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

Manufacturing method of thin shell

A production method and thin technology, applied in the direction of casting mold, core, casting mold composition, etc., can solve the problems of time-consuming, labor-intensive, material consumption, etc., and achieve the effect of improving work efficiency and reducing capital investment

Inactive Publication Date: 2012-03-28
淅川县华新铸造有限公司
View PDF2 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current shell needs to be made of 6-7 layers, and the large part needs to be made of 7--8 layers, which not only consumes materials, but also takes time and effort.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Prepare the surface layer coating first, measure the specific gravity of water glass with a hydrometer to 1.28, and the modulus to be 3.1. First adjust the specific gravity of water glass in the material tank, then add 270 mesh quartz powder, stir while adding, the powder-liquid ratio is controlled at 1:1.10, the paint is fully stirred for 1 hour, and the viscosity is measured with a flow cup. If the viscosity is not 8- At 20°C, 40-70s and 20-35°C, within the range of 25-35S, adjust to the qualified range. After the paint is stirred, it can be used after standing for more than 2.5 hours. Retest the viscosity of the paint before dipping the paint, and adjust to Qualified range, then immerse the module in the paint, move up and down and turn it, lift it up, drip off the excess paint, and rotate the module reasonably, so that the paint can evenly cover the surface of the module, if there is any lack of coating and air bubbles, use a brush to repaint and brush to remove air...

Embodiment 2

[0014] Prepare the surface coating first, measure the specific gravity of water glass with a hydrometer to 1.29, and the modulus to 3.3. First adjust the specific gravity of the water glass in the material tank, then add 270 mesh quartz powder, and stir while adding. The powder-liquid ratio is controlled at 1: 1.20, the paint is fully stirred for 1 hour, and the viscosity is measured with a flow cup. If the viscosity is not at 8-20°C, it is 40-70s; It can be used after more than 3 hours. Re-measure the viscosity of the paint before dipping in the paint and adjust it to the acceptable range. Then dip the module into the paint and move up and down and rotate it. After lifting it, drip off the excess paint and rotate the module reasonably so that the paint can Evenly cover the surface of the module, if there is lack of coating and air bubbles, use a brush to repaint and brush away the air bubbles; sanding: put 70 mesh quartz sand in the sanding machine, start the sanding machine, ...

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 manufacturing method of a thin shell. With water glass as a paint binder, the method employs a manual shell making operation of hardening with crystal aluminum chloride and filters paint into a paint bucket after stirring it well. In the method, the processes of coating, sand lining, hardening, and air drying go repeatedly, with 3.5 shell layers manufactured and 40-60min of air drying for each layer. For technologies before changing, a small shell is usually made into 6 layers and a large shell is made into 7 layers. Thus, the method of the invention not only reduces the capital investment of raw materials, but also enhances the work efficiency.

Description

technical field [0001] The invention belongs to the technical field of casting production, and in particular relates to a method for making a thin shell. Background technique [0002] Shell casting is a casting method in which a mixture of silica sand or zircon sand and resin or resin-coated sand is used to form a thin shell mold. Using resin sand to make thin-shell molds or shell cores can significantly reduce the amount of sand used, and the obtained castings have clear contours, smooth surfaces, and precise dimensions, and can be machined without machining or only a small amount of machining. Therefore, shell casting is especially suitable for the production of castings of various alloys with large batches, high dimensional accuracy requirements, thin walls and complex shapes. However, the current shell needs to be made of 6-7 layers, and the large part needs to be made of 7--8 layers, which not only consumes materials, but also takes time and effort. Contents of t...

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): B22C9/02B22C9/04
Inventor 李新民邢宝剑曹丽何磊姚华卓李云飞
Owner 淅川县华新铸造有限公司
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

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com