Unlock instant, AI-driven research and patent intelligence for your innovation.

Foundry binder and preparation method thereof

A binder preparation and binder technology, which is applied in the field of animal glue binder preparation for casting, can solve the problems of easy gelation, high viscosity of casting binder, and limitations of casting production application, etc., and achieve simple production process , high tensile strength and low cost

Active Publication Date: 2018-02-16
阜新市万达铸业有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the main technical problem of animal glue binder is that it is easy to gel at room temperature, and it needs to be heated to melt the binder during use, so it cannot be directly used in the production of molding cores.
Foundry production applications are greatly limited
In order to solve the above problems, some binders have appeared in the prior art, such as the casting binders provided by CN101274351 and Shi Jingyu, He Zhenming and others. This binder has the characteristics of environmental protection and good stability, but the casting binder viscosity High, poor fluidity after sand mixing

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

[0034] Binder synthesis method:

[0035] (1) Mix animal bone glue, water and anhydrous potassium carbonate into the reaction kettle at a mass ratio of 1:2:0.05, and stir at a medium speed and a constant speed for 60 minutes at 50°C to form animal glue;

[0036] (2) Heat up to 80°C, add 1.5g sodium pyrophosphate, 2.6g sodium tripolyphosphate, 1.9g sodium hexametaphosphate, and stir at a medium speed for 60 minutes;

[0037] (3) Cool down to 60°C, and after reacting for 50 minutes, slowly add 10.0 g of furfuryl alcohol to the glue and let it react for 20 minutes;

[0038] (4) After the above reaction is completed, cool to room temperature to obtain the animal glue binder for casting.

[0039] Properties of animal glue binder:

[0040] Viscosity: 530 mpa.s

[0041] Preparation of "8" character sample:

[0042] Weigh 30g of the prepared animal glue binder, 1000g of raw sand, and mix the sand for 120s, and make "8" samples in a hammer-type prototype maker, harden the prepared s...

Embodiment 2

[0044] Binder synthesis method:

[0045] (1) Mix animal bone glue, water and anhydrous potassium carbonate into the reaction kettle at a mass ratio of 1:1.4:0.07, stir at a medium speed and a constant speed for 40 minutes at 50°C to form animal glue;

[0046] (2) Heat up to 80°C, add 2.7g sodium pyrophosphate, 2.4g sodium tripolyphosphate, 2.0g sodium hexametaphosphate, and stir at medium speed and uniform speed for 80min;

[0047] (3) Cool down to 60°C, and after reacting for 52 minutes, slowly add 14.0g of furfuryl alcohol to the glue, and let it react for 28 minutes;

[0048] (4) After the above reaction is completed, cool to room temperature to obtain the animal glue binder for casting.

[0049] Properties of animal glue binder:

[0050] Viscosity: 725 mpa.s

[0051] Preparation of "8" character sample:

[0052] Weigh 30g of the prepared animal glue binder, 1000g of raw sand, and mix the sand for 120s, and make "8" samples in a hammer-type prototype maker, harden the p...

Embodiment 3

[0054] Binder synthesis method:

[0055] (1) Mix animal bone glue, water and anhydrous potassium carbonate in a mass ratio of 1:1.8:0.8 and add to the reaction kettle, stir at a medium speed and a constant speed at 50°C for 50 minutes to form animal glue;

[0056] (2) Heat up to 80°C, add 2.8g sodium pyrophosphate, 2.1g sodium tripolyphosphate, 3.1g sodium hexametaphosphate, and stir at medium speed and uniform speed for 90min;

[0057] (3) Cool down to 60°C, and after reacting for 60 minutes, slowly add 15.0 g of furfuryl alcohol to the glue, and let it react for 30 minutes;

[0058] (4) After the above reaction is completed, cool to room temperature to obtain the animal glue binder for casting.

[0059] Properties of animal glue binder:

[0060] Viscosity: 635mpa.s

[0061] Preparation of "8" character sample:

[0062] Weigh 30g of the prepared animal glue binder, 1000g of raw sand, and mix the sand for 120s, and make "8" samples in a hammer-type prototype maker, harden th...

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
tensile strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
Login to View More

Abstract

Casting binder and its preparation method, its formula contains: 30.0-40.0 weight percent of animal bone glue, 5.0-8.0 weight percent of anhydrous potassium carbonate, 6.0-8.0 weight percent of phosphate, 10.0-15.0 weight percent of furfuryl alcohol and water balance. It has rich raw materials, low cost, simple production process, biodegradable, non-toxic, and does not pollute the environment, and is an environmentally friendly bonding material. The synthesis and preparation process of the binder in the present invention is all carried out in the reaction kettle, by adding anhydrous potassium carbonate to promote the degradation of animal glue macromolecules, and carrying out compound modification of phosphate and furfuryl alcohol, so that the modified animal glue can be bonded The agent has the characteristics of liquid state at room temperature and high tensile strength.

Description

technical field [0001] The invention relates to a preparation method of a binder, in particular to a preparation method of an animal glue binder for casting. Background technique [0002] Animal glue is a kind of natural polymer bonding material, which has the characteristics of good biodegradability, non-toxicity, and no pollution to the environment, and has a wide range of raw materials and low cost. However, the main technical problem of the animal glue binder is that it is easy to gel at room temperature, and it needs to be heated to melt the binder during use, so it cannot be directly used in the production of molding cores. Casting production applications have been greatly limited. In order to solve the above problems, some binders have appeared in the prior art, such as the casting binders provided by CN101274351 and Shi Jingyu, He Zhenming and others. This binder has the characteristics of environmental protection and good stability, but the casting binder viscosity...

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): B22C1/16
CPCB22C1/167
Inventor 刘伟华王天舒任玉艳李英民
Owner 阜新市万达铸业有限公司