CN104325069A - Evanescent mode base paint for producing grate bar, and preparation technology of evanescent mode base paint - Google Patents
Evanescent mode base paint for producing grate bar, and preparation technology of evanescent mode base paint Download PDFInfo
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- CN104325069A CN104325069A CN201410719573.XA CN201410719573A CN104325069A CN 104325069 A CN104325069 A CN 104325069A CN 201410719573 A CN201410719573 A CN 201410719573A CN 104325069 A CN104325069 A CN 104325069A
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- base paint
- mode base
- weight ratio
- evanescent mode
- feeding
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention relates to an evanescent mode base paint for producing a grate bar, and a preparation technology of the evanescent mode base paint. The evanescent mode base paint is characterized by mainly comprising quartz powder with the meshes of 8-15, water, starch, white latex, sodium carboxymethyl cellulose and edible trona venenum, wherein the weight ratio of the quartz powder to the water to the starch to the white latex to the sodium carboxymethyl cellulose to the edible trona venenum is 100 to 75 to 40 to (1.8-2.3) to 8 to 2. The preparation technology of the evanescent mode base paint comprises the following steps: (1) fully mixing the quartz powder with the meshes of 8-15 with the water; (2) then feeding the corn starch by weight ratio, and continuously stirring while feeding; (3) then, feeding the white latex and the sodium carboxymethyl cellulose; (4) finally, feeding the edible trona venenum by weight ratio; (5) stirring the mixture obtained in the step (4) for 1 hour at the speed of 50-100 revolutions per minute. The paint prepared by the invention has enough refractoriness, chemical stability and heat stability, is high in adhesive capability and low in gas generation amount, and has good suspension property, brushing property, coating property and rheological property and high air permeability.
Description
Technical field
The invention belongs to grid section and produce casting technology field, particularly relate to a kind of grid section production evaporative pattern basic coating and manufacture craft.
Background technology
Grid section is the key fitment on sintering pallet, and the effect of grid section forms channel space with trolley breast plate, holds, carries mineral aggregate.The part that grid section contacts with mineral aggregate is upper surface, and the two ends on grid section top are stressed, play a supporting role.And two aspect effects are arranged at the bottom of grid section, being first the effect fixing grid section when overturning discharging, making it to come off; Next is the effect playing support when grid section top pressurized, can effectively prevent grid section from bending.The production of grid section generally adopts lost foam casting to process, in casting process coating select most important, otherwise the quality of product will be affected, existing coating refractory aggregate is generally selected and is not carried out powder, by adding binding agent, water and white glue with vinyl are configured, above-mentioned comparatively strict to its ratio requirement, be difficult to grasp, but also receive the impact of ambient temperature, if proportioning does not rise appropriately, so will affect it and be coated with performance, and then cause the grid section of casting to occur sand holes, the quality problems such as pore, design is a kind of for this reason reduces preparation difficulty, improve and be coated with performance, the grid section improving grid section yield rate is produced by evaporative pattern basic coating and manufacture craft.
Summary of the invention
The present invention provides a kind of preparation difficulty that reduces for solving in known technology the technical problem that exists, and improve and be coated with performance, the grid section improving grid section yield rate is produced by evaporative pattern basic coating and manufacture craft.
The technical scheme that the present invention takes for the technical problem existed in solution known technology is:
A kind of grid section is produced and is used evaporative pattern basic coating, it is characterized in that: mainly comprise order number be 8 ~ 15 silica flour, water, starch, white glue with vinyl, sodium carboxymethylcellulose and dietary alkali face, its weight ratio is: 100:75:40:1.8 ~ 2.3:8:2.
A manufacture craft for grid section production evaporative pattern basic coating, 1) be, by order number 8 ~ 15 silica flour pour in stirred vessel, then adding clear water according to above-mentioned weight ratio, when adding, continually to stir;
2), after mixing to be mixed, setting up and state weight ratio and add cornstarch, when adding, continually to stir;
3), after mixing to be mixed, white glue with vinyl and carboxymethylcellulose sodium solution is added;
4) finally dietary alkali face is added according to weight ratio;
5), by the mixture of above-mentioned 4th step, stir 1 hour according to 50 ~ 100 turns per minute.
The advantage that the present invention has and good effect are: because the present invention has the following advantages adopting the coating of technique scheme,
1, have good permeability, the gas that evaporative pattern gasification namely can be allowed to produce and liquid residue are permeated by dope layer or the excessive inside to coating, and the inflow of molten metal is obstructed;
2, there is good sintering fissility, anti-burnon and high temperature resistant metal liquid aggressivity;
3, the stability of casting mold during casting pouring is ensured, the intrusion of loose sand when effectively preventing liquid metal and apperance from replacing;
4, improve the rigidity of apperance, slightly, keep the stability of apperance, to obtain high-precision foundry goods;
5, its raw material be all nontoxic, pollution-free, have no irritating odor, resistance to water soak and depot;
6, the stability of its shape, when preventing moulding, the wearing and tearing apperance surface of flowing sand, improves the precision of product surface;
7, have enough refractoriness, chemical stability and heat endurance, adhesive ability is strong, and gas forming amount is low, has excellent suspension, good brushability, being coated with property, rheological characteristic and highly-breathable energy.
Detailed description of the invention
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, be described in detail as follows:
Embodiment 1; a kind of grid section is produced and is used evaporative pattern basic coating; it is characterized in that: mainly comprise order number be 8 ~ 15 silica flour, water, starch, white glue with vinyl, sodium carboxymethylcellulose and dietary alkali face, its weight proportion is: 100kg:75kg:40kg:1.8:8kg:2kg.
Embodiment 2; a kind of grid section is produced and is used evaporative pattern basic coating; it is characterized in that: mainly comprise order number be 8 ~ 15 silica flour, water, starch, white glue with vinyl, sodium carboxymethylcellulose and dietary alkali face, its weight ratio is: 200kg:150kg:80kg:2.3kg:16kg:4kg.
Embodiment 3; a kind of grid section is produced and is used evaporative pattern basic coating; it is characterized in that: mainly comprise order number be 8 ~ 15 silica flour, water, starch, white glue with vinyl, sodium carboxymethylcellulose and dietary alkali face, its weight ratio is: 50kg:37.5kg:20kg:0.9kg:4kg:1kg.
Above-mentioned selects silica flour as the refractory aggregate of evaporative pattern coating, and compare with the powder that do not come of existing application by experiment, it has better refractoriness, thermal coefficient of expansion, and chemical stability under high temperature, has no effect to health; But when actual selecting, suitable granularity be selected just to reach better technique effect, the granularity of silica flour of the present invention is preferably 4 ~ 15 orders.
The carrier of above-mentioned coating selects water, and it is prepared burden with other and mixes rear suspendability better, and cost is cheaper compared with alcohols coating, and without flash-point, nontoxic, harmless, pollution-free, non-corrosive property.
The binding agent of above-mentioned coating does not carry out powder coating and compares with existing and still adopt white glue with vinyl as binding agent main.
Above-mentioned coating, in order to prevent the precipitation of refractory aggregate silica flour in coating, adds sodium carboxymethylcellulose, in addition, sodium carboxymethylcellulose also effectively ensures the stability of other material, give full play to the effect of coating, be conducive to applying, improve the quality of coating and cast(ing) surface.
Starch in above-mentioned coating and use alkali face with the use of, effectively improve the viscosity of coating, what enhance coating is coated with performance, in addition, shortens drying time, also has certain alkali resistance and non-oxidizability simultaneously.
A manufacture craft for grid section production evaporative pattern basic coating, 1) be, by order number 8 ~ 15 silica flour pour in stirred vessel, then adding clear water according to above-mentioned weight ratio, when adding, continually to stir;
2), after mixing to be mixed, setting up and state weight ratio and add cornstarch, when adding, continually to stir;
3), after mixing to be mixed, white glue with vinyl and carboxymethylcellulose sodium solution is added;
4) finally dietary alkali face is added according to weight ratio;
5), by the mixture of above-mentioned 4th step, stir 1 hour according to 50 ~ 100 turns per minute.
The coating of technique scheme is adopted to have the following advantages,
1, have good permeability, the gas that evaporative pattern gasification namely can be allowed to produce and liquid residue are permeated by dope layer or the excessive inside to coating, and the inflow of molten metal is obstructed;
2, there is good sintering fissility, anti-burnon and high temperature resistant metal liquid aggressivity;
3, the stability of casting mold during casting pouring is ensured, the intrusion of loose sand when effectively preventing liquid metal and apperance from replacing;
4, improve the rigidity of apperance, slightly, keep the stability of apperance, to obtain high-precision foundry goods;
5, its raw material be all nontoxic, pollution-free, have no irritating odor, resistance to water soak and depot;
6, the stability of its shape, when preventing moulding, the wearing and tearing apperance surface of flowing sand, improves the precision of product surface;
7, have enough refractoriness, chemical stability and heat endurance, adhesive ability is strong, and gas forming amount is low, has excellent suspension, good brushability, being coated with property, rheological characteristic and highly-breathable energy.
