CN203752293U - Wear-resistant ceramic special-shaped block forming tooling - Google Patents
Wear-resistant ceramic special-shaped block forming tooling Download PDFInfo
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- CN203752293U CN203752293U CN201420059171.7U CN201420059171U CN203752293U CN 203752293 U CN203752293 U CN 203752293U CN 201420059171 U CN201420059171 U CN 201420059171U CN 203752293 U CN203752293 U CN 203752293U
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- special
- wear
- wallboard
- trapezoidal
- resistant ceramic
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Abstract
The utility model discloses a wear-resistant ceramic special-shaped block forming tooling comprising a female die, a female die cavity, two floating wall boards, positioning holes, position adjusting grooves, conical mandrels, a plurality of position-adjusting inserting sheets, a ceramic special-shaped block, a tapered hole, an upper punch, a lower punch, positioning pins, an isostatic pressing mandrel and a rubber film sleeve. The female die is provided with a female die cavity hole formed by a trapezoid and two rectangles, and the upper punch and the lower punch which match with the female die cavity are the same in structures and sizes. The rectangular cavity is provided with the floating wall boards in same structures. The positioning holes are formed in the centers of the sides of the floating wall boards. The positioning pins are arranged in the conical mandrels, the diameters of the positioning pins match with the size of the positioning holes of the floating wall boards, the position adjusting grooves are formed in the sides of the upper ends of the floating wall boards, and the position-adjusting inserting sheets are inserted into the position adjusting grooves and are same in sizes and different in thicknesses. By pre-pressing forming and isostatic pressing forming, production efficiency is improved, and wear resistance of products is improved.
Description
Technical field
The utility model relates to a kind of structural ceramics parts machining technical equipment field, particularly the special-shaped formation of lots frock of a kind of wear-resistant ceramic.
Background technology
Wear-resistant ceramic is with AL
2o
3for primary raw material, taking rare metal oxide as flux, the extraordinary corundum ceramic forming through 1,700 degree high-temperature roastings, then the product forming by specific rubber and high-intensity organic/inorganic binder combination respectively.Main as corrosion-resistant, wear parts, its wearability is equivalent to 260 times of manganese steel, 170 times of rich chromium cast iron; Hardness reaches HRA80-90, and hardness is only second to diamond, considerably beyond abrasion-resistant stee and stainless anti-wear performance; Lightweight, density is 3.6-3.9g/cm
3, be only the half of iron and steel, can greatly alleviate machine utilization; Under equal operating mode, at least extension device service life is more than ten times.
Because the performance of wear-resistant ceramic excellence is widely used in each wear-resisting field, but, moulding manufacturing technology and the device of the wear-resistant ceramic parts in various special applications, also cannot meet the needs in market, particularly more difficult with processing for the moulding of the special-shaped parts of wear-resistant ceramic, production efficiency is low.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of wear-resistant ceramic special-shaped formation of lots frock, for the special-shaped formation of lots difficulty of wear-resistant ceramic, there is no supporting jig making tool problem, design the special-shaped piece special tooling of application in abrasion-proof earthenware duct and wear-resistant ceramic body of heater, adopt dry-pressing preformed, liquid phase isostatic compaction, high-sintering process, realized the moulding and manufacture in batches of the special-shaped piece of wear-resistant ceramic.
For achieving the above object, the technical solution of the utility model is as follows: the special-shaped formation of lots frock of a kind of wear-resistant ceramic, comprise former, negative impression, the wallboard that floats, locating hole, positioning groove, tapered plug, positioning inserted sheet, ceramic special-shaped piece, taper hole, upper punch, low punch, alignment pin, etc. static pressure plug and Rubber membrane cover, it is characterized in that:
As shown in Figure 1-2, the special-shaped piece cross section of described pottery is one trapezoidal, and its center is provided with a round taper hole, and described trapezoidal and the gradient of round taper hole be that opposite direction configures with tapering, also Just because of this, and the mould design comparison difficulty of ceramic special-shaped piece; The special-shaped block length direction of described pottery end face is parallel, as the preformed stamping surface of dry-pressing; The effect that the special-shaped piece of described pottery is inverted taper hole is for bolt or tapered, special-shaped pottery piece to be fixed on the inwall of abrasion-proof pipe, the special-shaped piece of described pottery is arranged along abrasion-proof pipe inner wall surrounding, form overall wear-resisting inwall piece layer, thereby realize the wear-resisting functions of inner-walls of duct.
According to the special construction of ceramic special-shaped piece, described former longitudinally has negative impression through hole, described former lumen pore is by trapezoidal and be arranged at described trapezoidal top and following rectangle forms, in described trapezoidal cavity, be provided with trapezoidal upper punch and trapezoidal low punch, described upper punch is identical with low punch structure, and its size is mated with the described trapezoidal size of negative impression; Described rectangular cavities is provided with the unsteady wallboard of two same structures, and its rectangular dimension is mated with the rectangular dimension of described negative impression; The center, side of described unsteady wallboard is provided with locating hole, for fixed cone core rod; Described tapered plug is a circular cone structure, above the described frustum of a cone be respectively arranged with cylindrical alignment pin below, described alignment pin diameter mates with described unsteady wallboard locating hole size, described unsteady wallboard is provided with positioning groove near upper side, in described positioning groove, insert positioning inserted sheet, described positioning inserted sheet is provided with multiple, has same size different-thickness, for the taper hole position at the special-shaped piece of the time pottery center of adjusting dry-pressing preformed.
Described female mould structure dry-pressing preformed die body, described upper punch and low punch form two end faces of ceramic special-shaped piece, described unsteady wallboard forms the top and bottom part of ceramic special-shaped piece, and by alignment pin fixed cone core rod, orient the tapered centre hole of ceramic special-shaped piece by tapered plug, and all the other lateral parts of ceramic special-shaped piece are made up of negative impression wall.
The special-shaped piece of described pottery is manufactured by high purity alumina powder, Zirconium powder or both mixture material powders, add bonding agent, described bonding agent is a kind of or any several mixture in lubricant, plasticizer, dispersant, surfactant, and described bonding agent is a kind of or any several mixture in polyvinyl butyral resin, allyl resin, methylcellulose, polypropylene, polycarboxylic acids ammonium; The mass percent of described bonding agent addition is 1%---10%; By described material powder mix, homogeneous, after the techniques such as dry, grinding, filtration, special-shaped above-mentioned pottery block forming die is assembled on hydraulic press or hydraulic press, ceramic material body is loaded in mould, carry out dry-pressing preformed processing, manufacture and obtain ceramic special-shaped piece blank, by static pressure plugs such as the centre bore insertions of the special-shaped piece blank of obtained pottery, then pack in Rubber membrane cover the outer the airtight with plastic film plastic packaging that uses into; By the blank of good seal part in batches, be lifted on by rope in the static-pressure chambers such as liquid, carry out isostatic compaction processing; After the static pressure machine-shapings such as liquid, take out ceramic special-shaped piece, send into high temperature sintering furnace and carry out sintering curing; After high temperature sintering, the special-shaped piece of pottery is carried out to shaping, fine finishining, finally obtain the special-shaped piece product of wear-resistant ceramic.
The material of described former, drift, wallboard and plug is the one in Cr12 mould steel, Cr12MoV, Cr12Mo1V1 or matrix steel;
Special-shaped piece alumina content>=95% of described ceramic wear-resisting; Density>=3.5g/cm
3; Rockwell hardness>=80HRA; Compression strength>=850MPa; Fracture toughness KIC>=4.8MPam
1/2; Bending strength>=290MPa.
The special-shaped block length of described pottery is 30mm-100mm; Width is 20/25mm--80/100mm; Thickness is 20mm-80mm; Taper hole diameter is 16mm-28mm.
Described cavity dimension is 220mm*220mm*(200---500) mm; All the other module sizes are mated design with product size.
Pass through technique scheme, the beneficial effect of technical solutions of the utility model is: by dry-pressing preformed frock, solve ceramic special-shaped piece blank moulding problem, realize the isostatic compaction of ceramic special-shaped piece by static pressure such as liquid, further obtained the special-shaped piece product of high-quality pottery by sintering and fine finishining; Make product can wait in batches static pressure processing by forming frock, improved production efficiency and the machining accuracy of ceramic profiled piece, improved every anti-wear performance of product.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the special-shaped formation of lots tool structure of the disclosed a kind of wear-resistant ceramic of the utility model embodiment schematic diagram;
The special-shaped piece three-view diagram of the special-shaped formation of lots frock pottery of the disclosed a kind of wear-resistant ceramic of Fig. 2 the utility model embodiment;
Fig. 3 is the special-shaped formation of lots frock of the disclosed a kind of wear-resistant ceramic of the utility model embodiment upper punch front view schematic diagram;
Fig. 4 is the special-shaped formation of lots frock of the disclosed a kind of wear-resistant ceramic of the utility model embodiment upper punch top view schematic diagram;
Fig. 5 is the special-shaped formation of lots frock of the disclosed a kind of wear-resistant ceramic of the utility model embodiment low punch front view schematic diagram;
Fig. 6 is the unsteady wallboard three-view diagram schematic diagram of the special-shaped formation of lots frock of the disclosed a kind of wear-resistant ceramic of the utility model embodiment;
Fig. 7 is the tapered plug three-view diagram of the utility model embodiment special-shaped formation of lots frock of disclosed a kind of wear-resistant ceramic schematic diagram;
Fig. 8 is the static pressure plug three-view diagram schematic diagrames such as the special-shaped formation of lots frock of the disclosed a kind of wear-resistant ceramic of the utility model embodiment;
Fig. 9 is the special-shaped formation of lots frock of the disclosed a kind of wear-resistant ceramic of the utility model embodiment Rubber membrane cover schematic diagram.
Numeral and the represented corresponding component title of letter in figure:
1. unsteady wallboard 4. locating holes of former 2. negative impression 3.
5. the tapered plug 7. of the positioning groove 6. ceramic special-shaped piece of inserted sheet 8. of transposing
9. taper hole 10. upper punch 11. low punch 12. alignment pins
13. 14. Rubber membrane covers such as plug such as static pressure such as grade
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
According to Fig. 1 to Fig. 9, the utility model provides a kind of wear-resistant ceramic special-shaped formation of lots frock, comprise former 1, negative impression 2, the wallboard 3 that floats, locating hole 4, positioning groove 5, tapered plug 6, positioning inserted sheet 7, ceramic special-shaped piece 8, taper hole 9, upper punch 10, low punch 11, alignment pin 12, etc. static pressure plug 13 and Rubber membrane cover 14, it is characterized in that:
Special-shaped piece 8 cross sections of described pottery are one trapezoidal, and its center is provided with a conical bore 9, and described trapezoidal and conical bore 9 gradients and tapering be that opposite direction configures, also Just because of this, and the mould design comparison difficulty of ceramic special-shaped piece 8; The special-shaped piece 8 length direction end faces of described pottery are parallel, as the preformed stamping surface of dry-pressing; The effect that the special-shaped piece 8 of described pottery is inverted taper hole 9 is for bolt or tapered, special-shaped pottery piece 8 to be fixed on the inwall of abrasion-proof pipe, the special-shaped piece 8 of described pottery is arranged along abrasion-proof pipe inner wall surrounding, form overall wear-resisting inwall piece layer, thereby realize the wear-resisting functions of inner-walls of duct.
According to the special construction of ceramic special-shaped piece 8, described former 1 longitudinally has negative impression 2 through holes, described negative impression 2 holes are by trapezoidal and be arranged at described trapezoidal top and following rectangle forms, in described trapezoidal cavity, be provided with trapezoidal upper punch 10 and trapezoidal low punch 11, described upper punch 10 is identical with low punch 11 structures, and its size is mated with the described trapezoidal size of negative impression 2; Described rectangular cavities is provided with the unsteady wallboard 3 of two same structures, and its rectangular dimension is mated with the rectangular dimension of described negative impression 2; The center, side of described unsteady wallboard 3 is provided with locating hole 4, for fixed cone core rod 6; Described tapered plug 6 is a circular cone structure, above the described frustum of a cone be respectively arranged with cylindrical alignment pin 12 below, described alignment pin 12 diameters mate with locating hole 4 sizes on described unsteady wallboard 3, described unsteady wallboard 3 is provided with positioning groove 5 near upper side, the interior insertion positioning of described positioning groove 5 inserted sheet 7, described positioning inserted sheet 7 is provided with multiple, has same size different-thickness, for the center of the taper hole 9 at the special-shaped piece of time pottery 8 centers of adjusting dry-pressing preformed.
Described former 1 structure dry-pressing preformed die body, described upper punch 10 and low punch 11 form two parallel end faces of ceramic special-shaped piece 8, described unsteady wallboard 3 forms the top and bottom part of ceramic special-shaped piece 8, and by alignment pin 12 fixed cone core rods 6, orient the center taper hole 9 of ceramic special-shaped piece 8 by tapered plug 6, and all the other lateral parts of ceramic special-shaped piece 8 are made up of negative impression 2 walls.
The special-shaped piece 8 of described pottery is manufactured by high purity alumina powder, Zirconium powder or both mixture material powders, adds bonding agent;
Preferably, described bonding agent is polyvinyl butyral resin and polycarboxylic acids ammonium;
Preferably, described bonding agent addition (mass percent) polyvinyl butyral resin is 2%; Polycarboxylic acids ammonium is 1.5%.
By described material powder mix, homogeneous, after the techniques such as dry, grinding, filtration, special-shaped above-mentioned pottery piece 8 moulds are assembled on hydraulic press or hydraulic press, ceramic material body is loaded in mould, carry out dry-pressing preformed processing, manufacture the blank that obtains ceramic special-shaped piece 8, by static pressure plugs 13 such as the centre bore insertions of special-shaped piece 8 blanks of obtained pottery, then pack in Rubber membrane cover 14 the outer the airtight with plastic film plastic packaging that uses into; By the blank of good seal part in batches, be lifted on by rope in the static-pressure chambers such as liquid, carry out isostatic compaction processing; After the static pressure machine-shapings such as liquid, take out ceramic special-shaped piece the demoulding, then send into high temperature sintering furnace and carry out sintering curing; After high temperature sintering, the special-shaped piece of pottery is carried out to shaping, fine finishining, finally obtain the special-shaped piece product of wear-resistant ceramic.
Preferably, the material of described former, drift, wallboard and plug is Cr12 mould steel;
Preferably, the special-shaped block length of described pottery is 40mm; Width is 30/40mm; Thickness is 30mm; Taper hole diameter is 20/12mm;
Preferably, described cavity dimension is 220mm*220mm*300mm; All the other module sizes are mated design with product size.
By above-mentioned specific embodiment, the beneficial effects of the utility model are: by dry-pressing preformed frock, solve ceramic special-shaped piece blank moulding problem, realize the isostatic compaction of ceramic special-shaped piece by static pressure such as liquid, further obtained the special-shaped piece product of high-quality pottery by sintering and fine finishining; Make product can wait in batches static pressure processing by forming frock, improved production efficiency and the machining accuracy of ceramic profiled piece, improved every anti-wear performance of product.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. the special-shaped formation of lots frock of wear-resistant ceramic, it is characterized in that, comprise former, negative impression, the wallboard that floats, locating hole, positioning groove, tapered plug, positioning inserted sheet, ceramic special-shaped piece, taper hole, upper punch, low punch, alignment pin, etc. static pressure plug and Rubber membrane cover; Described former longitudinally has negative impression through hole, described former lumen pore is by trapezoidal and be arranged at described trapezoidal top and following rectangle forms, in described trapezoidal cavity, be provided with trapezoidal upper punch and trapezoidal low punch, described upper punch is identical with low punch structure, and its size is mated with the described trapezoidal size of negative impression; Described rectangular cavities is provided with the unsteady wallboard of two same structures, and its rectangular dimension is mated with the rectangular dimension of described negative impression; Center, described unsteady wallboard side is provided with locating hole, for fixed cone core rod; Above the frustum of a cone of described tapered plug be respectively arranged with cylindrical alignment pin below, described alignment pin diameter mates with described unsteady wallboard locating hole size, described unsteady wallboard is provided with positioning groove near upper side, in described positioning groove, insert positioning inserted sheet, described positioning inserted sheet is provided with multiple, there is same size different-thickness, for the taper hole position at the special-shaped piece of the time pottery center of adjusting dry-pressing preformed.
2. the special-shaped formation of lots frock of a kind of wear-resistant ceramic according to claim 1, is characterized in that, the material of described former, upper punch, low punch and unsteady wallboard and tapered plug is the one in Cr12 mould steel, Cr12MoV, Cr12Mo1V1 or matrix steel.
3. the special-shaped formation of lots frock of a kind of wear-resistant ceramic according to claim 1, is characterized in that, the special-shaped block length of described pottery is 30mm-100mm; Width is 20/25mm-80/100mm; Thickness is 20mm-80mm; Taper hole diameter is 16mm-28mm.
4. the special-shaped formation of lots frock of a kind of wear-resistant ceramic according to claim 1, is characterized in that, described cavity dimension is 220mm*220mm* (200-500) mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420059171.7U CN203752293U (en) | 2014-02-08 | 2014-02-08 | Wear-resistant ceramic special-shaped block forming tooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420059171.7U CN203752293U (en) | 2014-02-08 | 2014-02-08 | Wear-resistant ceramic special-shaped block forming tooling |
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| Publication Number | Publication Date |
|---|---|
| CN203752293U true CN203752293U (en) | 2014-08-06 |
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ID=51247595
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420059171.7U Expired - Fee Related CN203752293U (en) | 2014-02-08 | 2014-02-08 | Wear-resistant ceramic special-shaped block forming tooling |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110272293A (en) * | 2019-04-11 | 2019-09-24 | 山东工业陶瓷研究设计院有限公司 | A kind of abnormally-structured ceramic matric composite antenna house and preparation method thereof |
| CN112297191A (en) * | 2020-09-21 | 2021-02-02 | 佛山市恒虹陶瓷有限公司 | One-step forming method of hollow-out and special-shaped ceramic rock plate |
-
2014
- 2014-02-08 CN CN201420059171.7U patent/CN203752293U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110272293A (en) * | 2019-04-11 | 2019-09-24 | 山东工业陶瓷研究设计院有限公司 | A kind of abnormally-structured ceramic matric composite antenna house and preparation method thereof |
| CN112297191A (en) * | 2020-09-21 | 2021-02-02 | 佛山市恒虹陶瓷有限公司 | One-step forming method of hollow-out and special-shaped ceramic rock plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20160208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |