CN204748372U - Install compound wear -resisting preparation frock of losing layer additional on metal substrate of electric mill grinding roller cover and/or mill tile - Google Patents
Install compound wear -resisting preparation frock of losing layer additional on metal substrate of electric mill grinding roller cover and/or mill tile Download PDFInfo
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- CN204748372U CN204748372U CN201520321067.5U CN201520321067U CN204748372U CN 204748372 U CN204748372 U CN 204748372U CN 201520321067 U CN201520321067 U CN 201520321067U CN 204748372 U CN204748372 U CN 204748372U
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Abstract
The utility model provides an install compound wear -resisting preparation frock of losing layer additional on metal substrate of electric mill grinding roller cover and/or mill tile, the frock is including fixing a position layer board, locating plate, mould curb plate, vacuum pump interface, advancing thick liquids interface, mould end, mould upper cover and division board, the locating plate sets up on the layer board of location, in the bottom entry locating plate of structural ceramics post, the upper end card is in the division board, mould curb plate and mould end are common to be set up on the layer board of location, mould curb plate, mould end and location layer board are formed with the spatial structure of a cavity, the mould upper cover is fixed with mould curb plate and mould end respectively, divide the sealed lid of mould to fix the spatial structure who is formed with a cavity with mould curb plate and mould end respectively, the vacuum pump interface with advance the thick liquids interface set up respectively mould upper cover top and bottom and with spatial structure inside link up mutually. The utility model discloses can bond thermosetting resin on the metal substrate of grinding roller cover and/or mill tile with the structural ceramics post and the carborundum granule of ordered arrangement.
Description
Technical field
The utility model belongs to wear-resistant, anti-corrosion composite material field, relate to and a kind ofly on the metal base of electric mill grinding roller sleeve and/or millstone sheet, use thermosetting resin and structural ceramics to be compounded to form the preparation frock of abrasion resistant layer, particularly relate to and a kind ofly use thermosetting resin the structural ceramics post of ordered arrangement and silicon-carbide particle to be bonded on the metal base of grinding roller sleeve and/or millstone sheet to form preparation frock that is wear-resistant and etch resistant layer.
Background technology
Along with the development of industrial technology and modern economy, the demand of powder increases rapidly in multiple industry, is also increasing rapidly as the critical piece grinding roller sleeve of powder manufacturing apparatus and/or the consumption of millstone sheet.Especially domestic thermal power plant is developed very fast under the promotion of industrial development, and for electric mill grinding roller sleeve and/or the millstone sheet of thermal power plant processing coal dust, annual consumption is very huge.The electric mill grinding roller sleeve of current use and/or millstone sheet all mainly steel alloy manufacture, its anti-wear performance is poor, and working life is short.If use silicon carbide structure ceramic making grinding roller sleeve and/or millstone sheet, then its anti-erosion performance is extremely excellent, the service life of the grinding roller sleeve that service life makes than metal and/or millstone sheet grows tens times even tens times, but its cost of manufacture is too high, and shock resistance is poor, practical application can not be entered.According to the silicon-carbide particle of particle size range at F6 ~ F220, and through rational blending powder, again with thermosetting resin produced with combination grinding roller sleeve and/or millstone sheet, then its anti-erosion performance is also very outstanding, although the twice in the grinding roller sleeve that service life is metal to be made and/or the service life of millstone sheet is to five times, 306 stainless four to five times, but not ideal enough.For many years the anti scuffing research work of grinding roller sleeve and/or millstone sheet is being done always by scientific worker and enterprise, larger breakthrough achievement is had to be inlay silicon carbide ceramics post on steel alloy metal grinding roller sleeve and/or millstone sheet in the recent period, the service life of grinding roller sleeve and/or millstone sheet is improve 4 times, and energy consumption reduces more than 10%.But the production efficiency of inlaying the grinding roller sleeve of silicon carbide ceramics post and/or millstone sheet is low, and manufacturing cost is high.
Utility model content
In order to solve the above-mentioned technical problem existed in background technology, the utility model provides a kind of thermosetting resin that uses and the structural ceramics post of ordered arrangement and silicon-carbide particle is bonded in the preparation work metal base of grinding roller sleeve and/or millstone sheet being formed anti abrasion layer and etch resistant layer.
Technical solution of the present utility model is: the utility model provides a kind of preparation frock installing complex abrasion-proof erosion layer on the metal base at electric mill grinding roller sleeve and/or millstone sheet additional, and its special character is: described preparation frock comprises the Split mold for making separate prefabricated and the unitary mould for completing the making of overall grinding roller sleeve;
Described Split mold comprises location supporting plate, location-plate, die side plate, Split mold vacuum pump interface, Split mold enter slurry interface, die tip, mould upper cover and for by demarcation strip fixing for structural ceramics post; Described location-plate is arranged on the supporting plate of location; Described location-plate arranges counterbore; The lower end of structural ceramics post is inserted in the counterbore of location-plate, and the upper end of structural ceramics post is stuck in demarcation strip; Described die side plate and die tip are co-located on the supporting plate of location; Described die side plate and die tip are two groups respectively; Described die side plate and die tip and location supporting plate are formed with the space structure of a cavity jointly; Described mould upper cover is arranged on the top of space structure and fixes with die side plate and die tip respectively;
Described parting seal cover unload location-plate and location supporting plate be placed on space structure bottom and be fixedly formed with the space structure of a cavity with die side plate and die tip respectively; Described vacuum pump interface is arranged on tops on mould and connects with space structure inside; Described Split mold enters slurry interface and to be arranged on bottom parting seal cover and to connect with space structure inside;
Described unitary mould comprises bracing member, pole, separate prefabricated is stuck in the vacuum pump interface entering slurry interface and unitary mould of the positioning fixture in unitary mould, the upper shell being fastened on separate prefabricated outer surface and lower house, seal cover, unitary mould; Described bracing member alternately fixes separate prefabricated respectively by pole and positioning fixture; Described upper shell and lower house mutually fasten and form hollow structure with the annular metal base material of seal cover, grinding roller sleeve; Separate prefabricated splicing is placed in hollow structure; The vacuum pump interface entering slurry interface and unitary mould of described unitary mould to be separately positioned on lower house and upper shell and to connect with hollow structure; The inner curve of mould upper cover of described Split mold is identical with the inner curve of the lower house of unitary mould or the inner curve of upper shell.
Above-mentioned pole is provided with the adjusting bolt for regulating strut lengths.
The utility model has the advantages that:
The utility model provides a kind of thermosetting resin and silicon-carbide particle and the structural ceramics post be rolled in fibrous braid is bonded in the preparation work metal base that the annular metal base material of grinding roller sleeve formed erosion resistant grinding roller sleeve and be bonded in millstone sheet being formed erosion resistant millstone sheet, structural ceramics plunger mainly enters in fiberglass braided thing by this preparation work, the braid recruitment the installing structural ceramics post tool that is installed in an orderly manner, is fitly fixed in Split mold, again with casting resin filling full marks mould, heating makes separate prefabricated; Then load unitary mould and the full casting resin of filling according to the quantity of design by separate prefabricated, erosion resistant electric mill grinding roller sleeve and/or millstone sheet are made in heating.The erosion resistant electric mill grinding roller sleeve that the utility model is made and/or millstone sheet improve abrasion resistance significantly, extend nearly ten times than the service life of traditional electric mill grinding roller sleeve and/or millstone sheet, have saved a large amount of manpower and materials produced in safeguarding; The utility model adopt thermosetting resin and silicon-carbide particle shaping at low temperatures, reduce energy consumption, decrease the consumption of noble metal, simplify production technology, greatly saved production cost.Simultaneously, preparation work disclosed in the utility model ensure that silicon-carbide particle is evenly distributed in electric mill grinding roller sleeve and/or millstone sheet, and thermosetting resin enriches bubble-free in electric mill grinding roller sleeve and/or millstone sheet, decreases the possibility that product is in use scrapped due to local damage.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic making electric mill grinding roller sleeve in mould;
Fig. 2 is the cross-sectional schematic of mounting structure ceramics pole in Split mold;
Fig. 3 is the cross-sectional schematic that Split mold installs that casting resin covers mould upper cover;
Fig. 4 is separate prefabricated the cross-sectional schematic in Split mold;
Fig. 5 is the cross-sectional schematic of separate prefabricated of assembling in 1/2nd unitary mould;
Fig. 6 is unitary mould assembling process schematic diagram;
Fig. 7 is separate prefabricated docking schematic diagram;
Fig. 8 a is the schematic diagram of demarcation strip;
Fig. 8 b is the plan structure schematic diagram of Fig. 8 a;
Fig. 9 is the schematic diagram of the cross section of several common structure ceramics pole;
Figure 10 a-Figure 10 e is the schematic diagram of the assembling form that structural ceramics post is commonly used respectively;
Wherein:
1-structural ceramics post; Separate prefabricated of 2-(being full of slurry and the casting resin had cured); 3-unitary mould; 4-is seated in the casting resin had cured between separate prefabricated and grinding roller sleeve metal base; 5-seal cover; The annular metal base material of 6-electric mill grinding roller sleeve; 7-unitary mould enter slurry interface; The vacuum pump interface of 8-unitary mould; 9-demarcation strip; 10-die side plate; 11-die tip; 12-locates supporting plate; 13-location-plate; 14-counterbore; 15-connecting bolt; 16-mould upper cover; 17-parting seal cover; 18-interface tent; 19-Split mold vacuum pump interface; 20-Split mold enters slurry interface; 21-positioning fixture; 22-bracing member; 23-pole; 24-interface holes.
Detailed description of the invention
See Fig. 1 to Figure 10, all Reference numerals are: structural ceramics post 1, separate prefabricated (being full of slurry and the casting resin had cured) 2, unitary mould 3, be seated in the casting resin 4 had cured between separate prefabricated and grinding roller sleeve metal base, seal cover 5, the annular metal base material 6 of electric mill grinding roller sleeve, unitary mould enter slurry interface 7, the vacuum pump interface 8 of unitary mould, demarcation strip 9, die side plate 10, die tip 11, location supporting plate 12, location-plate 13, counterbore 14, connecting bolt 15, mould upper cover 16, parting seal cover 17, interface tent 18, Split mold vacuum pump interface 19, Split mold enters slurry interface 20, positioning fixture 21, bracing member 22, pole 23 and interface holes 24.
The utility model provides a kind of preparation frock installing complex abrasion-proof erosion layer on the metal base of electric mill grinding roller sleeve and/or millstone sheet additional, and this is prepared frock and comprises unitary mould and Split mold:
Wherein:
Split mold:
Due to when making electric mill grinding roller sleeve, the arrangement of structural ceramics post requires neat in order, and structural ceramics post is packed into casting resin with wanting uniform close in gap each other, therefore it is very difficult for making grinding roller sleeve with unitary mould one-step shaping, and adopt the object of Split mold be exactly in order in a less scope by good order to structural ceramics post, casting resin or junior unit precast body arranged together, make separate prefabricated, thus solve the difficulty making grinding roller sleeve, complete the global formation of final grinding roller sleeve; Junior unit precast body is the one-sided or bilateral with slurry, casting resin being bonded in the orderly structural ceramics post of row's proper alignment, becomes junior unit precast body after solidification; The thickness of slurry bonding casting resin be arrange according to separate prefabricated middle structural ceramics post two between aligned gaps determine, the interface docked between two that can mutually coincide between every two panels is left in junior unit precast body both sides; Junior unit precast body will be installed in Split mold, for making separate prefabricated;
The Split mold of electric mill grinding roller sleeve is taked 360 degree of equal portions segmentations according to doughnut-shaped monolithic mould and makes formation, therefore each separate prefabricated that produces with Split mold is the portion of 360 degree of equal portions segmentations of overall grinding roller sleeve, separate prefabricated that does according to equal portions numeral system, the main body of overall grinding roller sleeve can be butted into; The Split mold of grinding roller sleeve is 1/18th mould, 1/16th mould, 1/12nd mould, 1/10th moulds, 1/8th moulds, 1/6th moulds or 1/4th moulds;
The main composition structural member of the Split mold of grinding roller sleeve has mould upper cover, two die tip, two die side plates, parting seal covers are formed, wherein the way curved surface of the inner surface of the mould upper cover of Split mold is identical with the way curved surface of the inner surface mid portion of doughnut-shaped monolithic mould, four limits of mould upper cover has can coincide with the upper curved surface of two die tip and the upper curved surface of two die side plates respectively curved surface and bolt hole that are connected; The inner side of the die tip of Split mold is processed with the rib corresponding with structural ceramics post and groove, be convenient to the installation of structural ceramics post and the docking between two of separate prefabricated, the connection curved surface and bolt hole that can be connected with mould upper cover end fit are arranged at die tip top, and the connection curved surface and bolt hole that can be connected with parting seal cover end fit are arranged at die tip bottom; The connection curved surface and bolt hole that can be connected with mould upper cover end fit are arranged at die side plate top, and the connection curved surface and bolt hole that can be connected with parting seal cover end fit are arranged at die side plate bottom.
The structure of the Split mold of grinding roller sleeve is: the top of two die side plates and the left and right side of mould upper cover coincide respectively and be connected, and bottom coincide respectively with the left and right side of parting seal cover and is connected; The top of two die tip and the front and back end of mould upper cover coincide respectively and are connected, and bottom coincide respectively with the front and back end of parting seal cover and is connected, and composition mould, for the production of separate prefabricated in the cavity of Split mold; Split mold is provided with into slurry interface and vacuum pump interface;
Unitary mould
Unitary mould is that a cross section is similar to circle hat, oval hat and/or is similar to triangle, trapezoidal doughnut-shaped monolithic mould; For the ease of installing separate prefabricated or unload workpiece, the unitary mould of grinding roller sleeve can not adopt complete unitary mould, needs to split into multiple parts, is then butted into as a whole mould; Unitary mould has two kinds of method for splitting;
The unitary mould of the grinding roller sleeve described in one is that unitary mould is transversely divided into two, and is divided into two circular dies; Then dock and connect into an annular unitary mould; Unitary mould both sides respectively have a seal cover and doughnut-shaped monolithic mould to be tightly connected.The unitary mould of its grinding roller sleeve described in two unitary mould is longitudinally divided into two be divided into two annular 1/2nd moulds, and then two ring concave side are relative to being fastened and connected into a doughnut-shaped monolithic mould; Unitary mould both sides respectively have a seal cover and doughnut-shaped monolithic mould to be tightly connected.
Seal cover in the unitary mould of grinding roller sleeve is the annulus with connector, the outward flange of annulus is processed with the seam that can be connected by bolt seal with the seam on doughnut-shaped monolithic mould, the inward flange of annulus is processed with and can be connected by bolt seal, block the bayonet socket of grinding roller sleeve annular metal base material, the annular metal base material of unitary mould, seal cover, grinding roller sleeve forms an annular hollow annular seal space, in annular seal space, structural ceramics post and casting resin are bonded on the annular metal base material of grinding roller sleeve by slurry, make grinding roller sleeve; Unitary mould is equipped with into slurry interface and vacuum pump interface.
The tooling fixture of Split mold and the tooling fixture of unitary mould:
The tooling fixture of Split mold
The tooling fixture of Split mold comprises for the demarcation strip of fixed structure ceramics pole, location-plate, location supporting plate and interface tent.
The whole front of the location-plate on Split mold, fitly arrange several counterbores in an orderly manner, the shape of these counterbores is identical with the cross section of the structural ceramics post that will install, and the degree of depth is two to three millimeters, the lower end of structural ceramics post can be inserted, the lower end of structural ceramics post is located; The back side of location-plate is provided with the connecting bolt that can be connected with location supporting plate; Conveniently dismantle, location-plate at least needs to be designed to two pieces, then docks use.The effect of the location supporting plate that Split mold uses is fastened on Split mold by location-plate; Connecting bolt on the supporting plate of location on corresponding location-plate is processed with connecting hole, and except location-plate connecting hole, the shape of location supporting plate is identical with the shape of parting seal cover, and location supporting plate can coincide with Split mold and be connected on the position of parting seal cover.
See Fig. 8 a and Fig. 8 b, demarcation strip on Split mold is the laths of metal with multiple draw-in groove above, the shape of draw-in groove and spacing are determined according to structural ceramics post shapes and installing space, the degree of depth of draw-in groove is two to three millimeters, and the thickness of laths of metal is determined by the installing space of two row's structural ceramics posts.
Split mold uses the effect of demarcation strip, is that corresponding location-plate is separated several rows of for the structural ceramics post be inserted on location-plate in counterbore, and the upper end of structural ceramics post is stuck in the draw-in groove on demarcation strip, the upper end of structural ceramics post is located; If first the structural ceramics post with fiberglass braided thing is made junior unit precast body, then when junior unit precast body is loaded Split mold, then do not need demarcation strip.
The effect of the interface tent on Split mold is the casting resin getting rid of separate prefabricated interface, for providing convenience when follow-up separate prefabricated docking.
The purposes of demarcation strip, location-plate and location supporting plate be directly each structural ceramics post is limited in Split mold its should position on, this tooling fixture requires not affect filling casting resin aborning, and is loaded into can control when structural ceramics post no longer moves in casting resin and takes out smoothly.
The tooling fixture of unitary mould
The tooling fixture of unitary mould comprises positioning fixture for fixing separate prefabricated and bracing member.
The effect of the positioning fixture that unitary mould uses is stuck in unitary mould by separate prefabricated; The side of the positioning fixture used has two bolts hole for unitary mould, positioning fixture can be fixed on doughnut-shaped monolithic mould with bolt, the opposite side of positioning fixture is processed with a chuck, for blocking separate prefabricated.
The effect of bracing member used in unitary mould is by again fixing tight for each separate prefabricated the pole one_to_one corresponding with bracing member in the unitary mould that is docking together, to unload positioning fixture carrying out subsequent handling; The bracing member that unitary mould uses has the pole for fixing separate prefabricated, the number of the pole of bracing member is equal with the number of separate prefabricated, one end of the pole of bracing member is fixed on the fixed disk at center, and all poles are in one plane evenly stretched out to surrounding centered by fixed disk, the other end of the pole of bracing member is for withstanding and holding out against separate prefabricated, the pole of bracing member is provided with adjusting bolt, for regulating the elongation of pole.
When carrying out the preparation of abrasion resistant layer based on preparation frock provided by the utility model, its preparation method is:
1) selected structural ceramics post;
1.1) material of structural ceramics post is determined;
Theory thinks that structural ceramics post can use various structural ceramic material to process, but considers the factors such as economical and practical; Conventional has silicon carbide ceramics post, aluminium oxide ceramics post, silicon nitride combined silicon carbide ceramics pole, carborundum in conjunction with cermet post; Main is silicon carbide ceramics post, silicon nitride combined silicon carbide ceramics pole;
1.2) shape of structural ceramics post is determined;
As shown in Figure 9: prism or the cylinder of structural ceramics post to be cross section be polygon or circle; The cross section of structural ceramics post polygonally has shape to be triangle, quadrangle, hexagon and octagon; Conventional cross section is that to mainly contain shape be regular hexagon, Symmetric Orthogonal hexagon, square, rhombus to polygonal structural ceramics post; When the most preferred cross section having a structural ceramics post is quadrangle, the preferred square of cross section of structural ceramics post or rhombus; When the cross section of structural ceramics post is hexagon, the preferred regular hexagon of cross section of structural ceramics post or Symmetric Orthogonal hexagon; For the ease of installing, one end of structural ceramics post can be slightly less than the other end;
See Figure 10 a-Figure 10 e, be the schematic diagram of the assembling form that structural ceramics post is commonly used respectively.
1.3) size of structural ceramics post is determined;
Structural ceramics post is crossed and thick or meticulously all will to be made troubles to production, and the diagonals of polygon on structural ceramics post cross section or the size of round diameter are between 5mm ~ 30mm; Optimal selection is that the size of diagonals of polygon on structural ceramics post cross section or round diameter is between 8mm ~ 25mm; Because installation site is different, the scope of the length of structural ceramics post is very large, and the most frequently used is between 20mm ~ 250mm;
1.4) consumption of structural ceramics post is determined;
The research on maximum utilized quantity of structural ceramics post is structural ceramics post dense arrangement, and dense arrangement is that structural ceramics post gap is each other very little, the slurry only having glass fibre in clearance gap He have cured, and this electric mill grinding roller sleeve is mainly used in the powder of processing rigid material; The minimum amount of structural ceramics post is zero, and that is, separate prefabricated all makes of casting resin, thus reduce the cost of electric mill grinding roller sleeve, under this electric mill grinding roller sleeve operates mainly in low speed environments, for processing the powder of soft material;
2) silicon-carbide particle of silicon-carbide particle as casting resin is chosen;
To choose particle size range be the silicon-carbide particle being greater than F30 is bulky grain; Choosing the silicon-carbide particle of particle size range between F30 ~ F100 is middle particle; Choosing the silicon-carbide particle of particle size range between F100 ~ F220 is granule, the pollution impurity on the silicon-carbide particle surface that removing is chosen; The large, medium and small use proportioning of silicon-carbide particle is arbitrary; Preferably silicon-carbide particle proportioning is large: in: little is 40% ~ 60%:40% ~ 30%:20% ~ 10%;
According to the performance of the thermosetting resin chosen, determine whether to use corresponding surfactant to process silicon-carbide particle surface; If desired process silicon-carbide particle surface, then the kind of surfactant and consumption determine according to the classification of selected thermosetting resin and the surface area of silicon-carbide particle; If do not need, silicon-carbide particle surface is processed, then carry out subsequent step after skipping surfactant treatment step;
3) thermosetting resin and auxiliary material are chosen;
Thermosetting resin is epoxy resin, vinylite, polyimide resin or phenolic resins; During thermosetting resin employing epoxy resin, epoxy resin is E51 ~ E31 epoxy resin or modified epoxy; Vinylite is general vinylite or modified vinyl resin; The consumption of thermosetting resin determines according to the size of silicon-carbide particle and consumption, and auxiliary material choose corresponding curing agent, initator, diluent, defoamer and silicon carbide super micro powder according to the thermosetting resin selected; The particle size range of silicon carbide super micro powder is between 0 ~ 1 μm, and best particle size range is between 0 ~ 0.5 μm; The amount ranges of silicon carbide super micro powder is 0 ~ 2% of thermosetting resin consumption (weight ratio); The consumption of other auxiliary material and kind are determined by the consumption of selected thermosetting resin and kind.
4) selective enhancement material;
Reinforcing material comprises the reinforcing material for structural ceramics post and the reinforcing material for casting resin;
Reinforcing material for structural ceramics post is glass fibre or carbon fiber; For structural ceramics post reinforcing material optimum be glass fibre; Fiber is made into fibrous braid; Fibrous braid is made into cartridge belt shape; Cartridge belt shape braid there is the consent of plug assembling structure ceramics pole; The distance of the consent that the consent of the plug assembling structure ceramics pole on cartridge belt shape braid is adjacent with another is adjustable, and the distance of the consent that the consent on braid is adjacent with another is at 0 ~ 30mm; Preferably 0 ~ 20mm;
Reinforcing material for casting resin is chopped strand; Chopped strand is any one in glass fibre, carbon fiber; First-selected chopped strand is glass fibre; The length of chopped strand is at 0.5 ~ 2.5mm; The preferred length of chopped strand is at 1 ~ 2mm; The consumption of chopped strand is 0 ~ 5% of silicon-carbide particle consumption (weight ratio).
5) thermosetting resin and auxiliary material preparation thermosetting resin slurry is chosen: according to step 3) thermosetting resin chosen and curing agent, initator, diluent, defoamer and silicon carbide super micro powder are knocked down mixing plant mixing, and fully stirring is mixed with slurry; The slurry be mixed with is loaded feeding tank, closes the charging door of feeding tank, open vacuum equipment and vacuumize, reach the vacuum environment of 10 ~ 1KPa in vacuum under, the bubble that removing produces in stirring, then recovers normal pressure stand-by.
6) kind of conventional electric mill has several, the cross section of grinding roller sleeve of more electric mill be similar to circle hat, oval hat and/or be similar to triangle, trapezoidal, the technique of the utility model scheme may be used for various electric mill, and preparation facilities designs round several conventional electric mill, but design theory is the preparation facilities being applicable to other kind electric mill grinding roller sleeve; Metal base, Split mold, unitary mould, the tooling fixture of Split mold and the tooling fixture of unitary mould is got out according to the structural parameters of electric mill grinding roller sleeve;
6.1) require according to the Technology design of grinding roller sleeve: the metal base making grinding roller sleeve; The metal base of grinding roller sleeve is cyclic metal piece, and the medial surface of becket is manufactured with and grinding roller sleeve can be arranged on grinding roller and the frame for movement closely linked together; It is very coarse that becket lateral surface makes, and becket and casting resin can be made to be bonded together tightly;
6.2) need to have made unitary mould and Split mold respectively in producing:
6.2.1) Split mold
Due to when making electric mill grinding roller sleeve, the arrangement of structural ceramics post requires neat in order, and structural ceramics post is packed into casting resin with wanting uniform close in gap each other, therefore it is very difficult for making grinding roller sleeve with unitary mould one-step shaping, and adopt the object of Split mold be exactly in order in a less scope by good order to structural ceramics post, casting resin or junior unit precast body arranged together, make separate prefabricated, thus solve the difficulty making grinding roller sleeve, complete the global formation of final grinding roller sleeve; Junior unit precast body is the one-sided or bilateral with slurry, casting resin being bonded in the orderly structural ceramics post of row's proper alignment, becomes junior unit precast body after solidification; The thickness of slurry bonding casting resin be arrange according to separate prefabricated middle structural ceramics post two between aligned gaps determine, the interface docked between two that can mutually coincide between every two panels is left in junior unit precast body both sides; Junior unit precast body will be installed in Split mold, for making separate prefabricated;
The Split mold of electric mill grinding roller sleeve is taked 360 degree of equal portions segmentations according to doughnut-shaped monolithic mould and makes formation, therefore each separate prefabricated that produces with Split mold is the portion of 360 degree of equal portions segmentations of overall grinding roller sleeve, separate prefabricated that does according to equal portions numeral system, the main body of overall grinding roller sleeve can be butted into; The Split mold of grinding roller sleeve is 1/18th mould, 1/16th mould, 1/12nd mould, 1/10th moulds, 1/8th moulds, 1/6th moulds or 1/4th moulds;
The main composition structural member of the Split mold of grinding roller sleeve has mould upper cover, two die tip, two die side plates, parting seal covers are formed, wherein the way curved surface of the inner surface of the mould upper cover of Split mold is identical with the way curved surface of the inner surface mid portion of doughnut-shaped monolithic mould, four limits of mould upper cover has can coincide with the upper curved surface of two die tip and the upper curved surface of two die side plates respectively curved surface and bolt hole that are connected; The inner side of the die tip of Split mold is processed with the rib corresponding with structural ceramics post and groove, be convenient to the installation of structural ceramics post and the docking between two of separate prefabricated, the connection curved surface and bolt hole that can be connected with mould upper cover end fit are arranged at die tip top, and the connection curved surface and bolt hole that can be connected with parting seal cover end fit are arranged at die tip bottom; The connection curved surface and bolt hole that can be connected with mould upper cover end fit are arranged at die side plate top, and the connection curved surface and bolt hole that can be connected with parting seal cover end fit are arranged at die side plate bottom.
The structure of the Split mold of grinding roller sleeve is: the top of two die side plates and the left and right side of mould upper cover coincide respectively and be connected, and bottom coincide respectively with the left and right side of parting seal cover and is connected; The top of two die tip and the front and back end of mould upper cover coincide respectively and are connected, and bottom coincide respectively with the front and back end of parting seal cover and is connected, and composition mould, for the production of separate prefabricated in the cavity of Split mold; Split mold is provided with into slurry interface and vacuum pump interface;
6.2.2) unitary mould
Unitary mould is that a cross section is similar to circle hat, oval hat and/or is similar to triangle, trapezoidal doughnut-shaped monolithic mould; For the ease of installing separate prefabricated or unload workpiece, the unitary mould of grinding roller sleeve can not adopt complete unitary mould, needs to split into multiple parts, is then butted into as a whole mould; Unitary mould has two kinds of method for splitting;
The unitary mould of the grinding roller sleeve described in one is that unitary mould is transversely divided into two, and is divided into two circular dies; Then dock and connect into an annular unitary mould; Unitary mould both sides respectively have a seal cover and doughnut-shaped monolithic mould to be tightly connected.The unitary mould of its grinding roller sleeve described in two unitary mould is longitudinally divided into two be divided into two annular 1/2nd moulds, and then two ring concave side are relative to being fastened and connected into a doughnut-shaped monolithic mould; Unitary mould both sides respectively have a seal cover and doughnut-shaped monolithic mould to be tightly connected.
Seal cover in the unitary mould of grinding roller sleeve is the annulus with connector, the outward flange of annulus is processed with the seam that can be connected by bolt seal with the seam on doughnut-shaped monolithic mould, the inward flange of annulus is processed with and can be connected by bolt seal, block the bayonet socket of grinding roller sleeve annular metal base material, the annular metal base material of unitary mould, seal cover, grinding roller sleeve forms an annular hollow annular seal space, in annular seal space, structural ceramics post and casting resin are bonded on the annular metal base material of grinding roller sleeve by slurry, make grinding roller sleeve; Unitary mould is equipped with into slurry interface and vacuum pump interface.
6.3) tooling fixture of Split mold and the tooling fixture of unitary mould:
6.3.1) tooling fixture of Split mold
The tooling fixture of Split mold comprises for the demarcation strip of fixed structure ceramics pole, location-plate, location supporting plate and interface tent.
The whole front of the location-plate on Split mold, fitly arrange several counterbores in an orderly manner, the shape of these counterbores is identical with the cross section of the structural ceramics post that will install, and the degree of depth is two to three millimeters, the lower end of structural ceramics post can be inserted, the lower end of structural ceramics post is located; The back side of location-plate is provided with the connecting bolt that can be connected with location supporting plate; Conveniently dismantle, location-plate at least needs to be designed to two pieces, then docks use.The effect of the location supporting plate that Split mold uses is fastened on Split mold by location-plate; Connecting bolt on the supporting plate of location on corresponding location-plate is processed with connecting hole, and except location-plate connecting hole, the shape of location supporting plate is identical with the shape of parting seal cover, and location supporting plate can coincide with Split mold and be connected on the position of parting seal cover.
See Fig. 8 a and Fig. 8 b, demarcation strip on Split mold is the laths of metal with multiple draw-in groove above, the shape of draw-in groove and spacing are determined according to structural ceramics post shapes and installing space, the degree of depth of draw-in groove is two to three millimeters, and the thickness of laths of metal is determined by the installing space of two row's structural ceramics posts.
Split mold uses the effect of demarcation strip, is that corresponding location-plate is separated several rows of for the structural ceramics post be inserted on location-plate in counterbore, and the upper end of structural ceramics post is stuck in the draw-in groove on demarcation strip, the upper end of structural ceramics post is located; If first the structural ceramics post with fiberglass braided thing is made junior unit precast body, then when junior unit precast body is loaded Split mold, then do not need demarcation strip.
The effect of the interface tent on Split mold is the casting resin getting rid of separate prefabricated interface, for providing convenience when follow-up separate prefabricated docking.
The purposes of demarcation strip, location-plate and location supporting plate be directly each structural ceramics post is limited in Split mold its should position on, this tooling fixture requires not affect filling casting resin aborning, and is loaded into can control when structural ceramics post no longer moves in casting resin and takes out smoothly.
6.3.2) tooling fixture of unitary mould
The tooling fixture of unitary mould comprises positioning fixture for fixing separate prefabricated and bracing member.
The effect of the positioning fixture that unitary mould uses is stuck in unitary mould by separate prefabricated; The side of the positioning fixture used has two bolts hole for unitary mould, positioning fixture can be fixed on doughnut-shaped monolithic mould with bolt, the opposite side of positioning fixture is processed with a chuck, for blocking separate prefabricated.
The effect of bracing member used in unitary mould is by again fixing tight for each separate prefabricated the pole one_to_one corresponding with bracing member in the unitary mould that is docking together, to unload positioning fixture carrying out subsequent handling; The bracing member that unitary mould uses has the pole for fixing separate prefabricated, the number of the pole of bracing member is equal with the number of separate prefabricated, one end of the pole of bracing member is fixed on the fixed disk at center, and all poles are in one plane evenly stretched out to surrounding centered by fixed disk, the other end of the pole of bracing member is for withstanding and holding out against separate prefabricated, the pole of bracing member is provided with adjusting bolt, for regulating the elongation of pole.
