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

Method for direct production of core in narrow groove and blind hole of wax mould

A wax mold and blind hole technology, applied in the direction of core, mold, mold composition, etc., can solve problems such as complex casting process, and achieve the effect of broad prospects, short production cycle and considerable economic benefits

Inactive Publication Date: 2009-07-01
TSINGHUA UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0067] The purpose of the present invention is to provide a method for directly making cores in narrow grooves and blind holes of wax patterns, so as to solve the above-mentioned shortcomings in the production of complex castings

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
  • Method for direct production of core in narrow groove and blind hole of wax mould
  • Method for direct production of core in narrow groove and blind hole of wax mould
  • Method for direct production of core in narrow groove and blind hole of wax mould

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0106] A method for directly manufacturing cores in narrow grooves and blind holes of wax patterns, the method comprises the following steps:

[0107] (1) wax mold pressure type

[0108] According to casting requirements, design and manufacture wax mold pressing;

[0109] (2) Wax mold making

[0110] The wax material is pressed into the wax mold described in step (1) to form a wax mold with deep grooves and blind holes;

[0111] (3) Slurry preparation

[0112] According to the ratio of each mass unit, add the raw materials and mix them in the order of binder, surfactant, refractory material, defoamer, and coagulant to prepare slurry; the addition amount is: binder silica sol 100g, refractory material fused silica 200g, coagulant organic acid 0.1g, surfactant fatty alcohol polyoxyethyl ether (JFC) 0.3g, defoamer silicone defoamer 0.2g;

[0113] (4) Grouting into the wax mold

[0114] Pour the slurry prepared in step (3) into the deep groove and blind hole of the wax mold p...

Embodiment 2

[0116] A method for directly manufacturing cores in narrow grooves and blind holes of wax patterns, the method comprises the following steps:

[0117] (1) wax mold pressure type

[0118] According to casting requirements, design and manufacture wax mold pressing;

[0119] (2) Wax mold making

[0120] The wax material is pressed into the wax mold described in step (1) to form a wax mold with deep grooves and blind holes;

[0121] (3) Slurry preparation

[0122] According to the ratio of each mass unit, add the raw materials and mix them in the order of binder, surfactant, refractory material, defoamer, and coagulant to prepare slurry; the addition amount is: binder water glass 100g, refractory material quartz 50g , coal gangue 70g, coagulant acid 0.1 g, surfactant fatty alcohol polyoxyethyl ether (JFC) 0.2g, defoamer silicone defoamer 0.3g

[0123] (4) Grouting into the wax mold

[0124] Pour the slurry prepared in step (3) into the deep groove and blind hole of the wax m...

Embodiment 3

[0126] A method for directly manufacturing cores in narrow grooves and blind holes of wax patterns, the method comprises the following steps:

[0127] (1) wax mold pressure type

[0128] According to casting requirements, design and manufacture wax mold pressing;

[0129] (2) Wax mold making

[0130] The wax material is pressed into the wax mold described in step (1) to form a wax mold with deep grooves and blind holes;

[0131] (3) Slurry preparation

[0132] According to the mass ratio, add the raw materials in order of binder, refractory material and coagulant to prepare slurry; the addition amount is: binder ethyl silicate hydrolyzate 100g, refractory corundum 300g, coagulant alcohol Amine 2g;

[0133] (4) Grouting into the wax mold to make the core

[0134] Pour the slurry prepared in step (3) into the deep groove and blind hole of the wax mold prepared in step (2); after the slurry in the wax mold is solidified, the narrow groove and blind hole of the wax mold are d...

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

A method for directly making cores in narrow grooves and blind holes of wax patterns, relating to a new and simple method for making investment casting cores, more specifically, a method for making deep grooves before wax patterns are assembled A method for preparing a core by filling a blind hole with a coagulant-added slurry, which belongs to the technical field of quick core-making methods in investment casting; making wax molds; making wax molds; for water-based binders, According to the ratio of each mass unit, according to binder: refractory material: coagulant: surfactant: defoamer = 100: (100 ~ 400): (0.1 ~ 10): (0.1 ~ 0.3): (0.1 ~ 0.3 ) sequentially add the raw materials used and mix to prepare the slurry; grout into the wax mold to form; solidify, that is, directly make the narrow groove of the wax mold and the core in the blind hole. The invention is a new and fast method for making mold cores. The method is simple, does not require special equipment, saves energy, has low production cost, greatly shortens the production cycle, and has broad prospects in the field of investment casting.

Description

technical field [0001] A method for directly making cores in narrow grooves and blind holes of wax patterns, relating to a new and simple method for making investment casting cores, more specifically, a method for making deep grooves before wax patterns are assembled The invention discloses a method for preparing a mold core by filling blind holes and the like with slurry added with a coagulant, and belongs to the technical field of methods for quickly making mold cores in investment casting. Background technique [0002] The general process of investment casting: wax mold pressing, gate wax mold making, tree forming, shell making, dewaxing, roasting, pouring, cleaning and other processes. [0003] Generally, the inner cavity of precision castings is formed through processes such as coating and sanding together with the shape, and no custom-made core is required. However, when the inner cavity of the casting is too narrow or complex in shape, conventional processes such as ...

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 Patents(China)
IPC IPC(8): B22C9/04
Inventor 闫双景姜不居吕志刚崔旭龙
Owner TSINGHUA UNIV
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