CN109825752A - A kind of low melting point nickel tungsten intermediate alloy and its preparation process - Google Patents
A kind of low melting point nickel tungsten intermediate alloy and its preparation process Download PDFInfo
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- CN109825752A CN109825752A CN201910222432.XA CN201910222432A CN109825752A CN 109825752 A CN109825752 A CN 109825752A CN 201910222432 A CN201910222432 A CN 201910222432A CN 109825752 A CN109825752 A CN 109825752A
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Abstract
The invention discloses a kind of low melting point nickel tungsten intermediate alloys, are formed by following raw material proportioning, tungsten powder 38-55%, nickel surplus；Tungsten powder purity >=99.95%, granularity >=100 mesh；When nickel tungsten prepares special steel and high-temperature alloy material as additive, the characteristic with low melting point, and reached nickel powder and tungsten point and all had eutectic dot characteristics under different proportions, temperature, pressure and soaking time.The invention also discloses a kind of preparation processes of low melting point nickel tungsten intermediate alloy, the following steps are included: S1, raw material preparation: S2, mixing: S3, molding: S4, high temperature sintering: S5, be crushed: the step of preparation process and experiment concrete operations are simple, and experimental result is ideal.
Description
Technical field
The present invention relates to field of alloy preparation technology more particularly to a kind of low melting point nickel tungsten intermediate alloy and its preparation works
Skill.
Background technique
Tungsten is widely used in filament, calandria and heat screen, but is more applied to prepare special steel and high temperature alloy
The additive of material preparation is added with improving the heat resistance and other mechanical properties of special steel or high-temperature alloy material by tungsten
High-temperature resistant alloy material made of agent is widely used in the components on aircraft, automobile, steamer and large-scale turbogenerator.So
And tungsten is due to its fusing point height (for 3422C °), as additive when preparing special steel and high-temperature alloy material, wolfram element
It adds relatively difficult, and expends high-energy source, and tungsten prepares special steel as additive and high-temperature alloy material is from now on
The important trend of technology development.Tungsten, which how to be reduced, as the high-melting-point of additive becomes technical problem, and a kind of eutectic is sought in effort
Nickel tungsten additive is put to prepare special steel and high-temperature alloy material.
Summary of the invention
In view of the above problems, the present invention is intended to provide a kind of low melting point nickel tungsten intermediate alloy and its preparation process,
Characteristic with low melting point has reached 1495 DEG C.
To achieve the goals above, the technical solution adopted in the present invention is as follows: a kind of low melting point nickel tungsten intermediate alloy, by
Following raw material proportioning forms tungsten powder 38-55%, nickel surplus；
Tungsten powder purity >=99.95%, granularity >=100 mesh；
Nickel powder purity >=99.70%, granularity >=100 mesh.
Preferably, a kind of low melting point nickel tungsten intermediate alloy, is formed by following raw material proportioning, tungsten powder 45%, nickel powder 55%.
A kind of preparation process of low melting point nickel tungsten intermediate alloy, it is characterised in that: the following steps are included:
S1, raw material preparation:
According to following proportion choose raw material, tungsten powder 38~55%, nickel powder surplus,
Wherein, the purity of tungsten powder is >=99.95%, granularity >=100 mesh, nickel powder Ni >=99.70%, granularity >=100 mesh；
S2, mixing:
The tungsten powder chosen is mixed with nickel powder and is packed into batch mixer progress mixing, mixing time is >=4h；
S3, molding:
By mixed powder by forming on isostatic pressing machine or hydraulic press, circular blank or stock of square is made；
Molding pressure is >=200Mpa/cm2；
S4, high temperature sintering:
High temperature sintering is carried out to circular blank or stock of square, the sintering temperature is 800C~1450C °, in vacuum or
Under the conditions of gas shield, 4-8 hours are kept the temperature；
S5, it is crushed:
To after high temperature sintering circular blank or stock of square be crushed, particle size after cracking 20-100mm.
Preferably, in S2, the incorporation time of the tungsten powder and nickel powder is 5h.
Preferably, in S3, the briquetting pressure of the hydraulic press or isostatic pressing machine is 500Mpa/cm2。
Preferably, in S3, the sintering temperature is 1000C °, soaking time 6h.
The beneficial effects of the present invention are: compared with prior art, of the invention thes improvement is that,
1, shown that nickel tungsten intermediate alloy prepares special steel and high-temperature alloy material as additive by testing repeatedly
When, the characteristic with low melting point has reached 1495 DEG C.And nickel powder and tungsten point are reached in different proportions, temperature, pressure
And eutectic dot characteristics are all had under soaking time.
2, nickel tungsten intermediate alloy prepares special steel and high-temperature alloy material as additive, improves special steel and height
Temperature alloy material mechanical performance.
3, nickel tungsten intermediate alloy prepares special steel and high-temperature alloy material as additive, in smelting process, has
Energy-efficient effect.
Detailed description of the invention
Fig. 1 is nickel tungsten phasor of the present invention.
Specific embodiment
In order to make those skilled in the art be better understood on technical solution of the present invention, with reference to the accompanying drawing and
Embodiment is further described technical solution of the present invention.
A kind of low melting point nickel tungsten intermediate alloy forms tungsten powder 38-55%, nickel surplus by following raw material proportioning；The tungsten powder
Purity >=99.95%, granularity >=100 mesh；Nickel powder purity >=99.70%, granularity >=100 mesh.
Preferably, a kind of low melting point nickel tungsten intermediate alloy, is formed by following raw material proportioning, tungsten powder 45%, nickel powder 55%, institute
Intermediate alloy made of the proportion of tungsten powder and nickel powder is stated as additive when preparing high-temperature alloy material, has reached 1495 DEG C
Low melting point.
A kind of preparation process of low melting point nickel tungsten intermediate alloy, comprising the following steps:
S1, raw material preparation:
According to following proportion choose raw material, tungsten powder 38~55%, nickel powder surplus,
Wherein, the purity of tungsten powder is >=99.95%, granularity >=100 mesh, nickel powder Ni >=99.70%, granularity >=100 mesh；
S2, mixing:
The tungsten powder chosen is mixed with nickel powder and is packed into batch mixer progress mixing, mixing time is >=4h；Wherein tungsten powder, nickel powder
Mass ratio require to implement proportion according to the different trades mark or user；
S3, molding:
By mixed powder by forming on isostatic pressing machine or hydraulic press, circular blank or stock of square is made；It is molding
Pressure is >=200Mpa/cm2；
S4, high temperature sintering:
High temperature sintering is carried out to circular blank or stock of square, the sintering temperature is 900~1350C °, in vacuum or gas
Under body protective condition, 4-8 hours are kept the temperature；
S5, it is crushed:
To after high temperature sintering circular blank or stock of square be crushed, particle size after cracking 20-100mm.
Embodiment one:
A kind of low melting point nickel tungsten intermediate alloy forms tungsten powder 45%, nickel powder 55% by following raw material proportioning；The tungsten powder is pure
Spend 99.96%, 120 mesh of granularity；The nickel powder purity 99.80%, 150 mesh of granularity.The preparation of the embodiment nickel tungsten intermediate alloy
S1, raw material preparation: technique chooses raw material, tungsten powder 45%, nickel powder 55% according to following proportion；The purity of the tungsten powder is
99.96%, 120 mesh of granularity；The nickel powder purity is 99.80%, 150 mesh of granularity；S2, mixing: by the tungsten powder chosen and nickel powder
Mixing is packed into batch mixer and carries out mixing, mixing time 5h；S3, molding: mixed powder is passed through into isostatic pressing machine or hydraulic press
Circular blank or stock of square is made in upper molding；Molding pressure is 500Mpa/cm2；S4, high temperature sintering: to circular blank or
Stock of square carries out high temperature sintering, and the sintering temperature is 1000C °, under the conditions of vacuum or gas shield, keeps the temperature 6 hours；
It is S5, broken: to after high temperature sintering circular blank or stock of square be crushed, particle size after cracking 30-50mm.
The nickel tungsten intermediate alloy prepared by the embodiment one, when preparing high-temperature alloy material, reaches as additive
1495 DEG C of low melting point, and the addition of nickel, wolfram element is easier to, and is evenly distributed, the energy has both been saved in high-temperature smelting process,
Also further improve the mechanical property of high-temperature material.
Embodiment two:
A kind of low melting point nickel tungsten intermediate alloy forms tungsten powder 48%, nickel powder 52% by following raw material proportioning；The tungsten powder is pure
Spend 99.97%, 150 mesh of granularity；The nickel powder purity 99.90%, 180 mesh of granularity.The preparation of the embodiment nickel tungsten intermediate alloy
S1, raw material preparation: technique chooses raw material, tungsten powder 48%, nickel powder 52% according to following proportion；The purity of the tungsten powder is
99.97%, 150 mesh of granularity；The nickel powder purity is 99.90%, 180 mesh of granularity；S2, mixing: by the tungsten powder chosen and nickel powder
Mixing is packed into batch mixer and carries out mixing, mixing time 8h；S3, molding: mixed powder is passed through into isostatic pressing machine or hydraulic press
Circular blank or stock of square is made in upper molding；Molding pressure is 400Mpa/cm2；S4, high temperature sintering: to circular blank or
Stock of square carries out high temperature sintering, and the sintering temperature is 1200C °, under the conditions of vacuum or gas shield, keeps the temperature 6 hours；
It is S5, broken: to after high temperature sintering circular blank or stock of square be crushed, particle size after cracking 50-70mm.
The nickel tungsten intermediate alloy prepared by the embodiment two, when preparing high-temperature alloy material, reaches as additive
1520 DEG C of low melting point, and the addition of nickel, wolfram element is easier to, and is evenly distributed, the energy has both been saved in high-temperature smelting process,
Also further improve the mechanical property of high-temperature material.
Embodiment three:
A kind of low melting point nickel tungsten intermediate alloy forms tungsten powder 50%, nickel powder 50% by following raw material proportioning；The tungsten powder is pure
Spend 99.98%, 200 mesh of granularity；The nickel powder purity 99.90%, 220 mesh of granularity.The preparation of the embodiment nickel tungsten intermediate alloy
S1, raw material preparation: technique chooses raw material, tungsten powder 50%, nickel powder 50% according to following proportion；The purity of the tungsten powder is
99.98%, 200 mesh of granularity；The nickel powder purity is 99.90%, 220 mesh of granularity；S2, mixing: by the tungsten powder chosen and nickel powder
Mixing is packed into batch mixer and carries out mixing, mixing time 10h；S3, molding: mixed powder is passed through into isostatic pressing machine or hydraulic press
Circular blank or stock of square is made in upper molding；Molding pressure is 500Mpa/cm2；S4, high temperature sintering: to circular blank or
Stock of square carries out high temperature sintering, and the sintering temperature is 1300C °, under the conditions of vacuum or gas shield, keeps the temperature 7 hours；
It is S5, broken: to after high temperature sintering circular blank or stock of square be crushed, particle size after cracking 70-90mm.
The nickel tungsten intermediate alloy prepared by the embodiment three, when preparing high-temperature alloy material, reaches as additive
1530 DEG C of low melting point, and the addition of nickel, wolfram element is easier to, and is evenly distributed, the energy has both been saved in high-temperature smelting process,
Also further improve the mechanical property of high-temperature material.
The principle of the present invention is: having shown that nickel powder and tungsten powder as alloy addition constituent exist by testing repeatedly
With the characteristic of low melting point under different proportion, temperature, pressure and soaking time, and energy is saved in high-temperature smelting process
Source also further improves the mechanical property of high-temperature material.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (6)
1. a kind of low melting point nickel tungsten intermediate alloy, it is characterised in that: form tungsten powder 38-55%, nickel surplus by following raw material proportioning；
Tungsten powder purity >=99.95%, granularity >=100 mesh；
Nickel powder purity >=99.70%, granularity >=100 mesh.
2. a kind of low melting point nickel tungsten intermediate alloy according to claim 1, it is characterised in that: by following raw material proportioning
At tungsten powder 45%, nickel powder 55%.
3. a kind of preparation process of low melting point nickel tungsten intermediate alloy according to claim 1, it is characterised in that: including following
Step:
S1, raw material preparation:
According to following proportion choose raw material, tungsten powder 38~55%, nickel powder surplus,
Wherein, the purity of tungsten powder is >=99.95%, granularity >=100 mesh, nickel powder Ni >=99.70%, granularity >=100 mesh；
S2, mixing:
The tungsten powder chosen is mixed with nickel powder and is packed into batch mixer progress mixing, mixing time is >=4h；
S3, molding:
By mixed powder by forming on isostatic pressing machine or hydraulic press, circular blank or stock of square is made；Molding pressure
For >=200Mpa/cm2；
S4, high temperature sintering:
High temperature sintering is carried out to circular blank or stock of square, the sintering temperature is 800C~1450C ° °, in vacuum or gas
Under protective condition, 4-8 hours are kept the temperature；
S5, it is crushed:
To after high temperature sintering circular blank or stock of square be crushed, particle size after cracking 20-100mm.
