CN104857775A - Metal powder and metal sintering mesh composite filter element and production method thereof - Google Patents
Metal powder and metal sintering mesh composite filter element and production method thereof Download PDFInfo
- Publication number
- CN104857775A CN104857775A CN201510304147.4A CN201510304147A CN104857775A CN 104857775 A CN104857775 A CN 104857775A CN 201510304147 A CN201510304147 A CN 201510304147A CN 104857775 A CN104857775 A CN 104857775A
- Authority
- CN
- China
- Prior art keywords
- metal
- net
- metal powder
- layer
- filter element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Filtering Materials (AREA)
Abstract
The invention discloses a metal powder and metal sintering mesh composite filter element which adopts a round pipe structure, and comprises a metal mesh layer and a metal powder layer which are formed through sintering in sequence from outside to inside; the metal mesh layer comprises an outer dutch wire mesh, an inner dutch wire mesh and a plurality of plain meshes; the outer dutch wire mesh and the inner dutch wire mesh are consistent in structure, and vertically crossed and stacked according to lines; the plain meshes are arranged between the inner surface of the inner dutch wire mesh and the metal powder layer. The production method comprises the following steps: 1) arranging the metal layers, 2) sintering the metal layers, 3) preparing suspension slurry, 4) preparing the metal powder layer, 5) sintering a semi-finished product, and 6) pressing the finished product. The metal powder and metal sintering mesh composite filter element has the advantages of being small in filter resistance, high in fluid flux, strong in regeneration capacity, long in service cycle, and especially suitable for being used continuously during the process of production technology, needing continuous operation, of petrochemical engineering and the like.
Description
Technical field
The present invention relates to filter core field, be specifically related to a kind of metal dust and sintered metal mesh composite filter element and production method thereof.
Background technology
Due to the advantage such as high temperature resistant, low temperature resistant and corrosion-resistant, metallic filter material is widely used in petrochemical industry and other chemical engineering processes many, and its performance directly affects the safety of product quality, production efficiency and process units, acts on very important.Such as, oil refining factory both domestic and external generally adopts the catalyst granules in metal powder sintered filter element filtration slurry oil; S-Zorb gasoline and diesel hydrogenation desulphurization production technology is also adopt metal powder sintered filter element to carry out separating adsorbent particle.At present, homogeneous metal powder sintered filter element mostly adopts isostatic cool pressing seamless pipe-sintering and powder coiled sheet pipe-weld this two kinds of production technologies to make, the tube wall of this homogeneous metal powder filter core from outside to inside structurally homogeneous phase with.Usually field of petrochemical industry need the catalyst that is separated and absorbent particles very tiny, this just needs very high filtering accuracy.The wall thickness general control of homogeneous metal powder sintered filter element is between 1-5mm, and the shortcoming come out in production practices mainly filtration resistance is comparatively large, and the flow of filtration is little and cause the production capacity of device less.Meanwhile, the internal structure that tiny particle enters filter core is difficult to pulse cleaning, directly causes the inefficacy of filter core.
Summary of the invention
The object of the invention is to the above problem overcoming prior art existence, a kind of metal dust and sintered metal mesh composite filter element and production method thereof are provided, it is little that the present invention has filtration resistance, fluid flux is high, the advantages such as the strong and life cycle of power of regeneration is long, being particularly suitable for petrochemical industry etc. needs to continue use in the production process of working continuously.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of metal dust and sintered metal mesh composite filter element, for round tube shape structure, comprise the metal net layer and metal powder layer that sinter successively from outside to inside, described metal net layer comprises outside seat type net, inner side seat type net and some plain nets, described outside seat type net is consistent with inner side seat type web frame, described outside seat type net and inner side seat type net are arranged according to lines square crossing superposition, some plain nets are provided with between the inner surface of described inner side seat type net and metal powder layer, the plain weave order number being positioned at metal powder layer side in described two adjacent plain weave is greater than the plain weave order number being positioned at metal net layer side, the granularity order number of described metal powder layer is greater than adjacent plain weave order number.
Further, the quantity of described plain net is 2, and the plain weave mesh number being positioned at seat type net side, inner side is 40 orders, and the plain weave mesh number being positioned at metal powder layer side is 100-500 order.
Further, the granularity order number of described metal powder layer is 100-800 order.
Further, described metal powder layer comprises filtration key-course and transition zone, described transition zone is arranged on plain net and filters between key-course, the thickness range of described filtration key-course and transition zone all and 0.1-1.0mm, the granularity order number of described filtration key-course is 200-800 order, and the granularity order number of described transition zone is 100-500 order.
Further, the material of described metal net layer comprises one or more in stainless steel, nickel base superalloy, Titanium, nickel and Fe-Cr-Al alloy.
A production method for metal dust and sintered metal mesh composite filter element, comprises the following steps:
Step 1) arrangement metal level, smooth for the rolling on two-roller mill of two seat type nets, and be superimposed according to lines square crossing, then place plain net from little to large superposition successively according to order number, obtain metal layer laminate;
Step 2) sintered metal layer, the metal layer laminate superposed is placed in vacuum sintering furnace and sinters, terminate the rolling of rear recycling two-roller mill smooth, obtain metal net layer;
Step 3) supending slurry, by solid metal powder particle, liquid phase carrier, binding agent and additive mix and blend, obtain suspension slurry;
Step 4) prepare metal powder layer, face up the plain net side of metal net layer setting, then suspension slurry is inserted plain net surface, when suspension slurry pours plain net surface into, the seat type net side being positioned at metal net layer uses vacuum, the liquid phase in suspension slurry is taken away at leisure, form uniform metal powder layer, when suspension slurry is directly coated in plain net surface, uses spray gun by suspension slurry even application, form uniform metal powder layer;
Step 5) semi-finished product sintering, after abundant drying, put into vacuum sintering furnace and sinter, after terminating, utilize two-roller mill rolling smooth, complete a semi-finished product sintering;
Step 6) presswork, by the semi-finished product cutting in step 5, and be made into round tube shape with rolling machine or mould, wherein metal powder layer is positioned at the inner side of round tube shape, and finally in welding, seam obtains filter core finished product.
Further, in described step 2, the design temperature of vacuum sintering furnace is 1000 ~ 1400 DEG C, and sintering time is 1 ~ 10 hour.
Further, the suspension slurry in described step 3 is for filtering key-course suspension and transition zone suspension.
Further, in described step 5, the design temperature of vacuum sintering furnace is 1000 ~ 1400 DEG C, and sintering time is 1 ~ 5 hour, and in described step 5, semi-finished product sintering number is 2.
Further, in described step 2, the sintering number of metal layer laminate is 2.
The invention has the beneficial effects as follows:
The present invention is that a kind of filtration key-course is very thin, the composite filter element structure that structural support layers flow resistance is very little.The filter of the composite construction adopting production method of the present invention to produce, then be rolled into cylinder and make metal dust filter key-course at the internal layer of pipe, sintered metal mesh is positioned at the outside of pipe, finally again in seam welding become screen pipe.Filter at the slurry oil of oil refining factory, during S-Zorb absorbent filtering and other chemical processes filter, the filter type entering to go out in employing solve filter cake uneven, put up a bridge and form the problems such as short-channel.When the present invention uses filtration, the uniform filter cake of one deck can be formed in the inside of filter core, be conducive to improving the stability and online pulse cleaning ability of filtering.In addition, the design of the filter core that enters to go out in this can make filter core arrange compacter in the filter, thus can reduce the volume of filter, cost-saving.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of description, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in embodiment of the present invention technology, be briefly described to the accompanying drawing used required in the description of embodiment technology below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is filter cartridge construction schematic diagram of the present invention;
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one
With reference to shown in Fig. 1, a kind of metal dust and sintered metal mesh composite filter element, for round tube shape structure, comprise the metal net layer 1 and metal powder layer 2 that sinter successively from outside to inside, metal net layer comprises outside seat type net 3, inner side seat type net 4 and two plain nets 5, wherein seat type net is 12x64 order, outside seat type net is consistent with inner side seat type web frame, outside seat type net and inner side seat type net are arranged according to lines square crossing superposition, two plain nets are provided with between the inner surface of inner side seat type net and metal powder layer, the plain weave order number being positioned at metal powder layer side in two adjacent plain weave is greater than the plain weave order number being positioned at metal net layer side, namely the plain weave mesh number of seat type net side, inner side is 40 orders, the plain weave mesh number being positioned at metal powder layer side is 100 orders, the granularity order number of metal powder layer is greater than adjacent plain weave order number, namely the granularity order number of metal powder layer is between 100-800 order.
Metal powder layer comprises filtration key-course 6 and transition zone 7, transition zone is arranged on plain net and filters between key-course, all and 0.1-1.0mm, the granularity order number filtering key-course is 800 orders, and the granularity order number of transition zone is 500 orders for the thickness range of described filtration key-course and transition zone.Transition zone herein arranges mainly for being connected plain net and filtering key-course, because both order number differences are comparatively large, in order to ensure its firmness combined and prepare yield, so select transition zone, if both order number differences, between 0-400 order, can be selected not use transition zone.
The material of metal net layer comprise in stainless steel, nickel base superalloy, Titanium, nickel and Fe-Cr-Al alloy one or more.
A production method for metal dust and sintered metal mesh composite filter element, comprises the following steps:
Step 1) arrangement metal level, smooth for the rolling on two-roller mill of 12*64 object seat type net, two-layer 12x64 order wire netting is superimposed according to lines square crossing, then superposes 40 orders and 100 object plain nets successively, obtain metal layer laminate;
Step 2) sintered metal layer, be placed in vacuum sintering furnace by the metal layer laminate superposed and sinter, sintering temperature is 1350 DEG C, and sintering time is 5 hours, terminates the rolling of rear recycling two-roller mill smooth, obtains metal net layer;
Step 3) supending slurry, suspension slurry is for filtering key-course suspension and transition zone suspension, solid metal powder particle, liquid phase carrier, binding agent and additive mix and blend can be obtained, the main distinction of filtering key-course suspension and transition zone suspension is that the solid metal powder grain graininess that it uses is inconsistent, material can be selected according to demand, obtains two kinds of suspension slurry.Wherein the weight ratio of solid metal powder particle and liquid phase carrier is 0.4:1, ensures that its viscosity can not be too high, at 800mPas.
Step 4) prepare metal powder layer, face up the plain net side of metal net layer setting, then transition zone suspension is poured into plain net surface, the seat type net side being positioned at metal net layer starts vacuum, liquid phase in suspension slurry is taken away at leisure, form uniform transition zone, then on transition zone, pour with reference to the mode preparing transition zone the filtration key-course suspension prepared into, and suction filtration walks liquid phase, thus form the metal dust Rotating fields be made up of transition zone and surface filtration key-course; Directly topple over treat liquid due to viscosity low, will form the uniform film of one deck steadily, and thickness can calculate according to surface area, can effectively control, error rate is low.Herein owing to have selected the plain net of larger order number difference and filtration key-course, so have transition zone preparation technology, as not having transition zone, the mode can directly prepared with reference to preparing transition zone directly prepares filtration key-course.
Step 5) semi-finished product sintering, after abundant drying, put into vacuum sintering furnace and sinter, sintering temperature is 1000 DEG C, sinter after 1 hour and terminate, utilize two-roller mill rolling smooth, complete a semi-finished product sintering, because sintering time is short, in order to the adhesion between making every layer is stronger, so need again to sinter, the effect of two-step sintering can improve its adhesion greatly, and power consumption is few, stands Reusability and does not come off.Its sintering time is selected according to the resistance to elevated temperatures of solid metal powder particle.
Step 6) presswork, by the semi-finished product cutting in step 5, and be made into round tube shape with rolling machine or mould, wherein metal powder layer is positioned at the inner side of round tube shape, and finally in welding, seam obtains filter core finished product.According to the needs of design, can also in the welding of the both ends open place of screen pipe the hardware such as pipe joint, thus complete to enter to go out in one, the composite filter element be made up of metal powder layer and metal net layer.Welding manner is Plasma Welding, argon arc welding or laser weld.
In above-mentioned steps, the use of two-roller mill provides uniform carrier platform to preparation, and ensure that the filter core thickness after making is even, filter effect is even, and namely there will not be Partial filtration effective, part is poor, causes filtration uneven, affects service life.
Embodiment two
Embodiment two is with the difference of embodiment one, the plain weave mesh number being positioned at metal powder layer side is 200 orders, metal powder layer comprises filtration key-course, the granularity order number filtering key-course is 300 orders, because the order number difference of filtering key-course and plain net is little, so can transition zone be omitted, but the weight ratio of solid metal powder particle and liquid phase carrier is 0.8:1, ensure that its viscosity is at 1500mPas, when preparing metal powder layer, the proportioning of this viscosity can ensure that the liquid phase carrier in the liquid of toppling over can not just leak down the very first time, ensure its Uniform Flow, play good surface tiling control effects.
In preferred production Preparation Method, in step 2, the design temperature of vacuum sintering furnace is 1400 DEG C, and sintering time is 5 hours.
In step 5, the design temperature of vacuum sintering furnace is 1380 DEG C, and sintering time is 5 hours, and in step 5, semi-finished product sintering number is 1.
Embodiment three
Embodiment three is with the difference of embodiment one, the plain weave mesh number being positioned at metal powder layer side is 500 orders, metal powder layer comprises filtration key-course, the granularity order number filtering key-course is 800 orders, because the order number difference of filtering key-course and plain net is little, so can transition zone be omitted, but the proportion of solid metal powder particle and liquid phase carrier is 0.8:1, ensure that its viscosity is at 1500mPas, when preparing metal powder layer, the proportioning of this viscosity can ensure that the liquid phase carrier in the liquid of toppling over can not just leak down the very first time, ensure its Uniform Flow, play good surface tiling control effects.
In preferred production Preparation Method, in step 2, the design temperature of vacuum sintering furnace is 1200 DEG C, and sintering time is 10 hours.
In step 5, the design temperature of vacuum sintering furnace is 1200 DEG C, and sintering time is 10 hours, and in step 5, semi-finished product sintering number is 1.
Embodiment four
Embodiment four is with the difference of embodiment one, and in described production method, the sintering number of step 2 is 2 times, and the sintering number in step 5 is also 2 times, and repeat sintering circuit and be beneficial to the firmness improved between adjacent two layers material, intensity is high, improves service life.
Embodiment five
Embodiment five is with the difference of embodiment one, in described production method, adopts and add in spray gun by suspension slurry in step 4, then that suspension slurry even application is surperficial in plain net, directly forms uniform metal powder layer.Its operating efficiency is improved.
The present invention can produce very thin filter core, and there is good support strength, filter at the slurry oil of oil refining factory, during S-Zorb absorbent filtering and other chemical processes filter, the filter type entering to go out in employing solve filter cake uneven, put up a bridge and form the problems such as short-channel.When the present invention uses filtration, the uniform filter cake of one deck can be formed in the inside of filter core, be conducive to improving the stability and online pulse cleaning ability of filtering.In addition, the design of the filter core that enters to go out in this can make filter core arrange compacter in the filter, thus can reduce the volume of filter, cost-saving, and the quality of production and production efficiency obtain and significantly promotes.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a metal dust and sintered metal mesh composite filter element, for round tube shape structure, it is characterized in that: comprise the metal net layer and metal powder layer that sinter successively from outside to inside, described metal net layer comprises outside seat type net, inner side seat type net and some plain nets, described outside seat type net is consistent with inner side seat type web frame, described outside seat type net and inner side seat type net are arranged according to lines square crossing superposition, some plain nets are provided with between the inner surface of described inner side seat type net and metal powder layer, the plain weave order number being positioned at metal powder layer side in described two adjacent plain weave is greater than the plain weave order number being positioned at metal net layer side, the granularity order number of described metal powder layer is greater than adjacent plain weave order number.
2. a kind of metal dust according to claim 1 and sintered metal mesh composite filter element, it is characterized in that: the quantity of described plain net is 2, and the plain weave mesh number being positioned at seat type net side, inner side is 40 orders, and the plain weave mesh number being positioned at metal powder layer side is 100-500 order.
3. a kind of metal dust according to claim 2 and sintered metal mesh composite filter element, is characterized in that: the granularity order number of described metal powder layer is 100-800 order.
4. a kind of metal dust according to claim 1 and sintered metal mesh composite filter element, it is characterized in that: described metal powder layer comprises filtration key-course and transition zone, described transition zone is arranged on plain net and filters between key-course, the thickness range of described filtration key-course and transition zone all and 0.1-1.0mm, the granularity order number of described filtration key-course is 200-800 order, and the granularity order number of described transition zone is 100-500 order.
5. a kind of metal dust according to claim 1 and sintered metal mesh composite filter element, is characterized in that: the material of described metal net layer comprise in stainless steel, nickel base superalloy, Titanium, nickel and Fe-Cr-Al alloy one or more.
6. the production method of a kind of metal dust according to claim 1 and sintered metal mesh composite filter element, is characterized in that: comprise the following steps:
Step 1) arrangement metal level, smooth for the rolling on two-roller mill of two seat type nets, and be superimposed according to lines square crossing, then place plain net from little to large superposition successively according to order number, obtain metal layer laminate;
Step 2) sintered metal layer, the metal layer laminate superposed is placed in vacuum sintering furnace and sinters, terminate the rolling of rear recycling two-roller mill smooth, obtain metal net layer;
Step 3) supending slurry, by solid metal powder particle, liquid phase carrier, binding agent and additive mix and blend, obtain suspension slurry;
Step 4) prepare metal powder layer, face up the plain net side of metal net layer setting, then suspension slurry is inserted plain net surface, when suspension slurry pours plain net surface into, the seat type net side being positioned at metal net layer uses vacuum, the liquid phase in suspension slurry is taken away at leisure, form uniform metal powder layer, when suspension slurry is directly coated in plain net surface, uses spray gun by suspension slurry even application, form uniform metal powder layer;
Step 5) semi-finished product sintering, after abundant drying, put into vacuum sintering furnace and sinter, after terminating, utilize two-roller mill rolling smooth, complete a semi-finished product sintering;
Step 6) presswork, by the semi-finished product cutting in step 5, and be made into round tube shape with rolling machine or mould, wherein metal powder layer is positioned at the inner side of round tube shape, and finally in welding, seam obtains filter core finished product.
7. the production method of a kind of metal dust according to claim 6 and sintered metal mesh composite filter element, is characterized in that: in described step 2, the design temperature of vacuum sintering furnace is 1000 ~ 1400 DEG C, and sintering time is 1 ~ 10 hour.
8. the production method of a kind of metal dust according to claim 6 and sintered metal mesh composite filter element, is characterized in that: the suspension slurry in described step 3 is for filtering key-course suspension and transition zone suspension.
9. the production method of a kind of metal dust according to claim 6 and sintered metal mesh composite filter element, it is characterized in that: in described step 5, the design temperature of vacuum sintering furnace is 1000 ~ 1400 DEG C, sintering time is 1 ~ 5 hour, and in described step 5, semi-finished product sintering number is 2.
10. the production method of a kind of metal dust according to claim 6 and sintered metal mesh composite filter element, is characterized in that: in described step 2, the sintering number of metal layer laminate is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510304147.4A CN104857775A (en) | 2015-06-05 | 2015-06-05 | Metal powder and metal sintering mesh composite filter element and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510304147.4A CN104857775A (en) | 2015-06-05 | 2015-06-05 | Metal powder and metal sintering mesh composite filter element and production method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104857775A true CN104857775A (en) | 2015-08-26 |
Family
ID=53904203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510304147.4A Pending CN104857775A (en) | 2015-06-05 | 2015-06-05 | Metal powder and metal sintering mesh composite filter element and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104857775A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018000739A1 (en) * | 2016-06-29 | 2018-01-04 | 华南理工大学 | Method for processing and manufacturing metal structure material under coiling and sintering pressure of metal screen cloth |
| CN107983016A (en) * | 2017-12-11 | 2018-05-04 | 苏州海普过滤分离科技有限公司 | A kind of metal dust and sintered metal mesh Interface composites filter core and its production method |
| CN108187406A (en) * | 2017-12-18 | 2018-06-22 | 厦门市浩铂科技股份有限公司 | A kind of composite filter element and its production method |
| CN109622964A (en) * | 2019-01-09 | 2019-04-16 | 泰瑞机器股份有限公司 | A kind of skeleton reinforced metal material 3D printing molding machine and method |
| CN111203018A (en) * | 2020-01-17 | 2020-05-29 | 格锐德过滤科技(浙江)有限公司 | Preparation process of metal filter layer and filter element |
| CN111228877A (en) * | 2020-01-17 | 2020-06-05 | 格锐德过滤科技(浙江)有限公司 | Preparation process of metal filter layer and filter element |
| CN112569695A (en) * | 2020-11-10 | 2021-03-30 | 格锐德过滤科技(浙江)有限公司 | Preparation method of metal powder and metal sintered mesh composite filter element |
| CN113319282A (en) * | 2021-08-02 | 2021-08-31 | 江苏雄凯过滤技术有限公司 | Metal powder sintered filter element for realizing net-shaped support by utilizing metal ductility and preparation method thereof |
| CN115487604A (en) * | 2022-09-23 | 2022-12-20 | 东莞市名创传动科技有限公司 | Composite sintered filtering material |
| CN117619883A (en) * | 2023-12-01 | 2024-03-01 | 北京理工大学 | Three-dimensional brick composite material and technological preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010075832A (en) * | 2008-09-25 | 2010-04-08 | Nichidai Filter Corp | Filter for high speed filtration |
| CN103170186A (en) * | 2011-12-26 | 2013-06-26 | 昆山海普过滤分离科技有限公司 | Sintered metal fiber filtering material and preparation method thereof |
| CN103357881A (en) * | 2013-07-22 | 2013-10-23 | 王东伟 | Production method of multilayer metal mesh and metal powder composite filter pipe and filter element product |
| CN204767841U (en) * | 2015-06-05 | 2015-11-18 | 徐小平 | Metal powder and metal sintering net composite filter element |
-
2015
- 2015-06-05 CN CN201510304147.4A patent/CN104857775A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010075832A (en) * | 2008-09-25 | 2010-04-08 | Nichidai Filter Corp | Filter for high speed filtration |
| CN103170186A (en) * | 2011-12-26 | 2013-06-26 | 昆山海普过滤分离科技有限公司 | Sintered metal fiber filtering material and preparation method thereof |
| CN103357881A (en) * | 2013-07-22 | 2013-10-23 | 王东伟 | Production method of multilayer metal mesh and metal powder composite filter pipe and filter element product |
| CN204767841U (en) * | 2015-06-05 | 2015-11-18 | 徐小平 | Metal powder and metal sintering net composite filter element |
Non-Patent Citations (1)
| Title |
|---|
| 王国章等译: "《厚板热轧宽带钢及冷轧薄板的生产》", 31 August 1979, 鞍钢科学技术馆出版 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018000739A1 (en) * | 2016-06-29 | 2018-01-04 | 华南理工大学 | Method for processing and manufacturing metal structure material under coiling and sintering pressure of metal screen cloth |
| US11407029B2 (en) | 2016-06-29 | 2022-08-09 | South China University Of Technology | Method for processing and manufacturing a metal structural material by a coiling, sintering and plastic working of a metal screen mesh |
| CN107983016A (en) * | 2017-12-11 | 2018-05-04 | 苏州海普过滤分离科技有限公司 | A kind of metal dust and sintered metal mesh Interface composites filter core and its production method |
| CN108187406A (en) * | 2017-12-18 | 2018-06-22 | 厦门市浩铂科技股份有限公司 | A kind of composite filter element and its production method |
| CN109622964A (en) * | 2019-01-09 | 2019-04-16 | 泰瑞机器股份有限公司 | A kind of skeleton reinforced metal material 3D printing molding machine and method |
| CN111203018A (en) * | 2020-01-17 | 2020-05-29 | 格锐德过滤科技(浙江)有限公司 | Preparation process of metal filter layer and filter element |
| CN111228877A (en) * | 2020-01-17 | 2020-06-05 | 格锐德过滤科技(浙江)有限公司 | Preparation process of metal filter layer and filter element |
| CN112569695A (en) * | 2020-11-10 | 2021-03-30 | 格锐德过滤科技(浙江)有限公司 | Preparation method of metal powder and metal sintered mesh composite filter element |
| CN113319282A (en) * | 2021-08-02 | 2021-08-31 | 江苏雄凯过滤技术有限公司 | Metal powder sintered filter element for realizing net-shaped support by utilizing metal ductility and preparation method thereof |
| CN113319282B (en) * | 2021-08-02 | 2021-10-26 | 江苏雄凯过滤技术有限公司 | Metal powder sintered filter element for realizing net-shaped support by utilizing metal ductility and preparation method thereof |
| CN115487604A (en) * | 2022-09-23 | 2022-12-20 | 东莞市名创传动科技有限公司 | Composite sintered filtering material |
| CN117619883A (en) * | 2023-12-01 | 2024-03-01 | 北京理工大学 | Three-dimensional brick composite material and technological preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104857775A (en) | Metal powder and metal sintering mesh composite filter element and production method thereof | |
| US10092865B2 (en) | Method for producing composite filter tube and filter element made of multilayer metal mesh and metal powders | |
| CN102059340B (en) | Method for producing compound filter of multi-layer metal meshes and metal powder | |
| CN111228877B (en) | Preparation process of metal filter layer and filter element | |
| CN204767841U (en) | Metal powder and metal sintering net composite filter element | |
| CN201470211U (en) | Filter disc for disc vacuum filter | |
| CN106041101A (en) | Composite metal porous pipe and preparing method thereof | |
| CN107983016A (en) | A kind of metal dust and sintered metal mesh Interface composites filter core and its production method | |
| CN111203018A (en) | Preparation process of metal filter layer and filter element | |
| CN105965020A (en) | Preparation method for composite metal porous plate | |
| CN2677008Y (en) | Multilayer metal composite cintered net for filtration | |
| CN106621562A (en) | Multilayer net coated type metal filter element and manufacturing method thereof | |
| CN109481969A (en) | Fence type steel construction filter plate | |
| CN104039416A (en) | Metal fibre web based filter | |
| CN108187406A (en) | A kind of composite filter element and its production method | |
| CN206777972U (en) | A kind of overlay film filtration core | |
| CN111729405A (en) | Large-flux metal powder coating sintering net filter tube | |
| CN212594478U (en) | Large-flux metal powder coating sintering net filter tube | |
| CN209519403U (en) | Fence type steel construction filter plate | |
| CN208493531U (en) | A kind of new coal powder filter element for filtration | |
| CN209885398U (en) | Oversized metal sintered wire mesh | |
| CN208603878U (en) | A kind of filter has the self-service priming apparatus of primary filtration | |
| CN211189370U (en) | Composite filter disc for metal smelting and casting | |
| CN207076256U (en) | A kind of flue gas coming from carbide furnace wire basket sintered filter core | |
| CN109276928A (en) | Gradual-change bore diameter gradient filtration formula foldable filter element |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150826 |
|
| RJ01 | Rejection of invention patent application after publication |