CN108127075A - A kind of sand mulling craft for being used to improve resin sand comprehensive performance - Google Patents
A kind of sand mulling craft for being used to improve resin sand comprehensive performance Download PDFInfo
- Publication number
- CN108127075A CN108127075A CN201711449245.2A CN201711449245A CN108127075A CN 108127075 A CN108127075 A CN 108127075A CN 201711449245 A CN201711449245 A CN 201711449245A CN 108127075 A CN108127075 A CN 108127075A
- Authority
- CN
- China
- Prior art keywords
- sand
- component
- mulling
- comprehensive performance
- foundry
- 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
- 239000004576 sand Substances 0.000 title claims abstract description 121
- 229920005989 resin Polymers 0.000 title claims abstract description 23
- 239000011347 resin Substances 0.000 title claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 42
- 239000011230 binding agent Substances 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 24
- 238000005266 casting Methods 0.000 claims abstract description 8
- 239000004115 Sodium Silicate Substances 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 6
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical group [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 5
- 239000005011 phenolic resin Substances 0.000 claims description 5
- 229920001568 phenolic resin Polymers 0.000 claims description 5
- 229920001228 polyisocyanate Polymers 0.000 claims description 4
- 239000005056 polyisocyanate Substances 0.000 claims description 4
- -1 phenolic aldehyde Chemical class 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 11
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 230000002411 adverse Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 description 6
- 230000007547 defect Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 208000002352 blister Diseases 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 238000005325 percolation Methods 0.000 description 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- B22C1/18—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 inorganic agents
- B22C1/186—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 inorganic agents contaming ammonium or metal silicates, silica sols
- B22C1/188—Alkali metal silicates
-
- 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
- B22C1/2253—Condensation polymers of aldehydes and ketones with phenols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
- B22C5/0409—Blending, mixing, kneading or stirring; Methods therefor
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses a kind of for improving the sand mulling craft of resin sand comprehensive performance, belong to casting technology field.This be used for improve resin sand comprehensive performance process of sand mulling craft be：Foundry sand is divided at least two parts, every part of foundry sand is corresponded to be premixed to form pre-blended mixture with a component, every part of component is one or more added materials not chemically reacted each other, and every part of component is different, and multigroup pre-blended mixture is mixed eventually to form mixed mixture eventually.The present invention is conducive to the reaction that fully chemically reacts or mutually promote occurs between each premix to form molding bonded, avoid causing the waste of binding agent, mulling can be rapidly completed, it avoids adversely affecting caused by mulling time length, the end obtained by the technique mixes mixture evenly, improves the comprehensive performance of mulling；In addition, pre-blended mixture can be placed the long period, carried out when needing to use mixed eventually.It can also accomplish for complex-shaped sand core simultaneously with mixing with ensureing the freshness of core sand.
Description
Technical field
The present invention relates to casting technology field more particularly to a kind of sand mulling crafts for being used to improve resin sand comprehensive performance.
Background technology
The sand mo(u)ld sand of cast article needs to add in a variety of added materials by processing compound in foundry sand to meet it
The performance indicators such as intensity, such as binding agent, accelerating agent and adjuvant during added material is added in, need to use casting
Sand is sufficiently mixed with added material.
The sand mulling craft of generally use is poured into container again first to quantify foundry sand, will then be matched by technological requirement
Good a variety of added materials are added in container simultaneously or successively, and finally by motor driving agitating shaft rotation, mixture is carried out
Stirring, by stirring completion after a certain period of time.Existing sand mulling craft all be while or successively add in binding agent, sand grain surface packet
Ratio, the composition for wrapping up in binding agent are different, and many binding agents just may two-by-two be mixed or be occurred from each other before sand grains is contacted
Chemical reaction forms resin groups, fails effectively to wrap up sand grains, and the sand grains of different binding agents is mainly wrapped up in the foundation of sand core strength
Bonded bridge is established between sand grains and sand grains after consolidation, bonded bridge position must be different binding agents, then anti-by chemistry
It should be so as to form final sand core strength, so as to meet solid cast pattern workable for production.
Existing sand mulling craft can not meet the intensity requirement of sand core due to there is the problems such as cohesive bolus, mulling is uneven.
To improve the intensity requirement of sand core, generally use improves the means such as binding agent addition, extension mulling time and makes up.Extend mulling
It is excessively high that time can cause mulling process medium temperature to rise, and collapsibility declines, and mulling efficiency declines；Improving binding agent addition can generate
Binding agent use cost increases, core sand gas forming amount is big, bleb defect and percolation ratio height, core sand poor fluidity, sand core are penetrated not
A series of variations such as real ratio of defects is high, shooting pressure increase, cavity pressure is big, die life reduces, go in casting
How industry obtains enough sand core strengths with lower binding agent addition is a problem to be solved.In addition, existing mulling
Since sand mixed once being completed, the sand needs mixed timely use technique, otherwise can harden quickly.
Therefore, it is used to improve the sand mulling craft of resin sand comprehensive performance to solve the above problems there is an urgent need for a kind of.
Invention content
The purpose of the present invention is to provide a kind of for improving the sand mulling craft of resin sand comprehensive performance so that binding agent with
Foundry sand effectively mixes, and improves the comprehensive performance of mulling.
For this purpose, the present invention uses following technical scheme：
A kind of sand mulling craft for being used to improve resin sand comprehensive performance, is divided at least two parts, described in every part by foundry sand
Foundry sand is corresponded to be premixed to form pre-blended mixture with a component, every part of component be it is one or more each other not
The added material chemically reacted, every part of component is different, and multigroup pre-blended mixture is mixed eventually to form dark eventually close
Object.
Preferably, the end of multigroup pre-blended mixture does time as 10-30s.
Preferably, the foundry sand is divided into two parts, the component is two parts, respectively the first component and second group
Point.
Preferably, first component is phenolic resin, second component is polyisocyanate.
Preferably, the addition of the phenolic resin is the 0.25%-0.80% of the foundry sand total amount, it is described poly-
The addition of isocyanates is the 0.25%-0.80% of the foundry sand total amount.
Preferably, first component is inorganic sodium silicate binder, second component is powder additive.
Preferably, the addition of the inorganic sodium silicate binder is the 1.0%-2.5% of the foundry sand total amount,
The addition of the powder additive is the 0.4%-1.5% of the foundry sand total amount.
Beneficial effects of the present invention：
The sand mulling craft for being used to improve resin sand comprehensive performance of the present invention, is divided at least two parts, every part by foundry sand
Foundry sand is corresponded to be uniformly mixed to form pre-blended mixture with a component, every part of component be it is one or more between not
The added material chemically reacted, mixed formation uniformly mixed end mixes mixture to multigroup pre-blended mixture eventually.Due to every portion
One or more added materials in component do not react each other, are not easy to be formed cohesive bolus, every part of component respectively with
After a foundry sand mixing, obtained pre-blended mixture equably wraps up one or more added materials, a variety of premix mixing
The end that object is finally mixed to get again, which mixes mixture, can equably wrap up a variety of added materials.It is mixed eventually by premix, be conducive to
The reaction that fully chemically reacts or mutually promote occurs between each premix and forms molding bonded, is not easy to be formed during mulling
Bolus is bonded, causes the waste of binding agent, saves mulling cost；Simultaneously as the formation of cohesive bolus is reduced, it can be rapidly
Mulling is completed, shortens the mulling time, avoids adverse effect caused by mulling time length, the end obtained by the technique drifts along or through
It closes object evenly, improves the comprehensive performance of mulling.
