CN1621199A - High-precision tungsten piece preparation method - Google Patents
High-precision tungsten piece preparation method Download PDFInfo
- Publication number
- CN1621199A CN1621199A CN 200410103517 CN200410103517A CN1621199A CN 1621199 A CN1621199 A CN 1621199A CN 200410103517 CN200410103517 CN 200410103517 CN 200410103517 A CN200410103517 A CN 200410103517A CN 1621199 A CN1621199 A CN 1621199A
- Authority
- CN
- China
- Prior art keywords
- tungsten
- hydrogen
- precision
- piece preparation
- smoothing
- 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.)
- Granted
Links
Landscapes
- Other Surface Treatments For Metallic Materials (AREA)
- ing And Chemical Polishing (AREA)
Abstract
The high precision tungsten plate producing process is especially suitable for producing high precision shielding tungsten plate for CT machine. The production process includes coating the blank tungsten plate with graphite emulsion of 15-20 wt% concentration, rolling after homogeneous heating, electrolytic polishing and pressurizing flattening. The said process is suitable for production of high precision tungsten plate with thickness deviation within 0.01 mm, flatness within 0.005 mm, lower surface roughness and sizes 0.203x146.05x257.05 mm.
Description
Technical field
A kind of high-precision tungsten piece preparation method relates to a kind of preparation method of tungsten plate, especially for the preparation method of the high precision tinted shade tungsten sheet of Medical CT machine.
Technical background
Along with the continuous development of industrial technology, tungsten is applied to for new developing direction with the sheet material form.For example a large amount of high-precision tungsten pieces that use make market increase gradually tungsten sheet demand as tinted shade on the Medical CT machine.The tungsten sheet requires to improve the working accuracy of tungsten sheet in the application of medicine equipment production field, just can better meet needs.Traditional processing technology owing to can only produce coarse low side tungsten plate, can't satisfy the demands.
Summary of the invention
Purpose of the present invention provides a kind of high-precision tungsten piece preparation method that can effectively guarantee dimensional precision and surface accuracy in order to overcome the deficiency that above-mentioned prior art exists.
The objective of the invention is to be achieved through the following technical solutions.
A kind of high-precision tungsten piece preparation method, comprise tungsten blanket heating, rolling, polishing, smoothing process, it is characterized in that it being that the tungsten blank is adopted weight concentration is after 15%～20% aquadag carries out coating, again blank is carried out that even heating is rolled, again through through electropolishing, pressurization smoothing.
A kind of high-precision tungsten piece preparation method of the present invention is characterized in that the even heating of blank adopts hydrogen nozzle-type process furnace, and this body of heater is a case structure, and the casing of body of heater is divided into upper and lower two portions by a horizontal gas barrier; One compressed air inlet pipe is arranged on the sidewall of the furnace body of gas barrier bottom, a hydrogen inlet pipe is arranged on the sidewall of the furnace body of gas barrier top; Vertical fixing has equally distributed pressurized air gas ejector pipe on horizontal baffle, and this compression gas pipe vertically passes the last boxboard of process furnace; It is corresponding and be enclosed within hydrogen air nozzle outside the pressurized air gas ejector pipe greater than pressurized air gas ejector pipe and position to be evenly distributed with diameter on process furnace on the boxboard, and the hydrogen air nozzle is higher than compressed-air atomizer, forms annular gap therebetween.
A kind of high-precision tungsten piece preparation method of the present invention, the surface that it is characterized in that the tungsten plate are to adopt electropolishing to reduce surfaceness, and electrolytic anode is the tungsten sheet, and negative electrode is the titanium plate, stirs with pressurized air, and electrolytic solution is NaOH, KClO
3, K
2CO
3The aqueous solution, NaOH: KClO wherein
3: K
2CO
3=1: 8: 4.
A kind of high-precision tungsten piece preparation method of the present invention, it is leveling die that its feature adopts the TZM molybdenum alloy plate in its smoothing annealing, and the tungsten sheet places between the mould, and the smoothing annealing process is 760 ℃ * 0.5h+1100 ℃ * 2h.
It is rolling to carry out finished product after method of the present invention adopts kind of a hydrogen nozzle-type process furnace to heat, and this tungsten sheet homogeneous heating degree is improved, and then has reduced tungsten sheet thickness deviation; Employing concentration was 15%～20% aquadag coating when finished product was rolling, and carried out with the method for spraying, had improved rolling condition, had improved tungsten sheet surfaceness simultaneously; Finished product is handled and is adopted electropolishing, uses the electrolytic solution of rational proportion also to be stirred, and has reduced tungsten sheet surfaceness; Finished products adopts novel hydrogen annealing stove to imitate flat annealing, has improved tungsten sheet planeness greatly.
