CN1019755B - Binder for casting - Google Patents
Binder for castingInfo
- Publication number
- CN1019755B CN1019755B CN89100746A CN89100746A CN1019755B CN 1019755 B CN1019755 B CN 1019755B CN 89100746 A CN89100746 A CN 89100746A CN 89100746 A CN89100746 A CN 89100746A CN 1019755 B CN1019755 B CN 1019755B
- Authority
- CN
- China
- Prior art keywords
- oil
- casting
- binder
- preparation
- grease
- 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.)
- Expired
Links
- 239000011230 binding agent Substances 0.000 title claims abstract description 20
- 238000005266 casting Methods 0.000 title claims abstract description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000001301 oxygen Substances 0.000 claims abstract description 11
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 11
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000002360 preparation method Methods 0.000 claims abstract description 8
- 239000010426 asphalt Substances 0.000 claims abstract description 7
- 238000007670 refining Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000004519 grease Substances 0.000 claims description 20
- 239000002253 acid Substances 0.000 claims description 7
- 229920002545 silicone oil Polymers 0.000 claims description 5
- 235000013311 vegetables Nutrition 0.000 claims description 3
- 235000003222 Helianthus annuus Nutrition 0.000 claims description 2
- 241000208818 Helianthus Species 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 8
- 239000003921 oil Substances 0.000 abstract description 8
- 235000019198 oils Nutrition 0.000 abstract description 8
- 239000002994 raw material Substances 0.000 abstract description 8
- 238000006116 polymerization reaction Methods 0.000 abstract description 6
- 239000004576 sand Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 235000019484 Rapeseed oil Nutrition 0.000 abstract description 2
- 235000019486 Sunflower oil Nutrition 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000002600 sunflower oil Substances 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 210000002683 foot Anatomy 0.000 abstract 1
- 235000021190 leftovers Nutrition 0.000 abstract 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 abstract 1
- 239000011345 viscous material Substances 0.000 abstract 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 5
- 239000008158 vegetable oil Substances 0.000 description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 235000021388 linseed oil Nutrition 0.000 description 3
- 239000000944 linseed oil Substances 0.000 description 3
- 239000011295 pitch Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000002383 tung oil Substances 0.000 description 3
- 238000003556 assay Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 239000010773 plant oil Substances 0.000 description 2
- 229920003319 Araldite® Polymers 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 244000020551 Helianthus annuus Species 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Lubricants (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The present invention discloses a binder for casting and its preparation method. The adhesive is prepared by taking 70-74% of sunflower oil and rapeseed oil leftovers as main raw materials and adding a proper amount of chemical auxiliary materials such as 201-100% of methyl silicone oil, 1-2% of pentaerythritol, 23-28% of 10% of petroleum asphalt and the like; the preparation method comprises refining the foots oil at 120-150 deg.C until the water content is less than 0.2%, deacidifying at 200-220 deg.C for 3-5 hr, oxygen blowing polymerization at 240 deg.C for 3-5 hr, adding asphalt at 150-200 deg.C, reacting for two hr, and discharging from the kettle at 100-80 deg.C to obtain a viscous substance with special properties. The invention has low cost, excellent adhesive property, and no sand and air hole defects.
Description
The present invention relates to a kind of binder for casting and preparation method thereof, this binding agent is used for the sand mold that foundary industry is manufactured different shape.
Casting is of a great variety with organic binder bond in existing technology, traditional vegetable oil core is promptly arranged, the hot box core of useful synthetic resin again, source by material is divided into three major types: the first kind, and the vegetable oil binding agent is the grease of being produced by vegetable seeds or fruit, mainly based on tung oil, linseed oil, the derivative that belongs to hydrocarbon is chemically belonging to the ester class, is to be made of aliphatic acid and glycerine (glycerine); Second class, synthetic fat binder derives from chemical industry, light industrys such as soapmaking, papermaking and PETROLEUM PROCESSING and pays product.Main component is C
2O-C
3The alkane of O is raw material by paraffin, extracts the residue of synthetic fatty acid, and the solubilizer dilution forms again; The 3rd class.Araldite also is one of novel binders, and this class material temporarily can't satisfy the needs in the casting at present, so use very little.
In the above-mentioned organic binder bond, tung oil in the vegetable oil binding agent, linseed oil is that China's casting applicating history is the longest, one of Modeling Material that processing performance is best, but because tung oil, linseed oil is again the valuable raw material of present national defense industry and other industry, be used for foundary industry from not too reasonable economically, from and invented synthetic fat binder and substituted the vegetable oil binding agent, they have many approximate on technology, but indivedual performances of the latter are not as good as the former, as: it is mobile poor to close fat sand, creep properties is big, adhere to core box etc. easily, this shows that Modeling Material occupies an important position in foundary industry, because it and casting quality, cost, production efficiency and working condition all have confidential relation.
A kind of novel casting industrial modeling material one binder for casting and the preparation method thereof that the objective of the invention is to avoid above-mentioned deficiency of the prior art and provide.
Purpose of the present invention can reach by following measure:
One, the raw material proportioning that binding agent is produced is as follows:
Raw material proportioning: 100%
1. sunflower grease, vegetable seed grease leftover bits and pieces (residual oil): 70%～74%;
2.201～100 methyl-silicone oils are an amount of: (not accounting for percentage);
3. pentaerythrite 1%-2%;
4.10 asphalt 23%～28%.
Two. preparation method:
1. at 120-150 ℃ of refining garbage grease, be refined to water content less than till 0.2%;
2. pentaerythrite falls sour temperature at 200～220 ℃, and falling the acid time is 3～5 hours;
3. 240 ℃ of oxygen blast polymerizations, oxygen supply time is 3～5 hours;
4. drop into pitch at 150～200 ℃, reacted 2 hours;
5. going out the still temperature is 100～80 ℃.The cooling inspection by sampling goes out the still warehouse-in after qualified.
1. slightly refine garbage grease: earlier a small amount of garbage grease is poured in the still, firing up starts agitator then, slowly heat up, when temperature reaches attention this moment about 120 ℃, the oil spilling phenomenon takes place, as excessive in the reaction, can suitably drip standby silicone oil is controlled, slowly add garbage grease while tempering, temperature is raised to 150 ℃ after garbage grease is added to ratio, at this moment constant temperature, be refined to content less than 0.2% o'clock up to garbage grease moisture, refining finishes.
2. acid falls in pentaerythrite: the garbage grease that refining is good, put into the reactive polymeric still that has agitator in proportion, firing up, during oil temperature rise to 180 ℃, start agitator, slowly add the pentaerythrite of ormal weight, approximately added in 2-3 hour, temperature is raised to 220 ℃ again and continues reaction about 3-5 hour, the maintenance esterification is to acid number below 30;
3. oxygen blast polymerization: for fast reaction speed, taking this process of oxygen blast polymerization, mainly is that oxygen is blown in the reactor with air pump, and this moment, profit had bubble to form 240 ℃ of reaction temperatures, about 3～5 hours of reaction time.
4. add 10
#Asphalt: a certain amount of asphalt is put into another still, dissolve, stir and to join temperature and dropped in 150 ℃ the polymeric kettle for behind the liquid, fully mixed about 2 hours, after reacting completely, reduce the temperature to below 100-80 ℃, by the testing department sampling, can go out the still warehouse-in after the assay was approved.
Advantage of the present invention is: the value that has improved plant oil leftover, garbage grease is digested on the spot, with low cost, raw material sources are abundant, and process equipment is simple, and adhesive property is good, solved the valuable shortage of pure vegetable oil, remedy the deficiency that mineral oil leftover bits and pieces binding agent brings for the core sand processing performance, improved the value of plant oil leftover, be new approach of foundary industry type selecting material developing.
Embodiment: below in conjunction with the concrete detailed description technical process of the present invention of implementing.
1. use still to hold 500 kilograms;
2. raw material uses: 365 kilograms of garbage greases, 0.25 kilogram of 201-100 methyl-silicone oil, 10 kilograms of pentaerythrites, 125 kilograms of pitches;
3. producers 2 people,
4. preparation method:
(1) refining sunflower oil, rapeseed oil garbage grease: the raw material garbage grease is put into the reactive polymeric still for 365 kilograms, starting point is burnt blast furnace and is heated, because garbage grease moisture is bigger, the height that edges up then along with the oil temperature, drip silicone oil according to the rise degree of oil, excessive to control oily foam, when the oily foam of moisture evaporation can prepare to throw in auxiliary material in beginning to disappear, the highest control of moisture processing procedure temperature has 200 ℃, and suitably starts agitator.
(2) acid falls in pentaerythrite: when the garbage grease temperature that refining treatment is crossed is elevated to 200～220 ℃, start agitator, slowly add pentaerythrite while stirring.
(3) oxygen blast polymerization: the rapid 240 ℃ of left and right sides constant temperature that heat up of the garbage grease that adds pentaerythrite, air blowing oxygen supply 3-4 hour makes fully reactive polymeric of oil.
(4) add 10
#Asphalt after polymerization: oxygen blast is aggregated to a certain degree garbage grease when being cooled to 200 ℃, starts to stir and drop into pitch, treat that dissolving the back with oil fully continues to lower the temperature about about 100 ℃-80 ℃.
(5) inspection by sampling: cool the temperature to the finished product inspection by sampling about 80-100 ℃, go out still after qualified to adorn in 180 kilograms of pail packs and can put in storage, whole technology was carried out time accumulative total 24 hours.
This still output: 497 kilograms, wherein lose quantity and be moisture evaporation and go out still and spill stream.
Assay: viscosity: 24 seconds, acid value: 31.5 milliliters/gram, intensity 15.3 kilograms per centimeter met technical standard.
Claims (2)
1, a kind of binder for casting is characterized in that the composition of this binding agent and degree thereof are:
(1) sunflower grease, vegetable seed grease leftover bits and pieces: 70%～74%
(2) 201～100 methyl-silicone oils, an amount of (not accounting for percentage);
(3) pentaerythrite 1%～2%;
(4) 10 asphalt 23%～28%.
2, a kind of preparation method of binder for casting as claimed in claim 1 is characterized in that the preparation method of this binding agent is:
(1), is refined to water content less than till 0.2% at 120-150 ℃ of refining garbage grease;
(2) pentaerythrite falls sour temperature at 200～220 ℃, and falling the acid time is 3～5 hours;
(3) at the poly-platform of 240 ℃ of oxygen blast, oxygen supply time is 3～5 hours;
(4) drop into pitch at 150～200 ℃, reacted 2 hours;
(5) going out the axe temperature is 100～80 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN89100746A CN1019755B (en) | 1989-02-05 | 1989-02-05 | Binder for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN89100746A CN1019755B (en) | 1989-02-05 | 1989-02-05 | Binder for casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1044607A CN1044607A (en) | 1990-08-15 |
| CN1019755B true CN1019755B (en) | 1992-12-30 |
Family
ID=4854007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN89100746A Expired CN1019755B (en) | 1989-02-05 | 1989-02-05 | Binder for casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1019755B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049616C (en) * | 1994-05-23 | 2000-02-23 | 王清泉 | Binder for casting core and synthesis technology |
| CN102659425B (en) * | 2012-04-19 | 2013-11-20 | 沈阳东大冶金科技股份有限公司 | Passivated drainage sand with coating for ladle refining and preparation method thereof |
| CN106734862A (en) * | 2016-12-16 | 2017-05-31 | 池州恒和精密机械有限公司 | A kind of chemicosolidifying sand casting binding agent |
| CN106955966B (en) * | 2017-04-07 | 2019-05-03 | 郑宏伟 | A kind of casting inorganic binder and preparation method thereof |
-
1989
- 1989-02-05 CN CN89100746A patent/CN1019755B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1044607A (en) | 1990-08-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |