CN108687158A - A kind of preparation method of isotropism molybdenum plate - Google Patents
A kind of preparation method of isotropism molybdenum plate Download PDFInfo
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- CN108687158A CN108687158A CN201810447470.0A CN201810447470A CN108687158A CN 108687158 A CN108687158 A CN 108687158A CN 201810447470 A CN201810447470 A CN 201810447470A CN 108687158 A CN108687158 A CN 108687158A
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- molybdenum
- isotropism
- molybdenum plate
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- rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
Abstract
The invention discloses a kind of preparation methods of isotropism molybdenum plate.This approach includes the following steps:(1) the molybdenum base using molybdenum content more than 99% is raw material, and at least twice by the processing of high-velocity forging technique, the impact energy that molybdenum plate is instantaneously born every time is 3~7MJ, and pass deformation is 30~50%;(2) products obtained therefrom at least once, makes its total deformation reach 10~30% in milling step (1);(3) product after rolling is warming up to 800~1200 DEG C, and keeps the temperature 60~120min, heating rate is 100~500 DEG C/min.Almost zero defect, and isotropism inside the molybdenum plate that the present invention is prepared.
Description
Technical field
The invention belongs to metal form preparing technical fields, and in particular to a kind of preparation method of isotropism molybdenum plate.
Background technology
The Molybdenum parts that precise electronic component and other precision apparatus fields are used, often structure it is extremely complex, zero
Part dimension precision requirement is high, such as:The medicine of the slow-wave structure part of high power travelling wave tube, the grid of high-power transmitting tube, armor-piercing bullet
Type cover etc..To meet the performance and Precision Machining requirement of this kind of product, it is necessary that molybdenum plate is small with isotropism or anisotropy
Condition.The molybdenum plate of prior art technology manufacture, due to causing molybdenum plate to there is significantly anisotropy, inside there are plate texture
The machining property of defect and difference, to cannot be satisfied the manufacture requirement of above-mentioned accurate molybdenum part.
Invention content
For above-mentioned deficiency in the prior art, the present invention provides a kind of preparation method of isotropism molybdenum plate, can be effective
Solve the molybdenum plate anisotropy that prior art is prepared, the problem of machining property deficiency.
To achieve the above object, the technical solution adopted by the present invention to solve the technical problems is:
A kind of preparation method of isotropism molybdenum plate, includes the following steps:
(1) the molybdenum base using molybdenum content more than 99% is raw material, and at least twice by the processing of high-velocity forging technique, molybdenum plate is each
The impact energy instantaneously born is 3~7MJ, and pass deformation is 30~50%;
(2) products obtained therefrom at least once, makes its total deformation reach 10~30% in milling step (1);
(3) product after rolling being warming up to 800~1200 DEG C, and keeps the temperature 60~120min, heating rate is 100~
500℃/min。
Further, the detailed process of step (1) high speed forging technology is:Rapidity of blow is 100~120m/s;Molybdenum base
The impact energy instantaneously born every time is 4.6MJ, pass deformation 35%.
Further, rolling is warm-rolling or cold rolling in step (2).
Further, temperature is 750~1000 DEG C during warm-rolling.
Further, temperature is 900 DEG C in step (3), and heating rate is 240 DEG C/min, and keeps the temperature 80min.
Beneficial effects of the present invention are:
1, High-Purity Molybdenum base of the molybdenum content more than 99.98% reduces impurity element to molybdenum plate as molybdenum plate raw material is prepared
Harmful effect caused by energy.
2, high speed high energy forges processing technology, so that internal grain is crashed to pieces as tiny equi-axed crystal, exists in molybdenum base
Many tiny flaws by pressing disappear and since deformation velocity is exceedingly fast, newly generated micro-flaw also have little time extension when by
Again it presses and disappears, to obtain the few molybdenum plate of internal flaw.
3, total deformation of the suitable molybdenum plate after warm-rolling or cold rolling improves molybdenum plate thickness precision, to meet subsequent fine
The requirement of close processing;It is heat-treated finally by homogenization, it is ensured that molybdenum plate has isotropic feature.
Specific implementation mode
The specific implementation mode of the present invention is described below, in order to facilitate understanding by those skilled in the art this hair
It is bright, it should be apparent that the present invention is not limited to the ranges of specific implementation mode, for those skilled in the art,
As long as various change is in the spirit and scope of the present invention that the attached claims limit and determine, these variations are aobvious and easy
See, all are using the innovation and creation of present inventive concept in the row of protection.
Embodiment 1
A kind of preparation method of isotropism molybdenum plate, includes the following steps:
(1) the molybdenum base for being 99.995% using molybdenum content is raw material, and according to product needs, high speed twice is carried out using forcing press
Forging technology is processed, and each rapidity of blow is 120m/s, and the impact energy that molybdenum base is instantaneously born is 4.6MJ, pass deformation
It is 35%;
(2) twice by products obtained therefrom in cold rolling step (1), its total deformation is made to reach 30%, and rolling every time
Deflection it is identical;
(3) product after cold rolling is warming up to 900 DEG C with the rate of 240 DEG C/min, and keeps the temperature 80min, be prepared
Isotropic molybdenum plate.
Embodiment 2
A kind of preparation method of isotropism molybdenum plate, includes the following steps:
(1) the molybdenum base for being 99.992% using molybdenum content is raw material, and according to product needs, high speed three times is carried out using forcing press
Forging technology is processed, and each rapidity of blow is 100m/s, and the impact energy that molybdenum base is instantaneously born every time is 3MJ, passage deformation
Amount is 30%;
(2) products obtained therefrom is primary in 750 DEG C of warm-rolling milling steps (1), so that its total deformation is reached 20%, and roll every time
The deflection of system is identical;
(3) product after warm-rolling is warming up to 1000 DEG C with the rate of 200 DEG C/min, and keeps the temperature 60min, be prepared
Isotropic molybdenum plate.
Embodiment 3
A kind of preparation method of isotropism molybdenum plate, includes the following steps:
(1) the molybdenum base using molybdenum content more than 99.994% needs to carry out four height using forcing press according to product as raw material
Fast forging technology processing, each rapidity of blow are 110m/s, and the impact energy that molybdenum base is instantaneously born every time is 7MJ, and passage becomes
Shape amount is 50%;
(2) products obtained therefrom three times, makes its total deformation reach 28%, and every time in 1000 DEG C of warm-rolling milling steps (1)
The deflection of rolling is identical;
(3) product after warm-rolling is warming up to 1200 DEG C with the rate of 300 DEG C/min, and keeps the temperature 120min, be prepared into
To isotropic molybdenum plate.
Comparative example 1
Compared with Example 1, lack high-velocity forging technique in step (1), remaining process is same as Example 1.
Comparative example 2
Compared with Example 1, lack heating and heat preservation processing procedure in step (3), remaining process is same as Example 1.
Comparative example 3
Compared with Example 1, high-velocity forging technique is lacked in step (1), it is processed that heating and heat preservation is lacked in step (3)
Journey, remaining process are same as Example 1.
Detection
The various performance parameters for the molybdenum plate that Examples 1 to 3 and comparative example 1~3 are prepared are detected under the same terms,
The result is shown in tables 1.
1 molybdenum plate performance parameter of table compares
| Gap rate (%) | Impurity content (%) | Isotropism | |
| Embodiment 1 | 0.50 | 0.005 | It is |
| Embodiment 2 | 0.66 | 0.008 | It is |
| Embodiment 3 | 0.55 | 0.006 | It is |
| Comparative example 1 | 5.6 | 0.0018 | It is |
| Comparative example 2 | 1.32 | 0.001 | It is no |
| Comparative example 3 | 7.8 | 0.0019 | It is no |
From the data in table 1, it can be seen that the quality for the molybdenum plate that Examples 1 to 3 is prepared is above comparative example, wherein especially to implement
1 best results of example, the quality testing data of the molybdenum plate as obtained by comparative example 1~3 are it is found that at high-velocity forging technique and heating and heat preservation
The cooperation of the step of comprehending and have an immense impact on to molybdenum plate performance, only referring in the methods of the invention as a result, and technological parameter
Under, internal almost zero defect, and isotropic molybdenum plate can just be prepared.
Claims (5)
1. a kind of preparation method of isotropism molybdenum plate, which is characterized in that include the following steps:
(1) the molybdenum base using molybdenum content more than 99% is raw material, and at least twice by the processing of high-velocity forging technique, molybdenum plate is instantaneous every time
The impact energy born is 3~7MJ, and pass deformation is 30~50%;
(2) products obtained therefrom at least once, makes its total deformation reach 10~30% in milling step (1);
(3) product after rolling is warming up to 800~1200 DEG C, and keeps the temperature 60~120min, heating rate is 100~500
℃/min。
2. the preparation method of isotropism molybdenum plate according to claim 1, which is characterized in that high speed described in step (1)
The detailed process of forging technology is:Rapidity of blow is 100~120m/s;The impact energy that molybdenum base is instantaneously born every time is 4.6MJ,
Pass deformation is 35%.
3. the preparation method of isotropism molybdenum plate according to claim 1, which is characterized in that step rolls described in (2)
For warm-rolling or cold rolling.
4. the preparation method of isotropism molybdenum plate according to claim 3, which is characterized in that temperature during the warm-rolling
It is 750~1000 DEG C.
5. the preparation method of isotropism molybdenum plate according to claim 1, which is characterized in that temperature described in step (3)
It it is 900 DEG C, heating rate is 240 DEG C/min, and keeps the temperature 80min.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62134131A (en) * | 1985-12-06 | 1987-06-17 | Toshiba Corp | Manufacture of high purity molybdenum or tungsten |
| CN101956159A (en) * | 2010-09-30 | 2011-01-26 | 金堆城钼业股份有限公司 | Method for preparing high-purity molybdenum titanium sputtering target |
| CN102011076A (en) * | 2010-11-15 | 2011-04-13 | 宁夏东方钽业股份有限公司 | Processing technique of niobium alloy plate |
| CN102560383A (en) * | 2012-01-12 | 2012-07-11 | 宝鸡市科迪普有色金属加工有限公司 | Molybdenum niobium alloy plate target material processing technology |
| CN104190937A (en) * | 2014-06-19 | 2014-12-10 | 洛阳科威钨钼有限公司 | A preparation method of an ultra large fine-grain molybdenum electrode |
| CN104419901A (en) * | 2013-08-27 | 2015-03-18 | 宁波江丰电子材料股份有限公司 | Method for manufacturing tantalum target material |
| CN104624642A (en) * | 2015-01-12 | 2015-05-20 | 郑州通达重型机械制造有限公司 | Method for rolling large unit-weight and wide molybdenum plates for sputtering target material |
| US20160186311A1 (en) * | 2004-08-31 | 2016-06-30 | Brad Lemon | Methods of forming molybdenum sputtering targets |
| CN107022739A (en) * | 2017-05-19 | 2017-08-08 | 包头稀土研究院 | The manufacture method of sputter coating molybdenum rotary target material |
-
2018
- 2018-05-11 CN CN201810447470.0A patent/CN108687158B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62134131A (en) * | 1985-12-06 | 1987-06-17 | Toshiba Corp | Manufacture of high purity molybdenum or tungsten |
| US20160186311A1 (en) * | 2004-08-31 | 2016-06-30 | Brad Lemon | Methods of forming molybdenum sputtering targets |
| CN101956159A (en) * | 2010-09-30 | 2011-01-26 | 金堆城钼业股份有限公司 | Method for preparing high-purity molybdenum titanium sputtering target |
| CN102011076A (en) * | 2010-11-15 | 2011-04-13 | 宁夏东方钽业股份有限公司 | Processing technique of niobium alloy plate |
| CN102560383A (en) * | 2012-01-12 | 2012-07-11 | 宝鸡市科迪普有色金属加工有限公司 | Molybdenum niobium alloy plate target material processing technology |
| CN104419901A (en) * | 2013-08-27 | 2015-03-18 | 宁波江丰电子材料股份有限公司 | Method for manufacturing tantalum target material |
| CN104190937A (en) * | 2014-06-19 | 2014-12-10 | 洛阳科威钨钼有限公司 | A preparation method of an ultra large fine-grain molybdenum electrode |
| CN104624642A (en) * | 2015-01-12 | 2015-05-20 | 郑州通达重型机械制造有限公司 | Method for rolling large unit-weight and wide molybdenum plates for sputtering target material |
| CN107022739A (en) * | 2017-05-19 | 2017-08-08 | 包头稀土研究院 | The manufacture method of sputter coating molybdenum rotary target material |
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