CN1013745B - Heat-insulating patching for steel casting and manufacturing process - Google Patents
Heat-insulating patching for steel casting and manufacturing processInfo
- Publication number
- CN1013745B CN1013745B CN 88105138 CN88105138A CN1013745B CN 1013745 B CN1013745 B CN 1013745B CN 88105138 CN88105138 CN 88105138 CN 88105138 A CN88105138 A CN 88105138A CN 1013745 B CN1013745 B CN 1013745B
- Authority
- CN
- China
- Prior art keywords
- subsidy
- quartz sand
- inorfil
- organic fiber
- present
- 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.)
- Expired
Links
- 238000005266 casting Methods 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 229910000831 Steel Inorganic materials 0.000 title abstract description 6
- 239000010959 steel Substances 0.000 title abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 36
- 238000009413 insulation Methods 0.000 claims abstract description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000006004 Quartz sand Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 239000000835 fiber Substances 0.000 claims description 9
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-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
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims description 3
- 229960004011 methenamine Drugs 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims 1
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 239000012774 insulation material Substances 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 230000003031 feeding effect Effects 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract 2
- 229920005989 resin Polymers 0.000 abstract 2
- 239000012784 inorganic fiber Substances 0.000 abstract 1
- 239000004576 sand Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910001208 Crucible steel Inorganic materials 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000009749 continuous casting Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000010893 paper waste Substances 0.000 description 2
- 229910001562 pearlite Inorganic materials 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Images
Landscapes
- Mold Materials And Core Materials (AREA)
Abstract
本发明铸钢件保温补贴材料是由石英砂、有机和无机纤维、树脂固化剂及一定比例的水组成的，其制做工艺为：将有机纤维加水制浆，再将无机纤维、石英砂加入搅拌，过滤后将混合料烘干，再在混砂碾上加水、树脂、固化剂碾制成保温材料，用制芯方法成型，再将保温补贴制品经160℃～180℃烘干以提高强度，即制成本发明铸钢件保温补贴，可造成铸钢件顺序凝固，确保补缩效果、节约能源、提高铸钢件工艺出品率。The thermal insulation subsidy material for steel castings of the present invention is composed of quartz sand, organic and inorganic fibers, resin curing agent and a certain proportion of water. Stir, filter, and dry the mixture, then add water, resin, and curing agent to the sand mixing mill to make insulation materials, shape them with core-making methods, and then dry the insulation subsidy products at 160°C to 180°C to increase the strength , that is, the thermal insulation subsidy for the steel castings of the present invention can cause the steel castings to solidify sequentially, ensure the feeding effect, save energy, and improve the yield rate of the steel castings.
Description
Steel-casting insulation subsidy of the present invention and manufacturing process belong to cast steel technology material and manufacturing process thereof.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 technical 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, the subsidy that promotes directional solidification in casting mold is by the granular and fibrous refractory of fluoride not, and aluminium oxidant and binding agent are made.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, and its cost height is difficult for promoting.
Purpose of the present invention has improved product yield with the subsidy of excellent insulating material substituted metal, reduction cast steel industry raw material and energy resource consumption, shortens the steel-casting machining period.
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): add 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, again inorfil quartz sand is added and stir, after the 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 is stable, does 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 is basic material with 7% waste paper, 10% alumina silicate fibre, 83% quartz sand.
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.
Goods unit weight thermal conductivity factor (1000 ℃ time) high-temperature body shrinks the drenched manner green compression strength of refractoriness
（g/cm
3） （KCL/m·h·℃） （1400℃） （℃） （MPa）
0.9～1.05 0.16 ＜5 1670～ 10～15 0.05～
1690 0.07
Rupture strength dry-pressing intensity moisture content of finished products SiO
2AL
2O
3CaO Fe
2O
3MgO TiO K
2O Na
2O
＞1 ＞2 ＜1 84.32 5.64 0.05 0.32 0.22 0.16 0.25 0.26
Subsidy has or not the casting of subsidy position
Numbering subsidy material is coated with the bloated surface quality of continuous castings conclusion of materials and parts maximum outward
Amount
The pearlite insulation surface is very irregular, has cenotype to produce and can not do benefit
The A material does not have 20～22 gives birth to, and the subsidy material surface has a 5mm left side to paste material
Right sinter layer.
The close rising head root of pearlite insulation is irregularity still,
The B material has 17～18 subsidy materials to have the 3mm sintering the same approximately
Layer.
Cast(ing) surface is irregular, and the surface has not
The C cenosphere is protected nothing 15～20 continuous islands and depression is evenly equipped with the same
Adiabator 3～5mm sinter layer.
It is 15～20 the same that the D cenosphere is possessed, and material has 3mm left and right sides sintering the same
The adiabator layer.
Aluminium system heating material cast(ing) surface is bright and clean, is better than above-mentioned under the subsidy position
The no 5mm end of E material all has the 5mm amount of rising outward.Material can be done
The subsidy material
It is bright and clean that the present invention is incubated cast(ing) surface, and cast(ing) surface is slightly mended preferably
The no rugosity Ra value of F and G material is generally pasted material at 25～50 μ m
Between reach as high as 125 μ m
Claims (2)
1, a kind of steel-casting insulation subsidy is characterized in that it contains quartz sand 80-85%, organic fiber 5-7%, inorfil 8-12% and phenolic resin adhesive 4-5% (quartz sand, organic fiber, inorfil are 100).
2, a kind of method of making the described insulation subsidy of claim 1, it is characterized in that earlier organic fiber being added water slurrying with beater at normal temperatures, again inorfil, quartz sand are added and stir, with the compound oven dry, on mulling is ground, add phenolic resins again after the filtration.Urotropine firming agent is made the section bar material with the water-powered roller that accounts for material gross weight 45-50%, with core-making method system type, and then pass through 160-180 ℃ temperature oven dry, wherein, the addition of methenamine is that 0.3-0.8%(quartz sand, inorfil, organic fiber are in 100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88105138 CN1013745B (en) | 1988-10-11 | 1988-10-11 | Heat-insulating patching for steel casting and manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88105138 CN1013745B (en) | 1988-10-11 | 1988-10-11 | Heat-insulating patching for steel casting and manufacturing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1041715A CN1041715A (en) | 1990-05-02 |
| CN1013745B true 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-insulating patching for steel casting and manufacturing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1013745B (en) |
Cited By (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 |
Families Citing this family (7)
| 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 |
| JP4002200B2 (en) | 2002-03-13 | 2007-10-31 | 花王株式会社 | Papermaking parts for casting production |
| JP4471629B2 (en) | 2002-11-13 | 2010-06-02 | 花王株式会社 | Manufacturing method of parts for casting production |
| CN100551581C (en) * | 2005-05-20 | 2009-10-21 | 花王株式会社 | Molded body and its manufacturing method |
| US9719211B2 (en) | 2012-12-28 | 2017-08-01 | Kao Corporation | Method of producing structure for producing casting, and structure such as mold |
| CN116237500B (en) * | 2022-05-16 | 2025-12-19 | 安徽应流集团霍山铸造有限公司 | Production and installation method for repairing heating material in sand casting process |
| CN115283621A (en) * | 2022-07-22 | 2022-11-04 | 锦州捷通铁路机械股份有限公司 | A kind of heating subsidy for casting, preparation method and application |
-
1988
- 1988-10-11 CN CN 88105138 patent/CN1013745B/en not_active Expired
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1041715A (en) | 1990-05-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
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 |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: NATIONAL FOUNDRY MACHINERY COMMITTEE SHENYANG FOUNDRY INSTITUTE TO: MACHINERY AND ELECTRONICS INDUSTRY SHENYANG CASTING INSTITUTE |
|
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |