CN102328018A - Casting surface sulfur-seepage-prevention coating for furan resin sand mould - Google Patents
Casting surface sulfur-seepage-prevention coating for furan resin sand mould Download PDFInfo
- Publication number
- CN102328018A CN102328018A CN201110332130A CN201110332130A CN102328018A CN 102328018 A CN102328018 A CN 102328018A CN 201110332130 A CN201110332130 A CN 201110332130A CN 201110332130 A CN201110332130 A CN 201110332130A CN 102328018 A CN102328018 A CN 102328018A
- Authority
- CN
- China
- Prior art keywords
- coating
- percent
- sulfur
- furan resin
- seepage
- 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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- 239000011248 coating agent Substances 0.000 title claims abstract description 27
- 238000000576 coating method Methods 0.000 title claims abstract description 27
- 238000005266 casting Methods 0.000 title claims abstract description 16
- 239000007849 furan resin Substances 0.000 title claims abstract description 9
- 239000004576 sand Substances 0.000 title abstract description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 13
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000010439 graphite Substances 0.000 claims abstract description 7
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 7
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000292 calcium oxide Substances 0.000 claims abstract description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 4
- 239000005011 phenolic resin Substances 0.000 claims abstract description 4
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 7
- 229910052726 zirconium Inorganic materials 0.000 claims description 7
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 6
- 239000013081 microcrystal Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 8
- 239000011593 sulfur Substances 0.000 abstract description 5
- 229910052717 sulfur Inorganic materials 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 239000003110 molding sand Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 238000005245 sintering Methods 0.000 abstract 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 abstract 1
- 229910001141 Ductile iron Inorganic materials 0.000 abstract 1
- 239000000440 bentonite Substances 0.000 abstract 1
- 229910000278 bentonite Inorganic materials 0.000 abstract 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 abstract 1
- 239000011247 coating layer Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052845 zircon Inorganic materials 0.000 abstract 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 abstract 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000000976 ink Substances 0.000 description 4
- 239000011819 refractory material Substances 0.000 description 4
- 239000005864 Sulphur Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000008199 coating composition Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- MHKWSJBPFXBFMX-UHFFFAOYSA-N iron magnesium Chemical compound [Mg].[Fe] MHKWSJBPFXBFMX-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
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- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses a casting surface sulfur-seepage-prevention coating for a furan resin sand mould. The coating consists of the following components in percentage by weight: 1.6 to 2 percent of organic bentonite, 0.12 to 0.2 percent of light-weight magnesium oxide, 31 to 46 percent of zircon powder, 0.46 to 0.55 percent of active calcium oxide, 12.5 to 15 percent of rutile, 0.8 to 1.2 percent of phenolic resin, 6.2 to 8 percent of amorphous graphite and the balance of isopropanol. By the casting surface sulfur-seepage-prevention coating, the conventional idea that the sintering point is higher and the coating is more qualified is changed; a sulfur-containing component in the molding sand can be effectively prevented from entering a casting during heating by ingeniously using a shielding and isolating effect generated when a fireproof material with the sintering point lower than casting temperature of metal liquid forms coating surface vitrifaction, so degradated spheroidization of a spheroidal graphite cast iron surface can be avoided. Meanwhile, the problem of blocking and absorption of a coating layer on a sulfur-containing substance can be solved by properly using a material which can react with sulfur.
Description
Technical field
The present invention relates to a kind of casting and use material, relate in particular to a kind of foundry facing.
Background technology
For the foundry goods of furan resin-sand explained hereafter, through sulfur content in the control resin, though can partly solve the problem of cast(ing) surface sulfurizing.Domesticly did certain trial, but do not obtain good effect for the sulphur that shields, absorbs through coating in the resin.Can only sheet, the myrmekite ink film thickness on iron casting surface be controlled between 5～12mm.Resin bonded sand mould is cast in cast, the cooling forming process because of more or less cast(ing) surface sulfurizing and often causes declining to a great extent of surface quality of continuous castings.
Summary of the invention
Technical problem to be solved by this invention provides the anti-sulfurizing coating of a kind of cast(ing) surface, and the application of the invention applying coating is in the sand mold mold cavity surface, to solve the foundry goods that uses the furan resin-sand explained hereafter, the problem of surperficial sulfurizing.
For solving the problems of the technologies described above, technical scheme provided by the invention is following:
A kind of anti-sulfurizing coating of cast(ing) surface that is used for Castings Produce with Furan Resin, the weight proportion of its component is:
Organobentonite 1.6 ~ 2%, light magnesium oxide 0.12 ~ 0.2%, zirconium English powder 31 ~ 46%, active calcium oxide 0.46 ~ 0.55%, rutile 12.5 ~ 15%, phenolic resins 0.8 ~ 1.2%, micro crystal graphite 6.2 ~ 8%, all the other are isopropyl alcohol.
The content of magnesia of described light magnesium oxide more preferably greater than 99%, the ZrO2 content of described zirconium English powder is greater than 65%.
The C content of described micro crystal graphite is more preferably greater than 78%, and particle diameter is less than 0.53 μ m.
In the Foundry Production, the direction of selecting coating for use is to prepare suitable coating from the refractoriness of refractory material always all the time.Along with the commercial development of cast paint, the refractory material of high refractoriness is owing to its scarcity, and Costco Wholesale is high always.The present invention has broken the principle of observing as configuration with high refractoriness in the common coating formula, changes the high more good more notion of weld point in the past; Utilized the shielding blanketing effect that produces after the refractory material formation coating surface vitrifying of weld point a little less than the pouring temperature of molten metal dexterously; Thereby utilize the coating surface vitrifying to play good die cavity coating shield effectiveness with looking for another way; In the refractory material of the present invention except that zirconium English powder; The aggregate of low refractoriness such as collocation rutile etc. produces vitrified trend to improve coating when the high temperature, plays the effect of better shielding; Effectively stop the sulfur-bearing composition in the molding sand when being heated, to get into foundry goods, avoid causing magnesium iron surface decaying spheroidisation.Simultaneously; Passed through lot of test sum up used in right amount in the coating formula of the present invention can with the material (active calcium oxide) of reaction of Salmon-Saxl, under the prerequisite of the combination property that does not influence coating, further solve dope layer to the problem of the obstruct of sulphur-containing substance and absorption, reduce the content of sulphur at cast(ing) surface; Guarantee that coating normal temperature serviceability is stable.Sheet, the myrmekite China ink layer on iron casting surface effectively are controlled in the 2mm, have solved fire check, influence this problem of serviceability of foundry goods on the foundry goods top layer.
Description of drawings
For let above-mentioned purpose of the present invention, feature and advantage can be more obviously understandable, elaborate below in conjunction with the accompanying drawing specific embodiments of the invention, wherein:
Fig. 1 is used for the preparing process sketch map of the anti-sulfurizing coating of cast(ing) surface of Castings Produce with Furan Resin for the present invention.
The specific embodiment
Prepare the anti-sulfurizing coating of the cast(ing) surface that is used for Castings Produce with Furan Resin in proportion according to preparing process shown in Figure 1, the weight proportion of its component is:
Organobentonite 1.6 ~ 2%, light magnesium oxide 0.12 ~ 0.2%, zirconium English powder 31 ~ 46%, active calcium oxide 0.46 ~ 0.55%, rutile 12.5 ~ 15%, phenolic resins 0.8 ~ 1.2%, micro crystal graphite 6.2 ~ 8%, all the other are isopropyl alcohol.
Wherein the content of magnesia of light magnesium oxide is greater than 99%; The ZrO2 content of zirconium English powder is greater than 65%; The C content of micro crystal graphite greater than 78%, particle diameter is less than 0.53 μ m.
Following table is sheet, the myrmekite ink film thickness that the weight percent of each component in the coating is when used cast(ing) surface behind this coating.
Use cast(ing) surface of the present invention to prevent sulfurizing coating, improved use furan resin-sand explained hereafter foundry goods greatly, the problem of surperficial sulfurizing; Obviously reduced the sheet on iron casting surface, the thickness that myrmekite China ink layer forms, be controlled at effectively in the 2mm, solved fire check, influenced the problem of the serviceability of foundry goods on the foundry goods top layer.
Claims (3)
1. a cast(ing) surface that is used for Castings Produce with Furan Resin is prevented sulfurizing coating, it is characterized in that the weight proportion of its component is:
Organobentonite 1.6 ~ 2%, light magnesium oxide 0.12 ~ 0.2%, zirconium English powder 31 ~ 46%, active calcium oxide 0.46 ~ 0.55%, rutile 12.5 ~ 15%, phenolic resins 0.8 ~ 1.2%, micro crystal graphite 6.2 ~ 8%, all the other are isopropyl alcohol.
2. the anti-sulfurizing coating of the cast(ing) surface that is used for Castings Produce with Furan Resin according to claim 1 is characterized in that, the content of magnesia of described light magnesium oxide greater than 99%, the ZrO2 content of described zirconium English powder is greater than 65%.
3. the anti-sulfurizing coating of cast(ing) surface that is used for Castings Produce with Furan Resin according to claim 1 and 2 is characterized in that the C content of described micro crystal graphite is greater than 78%, and particle diameter is less than 0.53 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110332130A CN102328018A (en) | 2011-10-28 | 2011-10-28 | Casting surface sulfur-seepage-prevention coating for furan resin sand mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110332130A CN102328018A (en) | 2011-10-28 | 2011-10-28 | Casting surface sulfur-seepage-prevention coating for furan resin sand mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102328018A true CN102328018A (en) | 2012-01-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110332130A Pending CN102328018A (en) | 2011-10-28 | 2011-10-28 | Casting surface sulfur-seepage-prevention coating for furan resin sand mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102328018A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106734874A (en) * | 2016-12-13 | 2017-05-31 | 安徽龙氏机械制造有限公司 | A kind of resin bonded sand mould casts antisurlphuizing coating |
| CN114558981A (en) * | 2020-11-27 | 2022-05-31 | 欧区爱铸造材料（中国）有限公司 | Novel anti-sulfurization casting coating |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082466A (en) * | 1993-02-15 | 1994-02-23 | 大连冷冻机厂 | Resin sand mould (core) or cast part type (core) is used water based paint |
| JP2002321036A (en) * | 2001-04-27 | 2002-11-05 | Kao Corp | Facing material and coating method |
| CN101773980A (en) * | 2010-02-19 | 2010-07-14 | 南通爱尔思轻合金精密成型有限公司 | Alcohol-based casting paint for low-pressure casting of aluminum alloy sand mold and coating process thereof |
| CN101817058A (en) * | 2010-03-30 | 2010-09-01 | 深圳市景鼎现代科技有限公司 | Shield type coating composition and preparation process of coating thereof |
-
2011
- 2011-10-28 CN CN201110332130A patent/CN102328018A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082466A (en) * | 1993-02-15 | 1994-02-23 | 大连冷冻机厂 | Resin sand mould (core) or cast part type (core) is used water based paint |
| JP2002321036A (en) * | 2001-04-27 | 2002-11-05 | Kao Corp | Facing material and coating method |
| CN101773980A (en) * | 2010-02-19 | 2010-07-14 | 南通爱尔思轻合金精密成型有限公司 | Alcohol-based casting paint for low-pressure casting of aluminum alloy sand mold and coating process thereof |
| CN101817058A (en) * | 2010-03-30 | 2010-09-01 | 深圳市景鼎现代科技有限公司 | Shield type coating composition and preparation process of coating thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106734874A (en) * | 2016-12-13 | 2017-05-31 | 安徽龙氏机械制造有限公司 | A kind of resin bonded sand mould casts antisurlphuizing coating |
| CN114558981A (en) * | 2020-11-27 | 2022-05-31 | 欧区爱铸造材料（中国）有限公司 | Novel anti-sulfurization casting coating |
| CN114558981B (en) * | 2020-11-27 | 2023-09-01 | 欧区爱铸造材料（中国）有限公司 | Sulfur-seepage-proof casting coating |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120125 |
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| WD01 | Invention patent application deemed withdrawn after publication |