CN106955967A - A kind of Ultra-low carbon casting resin sand casting masking paste - Google Patents
A kind of Ultra-low carbon casting resin sand casting masking paste Download PDFInfo
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- CN106955967A CN106955967A CN201710277053.1A CN201710277053A CN106955967A CN 106955967 A CN106955967 A CN 106955967A CN 201710277053 A CN201710277053 A CN 201710277053A CN 106955967 A CN106955967 A CN 106955967A
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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
Abstract
The invention discloses a kind of Ultra-low carbon casting resin sand casting masking paste, it is related to foundary industry technical field, is made up of the raw material of following parts by weight：25 30 parts of resin modified volcanic ash, 10 15 parts of atlapulgite, 5 10 parts of flyash, 35 parts of resin modified ceramic, 35 parts of carboxymethyl chitosan oligosaccharide, 23 parts of sepiolite fibre powder, 23 parts of molecular screen primary powder, 23 parts of flake asbestos, 12 parts of HPMA, 12 parts of nanometer titanium dioxide, 0.05 0.1 parts of yittrium oxide, 150 200 parts of water.Masking paste of the present invention plays excellent anti-carburizi ng effect using the dual CO gas-barrier layers formed, the Ultra-low carbon cast(ing) surface carburized layer thickness that sand casting is obtained after being sprayed through the masking paste is less than 2.5mm, and anti-carburizi ng effect is much better than presently commercially available masking paste.
Description
Technical field：
The present invention relates to foundary industry technical field, and in particular to a kind of Ultra-low carbon casting resin sand casting is applied with anti-carburizi ng
Material.
Background technology：
At present, the casting technique of China's casting mainly includes water-glass sand and the big formative technology of resin sand two.Utilize water glass
Glass sand casting technique production large-scale steel-casting avoids the casting flaw that carburized layer and sulphide layer occurs in cast(ing) surface, but waterglass
Sand surface strength is low and the easy moisture absorption, and mould surface stability is poor, and casting is easily produced because of sand washing, drop the casting such as to be mingled with and lack
Fall into；Steel casting surface is of poor quality simultaneously, and polishing allowance is big, and many during cheanser, metal waste is serious；And used sodium silicate sand
Regeneration is difficult, and substantial amounts of old sand is discharged, and causes serious environmental pollution and the waste of mineral resources.Resin sand technique by
The advantages of the intensity of sand mold is high, regenerating used recovery facilitates, it is used widely in the production of steel-casting；But resin sand
A large amount of CO, SO can be discharged in cast and cooling procedure2With a small amount of N2Deng gas, wherein CO account for the 50% of gas gross with
On, can be to be penetrated into the form of carbon in stainless cast steel part.Therefore, when using resin sand technique productions Ultra-low carbon casting, antiseepage
Carbon measure take to close weight.
The content of the invention：
The technical problems to be solved by the invention be provide one kind can not only be firmly attached to mould surface can also be uniform
Penetrate into inside sand mold and pour to pour down in high temperature alloy liquid and sinter dual fine and close CO gas-barrier layers into so as to play anti-carburizi ng work
Ultra-low carbon casting resin sand casting masking paste.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of Ultra-low carbon casting resin sand casting masking paste, is made up of the raw material of following parts by weight：
25-30 parts of resin modified volcanic ash, 10-15 parts of atlapulgite, 5-10 parts of flyash, resin modified ceramic 3-
5 parts, 3-5 parts of carboxymethyl chitosan oligosaccharide, 2-3 parts of sepiolite fibre powder, 2-3 parts of molecular screen primary powder, 2-3 parts of flake asbestos, hydrolyze poly- horse
Come 1-2 parts of acid anhydrides, 1-2 parts of nanometer titanium dioxide, 0.05-0.1 parts of yittrium oxide, 150-200 parts of water.
Its preparation method comprises the following steps：
(1) carboxymethyl chitosan oligosaccharide and molecular screen primary powder are added into atlapulgite, and is warming up to 115-120 DEG C of insulation grinding
15min, adds flake asbestos and yittrium oxide, continues, in 115-120 DEG C of insulation grinding 15min, to produce modified clay powder；
(2) HPMA and nanometer titanium dioxide are added into flyash, and is warming up to 110-115 DEG C of insulation grinding
30min, produces modified coal ash；
(3) resin modified volcanic ash, modified clay powder and resin modified ceramic are added into water, after being sufficiently mixed
The sealing and standing 1h in 0-5 DEG C of environment, adds modified coal ash and sepiolite fibre powder, and it is mixed to be warming up to reflux state insulation
15min is closed, gained mixed liquor is sent into ball mill after naturally cooling to room temperature, is milled to discharging-material size and reaches 0.03-
0.05mm, produces masking paste.
The resin modified volcanic ash is to be modified to form through terpene resin by volcanic ash, and its specific preparation method is：By terpene
Olefine resin and N hydroxymethyl acrylamide are warming up to 115-120 DEG C of insulation grinding 15min, add volcanic ash, hydroxypropyl methyl
Cellulose and ferrocene, continue in 115-120 DEG C of insulation grinding 15min, gained mixture naturally cools to room temperature, and through ultra micro
Micro mist is made in pulverizer, produces resin modified volcanic ash.
The terpene resin, N hydroxymethyl acrylamide, volcanic ash, the mass ratio of hydroxypropyl methyl cellulose and ferrocene
For 10-15:2-3:25-30:2-3:0.05-0.1.
The resin modified ceramic is to be modified to form through polystyrene resin by ceramic, its specific preparation method
For：Poloxamer and poly-aspartic-acid are added into ceramic, is sufficiently mixed after microwave frequency 2450MHz, output work
Microwave treatment 5min, adds polystyrene resin and nano-zinc borate under rate 700W, and microwave treatment is continued after being well mixed
5min, is sufficiently mixed again after standing 30min, and microwave treatment 5min again, and gained mixture naturally cools to room temperature, finally
Micro mist is made through micronizer, resin modified ceramic is produced.
The ceramic, poloxamer, poly-aspartic-acid, the mass ratio of polystyrene resin and nano-zinc borate are
5-10:1-2:0.5-1:2-3:0.05-0.1。
The beneficial effects of the invention are as follows：
(1) made coating belongs to water paint, it is to avoid volatile at a high temperature of being existed using solvent based coating and decomposition is asked
Topic, produces a large amount of harmful gas and pollutes working environment；
(2) resin modified volcanic ash used by and resin modified ceramic are formed by resin modified, and after modified all
With excellent hydrophily, to be dispersed in water the uniform water paint of obtained composition；
(3) after made masking paste is sprayed on sand mold, on the one hand is formed by being firmly attached to mould surface
One heavy CO gas-barrier layers, on the other hand can also uniformly penetrating to inside sand mold and pouring to pour down in high temperature alloy liquid and sinter second into
Weight CO gas-barrier layers, act on so as to play excellent anti-carburizi ng using dual CO gas-barrier layers, are sprayed through the masking paste
The Ultra-low carbon cast(ing) surface carburized layer thickness that sand casting is obtained after painting is less than 2.5mm, and anti-carburizi ng effect is much better than presently commercially available
Masking paste.
Embodiment：
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below
Specific embodiment is closed, the present invention is expanded on further.
Embodiment 1
(1) 3kg carboxymethyl chitosan oligosaccharides and 2kg molecular screen primary powders are added into 10kg atlapulgites, and is warming up to 115-120
DEG C insulation grinding 15min, adds 2kg flake asbestos and 0.05kg yittrium oxide, continues in 115-120 DEG C of insulation grinding 15min, i.e.,
Clay powder must be modified；
(2) 1kg HPMAs and 1kg nanometer titanium dioxides are added into 5kg flyash, and is warming up to 110-115
DEG C insulation grinding 30min, produce modified coal ash；
(3) 25kg resin modifieds volcanic ash, modified clay powder and 5kg resin modified ceramics are added into 200kg water micro-
Powder, is sufficiently mixed after sealing and standing 1h in 0-5 DEG C of environment, adds modified coal ash and 2kg sepiolite fibre powder, and heat up
To reflux state insulation mixing 15min, gained mixed liquor is sent into ball mill after naturally cooling to room temperature, is milled to discharging grain
Degree reaches 0.03-0.05mm, produces masking paste.
The preparation of resin modified volcanic ash：10kg terpene resins and 2kg N hydroxymethyl acrylamides are warming up to 115-
120 DEG C of insulation grinding 15min, add 30kg volcanic ash, 2kg hydroxypropyl methyl celluloses and 0.05kg ferrocene, continue
115-120 DEG C of insulation grinding 15min, gained mixture naturally cools to room temperature, and micro mist is made through micronizer, produces tree
Fat is modified volcanic ash.
The preparation of resin modified ceramic：1kg poloxamers and the poly- lucid asparagus of 0.5kg are added into 5kg ceramics
Propylhomoserin, is sufficiently mixed after microwave treatment 5min under microwave frequency 2450MHz, power output 700W, adds 2kg polystyrene
Resin and 0.05kg nano-zinc borates, continue microwave treatment 5min after being well mixed, are sufficiently mixed again after standing 30min, and
Microwave treatment 5min again, gained mixture naturally cools to room temperature, micro mist most is made through micronizer afterwards, produces resin and change
Property ceramic.
Embodiment 2
(1) 5kg carboxymethyl chitosan oligosaccharides and 2kg molecular screen primary powders are added into 15kg atlapulgites, and is warming up to 115-120
DEG C insulation grinding 15min, adds 3kg flake asbestos and 0.05kg yittrium oxide, continues in 115-120 DEG C of insulation grinding 15min, i.e.,
Clay powder must be modified；
(2) 1kg HPMAs and 1kg nanometer titanium dioxides are added into 10kg flyash, and is warming up to 110-115
DEG C insulation grinding 30min, produce modified coal ash；
(3) 30kg resin modifieds volcanic ash, modified clay powder and 3kg resin modified ceramics are added into 200kg water micro-
Powder, is sufficiently mixed after sealing and standing 1h in 0-5 DEG C of environment, adds modified coal ash and 2kg sepiolite fibre powder, and heat up
To reflux state insulation mixing 15min, gained mixed liquor is sent into ball mill after naturally cooling to room temperature, is milled to discharging grain
Degree reaches 0.03-0.05mm, produces masking paste.
The preparation of resin modified volcanic ash：15kg terpene resins and 3kg N hydroxymethyl acrylamides are warming up to 115-
120 DEG C of insulation grinding 15min, add 30kg volcanic ash, 3kg hydroxypropyl methyl celluloses and 0.05kg ferrocene, continue
115-120 DEG C of insulation grinding 15min, gained mixture naturally cools to room temperature, and micro mist is made through micronizer, produces tree
Fat is modified volcanic ash.
The preparation of resin modified ceramic：2kg poloxamers and the poly- lucid asparagus of 0.5kg are added into 10kg ceramics
Propylhomoserin, is sufficiently mixed after microwave treatment 5min under microwave frequency 2450MHz, power output 700W, adds 3kg polystyrene
Resin and 0.05kg nano-zinc borates, continue microwave treatment 5min after being well mixed, are sufficiently mixed again after standing 30min, and
Microwave treatment 5min again, gained mixture naturally cools to room temperature, micro mist most is made through micronizer afterwards, produces resin and change
Property ceramic.
Reference examples 1
(1) 5kg carboxymethyl chitosan oligosaccharides and 2kg molecular screen primary powders are added into 15kg atlapulgites, and is warming up to 115-120
DEG C insulation grinding 15min, adds 3kg flake asbestos and 0.05kg yittrium oxide, continues in 115-120 DEG C of insulation grinding 15min, i.e.,
Clay powder must be modified；
(2) 1kg HPMAs and 1kg nanometer titanium dioxides are added into 10kg flyash, and is warming up to 110-115
DEG C insulation grinding 30min, produce modified coal ash；
(3) 30kg resin modifieds volcanic ash, modified clay powder and 3kg ceramics are added into 200kg water, it is fully mixed
Close after sealing and standing 1h in 0-5 DEG C of environment, add modified coal ash and 2kg sepiolite fibre powder, and be warming up to backflow shape
State insulation mixing 15min, gained mixed liquor is sent into ball mill after naturally cooling to room temperature, is milled to discharging-material size and reaches
0.03-0.05mm, produces masking paste.
The preparation of resin modified volcanic ash：15kg terpene resins and 3kg N hydroxymethyl acrylamides are warming up to 115-
120 DEG C of insulation grinding 15min, add 30kg volcanic ash, 3kg hydroxypropyl methyl celluloses and 0.05kg ferrocene, continue
115-120 DEG C of insulation grinding 15min, gained mixture naturally cools to room temperature, and micro mist is made through micronizer, produces tree
Fat is modified volcanic ash.
Reference examples 2
(1) 5kg carboxymethyl chitosan oligosaccharides and 2kg molecular screen primary powders are added into 15kg atlapulgites, and is warming up to 115-120
DEG C insulation grinding 15min, adds 3kg flake asbestos and 0.05kg yittrium oxide, continues in 115-120 DEG C of insulation grinding 15min, i.e.,
Clay powder must be modified；
(2) 1kg HPMAs and 1kg nanometer titanium dioxides are added into 10kg flyash, and is warming up to 110-115
DEG C insulation grinding 30min, produce modified coal ash；
(3) 30kg volcanic ash, modified clay powder and 3kg resin modified ceramics are added into 200kg water, it is fully mixed
Close after sealing and standing 1h in 0-5 DEG C of environment, add modified coal ash and 2kg sepiolite fibre powder, and be warming up to backflow shape
State insulation mixing 15min, gained mixed liquor is sent into ball mill after naturally cooling to room temperature, is milled to discharging-material size and reaches
0.03-0.05mm, produces masking paste.
The preparation of resin modified ceramic：2kg poloxamers and the poly- lucid asparagus of 0.5kg are added into 10kg ceramics
Propylhomoserin, is sufficiently mixed after microwave treatment 5min under microwave frequency 2450MHz, power output 700W, adds 3kg polystyrene
Resin and 0.05kg nano-zinc borates, continue microwave treatment 5min after being well mixed, are sufficiently mixed again after standing 30min, and
Microwave treatment 5min again, gained mixture naturally cools to room temperature, micro mist most is made through micronizer afterwards, produces resin and change
Property ceramic.
Reference examples 3
(1) 5kg carboxymethyl chitosan oligosaccharides and 2kg molecular screen primary powders are added into 15kg atlapulgites, and is warming up to 115-120
DEG C insulation grinding 15min, adds 3kg flake asbestos and 0.05kg yittrium oxide, continues in 115-120 DEG C of insulation grinding 15min, i.e.,
Clay powder must be modified；
(2) 1kg HPMAs and 1kg nanometer titanium dioxides are added into 10kg flyash, and is warming up to 110-115
DEG C insulation grinding 30min, produce modified coal ash；
(3) 30kg volcanic ash, modified clay powder and 3kg ceramics are added into 200kg water, is sufficiently mixed after 0-
Sealing and standing 1h in 5 DEG C of environment, adds modified coal ash and 2kg sepiolite fibre powder, and it is mixed to be warming up to reflux state insulation
15min is closed, gained mixed liquor is sent into ball mill after naturally cooling to room temperature, is milled to discharging-material size and reaches 0.03-
0.05mm, produces masking paste.
Reference examples 4
(1) 5kg carboxymethyl chitosan oligosaccharides and 2kg molecular screen primary powders are added into 15kg atlapulgites, and is warming up to 115-120
DEG C insulation grinding 15min, adds 3kg flake asbestos and 0.05kg yittrium oxide, continues in 115-120 DEG C of insulation grinding 15min, i.e.,
Clay powder must be modified；
(2) 30kg volcanic ash, modified clay powder and 3kg ceramics are added into 200kg water, is sufficiently mixed after 0-
Sealing and standing 1h in 5 DEG C of environment, adds flyash and 2kg sepiolite fibre powder, and be warming up to reflux state insulation mixing
15min, gained mixed liquor is sent into ball mill after naturally cooling to room temperature, is milled to discharging-material size and is reached 0.03-0.05mm,
Produce masking paste.
Embodiment 3
Respectively by embodiment 1, embodiment 2, reference examples 1, reference examples 2, reference examples 3 and the made masking paste of reference examples 4
The same batch of mould surface made via identical molding sand is sprayed at, power station stainless steel rotary wheel is used for after coating is completely dried
Hat, the casting of lower ring, and the case-carbonizing thickness degree for processing made casting is determined, as a result as shown in table 1.
Table 1 processes the case-carbonizing thickness degree of made casting
| Test event | Embodiment 1 | Embodiment 2 | Reference examples 1 | Reference examples 2 | Reference examples 3 | Reference examples 4 |
| Carburized layer thickness | 2.32mm | 2.28mm | 2.56mm | 2.83mm | 3.24mm | 3.85mm |
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (6)
1. a kind of Ultra-low carbon casting resin sand casting masking paste, it is characterised in that by the raw material system of following parts by weight
Into：
25-30 parts of resin modified volcanic ash, 10-15 parts of atlapulgite, 5-10 parts of flyash, 3-5 parts of resin modified ceramic,
3-5 parts of carboxymethyl chitosan oligosaccharide, 2-3 parts of sepiolite fibre powder, 2-3 parts of molecular screen primary powder, 2-3 parts of flake asbestos, hydrolyzed polymaleic anhydride
1-2 parts of acid anhydride, 1-2 parts of nanometer titanium dioxide, 0.05-0.1 parts of yittrium oxide, 150-200 parts of water.
2. Ultra-low carbon casting resin sand casting masking paste according to claim 1, it is characterised in that its preparation side
Method comprises the following steps：
(1) carboxymethyl chitosan oligosaccharide and molecular screen primary powder are added into atlapulgite, and is warming up to 115-120 DEG C of insulation grinding
15min, adds flake asbestos and yittrium oxide, continues, in 115-120 DEG C of insulation grinding 15min, to produce modified clay powder；
(2) HPMA and nanometer titanium dioxide are added into flyash, and is warming up to 110-115 DEG C of insulation grinding
30min, produces modified coal ash；
(3) resin modified volcanic ash, modified clay powder and resin modified ceramic are added into water, is sufficiently mixed after 0-
Sealing and standing 1h in 5 DEG C of environment, adds modified coal ash and sepiolite fibre powder, and be warming up to reflux state insulation mixing
15min, gained mixed liquor is sent into ball mill after naturally cooling to room temperature, is milled to discharging-material size and is reached 0.03-0.05mm,
Produce masking paste.
3. Ultra-low carbon casting resin sand casting masking paste according to claim 1 or 2, it is characterised in that：It is described
Resin modified volcanic ash is to be modified to form through terpene resin by volcanic ash, and its specific preparation method is：By terpene resin and N- hydroxyls
Methacrylamide is warming up to 115-120 DEG C of insulation grinding 15min, adds volcanic ash, hydroxypropyl methyl cellulose and two cyclopentadienyls
Iron, continues in 115-120 DEG C of insulation grinding 15min, gained mixture naturally cools to room temperature, and is made through micronizer micro-
Powder, produces resin modified volcanic ash.
