CN1075309A - Process for making of aluminium-carbon refractories - Google Patents
Process for making of aluminium-carbon refractories Download PDFInfo
- Publication number
- CN1075309A CN1075309A CN 93110284 CN93110284A CN1075309A CN 1075309 A CN1075309 A CN 1075309A CN 93110284 CN93110284 CN 93110284 CN 93110284 A CN93110284 A CN 93110284A CN 1075309 A CN1075309 A CN 1075309A
- Authority
- CN
- China
- Prior art keywords
- curing process
- dipping
- blank
- time
- shaping
- 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.)
- Pending
Links
Abstract
The present invention relates to the refractory materials manufacturing, whole technology comprises batching, mixes, isostatic pressing, shaping, burn till, technology such as its outside surface spraying inoxidzable coating, characteristics are behind trimming, increase dipping, curing process, promptly flood blank, under 150-250 ℃, leave standstill then and solidified 16-30 hours with furane resin.The aluminum-carbon refractory material that this technology is made, its apparent oxygen porosity is reduced to below 4% by original 14%, and compressive strength is increased to 40-60MPa, has improved physical strength greatly.
Description
The present invention relates to the production of refractory materials.
Aluminum-carbon refractory material has the good temperature resistance energy, is widely used in metallurgical industry, as makes the stopper or the mouth of a river, uses in the ladle of iron and steel continuous casting process.At present, this aluminum-carbon refractory material is many to be aggregate with corundum and graphite, and carborundum powder and silica flour are additive, and resol is made wedding agent, through batching, mixing, hydrostatic pressing, shaping, burn till, operation such as surface spraying inoxidzable coating makes.The deficiency of above-mentioned aluminum-carbon refractory material is that ultimate compression strength is lower, generally about 30MPa, often occurs crack conditions in the use.
The objective of the invention is, a kind of production technique that can improve aluminum-carbon refractory material ultimate compression strength is provided, use the aluminum-carbon refractory material of this explained hereafter, its compressive strength approximately is increased to 40-60MPa.
Process for making of aluminium-carbon refractories of the present invention, comprise batching, raw material mixes, hydrostatic pressing, shaping, burn till, operation such as surface spraying inoxidzable coating, the major technique characteristics are, behind above-mentioned trimming, increase dipping operation and curing process, the processing condition of described dipping operation are: the blank after the shaping is put into pressure vessel, in container, add furane resin again and make the whole blank of its submergence, in the 6-15 kilograms per centimeter
2Pressure under, the normal temperature hold-time is 30-90 minute, its objective is in the hole that makes carbonaceous furane resin enter blank, the condition of described curing process is, impregnated blank is left standstill under solidification value 150-250 ℃, and the time is 16-30 hour, then sends to again and burns till.
The optimum pressure of above-mentioned dipping operation is the 8-11 kilograms per centimeter
2, the best hold-time is 50-70 minute.
The best curing temperature of described curing process is that 180-220 ℃ of Best Times is 22-26 hour.
If further improve the withstand voltage temperature of product, blank can be flooded, solidifies repeatedly and carry out 2-5 time.Promptly after single-steeping, curing, blank is flooded, solidifies.
With the aluminum-carbon refractory material that processing method of the present invention is invited, its apparent oxygen porosity is reduced to below 4% by original 14%, and withstand voltage temperature is increased to 40-60MPa by original 30MPa, has improved its physical strength greatly.
Specific embodiment is: make the stopper that uses in the ladle, composition of raw materials: electric smelting diamantane 60%, flaky graphite 25%, carborundum powder 4%, silica flour 4%, Alpha-alumina micro mist 1%, aqueous resol 5.6%, solid phenolic resin 0.4%.After raw material prepares by above-mentioned prescription, putting into powerful muller mixed 30 minutes, material after will mixing again injects the stopper mould, and at hydrostatic pressing machine internal shaping, its operating pressure is 150-300MPa, dwell time is 1 hour, failed part after taking-up is shaped is inserted in the high-pressure impregnation narrow-necked earthen jar, in narrow-necked earthen jar behind mechanical shaping, furane resin soak establishes whole stopper base substrate, after be forced into 10 kilograms per centimeter
2, pressurize is 1 hour under the normal temperature, finishes dipping back taking-up base substrate and puts into curing room, curing room is a barbecue chamber, and its temperature is 200 ℃, 24 hours set times, curing process after finishing is sent in the roasting kiln blank in 1300 ℃ of following roastings 4 hours, take out burned stopper, the inoxidzable coating of its outside surface spraying 0.1-0.5 mm thick promptly gets the finished product, its coating is by feldspar 25-40%, low bauxite 25-40%, calcination of talc 15-25%, surplus is that water glass and toner are formulated.
Claims (5)
1, the production technique of aluminum-carbon refractory material, comprise that batching, raw material mix, hydrostatic pressing, shaping, burn till, operation such as surface spraying inoxidzable coating, it is characterized in that, behind described trimming, increase dipping operation and curing process, the processing condition of dipping operation are that the blank after the shaping is put into pressure vessel, the adding furane resin soak it and establish whole blank in container again, in the 6-15 kilograms per centimeter
2Pressure under, the normal temperature hold-time is 30-90 minute, the condition of described curing process is, the blank that dipping is good leaves standstill under solidification value 150-250 ℃, the time is 16-30 hour.
According to the described technology of claim 1, it is characterized in that 2, the optimum pressure of described dipping operation is the 8-11 kilograms per centimeter
2, the best hold-time is 50-70 minute.
According to claim 1 or 2 described technologies, it is characterized in that 3, the best curing temperature of described curing process is 180-220 ℃, Best Times is 22-26 hour.
4, according to claim 1 or 2 described technologies, it is characterized in that described dipping, curing process carry out 2-5 time repeatedly.
According to the described technology of claim 3, it is characterized in that 5, described dipping, curing process carry out 2-5 time repeatedly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93110284 CN1075309A (en) | 1993-02-25 | 1993-02-25 | Process for making of aluminium-carbon refractories |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93110284 CN1075309A (en) | 1993-02-25 | 1993-02-25 | Process for making of aluminium-carbon refractories |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1075309A true CN1075309A (en) | 1993-08-18 |
Family
ID=4988163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93110284 Pending CN1075309A (en) | 1993-02-25 | 1993-02-25 | Process for making of aluminium-carbon refractories |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1075309A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107999737A (en) * | 2017-03-24 | 2018-05-08 | 王世泰 | A kind of combined binder, continuous casting refractory piece and preparation process for continuous casting refractory piece |
| CN109400128A (en) * | 2018-11-08 | 2019-03-01 | 浙江皓翔矿业有限公司 | A kind of aluminum-carbon refractory material of the powder containing pyrophillite and preparation method thereof |
| CN111960832A (en) * | 2020-08-24 | 2020-11-20 | 青岛弘汉耐火材料有限公司 | Bare body sintering coating for aluminum-carbon product and bare body sintering method |
-
1993
- 1993-02-25 CN CN 93110284 patent/CN1075309A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107999737A (en) * | 2017-03-24 | 2018-05-08 | 王世泰 | A kind of combined binder, continuous casting refractory piece and preparation process for continuous casting refractory piece |
| CN107999737B (en) * | 2017-03-24 | 2020-05-05 | 王世泰 | Preparation process of continuous casting refractory part |
| CN109400128A (en) * | 2018-11-08 | 2019-03-01 | 浙江皓翔矿业有限公司 | A kind of aluminum-carbon refractory material of the powder containing pyrophillite and preparation method thereof |
| CN109400128B (en) * | 2018-11-08 | 2021-11-30 | 浙江皓翔矿业有限公司 | Pyrophyllite powder-containing aluminum-carbon refractory material and preparation method thereof |
| CN111960832A (en) * | 2020-08-24 | 2020-11-20 | 青岛弘汉耐火材料有限公司 | Bare body sintering coating for aluminum-carbon product and bare body sintering method |
| CN111960832B (en) * | 2020-08-24 | 2022-10-11 | 青岛弘汉耐火材料有限公司 | Bare body sintering coating for aluminum-carbon product and bare body sintering method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2003245893B2 (en) | Fiber reinforced filter for molten metal filtration and method for producing such filters | |
| CN103387404B (en) | Material used for mould, mould and mould preparation method | |
| CN113292318A (en) | Preparation method of ZTA/high-chromium cast iron composite wear-resistant material | |
| CN104073673A (en) | Preparation method of ceramic reinforced metal-based composite material | |
| CN111531166A (en) | Method for improving sintering density of iron-based powder metallurgy part | |
| CN113653859A (en) | Production process of high-temperature structural ceramic material pipe for aluminum alloy die casting machine | |
| CN1075309A (en) | Process for making of aluminium-carbon refractories | |
| CN114907133B (en) | Silicon-based ceramic core material, preparation method and silicon-based ceramic core | |
| CN100450971C (en) | Preparation method of A1-A1N-ZrO2 ceramic material | |
| CN107602137B (en) | Inner nozzle brick of steel tapping hole of cast-molded converter and preparation method thereof | |
| US3017677A (en) | Composition and method of forming ceramic cores | |
| CN1032746C (en) | Aluminium carbon integrated filler rod | |
| CN115196980A (en) | Preparation method of magnesia-carbon refractory castable | |
| CN110090946B (en) | Core nozzle for thin strip continuous casting and manufacturing method thereof | |
| CN103011850A (en) | Andalusite-SiC-C brick for liquid iron zone of torpedo car and method for producing same | |
| CN112624774A (en) | Metal ceramic converter slag stopping slide plate brick material and preparation method thereof | |
| CN106001426B (en) | A kind of yoke plate casting technique | |
| CN106986619B (en) | High-temperature nano unfired sliding plate and processing technology thereof | |
| CN101480714B (en) | Technological process for improving quality of titanium alloy surface typecasting | |
| CN1099368A (en) | Process of making silicon carbide refractory board | |
| US3164872A (en) | Method and composition for forming precision molds | |
| CN113999008B (en) | Low-carbon submersed nozzle lining and preparation method thereof | |
| CN109851372B (en) | High-temperature metal corrosion resistant castable and preparation and forming method thereof | |
| CN110695331B (en) | Preparation process of metal ceramic plate and metal ceramic plate | |
| CN109180165B (en) | Preparation method of sliding plate brick |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |