CN106077426A - A kind of instrument Foundry Coated Sand of resistance to water soak - Google Patents
A kind of instrument Foundry Coated Sand of resistance to water soak Download PDFInfo
- Publication number
- CN106077426A CN106077426A CN201610609344.1A CN201610609344A CN106077426A CN 106077426 A CN106077426 A CN 106077426A CN 201610609344 A CN201610609344 A CN 201610609344A CN 106077426 A CN106077426 A CN 106077426A
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- China
- Prior art keywords
- sand
- resistance
- water soak
- instrument
- modified clay
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/02—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by additives for special purposes, e.g. indicators, breakdown additives
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Ceramic Products (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The instrument Foundry Coated Sand of a kind of resistance to water soak, it includes the raw material of following mass percent: reheating magnesia 75 ~ 90%, zircon sand 5 ~ 10%, bauxite sand 3 ~ 8%, calper calcium peroxide 1 ~ 3%, modified clay 1 ~ 2%, clinker 1 ~ 3%, thermoplastic phenolic resin 1 ~ 2%, coupling agent 0.02 ~ 0.06%, hexamethylenamine 0.2 ~ 0.5%, firming agent 0.2 ~ 0.5%, alkali-free glass fibre 0.5 ~ 1%, biphosphate receive 0.2 ~ 0.5%.The instrument Foundry Coated Sand of a kind of resistance to water soak that the present invention provides, has the performance delaying raising rate, suppression nitrogen to produce, and can effectively reduce foundry goods and produce nitrogen pore, and then improve the yield rate of casting apparatus；Add precoated sand and meet the ironcasting universality to steel-casting, improve the yield rate of foundry goods, save foundry enterprise Modeling Material cost, there is excellent casting collapsibility performance, have simultaneously be difficult to the moisture absorption, high temperature resistant, roughness is less, is difficult to the performance of scab on foundry goods.
Description
Technical field
The present invention relates to casting technology field, be specifically related to the precoated sand of a kind of instrument casting with anti-moisture absorption property
Material.
Background technology
Precoated sand is molding sand or the core sand that sand grain surface is i.e. covered with one layer of hard resin film before moulding.The preparation of precoated sand
There are cold process and two kinds of coating techniques of Re Fa: resin is dissolved by cold process ethanol, and during mulling, add hexamethylenamine, make two
Person is coated on sand grain surface, and ethanol volatilizees, and obtains precoated sand；Full-boiled process is that sand is preheating to uniform temperature, adds resin and makes it melt, stirs
Mix and make resin-coating at sand grain surface, add hexamethylenamine aqueous solution and lubricant, cool down, crush, sieve to obtain precoated sand.Casting
Precoated sand be mainly used in steel-casting, ironcasting.
Along with the continuous extension of precoated sand range of application, different casting techniques, unlike material requirement and different structure
Foundry goods proposes different performance requirements to precoated sand.For instrument casting precoated sand to the requirement of precoated sand performance relatively
Height, existing precoated sand is when doing instrument casting and using, it is difficult to meet the requirement of actual casting serviceability.
Summary of the invention
Not enough for prior art, the invention provides that one is difficult to the moisture absorption, high temperature resistant, roughness is less, be difficult in casting
The precoated sand material for instrument casting of scab on part.
The present invention solves the technical scheme of above-mentioned technical problem employing: the instrument Foundry Coated Sand of a kind of resistance to water soak,
Raw material including following mass percent: reheating magnesia 75 ~ 90%, zircon sand 5 ~ 10%, bauxite sand 3 ~ 8%, calper calcium peroxide 1 ~
3%, modified clay 1 ~ 2%, clinker 1 ~ 3%, thermoplastic phenolic resin 1 ~ 2%, coupling agent 0.02 ~ 0.06%, hexamethylenamine 0.2 ~
0.5%, firming agent 0.2 ~ 0.5%, alkali-free glass fibre 0.5 ~ 1%, biphosphate receive 0.2 ~ 0.5%；
Described modified clay be 10 ~ 20 parts of loess, 3 ~ 6 parts of biphosphates receive, 2 ~ 5 parts of syrup and suitable quantity of water mix wet agglomerating after, warp
Obtaining after calcining, pulverizing, described part is mass fraction.
Further, the instrument Foundry Coated Sand of described a kind of resistance to water soak, including the raw material of following mass percent: zirconium
Sand 5%, bauxite sand 3%, calper calcium peroxide 1%, modified clay 1%, clinker 1%, thermoplastic phenolic resin 1%, coupling agent
0.02%, hexamethylenamine 0.2%, firming agent 0.2%, alkali-free glass fibre 0.5%, biphosphate receive 0.2%, and surplus is reheating magnesia.
Further, the instrument Foundry Coated Sand of described a kind of resistance to water soak, including the raw material of following mass percent: zirconium
Sand 8%, bauxite sand 5%, calper calcium peroxide 2%, modified clay 1.5%, clinker 2%, thermoplastic phenolic resin 1.5%, coupling
Agent 0.04%, hexamethylenamine 0.4%, firming agent 0.3%, alkali-free glass fibre 0.7%, biphosphate receive 0.4%, and surplus is dead burnt magnesite
Sand.
Further, the instrument Foundry Coated Sand of described a kind of resistance to water soak, including the raw material of following mass percent: zirconium
Sand 10%, bauxite sand 8%, calper calcium peroxide 3%, modified clay 2%, clinker 3%, thermoplastic phenolic resin 2%, coupling agent
0.06%, hexamethylenamine 0.5%, firming agent 0.5%, alkali-free glass fibre 1%, biphosphate receive 0.5%, and surplus is reheating magnesia.
Compared with prior art, the present invention possesses advantage and is:
The instrument Foundry Coated Sand of a kind of resistance to water soak that the present invention provides, compares with conventional precoated sand, and this precoated sand is except tool
Have outside the performance of Conventional coverlay film sand, also there is the performance delaying raising rate, suppression nitrogen to produce, can effectively reduce foundry goods and produce
Nitrogen pore, and then improve the yield rate of casting apparatus；Add precoated sand and meet the ironcasting universality to steel-casting, improve
The yield rate of foundry goods, saves the cost of foundry enterprise Modeling Material, has excellent casting collapsibility performance, has simultaneously and is difficult to inhale
Damp, high temperature resistant, roughness is less, be difficult to the performance of scab on foundry goods.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described further.
Embodiment 1: the instrument Foundry Coated Sand of a kind of resistance to water soak, including the raw material of following mass percent: zircon sand
5%, bauxite sand 3%, calper calcium peroxide 1%, modified clay 1%, clinker 1%, thermoplastic phenolic resin 1%, coupling agent 0.02%,
Hexamethylenamine 0.2%, firming agent 0.2%, alkali-free glass fibre 0.5%, biphosphate receive 0.2%, and surplus is reheating magnesia；Described change
Property clay be 10 parts of loess, 3 parts of biphosphates receive, 2 parts of syrup and suitable quantity of water mix wet agglomerating after, through calcining, pulverize after obtain, institute
The part stated is mass fraction.
Embodiment 2: the instrument Foundry Coated Sand of a kind of resistance to water soak, including the raw material of following mass percent: zircon sand
8%, bauxite sand 5%, calper calcium peroxide 2%, modified clay 1.5%, clinker 2%, thermoplastic phenolic resin 1.5%, coupling agent
0.04%, hexamethylenamine 0.4%, firming agent 0.3%, alkali-free glass fibre 0.7%, biphosphate receive 0.4%, and surplus is reheating magnesia；
Described modified clay be 15 parts of loess, 5 parts of biphosphates receive, 4 parts of syrup and suitable quantity of water mix wet agglomerating after, after calcining, pulverizing
Obtaining, described part is mass fraction.
Embodiment 3: the instrument Foundry Coated Sand of a kind of resistance to water soak, including the raw material zircon sand of following mass percent
10%, bauxite sand 8%, calper calcium peroxide 3%, modified clay 2%, clinker 3%, thermoplastic phenolic resin 2%, coupling agent 0.06%,
Hexamethylenamine 0.5%, firming agent 0.5%, alkali-free glass fibre 1%, biphosphate receive 0.5%, and surplus is reheating magnesia；Described modification
Clay be 20 parts of loess, 6 parts of biphosphates receive, 5 parts of syrup and suitable quantity of water mix wet agglomerating after, through calcining, pulverize after obtain, described
Part be mass fraction.
The above is only the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, it is also possible to make some improvement and modification, these improve and modify
Also should be regarded as protection scope of the present invention.
Claims (4)
1. the instrument Foundry Coated Sand of a resistance to water soak, it is characterised in that: include the raw material of following mass percent: dead burnt magnesite
Sand 75 ~ 90%, zircon sand 5 ~ 10%, bauxite sand 3 ~ 8%, calper calcium peroxide 1 ~ 3%, modified clay 1 ~ 2%, clinker 1 ~ 3%, thermoplastic
Property phenolic resin 1 ~ 2%, coupling agent 0.02 ~ 0.06%, hexamethylenamine 0.2 ~ 0.5%, firming agent 0.2 ~ 0.5%, alkali-free glass fibre
0.5 ~ 1%, biphosphate receives 0.2 ~ 0.5%；
Described modified clay be 10 ~ 20 parts of loess, 3 ~ 6 parts of biphosphates receive, 2 ~ 5 parts of syrup and suitable quantity of water mix wet agglomerating after, warp
Obtaining after calcining, pulverizing, described part is mass fraction.
The instrument Foundry Coated Sand of a kind of resistance to water soak the most according to claim 1, it is characterised in that include following quality
The raw material of percentage ratio: zircon sand 5%, bauxite sand 3%, calper calcium peroxide 1%, modified clay 1%, clinker 1%, thermoplastic phenolic
Resin 1%, coupling agent 0.02%, hexamethylenamine 0.2%, firming agent 0.2%, alkali-free glass fibre 0.5%, biphosphate receive 0.2%, remaining
Amount is reheating magnesia.
The instrument Foundry Coated Sand of a kind of resistance to water soak the most according to claim 1, it is characterised in that include following quality
The raw material of percentage ratio: zircon sand 8%, bauxite sand 5%, calper calcium peroxide 2%, modified clay 1.5%, clinker 2%, thermoplasticity phenol
Urea formaldehyde 1.5%, coupling agent 0.04%, hexamethylenamine 0.4%, firming agent 0.3%, alkali-free glass fibre 0.7%, biphosphate are received
0.4%, surplus is reheating magnesia.
The instrument Foundry Coated Sand of a kind of resistance to water soak the most according to claim 1, it is characterised in that include following quality
The raw material of percentage ratio: zircon sand 10%, bauxite sand 8%, calper calcium peroxide 3%, modified clay 2%, clinker 3%, thermoplastic phenolic
Resin 2%, coupling agent 0.06%, hexamethylenamine 0.5%, firming agent 0.5%, alkali-free glass fibre 1%, biphosphate receive 0.5%, surplus
For reheating magnesia.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610609344.1A CN106077426A (en) | 2016-07-29 | 2016-07-29 | A kind of instrument Foundry Coated Sand of resistance to water soak |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610609344.1A CN106077426A (en) | 2016-07-29 | 2016-07-29 | A kind of instrument Foundry Coated Sand of resistance to water soak |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106077426A true CN106077426A (en) | 2016-11-09 |
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ID=57480029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610609344.1A Pending CN106077426A (en) | 2016-07-29 | 2016-07-29 | A kind of instrument Foundry Coated Sand of resistance to water soak |
Country Status (1)
| Country | Link |
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| CN (1) | CN106077426A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109773117A (en) * | 2019-03-04 | 2019-05-21 | 厦门美益绿建科技有限公司 | A kind of precoated sand and damp sand room temperature film covering method |
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|---|---|---|---|---|
| WO2003059315A1 (en) * | 2002-01-15 | 2003-07-24 | Nisshin Oillio Group, Ltd. | Water-in-oil emulsion preparation for external use on skin |
| CN101927318A (en) * | 2010-09-03 | 2010-12-29 | 吴江市液铸液压件铸造有限公司 | High strength precoated sand |
| CN101992265A (en) * | 2010-12-07 | 2011-03-30 | 山东宏泰机电科技有限公司 | Method for manufacturing resin casting die used for modeling sodium silicate self-hardening sand |
| CN103231007A (en) * | 2013-04-16 | 2013-08-07 | 繁昌县恒鑫汽车零部件有限公司 | Moisture absorption resistance iron cast precoated sand |
| CN103567360A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | Easily scattered precoated sand and preparation method thereof |
| CN104550631A (en) * | 2013-10-21 | 2015-04-29 | 青岛五洋铸机有限公司 | Composite special casting sand for replacing chromite sand |
| CN104923712A (en) * | 2015-05-20 | 2015-09-23 | 十堰长江造型材料有限公司 | 3D printing precoated sand and preparation method thereof |
-
2016
- 2016-07-29 CN CN201610609344.1A patent/CN106077426A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003059315A1 (en) * | 2002-01-15 | 2003-07-24 | Nisshin Oillio Group, Ltd. | Water-in-oil emulsion preparation for external use on skin |
| CN101927318A (en) * | 2010-09-03 | 2010-12-29 | 吴江市液铸液压件铸造有限公司 | High strength precoated sand |
| CN101992265A (en) * | 2010-12-07 | 2011-03-30 | 山东宏泰机电科技有限公司 | Method for manufacturing resin casting die used for modeling sodium silicate self-hardening sand |
| CN103231007A (en) * | 2013-04-16 | 2013-08-07 | 繁昌县恒鑫汽车零部件有限公司 | Moisture absorption resistance iron cast precoated sand |
| CN103567360A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | Easily scattered precoated sand and preparation method thereof |
| CN104550631A (en) * | 2013-10-21 | 2015-04-29 | 青岛五洋铸机有限公司 | Composite special casting sand for replacing chromite sand |
| CN104923712A (en) * | 2015-05-20 | 2015-09-23 | 十堰长江造型材料有限公司 | 3D printing precoated sand and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109773117A (en) * | 2019-03-04 | 2019-05-21 | 厦门美益绿建科技有限公司 | A kind of precoated sand and damp sand room temperature film covering method |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161109 |