4. Ultra-low carbon casting resin sand casting masking paste according to claim 3, it is characterised in that：The terpenes
Resin, N hydroxymethyl acrylamide, volcanic ash, the mass ratio of hydroxypropyl methyl cellulose and ferrocene are 10-15:2-3:25-
30:2-3:0.05-0.1。
5. Ultra-low carbon casting resin sand casting masking paste according to claim 1 or 2, it is characterised in that：It is described
Resin modified ceramic is to be modified to form through polystyrene resin by ceramic, and its specific preparation method is：It is micro- to ceramics
Poloxamer and poly-aspartic-acid are added in powder, is sufficiently mixed after microwave under microwave frequency 2450MHz, power output 700W
5min is handled, polystyrene resin and nano-zinc borate is added, continues microwave treatment 5min after being well mixed, stands 30min
It is sufficiently mixed again afterwards, and microwave treatment 5min again, gained mixture naturally cools to room temperature, most afterwards through micronizer system
Into micro mist, resin modified ceramic is produced.
6. Ultra-low carbon casting resin sand casting masking paste according to claim 5, it is characterised in that：The ceramics
Micro mist, poloxamer, poly-aspartic-acid, the mass ratio of polystyrene resin and nano-zinc borate are 5-10:1-2:0.5-1:
2-3:0.05-0.1。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710277053.1A CN106955967A (en) | 2017-04-25 | 2017-04-25 | A kind of Ultra-low carbon casting resin sand casting masking paste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710277053.1A CN106955967A (en) | 2017-04-25 | 2017-04-25 | A kind of Ultra-low carbon casting resin sand casting masking paste |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111992659A (en) * | 2020-08-25 | 2020-11-27 | 含山县能华铸造有限公司 | Method for improving surface quality of alloy steel casting |
| RU2783778C1 (en) * | 2021-12-10 | 2022-11-17 | Федеральное государственное унитарное предприятие "Производственное объединение "Маяк" | Non-stick paint for graphite foundry equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430703A (en) * | 2011-12-27 | 2012-05-02 | 沈阳铸造研究所 | Carburization prevention coating for ultralow carbon stainless steel casting |
| CN104384443A (en) * | 2014-11-07 | 2015-03-04 | 滁州金诺实业有限公司 | Process for fabricating template pipe-containing cast part in manner of pre-embedding stainless steel pipeline |
| CN105964897A (en) * | 2016-07-12 | 2016-09-28 | 安徽龙氏机械制造有限公司 | Coating used for resin sand mold casting |
| CN105964895A (en) * | 2016-06-26 | 2016-09-28 | 青岛特澳能源检测有限公司 | Casting coating |
| CN106046986A (en) * | 2016-07-18 | 2016-10-26 | 天长市巨龙车船涂料有限公司 | Quick-drying type primer-topcoat coating |
-
2017
- 2017-04-25 CN CN201710277053.1A patent/CN106955967A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430703A (en) * | 2011-12-27 | 2012-05-02 | 沈阳铸造研究所 | Carburization prevention coating for ultralow carbon stainless steel casting |
| CN104384443A (en) * | 2014-11-07 | 2015-03-04 | 滁州金诺实业有限公司 | Process for fabricating template pipe-containing cast part in manner of pre-embedding stainless steel pipeline |
| CN105964895A (en) * | 2016-06-26 | 2016-09-28 | 青岛特澳能源检测有限公司 | Casting coating |
| CN105964897A (en) * | 2016-07-12 | 2016-09-28 | 安徽龙氏机械制造有限公司 | Coating used for resin sand mold casting |
| CN106046986A (en) * | 2016-07-18 | 2016-10-26 | 天长市巨龙车船涂料有限公司 | Quick-drying type primer-topcoat coating |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111992659A (en) * | 2020-08-25 | 2020-11-27 | 含山县能华铸造有限公司 | Method for improving surface quality of alloy steel casting |
| RU2783778C1 (en) * | 2021-12-10 | 2022-11-17 | Федеральное государственное унитарное предприятие "Производственное объединение "Маяк" | Non-stick paint for graphite foundry equipment |
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Application publication date: 20170718 |