Cold core box resin for high collapsibility cast aluminum engine cylinder block and preparation method thereof

A technology of engine block and cold core box, which is applied to casting molding equipment, casting molds, cores, etc., can solve the problems of difficulty in sand cleaning and high rejection rate of castings, so as to reduce residual strength, reduce rejection rate, and improve resin collapse. sexual effect

Active Publication Date: 2021-03-26
四川东树新材料有限公司
View PDF13 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a cold box resin for high-collapse cast aluminum engine block and its preparation method, to overcome the problems of poor collapsibility and low normal temperature strength of the resin in the prior art, and to solve the problem in the manufacture of cast aluminum engines In the process, there are defects such as difficulty in sand removal and high casting rejection rate, so that it can be successfully applied in the field of cast aluminum engine cylinders, thereby solving the pain points in the industry and achieving remarkable results

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
  • Cold core box resin for high collapsibility cast aluminum engine cylinder block and preparation method thereof
  • Cold core box resin for high collapsibility cast aluminum engine cylinder block and preparation method thereof
  • Cold core box resin for high collapsibility cast aluminum engine cylinder block and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Cold core box resin for high collapse cast aluminum engine block and preparation method thereof:

[0042] Component I: In mass percentage, phenyl ether phenolic resin 43%, furfuryl alcohol 12%, DBE 23%, high boiling point aromatic hydrocarbon solvent S-150 20%, hydrofluoric acid 1.5%, silane A1160 0.5%.

[0043] (1) add phenyl ether-type phenolic resin in the reaction kettle, then immediately add furfuryl alcohol, turn on stirring, and be warming up to 75-80 ℃ by the heating rate of 0.5 ℃ / min, heat preservation reaction 20-40min;

[0044] (2) reaction finishes, is cooled to below 60 ℃, adds DBE and high boiling point aromatic hydrocarbon solvent S-150;

[0045] (3) adding hydrofluoric acid;

[0046] (4) Finally, add silane A1160, stir and mix evenly and discharge.

[0047] Component II: by mass percentage, PM-200 72%, urea-formaldehyde resin 3%, high boiling point aromatic hydrocarbon solvent S-15024%, phosphorus oxychloride 0.5%, silane GX01 0.5%.

[0048] (1) Befor...

Embodiment 2

[0054] Cold core box resin for high collapse cast aluminum engine block and preparation method thereof:

[0055] Component I: In mass percentage, phenyl ether phenolic resin 43%, furfuryl alcohol 10%, DBE 20%, high boiling point aromatic hydrocarbon solvent S-150 25%, hydrofluoric acid 1.4%, silane A1160 0.6%.

[0056] (1) add phenyl ether-type phenolic resin in the reaction kettle, then immediately add furfuryl alcohol, turn on stirring, and be warming up to 75-80 ℃ by the heating rate of 0.5 ℃ / min, heat preservation reaction 20-40min;

[0057] (2) reaction finishes, is cooled to below 60 ℃, adds DBE and high boiling point aromatic hydrocarbon solvent S-150;

[0058] (3) adding hydrofluoric acid;

[0059] (4) Finally, add silane A1160, stir and mix evenly and discharge.

[0060] Component II: by mass percentage, PM-200 72%, urea-formaldehyde resin 4%, high boiling point aromatic hydrocarbon solvent S-15023%, phosphorus oxychloride 0.5%, silane GX01 0.5%.

[0061] (1) Befor...

Embodiment 3

[0067] Cold core box resin for high collapse cast aluminum engine block and preparation method thereof:

[0068] Component I: In mass percentage, phenyl ether phenolic resin 45%, furfuryl alcohol 8%, DBE 26%, high boiling point aromatic hydrocarbon solvent S-150 19%, hydrofluoric acid 1.5%, silane A1160 0.5%.

[0069] (1) add phenyl ether-type phenolic resin in the reaction kettle, then immediately add furfuryl alcohol, turn on stirring, and be warming up to 75-80 ℃ by the heating rate of 0.5 ℃ / min, heat preservation reaction 20-40min;

[0070] (2) reaction finishes, is cooled to below 60 ℃, adds DBE and high boiling point aromatic hydrocarbon solvent S-150;

[0071] (3) adding hydrofluoric acid;

[0072] (4) Finally, add silane A1160, stir and mix evenly and discharge.

[0073] Component II: by mass percentage, PM-200 73%, urea-formaldehyde resin 2%, high-boiling aromatic hydrocarbon solvent S-15024%, phosphorus oxychloride 0.5%, silane GX01 0.5%.

[0074] (1) Before produ...

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
viscosityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a cold core box resin for a high collapsibility cast aluminum engine cylinder block and a preparation method thereof and belongs to the technical field of automobile casting materials and aims to overcome the problem of poor collapsibility of resin and low normal temperature strength in the prior art and further overcomes the defects of being difficult to clean sand and high in rejection rate of casting in a process of manufacturing the cast aluminum engine. A component I is composed of a phenylate phenolic resin, furfuryl alcohol, DBE, a high boiling point arene solvent S-150, hydrofluoric acid and silane A1160, a component II is composed of PM-200, a urea resin, a high boiling point arene solvent S-150, phosphorus oxychloride and silane GX01, and a component III is a catalyst triethylamine. A cold core box resin bonding system prepared by the invention improves the high-temperature collapsibility of the resin greatly while guaranteeing normal temperature properties of the resins, so that the production efficiency and the production quality of a user are improved obviously and the rejection ratio in a user production process is reduced.

Description

technical field [0001] The invention belongs to the polymer field of casting material technology, and relates to a resin and a preparation method thereof, in particular to a cold core box resin for a high collapse cast aluminum engine block and a preparation method thereof. Background technique [0002] With the intensification of the energy crisis, automobiles are also developing in the direction of light weight, and the cast iron engine block for automobiles is gradually changing to the cast aluminum engine block. The triethylamine cold core box resin process has high modeling dimensional accuracy and fast curing speed, which is favored by automobile engine block casting enterprises. The casting temperature of cast iron at 1300-1400 °C has been reduced by nearly half. Due to the difference in casting temperature, different technical requirements have been put forward for the performance of the resin. It is required that the resin must have high strength before casting. Aft...

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 & AuthorityApplications(China)
IPC IPC(8): B22C1/20B22C1/22B22C1/26
CPCB22C1/20B22C1/26B22C1/2253B22C1/2246
Inventor熊高虎张丽王锐周百能杨红李文可张林郑丽苟鹏飞肖毅
Owner四川东树新材料有限公司