CN101486068B - Alcohol group zircon powder coating for large casting - Google Patents

Alcohol group zircon powder coating for large casting Download PDF

Info

Publication number
CN101486068B
CN101486068B CN200910046096.4A CN200910046096A CN101486068B CN 101486068 B CN101486068 B CN 101486068B CN 200910046096 A CN200910046096 A CN 200910046096A CN 101486068 B CN101486068 B CN 101486068B
Authority
CN
China
Prior art keywords
coating
casting
resin
alcohol
zircon powder
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.)
Active
Application number
CN200910046096.4A
Other languages
Chinese (zh)
Other versions
CN101486068A (en
Inventor
周联山
施风华
卜伟
龚圣峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xin Technology (Shanghai) Material Technology Co., Ltd.
Original Assignee
Shanghai Institute Of Machine Building Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Institute Of Machine Building Technology Co Ltd filed Critical Shanghai Institute Of Machine Building Technology Co Ltd
Priority to CN200910046096.4A priority Critical patent/CN101486068B/en
Publication of CN101486068A publication Critical patent/CN101486068A/en
Application granted granted Critical
Publication of CN101486068B publication Critical patent/CN101486068B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses a zircon powder alcohol based coating for a large casting, wherein refractory aggregate adopts zircon powder which contains more than 65 percent of ZrO2; a coating binding agent is formed by matching oxidized rosin resin and thermoplastic phenol-formaldehyde resin; and the oxidized rosin resin accounts for 0.3 to 0.6 weight percent of the coating, and the thermoplastic phenol-formaldehyde resin accounts for 0.5 to 0.8 weight percent of the coating. The invention selects two different types of resin as the binding agent of the coating, and not only can form a compact membrane on the surface of a sand mold to obstruct the influence of moisture in molding sand on a coating layer, but also can make a binding system maintain effectiveness and stable exertion of the performance in a high-temperature gradient and resist continuous high temperature erosion of molten steel so as to guarantee the surface quality of the casting. The zircon powder alcohol based coating for the large casting is a coating which is obtained through complex tests and summa and suitable for molding technology of water glass sand of the large steel casting.

Description

For the Zircon powder alcohol group dope of heavy castings
Technical field
The present invention relates to a kind of foundry facing, particularly relate to a kind of Zircon powder alcohol group dope for sodium silicate molding technique.
Background technology
The effect of casting sand type coating prevents metal from infiltrating sand, and absorb catabolite, and allow gas by coating, keep the complete of die cavity, reduce the effects such as surface roughness, make the pore of foundry goods, metal penetration, cold shut, the defects such as carbon distribution decline.The feature of water virus is when ambient humidity is greater than 80RH, especially between the bai-u rainy period of the south of the River, molding sand surface is easy to moisture absorption, this will affect coating being coated with and strength of coating on molding sand surface, and large-scale steel-casting (more than 10 tons) requires that coating has very high refractoriness and strength of coating, both interactions often affect steel casting surface quality.This key technology is the bottleneck affecting large-scale steel-casting surface quality always.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of Zircon powder alcohol group dope being applicable to large-scale steel-casting sodium silicate molding technique, the adhesive system of reasonable selection coating, when the original refractoriness of maintenance coating, improves the strength of coating of coating.
As follows for solving the problems of the technologies described above the technical solution adopted in the present invention:
For a Zircon powder alcohol group dope for heavy castings, refractory aggregate adopts containing ZrO 2more than 65% zirconium English powder, paint adhesion agent adopts vinsol resin and novolac resin to match, and its part by weight accounting for coating is respectively:
Vinsol resin 0.3-0.6%, novolac resin 0.5-0.8%;
In this coating, the weight ratio of component is:
Zirconium English powder 70-75%, vinsol resin 0.3-0.6%, novolac resin 0.5-0.8%, suspending agent 1.4-1.6%, auxiliary agent 0.9-1.1%, all the other are isopropyl alcohol.
Described abietic resin preferably selects A130 abietic resin.
Described zirconium English Powder Particle Size is 300 ~ 325 orders.
Described suspending agent is organobentonite and/or lithium bentonite.
Coating of the present invention is relative to the foundry method features of prior art for the easy surperficial moisture absorption of water-glass sand, select two kinds of dissimilar resins as the binding agent of coating, vinsol resin can adapt to the higher sodium silicate molding technique of surface moisture content, fine and close film is formed, to intercept the impact of the moisture in molding sand on dope layer at mould surface; Novolac resin has very strong high temperature bond function, aggregate in coating can be bonded together closely, ensure coating being coated with and strength of coating on molding sand surface, bonding system keeps effectively playing with stable of its performance on high-temperature gradient, resist washing away of the continuous high temperature of molten steel, thus ensure surface quality of continuous castings.What the present invention was through numerous and diverse test and summed up that obtain a kind of be applicable to large-scale steel-casting sodium silicate molding technique has high refractoriness, high bond strength, excellent protection against the tide and be coated with the coating of performance.
Accompanying drawing explanation
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated, wherein:
Fig. 1 is the preparation section schematic diagram of Zircon powder alcohol group dope of the present invention.
Detailed description of the invention
Fig. 1 shows the preparation process of the Zircon powder alcohol group dope for heavy castings of the present invention.
1. the first each coating composition of the weight proportion of according to the form below,
Embodiment Zirconium English powder % Vinsol resin % Novolac resin % Suspending agent % Auxiliary agent % Isopropyl alcohol
??1 ??70 ??0.3 ??0.8 ??1.5 ??1.0 ??26.4
??2 ??72 ??0.5 ??0.5 ??1.4 ??1.1 ??24.5
??3 ??73 ??0.4 ??0.6 ??1.5 ??1.0 ??23.5
??4 ??75 ??0.6 ??0.8 ??1.6 ??0.9 ??21.1
2. Weighting and Controlling
Abietic resin selects A130 abietic resin,
The zirconium English powder selected is containing ZrO 2>=65%, granularity is 300 ~ 325 orders.
Suspending agent is organobentonite (also can select lithium bentonite, or the mixing of organobentonite and lithium bentonite).
3. mix and blend
Note time reinforced first suspending agent, binding agent and auxiliary agent and solvent being sequentially added into, speed of agitator and mixing time need be controlled.Zirconium English powder is added again gradually after mixing; Solvent (isopropyl alcohol) and suspending agent are adjustable item, suitably adjust as required;
Single batch of output is below 1 ton, and speed of agitator controls: 750 ~ 1350rpm, the total mixing time after reinforced must not lower than 30min;
4. then carry out the performance test of coating, stirring can be adjusted again as undesirable;
5. finished product warehouse-in.
By Zircon powder alcohol group dope obtained in above-described embodiment, be applied to large-scale steel-casting (more than 10 tons) coating and show very high refractoriness and the combination property of strength of coating, the steel casting surface quality of acquisition is greatly improved.

Claims (4)

1., for a Zircon powder alcohol group dope for heavy castings, refractory aggregate adopts containing ZrO 2more than 65% zirconium English powder, is characterized in that: paint adhesion agent adopts vinsol resin and novolac resin to match, and its part by weight accounting for coating is respectively:
Vinsol resin 0.3-0.6%, novolac resin 0.5-0.8%;
In this coating, the weight ratio of component is:
Zirconium English powder 70-75%, vinsol resin 0.3-0.6%, novolac resin 0.5-0.8%,
Suspending agent 1.4-1.6%, auxiliary agent 0.9-1.1%, all the other are isopropyl alcohol.
2., according to the Zircon powder alcohol group dope as claimed in claim 1 for heavy castings, it is characterized in that: described abietic resin selects A130 abietic resin.
3., according to the Zircon powder alcohol group dope as claimed in claim 1 or 2 for heavy castings, described zirconium English Powder Particle Size is 300 ~ 325 orders.
4., according to the Zircon powder alcohol group dope as claimed in claim 1 or 2 for heavy castings, described suspending agent is organobentonite and/or lithium bentonite.
CN200910046096.4A 2009-02-12 2009-02-12 Alcohol group zircon powder coating for large casting Active CN101486068B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910046096.4A CN101486068B (en) 2009-02-12 2009-02-12 Alcohol group zircon powder coating for large casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910046096.4A CN101486068B (en) 2009-02-12 2009-02-12 Alcohol group zircon powder coating for large casting

