CN1244515A - Zirconite ball making technology - Google Patents
Zirconite ball making technology Download PDFInfo
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- CN1244515A CN1244515A CN 99118965 CN99118965A CN1244515A CN 1244515 A CN1244515 A CN 1244515A CN 99118965 CN99118965 CN 99118965 CN 99118965 A CN99118965 A CN 99118965A CN 1244515 A CN1244515 A CN 1244515A
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Abstract
The present invention relates to a kind of silicon-zirconium bead containing small amount of alumina. It is prepared by adding small amount of alumia to zirconite, high temperature smelting in DC ore-smelting furnace, and high-pressure air spraying. It contains zirconia 60-70%, silica 28-33% and alumina 0-10%, and is white solid beads of 0-2.5 mm diameter. It is used widely as medium material in grinding and polishing.
Description
The present invention relates to a kind of manufacturing technology of zirconite ball.Specifically, the present invention relates to a kind of in the DC-ore-heating furnace that particular design is made fusion zircon and make the method for zirconite ball microballon with air blown.
Grinding and the polishing industry, the zirconite ball microballon has special purposes, the medium that is mainly used in extra-fine grinding and polishes at a high speed.It is difficult producing the zirconite ball microballon with traditional ceramic making method, is difficult to realize suitability for industrialized production.The external method that adopts high temperature solution high velocity air winding-up balling-up has produced the zirconite ball microballon, and has obtained practicality.In China, this technology and product also still belong to blank.
Purpose of the present invention solves zircon high-temperature fusion technology and high velocity air winding-up balling-up technology exactly, provides that a kind of technology is easy, reliable and stable, fusion and winding-up once finish the method for making zirconite ball.
The object of the present invention is achieved like this:
(1) with selected zircon as raw material, add a little commercial alumina as fusing assistant, aluminum oxide add-on＜10%.Above-mentioned raw materials adds 0～5% water, mixing time 10～30 minutes earlier through V-arrangement mixer thorough mixing during mixing.
(2) to adopt graphite block, the end anode furnace hearth degree of depth that is connected with liner be 1～1.5 times of furnace hearth internal diameter to the inner lining material of DC-ore-heating furnace, and the furnace hearth internal diameter is 2～3 times of negative electrode graphite rod diameter.Electric furnace current setting scope is 0～4000A.
(3) high-speed air flow is produced by air compressor machine, and nozzle is the flat steel pipe, and diameter of steel tube is 20～60mm, and the jet hole width is 1～7mm, and the air compressor machine air pressure is 8～10Kg/cm
2
(4) before the blow-on, the Graphite Electrodes rod is reduced to the position of touching with the furnace hearth bottom connection, dose the material that mixes around electrode bar, thickness is 50～100mm.Connect power supply, striking current is 1000～4000A, treat that the starting the arc is stable after, evenly reinforced, till furnace hearth being filled always.The electric furnace current stabilization in 1800～2500A scope, is added thermal material by submerged arc ore deposit heat, and control voltage gear occurs so that reduce the intensive arc light as far as possible.Through 30～60 minutes melting, material all melted, and sprayed ball immediately.
When (5) spraying ball, earlier bell is mentioned, mention electrode again, open the purging valve of air compressor machine.Turndown preferably adopts frequency conversion type, first quick and back slow, is complementary with the feed liquid flow velocity.
(6) zirconite ball of producing with this method, zirconia content is 60～70%, silica content is 28～33%, and alumina content is 0～10%, and sphere diameter is distributed as 0～2.5mm, density is 3.96, fusing point is 1980～2680 ℃, and intensity is 710N, and hardness is 7.2, color is a canescence, is microballon shape solid sphere.
Illustrate the present invention with embodiment below:
(1) the furnace hearth internal diameter of DC-ore-heating furnace and the furnace hearth degree of depth are 400mm, and Graphite Electrodes rod diameter is 150mm, and furnace transformer side voltage is 70V, and the air compressor machine air pressure is 10Kg/cm
2, the nozzle diameter of steel tube is 30mm, the jet hole width is 2mm.
(2) raw material is selected zircon sand and commercial alumina powder, and granularity is less than 0.2mm.Weigh zircon sand 240Kg and commercial alumina 20Kg add water 2600ml, mix 20 minutes with the V-arrangement mixer, and it is stand-by that the material that mixes is placed on the stokehold.
(3) the Graphite Electrodes rod is reduced to the position of touching with the furnace hearth bottom connection, reinforced 10Kg.Connect power supply, striking current is 3000A.After the current stabilization, evenly reinforced, the 260Kg material is added always.At this moment, the electric furnace current stabilization is in 1800～2500A scope.Melt after about 40 minutes, material all melts, and feed liquid is constantly emerged around stove upper electrode rod, and the intensive arc light begins to occur, and at this moment, mentions electrode bar, the ball of turndown spray immediately.Products obtained therefrom is the solid zirconite ball of canescence, and sphere diameter is 0～2.5mm.
Claims (6)
1, a kind of is raw material with the zircon, adds a little commercial alumina, and melting in DC-ore-heating furnace is jetted with air, makes the method for zirconite ball microballon.It is characterized in that: the anode of DC-ore-heating furnace is fixed on the electric furnace bottom, is connected with the furnace hearth liner, and negative electrode is the Graphite Electrodes rod, is suspended in furnace hearth central authorities, can move up and down: during the starting the arc, contact the starting the arc by positive and negative electrode; After the starting the arc was stable, raw material once added in the stove, and material heats by ore deposit heat; After treating the material fusion, blow ball immediately.
2, according to claim 1, the liner of DC-ore-heating furnace is a graphite.
3, according to claim 1, in the material heat-processed, voltage is 50～130V, and electric current is 0～4000A.
4, according to claim 1, zircon is the selected zircon sand of granularity less than 0.2mm.
5, according to claim 1, add 0～5% water in the zircon.
6, according to claim 1, the air blown flow velocity is 12 meter per seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99118965 CN1244515A (en) | 1999-09-03 | 1999-09-03 | Zirconite ball making technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99118965 CN1244515A (en) | 1999-09-03 | 1999-09-03 | Zirconite ball making technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1244515A true CN1244515A (en) | 2000-02-16 |
Family
ID=5280620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99118965 Pending CN1244515A (en) | 1999-09-03 | 1999-09-03 | Zirconite ball making technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1244515A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102795848A (en) * | 2012-08-02 | 2012-11-28 | 江苏锡阳研磨科技有限公司 | Low-temperature sintered zirconium silicate grinding ball and preparation method thereof |
| CN112457006A (en) * | 2020-12-20 | 2021-03-09 | 长沙县新光特种陶瓷有限公司 | Preparation process of zirconium silicate ball filler |
-
1999
- 1999-09-03 CN CN 99118965 patent/CN1244515A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102795848A (en) * | 2012-08-02 | 2012-11-28 | 江苏锡阳研磨科技有限公司 | Low-temperature sintered zirconium silicate grinding ball and preparation method thereof |
| CN102795848B (en) * | 2012-08-02 | 2013-10-23 | 江苏锡阳研磨科技有限公司 | Low-temperature sintered zirconium silicate grinding ball and preparation method thereof |
| CN112457006A (en) * | 2020-12-20 | 2021-03-09 | 长沙县新光特种陶瓷有限公司 | Preparation process of zirconium silicate ball filler |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |