CN107030252A - A kind of cast steel evaporative pattern surface coating material - Google Patents
A kind of cast steel evaporative pattern surface coating material Download PDFInfo
- Publication number
- CN107030252A CN107030252A CN201710449328.5A CN201710449328A CN107030252A CN 107030252 A CN107030252 A CN 107030252A CN 201710449328 A CN201710449328 A CN 201710449328A CN 107030252 A CN107030252 A CN 107030252A
- Authority
- CN
- China
- Prior art keywords
- parts
- coating
- cast steel
- pattern surface
- evaporative pattern
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
Abstract
Field is manufactured the present invention relates to coating, and in particular to a kind of cast steel evaporative pattern surface coating material.Cast steel evaporative pattern surface coating material needs preferable gas permeability and higher intensity and preferable suspension.The present invention includes 60~80 parts of bauxite, 20~40 parts of zirconium English powder, 2~5 parts of sodium base soil, 0.5~1.0 part of sanlose, 0.5~1.0 part of phenolic resin, 0.1~0.5 part of PVB resin, 2~6 parts of Ludox, 1~2 part of polyoxethylene octylphenyl phenol ether, 2~3 parts of n-butanol, 1~3 part of talcum powder.Good permeability after coating produced by the present invention is brushed, coating intensity is high, coating suspension is good.
Description
Technical field
Field is made the present invention relates to coating, and in particular to a kind of cast steel evaporative pattern surface coating material.
Background technology
Lost foam casting(Also known as cavityless casting)It is by the paraffin similar to casting dimension shape or bubbles model bonding group
Synthetic model cluster, after brushing fireproof coating and drying, is embedded in vibration molding in drystone sand, pours into a mould under negative pressure, make model gas
Change, liquid metals occupies modal position, and the novel casting method of casting is formed after solidification cooling.Traditional cast paint simply exists
Stop buffer action is played in the middle of casting and casting mold, is reached under Sand sticking-resistant purpose, but conventional cast coating high temperature due to adhesive force
Difference, low intensity, fire resisting are poor, gas forming amount is big, easily cause casting and produce the defects such as scab, sand holes, stomata, carbon slag.
Modeling Material used in lost foam casting is usually common drystone sand, and foamed polystyrene pattern is replaced by liquid metal
When, a large amount of gases that thermal decomposition is produced will can be discharged outside casting mold by space between dry sand.However, work of the liquid metal in negative pressure
The space that is easily penetrated under between dry sand and form penetration.In order to avoid producing penetration, evaporative pattern apperance surface
One layer of fireproof coating must be coated with.During casting-up, this layer of fireproof coating be between molten metal and molding sand, it is right
Gasification, molten metal filling and formation of casting of evaporative pattern apperance etc. are played a very important role.
Surface coating material is one of key technology of lost foam casting, and the quality of coating directly affects the matter of disappearance die casting
Amount.Carburetting, hydrogenation, stomata of steel-casting etc. are the problems of lost foam casting, and which greatly limits lost foam cast steel
The application of technology.In the production of steel-casting lost foam casting, coating is to influence a key factor of steel casting surface carburetting.Apply
The good permeability of the bed of material, can reduce carbon increasing amount, and the composition of coating is different, and its gas permeability is also different.In addition, lost foam casting is applied
Material also require have high intensity, good suspension, heat endurance, easily come off from cast(ing) surface, the low spy of simple to operate, cost
Property, particularly water based paint.And for lost foam cast steel, more require that dope layer has good gas permeability, to reduce surface increasing
Carbon amounts.
Cast steel evaporative pattern surface coating material is surveyed in the case where meeting production requirement with STZ types direct reading permmeter
It is fixed, its gas permeability must not must not be dried less than 80, its suspension less than 90%, coating after must not peeling and cracking, intensity detection not
Less than 7.5 kilograms.
By detection, at present the gas permeability of common cast steel evaporative pattern surface coating material 85 or so, suspension 92% or so,
8 kilograms or so of intensity, non-scale does not ftracture after coating is dried.
The content of the invention
It is an object of the invention to provide a kind of cast steel evaporative pattern surface coating material, to solve what is mentioned in above-mentioned background technology
Problem.
To achieve the above object, the present invention provides following technical scheme:A kind of cast steel evaporative pattern surface coating material, comprising with
Lower raw material composition:Bauxite, zirconium English powder, sodium base soil, sanlose, phenolic resin, PVB resin, Ludox, polyoxy
Ethene octyl phenol ether, n-butanol, talcum powder.
