CN105817578A - High-breathability mica powder modified quartz-based lost foam paint and preparation method thereof - Google Patents
High-breathability mica powder modified quartz-based lost foam paint and preparation method thereof Download PDFInfo
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- CN105817578A CN105817578A CN201610359453.2A CN201610359453A CN105817578A CN 105817578 A CN105817578 A CN 105817578A CN 201610359453 A CN201610359453 A CN 201610359453A CN 105817578 A CN105817578 A CN 105817578A
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- mica powder
- powder
- parts
- breathability
- diisocyanate
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- 239000000843 powder Substances 0.000 title claims abstract description 39
- 239000010445 mica Substances 0.000 title claims abstract description 26
- 229910052618 mica group Inorganic materials 0.000 title claims abstract description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims description 7
- 239000006260 foam Substances 0.000 title abstract description 10
- 239000003973 paint Substances 0.000 title abstract description 10
- 239000010453 quartz Substances 0.000 title abstract 5
- 239000011248 coating agent Substances 0.000 claims abstract description 22
- 238000000576 coating method Methods 0.000 claims abstract description 22
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 19
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 125000005442 diisocyanate group Chemical group 0.000 claims abstract description 11
- 239000010451 perlite Substances 0.000 claims abstract description 11
- 235000019362 perlite Nutrition 0.000 claims abstract description 11
- 239000011787 zinc oxide Substances 0.000 claims abstract description 9
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims abstract description 7
- 229920000881 Modified starch Polymers 0.000 claims abstract description 7
- 239000004368 Modified starch Substances 0.000 claims abstract description 7
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 7
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims abstract description 7
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims abstract description 7
- ONCZQWJXONKSMM-UHFFFAOYSA-N dialuminum;disodium;oxygen(2-);silicon(4+);hydrate Chemical compound O.[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Na+].[Al+3].[Al+3].[Si+4].[Si+4].[Si+4].[Si+4] ONCZQWJXONKSMM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 235000019426 modified starch Nutrition 0.000 claims abstract description 7
- 229940080314 sodium bentonite Drugs 0.000 claims abstract description 7
- 229910000280 sodium bentonite Inorganic materials 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 11
- 229910052646 quartz group Inorganic materials 0.000 claims description 11
- 230000004048 modification Effects 0.000 claims description 9
- 238000012986 modification Methods 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 239000013078 crystal Substances 0.000 claims description 8
- 239000002105 nanoparticle Substances 0.000 claims description 8
- 235000013312 flour Nutrition 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 239000012467 final product Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 235000011837 pasties Nutrition 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 2
- 229910021392 nanocarbon Inorganic materials 0.000 abstract 3
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 abstract 1
- 238000005245 sintering Methods 0.000 description 13
- 238000005452 bending Methods 0.000 description 3
- 208000002352 blister Diseases 0.000 description 3
- 238000010114 lost-foam casting Methods 0.000 description 3
- 206010039509 Scab Diseases 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000004523 agglutinating effect Effects 0.000 description 1
- 239000012615 aggregate Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- -1 carrier Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 208000030208 low-grade fever Diseases 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000005543 nano-size silicon particle Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paints Or Removers (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention discloses high-breathability mica powder modified quartz-based lost foam paint. The high-breathability mica powder modified quartz-based lost foam paint is prepared from, by weight, 100-102 parts of quartz powder, 0.9-1.1 parts of modified starch, 0.9-1.1 parts of carboxymethyl cellulose, 2.4-2.6 parts of sodium bentonite, 0.9-1 part of mica powder, 0.8-0.9 part of tetrapod-shaped zinc oxide whiskers, 0.9-1.1 parts of silica sol, 10-13 parts of alcohol, a defined amount of water, 0.5-0.6 part of diisocyanate, 2.3-2.6 parts of expanded perlite, and 0.5-0.6 part of nano carbon. According to the high-breathability mica powder modified quartz-based lost foam paint, the expanded perlite is modified with the diisocyanate and the nano carbon, the diisocyanate can be gasified during casting, and more pores are formed; the perlite is porous, and thus channels can be provided for gas exhaust; and a small amount of redundant gas can be adsorbed by the nano carbon after cooling, the breathability of a coating is improved, and pores of castings are reduced.
Description
Technical field
The present invention relates to lost foam paint technical field, particularly relate to a kind of highly-breathable mica powder modification quartz group lost mould coating and preparation method thereof.