7) prepare casting resin, by step 2) selected by silicon-carbide particle preparation casting resin; Casting resin comprises and is dry mixed casting resin and half stuff casting resin; Casting resin in use, be dry mixed in casting resin and half stuff casting resin any one or its combination;
7.1) be dry mixed that casting resin is bulky grain carborundum, middle grained silicon carbide, granule carborundum and step 4) in chopped strand put into mixing apparatus respectively and mix;
7.2) half stuff casting resin is bulky grain carborundum, middle grained silicon carbide, granule carborundum and chopped strand get ready respectively, then the thermosetting resin that a part has prepared with curing agent, initator, diluent, defoamer and silicon carbide super micro powder is taken out, first thermosetting resin is mixed with bulky grain carborundum, and then middle grained silicon carbide is mixed into and stirs, finally granule carborundum and chopped strand dropped into and stir, granule carborundum and chopped strand stick on bulky grain and make half stuff casting resin.
8) select step 1) in structural ceramics post, it is tightly filled in step 4) in the orderly cartridge belt shape braid with the establishment of reinforcing material glass fibre consent in; The distance of the consent that the consent of the plug assembling structure ceramics pole on cartridge belt shape braid is adjacent with another can regulate, the size of adjustable range and the size of structural ceramics post, shape and relevant with the abrasion resistance of product; The distance of the consent that the consent on braid is adjacent with another is in 0 ~ 30mm (twice preferably not more than the diagonals of polygon on structural ceramics post cross section used or round diameter size); Optimum consent on braid and the distance between consent are at 0 ~ 20mm; When needing to reserve gap between structural ceramics post, also can reserve gap between the cartridge belt shape fabric that every two are equipped with structural ceramics post, the gap between every two cartridge belt shape fabrics that structural ceramics post is housed is 0 ~ 30mm;
As shown in Figure 2 and Figure 3, use step 6) in tooling fixture the cartridge belt shape fabric that structural ceramics post is housed is fixed on step 6) in 6.2.1) described in Split mold in; Use step 6) in 6.2.1) described in the part mold upper cover of Split mold, two die tip, two die side plates, parting seal cover and in step 6) in 6.3.1) described in the tooling fixture demarcation strip of Split mold, two location-plates, the location supporting plate first step that completes structural ceramics post install; First two location-plate connecting bolts are installed on the convex surface being connected to location supporting plate, be connected with the surrounding on the supporting plate convex surface of location with the bottom of two die side plates the bottom of two die tip, so latter two die tip and two die side plates are interconnected again again; After connecting, locate in the counterbore lower end of the structural ceramics post with fiberglass braided thing being inserted by row location-plate, the upper end demarcation strip of structural ceramics post is separated by row, and locate in the draw-in groove upper end of structural ceramics post being stuck in demarcation strip; (now locating supporting plate in bottom); Be get row's structural ceramics post to insert in the counterbore of location-plate by its underpart in operation, then get a demarcation strip and be stuck in the draw-in groove of demarcation strip by the upper end of structural ceramics post, the two ends load of demarcation strip is on the edge on Split mold top;
9) by step 7) prepare the casting resin that obtains and be seated in step 8) described in Split mold in, the method of filling is inserted from the gap of staggering between the demarcation strip and structural ceramics post on Split mold top casting resin, if gap is too little, can adopt and remove a demarcation strip, with the gap that screwdriver separates between two row's structural ceramics posts, casting resin is inserted, recharge after filling up next row, filling is until all fill up rear removal demarcation strip so by row, installs mould upper cover; Then Split mold is overturn, mould upper cover is made to be in bottom, first unload location supporting plate, unload location-plate again, casting resin is smash and is compressed close by the instrument in the gap filling between two row's structural ceramics posts with, installs interface tent, finally fill whole Split mold with casting resin and smash compress close, again parting seal cover is installed, upset Split mold;
10) by vavuum pump and step 5) in feeding tank be connected to step 9) in Split mold on enter in slurry interface and vacuum pump interface; Close feeding tank feeding valve, open vavuum pump, open vacuum valve, when vacuum reaches 10 ~ 1KPa, under this vacuum environment of maintenance, slowly open feeding tank feeding valve, feed batch can pressurization (the carrying pressure according to Split mold) simultaneously and the slurry prepared is injected Split mold lentamente, until after filling Split mold, close vacuum valve, but also need to keep pressure in feeding tank constant.
11) as shown in Figure 4, under the prerequisite that pressure is constant in maintenance feeding tank, heating impel slurry curing (due to major part thermosetting resin cured time shrink larger, so when heating impels slurry curing, will from farthest away from Split mold enter slurry interface heating so that required supplementary resin when feeding tank ceaselessly can supplement slurry curing); Heating-up temperature is between 50 DEG C ~ 200 DEG C, and preferred heating-up temperature is 80 DEG C ~ 120 DEG C; Be heating and curing between 1 hour ~ 5 hours time; Pressurization is stopped after slurry curing; Be slow cooling to room temperature, remove Split mold, complete the making of separate prefabricated;
12) installation steps 11 in unitary mould) obtain separate prefabricated time, all each two interface end of separate prefabricated that will participate in one-piece machine member making to be carried out connection handling, the interface of separate prefabricated can be plane interface also can be the excuse that alternately misplaces, and these two kinds of interfaces can directly dock; As shown in Figure 7, the another kind of interface of separate prefabricated is counterpart interface, and this interface needs to fill in a structural ceramics post in each counterpart interface holes of interface; If in unitary mould use step 6) in 6.2) described in two circular dies time, total separate prefabricated to be divided into two, be contained in two circular dies respectively, as shown in Figure 5, each separate prefabricated both sides step 6) in 6.3) described in positioning fixture fix respectively, after fixing, two circular dies are docking together; Then as shown in Figure 6, by step 6) in 6.3) bracing member is again fixing tight by each separate prefabricated the pole one_to_one corresponding with bracing member, fix the positioning fixture that just can unload side tightly, and fill previous step 6) in 6.2) described in seal cover, keep flat whole unitary mould, the side of with closure is placed on bottom;
In unitary mould, now first in each counterpart interface holes at the docking port place of separate prefabricated, fill in a structural ceramics post; Step 7 is loaded in gap again in separate prefabricated gap between the two and between separate prefabricated and unitary mould) casting resin, fill and smash compress close, unload bracing member, as shown in Figure 1, install step 6) in 6.1) the annular metal base material of grinding roller sleeve, get step 7) casting resin is filled in the connection gap between separate prefabricated and the annular metal base material of grinding roller sleeve, until fill and smash compress close, then shed second half positioning fixture and fill up whole unitary mould with casting resin and smash compress close, install another one seal cover;
13) slurry is injected lentamente until fill unitary mould;
By vavuum pump and step 5) in feeding tank be connected to step 6) in unitary mould on enter in slurry interface and vacuum pump interface; Close feeding tank feeding valve, open vavuum pump, open vacuum valve, when vacuum reaches 10 ~ 1KPa, under this vacuum environment of maintenance, slowly open feeding tank feeding valve, simultaneously according to the carrying pressure feeding batch can pressurization of unitary mould, by step 5) slurry for preparing injects unitary mould, lentamente until after filling unitary mould, close vacuum valve, but also need to keep pressure in feeding tank constant.
14) under the prerequisite that pressure is constant in maintenance feeding tank, heating impel the slurry curing in unitary mould (due to major part thermosetting resin cured time shrink larger, so when heating impels slurry curing, will from farthest away from unitary mould enter slurry interface heating so that required supplementary resin when feeding tank ceaselessly can supplement slurry curing); Heating-up temperature is between 50 DEG C ~ 200 DEG C, and preferred heating-up temperature is 80 DEG C ~ 120 DEG C; Be heating and curing between 1 hour ~ 5 hours time; Pressurization is stopped after slurry curing; Be slow cooling to room temperature, remove unitary mould, complete the making of one integral piece electric mill grinding roller sleeve.
Claims (2)
1. on the metal base at electric mill grinding roller sleeve and/or millstone sheet, install a preparation frock for complex abrasion-proof erosion layer additional, it is characterized in that: described preparation frock comprises the Split mold for making separate prefabricated and the unitary mould for completing the making of overall grinding roller sleeve;
Described Split mold comprises location supporting plate, location-plate, die side plate, Split mold vacuum pump interface, Split mold enter slurry interface, die tip, mould upper cover and the demarcation strip for fixed structure ceramics pole; Described location-plate is arranged on the supporting plate of location; Described location-plate is provided with counterbore; The lower end of structural ceramics post is inserted in the counterbore of location-plate, and the upper end of structural ceramics post is stuck in the groove of demarcation strip; Described die side plate and die tip are co-located on the supporting plate of location; Described die side plate and die tip are two groups respectively; Described die side plate and die tip and location supporting plate are formed with the space structure of a cavity jointly; Described mould upper cover is arranged on the top of space structure and fixes with die side plate and die tip respectively;
Described parting seal cover unload location-plate and location supporting plate be placed on space structure bottom and be fixedly formed with the space structure of a cavity with die side plate and die tip respectively; Described vacuum pump interface is arranged on tops on mould and connects with space structure inside; Described Split mold enters slurry interface and to be arranged on bottom parting seal cover and to connect with space structure inside;
Described unitary mould comprises bracing member, pole, separate prefabricated is stuck in the vacuum pump interface entering slurry interface and unitary mould of the positioning fixture in unitary mould, the upper shell being fastened on separate prefabricated outer surface and lower house, unitary mould; Described bracing member alternately fixes separate prefabricated respectively by pole and positioning fixture; Described upper shell and lower house fasten formation hollow structure mutually; Separate prefabricated splicing is placed in hollow structure; The vacuum pump interface entering slurry interface and unitary mould of described unitary mould to be separately positioned on lower house and upper shell and to connect with hollow structure; The inner curve of mould upper cover of Split mold is identical with the inner curve of the lower house of unitary mould and the inner curve of upper shell.
2. preparation frock according to claim 1, is characterized in that: described pole is provided with the adjusting bolt for regulating strut lengths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520321067.5U CN204748372U (en) | 2015-05-18 | 2015-05-18 | Install compound wear -resisting preparation frock of losing layer additional on metal substrate of electric mill grinding roller cover and/or mill tile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520321067.5U CN204748372U (en) | 2015-05-18 | 2015-05-18 | Install compound wear -resisting preparation frock of losing layer additional on metal substrate of electric mill grinding roller cover and/or mill tile |
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| Publication Number | Publication Date |
|---|---|
| CN204748372U true CN204748372U (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520321067.5U Withdrawn - After Issue CN204748372U (en) | 2015-05-18 | 2015-05-18 | Install compound wear -resisting preparation frock of losing layer additional on metal substrate of electric mill grinding roller cover and/or mill tile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104802105A (en) * | 2015-05-18 | 2015-07-29 | 朱胜利 | Process for additionally arranging composite anti-abrasion layer(s) on metal base material(s) of grinding roller sleeve or/and grinding disk tile of electric grinder and preparation tool |
-
2015
- 2015-05-18 CN CN201520321067.5U patent/CN204748372U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104802105A (en) * | 2015-05-18 | 2015-07-29 | 朱胜利 | Process for additionally arranging composite anti-abrasion layer(s) on metal base material(s) of grinding roller sleeve or/and grinding disk tile of electric grinder and preparation tool |
| CN104802105B (en) * | 2015-05-18 | 2017-08-29 | 朱胜利 | Install the technique of complex abrasion-proof erosion layer additional on metal base and prepare frock |
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