CN1041715A - Steel-casting insulation subsidy and technology - Google Patents
Steel-casting insulation subsidy and technology Download PDFInfo
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- CN1041715A CN1041715A CN 88105138 CN88105138A CN1041715A CN 1041715 A CN1041715 A CN 1041715A CN 88105138 CN88105138 CN 88105138 CN 88105138 A CN88105138 A CN 88105138A CN 1041715 A CN1041715 A CN 1041715A
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Abstract
Steel-casting insulation subsidy material of the present invention is by quartz sand, organic and inorfil, resin curing agent and a certain proportion of water are formed, its manufacture craft is: organic fiber is added water slurrying, again with inorfil, quartz sand adds stirring, after the filtration compound is dried, on grinding, mulling adds water again, resin, curing agent grinds makes insulation material, use the core-making method moulding, to be incubated again the subsidy goods through 160 ℃ of-180 ℃ of oven dry to improve intensity, promptly make steel-casting insulation subsidy of the present invention, can cause the steel-casting consecutive solidification, guarantee the feeding effect, energy savings, improve the cast steel piece craft yield rate.
Description
Steel-casting insulation subsidy of the present invention belongs to cast steel technology material.
In Steel Castings,, cause the steel-casting consecutive solidification to guarantee the feeding effect in order to improve casting process yield.It is that the technology of setting up at corresponding each position is on demand subsidized to realize the good result of feeding that the present invention is incubated subsidy, guarantees casting quality, and the material of subsidy is a core of the present invention.
The background technology of invention is: English, day two countries begin the research with heating or the subsidy of insulation subsidy substituted metal in recent years, but the heating subsidy is difficult to be widely used in production because of the prescription of its complexity, expensive price, and heating wherein becomes branch that foundry goods is polluted.The insulation subsidy of steel-casting requires very strict to insulation material, except that satisfying requirements such as refractoriness and thermal conductivity factor, high temperature normal temperature strength, stable physics and chemical property also to be arranged to guarantee foundry goods inside and surface quality, though the research of insulation subsidy is at home and abroad arranged, does not have the precedent of success to be seen in document.
The present invention provides the excellent insulating material for insulation subsidy technology, have advantages such as thermal conductivity is low, refractoriness is high, volume stability is good and chemical property and stablize, do not pollute foundry goods, this material substituted metal subsidy can be avoided the heavy cleaning and the processing of metal subsidy, realizes that in casting mold the directed consecutive solidification of foundry goods provides condition.
1964 to 1987 international monopolies obtain 76 pieces in relevant document by retrieval, consult the not technology identical of result with the present invention, with the immediate prior art of the present invention be: BP, patent No. GB2063126 promotes the subsidy of directional solidification by granular and fibrous refractory, aluminium oxidant and the binding agent of fluoride are not made in casting mold.The composition of this insulation material is fluoride not, between insulation and heating subsidy, and unit weight 0.3～1。1g/Cm
3, this subsidy is arranged at the position of wishing to produce consecutive solidification on the foundry goods, its cost height, the difficult popularization.
Purpose of the present invention has improved product yield, has shortened the steel-casting machining period with the subsidy of excellent insulating material substituted metal, reduction cast steel industry raw material and energy resource consumption.
Content of the present invention:
1, material weight ratio of the present invention is: quartz sand 80～85%, organic fiber 5～7%, inorfil 8～12%, more than three kinds of compositions account for 100%, add 4～5% heavy phenolic resins of material, 0.3～0.8% methenamine (curing agent) adds the water that accounts for material gross weight 45～50% then.
2, moulding process of the present invention
Under the normal temperature in beater, earlier with organic fiber and water slurrying, after again inorfil quartz sand being added stirring, filtration compound is dried, on mulling is ground, add water, phenolic resins, urotropine firming agent again and grind and make molding material, with core-making method system type, subsidy goods through 160 ℃～180 ℃ oven dry.
The main physical and chemical performance of material of the present invention sees Table 1.
The present invention subsidizes the advantage that material is compared with prior art had: 1. the present invention makes the application of this technology and popularization that prerequisite is provided for insulation subsidy technology provides the excellent insulating material; 2. this insulation material has advantages such as thermal conductivity is low, refractoriness is high, volume stability is good, and chemical property stable, do not pollute foundry goods, can guarantee bright and clean cast(ing) surface.
The present invention subsidizes the influence of material to surface quality of continuous castings, and material at high temperature lower volume stability, chooses several typical materials, has carried out performance comparison.
Comparing result such as table 2.
Heat insulating material fire resistance of the present invention and high temperature lower volume stability excellence.
3, embodiment
Waste paper with 7%, 10% alumina silicate fibre, 83% quartz sand are basic material.
At normal temperatures, to account for basic material earlier and heavily be 7% waste paper throws in the beater, add entry and make form slurry, the slurry of making is inserted in the mixer, add respectively simultaneously that to account for basic material ratio be that 10% aluminosilicate refractory fiber and 83% the common quartz sand of 100～200 orders fully stir, refractory fibre is carefully beaten and is discharging after the graininess, drainage in the slurry to be mixed, and the drainage material is made the subsidy material in 100 ℃～120 ℃ drying and dewaterings.
Above-mentioned subsidy material is dropped in the kolleroang, adding accounts for material and weighs 5% dried the mixing 2～3 minutes of 8-1 type phenolic resins, add 0.3～0.8% the methenamine aqueous solution more respectively and account for total material and weigh 47% water, wet mixing went out to grind in 10～15 minutes, it is erose as quill shaft casting parts thermal insulation subsidy goods to have produced camber or other with common core-making method, 170 ℃ of oven dry down, intensity rises with these goods, and kiln discharge is stand-by.
When preparation quill shaft core, the heat insulating products of three uniform arcs is put into core, coremaking is lowered in the type with core.
Fig. 1 is the quill shaft casting structure schematic diagram that adopts insulation subsidy technology.
Fig. 2 is the cutaway view of Fig. 1 along the A-A line.
Table 1
| Goods unit weight (g/cm3) | Thermal conductivity factor (1000 ℃ time) (KCL/m.h. ℃) | High-temperature body shrinks (1400 ℃) (%) | Refractoriness (℃) | The temperature air permeability | Temperature and pressure intensity (MPa) |
| 0.9～1.05 | 0.16 | ＜5 | 1670～ 1690 | 10～15 | 0.05～ 0.07 |
| Rupture strength (MPa) | Dry-pressing intensity (MPa) | Moisture content of finished products (%) | SiO 2 | AL 2O 3 | CaO | Fe 2O 3 | MgO | TiO | K 2O | Na 2O |
| ＞1 | ＞2 | ＜1 | 84.32 | 5.64 | 0.05 | 0.32 | 0.22 | 0.16 | 0.25 | 0.26 |
Claims (2)
1, a kind of steel-casting insulation subsidy, it is characterized in that: material therefor is by weight percentage: quartz sand 80～85%, organic fiber 5～7%, inorfil 8～12%, more than three kinds of compositions account for 100%, add the methenamine (curing agent) of 4～5% heavy phenolic resins 0.3～0.8 of material, add the water that accounts for material gross weight 45～50% then.
2, insulation subsidy as claimed in claim 1, it is characterized in that: moulding process is earlier organic fiber to be added water slurrying with beater under the normal temperature, after again inorfil, quartz sand being added stirring, filtration compound is dried, adding water, phenolic resins, urotropine firming agent again on mulling is ground grinds and makes insulation material, with core-making method system type, will subsidize goods again through 160 ℃～180 ℃ oven dry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88105138 CN1013745B (en) | 1988-10-11 | 1988-10-11 | Heat-retaining repair for cast steel parts and technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88105138 CN1013745B (en) | 1988-10-11 | 1988-10-11 | Heat-retaining repair for cast steel parts and technology thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1041715A true CN1041715A (en) | 1990-05-02 |
| CN1013745B CN1013745B (en) | 1991-09-04 |
Family
ID=4833366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88105138 Expired CN1013745B (en) | 1988-10-11 | 1988-10-11 | Heat-retaining repair for cast steel parts and technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1013745B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061912C (en) * | 1997-03-27 | 2001-02-14 | 河北省正定县建筑保温材料厂 | Method for making thermal-insulating riser cover used in aluminium alloy casting |
| CN100363127C (en) * | 2002-03-13 | 2008-01-23 | 花王株式会社 | Part for cast production fabricated by wet type paper-making method |
| US7503999B2 (en) | 2002-11-13 | 2009-03-17 | Kao Corporation | Member for producing castings |
| CN104884186A (en) * | 2012-12-28 | 2015-09-02 | 花王株式会社 | Method for producing structure for casting and structure such as mold |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1049851C (en) * | 1996-06-28 | 2000-03-01 | 上海梅山(集团)有限公司 | Steel casting heat-insulating patching material and forming process thereof |
-
1988
- 1988-10-11 CN CN 88105138 patent/CN1013745B/en not_active Expired
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061912C (en) * | 1997-03-27 | 2001-02-14 | 河北省正定县建筑保温材料厂 | Method for making thermal-insulating riser cover used in aluminium alloy casting |
| CN100363127C (en) * | 2002-03-13 | 2008-01-23 | 花王株式会社 | Part for cast production fabricated by wet type paper-making method |
| US7815774B2 (en) | 2002-03-13 | 2010-10-19 | Kao Corporation | Elements made by paper-making technique for the production of molded articles and production method thereof |
| US7503999B2 (en) | 2002-11-13 | 2009-03-17 | Kao Corporation | Member for producing castings |
| CN104884186A (en) * | 2012-12-28 | 2015-09-02 | 花王株式会社 | Method for producing structure for casting and structure such as mold |
| US9719211B2 (en) | 2012-12-28 | 2017-08-01 | Kao Corporation | Method of producing structure for producing casting, and structure such as mold |
| TWI608880B (en) * | 2012-12-28 | 2017-12-21 | 花王股份有限公司 | Method for producing structure for casting production, structure of casting mold, and the like |
| CN107716843A (en) * | 2012-12-28 | 2018-02-23 | 花王株式会社 | The structure such as the manufacture method of structure for casting production and casting mold |
| CN107716843B (en) * | 2012-12-28 | 2019-08-23 | 花王株式会社 | The structural bodies such as the manufacturing method of structure for casting production and casting mold |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1013745B (en) | 1991-09-04 |
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Address after: No. 26 AI Nan Street, Tiexi District, Shenyang Applicant after: Shenyang Casting Inst., Ministry of Machine-Building & Electronics Industry Address before: No. 1 LI 4, 1 section, Yunfeng street, Tiexi District, Shenyang Applicant before: State machinery committee, Shenyang Research Institute of Foundry |
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Free format text: CORRECT: APPLICANT; FROM: NATIONAL FOUNDRY MACHINERY COMMITTEE SHENYANG FOUNDRY INSTITUTE TO: MACHINERY AND ELECTRONICS INDUSTRY SHENYANG CASTING INSTITUTE |
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