4. a kind of preparation process of low melting point nickel tungsten intermediate alloy according to claim 3, it is characterised in that: in S2,
The incorporation time of the tungsten powder and nickel powder is 5h.
5. a kind of preparation process of low melting point nickel tungsten intermediate alloy according to claim 4, it is characterised in that: in S3,
The briquetting pressure of the hydraulic press or isostatic pressing machine is 500Mpa/cm2。
6. a kind of preparation process of low melting point nickel tungsten intermediate alloy according to claim 5, it is characterised in that: in S4,
The sintering temperature is 1000C °, soaking time 6h.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110358947A (en) * | 2019-07-31 | 2019-10-22 | 江苏美特林科特殊合金股份有限公司 | A kind of nickel tungsten intermediate alloy and its preparation method and application for high temperature alloy melting |
| CN110484778A (en) * | 2019-09-30 | 2019-11-22 | 陕西瑞有金属科技有限公司 | A kind of intermediate alloy being used to prepare cobalt-base alloys and its preparation process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08170131A (en) * | 1994-12-14 | 1996-07-02 | Sumitomo Special Metals Co Ltd | Sintered compact for hot tool |
| US20090022614A1 (en) * | 2007-07-18 | 2009-01-22 | Sanyo Special Steel Co., Ltd. | Method for Producing Sputtering Target Material for Ni-W Based Interlayer |
| CN105239043A (en) * | 2015-10-22 | 2016-01-13 | 厦门映日新材料科技有限公司 | Electrochromic glass tungsten-nickel alloy target and preparation method thereof |
| CN105849633A (en) * | 2013-12-20 | 2016-08-10 | 攀时奥地利公司 | W-Ni sputter target |
| CN108754200A (en) * | 2018-08-28 | 2018-11-06 | 马林生 | A kind of nickel molybdenum intermediate alloy preparation process |
| CN108796332A (en) * | 2018-06-14 | 2018-11-13 | 马林生 | A kind of production technology of high-purity ferro-tungsten |
-
2019
- 2019-03-22 CN CN201910222432.XA patent/CN109825752A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08170131A (en) * | 1994-12-14 | 1996-07-02 | Sumitomo Special Metals Co Ltd | Sintered compact for hot tool |
| US20090022614A1 (en) * | 2007-07-18 | 2009-01-22 | Sanyo Special Steel Co., Ltd. | Method for Producing Sputtering Target Material for Ni-W Based Interlayer |
| CN105849633A (en) * | 2013-12-20 | 2016-08-10 | 攀时奥地利公司 | W-Ni sputter target |
| CN105239043A (en) * | 2015-10-22 | 2016-01-13 | 厦门映日新材料科技有限公司 | Electrochromic glass tungsten-nickel alloy target and preparation method thereof |
| CN108796332A (en) * | 2018-06-14 | 2018-11-13 | 马林生 | A kind of production technology of high-purity ferro-tungsten |
| CN108754200A (en) * | 2018-08-28 | 2018-11-06 | 马林生 | A kind of nickel molybdenum intermediate alloy preparation process |
Non-Patent Citations (1)
| Title |
|---|
| 梁基谢夫: "镍-钨", 《金属二元系相图手册》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110358947A (en) * | 2019-07-31 | 2019-10-22 | 江苏美特林科特殊合金股份有限公司 | A kind of nickel tungsten intermediate alloy and its preparation method and application for high temperature alloy melting |
| CN110358947B (en) * | 2019-07-31 | 2021-03-19 | 江苏美特林科特殊合金股份有限公司 | Nickel-tungsten intermediate alloy for smelting high-temperature alloy and preparation method and application thereof |
| CN110484778A (en) * | 2019-09-30 | 2019-11-22 | 陕西瑞有金属科技有限公司 | A kind of intermediate alloy being used to prepare cobalt-base alloys and its preparation process |
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Application publication date: 20190531 |