CN102485379A - Forming method of special-shaped filter tube - Google Patents
Forming method of special-shaped filter tube Download PDFInfo
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- CN102485379A CN102485379A CN2010105789792A CN201010578979A CN102485379A CN 102485379 A CN102485379 A CN 102485379A CN 2010105789792 A CN2010105789792 A CN 2010105789792A CN 201010578979 A CN201010578979 A CN 201010578979A CN 102485379 A CN102485379 A CN 102485379A
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Abstract
The invention discloses a forming method of a special-shaped filter tube, which belongs to the field of filter tube forming. The special-shaped filter tube is formed through a soft mould core method; an adopted mould structure is a soft mould core as the inside and a combined female mould as the outside; the combined female module is fixed by a clamping holder; powder is filled between the combined female mould and the soft mould core; the powder is filled into a mould cavity and is sealed, and the mould is taken out after the pressing and forming processes are completed; the combined female mould and the soft mould core are removed to obtain the special-shaped filter tube; and after the adoption of the special-shaped filter tube, the filter area is improved by at least 1.5 times compared with the filter area of an ordinary filter tube, so that the purposes of reducing the flowing resistance and prolonging the service life are achieved, and the special-shaped filter tube has the characteristics of high flow, long service life, small occupied area and simple structure. The soft mould core method for forming the special-shaped filter tube comprises the material of the mould, the mould structure and a pressing method, and the special-shaped filter tube which is formed through the method has the characteristics of high finished product rate, low production cost and short cycle.
Description
Technical field
The moulding of the soft special filter pipe of the present invention relates to waste gas and water-treatment technology field; Be particularly related to Separation of Solid and Liquid and gas solid separation technical field; Relate in particular to HTHP gas solid separation field; Be specifically related to a kind of forming method of special filter pipe.
Background technology
For waste gas and water technology; Filter area, filtration yield and resistance to elevated temperatures that its crucial core technology is a filter element; In order to improve filtration yield; Various filters constantly occur, adopted multilayer, multitube to increase filter area and filtering traffic, adopted the method for multilayer like patent CN91203176.X multiaperture-type filter; Adopt the method for multitube like CN90207685.X novel meticulous water filter; These measures have all increased the complexity of device, be unfavorable for installing/dismounting and maintenance, simultaneously single unit system exist volume big and weigh, weak points such as floor space is big, cost of manufacture is high, comprehensive benefit difference, maintenance is inconvenient in commercial Application; To filter its operating temperature in order improving, to adopt ceramic material to do the screen pipe material, but pottery can not be in the big occasion use of temperature fluctuation, ceramic filter tube is frangible simultaneously, is not easy to install, and these have all limited the scope of application of ceramic filter tube.In order to overcome these deficiencies, adopt the special filter cross section to replace circular cross-section, this has increased filter area; Greatly improved filtering traffic, simplified filter, saved floor occupying area; Reduce preparation cost, be fit to industry and use, maintenance cost is lower; Use refractory metal and alloy thereof to improve serviceability temperature as the screen pipe material simultaneously, the characteristics that have recoil regeneration simultaneously increase the service life.
Summary of the invention
The present invention provides a kind of forming method of special filter pipe, is specially: adopt soft mode core method moulding abnormity screen pipe, the mould therefor structure is the inner soft mode core that is; The outside is the combination former; Adopt deck will make up former and fix, make up filling powder between former and the soft mode core, powder is packed into and is sealed behind the die cavity; Take out mould after the compression moulding, remove combination former and soft mode core and obtain special-shaped screen pipe.
The cross sectional shape of said special filter pipe is a polygonal, and the number at angle is greater than 5.
The material of said special filter pipe can be stainless steel, titanium and titanium alloy, Monel series alloy, Inconel series alloy.
Said core material is a polyurethane.
Combination former and deck adopt rigid material to form.
Said drawing method adopts the isostatic cool pressing compacting.
