CN1218728A - Adhesive for casting core - Google Patents
Adhesive for casting core Download PDFInfo
- Publication number
- CN1218728A CN1218728A CN 97121041 CN97121041A CN1218728A CN 1218728 A CN1218728 A CN 1218728A CN 97121041 CN97121041 CN 97121041 CN 97121041 A CN97121041 A CN 97121041A CN 1218728 A CN1218728 A CN 1218728A
- Authority
- CN
- China
- Prior art keywords
- oil
- acid
- oil residue
- residue
- dregs
- 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
- 238000005266 casting Methods 0.000 title claims abstract description 11
- 239000000853 adhesive Substances 0.000 title claims abstract description 8
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 8
- 239000003921 oil Substances 0.000 claims abstract description 30
- 235000019198 oils Nutrition 0.000 claims abstract description 30
- 235000015112 vegetable and seed oil Nutrition 0.000 claims abstract description 15
- 239000008158 vegetable oil Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003513 alkali Substances 0.000 claims abstract description 8
- 239000011230 binding agent Substances 0.000 claims description 20
- 239000003208 petroleum Substances 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 11
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 10
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 10
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 8
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 5
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 claims description 4
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 4
- 235000021388 linseed oil Nutrition 0.000 claims description 4
- 239000000944 linseed oil Substances 0.000 claims description 4
- 244000068988 Glycine max Species 0.000 claims description 3
- 235000010469 Glycine max Nutrition 0.000 claims description 3
- 235000019483 Peanut oil Nutrition 0.000 claims description 3
- 235000019484 Rapeseed oil Nutrition 0.000 claims description 3
- 235000012343 cottonseed oil Nutrition 0.000 claims description 3
- 239000002385 cottonseed oil Substances 0.000 claims description 3
- 239000000312 peanut oil Substances 0.000 claims description 3
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 3
- 239000002383 tung oil Substances 0.000 claims description 3
- KBIWNQVZKHSHTI-UHFFFAOYSA-N 4-n,4-n-dimethylbenzene-1,4-diamine;oxalic acid Chemical compound OC(=O)C(O)=O.CN(C)C1=CC=C(N)C=C1 KBIWNQVZKHSHTI-UHFFFAOYSA-N 0.000 claims description 2
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Natural products OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 2
- 239000001361 adipic acid Substances 0.000 claims description 2
- 235000011037 adipic acid Nutrition 0.000 claims description 2
- 239000002283 diesel fuel Substances 0.000 claims description 2
- 239000001530 fumaric acid Substances 0.000 claims description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 2
- 239000003350 kerosene Substances 0.000 claims description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims 1
- 239000011976 maleic acid Substances 0.000 claims 1
- 239000004576 sand Substances 0.000 abstract description 9
- 230000035699 permeability Effects 0.000 abstract description 3
- 239000010426 asphalt Substances 0.000 abstract description 2
- 231100000252 nontoxic Toxicity 0.000 abstract description 2
- 230000003000 nontoxic effect Effects 0.000 abstract description 2
- 230000007794 irritation Effects 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000011295 pitch Substances 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000000084 colloidal system Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000002075 main ingredient Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- STGNLGBPLOVYMA-MAZDBSFSSA-N (E)-but-2-enedioic acid Chemical compound OC(=O)\C=C\C(O)=O.OC(=O)\C=C\C(O)=O STGNLGBPLOVYMA-MAZDBSFSSA-N 0.000 description 1
- STGNLGBPLOVYMA-TZKOHIRVSA-N (z)-but-2-enedioic acid Chemical compound OC(=O)\C=C/C(O)=O.OC(=O)\C=C/C(O)=O STGNLGBPLOVYMA-TZKOHIRVSA-N 0.000 description 1
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 244000197813 Camelina sativa Species 0.000 description 1
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003110 molding sand Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 230000010148 water-pollination Effects 0.000 description 1
Landscapes
- Adhesives Or Adhesive Processes (AREA)
Abstract
The adhesive contains mainly residual oil or asphalt, vegetable oil residuum, water, oil or alkali. It is non-toxic, pollutionless, with no irritation smell and widely suitable for varius sand; and it may be used to prepare core sand with high dry and wet strength, small creeping and high permeability for high-quality casting.
Description
The invention belongs to a kind of is the adhesive for casting core of Main Ingredients and Appearance with petroleum residual oil or pitch, vegetable oil dregs.
Mostly there are shortcomings such as made core wet strength is low, easy sticking to mould in the casting of using at present with organic binder bond, and little to the sand kind scope of application, and the additional materials that old sand can not reuse, will add during mulling is many, uses inconvenience.Used fat, the residual oil binding agent of closing, low with its core wet strength of making, creep properties is big, and the bake out temperature narrow range need add clay during mulling, and gas permeability is poor, and the cost height; Resinoid bond costs an arm and a leg, and not enough with its core wet strength of making, can only moulding in core box, and the production cost height; The rosin binding agent is the cost height not only, and low with its core dry strength of making.Speak of with phenolic resins in CN86100763 patent application prospectus and the PL126096 Poland Patent document, preparation of soya-oil dregs and linseed oil or cameline oil and mixture in addition at high temperature dewater, mix the hydrophobic organic binder bond again.The core made from this binding agent, have that wet strength is low, creep properties big, inner chamber fineness is poor equally, easy shortcomings such as sticking to mould, thereby influence production efficiency and casting quality.
The purpose of this invention is to provide a kind of is the adhesive for casting core of primary raw material with petroleum residual oil or pitch, vegetable oil dregs, uses this binding agent, and sand mulling craft is simple, and casting quality is good.
First kind of embodiment of the present invention contains petroleum residual oil or pitch, vegetable oil dregs, water and oil, also can contain polyvinyl alcohol and binary acid, its weight percentage is respectively: petroleum residual oil or pitch 20%-60%, vegetable oil dregs 10%-40%, water 10%-40%, oil 5%-25%, polyvinyl alcohol 0-6%, binary acid 0-4%.
Second kind of embodiment of the present invention contains petroleum residual oil or pitch, vegetable oil dregs, and water and alkali, its weight percentage is respectively: petroleum residual oil or pitch 20-55%, vegetable oil dregs 20-40%, water 20%-40%, alkali 5-15%.
Petroleum residual oil of the present invention is meant the residual oil at the bottom of the vacuum distillation tower in the oil refining process, and pitch is meant the asphalt that petroleum residual oil is made through the oxygen blast processing, and the Main Ingredients and Appearance of the two is mixtures such as colloid, oil, asphalitine, is the main matter of film forming.Optimum content in first kind of embodiment is 20-60%, and the optimum content in second kind of embodiment is 20-55%, crosses when low, and the adhesive strength of making is not enough, when too high, is difficult to form stable Polymer Solution in the preparation process.Said vegetable oil dregs is meant a kind of dregs of fat that vegetable oil produces in pressing refining process, be the cottonseed oil residue preferably, also can be rapeseed oil residue, tung oil residue, linseed oil residue, soya-bean oil residue or peanut oil residue, its Main Ingredients and Appearance is that aliphatic acid and colloid are closed in insatiable hunger, it is the emulsifying agent when producing binding agent, it also is main film forming substance, first kind of embodiment of its optimum content is 10-40%, second kind of embodiment is 20-40%, cross and be difficult to form Polymer Solution when hanging down, do not have emulsification, the binding agent dry strength of making when too high is not enough.
Polyvinyl alcohol among the present invention, form that can the aqueous solution in preparation process adds as raw material, as solvent with adjust the cohesive energy of Polymer Solution, makes Polymer Solution reach certain balancing each other, so that make the stable binding agent that coremaking requires that meets.After containing polyvinyl alcohol among the present invention, can improve the dry strength of made core, the difference of its content can satisfy the requirement of core not at the same level to binding agent.Said binary acid is phthalic acid or fumaric acid (fumaric acid), also can be maleic acid (maleic acid), ethanedioic acid, adipic acid, M-phthalic acid or terephthalic acid (TPA), is phthalic acid or fumaric acid preferably.In manufacturing process, phthalic acid can replace with phthalic anhydride.In first kind of embodiment of the present invention, under the situation that polyvinyl alcohol exists, can play better effect behind the adding binary acid.Because the existence of polyvinyl alcohol, in drying course, polyvinyl alcohol and unrighted acid generation esterification reaction, after adding binary acid, make a large amount of polyvinyl alcohol molecule crosslinked again, make low molecule unrighted acid form the macromolecule network structure with it at last, thereby can improve the dry strength of made core greatly.
Oil in first kind of embodiment of the present invention is diesel oil, also can be kerosene or solvent naphtha, it mainly acts on except that as the solvent, also is used for adjusting the cohesive energy of the formed Polymer Solution of preparation process, its optimum content is 5-25%, too high or too lowly all can influence result of use of the present invention.Said oil generally can use poor oil.
Alkali in second kind of embodiment of the present invention is NaOH, also can be potassium hydroxide.Compare with first kind of embodiment, the hydrophily of alkali is strong, and low price, but moisture absorption is arranged, the binding agent of making should not be put after with its coremaking for a long time.
Compare with existing binder for core-making, the present invention has the following advantages:
1, moisture content is no more than at 40% o'clock in the sand, does not influence use of the present invention, has overcome the shortcoming that other organic binder bonds can influence the molding sand dry strength because of moisture in the sand;
2, the core good permeability that uses the present invention to make, creep properties is little, oven dry easily, the bake out temperature wide ranges is generally at 170-220 ℃.Owing to used a large amount of solvents among the present invention, get angry slow in the drying course and gas forming amount little, thereby can improve casting quality,
3, use the present invention to make sand mulling craft simple, can long-term storage after the mulling, sticking to mould not during moulding, wet strength makes, the dry strength height;
4, use coremaking of the present invention, its core sand is reusable;
5, contain colloid among the present invention, in pyroprocess, produce the bright carbon film and the protective gas of similar graphite, thereby make the interior fineness of foundry goods good, the yield rate height;
6, the plyability of the present invention and inorganic material is good, and is nontoxic, has no irritating odor, pollution-free, the raw material abundance, and cost is low, and is easy to use.
Embodiment 1-8 sees the following form:
The preparation method is as follows:
(1) petroleum residual oil of aequum or pitch are joined is heated to 90-110 ℃ and constantly stir in the agitator;
(2) vegetable oil dregs with aequum slowly joins in the agitator, and keeps 90-100 ℃ temperature constantly to stir 15-30 minute, to the glue-like mixture that forms homogeneous;
(3) slowly drench in the agitator and constantly after the water of aequum is heated to 80-100 ℃ and stir, to add the back that finishes continue to stir 10-20 minute, make it to form uniform mixture;
(4) oil of aequum is joined in the agitator and constantly stir and made it to form uniform gluey binding agent in 10-30 minute.
Add in the lump with water in the required polyvinyl alcohol water soluble.Visual its dissolubility of required binary acid adds together with water or with oil.
Embodiment 9-12 sees the following form:
The preparation method is as follows:
(1) petroleum residual oil of aequum or pitch are inserted is heated to 90-110 ℃ in the agitator, and constantly stir;
(2) vegetable oil dregs with aequum slowly joins in the agitator, and constantly stirs 15-30 minute under 90-100 ℃ temperature, makes it to form the glue-like mixture of homogeneous;
(3) water and the alkali with aequum slowly drenches in the agitator and continuous the stirring, until forming uniform glue-like binding agent.
Claims (7)
1, a kind of adhesive for casting core is characterized in that containing by its weight percent meter: petroleum residual oil or pitch 20-60%, vegetable oil dregs 10-35%, water 10-40%, oily 5-25%, polyvinyl alcohol 0-6%, binary acid 0-4%.
2, according to the described binding agent of claim 1, it is characterized in that said vegetable oil dregs is the cottonseed oil residue, also can be rapeseed oil residue, tung oil residue, linseed oil residue, soya-bean oil residue or peanut oil residue.
3, according to claim 1 or 2 described binding agents, it is characterized in that said oil is diesel oil, also can be kerosene or solvent naphtha.
4, according to claim 1 or 2 described binding agents, it is characterized in that said binary acid is phthalic acid or fumaric acid, also can be maleic acid, ethanedioic acid, adipic acid, M-phthalic acid or terephthalic acid (TPA).
5, a kind of adhesive for casting core is characterized in that containing by its weight percent meter: petroleum residual oil or pitch 20-55%, vegetable oil dregs 20-40%, water 20-40%, alkali 5-15%.
6, according to the described binding agent of claim 5, it is characterized in that said vegetable oil dregs is the cottonseed oil residue, also can be rapeseed oil residue, tung oil residue, linseed oil residue, soya-bean oil residue or peanut oil residue.
7,, it is characterized in that said alkali is NaOH according to claim 5 or 6 described binding agents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97121041 CN1218728A (en) | 1997-11-30 | 1997-11-30 | Adhesive for casting core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97121041 CN1218728A (en) | 1997-11-30 | 1997-11-30 | Adhesive for casting core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1218728A true CN1218728A (en) | 1999-06-09 |
Family
ID=5176161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97121041 Pending CN1218728A (en) | 1997-11-30 | 1997-11-30 | Adhesive for casting core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1218728A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274351B (en) * | 2007-03-29 | 2010-04-14 | 沈阳工业大学 | A kind of foundry binder and preparation method thereof |
| CN102319869A (en) * | 2011-10-13 | 2012-01-18 | 李华山 | Molding sand for casting ductile iron |
| CN103331409A (en) * | 2013-07-02 | 2013-10-02 | 海安县中丽化工材料有限公司 | Method for preparing novel casting composite binder |
| CN104646596A (en) * | 2015-01-22 | 2015-05-27 | 安徽省繁昌县皖南阀门铸造有限公司 | A kind of anti-creep molding sand and preparation method thereof |
| CN117206463A (en) * | 2023-07-31 | 2023-12-12 | 淄博市特种设备检验研究院 | A kind of preparation method of casting sand binder |
-
1997
- 1997-11-30 CN CN 97121041 patent/CN1218728A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274351B (en) * | 2007-03-29 | 2010-04-14 | 沈阳工业大学 | A kind of foundry binder and preparation method thereof |
| CN102319869A (en) * | 2011-10-13 | 2012-01-18 | 李华山 | Molding sand for casting ductile iron |
| CN103331409A (en) * | 2013-07-02 | 2013-10-02 | 海安县中丽化工材料有限公司 | Method for preparing novel casting composite binder |
| CN104646596A (en) * | 2015-01-22 | 2015-05-27 | 安徽省繁昌县皖南阀门铸造有限公司 | A kind of anti-creep molding sand and preparation method thereof |
| CN117206463A (en) * | 2023-07-31 | 2023-12-12 | 淄博市特种设备检验研究院 | A kind of preparation method of casting sand binder |
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