CN1055433C - Welded ceramic composite guiding-board - Google Patents
Welded ceramic composite guiding-board Download PDFInfo
- Publication number
- CN1055433C CN1055433C CN95110580A CN95110580A CN1055433C CN 1055433 C CN1055433 C CN 1055433C CN 95110580 A CN95110580 A CN 95110580A CN 95110580 A CN95110580 A CN 95110580A CN 1055433 C CN1055433 C CN 1055433C
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- China
- Prior art keywords
- board
- foreplate
- ceramic
- guiding
- composite
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- Expired - Fee Related
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Abstract
The present invention develops a composite guiding-board using carbon fiber ceramic materials for rolling the working surface of the foreplate. The ceramic materials use composite structural layers, the upper layer is a working layer, the lower layer is a welding layer, and pressed ceramic blocks are welded on the basal body of the copper or the casting steel of the foreplate by brass. The composite guiding-board has the advantages of high thermal conductivity, favorable antifriction performance, high heat impact toughness, favorable weldability, obvious economical benefit and social benefit and wide prospect in popularization and application without dead burning or crack during rolling, the service life of the composite guiding-board can be ten times longer than that of a guiding-board made from high chromated nickel alloy materials, and the price of the composite guiding-board is 60 % of that of the guiding-board made from high chromated nickel alloy materials.
Description
The present invention relates to the high composite of a kind of high temperature wear resistant and impact flexibility, be specially adapted to metal hot rolling foreplates such as section bar, wire rod.
Foreplate is an indispensable vitals in section bar, the rod-rolling mill, and in the operation of rolling, foreplate bears thermal shock of irregular stress, strong high temperature wear, impact, tension and alternation etc., makes the foreplate serious wear, causes in a large number and scraps.Existing foreplate material has the casting pig of employing, spheroidal graphite cast-iron, carbon steel etc., and its wearability is lower, and service life is short; The white cast-iron of use material is arranged,, easily produce heat fatigue and destroy, chap, fall piece and whole plate fracture because white cast-iron is hard and crisp; The present high chromium nickel of domestic and international more employing (Cr30～50%, Ni15～20%) material, this material wearability is better, but because the high-chromium-nickel steel thermal conductivity factor is little, " steel bonding " is serious, influences its high temperature abrasion resistance, and this material costs an arm and a leg, and is difficult to widely apply.In order to reduce the foreplate cost, domestic also have a box-like foreplate of seminar, i.e. research is matrix with carbon steel, active section is the combination foreplate of the mechanical connection of high-chromium-nickel alloy, but its manufacturing, connection and adjustment are all very inconvenient, and because the high-chromium-nickel alloy thermal conductivity is relatively poor, the whole fracture of easily formation " steel bonding ", and foreplate waits and causes scrapping.For this reason, research improve foreplate be service life attach great importance to both at home and abroad and a still unsolved technical barrier.
It is good to the objective of the invention is to develop a kind of thermal conductivity, and toughness height, solderability are good, when rolling not " steel bonding ", do not rupture, the Ceramic Composite foreplate of high life.
The present invention develops the compound foreplate of the novel pottery money of a kind of usefulness material as the foreplate working face according to the foreplate actual operating conditions.Promptly on copper material or cast steel substrate, weld the ceramic material of carbon fiber-containing.Ceramic material has the fusing point height, and high temperature resistant (1300～2000 ℃), high rigidity, wearability is good, chemical stability is high and advantage such as resistance to oxidation corrosion, and the present invention selects WC, TiC, the Al of the high temperature wear resistant of high rigidity
2O
3Ceramic material, and make binding agent with cobalt, copper, to improve thermal conductivity factor, improve solderability, in ceramic material, add an amount of T300-M carbon fiber whisker and carry out Strengthening and Toughening, to improve intensity, toughness and the wearability of ceramic material.
Ceramic material of the present invention adopts lamination layer structure.Hot-forming in the hydrogen stove is the ceramic block of levels structure, and the upper strata is ceramic working lining, and lower floor is a weld layer.The pottery working lining is different with the proportioning components content of weld layer, and its proportioning components is: ceramic working lining: Al
2O
325～55, TiC15～30%, WC20～40%, Co6～15%, Cu3.5～8, carbon fiber 0.5～2%; Ceramic welding layer: TiC7～30%, WC50～80%, Co8～16, Cu4.5～10, carbon fiber 0.5～2%.Pottery work layer thickness is 4～6mm, and the ceramic welding layer thickness is 2mm, ceramic block bottom cobalt, the copper amount floor height of working, the low Al that do not contain of TiC content
2O
3, guarantee that ceramic working lining has very high high temperature wear resistant and weld layer that good solderability is arranged.
