌彦
Owner KAO CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products