CN104001373B - Prepare special sintering equipment and the method for tabular sintered body - Google Patents
Prepare special sintering equipment and the method for tabular sintered body Download PDFInfo
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- CN104001373B CN104001373B CN201410240253.6A CN201410240253A CN104001373B CN 104001373 B CN104001373 B CN 104001373B CN 201410240253 A CN201410240253 A CN 201410240253A CN 104001373 B CN104001373 B CN 104001373B
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Abstract
The invention discloses and a kind ofly prepare the special sintering equipment of tabular sintered body and employ the method for this device, improve product sintering quality.This special sintering equipment comprises vertical board shape groove, groove lid and the groove lid fixture be made up of exotic material, described vertical board shape groove comprises vertical board shape groove body, is arranged at vertical board shape groove intrinsic plate shape deep trouth chamber and is arranged at the preventing hot deformation reinforcement on the relative two plate faces of vertical board shape groove body respectively, the periphery in plate shape deep trouth chamber and bottom lock and opening are positioned at the top of vertical board shape groove body, be fixed on vertical board shape groove body by groove lid fixture after groove lid coordinates with the opening in this plate shape deep trouth chamber, groove covers interval and is furnished with steam vent.This device is used for carrying out constraint sintering to the pre-formed slab preparing tabular sintered body, prevents pre-formed slab from deforming at high operating temperatures, improves the product quality of tabular sintered body.
Description
Technical field
The present invention relates to tabular sintered body and technology of preparing thereof, particularly relate to sintered porous material filter and technology of preparing thereof.
Background technology
Sintered porous material filter element is generally made into tubulose, claims sintered porous material screen pipe.Sometimes, sintered porous material filter element also makes tabular, claims sintered porous material filter.Such as, the filter element that some vacuum filters adopt is just fan-shaped sintered ceramic porous material filter.
Current sintered porous material filter has following three class formations and preparation method haply: the first kind is injection forming, namely the ceramic filter substrate with hollow structure is obtained by slip casting, and in cavity filling support particles, form through sintering, and then apply to filter top layer on its surface, disclosed in CN1198357A, namely a kind of ceramic filtering board for separating solid from liquid and preparation method belong to this type of; Equations of The Second Kind is by the filter of involutory for two panels bonding acquisition hollow structure after collapsible mould pressing formation, namely obtain by mold pressing the micropore ceramics monolithic that wears raised support rib, one side is plane, then by involutory for two panels bonding, its technological process is generally batching, mold pressing monolithic, burns till, plane machining, bonding, fitting attachments, or batching, mold pressing monolithic, bonding, burn till, plane machining, fitting attachments, as described in CN1390623A, namely microporous ceramic filter plate belongs to this type of; 3rd class is the filter element disclosed in CN1486212A and manufacture method thereof, that at least one core material for desired recessed region is set in ceramic mixture when mold pressing, be pressed into base, then through high temperature sintering, be used in the core material in recessed region by after-flame, thus obtain continuous print filtering surface and required hollow duct substantially, then obtain filter working lining by soaking paste, injection, pouring type, again obtain sintering microporous layer through sintering.
The shortcoming of the above-mentioned first kind is: for ensureing that filter has enough mechanical strengths, usually need adopt the ceramic particle compared with small particle diameter, such gained micropore is tiny, and filter flow resistance can be caused to increase; Secondly, grouting method is shaping can only obtain the substantially equal ducted body of peripheral wall surfaces, and owing to placing restrictions on by suction wall thickness, two side seems relatively thin, proceeds to sidewall tensile strength lower, in use often causes filter root that cracking occurs and even fractures; Besides, hollow support is for particle packing supports, and resistance of water drainage is comparatively large, affects filter efficiency and production capacity.The shortcoming of Equations of The Second Kind is: the technological process of production is longer, and production efficiency is not high, and especially involutory bonding not only work efficiency is low, but also can cause many defects, as bonding agent consumption and bonding thrust uneven, the cracking of matrix can be caused; Inner unnecessary binding agent can produce crude protrusion in raised support rib side, and occupying runner increases resistance of water drainage; Besides, in use, bonding force also easily occurs and does not ftracture by force, this type of cracking accounts for about 5% to bonding product, and dissymmetrical structure, anti-suction alternate stress fatigue strength is low, and service life is short.The shortcoming of above-mentioned 3rd class is: global density exists larger difference, and particularly two filter face connecting portion loose densities are low, have a strong impact on substrate overall mechanical strength, and in the course of the work, suction and recoil alternate stress, easily fatigue cracking occur and scrap; But also likely in sintering process, because filter each several part density is different, and deform, even ftracture, cause yield rate to reduce.
Summary of the invention
It is all good that the technical problem that first the present invention will solve is to provide a kind of structural strength, filter efficiency, and be convenient to the sintered porous material filter of manufacture and the prefabricated hollow slab for the preparation of this filter.
The technical problem of its secondary solution of the present invention is to provide a kind of being convenient to and manufactures the isostatic pressing mold preparing sintered porous material filter of above-mentioned prefabricated hollow slab and utilize the method preparing sintered porous material filter of this mould.
The technical problem that the present invention further will solve is to provide a kind of for preparing the special sintering equipment of tabular sintered body to what include but not limited to that above-mentioned prefabricated hollow slab sinters and employ the method for this device, improves product sintering quality.
Sintered porous material filter of the present invention comprises by sintering diamond bit or the filter body that is made up of sintered ceramic porous material, described filter body is hollow platy structure, this filter body carries out sintering by the prefabricated hollow slab of powder materials compression molding to make, one edge of this prefabricated hollow slab is provided with long and narrow internal mold and looses core mouth, in the inner chamber of prefabricated hollow slab, this mouth of loosing core relative is provided with the reinforcement connecting the relative two plate faces of this prefabricated hollow slab, described mouth of loosing core, reinforcement Integral mold when this prefabricated hollow slab of compression molding is molded on this prefabricated hollow slab, described filter body is provided with the sealing strip of this mouth of loosing core closed, sealing bar or filter body are also provided with the outlet with the conducting of filter chamber body.Because mouth of loosing core, the reinforcement Integral mold when this prefabricated hollow slab of compression molding is molded on this prefabricated hollow slab, after compression molding internal mold (inner chamber, reinforcement, mouth of loosing core for moulding prefabricated hollow slab) from loose core mouth extract out and the demoulding, sintered by prefabricated hollow slab the filter body made installs described sealing strip after sintered porous material filter then substantially make.This sintered porous material filter can have higher structural strength compared to existing several filter, easily ensures filter efficiency, and is convenient to manufacture.
As a kind of embody rule example of above-mentioned sintered porous material filter, described filter body is trapezoidal or fan-shaped platy structure, the top margin portion that it comprises linearly shape or the bottom side portion in circular arc, be oppositely arranged with described bottom side portion and the left and right sides edge being connected bottom side portion and top margin portion respectively, extended along this bottom side portion in the bottom side portion that described sealing strip is positioned at this filter body, described outlet is arranged in top margin portion, this outlet with loose core mouth, reinforcement in the lump when compression molding prefabricated hollow slab Integral mold molded on prefabricated hollow slab.The sintered porous material filter of this application example can be used to replace the fan-shaped sintered ceramic porous material filter that disc vacuum filter uses.Wherein, as a kind of preferred structure of its reinforcement, described reinforcement comprises at least one strip reinforcement, and one end of this strip reinforcement and the medial surface in described top margin portion are connected as a single entity, and the other end is loosed core in region that direction extends near bottom side portion along internal mold.Further, described reinforcement comprises two and is parallel to each other and the described strip reinforcement be symmetrical set in the inner chamber of filter body.
Above-mentioned sealing strip can be formed by stainless steel or by the material identical with filter body.In addition, described sealing strip can adopt welding or be adhered to the mouth place of loosing core of filter body.In addition, filter body is preferably made up of sintering Ti-Al dual alloy billet porous material or sintering Fe-Al dual alloy billet porous material.
Prepare the prefabricated hollow slab of above-mentioned sintered porous material filter, by powder materials compression molding, one edge is provided with long and narrow internal mold and looses core mouth, in its inner chamber, this mouth of loosing core relative is provided with the reinforcement connecting relative two plate faces on this prefabricated hollow slab, described in mouth, the reinforcement Integral mold when compression molding prefabricated hollow slab of loosing core molded on this prefabricated hollow slab.
This prefabricated hollow slab can be trapezoidal or fan-shaped platy structure, the top margin portion that it comprises linearly shape or the bottom side portion in circular arc, be oppositely arranged with described bottom side portion and the left and right sides edge being connected bottom side portion and top margin portion respectively, extended along this bottom side portion in the bottom side portion that described mouth of loosing core is positioned at this prefabricated hollow slab, described top margin portion is provided with the outlet with the conducting of prefabricated hollow slab inner chamber, this outlet with loose core mouth, reinforcement in the lump when compression molding prefabricated hollow slab Integral mold molded on prefabricated hollow slab.In addition, in this prefabricated hollow slab, as a kind of concrete structure of its reinforcement, described reinforcement comprises two and is parallel to each other and the strip reinforcement be symmetrical set in the inner chamber of prefabricated hollow slab, one end of strip reinforcement and the medial surface in described top margin portion are connected as a single entity, and the other end is loosed core in region that direction extends near bottom side portion along internal mold.