Improving aspect the tungsten sheet thickness deviation, the nozzle arrangement of hydrogen nozzle-type process furnace evenly and distribute closelyer makes the tungsten sheet be heated evenly degree and is improved; This process furnace hydrogen and pressurized air mix, and security is better; By regulating just may command Heating temperature of hydrogen and compressed-air actuated flow, easy to use, be fit to produce in enormous quantities.Improving aspect the tungsten sheet roughness, adopt certain density aquadag coating when finished product is rolling, and adopt the mode of spraying to carry out, improved rolling condition, while is because the aquadag of spraying is thin and even, not only right homogeneity was better after the tungsten sheet was rolling, and surfaceness has also obtained improvement to a certain degree.Finished product is handled and is adopted the electrolytic solution of specific proportioning to carry out electropolishing, and by the particular electrical chemical action, the concavo-convex degree of tungsten sheet surface microscopic reduces, and surfaceness reduces.Improving aspect the tungsten sheet planeness, adopt the hydrogen annealing stove to smooth annealing, the tungsten sheet bears certain additional load (being applied jointly by TZM molybdenum alloy plate and tungsten sheet), adopts 760 ℃ * 0.5h+1100 ℃ * 2h annealing process, tungsten bending tablet degree greatly reduces, and planeness significantly improves.Adopt method of the present invention, can produce thickness deviation in batches is that 0.01mm, planeness are 0.005mm, surfaceness 0.203 * 146.05 * 257.05mm high-precision tungsten piece preferably.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is a hydrogen nozzle-type heating furnace structure synoptic diagram.
Embodiment
A kind of high-precision tungsten piece preparation method, comprise tungsten blanket heating, rolling, polishing, smoothing process, it is characterized in that it being that the tungsten blank is adopted weight concentration is after 15%～20% aquadag carries out coating, again blank is carried out that even heating is rolled, again through through electropolishing, pressurization smoothing.The even heating of blank adopts hydrogen nozzle-type process furnace, and this body of heater is a case structure, and the casing 3 of body of heater is divided into upper and lower two portions by a horizontal gas barrier 6; One compressed air inlet pipe 5 is arranged on the sidewall of the furnace body of gas barrier bottom, a hydrogen inlet pipe 4 is arranged on the sidewall of the furnace body of gas barrier top; Vertical fixing has equally distributed pressurized air gas ejector pipe 2 on horizontal baffle, and this compression gas pipe vertically passes the last boxboard of process furnace; It is corresponding and be enclosed within hydrogen air nozzle 1 outside the pressurized air gas ejector pipe greater than pressurized air gas ejector pipe and position to be evenly distributed with diameter on process furnace on the boxboard, and the hydrogen air nozzle is higher than compressed-air atomizer, forms annular gap therebetween.The surface of tungsten plate is to adopt electropolishing to reduce surfaceness, and electrolytic anode is the tungsten sheet, and negative electrode is the titanium plate, stirs with pressurized air, and electrolytic solution is NaOH, KClO
3, K
2CO
3The aqueous solution, NaOH: KClO wherein
3: K
2CO
3=1: 8: 4.It is leveling die that the TZM molybdenum alloy plate is adopted in its smoothing annealing, and the tungsten sheet places between the mould.The smoothing annealing process is 760 ℃ * 0.5h+1100 ℃ * 2h.
At first adopt spray gun that aquadag is coated on tungsten plate surface during preparation, carry out pair rolling behind even heating on the hydrogen process furnace, it is the tungsten sheet that electrolytic anode is adopted in rolling back, negative electrode is the titanium plate, and stir with pressurized air, power supply is adjustable direct current, electrolytic solution is NaOH, KClO
3, K
2CO
3The aqueous solution, NaOH: KClO wherein
3: K
2CO
3=1: 8: 4 condition is electroplated polishing, reduces surfaceness.Adopt the vertical resistance furnace indirect heating of cylinder shape again, the tungsten sheet places heating tank, and heating tank leads to hydrogen shield, prevents the oxidation of tungsten sheet, and the logical water coolant of tank body epimere cools off, and adopts body of heater, two thermopairs of heating tank automatic temperature measurement simultaneously.Leveling die adopts 15 * 200 * 300mmTZM molybdenum alloy plate, and the tungsten sheet divides five to be placed between the TZM molybdenum alloy plate.Smoothing 760 ℃ of annealing process employings * 0.5h+1100 ℃ * 2h carries out.
Claims (4)
1. high-precision tungsten piece preparation method, comprise tungsten blanket heating, rolling, polishing, smoothing process, it is characterized in that it being that the tungsten blank is adopted weight concentration is after 15%～20% aquadag carries out coating, again blank is carried out that even heating is rolled, again through through electropolishing, pressurization smoothing.
2. according to the described a kind of high-precision tungsten piece preparation method of claim, it is characterized in that the even heating of blank adopts hydrogen nozzle-type process furnace, this body of heater is a case structure, and the casing of body of heater is divided into upper and lower two portions by a horizontal gas barrier; One compressed air inlet pipe is arranged on the sidewall of the furnace body of gas barrier bottom, a hydrogen inlet pipe is arranged on the sidewall of the furnace body of gas barrier top; Vertical fixing has equally distributed pressurized air gas ejector pipe on horizontal baffle, and this compression gas pipe vertically passes the last boxboard of process furnace; It is corresponding and be enclosed within hydrogen air nozzle outside the pressurized air gas ejector pipe greater than pressurized air gas ejector pipe and position to be evenly distributed with diameter on process furnace on the boxboard, and the hydrogen air nozzle is higher than compressed-air atomizer, forms annular gap therebetween.
3. according to the described a kind of high-precision tungsten piece preparation method of claim, the surface that it is characterized in that the tungsten plate is to adopt electropolishing to reduce surfaceness, and electrolytic anode is the tungsten sheet, and negative electrode is the titanium plate, stirs with pressurized air, and electrolytic solution is NaOH, KClO
3, K
2CO
3The aqueous solution, NaOH: KClO wherein
3: K
2CO
3=1: 8: 4.
4. according to the described a kind of high-precision tungsten piece preparation method of claim, it is leveling die that its feature adopts the TZM molybdenum alloy plate in its smoothing annealing, and the tungsten sheet places between the mould.The smoothing annealing process is 760 ℃ * 0.5h+1100 ℃ * 2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410103517XA CN100355528C (en) | 2004-12-30 | 2004-12-30 | High-precision tungsten piece preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410103517XA CN100355528C (en) | 2004-12-30 | 2004-12-30 | High-precision tungsten piece preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1621199A true CN1621199A (en) | 2005-06-01 |
| CN100355528C CN100355528C (en) | 2007-12-19 |
Family
ID=34766871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410103517XA Active CN100355528C (en) | 2004-12-30 | 2004-12-30 | High-precision tungsten piece preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100355528C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100439036C (en) * | 2006-12-15 | 2008-12-03 | 西部金属材料股份有限公司 | Process for preparing high-precision thick tungsten plate |
| CN100464880C (en) * | 2007-12-17 | 2009-03-04 | 西部金属材料股份有限公司 | Method for rolling small-coarseness high-light thin wolfram sheet |
| CN100528394C (en) * | 2006-12-15 | 2009-08-19 | 西部金属材料股份有限公司 | Method for leveling tungsten plate with high straightness |
| CN103981471A (en) * | 2013-02-07 | 2014-08-13 | 上海六晶金属科技有限公司 | Annealing method of tungsten metal plate, molybdenum metal plate, tungsten alloy plate or molybdenum alloy plate |
| CN105414182A (en) * | 2015-12-29 | 2016-03-23 | 西安瑞福莱钨钼有限公司 | Rolling method of bright thin tungsten chip |
| CN105887179A (en) * | 2016-05-13 | 2016-08-24 | 西北有色金属研究院 | Electrolytic polishing liquid of tungsten alloy or molybdenum alloy and electrolytic polishing method |
| CN106077617A (en) * | 2016-08-18 | 2016-11-09 | 中铼新材料有限公司 | A kind of manufacture method of ultra-thin high-purity rhenium paper tinsel |
| CN109402719A (en) * | 2018-12-14 | 2019-03-01 | 西安瑞福莱钨钼有限公司 | A kind of preparation method of tungsten narrowband foil |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW472089B (en) * | 1996-09-17 | 2002-01-11 | Toyo Kohan Co Ltd | Surface treated steel sheet with low contact resistance and connection terminal material produced thereof |
-
2004
- 2004-12-30 CN CNB200410103517XA patent/CN100355528C/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100439036C (en) * | 2006-12-15 | 2008-12-03 | 西部金属材料股份有限公司 | Process for preparing high-precision thick tungsten plate |
| CN100528394C (en) * | 2006-12-15 | 2009-08-19 | 西部金属材料股份有限公司 | Method for leveling tungsten plate with high straightness |
| CN100464880C (en) * | 2007-12-17 | 2009-03-04 | 西部金属材料股份有限公司 | Method for rolling small-coarseness high-light thin wolfram sheet |
| CN103981471A (en) * | 2013-02-07 | 2014-08-13 | 上海六晶金属科技有限公司 | Annealing method of tungsten metal plate, molybdenum metal plate, tungsten alloy plate or molybdenum alloy plate |
| CN105414182A (en) * | 2015-12-29 | 2016-03-23 | 西安瑞福莱钨钼有限公司 | Rolling method of bright thin tungsten chip |
| CN105887179A (en) * | 2016-05-13 | 2016-08-24 | 西北有色金属研究院 | Electrolytic polishing liquid of tungsten alloy or molybdenum alloy and electrolytic polishing method |
| CN105887179B (en) * | 2016-05-13 | 2018-03-16 | 西北有色金属研究院 | A kind of electrolytic polishing liquid and electrolytic polishing method of tungsten alloy or molybdenum alloy |
| CN106077617A (en) * | 2016-08-18 | 2016-11-09 | 中铼新材料有限公司 | A kind of manufacture method of ultra-thin high-purity rhenium paper tinsel |
| CN106077617B (en) * | 2016-08-18 | 2018-05-04 | 中铼新材料有限公司 | A kind of manufacture method of ultra-thin high-purity rhenium paper tinsel |
| CN109402719A (en) * | 2018-12-14 | 2019-03-01 | 西安瑞福莱钨钼有限公司 | A kind of preparation method of tungsten narrowband foil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100355528C (en) | 2007-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105568236B (en) | A kind of high-purity, high fine and close, preparation method of large scale molybdenum titanium alloy sputtering target material | |
| CN105397086B (en) | A kind of titanium alloy hollow blade laser accurate manufacturing process | |
| CN107252866B (en) | The multiple protrusion ozzle large-sized end enclosure forging integral forging and forming methods of nuclear reactor band | |
| CN110218910A (en) | A kind of novel powder high temperature alloy and preparation method thereof | |
| CN1621199A (en) | High-precision tungsten piece preparation method | |
| CN103586391B (en) | Extrusion forming method for blade made of GH2787 high-temperature alloy | |
| CN108018592A (en) | A kind of zircaloy differential arc oxidization surface method of modifying | |
| CN107866569A (en) | A kind of method that fine copper tool-electrode is prepared based on selective laser smelting technology | |
| CN108546935A (en) | The preparation method of platinum coated anode plate | |
| CN105798295B (en) | A kind of preparation method of molybdenum and molybdenum alloy part | |
| CN109759589A (en) | A kind of fine copper 3D printing increasing material manufacturing method | |
| CN103602981B (en) | SMT ladder template fabrication | |
| CN111469324A (en) | Energy-saving environment-friendly metal hand mold and manufacturing method thereof | |
| CN107739891B (en) | A kind of nickel molybdenum intermediate alloy is preparing the application in ErNiCrMo-3 alloy | |
| CN108660488A (en) | The preparation method of electrolytic copper foil anode plate | |
| CN105886989A (en) | Device for preparing solder strip and method for preparing solder strip through device for preparing solder strip | |
| CN110421004A (en) | A kind of preparation method of alumina dispersion-strenghtened copper bulk board carrying material | |
| CN107838220A (en) | The preparation method of noble metal seamless tube | |
| CN108179306A (en) | A kind of robot welds arm acid bronze alloy | |
| CN103978345B (en) | A kind of preparation method of tubulose molybdenum target material | |
| CN115874216A (en) | Platinum-based amorphous alloy porous catalyst for chlorine evolution reaction and preparation method thereof | |
| WO2019024738A1 (en) | Method for manufacturing aluminum alloy building material with imitation-wood-grain surface | |
| CN205550636U (en) | SPE membrane automatic spraying device | |
| CN100484664C (en) | Energy-saving and environment-protecting type method and aparatus for producing cobalt sheet | |
| CN114210965A (en) | Metallic silver and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Xi'an Refra Tungsten & Molybdenum Co., Ltd. Assignor: Xibu Metal Material Co., Ltd. Contract record no.: 2011610000054 Denomination of invention: High-precision tungsten piece preparation method Granted publication date: 20071219 License type: Exclusive License Open date: 20050601 Record date: 20110629 |