CN104341163A - Jointing material for ladle nozzle brick cups - Google Patents
Jointing material for ladle nozzle brick cups Download PDFInfo
- Publication number
- CN104341163A CN104341163A CN201410561683.8A CN201410561683A CN104341163A CN 104341163 A CN104341163 A CN 104341163A CN 201410561683 A CN201410561683 A CN 201410561683A CN 104341163 A CN104341163 A CN 104341163A
- Authority
- CN
- China
- Prior art keywords
- granularity
- joint filler
- weight ratio
- powder
- graphite
- 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.)
- Granted
Links
Landscapes
- Ceramic Products (AREA)
Abstract
The invention discloses a jointing material for ladle nozzle brick cups, which is prepared from the following components in parts by weight: 1 part of adhesive, 0.4-0.9 part of curing agent, 1.8-2.4 part of powder, 0.2-0.6 part of modifier and 1.8-2.4 parts of diluter. The powder comprises the following components in parts by weight: 1 part of magnesite, 0.5-1 part of graphite, 0.3-0.6 part of silicon carbide and 0.3-0.6 part of magnesia alumina spinel. The product obtained by sintering the jointing material has the advantages of high volume density, low porosity and low possibility of bleed-out and seepage, and has excellent binding property, erosion resistance and mechanical properties at high temperature.
Description
Technical field
The present invention relates to high-temperature material and metallurgical technology field, refer more particularly to a kind of ladle pocket block joint filler.
Background technology
Efficiently, safety, intensive manufacture be the direction of metallurgical industry development, is also the important technical improving high temperature material enterprise's existence and development and the market competitiveness.Pocket block is a more special high temperature material in ladle furnace total system, and be the necessary channel of molten steel conversion in ladle metallurgy, directly contact with molten steel when tapping, temperature reaches 1600 degrees Celsius.The pocket block of current use is divided into monoblock type and split type two classes.Monoblock type brick cup is due to its good integrity and being widely adopted in use.But for large and medium-sized ladle, its Integral nozzle brick cup is bulky, and installation can consume a large amount of man power and materials, and need adopt huge special-shaped mould when Integral nozzle brick cup makes, the cost of manufacture of large mould is high, and this seriously constrains the development of enterprise.Adopt split type pocket block then greatly can save the cost of manufacture of large mould, simple installation.
Split type pocket block is generally divided into upper and lower two brick cups, and the assembling gap process between upper and lower brick cup is very important.Conventional joint filler clay makes bonding agent, add admixture, add certain water and be modulated into the use of paste slurry, but clay can produce more pore under high and low temperature alternative effect repeatedly, thus cause bleed-out and the generation of oozing steel phenomenon, cause work-ing life shorter, have a strong impact on production safety.In order to improve security and the mechanical property of use, add corundum, corundum and chromoxide green in recent years gradually as main preparation joint filler, but also bring pollution of chromium while improve joint filler high temperature resistance, corrosion-resistant property to a certain extent, havoc is caused to environment.Inorganic water is all contained in the bonding agent of above-mentioned two kinds of common joint fillers, after high temperature burns, moisture evaporation or high temperature generate a small amount of liquid phase and produce contraction, make joint filler bonding site produce increased number of stomata, thus be easier to split type brick cup cracking is separated, decrease the work-ing life of brick cup.Chinese patent CN 102875176 B discloses a kind of silicon carbide-composite carbon brick refractory mortar and preparation method, adopt furane resin and furfuryl alcohol mixing as organic bond in literary composition, effectively reduce the disadvantageous effect remaining lower increased number of stomata after bonding agent fugitive constituent is got rid of, but this kind of refractory mortar its cohesiveness, anti-erosion performance of flushing, physical strength when high temperature more than 1600 DEG C all reduce, and be not suitable for hot environment when making steel.
Summary of the invention
In order to solve prior art Problems existing, the invention provides a kind of ladle pocket block joint filler.Small product size density after this joint filler sintering is high, and void content is low, and decrease bleed-out and the generation of oozing steel phenomenon, at high temperature its cohesiveness, anti-erosion erosion and mechanical property are excellent simultaneously.
The present invention is by the following technical solutions:
A kind of ladle pocket block joint filler, it is made up of binding agent, solidifying agent, powder, properties-correcting agent and the thinner weight ratio according to 1:0.4-0.9:1.8-2.4:0.2-0.6:1.8-2.4; Magnesia in described powder: graphite: silicon carbide: the weight ratio of magnesium-aluminium spinel is 1:0.5-1:0.3-0.6:0.3-0.6.
Preferred as one of the present invention, described binding agent, solidifying agent, powder, properties-correcting agent and thinner are prepared according to the weight ratio of 1:0.6:2:0.4:1.9.
Described binding agent is resol and epoxy resin is that 1:1.2-1.5 is mixed with weight ratio; Described solidifying agent is urotropine; Described properties-correcting agent is 3-aminopropyl trimethoxysilane; Described thinner is purity >=95% industrial spirit.
Described magnesia is the electrosmelted magnesite clinker of 97%, and granularity is 150-250 order; Described graphite is crystalline flake graphite, and granularity is 80-100 order; The granularity of described silicon carbide is 1-3 μm; The granularity of described magnesium-aluminium spinel is≤1 μm.
Described resol is dimethylbenzene modified phenolic resins, degree of mobilization 40-80mm, free phenol < 2.5%, and granularity is 200 orders.
The using method of ladle pocket block joint filler of the present invention is: be stirred to evenly after each raw material is taken mixing in proportion, in use by needing bonding ladle pocket block position uniform application joint filler, then under 200 DEG C of environment, be baked to drying.
The particle size of refractory raw material has important impact to the volume density of refractory products, void content, physical strength, plasticity-, coking property and stability etc.The powder that the present invention adopts is divided into four kinds of different grain sizes, and density combines, and fine and close refractory materials gone into by the joint filler made after high temperature sintering, effectively reduces void content.The magnesia added in powder, silicon carbide add heat-shock resistance, the resistance to fouling of product, improve refractoriness, intensity and work-ing life; And graphite add the thermal stability and antioxidant property that add product, enhance resin charing formed carbon network; Magnesium-aluminium spinel can improve the workability of joint filler, avoids joint filler effect of contraction stopping property in high temperature, improves the adhesive property after high temperature burning.
Binding agent of the present invention is the used in combination of dimethylbenzene modified phenolic resins and epoxy resin, and after the two mixing, adhesive property strengthens, good fluidity, and wetting property is strong, and high temperature resistance strengthens.
In addition, owing to also introducing properties-correcting agent 3-aminopropyl trimethoxysilane in the present invention, make wherein between each organic polymer material and mineral filler, coupled action to occur, form Si-O-Si network structure, its thermostability is apparently higher than C-C structure, enhance the cohesiveness of product, improve the machinery of product, resistance to erosion, the performance such as anti-aging.
For split type pocket block, use during this product and add joint filler at upper brick cup and lower brick cup connecting portion, then drying is baked under being placed in 200 DEG C of environment, connect into as a whole under two brick cup high temperature, joint filler is filled with the gap between upper and lower brick cup, and there is stronger resistance to elevated temperatures and antiscour aggressiveness, this considerably reduce bleed-out, ooze the generation of steel phenomenon, ensure the security of metallurgical production.
The present invention has the following advantages:
(1) cost is low.Present invention saves the cost of manufacture of integral special-shaped mould, avoiding the waste of a large amount of man power and material when using large-scale integral formula ladle pocket block to install.
(2) product thermotolerance, antiscour aggressiveness are good.The ladle pocket block long service life that the product adopting the present invention to obtain is bonding, decreases the generation producing bleed-out, ooze the security incidents such as steel.
(3) adopt magnesia, graphite, silicon carbide, magnesium-aluminium spinel to be powder, mechanical property and the high thermal resistance of product can be increased, ensure that the practicality of product.
(4) adopt the hybrid junctions mixture of dimethylbenzene modified phenolic resins and epoxy resin, make the product obtained have good mobility, cementability.
(5) properties-correcting agent 3-aminopropyl trimethoxysilane is introduced, make wherein between each organic polymer material and mineral filler, coupled action to occur, form Si-O-Si network structure, its thermostability is apparently higher than C-C structure, enhance the cohesiveness of product, improve the machinery of product, resistance to erosion, the performance such as anti-aging.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is further described in detail.
Embodiment 1
A kind of ladle pocket block joint filler, it be by binding agent, urotropine, powder, 3-aminopropyl trimethoxysilane, 96% industrial spirit make according to the weight ratio of 1:0.4:1.8:0.2:1.8;
Magnesia in described powder: graphite: silicon carbide: the weight ratio of magnesium-aluminium spinel is 1:0.5:0.3:0.3; Wherein magnesia is the electrosmelted magnesite clinker of 97%, and granularity is 150 orders, and graphite is crystalline flake graphite, and granularity is 80 orders; The granularity of silicon carbide is 1 μm; The granularity of magnesium-aluminium spinel is 0.8 μm.
In described binding agent, the weight ratio of resol and epoxy resin is 1:1.2; Wherein resol is dimethylbenzene modified phenolic resins, degree of mobilization 40mm, free phenol 2%, and granularity is 200 orders.
Being stirred to evenly after each raw material is taken mixing in proportion, in use by needing bonding ladle pocket block position uniform application joint filler, then under 200 DEG C of environment, being baked to drying.
Embodiment 2
A kind of ladle pocket block joint filler, it be by binding agent, urotropine, powder, 3-aminopropyl trimethoxysilane, 96% industrial spirit make according to the weight ratio of 1:0.6:2:0.4:1.9;
Magnesia in described powder: graphite: silicon carbide: the weight ratio of magnesium-aluminium spinel is 1:0.7:0.5:0.6; Wherein magnesia is the electrosmelted magnesite clinker of 97%, and granularity is 180 orders, and graphite is crystalline flake graphite, and granularity is 100 orders; The granularity of silicon carbide is 2 μm; The granularity of magnesium-aluminium spinel is 0.5 μm.
In described binding agent, the weight ratio of resol and epoxy resin is 1:1.3; Wherein resol is dimethylbenzene modified phenolic resins, degree of mobilization 60mm, free phenol 1.8%, and granularity is 200 orders.
Being stirred to evenly after each raw material is taken mixing in proportion, in use by needing bonding ladle pocket block position uniform application joint filler, then under 200 DEG C of environment, being baked to drying.
Embodiment 3
A kind of ladle pocket block joint filler, it be by binding agent, urotropine, powder, 3-aminopropyl trimethoxysilane, 96% industrial spirit make according to the weight ratio of 1:0.8:2.2:0.6:2.2;
Magnesia in described powder: graphite: silicon carbide: the weight ratio of magnesium-aluminium spinel is 1:0.9:0.4:0.5; Wherein magnesia is the electrosmelted magnesite clinker of 97%, and granularity is 200 orders, and graphite is crystalline flake graphite, and granularity is 90 orders; The granularity of silicon carbide is 3 μm; The granularity of magnesium-aluminium spinel is 0.2 μm.
In described binding agent, the weight ratio of resol and epoxy resin is 1:1.4; Wherein resol is dimethylbenzene modified phenolic resins, degree of mobilization 80mm, free phenol 2.2%, and granularity is 200 orders.
Being stirred to evenly after each raw material is taken mixing in proportion, in use by needing bonding ladle pocket block position uniform application joint filler, then under 200 DEG C of environment, being baked to drying.
Embodiment 4
A kind of ladle pocket block joint filler, it be by binding agent, urotropine, powder, 3-aminopropyl trimethoxysilane, 96% industrial spirit make according to the weight ratio of 1:0.9:2.4:0.5:2.4;
Magnesia in described powder: graphite: silicon carbide: the weight ratio of magnesium-aluminium spinel is 1:1:0.6:0.4; Wherein magnesia is the electrosmelted magnesite clinker of 97%, and granularity is 250 orders, and graphite is crystalline flake graphite, and granularity is 100 orders; The granularity of silicon carbide is 3 μm; The granularity of magnesium-aluminium spinel is 0.05 μm.
In described binding agent, the weight ratio of resol and epoxy resin is 1:1.5; Wherein resol is dimethylbenzene modified phenolic resins, degree of mobilization 65mm, free phenol 1.5%, and granularity is 200 orders.
Being stirred to evenly after each raw material is taken mixing in proportion, in use by needing bonding ladle pocket block position uniform application joint filler, then under 200 DEG C of environment, being baked to drying.
Joint filler obtained in above-described embodiment 1-4 is used for the bonding of split type ladle pocket block, and tests every physical and chemical index at the brickwork joint place after oven dry, test result is as table 1.
Table 1 embodiment physicochemical property test result
Above-mentioned test-results shows, cohesiveness under its thermostability of joint filler adopting the present invention to obtain, high temperature and mechanical property excellence, this generation that greatly reducing bleed-out and ooze steel phenomenon, thus greatly extend compared with the pocket block work-ing life adopting joint filler of the present invention bonding is bonding with conventional seam material, decrease the process that use procedure is repaired frequently and changed pocket block.
It should be noted last that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (5)
1. a ladle pocket block joint filler, is characterized in that, it is made up of binding agent, solidifying agent, powder, properties-correcting agent and the thinner weight ratio according to 1:0.4-0.9:1.8-2.4:0.2-0.6:1.8-2.4; Magnesia in described powder: graphite: silicon carbide: the weight ratio of magnesium-aluminium spinel is 1:0.5-1:0.3-0.6:0.3-0.6.
2. very according to joint filler according to claim 1, it is characterized in that, it is made up of binding agent, solidifying agent, powder, properties-correcting agent and the thinner weight ratio according to 1:0.6:2:0.4:1.9.
3. joint filler according to claim 1, is characterized in that, described binding agent is resol and epoxy resin is that 1:1.2-1.5 is mixed with weight ratio; Described solidifying agent is urotropine; Described properties-correcting agent is 3-aminopropyl trimethoxysilane; Described thinner is purity >=95% industrial spirit.
4. joint filler according to claim 1, is characterized in that, described magnesia is the electrosmelted magnesite clinker of 97%, and granularity is 150-250 order; Described graphite is crystalline flake graphite, and granularity is 80-100 order; The granularity of described silicon carbide is 1-3 μm; The granularity of described magnesium-aluminium spinel is≤1 μm.
5. joint filler according to claim 1 and 2, is characterized in that, described resol is dimethylbenzene modified phenolic resins, degree of mobilization 40-80mm, free phenol < 2.5%, and granularity is 200 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410561683.8A CN104341163B (en) | 2014-10-21 | 2014-10-21 | A kind of ladle pocket block joint filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410561683.8A CN104341163B (en) | 2014-10-21 | 2014-10-21 | A kind of ladle pocket block joint filler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104341163A true CN104341163A (en) | 2015-02-11 |
| CN104341163B CN104341163B (en) | 2016-01-20 |
Family
ID=52497697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410561683.8A Active CN104341163B (en) | 2014-10-21 | 2014-10-21 | A kind of ladle pocket block joint filler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104341163B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105418092A (en) * | 2015-11-27 | 2016-03-23 | 浙江湖州父子岭耐火集团有限公司 | Compound magnesia-carbon seaming material of converter of 100 t or below |
| CN105541310A (en) * | 2015-12-31 | 2016-05-04 | 河南省西保冶材集团有限公司 | High-performance non-sintered sliding plate joint material and preparation method thereof |
| CN106085320A (en) * | 2016-06-16 | 2016-11-09 | 宜兴新威利成耐火材料有限公司 | Aluminum electrolyzing cell used composite brick bonding agent and preparation method thereof |
| CN112250458A (en) * | 2020-11-25 | 2021-01-22 | 中钢集团洛阳耐火材料研究院有限公司 | Silicon carbide wall-hanging brick joint filling material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1830905A (en) * | 2006-03-16 | 2006-09-13 | 武汉威林炉衬材料有限责任公司 | Seam jointing material for laying magnesia-carbon bricks and alumina-magnesia-carbon bricks |
-
2014
- 2014-10-21 CN CN201410561683.8A patent/CN104341163B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1830905A (en) * | 2006-03-16 | 2006-09-13 | 武汉威林炉衬材料有限责任公司 | Seam jointing material for laying magnesia-carbon bricks and alumina-magnesia-carbon bricks |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105418092A (en) * | 2015-11-27 | 2016-03-23 | 浙江湖州父子岭耐火集团有限公司 | Compound magnesia-carbon seaming material of converter of 100 t or below |
| CN105541310A (en) * | 2015-12-31 | 2016-05-04 | 河南省西保冶材集团有限公司 | High-performance non-sintered sliding plate joint material and preparation method thereof |
| CN105541310B (en) * | 2015-12-31 | 2018-04-13 | 河南省西保冶材集团有限公司 | A kind of high-performance does not sinter slide plate joint filler and preparation method thereof |
| CN106085320A (en) * | 2016-06-16 | 2016-11-09 | 宜兴新威利成耐火材料有限公司 | Aluminum electrolyzing cell used composite brick bonding agent and preparation method thereof |
| CN112250458A (en) * | 2020-11-25 | 2021-01-22 | 中钢集团洛阳耐火材料研究院有限公司 | Silicon carbide wall-hanging brick joint filling material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104341163B (en) | 2016-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102898156B (en) | Ladle slag line magnesia carbon brick and preparation method thereof | |
| CN102633512B (en) | Abandoned molding sand based mullite light heat insulating bricks and preparation method thereof | |
| CN104341163B (en) | A kind of ladle pocket block joint filler | |
| CN107573098B (en) | light castable for sintering ignition furnace | |
| CN106673677B (en) | Environment-friendly anhydrous stemming for submerged arc furnace and preparation method thereof | |
| CN102976785A (en) | Light Al2O3-SiC-C refractory brick and preparation method thereof | |
| CN103204692A (en) | Novel lightweight mullite brick and fabrication method thereof | |
| CN113200755B (en) | Environment-friendly continuous casting tundish dry material and preparation method thereof | |
| CN106517207A (en) | Method for preparing calcium carbide pellets | |
| CN104591755A (en) | Medium-low-temperature intermediate wear-resisting ceramic coating material | |
| CN103396133B (en) | Phenolic resin composition for stemming, preparation method of composition and stemming | |
| CN105110674A (en) | Bonding agent, stemming including bonding agent and preparation method of stemming | |
| CN102875176B (en) | Refractory mortar for silicon carbide-carbon composite brick and preparation method | |
| CN104817331A (en) | Pressed-in sealant for blast furnace and preparation method thereof | |
| CN113354426A (en) | Baking-free magnesia-calcium-carbon brick and preparation method thereof | |
| CN103896606B (en) | A kind of blast furnace ceramic cup refractory materials | |
| CN107117944B (en) | Tundish composite magnesium-calcium coating for clean steel and preparation method thereof | |
| CN102503458B (en) | Silicon carbide anti-skinning anti-plugging casting material and preparation method thereof | |
| CN108358651B (en) | Aluminum-carbon refractory mortar added with recycled fine powder of skateboard and preparation method thereof | |
| CN109678529B (en) | Binding agent for producing three major parts of steel-making continuous casting and magnesia carbon brick | |
| CN105000893A (en) | High temperature resistant composite crucible and manufacturing method thereof | |
| CN104045355A (en) | Skimming tool for blast-furnace casting | |
| CN106348776A (en) | Novel high-viscosity high-fluidity magnesium refractory mortar | |
| CN110981502A (en) | Production method of ceramic bonding agent used in unburned carbon-containing brick process formula | |
| CN103833396B (en) | High-strength high-alumina brick prepared from homogenized alumina for calcium carbide furnace and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A kind of joint material for ladle nozzle seat brick Effective date of registration: 20201202 Granted publication date: 20160120 Pledgee: Suzhou SME financing Company limited by guarantee Pledgor: ANHUI PROVINCE XIAO COUNTRY HUALONG REFRACTORY MATERIALS Co.,Ltd. Registration number: Y2020980008715 |