The added material that the component added in every part of foundry sand during due to premix is not chemically reacted between,
Therefore pre-blended mixture can be placed the long period, carry out mixed eventually, a variety of added materials during final mixing when needing with sand again
Just react, it is more demanding to core sand for sand using amount is small or complex-shaped sand core, this technique can accomplish with
With mixing, it ensure that core sand is fresh enough, it is advantageous for coremaking.
Specific embodiment
The technical solution further illustrated the present invention below by specific embodiment.
Embodiment one
The present invention provides a kind of for improving the sand mulling craft of resin sand comprehensive performance, foundry sand is divided at least two
Part, every part of foundry sand is corresponded to be uniformly mixed to form pre-blended mixture with portion component, every part of component be it is one or more that
The added material not chemically reacted between this, every part of component is different, and multigroup pre-blended mixture is uniformly mixed to be formed
Mixed mixture eventually, in favor of occurring fully to chemically react or mutually promote between each pre-blended mixture, reaction forms molding bonded..
Due to not reacting each other between one or more added materials in every a component, it is not easy to be formed cohesive bolus, every part
After component mixes respectively with a foundry sand, obtained pre-blended mixture equably wraps up added material, a variety of premix mixing
The end that object is finally mixed to get again, which mixes mixture, can equably wrap up a variety of added materials.It is mixed eventually by premix, mulling
It is not easy to form cohesive bolus in the process, causes the waste of binding agent, save mulling cost；Simultaneously as reduce cohesive bolus
Formation, mulling can be quickly completed, shorten the mulling time, avoid the mulling time length caused by adversely affect, by this
The end that technique obtains mixes mixture evenly, improves the comprehensive performance of mulling.
Since mulling process needs the stringent control mulling time, the time is too short to make that mulling is uneven, and overlong time then makes
Core sand temperature rises excessively high, collapsibility decline.The time of multigroup pre-blended mixture mixing is 10-30s, and the preferably time is 20s.Due to
The added material that the component added in every part of foundry sand during premix is not chemically reacted between, therefore premix mixing
Object can place 6h-10h, be carried out again when needing with sand mixed eventually, and a variety of added materials just react during final mixing, for
Sand using amount is small, complex-shaped sand core, can accomplish, with with mixed, to ensure that core sand is fresh enough, advantageous for coremaking.
This is used in the sand mulling craft for improving resin sand comprehensive performance, and the quantity of component can be selected freely according to actual needs
It selects, in the present embodiment, component is two parts, and foundry sand is divided into two parts, Yi Fenjia by respectively the first component and the second component
Enter the first component and carry out premix the first pre-blended mixture of formation, it is pre- dark that another second component of addition carries out premix formation second
Close object.Two parts of foundry sands and the mixing of two parts of components can be carried out at the same time, and after the completion of premix, the first pre-blended mixture and second is in advance
Mixed mixture be mixed to form mixed mixture eventually.
Specifically, in the present embodiment, the first component is phenolic resin, and the second component is polyisocyanate.Phenolic resin
Addition be foundry sand total amount 0.25%-0.80%, the amount of being preferably added to be foundry sand total amount 0.50%.Poly- isocyanide
The addition of acid esters is the 0.25%-0.80% of foundry sand total amount, and the amount of being preferably added to is the 0.50% of foundry sand total amount.
Embodiment two
This is used to improve sand mulling craft of resin sand comprehensive performance：Foundry sand is divided at least two parts, every part of casting
Corresponded to sand and be uniformly mixed to form pre-blended mixture with a component, every part of component be it is one or more between do not occur
The added material of chemical reaction, every part of component is different, and multigroup pre-blended mixture is uniformly mixed to form mixed mixture eventually.It is more
The time of group pre-blended mixture mixing is 10-30s, and the preferably time is 20s.
In the present embodiment, component is two parts, and foundry sand is divided into two parts by respectively the first component and the second component,
Portion adds in the first component and carries out premix the first pre-blended mixture of formation, another second component of addition carries out premix and forms second
Pre-blended mixture.Two parts of foundry sands and the mixing of two parts of components can be carried out at the same time, after the completion of premix, the first pre-blended mixture and
Second pre-blended mixture be mixed to form mixed mixture eventually.
What is different from the first embodiment is that in the present embodiment, the first component is inorganic sodium silicate binder, the second component is
Powder additive.The addition of inorganic sodium silicate binder is the 1.0%-2.5% of foundry sand total amount, and the amount of being preferably added to is casting
Make 1.8% with sand total amount.The addition of powder additive is the 0.4%-1.5% of foundry sand total amount, and the amount of being preferably added to is
The 1.0% of foundry sand total amount.
Two embodiments of summary, previous sand mulling craft, due to using foundry sand and a variety of added materials is same
When the method that mixes, can usually generate in the presence of bond bolus, mulling is uneven the problems such as, to meet sand core strength requirement, usually
It is made up using improving binding agent addition or extending the means such as mulling time.Extending the mulling time can cause temperature to rise excessively high, core sand
Hydraulic performance decline, mulling efficiency decline；Improve binding agent addition can generate binding agent use cost increases, core sand gas forming amount is big,
Bleb defect and percolation ratio height, core sand poor fluidity, sand core penetrate high unreal ratio of defects, shooting pressure increase, cavity pressure
Greatly, a series of variations such as die life reduction.
And provided by the present invention for improving the sand mulling craft of resin sand comprehensive performance, by more parts of foundry sands and more parts of groups
Divide premix a period of time, it is a variety of since component is one or more added materials not chemically reacted each other
The premix of component and foundry sand can be carried out at the same time, and multigroup pre-blended mixture finally is put together mixed a period of time eventually, is made
The sand for wrapping up different component binders, accelerating agent or catalyst stirs evenly, due to not having what can be chemically reacted mutually to add
Mixed process while adding material, uses so bonding the invalid binding agent such as bolus, is also bonded in without bonding bolus mixed
Situation in sand machine, not only the cleaning of sand mixer binding agent is difficult for the sand mulling craft of the prior art, also result in consumption of binder increase,
The problems such as added cost.In sand mulling craft provided by the present invention for improving resin sand comprehensive performance, a variety of added materials
All mixing exists only in the mixed stage eventually, and the mixed stage is nor binding agent wraps up sand used by the sand mulling craft of the prior art eventually
The mode of grain, but the sand of wrapped different binding agents is made to be evenly distributed, the performance of mixed sand is more preferable, is conducive to follow-up
The sand core consolidation stage sand grains stick to each other.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating example of the present invention, and it is pair to be not
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (7)
1. a kind of sand mulling craft for being used to improve resin sand comprehensive performance, which is characterized in that foundry sand is divided at least two parts,
Every part of foundry sand is corresponded to be premixed to form pre-blended mixture with a component, every part of component be it is one or more that
The added material not chemically reacted between this, every part of component is different, and multigroup pre-blended mixture is mixed eventually to be formed
Mixed mixture eventually.
2. the sand mulling craft according to claim 1 for being used to improve resin sand comprehensive performance, which is characterized in that multigroup described
The end of pre-blended mixture does time as 10-30s.
3. the sand mulling craft according to claim 1 for being used to improve resin sand comprehensive performance, which is characterized in that the casting
It is divided into two parts with sand, the component is two parts, respectively the first component and the second component.
4. the sand mulling craft according to claim 3 for being used to improve resin sand comprehensive performance, which is characterized in that described first
Component is phenolic resin, and second component is polyisocyanate.
5. the sand mulling craft according to claim 4 for being used to improve resin sand comprehensive performance, which is characterized in that the phenolic aldehyde
The addition of resin is the 0.25%-0.80% of the foundry sand total amount, and the addition of the polyisocyanate is the casting
Make the 0.25%-0.80% with sand total amount.
6. the sand mulling craft according to claim 3 for being used to improve resin sand comprehensive performance, which is characterized in that described first
Component is inorganic sodium silicate binder, and second component is powder additive.
7. the sand mulling craft according to claim 6 for being used to improve resin sand comprehensive performance, which is characterized in that described inorganic
The addition of sodium silicate binder is the 1.0%-2.5% of the foundry sand total amount, and the addition of the powder additive is
The 0.4%-1.5% of the foundry sand total amount.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711449245.2A CN108127075A (en) | 2017-12-27 | 2017-12-27 | A kind of sand mulling craft for being used to improve resin sand comprehensive performance |
| PCT/CN2018/074088 WO2019127800A1 (en) | 2017-12-27 | 2018-01-25 | Sand mixing process for improving comprehensive property of resin sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711449245.2A CN108127075A (en) | 2017-12-27 | 2017-12-27 | A kind of sand mulling craft for being used to improve resin sand comprehensive performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108127075A true CN108127075A (en) | 2018-06-08 |
Family
ID=62393489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711449245.2A Pending CN108127075A (en) | 2017-12-27 | 2017-12-27 | A kind of sand mulling craft for being used to improve resin sand comprehensive performance |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108127075A (en) |
| WO (1) | WO2019127800A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019127800A1 (en) * | 2017-12-27 | 2019-07-04 | 苏州明志科技有限公司 | Sand mixing process for improving comprehensive property of resin sand |
| CN111801180A (en) * | 2019-03-01 | 2020-10-20 | 苏州明志科技股份有限公司 | Core making machine and control method and system thereof |
| CN115475905A (en) * | 2022-09-30 | 2022-12-16 | 濮发林 | A kind of environment-friendly broken porcelain casting mold sand, preparation method and production system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586400A (en) * | 2013-10-31 | 2014-02-19 | 吴江市液铸液压件铸造有限公司 | Preparation process of furan resin sand |
| CN104858361A (en) * | 2015-06-13 | 2015-08-26 | 开封东立高压阀门铸造有限公司 | Self-hardening resin-sand double mixing technique |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1237106A (en) * | 1968-11-30 | 1971-06-30 | British Motor Corp Ltd | Production of foundry cores |
| GB1369445A (en) * | 1971-03-29 | 1974-10-09 | Baker Perkins Ltd | Method and apparatus for preparing foundry moulds and cores |
| FR2504035B1 (en) * | 1981-04-21 | 1986-06-06 | Mitsubishi Heavy Ind Ltd | BLOW MOLDING MACHINE |
| CN101439388A (en) * | 2008-12-18 | 2009-05-27 | 南通华东液压铸业有限公司 | Chromium iron resin mould sand and preparation thereof |
| CN103420639B (en) * | 2013-07-29 | 2015-09-23 | 刘建平 | The compound method of ecological synthesis stone |
| DE102015201614A1 (en) * | 2014-09-10 | 2016-03-10 | Hüttenes-Albertus Chemische Werke GmbH | Two-component binder system for the polyurethane cold box process |
| CN104907498A (en) * | 2015-04-23 | 2015-09-16 | 苏州劲元油压机械有限公司 | Casting technology of hydraulic valve |
| CN105750490B (en) * | 2016-03-23 | 2018-02-09 | 侯松涛 | A kind of puddle mixer |
| CN108127075A (en) * | 2017-12-27 | 2018-06-08 | 苏州明志科技有限公司 | A kind of sand mulling craft for being used to improve resin sand comprehensive performance |
-
2017
- 2017-12-27 CN CN201711449245.2A patent/CN108127075A/en active Pending
-
2018
- 2018-01-25 WO PCT/CN2018/074088 patent/WO2019127800A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586400A (en) * | 2013-10-31 | 2014-02-19 | 吴江市液铸液压件铸造有限公司 | Preparation process of furan resin sand |
| CN104858361A (en) * | 2015-06-13 | 2015-08-26 | 开封东立高压阀门铸造有限公司 | Self-hardening resin-sand double mixing technique |
Non-Patent Citations (2)
| Title |
|---|
| 胡彭生: "《型砂》", 30 April 1980, 《上海科学技术出版社》 * |
| 韩小峰: "《铸造生产与工艺工装设计》", 31 October 2010, 中南大学出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019127800A1 (en) * | 2017-12-27 | 2019-07-04 | 苏州明志科技有限公司 | Sand mixing process for improving comprehensive property of resin sand |
| CN111801180A (en) * | 2019-03-01 | 2020-10-20 | 苏州明志科技股份有限公司 | Core making machine and control method and system thereof |
| CN111801180B (en) * | 2019-03-01 | 2022-04-22 | 苏州明志科技股份有限公司 | Core making machine and control method and system thereof |
| CN115475905A (en) * | 2022-09-30 | 2022-12-16 | 濮发林 | A kind of environment-friendly broken porcelain casting mold sand, preparation method and production system |
| CN115475905B (en) * | 2022-09-30 | 2025-05-16 | 濮发林 | Environmentally friendly broken porcelain casting sand, preparation method and production system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019127800A1 (en) | 2019-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105964891B (en) | A kind of phosphate inorganic adhesive sand with high fluidity and preparation method thereof | |
| CN108127075A (en) | A kind of sand mulling craft for being used to improve resin sand comprehensive performance | |
| US3600203A (en) | Fluidized molding material for manufacturing cores and molds and a method therefor | |
| CN1069559C (en) | Modified water glass for casting and its preparing process | |
| CN100352576C (en) | Molding sand and preparation method thereof | |
| CN101941045B (en) | Preparation method and application of phosphate inorganic casting binder suspension curing agent | |
| CN103586400A (en) | Preparation process of furan resin sand | |
| CN104801664B (en) | A kind of molding sand method for mixing for sand mold 3D printing | |
| CN105081198A (en) | Modified furan resin sand with sodium bentonite for casting steel and preparation method of modified furan resin sand | |
| JPS62130740A (en) | Cold curing composition for foundry sand mandrel and mold | |
| CN110252939A (en) | A kind of sand mold mould regenerating resin sand and its preparation process | |
| CN101439388A (en) | Chromium iron resin mould sand and preparation thereof | |
| CN105108045A (en) | Chopped carbon fiber containing and reinforced type modified furan resin sand for steel casting and preparation method of resin sand | |
| CN105081202A (en) | Nano diatomite containing modified furan resin sand for steel casting and preparation method for nano diatomite containing modified furan resin sand | |
| CN106336164A (en) | Preparation method of insulating baking-free brick | |
| CN101274351B (en) | A kind of foundry binder and preparation method thereof | |
| CN108907070B (en) | Phosphate binder self-hardening sand curing agent and preparation method thereof | |
| CN102909313A (en) | Copper alloy casting core sand and preparation method thereof | |
| CN105108044A (en) | Aluminum-magnesium-silicate-contained modified furan resin sand for steel casting and preparing method for aluminum-magnesium-silicate-contained modified furan resin sand | |
| CN105081203A (en) | Purple-grit-mud-containing high-permeability modified furan resin sand for steel casting and preparation method of purple-grit-mud-containing high-permeability modified furan resin sand | |
| CN105081197A (en) | Modified furan resin sand containing nano-mesoporous alumina and used for steel castings and preparation method thereof | |
| US4212677A (en) | Molding sand mixture for the manufacture of molds and cores | |
| SU1748916A1 (en) | Binder for manufacturing casting bars and heat hardening molds | |
| CN105108046A (en) | High-strength calcium sulphate whisker modified furan resin sand for steel castings and preparation method thereof | |
| CN101433943A (en) | Iron oxide red paint and method for producing the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | 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: 20180608 |
|
| RJ01 | Rejection of invention patent application after publication |