Bauxite got along well under pouring temperature metal oxide generation low melting point, while molten steel and its oxide are to aluminium
The wellability of alumina is than relatively low, and thus be accordingly used in coating can play good anti-burnon effect.The sintering temperature of zirconium English powder and fusing
There is a wider temperature range between temperature, this is an important feature of zirconium English powder, be conducive to obtaining sinter coating.Zirconium English
Powder shows as neutral and faintly acid at high temperature, and thermal coefficient of expansion is small, not with iron oxide chemically reactive, is conducive in Big Steel Castings
Scab defect is prevented on steel part.
Make lost foam paint layer that there is higher strength of coating from high/low temperature compound binding agent, using phenolic resin and
PVB is combined, and has higher intensity [5 than being used alone..Start softening when Ludox is more than 1 000 DEG C, there is coating
Good toughness, in casting process, erosion and crack resistance with good anti-metal liquid, the high temperature for improving coating are strong
Degree.Therefore low temperature bonding agent is done in selection phenolic resin and PVB combinations, and Ludox does high-temperature agglomerant.
Make composite suspension agent from sodium base soil and sodium carboxymethylcellulose.Sodium base soil particle particle very little, Water Molecular Adsorption
On its surface, and enter formation colloid particle between crystal layer, the particle forms space net structure in colloidal solution, makes sodium base
Soil paste has yield value, and coating particles particle is difficult, it is ensured that the suspension of coating is preferable.
It is preferred that, in above-mentioned coating, the weight ratio of bauxite and zirconium English powder is 7:3 .
It is preferred that, in above-mentioned coating, described talcum powder accounts for the 2% of coating gross weight.
It is preferred that, the raw material comprising following weight decile is constituted in above-mentioned coating:60~80 parts of bauxite, zirconium English powder 20~
40 parts, 2~5 parts of sodium base soil, 0.5~1.0 part of sanlose, 0.5~1.0 part of phenolic resin, PVB resin 0.1~
0.5 part, 2~6 parts of Ludox, 1~2 part of polyoxethylene octylphenyl phenol ether, 2~3 parts of n-butanol, 1~3 part of talcum powder.
It is preferred that, the raw material comprising following weight decile is constituted in above-mentioned coating:70 parts of bauxite, 30 parts of zirconium English powder, sodium
5 parts of base soil, 0.7 part of sanlose, 0.7 part of phenolic resin, 0.3 part of PVB resin, 4 parts of Ludox, polyoxyethylene are pungent
1.3 parts of alkylphenol ether, 2.2 parts of n-butanol, 2 parts of talcum powder.
It is preferred that, in above-mentioned coating, described bauxite, zirconium English powder, sodium base soil, talcum powder be granularity for 280 mesh~
Powder between 400 mesh.
It is preferred that, in above-mentioned coating, the weight ratio that described phenolic resin has PVB resin is 7:3 .
The technological merit of the present invention is:
(1)Good permeability after coating is brushed.
(2)The intensity of coating is high.
(3)The suspension of coating is good.
Embodiment
The technical scheme of this patent is described in more detail with reference to specific embodiment.
Embodiment 1:
A kind of cast steel evaporative pattern surface coating material, it is as follows using process and performance detection step:
(1)Weigh sodium base native 2 parts, the carboxymethyl cellulose of 60 parts of the bauxite, 20 parts of the zirconium English powder of 300 mesh, 300 mesh of 300 mesh
0.5 part of sodium salt, 0.5 part of phenolic resin, 0.1 part of PVB resin, 2 parts of Ludox, 1 part of polyoxethylene octylphenyl phenol ether, n-butanol 2
Part, 1 part of the talcum powder of 300 mesh.Add water and be mixed into saturation mixing slurry.
(2)Gas permeability is detected
Sand permeability is determined with STZ types direct reading permmeter, the sieve of the mesh of last layer 140 is covered in one end of test specimen tube
Obturaged at net, side face seam with adhesive tape.During measure, with hairbrush by paint brush on screen cloth, coating layer thickness control 0.8~1
Between mm, after being air-dried through 12 h, then it is put on STZ instrument and determines its gas permeability, take the average value of 3 measurement results.By measurement knot
Fruit charges to table 1.
(3)Intensity detection
Four glasss of flow cups are applied to scribbling coating with NDJ-5(With hairbrush by paint brush on screen cloth, coating layer thickness control at 1 millimeter
, coating through 12 h air-dry)Glass plate on knockout (80~100 mesh), until galling coating expose glass plate untill, penetration hole diameter
For the mm of 1.O~1.5, knockout gross mass is weighed up, the quality index for judging dope layer surface strength is used as.Testing result is charged to
Table 1.
(4)Suspension is detected
Determined with 100 mL graduated cylinders.Slurry charge weight cylinder will be applied, untill the cm of scale 100,24 h is stood, reads sediment
Volume (%), is the suspension of the coating.Testing result is charged into table 1.
The measurement result 1 of table 1
Coating is originated | Gas permeability | Suspension | Intensity | Cracking Resistance of Coating |
Embodiment 1 | 103 | 95% | 8.5kg | Non-scale does not ftracture |
Common coating | 85 or so | 92% or so | 8.0kg | Non-scale does not ftracture |
Critical field | ≥80 | ≥90% | ≥7.5 kg | Non-scale does not ftracture |
According to the testing result of table 1, coating made from the present embodiment, intensity height, good permeability, suspension are good.
Embodiment 2:
A kind of cast steel evaporative pattern surface coating material, it is as follows using process and performance detection step:
(1)Weigh sodium base native 5 parts, the carboxymethyl cellulose of 80 parts of the bauxite, 40 parts of the zirconium English powder of 300 mesh, 300 mesh of 300 mesh
1 part of sodium salt, 1 part of phenolic resin, 0.5 part of PVB resin, 6 parts of Ludox, 2 parts of polyoxethylene octylphenyl phenol ether, 3 parts of n-butanol,
3 parts of the talcum powder of 300 mesh.Add water and be mixed into saturation mixing slurry.
(2)Gas permeability is detected
Sand permeability is determined with STZ types direct reading permmeter, the sieve of the mesh of last layer 140 is covered in one end of test specimen tube
Obturaged at net, side face seam with adhesive tape.During measure, with hairbrush by paint brush on screen cloth, coating layer thickness control 0.8~1
Between mm, after being air-dried through 12 h, then it is put on STZ instrument and determines its gas permeability, take the average value of 3 measurement results.By measurement knot
Fruit charges to table 2.
(3)Intensity detection
Four glasss of flow cups are applied to scribbling coating with NDJ-5(With hairbrush by paint brush on screen cloth, coating layer thickness control at 1 millimeter
, coating through 12 h air-dry)Glass plate on knockout (80~100 mesh), until galling coating expose glass plate untill, penetration hole diameter
For the mm of 1.O~1.5, knockout gross mass is weighed up, the quality index for judging dope layer surface strength is used as.Testing result is charged to
Table 2.
(4)Suspension is detected
Determined with 100 mL graduated cylinders.Slurry charge weight cylinder will be applied, untill the cm of scale 100,24 h is stood, reads sediment
Volume (%), is the suspension of the coating.Testing result is charged into table 2.
The measurement result 2 of table 2
Coating is originated | Gas permeability | Suspension | Intensity | Cracking Resistance of Coating |
Embodiment 1 | 115 | 96% | 8.7kg | Non-scale does not ftracture |
Common coating | 85 or so | 92% or so | 8.0kg | Non-scale does not ftracture |
Critical field | ≥80 | ≥90% | ≥7.5 kg | Non-scale does not ftracture |
According to the testing result of table 2, coating made from the present embodiment, intensity height, good permeability, suspension are good.
Embodiment 3:
A kind of cast steel evaporative pattern surface coating material, it is as follows using process and performance detection step:
(1)Weigh sodium base native 5 parts, the carboxymethyl cellulose of 70 parts of the bauxite, 30 parts of the zirconium English powder of 300 mesh, 300 mesh of 300 mesh
0.7 part of sodium salt, 0.7 part of phenolic resin, 0.3 part of PVB resin, 4 parts of Ludox, 1.3 parts of polyoxethylene octylphenyl phenol ether, n-butanol
2.2 parts, 2 parts of the talcum powder of 300 mesh.Add water and be mixed into saturation mixing slurry.
(2)Gas permeability is detected
Sand permeability is determined with STZ types direct reading permmeter, the sieve of the mesh of last layer 140 is covered in one end of test specimen tube
Obturaged at net, side face seam with adhesive tape.During measure, with hairbrush by paint brush on screen cloth, coating layer thickness control 0.8~1
Between mm, after being air-dried through 12 h, then it is put on STZ instrument and determines its gas permeability, take the average value of 3 measurement results.By measurement knot
Fruit charges to table 3.
(3)Intensity detection
Four glasss of flow cups are applied to scribbling coating with NDJ-5(With hairbrush by paint brush on screen cloth, coating layer thickness control at 1 millimeter
, coating through 12 h air-dry)Glass plate on knockout (80~100 mesh), until galling coating expose glass plate untill, penetration hole diameter
For the mm of 1.O~1.5, knockout gross mass is weighed up, the quality index for judging dope layer surface strength is used as.Testing result is charged to
Table 3.
(4)Suspension is detected
Determined with 100 mL graduated cylinders.Slurry charge weight cylinder will be applied, untill the cm of scale 100,24 h is stood, reads sediment
Volume (%), is the suspension of the coating.Testing result is charged into table 3.
The measurement result 3 of table 3
Coating is originated | Gas permeability | Suspension | Intensity | Cracking Resistance of Coating |
Embodiment 1 | 124 | 97% | 9.4kg | Non-scale does not ftracture |
Common coating | 85 or so | 92% or so | 8.0kg | Non-scale does not ftracture |
Critical field | ≥80 | ≥90% | ≥7.5 kg | Non-scale does not ftracture |
According to the testing result of table 3, coating made from the present embodiment, intensity height, good permeability, suspension are good.
The preferred embodiment to this patent is explained in detail above, but this patent is not limited to above-described embodiment,
In the knowledge that one of ordinary skill in the art possesses, it can also make each on the premise of this patent objective is not departed from
Plant change.It should be appreciated that all other specific embodiments based on the present invention program protection scope of the present invention it
It is interior.
Claims (7)
1. a kind of cast steel evaporative pattern surface coating material, it is characterised in that include following raw material composition:Bauxite, zirconium English powder, sodium base soil,
Sanlose, phenolic resin, PVB resin, Ludox, polyoxethylene octylphenyl phenol ether, n-butanol, talcum powder.
2. a kind of cast steel evaporative pattern surface coating material according to claim 1, it is characterised in that:The weight of bauxite and zirconium English powder
Amount is than being 7:3 .
3. a kind of cast steel evaporative pattern surface coating material according to claim 1, it is characterised in that:Described talcum powder accounts for coating
The 2% of gross weight.
4. a kind of cast steel evaporative pattern surface coating material according to claim 1, it is characterised in that include following weight decile
Raw material is constituted:60~80 parts of bauxite, 20~40 parts of zirconium English powder, 2~5 parts of sodium base soil, sanlose 0.5~1.0
Part, 0.5~1.0 part of phenolic resin, 0.1~0.5 part of PVB resin, 2~6 parts of Ludox, polyoxethylene octylphenyl phenol ether 1~2
Part, 2~3 parts of n-butanol, 1~3 part of talcum powder.
5. a kind of cast steel evaporative pattern surface coating material according to claim 1, it is characterised in that include following weight decile
Raw material is constituted:70 parts of bauxite, 30 parts of zirconium English powder, sodium base soil 5 parts, 0.7 part of sanlose, 0.7 part of phenolic resin,
0.3 part of PVB resin, 4 parts of Ludox, 1.3 parts of polyoxethylene octylphenyl phenol ether, 2.2 parts of n-butanol, 2 parts of talcum powder.
6. a kind of cast steel evaporative pattern surface coating material according to claim 4 or claim 5, it is characterised in that described
Bauxite, zirconium English powder, sodium base soil, talcum powder are granularity for the powder between the mesh of 280 mesh~400.
7. a kind of cast steel evaporative pattern surface coating material according to claim 1, it is characterised in that:Described phenolic resin has
The weight ratio of PVB resin is 7:3 .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710449328.5A CN107030252A (en) | 2017-06-14 | 2017-06-14 | A kind of cast steel evaporative pattern surface coating material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710449328.5A CN107030252A (en) | 2017-06-14 | 2017-06-14 | A kind of cast steel evaporative pattern surface coating material |
Publications (1)
Publication Number | Publication Date |
---|---|
CN107030252A true CN107030252A (en) | 2017-08-11 |
Family
ID=59542064
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710449328.5A Pending CN107030252A (en) | 2017-06-14 | 2017-06-14 | A kind of cast steel evaporative pattern surface coating material |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107030252A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108044022A (en) * | 2018-01-13 | 2018-05-18 | 合肥市瑞宏重型机械有限公司 | It is a kind of for alcohol-base paint of sand casting and preparation method thereof |
CN109794581A (en) * | 2019-03-25 | 2019-05-24 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | A kind of lost foam paint suitable for the casting of continuous Thin-Section Steel Castings |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103357813A (en) * | 2013-07-24 | 2013-10-23 | 翼城县福旺铸造实业有限公司 | Lost foam steel-casting paint formula and technology method thereof |
CN104550677A (en) * | 2014-12-16 | 2015-04-29 | 世林(漯河)冶金设备有限公司 | Cast iron evanescent mode paint and preparation method thereof |
CN105983646A (en) * | 2015-01-30 | 2016-10-05 | 重庆广鼎道路设施有限公司 | Lost foam casting paint |
-
2017
- 2017-06-14 CN CN201710449328.5A patent/CN107030252A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103357813A (en) * | 2013-07-24 | 2013-10-23 | 翼城县福旺铸造实业有限公司 | Lost foam steel-casting paint formula and technology method thereof |
CN104550677A (en) * | 2014-12-16 | 2015-04-29 | 世林(漯河)冶金设备有限公司 | Cast iron evanescent mode paint and preparation method thereof |
CN105983646A (en) * | 2015-01-30 | 2016-10-05 | 重庆广鼎道路设施有限公司 | Lost foam casting paint |
Non-Patent Citations (1)
Title |
---|
郭广思等: "消失模铸钢水基涂料的研制", 《特种铸造及有色合金》 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108044022A (en) * | 2018-01-13 | 2018-05-18 | 合肥市瑞宏重型机械有限公司 | It is a kind of for alcohol-base paint of sand casting and preparation method thereof |
CN109794581A (en) * | 2019-03-25 | 2019-05-24 | 中国人民解放军军事科学院国防工程研究院工程防护研究所 | A kind of lost foam paint suitable for the casting of continuous Thin-Section Steel Castings |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103341589B (en) | A kind of molding sand mixing technique for clay green sand molding | |
CN100450664C (en) | Production of large and super-critical steel-casting by using alkali phenolic aldehyde resin art | |
CN100577324C (en) | Casting method for heavy combustion engine II-stage diverter blade | |
CN106216595A (en) | A kind of coating for lost foam casting | |
US9518307B2 (en) | Method for the production of a refractory filter | |
CN106040965A (en) | Molding sand for casting | |
CN105312500A (en) | Mold casting method | |
CN104308156A (en) | Composition for three-dimensional print casting and applications thereof | |
CN107030252A (en) | A kind of cast steel evaporative pattern surface coating material | |
CN105347826A (en) | Continuous casting nozzle inner wall coating | |
CN104353789A (en) | Preparation method of sand casting sand core and prepared sand core | |
CN109261893A (en) | A kind of fused alumina zirconia alcohol-base foundry coating and preparation method thereof | |
CN103331408A (en) | Resin sand used for steel casting and preparation method thereof | |
CN109020607A (en) | A kind of dedusting ash ceramsite sand and the preparation method and application thereof | |
CN105537526A (en) | Forming method of flame-retarding insulating riser | |
CN103384653A (en) | Anti-veining additive for the production of casting molds and cores | |
CN108543917B (en) | A method of solving heat resisting steel product cavity defect | |
Nyembwe et al. | Suitability of a South African silica sand for three-dimensional printing of foundry moulds and cores | |
CN112275994B (en) | Silica sol for preparing precision casting shell | |
CN108788001A (en) | A kind of large size alloy cast steel part evaporative pattern water based paint | |
CN101509667A (en) | Grate production process for steel mill sintering apparatus | |
Reddy et al. | A new technique for measurement of the strength of ceramic shells in the precision casting process | |
CN103286258A (en) | Low-cost high-performance lost foam casting coating | |
CN109794581A (en) | A kind of lost foam paint suitable for the casting of continuous Thin-Section Steel Castings | |
CN114074177A (en) | Preparation method of investment precision casting shell for brittle material |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WD01 | Invention patent application deemed withdrawn after publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170811 |