CN1174764A - Ceramic metal roll-ring - Google Patents
Ceramic metal roll-ring Download PDFInfo
- Publication number
- CN1174764A CN1174764A CN 96109542 CN96109542A CN1174764A CN 1174764 A CN1174764 A CN 1174764A CN 96109542 CN96109542 CN 96109542 CN 96109542 A CN96109542 A CN 96109542A CN 1174764 A CN1174764 A CN 1174764A
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- CN
- China
- Prior art keywords
- carbide
- metal roll
- ring
- roll
- cobalt
- 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
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- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Ceramic Products (AREA)
Abstract
The composition of the invented ceramic-metal roll collar for high-speed wire-milling finishing mill if composed of (wt%) 30-60% of tungston carbide, 6-25% of cobalt, 10-55% of aluminium oxide and 5-15% of zirconia. In the above-mentioned composition, 2-10% of niobium carbide or tantalum carbide als ocan be added. Said invention possesses the advantagss of high bending strength, good hot cracking resistance, good wearing resistance, long service life, light weight, conventient roll change, so that it can reduce the frequency of changing roll, and raise rolling efficiency.
Description
The present invention relates to a kind of high-speed rod-rolling mill finishing mill collar.
At present, use the high-speed rod-rolling mill finishing mill collar to make through technologies such as hot pressed sinterings by wolfram varbide and two kinds of components of cobalt.The shortcoming of this collars be wear no resistance, heat-resistant cracking is poor, bending strength is low, work-ing life is short.
The objective of the invention is to have higher bending strength, better heat-resisting fragility and wear resistance and carry from a kind of at above-mentioned shortcoming of the prior art, and the ceramic metal roll-ring of long service life.
The object of the present invention is achieved like this, and it is to improve to form on the basis of existing wolfram varbide and rigid alloy collars, and its component contains wolfram varbide, cobalt, aluminium sesquioxide and zirconium white, the proportioning of each component following (weight percent):
Wolfram varbide (WC): 30-60%
Cobalt (Co): 6-25%
Aluminium sesquioxide (Al
2O
3): 10-55%
Zirconium white (ZrO
2): 5-15%
Second embodiment of the present invention is to add niobium carbide in said components, and the content of niobium carbide (NbC) is 2-10%.
The 3rd embodiment of the present invention is to add tantalum carbide in the component of first scheme, and the content of tantalum carbide (TAC) is 2-10%.
Technical process of the present invention is as follows:
Batching → batch mixing wet-milling → mix glue granulation → coldmoulding → give thermojunction → hot pressed sintering → roughing → ground finish → open cell type → detection
The effect of its each component is as follows:
WC: improve heat crack resistance.
Co: binding agent, can produce the different hardness ceramic metal roll-ring according to different proportionings.
Al
2O
3: improve wear resisting property, change heat crack resistance.
ZrO
2: improve intensity.
NbC (T
AC): crystal grain thinning, improve intensity.
Advantage of the present invention is that bending strength height, heat crack resistance are good, wear resistance is good, work-ing life more former carbon tungsten roller ring be enhanced about more than once, in light weight, be convenient to roll change, and it is time good to have reduced roll change, has improved operating rate of rolling mill.
Be embodiments of the invention below:
Claims (3)
1, a kind of ceramic metal roll-ring is characterized in that its component contains wolfram varbide, cobalt, aluminium sesquioxide and zirconium white, the proportioning of each component following (weight percent):
Wolfram varbide (WC): 30-60%
Cobalt (Co): 6-25%
Aluminium sesquioxide (Al
2O
3): 10-55%
Zirconium white (ZrO
2): 5-15%
2, collars according to claim 1 is characterized in that also including in its component niobium carbide, and the content of niobium carbide (NbC) is 2-10%.
3, collars according to claim 1 is characterized in that also including in its component tantalum carbide, tantalum carbide (T
AC) content is 2-10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96109542A CN1061907C (en) | 1996-08-28 | 1996-08-28 | Cermet roller ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96109542A CN1061907C (en) | 1996-08-28 | 1996-08-28 | Cermet roller ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1174764A true CN1174764A (en) | 1998-03-04 |
| CN1061907C CN1061907C (en) | 2001-02-14 |
Family
ID=5120424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96109542A Expired - Fee Related CN1061907C (en) | 1996-08-28 | 1996-08-28 | Cermet roller ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1061907C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322940C (en) * | 2004-09-26 | 2007-06-27 | 河南科技大学 | Large section WCP/Fe-C composite material-nodular iron composite structure collars |
| CN104138948A (en) * | 2014-02-25 | 2014-11-12 | 芜湖长启炉业有限公司 | Special notching roller for foaming aluminum plate |
| CN107099720A (en) * | 2017-06-02 | 2017-08-29 | 四川大学 | A kind of aluminium alloy sintered carbide tool material for processing and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108486448B (en) * | 2018-03-26 | 2020-11-10 | 西安交通大学 | Preparation method of multiphase titanium diboride/titanium carbonitride-stainless steel cermet hot mill roll collar |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034875C (en) * | 1991-05-16 | 1997-05-14 | 天津大学 | Producing method for tungsten carbide based hard alloy |
| CN1033526C (en) * | 1994-10-25 | 1996-12-11 | 冶金工业部钢铁研究总院 | Tungsten carbide base hard alloy containing rare-earth and its oxides |
| CN2231144Y (en) * | 1995-08-31 | 1996-07-17 | 于超 | Composite ceramic roller ring |
-
1996
- 1996-08-28 CN CN96109542A patent/CN1061907C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322940C (en) * | 2004-09-26 | 2007-06-27 | 河南科技大学 | Large section WCP/Fe-C composite material-nodular iron composite structure collars |
| CN104138948A (en) * | 2014-02-25 | 2014-11-12 | 芜湖长启炉业有限公司 | Special notching roller for foaming aluminum plate |
| CN107099720A (en) * | 2017-06-02 | 2017-08-29 | 四川大学 | A kind of aluminium alloy sintered carbide tool material for processing and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1061907C (en) | 2001-02-14 |
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Legal Events
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|---|---|---|---|
| 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 | ||
| 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 |