CN105964936A - Wood pulp fiber-enhanced water-soluble mold core and preparation method thereof - Google Patents
Wood pulp fiber-enhanced water-soluble mold core and preparation method thereof Download PDFInfo
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- CN105964936A CN105964936A CN201610090162.8A CN201610090162A CN105964936A CN 105964936 A CN105964936 A CN 105964936A CN 201610090162 A CN201610090162 A CN 201610090162A CN 105964936 A CN105964936 A CN 105964936A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
- B22C9/105—Salt cores
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- 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
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- 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
- B22C1/167—Mixtures of inorganic and organic binding agents
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
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- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Abstract
The invention discloses a wood pulp fiber-enhanced water-soluble mold core. The water-soluble mold core comprises the following raw materials in parts by weight: 40-50 parts of kaolin, 5-10 parts of sodium chloride, 0.5-1 part of sodium tripolyphosphate, 5-10 parts of wood pulp fiber, 0.3-0.5 parts of water-soluble lanolin, 3-5 parts of nano montmorillonite, 0.5-1 part of hydroxy propyl distarch phosphate, 5-10 parts of soluble glass, 0.1-0.15 parts of aluminium isopropoxide, and 10-15 parts of a bonding auxiliary agent. The water-soluble mold core has the advantages of good intensity, stability, low hygroscopicity, difficult generation of cracks and defects, good water soluble collapsibility, easy cleaning, environment protection, and high practical value.
Description
Technical field
The present invention relates to casting technology field, particularly relate to a kind of wood pulp cellulose and strengthen water-soluble core and preparation method thereof.
Background technology
There is a large amount of component in process industry, its inwall is thin-wall complicated structure, and partial lumen is almost closed, and have is connected.At present conventional resin core, the collapsibility performance such as metal-cored are poor, and casting pouring rear interior cavity is difficult to clean up, and affects fineness and the dimensional accuracy of foundry goods inner surface, it is impossible to meet the demand of this type of cast casting.Therefore, high performance water-soluble core is developed the most necessary.
Water-soluble core refers to water-soluble material as binding agent and adds filler, the core then made by different molding modes such as cast, compacting sintering molding.After casting pouring, this core can dissolve defeated and dispersed in water, reaches to clear up the effect of core.Water-soluble core has does not gets angry, it is possible to decrease the feature such as casting defect, easy removing, does not damage foundry goods during cleaning, is particularly suited for complicated inner cavity and the foundry goods in bending duct.Further, water-soluble core is easily recycled, energy-conserving and environment-protective, is a kind of relatively advanced core-making technique, has good application prospect.At present, the combination property of water-soluble core is the best, remains the defects such as cracking poor at core strength, yielding, water-soluble collapsibility be undesirable, therefore limits it and extensively apply.Wood pulp cellulose has good dimensional stability and heat stability, and fracture toughness is strong, and the compatibility is good, by reasonably adding and processing, can be effectively improved the performance of water-soluble core.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of high intensity, the wood pulp cellulose that low moisture absorption, cracking resistance are good strengthen water-soluble core and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of wood pulp cellulose strengthens water-soluble core, and it is to be prepared by the raw material of following weight parts:
Kaolin 40-50, sodium chloride 5-10, sodium tripolyphosphate 0.5-1, wood pulp cellulose 5-10, water solublity lanoline 0.3-0.5, nano imvite 3-5, hydroxypropyl PASELLI EASYGEL 0.5-1, waterglass 5-10, aluminum isopropylate. 0.1-0.15, adhesive aid 10-15；
Described adhesive aid is prepared by the raw materials in: guar gum 3-5, acrylic acid 0.5-1, alkenyl succinic anhydride 0.3-0.5, Ammonium persulfate. 0.01-0.015, calcium lignosulfonate 1-2, Silane coupling reagent KH-570 0.1-0.2, water 40-60；The preparation method of adhesive aid is that guar gum, alkenyl succinic anhydride and calcium lignosulfonate are added to the water 80-90 DEG C of stirring 1-2h, is subsequently adding remaining raw material 60-70 DEG C, 1000-1500r/min stirs 1-2h, after cooling and get final product.
A kind of wood pulp cellulose strengthens the preparation method of water-soluble core, comprises the following steps:
(1) weigh raw material by weight, first by Kaolin and sodium tripolyphosphate co-ground 1-2h, more jointly add batch mixer mixed at high speed 10-15min with waterglass, sodium chloride, then sinter 1-2h in 600-700 DEG C, be ground to 200-300 mesh after cooling, obtain component A；
(2) aluminum isopropylate. is added in the water of 60-80 times of weight, add nano imvite and water solublity lanoline after pH is adjusted to 3-4 and stir 2-4h in 85-95 DEG C, then temperature be adjusted to 40-60 DEG C and add remaining raw material stirring 1-2h, after cooling, obtaining B component；
(3) component A and B component are added mixed at high speed 10-20min after batch mixer, then it is loaded in mould compacting, treats its curing and demolding, at 200-250 DEG C, dry 12-24h, finally according to needs, its profile is carried out machining, obtain wood pulp cellulose and strengthen water-soluble core.
The invention have the advantage that
The present invention is by guar gum, alkenyl succinic anhydride, acrylic acid, compounding and the molding of reaction prepared adhesive aid, beneficially core between calcium lignosulfonate and Silane coupling reagent KH-570, and can be effectively improved tensile property and the resistance to water soak of core；Simultaneously by the interpolation of the raw materials such as wood pulp cellulose, making the water-soluble core prepared have good intensity, stability and agent of low hygroscopicity, be not susceptible to cracking, defect, water-soluble collapsibility is good, it is easy to remove, environmental protection, and practical value is high.
Detailed description of the invention
A kind of wood pulp cellulose strengthens water-soluble core, and it is to be prepared by the raw material of following weight parts:
Kaolin 40, sodium chloride 5, sodium tripolyphosphate 0.5, wood pulp cellulose 5, water solublity lanoline 0.3, nano imvite 3, hydroxypropyl PASELLI EASYGEL 0.5, waterglass 5, aluminum isopropylate. 0.1, adhesive aid 10；
Described adhesive aid is prepared by the raw materials in: guar gum 3, acrylic acid 0.5, alkenyl succinic anhydride 0.3, Ammonium persulfate. 0.01, calcium lignosulfonate 1, Silane coupling reagent KH-570
0.1, water 40；The preparation method of adhesive aid is that guar gum, alkenyl succinic anhydride and calcium lignosulfonate are added to the water 80 DEG C of stirring 1h, is subsequently adding remaining raw material 60 DEG C, 1000r/min stirs 1h, after cooling and get final product.
A kind of wood pulp cellulose strengthens the preparation method of water-soluble core, comprises the following steps:
(1) weigh raw material by weight, first by Kaolin and sodium tripolyphosphate co-ground 1h, more jointly add batch mixer mixed at high speed 10min with waterglass, sodium chloride, then sinter 1h in 600 DEG C, be ground to 200 mesh after cooling, obtain component A；
(2) aluminum isopropylate. is added in the water of 60 times of weight, add nano imvite and water solublity lanoline after pH is adjusted to 3 and stir 2h in 85 DEG C, then temperature be adjusted to 40 DEG C and add remaining raw material stirring 1h, after cooling, obtaining B component；
(3) component A and B component are added mixed at high speed 10min after batch mixer, then it is loaded in mould compacting, treats its curing and demolding, at 200 DEG C, dry 12h, finally according to needs, its profile is carried out machining, obtain wood pulp cellulose and strengthen water-soluble core.
Through inspection, above-mentioned prepared water-soluble core performance is as follows:
Tensile strength: 6.5MPa；
Collapsibility performance: complete defeated and dispersed time≤10min in water；
Anti-moisture absorption property: place 24h under conditions of air humidity 80%, tensile strength reduces by 5.4%.
Claims (2)
1. a wood pulp cellulose strengthens water-soluble core, it is characterised in that it is to be prepared by the raw material of following weight parts:
Kaolin 40-50, sodium chloride 5-10, sodium tripolyphosphate 0.5-1, wood pulp cellulose 5-10, water solublity lanoline 0.3-0.5, nano imvite 3-5, hydroxypropyl PASELLI EASYGEL 0.5-1, waterglass 5-10, aluminum isopropylate. 0.1-0.15, adhesive aid 10-15；
Described adhesive aid is prepared by the raw materials in: guar gum 3-5, acrylic acid 0.5-1, alkenyl succinic anhydride 0.3-0.5, Ammonium persulfate. 0.01-0.015, calcium lignosulfonate 1-2, Silane coupling reagent KH-570 0.1-0.2, water 40-60；The preparation method of adhesive aid is that guar gum, alkenyl succinic anhydride and calcium lignosulfonate are added to the water 80-90 DEG C of stirring 1-2h, is subsequently adding remaining raw material 60-70 DEG C, 1000-1500r/min stirs 1-2h, after cooling and get final product.
A kind of wood pulp cellulose the most according to claim 1 strengthens the preparation method of water-soluble core, it is characterised in that comprise the following steps:
(1) weigh raw material by weight, first by Kaolin and sodium tripolyphosphate co-ground 1-2h, more jointly add batch mixer mixed at high speed 10-15min with waterglass, sodium chloride, then sinter 1-2h in 600-700 DEG C, be ground to 200-300 mesh after cooling, obtain component A；
(2) aluminum isopropylate. is added in the water of 60-80 times of weight, add nano imvite and water solublity lanoline after pH is adjusted to 3-4 and stir 2-4h in 85-95 DEG C, then temperature be adjusted to 40-60 DEG C and add remaining raw material stirring 1-2h, after cooling, obtaining B component；
(3) component A and B component are added mixed at high speed 10-20min after batch mixer, then it is loaded in mould compacting, treats its curing and demolding, at 200-250 DEG C, dry 12-24h, finally according to needs, its profile is carried out machining, obtain wood pulp cellulose and strengthen water-soluble core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610090162.8A CN105964936A (en) | 2016-02-18 | 2016-02-18 | Wood pulp fiber-enhanced water-soluble mold core and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610090162.8A CN105964936A (en) | 2016-02-18 | 2016-02-18 | Wood pulp fiber-enhanced water-soluble mold core and preparation method thereof |
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| CN105964936A true CN105964936A (en) | 2016-09-28 |
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| CN201610090162.8A Pending CN105964936A (en) | 2016-02-18 | 2016-02-18 | Wood pulp fiber-enhanced water-soluble mold core and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109550904A (en) * | 2019-01-03 | 2019-04-02 | 安徽应流久源核能新材料科技有限公司 | It is a kind of using powder as Water-soluble ceramic core of raw material and preparation method thereof |
| CN114046003A (en) * | 2021-12-03 | 2022-02-15 | 广东博竣建设工程有限公司 | Method for reinforcing steel strand mesh polymer mortar of wall |
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| CN102093040A (en) * | 2010-12-07 | 2011-06-15 | 山东理工大学 | Composite ceramic mold core for water pump impeller and preparation method thereof |
| CN102489670A (en) * | 2011-12-13 | 2012-06-13 | 丹阳市精密合金厂有限公司 | Ceramic core for molding of support plate and preparation method thereof |
| CN102786295A (en) * | 2012-08-06 | 2012-11-21 | 江苏大学 | Water-soluble ceramic core and preparation method thereof |
| CN103056302A (en) * | 2011-12-13 | 2013-04-24 | 丹阳市精密合金厂有限公司 | Ceramic core for molding aeroengine case type annular casting hollow support plate |
| CN104084520A (en) * | 2014-06-25 | 2014-10-08 | 芜湖国鼎机械制造有限公司 | Casting sand, mold core and preparation method thereof |
| CN104428082A (en) * | 2012-04-10 | 2015-03-18 | 埃米尔·米勒有限责任公司 | Salt-based cores, method for production thereof and use thereof |
| CN104493081A (en) * | 2014-12-09 | 2015-04-08 | 南京航空航天大学 | Wax injection mold for investment casting of hollow turbine blades and method for rapidly manufacturing wax injection mold |
-
2016
- 2016-02-18 CN CN201610090162.8A patent/CN105964936A/en active Pending
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| CN102093040A (en) * | 2010-12-07 | 2011-06-15 | 山东理工大学 | Composite ceramic mold core for water pump impeller and preparation method thereof |
| CN102489670A (en) * | 2011-12-13 | 2012-06-13 | 丹阳市精密合金厂有限公司 | Ceramic core for molding of support plate and preparation method thereof |
| CN103056302A (en) * | 2011-12-13 | 2013-04-24 | 丹阳市精密合金厂有限公司 | Ceramic core for molding aeroengine case type annular casting hollow support plate |
| CN104428082A (en) * | 2012-04-10 | 2015-03-18 | 埃米尔·米勒有限责任公司 | Salt-based cores, method for production thereof and use thereof |
| CN102786295A (en) * | 2012-08-06 | 2012-11-21 | 江苏大学 | Water-soluble ceramic core and preparation method thereof |
| CN104084520A (en) * | 2014-06-25 | 2014-10-08 | 芜湖国鼎机械制造有限公司 | Casting sand, mold core and preparation method thereof |
| CN104493081A (en) * | 2014-12-09 | 2015-04-08 | 南京航空航天大学 | Wax injection mold for investment casting of hollow turbine blades and method for rapidly manufacturing wax injection mold |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109550904A (en) * | 2019-01-03 | 2019-04-02 | 安徽应流久源核能新材料科技有限公司 | It is a kind of using powder as Water-soluble ceramic core of raw material and preparation method thereof |
| CN114046003A (en) * | 2021-12-03 | 2022-02-15 | 广东博竣建设工程有限公司 | Method for reinforcing steel strand mesh polymer mortar of wall |
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Application publication date: 20160928 |
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