The present invention prepares the isostatic pressing mold of sintered porous material filter, this mould comprises outer form unit, interior form unit, bottom envelope form unit and top envelope form unit, described outer form unit comprises the hollow sheeting shape cover be made up of elastomeric material, this hollow sheeting shape is arranged with top mouth and end mouth, and described top mouth and end mouth seal form unit and bottom respectively and seal form unit and be tightly connected with top; Described interior form unit comprises the suitable central layer of the inner chamber that overlaps with hollow sheeting shape, mold cavity is formed between central layer, hollow sheeting shape cover, bottom envelope form unit and top envelope form unit, the bottom location and installation of central layer is on the envelope form unit of bottom, central layer top near outer form unit top mouth and be provided with the reinforcement shaping groove extended in central layer, after shaping by central layer from hollow sheeting shape overlap mouth is outside at the end time extract out time, do not hinder central layer to loose core motion by the reinforcement that described reinforcement shaping groove is shaping.Can carry out isostatic compaction to the above-mentioned sintered porous material filter of the present invention by this mould, thus in forming process, guarantee that the overall pressurized of powder materials is even, Density Distribution is even, improves filter effect and the structural strength of sintered porous material filter further.
Employ the method that sintered porous material filter prepared by above-mentioned mould, its step comprises: 1) inserted by powder materials in above-mentioned isostatic pressing mold, and mechanical jolt ramming, make powder materials fully, uniform filling in mold cavity, then the isostatic pressing mold assembled is put into iso-static pressure shaping machine compressing; 2) take out from mould and obtain a prefabricated hollow slab, one edge of this prefabricated hollow slab is formed with long and narrow internal mold by compression molding and looses core mouth, and in its inner chamber, this mouth of loosing core relative forms the reinforcement connecting relative two plate faces on this prefabricated hollow slab; 3) prefabricated hollow slab is put into sintering furnace to sinter, obtain by sintering diamond bit or the filter body that is made up of sintered ceramic porous material after cooling, the sealing strip of mouth of loosing core described in being used for closing is installed subsequently on this filter body.Aforesaid sintered porous material filter can be produced by the method.
Above-mentioned preparation in the method for sintered porous material filter can also use the following special sintering equipment preparing tabular sintered body, thus constraint sintering is carried out to prefabricated hollow slab, prevent prefabricated hollow slab from deforming at high operating temperatures, improve the product quality of sintered porous material filter.Certainly, this special sintering equipment also may be used for sintering other tabular sintered bodies except sintered porous material filter.This special sintering equipment comprises vertical board shape groove, groove lid and the groove lid fixture be made up of exotic material, described vertical board shape groove comprises vertical board shape groove body, is arranged at vertical board shape groove intrinsic plate shape deep trouth chamber and is arranged at the preventing hot deformation reinforcement on the relative two plate faces of vertical board shape groove body respectively, the periphery in plate shape deep trouth chamber and bottom lock and opening are positioned at the top of vertical board shape groove body, be fixed on vertical board shape groove body by groove lid fixture after groove lid coordinates with the opening in this plate shape deep trouth chamber, groove covers interval and is furnished with steam vent.
The concrete grammar using this special sintering equipment to prepare tabular sintered body is: step comprises 1) heat transfer, the constraint material of certain altitude is first laid in the bottom in the plate shape deep trouth chamber of special sintering equipment, then will to be placed on bottom thermal transfer, constraint material in the pre-formed slab load plate shape deep trouth chamber of preparing tabular sintered body, and to make pre-formed slab and plate shape deep trouth cavity wall keep setpoint distance; 2) in plate shape deep trouth chamber, heat transfer, constraint material is poured into from the opening in plate shape deep trouth chamber further, whole pre-formed slab is submerged in heat transfer, constraint material and is kept by this heat transfer, constraint material, mechanical jolt ramming make heat transfer, constraint material abundant, be uniformly filled in around pre-formed slab; 3) mounting groove lid groove lid and vertical board shape groove body being fixed by groove lid fixture, and then the special sintering equipment installed is put into sintering furnace sinter, coming out of the stove after sintering and taking out from special sintering equipment sinters by pre-formed slab the tabular sintered body formed.
To part provide in the following description below in conjunction with the drawings and specific embodiments aspect that the present invention is described further, the present invention adds and advantage, part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Fig. 1 is the structural representation of sintered porous material filter detailed description of the invention of the present invention.
Fig. 2 be in Fig. 1 A-A to sectional view.
Fig. 3 is the structural representation that the present invention prepares the isostatic pressing mold detailed description of the invention of sintered porous material filter.
Fig. 4 be in Fig. 3 A-A to sectional view.
Fig. 5 is the structural representation by the prefabricated hollow slab after mould compression molding shown in Fig. 3,4.
Fig. 6 is the structural representation that the present invention prepares the special sintering equipment (non-mounting groove lid) of tabular sintered body.
Fig. 7 be in Fig. 6 A-A to sectional view.
Fig. 8 is Fig. 6, the perspective view of special sintering equipment shown in 7.
Fig. 9 is the structural representation in sintering equipment use procedure special shown in Fig. 8.
Figure 10 be in Fig. 9 A to structural representation.
Detailed description of the invention
As Fig. 1, shown in 2 and 5, sintered porous material filter comprises by sintering diamond bit or the filter body 100 that is made up of sintered ceramic porous material, described filter body 100 is hollow platy structure, this filter body 100 carries out sintering by the prefabricated hollow slab 100Y of powder materials compression molding and makes, one edge of this prefabricated hollow slab 100Y is provided with long and narrow internal mold and looses core mouth 110, the reinforcement 120 in these relative two plate faces of mouth 110 company of being provided with this prefabricated hollow slab 100Y of loosing core relative in the inner chamber of prefabricated hollow slab 100Y, described mouth 110 of loosing core, reinforcement 120 Integral mold when this prefabricated hollow slab of compression molding 100Y is molded on this prefabricated hollow slab 100Y, described filter body 100 is provided with the sealing strip 140 of this mouth 110 of loosing core closed, sealing bar 140 (or on filter body 100) is also provided with the outlet 190 with the conducting of filter body 100 inner chamber.Form because filter body 100 is fired by prefabricated hollow slab 100Y, therefore the structure of filter body 100 accompany in the structure of prefabricated hollow slab 100Y, namely the filter body 100 shown in Fig. 1 still exists loose core mouth 110, reinforcement 120, and this reinforcement 120 connects the relative two plate faces 180 (as Fig. 2) of filter body 100.Because whole prefabricated hollow slab 100Y is that stamping of powder is shaping, and the inner chamber of prefabricated hollow slab 100Y is provided with the molded reinforcement of Integral mold 120, simultaneously the obstruction of reinforcement 120 fluid motion is less, thus the structural strength of above-mentioned sintered porous material filter and filter efficiency higher.
The profile of this sintered porous material filter can design according to specific requirement, such as, can be rectangle, circle etc.In disc type filter, employing a kind of fan-shaped screen plate at present, in order to substitute this fan-shaped screen plate, above-mentioned sintered porous material filter can be designed to the shape similar with this fan-shaped screen plate.As shown in Figure 1, filter body 100 is designed to trapezoidal or fan-shaped platy structure, and it comprises linearly shape or the bottom side portion in circular arc 150, and (when bottom side portion 150 is for linear, filter body 100 is trapezoidal; When bottom side portion 150 is circular arc, filter body 100 is fan-shaped), the top margin portion 160 that is oppositely arranged with described bottom side portion 150 and be connected the left and right sides edge 170 (being obviously hypotenuse) in bottom side portion 150 and top margin portion 160 respectively, extended along this bottom side portion 150 in the bottom side portion 150 that described sealing strip 150 is positioned at this filter body 100, described outlet 190 is arranged in top margin portion 160; In addition, for convenience of the manufacture of sintered porous material filter, this outlet 190 with loose core mouth 110, reinforcement 120 in the lump when compression molding prefabricated hollow slab 100Y Integral mold molded on prefabricated hollow slab 100Y.As shown in Fig. 1,2 and 5, in the filter body 100 of above-mentioned trapezoidal or fan-shaped platy structure, the demoulding is easy to and the higher structure of support strength as reinforcement 120 a kind of, this reinforcement 120 comprises at least one strip reinforcement 120, one end of this strip reinforcement 120 and the medial surface in described top margin portion 160 are connected as a single entity, and the other end is loosed core in region that direction extends near bottom side portion 150 along internal mold.Reinforcement 120 preferably includes two and is parallel to each other and the described strip reinforcement 120 be symmetrical set in the inner chamber of filter body 100.
The filter body 100 of trapezoidal with above-mentioned or fan-shaped platy structure is corresponding, as shown in Figure 5, the prefabricated hollow slab preparing this filter body 100 is equally also trapezoidal or fan-shaped platy structure, it comprises linearly shape or the bottom side portion 150 in circular arc, the top margin portion 160 be oppositely arranged with described bottom side portion 150 and be connected the left and right sides edge 170 (for hypotenuse) in bottom side portion 150 and top margin portion 160 respectively, extended along this bottom side portion 150 in the bottom side portion 150 that described mouth 110 of loosing core is positioned at this prefabricated hollow slab, described top margin portion 160 is provided with the outlet 190 with the conducting of prefabricated hollow slab inner chamber, this outlet 190 and mouth 110 of loosing core, reinforcement 120 in the lump when compression molding prefabricated hollow slab Integral mold molded on prefabricated hollow slab.Wherein, described reinforcement 120 includes two and is parallel to each other and the strip reinforcement 120 be symmetrical set in the inner chamber of prefabricated hollow slab, one end of strip reinforcement 120 and the medial surface in described top margin portion 160 are connected as a single entity, and the other end is loosed core in region that direction extends near bottom side portion 150 along internal mold.
Above-mentioned sintered porous material filter is prepared by following methods: first, powder materials is inserted in an isostatic pressing mold, and mechanical jolt ramming, make powder materials fully, uniform filling in mold cavity, then the isostatic pressing mold assembled is put into iso-static pressure shaping machine compressing; Secondly, take out from mould and obtain prefabricated hollow slab 100Y, one edge of this prefabricated hollow slab 100Y is formed with long and narrow internal mold by compression molding and looses core mouth 110, and in its inner chamber, this mouth 110 of loosing core relative forms the reinforcement 120 connecting relative two plate faces on this prefabricated hollow slab; After this, prefabricated hollow slab 100Y is put into sintering furnace and sinters, after cooling, obtain filter body 100, the sealing strip 140 of mouth 110 of loosing core described in being used for closing is installed subsequently on this filter body 100.Wherein, as Fig. 3,4, above-mentioned isostatic pressing mold structure specifically comprises outer form unit 210, interior form unit 220, bottom envelope form unit 230 and top envelope form unit 240, described outer form unit 210 comprises the hollow sheeting shape cover 211 be made up of elastomeric material, this hollow sheeting shape cover 211 is provided with top mouth and end mouth, and described top mouth and end mouth seal form unit 240 and bottom respectively and seal form unit 230 and be tightly connected with top, described interior form unit 220 comprises the suitable central layer 221 of inner chamber overlapping 211 with hollow sheeting shape, central layer 221, hollow sheeting shape cover 211, mold cavity is formed between bottom envelope form unit 230 and top envelope form unit 240, the bottom location and installation of central layer 221 is on the envelope form unit 230 of bottom, central layer 221 top near outer form unit 210 top mouth and be provided with in central layer 221 extend reinforcement shaping groove 221a, after shaping by central layer 221 from hollow sheeting shape cover 211 mouth is outside at the end time extract out time, central layer 221 is not hindered to loose core motion by the reinforcement that described reinforcement shaping groove 221a is shaping.
As shown in Figure 3,4, because prefabricated hollow slab 100Y to be prepared is aforesaid trapezoidal or fan-shaped platy structure, therefore, in this isostatic pressing mold, described central layer 221 is isosceles trapezoidal structure, bottom it, location and installation is on the envelope form unit 230 of bottom, top margin is provided with the shaping backstay 221b raised up, it is suitable that locating hole corresponding in form unit 240 is sealed at upper end and the top of this shaping backstay 221b, the inner side of described hollow sheeting shape cover 211 be provided with respectively with skew wall 211a in the left and right side parallel, spaced-apart certain distance of central layer 221.Above-mentioned shaping backstay 221b had both played the positioning action to central layer 221, the outlet 19 simultaneously also on moulding prefabricated hollow slab 100Y.In addition, when the reinforcement 120 in prefabricated hollow slab 100Y comprises at least one strip reinforcement 120, one end of this strip reinforcement 120 and the medial surface in described top margin portion 160 are connected as a single entity, the other end along internal mold loose core direction extend in the region near bottom side portion 150 time, accordingly, reinforcement shaping groove 221a will comprise same quantity and the elongated slot paralleled with the direction of loosing core of central layer 221.One preferably designs: shaping backstay 221b is positioned on the center line of central layer 221, reinforcement shaping groove 221a comprises the described elongated slot that two are symmetricly set on the shaping backstay 221b left and right sides, like this, namely form two in shaping prefabricated hollow slab 100Y to be parallel to each other and the described strip reinforcement 120 be symmetrical set in the inner chamber of prefabricated hollow slab 100Y, and outlet 19 is just between two strip reinforcements 120.
Further as shown in Figure 3,4, in above-mentioned mould, the concrete structure of described bottom envelope form unit 230 comprises the rigid base 231 that is provided with central layer locating slot and to be arranged on above rigid base 231 and to overlap the bottom rubber seal plug 232 between 211 at central layer 221 and hollow sheeting shape.Simultaneously, the concrete structure of described top envelope form unit 240 comprises rigid cover plate 241 and is arranged on the top rubber sealing-plug 242 below rigid cover plate 241, rigid cover plate 241 and top rubber sealing-plug 242 formed one to clog in the top mouth that hollow sheeting shape overlaps 211 and with the envelope die body of its adaptation.Bottom envelope form unit 230 seals in form unit 240 with top the structure all employing rigid member (as steel component) and add rubber seal plug, both ensure that sealing reliability, and also ensure that integral rigidity and the intensity of mould simultaneously.When upper end and the top of described shaping backstay 221b seal locating hole corresponding in form unit 240 suitable when, be preferably only located on top rubber sealing-plug 242 with the locating hole of shaping backstay 221b upper end adaptation in the envelope form unit 240 of top.In addition, outer form unit 210 also can comprise and is arranged on the rigidity clamping plate 212 that hollow sheeting shape overlaps 211 outer surfaces, improves the integral rigidity of mould further, guarantees Forming Quality.In Fig. 3,4 mould two ends up and down outside also respectively tight cover have rubber sealing boot 213, when preventing isostatic compaction further, pressure oil infiltrates mould and creates contamination of products.
Above-mentionedly prepare in sintered porous material filter method, also can use a kind of special sintering equipment preparing tabular sintered body.As shown in Fig. 6 to 10, this device comprises the vertical board shape groove 310 (such as vertical board shape groove 310 entirety is made up of high temperature resistant stainless steel) be made up of exotic material, groove lid 320 and groove lid fixture 330, described vertical board shape groove 310 comprises vertical board shape groove body 311, be arranged at the plate shape deep trouth chamber 312 in vertical board shape groove body 311 and be arranged at the preventing hot deformation reinforcement 313 on the relative two plate face 311a of vertical board shape groove body 311 respectively, the periphery in plate shape deep trouth chamber 312 and bottom lock and opening are positioned at the top of vertical board shape groove body 311, be fixed on vertical board shape groove body 311 by groove lid fixture 330 after groove lid 320 coordinates with the opening in this plate shape deep trouth chamber 312, on groove lid 320, interval is furnished with steam vent 321.Groove lid 320 preferably and vertical board shape groove 310 adopt same material to make, in case cause damage because thermal coefficient of expansion is different between groove lid 320 from vertical board shape groove 310.Before sintering, heat transfer, constraint material (such as aluminium oxide powder) of certain altitude is first laid in the bottom in the plate shape deep trouth chamber 312 of this special sintering equipment, then will be placed on bottom thermal transfer, constraint material in pre-formed slab (above-mentioned prefabricated hollow slab 100Y) the load plate shape deep trouth chamber 312 of preparing tabular sintered body, and make pre-formed slab and plate shape deep trouth chamber 312 inwall keep setpoint distance; Then, in plate shape deep trouth chamber 312, heat transfer, constraint material is poured into further from the opening in plate shape deep trouth chamber 312, whole pre-formed slab is submerged in heat transfer, constraint material and is kept by this heat transfer, constraint material, mechanical jolt ramming make heat transfer, constraint material abundant, be uniformly filled in around pre-formed slab; After this, groove lid 320 and vertical board shape groove body 311 are also fixed by groove lid fixture 330 by mounting groove lid 320, the more special sintering equipment installed is put into sintering furnace sinter, and come out of the stove and take out filter body 100 from special sintering equipment after sintering; Before mounting groove lid 320, the mounting groove lid 320 again after being covered by high temperature resistant twine of the top open part preferably in plate shape deep trouth chamber 312, in case heat transfer, constraint material spaced apart steam vent 321 from groove lid 320 are revealed.
For the sintering making the heat-transfer effect of vertical board shape groove 310 be more suitable for tabular sintered body, as Fig. 6 to 10, described vertical board shape groove body 311 and plate shape deep trouth chamber 312 thereof are rectangular configuration, and the wall thickness formed between the outer wall of the wall thickness formed between the outer wall in vertical board shape groove body 311 side plate face to respective panels shape deep trouth chamber 312 inwall and another lateral plates of vertical board shape groove body 311 to respective panels shape deep trouth chamber 312 inwall is equal haply.In addition, the top of vertical board shape groove body 311 liang of plate face 311a is also further provided with top cross reinforcement 313a that is protruding outside plate face and that extend along the length direction of this vertical board shape groove body 311 respectively, described groove lid fixture 330 comprises several spaced clip 331 of length direction along vertical board shape groove body 311, described clip 331 from outside to inside holding card is lived the top of vertical board shape groove body 311 and the top cross reinforcement 313a of both sides thereof thus is pressed on by groove lid 320 on the opening in plate shape deep trouth chamber 312, can not only carry out very effective fixing like this to groove lid 320, simultaneously vertical board shape groove 310 opening can be effectively prevented at high temperature to be out of shape under the acting in conjunction of top cross reinforcement 313a and clip 331, avoid sintering the awkward situation that rear product not easily takes out.
In addition, as Fig. 6 to 10, the preferred structure of described preventing hot deformation reinforcement 313 is: preventing hot deformation reinforcement 313 comprises many protruding and cross reinforcing 313b that are that extend along the length direction of vertical board shape groove body 311 outside the 311a of plate face, and the cross reinforcing 313b on same lateral plates 311a is spaced in the short transverse of vertical board shape groove body 311.This structure effectively can prevent the thermal deformation of two plate face 311a on vertical board shape groove body 311, is conducive to the uniformity of the Temperature Distribution on the 311a of plate face simultaneously, thus better ensures product sintering quality.Same lateral plates 311a also can be arranged at least one cross reinforcing 313b and be connected with handle 340, so that operative.
Embodiment
As Fig. 1, 2 and 5, for the sintered porous material filter of disc type filter, comprise the filter body 100 be made up of sintering Ti-Al dual alloy billet porous material, filter body 100 is fan-shaped platy structure, it carries out sintering by the prefabricated hollow slab 100Y that powder materials isostatic mold is molded and makes, one edge of this prefabricated hollow slab 100Y is provided with long and narrow internal mold and looses core mouth 110, the reinforcement 120 in these relative two plate faces of mouth 110 company of being provided with this prefabricated hollow slab 100Y of loosing core relative in the inner chamber of prefabricated hollow slab 100Y, reinforcement 120 comprises two and is parallel to each other and the strip reinforcement 120 be symmetrical set in the inner chamber of prefabricated hollow slab, one end of strip reinforcement 120 and the medial surface in described top margin portion 160 are connected as a single entity, the other end is loosed core in region that direction extends near bottom side portion 150 along internal mold, described mouth 110 of loosing core, reinforcement 120 Integral mold when isostatic mold this prefabricated hollow slab molded 100Y is molded on this prefabricated hollow slab 100Y, the bonding sealing strip 140 being provided with this mouth 110 of loosing core closed on described filter body 100, sealing bar 140 is made up of stainless steel, the center in filter body 100 upper topside portion 160 is provided with outlet 190, this outlet 190 with loose core mouth 110, reinforcement 120 in the lump when compression molding prefabricated hollow slab 100Y Integral mold molded on prefabricated hollow slab 100Y, above filter, the radius R of arc is 490 millimeters, and filter height A is set to 266 millimeters, and width B is 250 millimeters, and two, bottom installing hole centre distance C is 98 millimeters, and thickness is set to 24 millimeters, and the inclination angle of fan-shaped left and right sides edge 170 is set to 30 °.During concrete installation, above-mentioned polylith sintered porous material filter is assembled into the banded disk of 360 °, these disks are all vertically uniform and be arranged in host horizontal rotating shaft.The hopper of disk constantly through below in rotation during work, make slurry constantly form filter cake on filter, and scraped by scraper, the water leached enters filter inner chamber, and is constantly discharged by outlet 190.
The manufacture method of above-mentioned sintered porous material filter is: inserted by powder materials in above-mentioned isostatic pressing mold, and mechanical jolt ramming, make powder materials fully, uniform filling in mold cavity, then the isostatic pressing mold assembled is put into iso-static pressure shaping machine compressing; Take out from mould and obtain a prefabricated hollow slab 100Y; Prefabricated hollow slab 100Y is put into above-mentioned special sintering equipment, then special sintering equipment is put into sintering furnace to sinter, filter body 100 is obtained after cooling, then on filter body 100, machining goes out installing hole (two installing hole centre distance C are 98 millimeters), and on this filter body 100, bonding installation is used for the sealing strip 140 closing mouth 110 of loosing core subsequently.
Claims (9)
1. prepare the special sintering equipment of tabular sintered body, it is characterized in that: this device comprises the vertical board shape groove (310) be made up of exotic material, groove lid (320) and groove lid fixture (330), described vertical board shape groove (310) comprises vertical board shape groove body (311), be arranged at the plate shape deep trouth chamber (312) in vertical board shape groove body (311) and be arranged at the preventing hot deformation reinforcement (313) on the relative two plate faces (311a) of vertical board shape groove body (311) respectively, the periphery in plate shape deep trouth chamber (312) and bottom lock and opening are positioned at the top of vertical board shape groove body (311), be fixed on vertical board shape groove body (311) by groove lid fixture (330) after groove lid (320) coordinates with the opening in this plate shape deep trouth chamber (312), the upper interval of groove lid (320) is furnished with steam vent (321), described vertical board shape groove body (311) and plate shape deep trouth chamber (312) thereof are rectangular configuration, and the wall thickness formed between the outer wall of the wall thickness formed between the outer wall in vertical board shape groove body (311) side plate face to respective panels shape deep trouth chamber (312) inwall and vertical board shape groove body (311) another lateral plates to respective panels shape deep trouth chamber (312) inwall is equal haply.
2. prepare the special sintering equipment of tabular sintered body as claimed in claim 1, it is characterized in that: the top of vertical board shape groove body (311) two plate face (311a) is respectively arranged with top cross reinforcement (313a) that is protruding outside plate face and that extend along the length direction of this vertical board shape groove body (311); Described groove lid fixture (330) comprises several spaced clip of length direction (331) along vertical board shape groove body (311), and described clip (331) from outside to inside holding card is lived the top of vertical board shape groove body (311) and the top cross reinforcement (313a) of both sides thereof thus is pressed on by groove lid (320) on the opening in plate shape deep trouth chamber (312).
3. prepare the special sintering equipment of tabular sintered body as claimed in claim 1 or 2, it is characterized in that: described preventing hot deformation reinforcement (313) comprises the many cross reinforcings (313b) extended to plate face (311a) outside projection and along the length direction of vertical board shape groove body (311), and the cross reinforcing (313b) in same lateral plates (311a) is spaced in the short transverse of vertical board shape groove body (311).
4. prepare the special sintering equipment of tabular sintered body as claimed in claim 3, it is characterized in that: same lateral plates (311a) has at least on a cross reinforcing (313b) and be connected with handle (340).
5. prepare the special sintering equipment of tabular sintered body as claimed in claim 1 or 2, it is characterized in that: the bottom of described vertical board shape groove (310) is provided with the lower support structure (350) keeping vertical board shape groove (310) stability of standing.
6. prepare the special sintering equipment of tabular sintered body as claimed in claim 1 or 2, it is characterized in that: described vertical board shape groove (310) entirety is made up of high temperature resistant stainless steel.
7. prepare the special sintering equipment of tabular sintered body as claimed in claim 1 or 2, it is characterized in that: described groove lid (320) and vertical board shape groove (310) adopt same material to make.
8. prepare the special sintering equipment of tabular sintered body as claimed in claim 1 or 2, it is characterized in that: the top open part of described plate shape deep trouth chamber (312) mounting groove lid (320) again after being covered by high temperature resistant twine.
9. prepare the method for tabular sintered body, its step comprises:
1) heat transfer, the constraint material of certain altitude are laid in the bottom in the plate shape deep trouth chamber (312) of the special sintering equipment first in claim 1 to 8 described in any one claim, then will to be placed on bottom thermal transfer, constraint material in pre-formed slab load plate shape deep trouth chamber (312) of preparing tabular sintered body, and to make pre-formed slab and plate shape deep trouth chamber (312) inwall keep setpoint distance;
2) in plate shape deep trouth chamber (312), heat transfer, constraint material is poured into from the opening in plate shape deep trouth chamber (312) further, whole pre-formed slab is submerged in heat transfer, constraint material and is kept by this heat transfer, constraint material, mechanical jolt ramming make heat transfer, constraint material abundant, be uniformly filled in around pre-formed slab;
3) mounting groove lid (320) groove lid (320) and vertical board shape groove body (311) being fixed by groove lid fixture (330), and then the special sintering equipment installed is put into sintering furnace sinter, coming out of the stove after sintering and taking out from special sintering equipment sinters by pre-formed slab the tabular sintered body formed.
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| CN201410240253.6A CN104001373B (en) | 2014-05-30 | 2014-05-30 | Prepare special sintering equipment and the method for tabular sintered body |
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| CN201410240253.6A CN104001373B (en) | 2014-05-30 | 2014-05-30 | Prepare special sintering equipment and the method for tabular sintered body |
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| CN104001373B true CN104001373B (en) | 2016-02-10 |
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| CN105233554B (en) * | 2015-09-11 | 2017-04-05 | 李湘花 | A kind of processing method and organic microporous filter body of organic microporous filter body |
| CN109530701B (en) * | 2018-12-29 | 2020-03-31 | 清华大学 | Foaming mould for preparing foam metal by powder metallurgy method |
| CN109652674B (en) * | 2019-01-18 | 2020-09-01 | 清华大学 | Foaming method for preparing foam metal by powder metallurgy method |
| CN113874095A (en) * | 2019-06-20 | 2021-12-31 | 尼佩创新公司 | Filter plate of rotary drum type filter |
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| CN201434589Y (en) * | 2009-05-06 | 2010-03-31 | 北京首钢国际工程技术有限公司 | Sintering pallet breast board |
| CN201909536U (en) * | 2011-01-26 | 2011-07-27 | 黄述生 | Grate bar for sintering machines |
| CN103629927A (en) * | 2013-09-29 | 2014-03-12 | 成都易态科技有限公司 | Material sintering production system, material sintering production method and single-blank sintering device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2004292252A (en) * | 2003-03-27 | 2004-10-21 | Ngk Insulators Ltd | Manufacture method of sintered body having thin plate part and support part, structure of sintered body having thin plate part and support part, and manufacture method of thin plate sintered body |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201434589Y (en) * | 2009-05-06 | 2010-03-31 | 北京首钢国际工程技术有限公司 | Sintering pallet breast board |
| CN201909536U (en) * | 2011-01-26 | 2011-07-27 | 黄述生 | Grate bar for sintering machines |
| CN103629927A (en) * | 2013-09-29 | 2014-03-12 | 成都易态科技有限公司 | Material sintering production system, material sintering production method and single-blank sintering device |
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