According to shape, the size of foreplate working face, after the composite ceramics piece of surface grinding is welded into monoblock with braze on loose tool, use braze on the copper material or steel matrix of foreplate the composite ceramics of integral body again compacting.
Welded ceramic composite guiding-board of the present invention has the thermal conductivity height, and anti-attrition is good, heat shock resistance toughness height, and solderability is good, and main performance index is: hardness (HRA) 87-89.5, bending strength (N/mm
2) 1750-2500, impact flexibility (J/cm
2) 2.5-3.8, thermal conductivity (KW/cm.k) 5.9-7.6.Can reach more than ten times of high chromium nickel foreplate material its service life, have remarkable economic efficiency, social benefit and popularizing application prospect widely.
Embodiment: the prescription of ceramic material is respectively (weight %) working lining: Al
2O
330, TiC15, WC45, Co6, Cu3.5, carbon fiber 0.5; Weld layer: TiC6, WC80, Co8, Cu5.5, carbon fiber 0.5.Will be in the hydrogen stove hot-formingly carry out surface grinding for the ceramic block of levels structure, shape, size according to the foreplate working face, composite ceramics piece after grinding is welded into monoblock with braze on loose tool, uses braze on the copper material matrix of foreplate the composite ceramics of integral body again.
Claims (2)
1. the compound foreplate that is used for the high temperature wear resistant of milling train, the ceramic material that it is characterized in that welding carbon fiber-containing on the foreplate of copper material or cast steel material matrix, ceramic material is a lamination layer structure, hot-forming, the upper strata is ceramic working lining, lower floor is the ceramic welding layer, and the proportioning components of its ceramic material (weight %) is respectively: ceramic working lining is Al
2O
325～55, TiC15～30, WC20～40, Co6～15, Cu3.5～8, carbon fiber 0.5～2; The ceramic welding layer is TiC7～30, WC50～80, Co8～16, Cu4.5～10, carbon fiber 0.5～2.
2. the compound foreplate of high temperature wear resistant according to claim 1 is characterized in that the composite ceramics piece braze with compression moulding is whole, uses braze on the basic material of foreplate the composite ceramics of integral body again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95110580A CN1055433C (en) | 1995-08-10 | 1995-08-10 | Welded ceramic composite guiding-board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95110580A CN1055433C (en) | 1995-08-10 | 1995-08-10 | Welded ceramic composite guiding-board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1142435A CN1142435A (en) | 1997-02-12 |
| CN1055433C true CN1055433C (en) | 2000-08-16 |
Family
ID=5077950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95110580A Expired - Fee Related CN1055433C (en) | 1995-08-10 | 1995-08-10 | Welded ceramic composite guiding-board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1055433C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101927585B (en) * | 2009-12-30 | 2012-11-28 | 哈尔滨工业大学 | Cover plate consisting of metal honeycomb structure and ceramics for thermal protection system |
| CN103056342B (en) * | 2013-01-28 | 2015-03-25 | 新兴铸管股份有限公司 | Production method of abrasion-resistant guide plate for perforating stainless steel billet |
| CN103272709A (en) * | 2013-06-20 | 2013-09-04 | 苏州速腾电子科技有限公司 | Wear-resisting cyclone separator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3520068A1 (en) * | 1984-06-05 | 1985-12-05 | Daido Metal Co. Ltd., Nagoya | COMPOSITION FOR SLIDING PARTS |
| JPH01127633A (en) * | 1987-11-10 | 1989-05-19 | Agency Of Ind Science & Technol | Surface treatment of carbon fiber |
| JPH03182337A (en) * | 1989-12-11 | 1991-08-08 | Sumitomo Electric Ind Ltd | Joined body of carbon fiber reinforced ceramic composite material |
-
1995
- 1995-08-10 CN CN95110580A patent/CN1055433C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3520068A1 (en) * | 1984-06-05 | 1985-12-05 | Daido Metal Co. Ltd., Nagoya | COMPOSITION FOR SLIDING PARTS |
| JPH01127633A (en) * | 1987-11-10 | 1989-05-19 | Agency Of Ind Science & Technol | Surface treatment of carbon fiber |
| JPH03182337A (en) * | 1989-12-11 | 1991-08-08 | Sumitomo Electric Ind Ltd | Joined body of carbon fiber reinforced ceramic composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1142435A (en) | 1997-02-12 |
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |