CN105478668A - Novel sand mold - Google Patents
Novel sand mold Download PDFInfo
- Publication number
- CN105478668A CN105478668A CN201511000141.4A CN201511000141A CN105478668A CN 105478668 A CN105478668 A CN 105478668A CN 201511000141 A CN201511000141 A CN 201511000141A CN 105478668 A CN105478668 A CN 105478668A
- Authority
- CN
- China
- Prior art keywords
- sand
- additive
- novel
- less
- core
- 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.)
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Classifications
-
- 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
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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
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/20—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
- B22C1/22—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins
- B22C1/2233—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- B22C1/224—Furan polymers
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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
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
- B22C1/20—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents
- B22C1/22—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins
- B22C1/2233—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents of organic agents of resins or rosins obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- B22C1/2246—Condensation polymers of aldehydes and ketones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
Abstract
The invention discloses a novel sand mold and belongs to the field of casting. The novel sand mold comprises a sand mold body and a sand core; the sand mold body is made from resin sand; and the sand core is made from precoated sand. The novel sand mold solves the problems that a sand mold in the prior art is expensive or the removing difficulty of the sand core of the sand mold is large, and therefore the sand core of the novel sand mold can be thoroughly removed easily, the raw material price of the sand mold is low, and the casting cost of a casting is reduced on the basis that the quality of the casting is guaranteed.
Description
Technical field
The present invention relates to casting field, particularly relate to a kind of novel sand mo(u)ld.
Background technology
Sand mo(u)ld is used for the requisite parts of cast article in casting industry, as the term suggests sand mo(u)ld is exactly the mold manufactured with sand.Sand casting needs in sand, put into fabricated part model or wooden mold, then fills up sand weekend at model, and after case-opening goods-taking goes out model, sand forms mold.
According to architectural features such as the shapes of product, often can fix core in sand mo(u)ld, to be used for forming the cavity in foundry goods.
In prior art, core is usually identical with the material of sand mo(u)ld main body, and when all adopting precoated sand to make, because the raw material of precoated sand is more expensive, cause casting cost to increase, when all adopting resin sand, core is not easy again to remove, and then causes casting quality lower.
Summary of the invention
For above-mentioned Problems existing, the invention provides a kind of novel sand mo(u)ld, to overcome sand mo(u)ld of the prior art otherwise costly otherwise remove the larger problem of the core difficulty of sand mo(u)ld, thus both made the core of sand mo(u)ld easily remove totally, make again the cost of material of sand mo(u)ld lower, and then on the basis ensureing casting quality, reduce the casting cost of foundry goods.
To achieve these goals, the technical scheme that the present invention takes is:
A kind of novel sand mo(u)ld, wherein, comprising: sand mo(u)ld main body and core, and described sand mo(u)ld main body adopts resin sand to make, and described core adopts precoated sand to make.
Above-mentioned novel sand mo(u)ld, wherein, described resin sand by the raw yarn as main raw material(s), the furane resins as binding agent, as the acids curing agent of catalyst with make as the silane coupler of additive.
Above-mentioned novel sand mo(u)ld, wherein, the dioxide-containing silica in described raw yarn is greater than 92%, raw yarn clay content is less than 0.3%, water content is less than 0.2%, acid consumption is less than 4.5.
Above-mentioned novel sand mo(u)ld, wherein, described precoated sand is made up of the silica sand as main raw material(s), thermoplastic phenolic resinoid, the methenamine as curing agent, the calcium stearate as lubricant and additive as binding agent.
Above-mentioned novel sand mo(u)ld, wherein, the dioxide-containing silica of described silica sand is greater than 90%, clay content is less than 0.3%, dihedral coefficient is less than 1.3.
Above-mentioned novel sand mo(u)ld, wherein, the resinoid polymerization speed of described thermoplastic phenolic is 25 ~ 75s, softening point is 90 ~ 105 DEG C, mobility is 60 ~ 110mm, free phenol content is less than or equal to 4%.
Above-mentioned novel sand mo(u)ld, wherein, described additive is the one in high temperature resistant additive, easy defeated and dispersed additive, activeness and quietness additive, anti-stick sand additive, hygrometric state additive.
Technique scheme tool has the following advantages or beneficial effect:
Novel sand mo(u)ld provided by the invention comprises: sand mo(u)ld main body and core, and sand mo(u)ld main body adopts resin sand to make, and core adopts precoated sand to make; This novel sand mo(u)ld overcomes sand mo(u)ld of the prior art otherwise costly otherwise remove the larger problem of the core difficulty of sand mo(u)ld, thus both made the core of novel sand mo(u)ld easily remove totally, make again the cost of material of sand mo(u)ld lower, and then on the basis ensureing casting quality, reduce the casting cost of foundry goods.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further illustrated, but not as limiting to the invention.
Embodiment 1:
The novel sand mo(u)ld that the embodiment of the present invention 1 provides comprises: sand mo(u)ld main body and core, and sand mo(u)ld main body adopts resin sand to make, and core adopts precoated sand to make; Wherein, resin sand by the raw yarn as main raw material(s), the furane resins as binding agent, as the acids curing agent of catalyst with make as the silane coupler of additive; Precoated sand is made up of the silica sand as main raw material(s), thermoplastic phenolic resinoid, the methenamine as curing agent, the calcium stearate as lubricant and additive as binding agent.
In the novel sand mo(u)ld that the embodiment of the present invention 1 provides, the dioxide-containing silica in raw yarn is greater than 92%, raw yarn clay content is less than 0.3%, water content is less than 0.2%, acid consumption is less than 4.5.
In the novel sand mo(u)ld that the embodiment of the present invention 1 provides, the dioxide-containing silica of silica sand is greater than 90%, clay content is less than 0.3%, dihedral coefficient is less than 1.3.
In the novel sand mo(u)ld that the embodiment of the present invention 1 provides, the resinoid polymerization speed of thermoplastic phenolic is 25 ~ 75s, softening point is 90 ~ 105 DEG C, mobility is 60 ~ 110mm, free phenol content is less than or equal to 4%.
In the novel sand mo(u)ld that the embodiment of the present invention 1 provides, additive is the one in high temperature resistant additive, easy defeated and dispersed additive, activeness and quietness additive, anti-stick sand additive, hygrometric state additive.
In sum, the novel sand mo(u)ld that the embodiment of the present invention 1 provides comprises: sand mo(u)ld main body and core, and sand mo(u)ld main body adopts resin sand to make, and core adopts precoated sand to make; This novel sand mo(u)ld overcomes sand mo(u)ld of the prior art otherwise costly otherwise remove the larger problem of the core difficulty of sand mo(u)ld, thus both made the core of novel sand mo(u)ld easily remove totally, make again the cost of material of sand mo(u)ld lower, and then on the basis ensureing casting quality, reduce the casting cost of foundry goods.
It should be appreciated by those skilled in the art that those skilled in the art can realize described change case in conjunction with prior art and above-described embodiment, do not repeat them here.Such change case does not affect flesh and blood of the present invention, does not repeat them here.
Above preferred embodiment of the present invention is described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, the equipment wherein do not described in detail to the greatest extent and structure are construed as to be implemented with the common mode in this area; Any those of ordinary skill in the art, make many possible variations and modification not departing from technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations, this does not affect flesh and blood of the present invention.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (7)
1. a novel sand mo(u)ld, is characterized in that, comprising: sand mo(u)ld main body and core, and described sand mo(u)ld main body adopts resin sand to make, and described core adopts precoated sand to make.
2. novel sand mo(u)ld as claimed in claim 1, is characterized in that, described resin sand by the raw yarn as main raw material(s), the furane resins as binding agent, as the acids curing agent of catalyst with make as the silane coupler of additive.
3. novel sand mo(u)ld as claimed in claim 2, is characterized in that, the dioxide-containing silica in described raw yarn is greater than 92%, raw yarn clay content is less than 0.3%, water content is less than 0.2%, acid consumption is less than 4.5.
4. novel sand mo(u)ld as claimed in claim 1, is characterized in that, described precoated sand is made up of the silica sand as main raw material(s), thermoplastic phenolic resinoid, the methenamine as curing agent, the calcium stearate as lubricant and additive as binding agent.
5. novel sand mo(u)ld as claimed in claim 4, is characterized in that, the dioxide-containing silica of described silica sand is greater than 90%, clay content is less than 0.3%, dihedral coefficient is less than 1.3.
6. novel sand mo(u)ld as claimed in claim 4, is characterized in that, the resinoid polymerization speed of described thermoplastic phenolic is 25 ~ 75s, softening point is 90 ~ 105 DEG C, mobility is 60 ~ 110mm, free phenol content is less than or equal to 4%.
7. novel sand mo(u)ld as claimed in claim 4, is characterized in that, described additive is the one in high temperature resistant additive, easy defeated and dispersed additive, activeness and quietness additive, anti-stick sand additive, hygrometric state additive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511000141.4A CN105478668A (en) | 2015-12-27 | 2015-12-27 | Novel sand mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511000141.4A CN105478668A (en) | 2015-12-27 | 2015-12-27 | Novel sand mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105478668A true CN105478668A (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511000141.4A Pending CN105478668A (en) | 2015-12-27 | 2015-12-27 | Novel sand mold |
Country Status (1)
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| CN (1) | CN105478668A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105964884A (en) * | 2016-07-12 | 2016-09-28 | 安徽龙氏机械制造有限公司 | Resin sand for casting and preparing method of resin sand |
| CN106040962A (en) * | 2016-07-29 | 2016-10-26 | 无锡市三峰仪器设备有限公司 | Instrument casting resin sand enhanced by alkali free glass fibers |
| CN107321908A (en) * | 2017-07-19 | 2017-11-07 | 南通国盛铸造有限公司 | A kind of resin sand of high-performance and low-cost for lathe gray iron casting |
| CN109746383A (en) * | 2019-03-22 | 2019-05-14 | 十堰长江造型材料有限公司 | A kind of steel-casting precoated sand process for making shell |
Citations (6)
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|---|---|---|---|---|
| CN202291271U (en) * | 2011-11-01 | 2012-07-04 | 龙岩盛丰机械制造有限公司 | Combined type sand core for axle housing cast by V method |
| CN103192035A (en) * | 2012-01-05 | 2013-07-10 | 广西玉柴机器股份有限公司 | Composite sand core sand shooting device and method |
| CN104190875A (en) * | 2014-09-12 | 2014-12-10 | 中国船舶重工集团公司第十二研究所 | Composite casting mold forming method for complex thin-wall casing |
| CN104353789A (en) * | 2014-10-23 | 2015-02-18 | 江苏新中洲特种合金材料有限公司 | Preparation method of sand casting sand core and prepared sand core |
| CN104607601A (en) * | 2013-11-05 | 2015-05-13 | 青岛齐力铸钢有限公司 | Pump body casting process |
| CN105170911A (en) * | 2015-08-31 | 2015-12-23 | 沈阳铸造研究所 | Manufacturing method for complex specially-shaped composite sand core |
-
2015
- 2015-12-27 CN CN201511000141.4A patent/CN105478668A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202291271U (en) * | 2011-11-01 | 2012-07-04 | 龙岩盛丰机械制造有限公司 | Combined type sand core for axle housing cast by V method |
| CN103192035A (en) * | 2012-01-05 | 2013-07-10 | 广西玉柴机器股份有限公司 | Composite sand core sand shooting device and method |
| CN104607601A (en) * | 2013-11-05 | 2015-05-13 | 青岛齐力铸钢有限公司 | Pump body casting process |
| CN104190875A (en) * | 2014-09-12 | 2014-12-10 | 中国船舶重工集团公司第十二研究所 | Composite casting mold forming method for complex thin-wall casing |
| CN104353789A (en) * | 2014-10-23 | 2015-02-18 | 江苏新中洲特种合金材料有限公司 | Preparation method of sand casting sand core and prepared sand core |
| CN105170911A (en) * | 2015-08-31 | 2015-12-23 | 沈阳铸造研究所 | Manufacturing method for complex specially-shaped composite sand core |
Non-Patent Citations (1)
| Title |
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| 中国机械工程学会铸造分会: "《铸造手册 第4卷 造型材料》", 30 June 2002 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105964884A (en) * | 2016-07-12 | 2016-09-28 | 安徽龙氏机械制造有限公司 | Resin sand for casting and preparing method of resin sand |
| CN106040962A (en) * | 2016-07-29 | 2016-10-26 | 无锡市三峰仪器设备有限公司 | Instrument casting resin sand enhanced by alkali free glass fibers |
| CN107321908A (en) * | 2017-07-19 | 2017-11-07 | 南通国盛铸造有限公司 | A kind of resin sand of high-performance and low-cost for lathe gray iron casting |
| CN109746383A (en) * | 2019-03-22 | 2019-05-14 | 十堰长江造型材料有限公司 | A kind of steel-casting precoated sand process for making shell |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160413 |
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| RJ01 | Rejection of invention patent application after publication |