CN1032127A - Composite type binding material for casting - Google Patents
Composite type binding material for casting Download PDFInfo
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- CN1032127A CN1032127A CN 87102511 CN87102511A CN1032127A CN 1032127 A CN1032127 A CN 1032127A CN 87102511 CN87102511 CN 87102511 CN 87102511 A CN87102511 A CN 87102511A CN 1032127 A CN1032127 A CN 1032127A
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Abstract
Composite type binding material for casting is to be used for casting the core sand that core pattern is manufactured in processing.It is mixed with the acid-soluble oil that acid, alkali refining inferior horn or the inferior horn acid of natural dryness, semi-drying and other oil sludge of vegetable oil inferior horns or oil make only by oil normal pressure or decompression residuum, adds drier, a kind of binding material for casting that anticorrisive agent, aromatic form.Characteristics are that cost is low, and capability and performance is stable; Performance is good, the intensity height; Do not use kerosene, diesel oil, save the energy, use and deposit safety.
Description
The present invention relates to the molding sand binding material that a kind of metal casting is used.
As the core sand of different shape sophisticated core, what tradition was used mainly is tung oil, the natural dryness of flax wet goods one class, semi-drying oils in metal casting processing.Along with the development of foundary industry, the binding material that tradition is used is because the cost height, and the source is restricted, the long-term storage reason such as rotten of easily becoming sour, and the demand for development of incompatibility foundary industry more and more, and be difficult to satisfy the needs of Foundry Production.Thereby artificial synthetic binding material occurred, and replaced the binding material of traditional use gradually.Using more, more general artificial synthetic binding material for casting at present in Foundry Production is that to produce the synthetic fatty acid bottoms that synthetic fatty acid produces with the paraffin wax oxidation be that raw material adds the synthetic fat mold casting binding material that the kerosene dilution forms.This binding material is owing to kind, the specification of the employed raw material paraffin wax of different manufacturers have nothing in common with each other, the oxidizing condition and the distillation degree of depth are different, therefore composition, the physical-chemical property of bottoms differ bigger, the binding material quality instability that is synthesized, the quality that is difficult for the assurance casting is brought difficulty to Foundry Production.Use this binding material will consume a large amount of kerosene, this also is difficult to satisfy the demand under the situation of energy scarcity.
Another kind of synthesis type binding material for casting is often to subtract residual oil with oil to add the binding material for casting that diesel fuel dilution forms, because its intensity is low, other physical properties are relatively poor, and will consume a large amount of diesel oil, and that uses at present is less.
In addition, the use vegetable oil inferior horn that also has in casting processing is made binding material, but its quality instability, and it is rotten easily to become sour, and intensity is on the low side, therefore uses seldom.
The purpose of this invention is to provide a kind of composite type binding material for casting.Its advantage is that performance quality is stable, and cost is low, good fluidity, and the intensity height, mucous membrane, creep are not little, and deformability, collapsibility, antiseized grittiness are good.
The acid-soluble oil that composite type binding material for casting adopts the acid of acid, alkali refining inferior horn or the inferior horn of the greasy filth inferior horn of oil normal pressure or decompression residuum and natural dryness, semi-drying and other vegetable oil or oil to make only mixes adding drier, anticorrisive agent, aromatic and makes.
Oil normal pressure or decompression residuum can be normal pressure or the decompression residuum during oil refinery produces, and also can be normal pressure or decompression residuum during petroleum cracking is produced, preferably adopt freezing point at normal, decompression residuum more than 6 ℃.
Natural dryness, semi-drying and other vegetable oil comprise: tung oil, perilla oil, hemp oil, inferior linseed oil, bluish dogbane oil, siritch, Chinese catalpa oil, peanut oil, soya-bean oil, corn oil, rice bran oil, persimmon seed oil, rapeseed oil.
Make that binding material for casting can adopt under one or more greasy filth in the above-mentioned crude vegetal again or acid, alkali refining inferior horn or the acid of oil, the acid-soluble oil that the acid of alkali refining inferior horn makes only mix with residual oil.
Catalyst can use aphthenic acids or other to have and urge the organic carboxyl acid of the effect of doing such as iron, manganese, cobalt, lead, aluminium, the zinc salt of naphthoic acid, in metal oxide such as manganese oxide, lead oxide, zinc oxide cobalt oxide, the aluminium oxide any also can two or more compound uses.
Anticorrisive agent can adopt any in formaldehyde, acetaldehyde, the acid of styrax class or the salt, also can two or more compound uses.
Aromatic can adopt commercially available any aromatic essence that mixes or dissolve each other mutually with binding material.
Owing to make the oil sludge of vegetable oil of binding material for casting or acid, alkali refining inferior horn, wherein contain organic matter and be generally 30%(weight) more than, be preferably contain organic matter 40～60%(weight).Help product quality, reduce the cost of product.
Acid-soluble oil obtains like this: the acid of oil sludge of vegetable oil or oil, alkali refining inferior horn are being used concentration 95%(weight under normal temperature, the normal pressure) more than, be preferably 98%(weight) the concentrated sulfuric acid under churned mechanically condition, mix, carry out the sedimentation layering then, remove lower layer of water and impurity, the upper strata is acid-soluble oil, the available as required hot wash acid-soluble oil more than 80 ℃ is to reduce the content of acid in the oil.
In the clean system process of acid, the sulfuric acid consumption is 2～10% of an oily inferior horn weight, and the time of mixing is 10 minutes～1 hour, is generally 20～40 minutes.) sedimentation time is more than 3 hours, be generally 5～6 hours.
Adopt acid, the alkali refining inferior horn of greasy filth or oil to mix the manufacturing binding material for casting with residual oil, acid, the alkali refining inferior horn of greasy filth or oil are 20～80%(weight), residual oil is 80～20%(weight), under the acid of general greasy filth or oil, the alkali refining is 45～55%(weight again), residual oil is 55～45%(weight).Acid, alkali refining inferior horn and mixtures of residua weight with greasy filth or oil are 100%, and catalyst adds 4～20%, is generally 8～12%.Anticorrisive agent adds 0～5%, is generally 0～2%.Aromatic adds 0～0.8%, is generally 0.2～0.5%.
Adopt acid oil to mix with residual oil and make binding material for casting, acid-soluble oil is 20～80%(weight), residual oil is 80～20%(weight), general acid-soluble oil is 40～60%(weight), residual oil is 60～40%(weight).With acid-soluble oil and mixtures of residua weight is 100%, and drier adds 4～20%(weight), be generally 6～10%(weight).Anticorrisive agent adds 0～5%(weight), be generally 0～2%(weight).Aromatic adds 0～0.8%(weight), be generally 0.2～0.5%(weight).
Adopt acid, the alkali refining inferior horn of greasy filth or oil, acid-soluble oil, residual oil three mixture is made binding material for casting, acid, the alkali refining inferior horn of greasy filth or oil are 30～50%(weight), acid-soluble oil is 10～35%(weight), residual oil is 30～50%(weight).Acid, the alkali refining inferior horn of general preferably greasy filth or oil are 35～45%(weight), acid-soluble oil is 15～25%(weight) residual oil is 35～45%(weight).With above-mentioned three kinds of mixture of substances weight is 100%, and drier adds 4～20%, is generally 8～14%.Anticorrisive agent adds 0～5%, is generally 0～2%.Aromatic adds 0～0.8%, is generally 0.2～0.5%.
Adopt composite type binding material for casting to make foundry goods core film, cohesive force is strong.Under the condition that obtains same intensity, compare the binding material that to save more than 30% with synthetic fat type binding material, and improved the aeration of core sand; The core creep properties is little, has guaranteed the dimensional accuracy of foundry goods, has improved casting quality; Core baking temperature accommodation is wide, and it is little that the core size distortion is influenced by temperature fluctuation, compares with synthetic fat type binding material, and foundry goods is because the percent defective that causes of pore reduces to 2～3% by 6～7%, the binding material steady quality, and period of storage is long; Do not use kerosene, diesel oil, save the energy; Use composite type binding material for casting to manufacture core, core and foundry goods easily break away from, and the core collapsibility is good, and cast cleaning is easy, not scab of foundry goods any surface finish, and defective is few, so deformability and collapsibility are good; Good fluidity, binding material use, store convenient, safety.
Be the embodiment of composite type binding material for casting and composite casting is used for casting processing with binding material with binding material and synthetic fat mold casting effect comparison below.
Claims (4)
1, a kind of binding material for casting, it is characterized in that by oil normal pressure or decompression residuum, natural dryness or semi-drying oil or other plant oil, comprising tung oil, perilla oil, hemp oil, linseed oil, bluish dogbane oil, siritch, Chinese catalpa oil, soya-bean oil, corn oil, rice bran oil, cottonseed oil, the greasy filth inferior horn or the oleic acid of one or more vegetable oil in the rapeseed oil, the mixture that acid-soluble oil that alkali refining inferior horn or inferior horn acid make is only formed has to urge with petroleum naphthenic acid or other to be done in the organic carboxyl acid of effect such as the iron of naphthoic acid, manganese, cobalt, plumbous, aluminium, zinc salt or metal oxide, as: manganese oxide, aluminium oxide, zinc oxide, in the cobalt oxide one or more are drier, formaldehyde, acetaldehyde, a kind of composite type binding material for casting in acid of styrax class or the salt for the aromatic composition that anticorrisive agent reaches and above-mentioned substance is miscible.
2, by the described binding material for casting of claim 1, the soda acid refining inferior horn that it is characterized in that greasy filth inferior horn or oil is 20～80%(weight), residual oil is 80～20%(weight) acid, the alkali refining inferior horn that generally are preferably greasy filth inferior horn or oil be 45～55%(weight) residual oil is 55～45%(weight), weight with greasy filth inferior horn (acid, the alkali refining inferior horn of oil)+residual oil is 100%, drier is 4～20%, be generally 8～12%, anticorrisive agent is 0～5%, be generally 0～2%, aromatic is 0～0.8%, is generally 0.2～0.5%.
3, by the described binding material for casting of claim 1, it is characterized in that acid-soluble oil is 20～80%(weight), residual oil is 80～20%(weight), preferably acid-soluble oil is 40～60%(weight), slag is 60～40%(weight), with acid-soluble oil+residual oil weight is 100%, and drier is 4～20%, is generally 6～10%, anticorrisive agent is 0～5%, be generally 0～2%, aromatic is 0～0.8%, is generally 0.2～0.5%.
4, by the described binding material for casting of claim 1, it is characterized in that acid-soluble oil be 10～～35%(weight), the acid of greasy filth inferior horn or oil, the alkali refining inferior horn is 30～50%(weight), residual oil is 30～50%(weight) preferably acid-soluble oil be 15～25%(weight), the acid of greasy filth inferior horn or oil, the alkali refining inferior horn is 35～45%(weight), residual oil is 35～45%(weight) with acid-soluble oil+greasy filth inferior horn or oily acid, the weight of alkali refining inferior horn+residual oil is 100%, drier is 4～20% to be generally 8～14%, anticorrisive agent is 0～5%, be generally 0～2%, aromatic is 0～0.8%, is generally 0.2～0.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87102511 CN1008243B (en) | 1987-04-04 | 1987-04-04 | Composite type binding material for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87102511 CN1008243B (en) | 1987-04-04 | 1987-04-04 | Composite type binding material for casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1032127A true CN1032127A (en) | 1989-04-05 |
| CN1008243B CN1008243B (en) | 1990-06-06 |
Family
ID=4813989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87102511 Expired CN1008243B (en) | 1987-04-04 | 1987-04-04 | Composite type binding material for casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1008243B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043314C (en) * | 1995-04-13 | 1999-05-12 | 华中理工大学 | Modified soluble organic adhesive for casting |
| CN1049616C (en) * | 1994-05-23 | 2000-02-23 | 王清泉 | Binder for casting core and synthesis technology |
| CN103495699A (en) * | 2013-10-16 | 2014-01-08 | 合肥市田源精铸有限公司 | Molding sand for producing large supercritical cast steel and production method of molding sand |
| CN103495695A (en) * | 2013-10-16 | 2014-01-08 | 合肥市田源精铸有限公司 | Chilled mud-core molding sand manufactured from chromite sand and method for manufacturing chilled mud-core molding sand |
| CN103495697A (en) * | 2013-10-16 | 2014-01-08 | 合肥市田源精铸有限公司 | Anti-adhesive saw-dust molding sand and preparation method thereof |
| CN103521679A (en) * | 2013-10-16 | 2014-01-22 | 合肥市田源精铸有限公司 | Environment-friendly molding sand for casting ferrous metal and preparation method thereof |
| CN103521680A (en) * | 2013-10-16 | 2014-01-22 | 合肥市田源精铸有限公司 | Permeable anti-adhesive molding sands and preparation method thereof |
| CN103521677A (en) * | 2013-10-16 | 2014-01-22 | 合肥市田源精铸有限公司 | Mud-core molding sand and preparation method thereof |
| CN103521687A (en) * | 2013-10-16 | 2014-01-22 | 合肥市田源精铸有限公司 | Molding sand for large cast steel roll and preparation method of molding sand |
| CN103567372A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | Molding sand with high gas permeability for casting and preparation method thereof |
| CN103567363A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | High-collapsibility water-glass sand and preparation method thereof |
| CN103567362A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | Pre-coated sand with high strength and low gas evolution rate and preparation method thereof |
| CN105085877A (en) * | 2015-08-04 | 2015-11-25 | 宁夏共享化工有限公司 | Preparation methods of binding agent for casting and matched curing agent thereof |
| CN105669957A (en) * | 2016-03-07 | 2016-06-15 | 宁夏共享化工有限公司 | Production method of resin for casting |
-
1987
- 1987-04-04 CN CN 87102511 patent/CN1008243B/en not_active Expired
Cited By (14)
| 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 |
| CN1043314C (en) * | 1995-04-13 | 1999-05-12 | 华中理工大学 | Modified soluble organic adhesive for casting |
| CN103567372A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | Molding sand with high gas permeability for casting and preparation method thereof |
| CN103567362A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | Pre-coated sand with high strength and low gas evolution rate and preparation method thereof |
| CN103567363A (en) * | 2013-10-11 | 2014-02-12 | 铜陵市经纬流体科技有限公司 | High-collapsibility water-glass sand and preparation method thereof |
| CN103495695A (en) * | 2013-10-16 | 2014-01-08 | 合肥市田源精铸有限公司 | Chilled mud-core molding sand manufactured from chromite sand and method for manufacturing chilled mud-core molding sand |
| CN103521680A (en) * | 2013-10-16 | 2014-01-22 | 合肥市田源精铸有限公司 | Permeable anti-adhesive molding sands and preparation method thereof |
| CN103521677A (en) * | 2013-10-16 | 2014-01-22 | 合肥市田源精铸有限公司 | Mud-core molding sand and preparation method thereof |
| CN103521687A (en) * | 2013-10-16 | 2014-01-22 | 合肥市田源精铸有限公司 | Molding sand for large cast steel roll and preparation method of molding sand |
| CN103521679A (en) * | 2013-10-16 | 2014-01-22 | 合肥市田源精铸有限公司 | Environment-friendly molding sand for casting ferrous metal and preparation method thereof |
| CN103495697A (en) * | 2013-10-16 | 2014-01-08 | 合肥市田源精铸有限公司 | Anti-adhesive saw-dust molding sand and preparation method thereof |
| CN103495699A (en) * | 2013-10-16 | 2014-01-08 | 合肥市田源精铸有限公司 | Molding sand for producing large supercritical cast steel and production method of molding sand |
| CN105085877A (en) * | 2015-08-04 | 2015-11-25 | 宁夏共享化工有限公司 | Preparation methods of binding agent for casting and matched curing agent thereof |
| CN105669957A (en) * | 2016-03-07 | 2016-06-15 | 宁夏共享化工有限公司 | Production method of resin for casting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1008243B (en) | 1990-06-06 |
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