Publications (2)

Publication Number Publication Date
CN101486068A CN101486068A (en) 2009-07-22
CN101486068B true CN101486068B (en) 2014-12-17

Family

ID=40889215

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200910046096.4A Active CN101486068B (en) 2009-02-12 2009-02-12 Alcohol group zircon powder coating for large casting

Country Status (1)

Country Link
CN (1) CN101486068B (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101817058A (en) * 2010-03-30 2010-09-01 深圳市景鼎现代科技有限公司 Shield type coating composition and preparation process of coating thereof
CN102000762B (en) * 2010-11-08 2015-11-25 上海市机械制造工艺研究所有限公司 A kind of composite dope layer process for large-scale steel-casting waterglass sand mold
CN101992263B (en) * 2010-11-08 2015-07-22 上海市机械制造工艺研究所有限公司 Process for large high-alloy steel resin bonded sand mould composite coating
CN101982253A (en) * 2010-11-09 2011-03-02 广东省韶铸集团有限公司 Method for improving surface finish of casting
CN102139342B (en) * 2011-03-07 2013-11-20 衡阳中钢衡重铸锻有限公司 High-permeability sand-burning-preventing paint for casting and preparation method thereof
CN102218502A (en) * 2011-07-15 2011-10-19 浙江宸宇重工有限公司 Isopropanol-based coating for lost foam casting steel and production method thereof
CN102240776A (en) * 2011-07-15 2011-11-16 浙江宸宇重工有限公司 Coating for lost mould cast steel and manufacture method thereof
CN102371335B (en) * 2011-10-11 2016-01-20 华文蔚 A kind of preparation method of casting alcohol-based coating
CN102489665A (en) * 2011-12-27 2012-06-13 本溪新兴盛铸造有限公司 Casting surface coating
CN103008528A (en) * 2012-11-09 2013-04-03 兰州兰石铸造有限责任公司 Simple alcohol-based casting coating and preparation method thereof
CN102974753B (en) * 2012-12-06 2014-12-17 上海应用技术学院 Non-occupying coating and using method thereof
CN103769530B (en) * 2013-08-26 2016-04-06 上海纵化实业有限公司 Cast steel alcohol-base paint and preparation and application thereof
CN104014740B (en) * 2014-06-11 2016-08-31 武汉纺织大学 A kind of method improving microwave heating waterglass sand mold resistance to water soak
CN104148578B (en) * 2014-08-06 2016-08-24 沈阳化工大学 The preparation method of the calcareous alcohol-base paint of casting magnesium
CN104439049B (en) * 2014-12-31 2016-09-14 天津宁康科技有限公司 Alcohol radical ceramic casting coating
CN105363992A (en) * 2015-10-21 2016-03-02 和县科嘉阀门铸造有限公司 Valve lost foam casting coating
CN108286024A (en) * 2017-12-21 2018-07-17 安徽中电气有限公司 A kind of processing method of high-toughness wear-resistant sleeve
CN108273966A (en) * 2017-12-21 2018-07-13 安徽中电气有限公司 A kind of processing technology of rich chromium cast iron pipe
CN108277426A (en) * 2017-12-21 2018-07-13 安徽中电气有限公司 A kind of slim rich chromium cast iron pipe
CN108941447A (en) * 2018-08-15 2018-12-07 成都三强轧辊股份有限公司 A kind of cold mould spraying preparation method of coating
CN110315025A (en) * 2019-07-22 2019-10-11 宜兴市国昌轧辊有限公司 A kind of self-control cast steel roll mould wash and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4995535A (en) * 1989-04-21 1991-02-26 Toshiba Ceramics Co., Ltd. Nozzle device for discharging molten metal
CN1966180A (en) * 2006-11-24 2007-05-23 费长正 Alcohol zircon flour coating for heavy castings and its production method
CN101222992A (en) * 2005-07-15 2008-07-16 株式会社小松制作所 Resin-coated sand for use in cast steel, casting mold made of the sand, steel casting casted using the casting mold

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4995535A (en) * 1989-04-21 1991-02-26 Toshiba Ceramics Co., Ltd. Nozzle device for discharging molten metal
CN101222992A (en) * 2005-07-15 2008-07-16 株式会社小松制作所 Resin-coated sand for use in cast steel, casting mold made of the sand, steel casting casted using the casting mold
CN1966180A (en) * 2006-11-24 2007-05-23 费长正 Alcohol zircon flour coating for heavy castings and its production method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
大型铸钢件用醇基剥离型涂料;程厚义等;《铸造》;19961231(第4期);34-36 *

Also Published As

Publication number Publication date
CN101486068A (en) 2009-07-22

Similar Documents

Publication Publication Date Title
CN104139154B (en) A kind of phenolic resins self-hardening sand and preparation method thereof
EP2239242B1 (en) A self repairing concrete containing microcapsules of urea formaldehyde resin and producing method thereof
CN105195670B (en) A kind of production method for the water base Flow Coating for preventing vein defect
CN101602087B (en) Lost foam aluminum casting coating prepared by flyash and preparation method thereof
CN101491823B (en) Centrifugal casting roller coatings and preparation method thereof
CN104044277B (en) The vacuum assisted resin transfer molding integral forming technique of composite fuel tank
CN102407277B (en) Method for preparing coating for metal molds for centrifugal pipe casting
CN103641487B (en) Preparation method and application of ceramic preform
CN100450664C (en) Production of large and super-critical steel-casting by using alkali phenolic aldehyde resin art
CN105436411B (en) A kind of high ventilative lost-foam casting method
CN102407275B (en) Expendable pattern casting (EPC) molding shell paint for casting steel and preparation method thereof
Jones et al. Advances in shell moulding for investment casting
CN102836950B (en) Lost foam coating and preparation method thereof
CN102366812B (en) A kind of preparation method of sodium silicate sand used for casting
AU2017214133B2 (en) Curing agent for water glass molding and manufacturing method and use thereof
CN101767184B (en) Lost foam casting cast iron coating for preventing carbon defects and preparation method thereof
CN101934342B (en) Molding sand for casting pressure plates
CN102102720B (en) Ceramic/metallic double continuous phase composite material brake pad and preparation method thereof
CN101607297B (en) Preparation method of modified phenolic resin binder for casting
CN100352576C (en) Molding sand and preparation method
CN107937799B (en) A kind of burr cylinder jacket of centrifugal casting and preparation method thereof
CN100343404C (en) Sulfuric acid corrosion resistant alloy nodular cast iron materials
CN103100658A (en) Method for preparing solid-mold casting coating material for cast iron
CN106541129A (en) A kind of preparation method of particles reiforced metal-base composition
CN101134237A (en) Reinforcing phase metallic gradient composite material manufacturing process and equipment thereof

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20181220

Address after: East Workshop No. 2655 Fujin Road, Baoshan District, Shanghai, 2010

Patentee after: Xin Technology (Shanghai) Material Technology Co., Ltd.

Address before: No. 960 Zhongxing Road, Zhabei District, Shanghai 200070

Patentee before: Shanghai Institute of Machine Building Technology Co., Ltd.

TR01 Transfer of patent right