Beneficial effect of the present invention is:
(1) flow is big: because the more common screen pipe of unit volume filter area improves at least 1.5 times, therefore have bigger filtering traffic;
(2) renewable: owing to adopt different in nature screen pipe to be made up of metal material, intensity is high, just recoiling can, can remove the dirt that is deposited on the filter course surface through the method for recoil, can reuse;
(3) high temperature resistant: because different in nature screen pipe material therefor all is a materials with high melting point, intensity is high under the hot conditions, and stable performance can be reliable and practical under hot conditions.
(4) life-span is long: owing to have reproducible characteristics, and intensity is higher, so the special filter pipe has long service life.
(5) moulding is simple: adopt the soft mode core, and compacting back automatic demoulding, operation is with short production cycle easily, and yield rate is high.
(6) applied range: can be used for fields such as pharmacy, environmental protection, food, metallurgy, chemical industry, be used for occasions such as gas purification, fluid purification, Separation of Solid and Liquid.
Description of drawings
Fig. 1 is a special filter pipe mold assembling sketch map;
Fig. 2 is a special filter pipe mold master pseudosection;
Fig. 3 is a special filter pipe die combinations mold component sectional view;
Label among the figure:
1-makes up former; 2-soft mode core; The 3-powder; The 4-deck; 5-combination former mold sections; The another kind of combination of 6-former mold sections.
The specific embodiment
The invention provides a kind of special filter pipe and forming method thereof, through the description of drawings and the specific embodiment the present invention is further specified below.
According to structure shown in Figure 1 with special-shaped soft mode core and stiff assembly former and deck through four bolt, with the metal dust of the needs die cavity rear enclosed of packing into uniformly, make itself and the external world reach sealing state; Putting into cold isostatic press suppresses; The soft mode core conducts fluid pressure to powder, the powder pressed volume reduces, after the pressure release; Pressure reduces, and the soft mode core recovers original form.From cold isostatic press, take out mould, the soft mode core separates with pressed compact, can be easy to take out soft mode core and combination former.
Embodiment 1:
According to structure shown in Figure 1 with 12 jiaos of soft mode cores and stiff assembly former and deck through four bolt; With the Titanium powder die cavity rear enclosed of packing into uniformly; Make itself and the external world reach sealing state; Put into cold isostatic press and suppress, from cold isostatic press, take out mould, remove combination former and soft mode core and obtain 12 jiaos of special-shaped titanium screen pipes.
Embodiment 2:
According to structure shown in Figure 1 with 8 jiaos of soft mode cores and stiff assembly former and deck through four bolt; With the Monel 400 alloy powders die cavity rear enclosed of packing into uniformly; Make itself and the external world reach sealing state; Put into cold isostatic press and suppress, from cold isostatic press, take out mould, remove combination former and soft mode core and obtain 8 jiaos of special-shaped Monel 400 alloy screen pipes.
Embodiment 3:
According to structure shown in Figure 1 with 10 jiaos of soft mode cores and stiff assembly former and deck through four bolt; With the Inconel 690 alloy powders die cavity rear enclosed of packing into uniformly; Make itself and the external world reach sealing state; Put into cold isostatic press and suppress, from cold isostatic press, take out mould, remove combination former and soft mode core and obtain 10 jiaos of special-shaped Inconel 690 alloy screen pipes.
Embodiment 4:
According to structure shown in Figure 1 with 14 jiaos of soft mode cores and stiff assembly former and deck through four bolt; With the powder of stainless steel die cavity rear enclosed of packing into uniformly; Make itself and the external world reach sealing state; Put into cold isostatic press and suppress, from cold isostatic press, take out mould, remove combination former and soft mode core and obtain 14 jiaos of special-shaped stainless steel screen pipes.
Claims (6)
1. the forming method of a special-shaped screen pipe is characterized in that, adopts soft mode core method moulding abnormity screen pipe; The mould therefor structure is the inner soft mode core (2) that is, the outside is a combination former (1), and it is fixing to adopt deck (4) will make up former (1); Filling powder between combination former (1) and the soft mode core (2); Powder is packed into and is sealed behind the die cavity, takes out mould after the compression moulding, removes combination former (1) and soft mode core (2) and obtains special-shaped screen pipe.
2. the forming method of special filter pipe according to claim 1 is characterized in that, the cross sectional shape of said special filter pipe is a polygonal, and the number at angle is greater than 5.
3. the forming method of special filter pipe according to claim 1 is characterized in that, the material of said special filter pipe is stainless steel, titanium and titanium alloy, Monel series alloy or Inconel series alloy.
4. the forming method of special filter pipe according to claim 1 is characterized in that, said soft mode core (2) material is a polyurethane.
5. the forming method of special filter pipe according to claim 1 is characterized in that, said combination former (1) and said deck (4) adopt rigid material to form.
6. the forming method of special filter pipe according to claim 1 is characterized in that: drawing method adopts the isostatic cool pressing compacting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105789792A CN102485379A (en) | 2010-12-03 | 2010-12-03 | Forming method of special-shaped filter tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105789792A CN102485379A (en) | 2010-12-03 | 2010-12-03 | Forming method of special-shaped filter tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102485379A true CN102485379A (en) | 2012-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105789792A Pending CN102485379A (en) | 2010-12-03 | 2010-12-03 | Forming method of special-shaped filter tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102485379A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109365824A (en) * | 2018-10-25 | 2019-02-22 | 西安石油大学 | A kind of preparation method of 6.5wt% high-silicon electrical steel thin-walled hollow tubing |
| CN110102761A (en) * | 2019-06-11 | 2019-08-09 | 株洲新科硬质合金有限公司 | A kind of micropore hard alloy material preparation method |
| CN113182517A (en) * | 2021-03-17 | 2021-07-30 | 中国工程物理研究院材料研究所 | Quasi-near net-shape soft die for high-specific-weight tungsten alloy product blank |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55137937A (en) * | 1979-04-13 | 1980-10-28 | Matsushita Electric Ind Co Ltd | Mold for cylindrical filter |
| CN201020535Y (en) * | 2007-05-18 | 2008-02-13 | 西北有色金属研究院 | Internal pressure type cold isostatic pressing mould with flange powder filtering tube |
| CN201020537Y (en) * | 2007-05-18 | 2008-02-13 | 西北有色金属研究院 | Cold isostatic moulding die for producing sintering powder filtering tube |
| CN101708400A (en) * | 2009-12-01 | 2010-05-19 | 韶关市贝瑞过滤科技有限公司 | Method for preparing seamless sintering metal powder filtering membrane tube |
-
2010
- 2010-12-03 CN CN2010105789792A patent/CN102485379A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55137937A (en) * | 1979-04-13 | 1980-10-28 | Matsushita Electric Ind Co Ltd | Mold for cylindrical filter |
| CN201020535Y (en) * | 2007-05-18 | 2008-02-13 | 西北有色金属研究院 | Internal pressure type cold isostatic pressing mould with flange powder filtering tube |
| CN201020537Y (en) * | 2007-05-18 | 2008-02-13 | 西北有色金属研究院 | Cold isostatic moulding die for producing sintering powder filtering tube |
| CN101708400A (en) * | 2009-12-01 | 2010-05-19 | 韶关市贝瑞过滤科技有限公司 | Method for preparing seamless sintering metal powder filtering membrane tube |
Non-Patent Citations (1)
| Title |
|---|
| 李元喜: "粉末冶金钛过滤管的冷等静压成型", 《稀有金属材料与工程》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109365824A (en) * | 2018-10-25 | 2019-02-22 | 西安石油大学 | A kind of preparation method of 6.5wt% high-silicon electrical steel thin-walled hollow tubing |
| CN110102761A (en) * | 2019-06-11 | 2019-08-09 | 株洲新科硬质合金有限公司 | A kind of micropore hard alloy material preparation method |
| CN110102761B (en) * | 2019-06-11 | 2021-03-09 | 株洲新科硬质合金有限公司 | Preparation method of microporous hard alloy material |
| CN113182517A (en) * | 2021-03-17 | 2021-07-30 | 中国工程物理研究院材料研究所 | Quasi-near net-shape soft die for high-specific-weight tungsten alloy product blank |
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Application publication date: 20120606 |