8, adopt single mixing method to be configured in manufacturing process of the present invention, improve on the one hand the abundant mixing of single raw material, in addition, avoid extraneous mixed degree other reasons such as grade and to affect between them bad reaction each other.
The above is only to preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, every according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all belong in the scope of technical solution of the present invention.
Claims (2)
1. grid section is produced and use an evaporative pattern basic coating, it is characterized in that: mainly to comprise order number be 8 ~ 15 is silica flour, water, starch, white glue with vinyl, sodium carboxymethylcellulose and dietary alkali face, and its weight ratio is: 100:75:40:1.8 ~ 2.3:8:2.
2. the collocation method of basic coating according to claim 1 and 2, is characterized in that: its key step comprises:
1) be, by order number 8 ~ 15 silica flour pour in stirred vessel, then adding clear water according to above-mentioned weight ratio, when adding, continually to stir;
2), after mixing to be mixed, setting up and state weight ratio and add cornstarch, when adding, continually to stir;
3), after mixing to be mixed, white glue with vinyl and carboxymethylcellulose sodium solution is added;
4) finally dietary alkali face is added according to weight ratio;
5), by the mixture of above-mentioned 4th step, stir 1 hour according to 50 ~ 100 turns per minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410719573.XA CN104325069A (en) | 2014-12-02 | 2014-12-02 | Evanescent mode base paint for producing grate bar, and preparation technology of evanescent mode base paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410719573.XA CN104325069A (en) | 2014-12-02 | 2014-12-02 | Evanescent mode base paint for producing grate bar, and preparation technology of evanescent mode base paint |
Publications (1)
| Publication Number | Publication Date |
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| CN104325069A true CN104325069A (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410719573.XA Pending CN104325069A (en) | 2014-12-02 | 2014-12-02 | Evanescent mode base paint for producing grate bar, and preparation technology of evanescent mode base paint |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113580835A (en) * | 2021-07-22 | 2021-11-02 | 酒泉职业技术学院(甘肃广播电视大学酒泉市分校) | Method for manufacturing non-cracking mud-skin painting mud board |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3520182A1 (en) * | 1985-06-04 | 1986-12-04 | Stein Becker GmbH, 5461 Vettelschoß | Composite-cast plates for preventing abrasive wear |
| CN1151424A (en) * | 1995-11-30 | 1997-06-11 | 聂里 | Multifunctional paint |
| CN1475593A (en) * | 2003-06-25 | 2004-02-18 | 广东省韶关钢铁集团有限公司 | Grate for sintoring trolley and its manufacturing method |
| CN101698230A (en) * | 2009-10-24 | 2010-04-28 | 内蒙古科技大学 | Method for preparing surface composite sinterer grate bars |
| CN102605289A (en) * | 2012-03-13 | 2012-07-25 | 天津得利伟机械制造有限公司 | Fire grate strip of sintering machine and manufacturing method of fire grate strip |
-
2014
- 2014-12-02 CN CN201410719573.XA patent/CN104325069A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3520182A1 (en) * | 1985-06-04 | 1986-12-04 | Stein Becker GmbH, 5461 Vettelschoß | Composite-cast plates for preventing abrasive wear |
| CN1151424A (en) * | 1995-11-30 | 1997-06-11 | 聂里 | Multifunctional paint |
| CN1475593A (en) * | 2003-06-25 | 2004-02-18 | 广东省韶关钢铁集团有限公司 | Grate for sintoring trolley and its manufacturing method |
| CN101698230A (en) * | 2009-10-24 | 2010-04-28 | 内蒙古科技大学 | Method for preparing surface composite sinterer grate bars |
| CN102605289A (en) * | 2012-03-13 | 2012-07-25 | 天津得利伟机械制造有限公司 | Fire grate strip of sintering machine and manufacturing method of fire grate strip |
Non-Patent Citations (2)
| Title |
|---|
| 宿成君等: "消失模铸造工艺中涂料的选择与配制", 《煤矿机械》 * |
| 黄光胜等: "消失模铸造水基涂料的研制", 《重庆大学学报（自然科学版）》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113580835A (en) * | 2021-07-22 | 2021-11-02 | 酒泉职业技术学院(甘肃广播电视大学酒泉市分校) | Method for manufacturing non-cracking mud-skin painting mud board |
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