Background technology
Lost foam casting is the foundry engieering of a kind of Near net shape, and coating is the key point of lost foam casting, and the quality of coating property is directly connected to the quality of foundry goods.Lost foam paint is typically made up of refractory aggregate, binding agent, suspending agent, carrier, additive.Silica flour is widely used on lost foam casting as refractory aggregate cheap and easy to get, but because sintering character is poor so that it is application receives certain restriction.And the principle that lost foam paint is at the beginning of design should sinter exactly, peel off again.If sintering character can be poor under pouring temperature for refractory aggregate, then can not form the liquid phase of q.s.So coating cannot form densification and have the sinter layer of sufficient intensity, bears incessantly molten metal washing away when cast, corrosion function, and molten metal can pass through coating erosion casting mold, and foundry goods is easily generated the defects such as scab.Even if not causing scab the most easily to produce coating be bonded at the phenomenon being not easily stripped on foundry goods.The major measure improving lost foam paint sintering character has: 1. introduce suitable sintering aid, utilizes the liquid phase that sintering aid is formed, and reaches the purpose accelerating material diffusion with acceleration of sintering；2. formed composite aggregate, fusing point reduction and the temperature starting to sinter by the refractory aggregate that fusing point is different also to decrease.If selecting suitable composite aggregate and proportioning, then coating can be made to produce a certain degree of sintering under pouring temperature.This problem uses mica powder to improve the sintering character of quartz group lost mould coating as sintering aid." mica powder impact on quartz group lost mould coating sintering character " literary composition have developed a kind of lost foam paint with high refractoriness and low grade fever's node, and this coating has good sintering character and stripping performance.
But Muscovitum bad dispersibility in coating, suspension are poor, easily cause the bending strength after sintering uneven, and stripping performance is the most uneven, and Muscovitum slabbing, can obstructing air holes, affect gas and discharges, cause bleb phenomenon, need improvement.
Additionally also need to improve the problems such as the hardness of coating, compactness, elevated temperature strength, crack resistance, breathability, bending strength, sag resistance, brushing performance, agglutinating property along with the progress of foundry engieering.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of highly-breathable mica powder modification quartz group lost mould coating and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of highly-breathable mica powder modification quartz group lost mould coating, is prepared by the raw materials in: silica flour 100-102, modified starch 0.9-1.1, carboxymethyl cellulose 0.9-1.1, sodium bentonite 2.4-2.6, mica powder 0.9-1, four acicular type zinc oxide crystal whisker 0.8-0.9, Ludox 0.9-1.1, ethanol 10-13, water are appropriate, diisocyanate 0.5-0.6, expanded perlite 2.3-2.6, nano-sized carbon 0.5-0.6.
The preparation method of described highly-breathable mica powder modification quartz group lost mould coating, comprises the following steps:
(1) Ludox is added in ethanol, stir, add mica powder to stir, be heated to 60-70 DEG C, add four acicular type zinc oxide crystal whisker while stirring, it is heated to 70-75 DEG C, ultrasonic disperse 3-4 minute, continues stirring complete to ethanol volatilization, pulverizes, cross 100-150 mesh sieve, obtain modified micaceous powder；
(2) diisocyanate is less than 1 μm with expanded perlite mixed grinding to particle diameter, then mixes with nano-sized carbon, grind uniformly, obtain powder；
(3) modified starch, carboxymethyl cellulose, sodium bentonite are added to the water, stir, add described modified micaceous powder and described powder, stir, obtain mixed material；
(4) described mixed material and other leftover materials are mixed into pasty state, to obtain final product.
The invention have the advantage that the application uses Ludox, four acicular type zinc oxide crystal whisker to be modified mica powder, define on mica powder surface nano silicon and and four acicular type zinc oxide crystal whisker, the dispersion stabilization making mica powder improves, and whisker can improve the caking property of mica powder and silica flour, improve cracking resistance, there is whisker to support after sintering and define uniform pore, promote that gas is discharged, reduce bleb.By using diisocyanate, nano-sized carbon that expanded perlite is modified, when casting, diisocyanate can gasify, form more hole, and perlite is porous, unnecessary a small amount of gas can be adsorbed after the cooling period, under the common effect of three kinds of materials for the offer passage that sheds of gas, nano-sized carbon, improve the breathability of coating, reduce bleb and produce.
Detailed description of the invention
A kind of highly-breathable mica powder modification quartz group lost mould coating, is made up of the raw material of following weight portion (kilogram): silica flour 100, modified starch 0.9, carboxymethyl cellulose 0.9, sodium bentonite 2.4, mica powder 0.9, four acicular type zinc oxide crystal whisker 0.8, Ludox 0.9, ethanol 10, water are appropriate, diisocyanate 0.5, expanded perlite 2.3, nano-sized carbon 0.5.
The preparation method of described highly-breathable mica powder modification quartz group lost mould coating, comprises the following steps:
(1) Ludox is added in ethanol, stir, add mica powder and stir, be heated to 60 DEG C, add four acicular type zinc oxide crystal whisker while stirring, be heated to 70 DEG C, ultrasonic disperse 3 minutes, continues stirring complete to ethanol volatilization, pulverize, cross 100 mesh sieves, obtain modified micaceous powder；
(2) diisocyanate is less than 1 μm with expanded perlite mixed grinding to particle diameter, then mixes with nano-sized carbon, grind uniformly, obtain powder；
(3) modified starch, carboxymethyl cellulose, sodium bentonite are added to the water, stir, add described modified micaceous powder and described powder, stir, obtain mixed material；
(4) described mixed material and other leftover materials are mixed into pasty state, to obtain final product.
Being sintered at 1500 DEG C by this embodiment lost foam paint, observed by microscope, internal a small amount of macroscopic void and the most tiny small holes, in a block entirety, fissility has reached I grade, and bending strength is 7.9MPa.
Claims (2)
1. a highly-breathable mica powder modification quartz group lost mould coating, it is characterised in that: it is prepared by the raw materials in: silica flour 100-102, modified starch 0.9-1.1, carboxymethyl cellulose 0.9-1.1, sodium bentonite 2.4-2.6, mica powder 0.9-1, four acicular type zinc oxide crystal whisker 0.8-0.9, Ludox 0.9-1.1, ethanol 10-13, water are appropriate, diisocyanate 0.5-0.6, expanded perlite 2.3-2.6, nano-sized carbon 0.5-0.6.
The preparation method of highly-breathable mica powder modification quartz group lost mould coating the most according to claim 1, it is characterised in that comprise the following steps:
(1) Ludox is added in ethanol, stir, add mica powder to stir, be heated to 60-70 DEG C, add four acicular type zinc oxide crystal whisker while stirring, it is heated to 70-75 DEG C, ultrasonic disperse 3-4 minute, continues stirring complete to ethanol volatilization, pulverizes, cross 100-150 mesh sieve, obtain modified micaceous powder；
(2) diisocyanate is less than 1 μm with expanded perlite mixed grinding to particle diameter, then mixes with nano-sized carbon, grind uniformly, obtain powder；
(3) modified starch, carboxymethyl cellulose, sodium bentonite are added to the water, stir, add described modified micaceous powder and described powder, stir, obtain mixed material；
(4) described mixed material and other leftover materials are mixed into pasty state, to obtain final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610359453.2A CN105817578A (en) | 2016-05-27 | 2016-05-27 | High-breathability mica powder modified quartz-based lost foam paint and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610359453.2A CN105817578A (en) | 2016-05-27 | 2016-05-27 | High-breathability mica powder modified quartz-based lost foam paint and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105817578A true CN105817578A (en) | 2016-08-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610359453.2A Withdrawn CN105817578A (en) | 2016-05-27 | 2016-05-27 | High-breathability mica powder modified quartz-based lost foam paint and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN105817578A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380815A (en) * | 2018-05-24 | 2018-08-10 | 靖江市黎明铸造材料厂 | Lost foam casting hardens ghost coating and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014719A (en) * | 2014-05-09 | 2014-09-03 | 方学军 | High-performance alcohol-base casting paint and production method thereof |
| CN104084525A (en) * | 2014-06-16 | 2014-10-08 | 芜湖市鸿坤汽车零部件有限公司 | Nano titanium oxide alcohol-based casting coating and producing method thereof |
| CN104277633A (en) * | 2014-10-20 | 2015-01-14 | 芜湖县双宝建材有限公司 | Nano insulating coating |
| CN104877468A (en) * | 2015-06-27 | 2015-09-02 | 任碧龙 | Fireproof coating |
| CN104946112A (en) * | 2015-06-26 | 2015-09-30 | 芜湖县双宝建材有限公司 | Special corrosion-resistant high-flame-retardancy paint for chemical equipment |
| CN105131665A (en) * | 2015-08-03 | 2015-12-09 | 宜兴市巨人涂料有限公司 | Aqueous inorganic zinc-rich prime coat and preparation method thereof |
-
2016
- 2016-05-27 CN CN201610359453.2A patent/CN105817578A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014719A (en) * | 2014-05-09 | 2014-09-03 | 方学军 | High-performance alcohol-base casting paint and production method thereof |
| CN104084525A (en) * | 2014-06-16 | 2014-10-08 | 芜湖市鸿坤汽车零部件有限公司 | Nano titanium oxide alcohol-based casting coating and producing method thereof |
| CN104277633A (en) * | 2014-10-20 | 2015-01-14 | 芜湖县双宝建材有限公司 | Nano insulating coating |
| CN104946112A (en) * | 2015-06-26 | 2015-09-30 | 芜湖县双宝建材有限公司 | Special corrosion-resistant high-flame-retardancy paint for chemical equipment |
| CN104877468A (en) * | 2015-06-27 | 2015-09-02 | 任碧龙 | Fireproof coating |
| CN105131665A (en) * | 2015-08-03 | 2015-12-09 | 宜兴市巨人涂料有限公司 | Aqueous inorganic zinc-rich prime coat and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 康健等: "云母粉对石英基消失模涂料烧结性能的影响", 《特种铸造及有色合金》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108380815A (en) * | 2018-05-24 | 2018-08-10 | 靖江市黎明铸造材料厂 | Lost foam casting hardens ghost coating and preparation method thereof |
| CN108380815B (en) * | 2018-05-24 | 2020-06-16 | 靖江市黎明铸造材料厂 | Lost foam casting hardening hollow shell coating and preparation method thereof |
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Application publication date: 20160803 |
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