CN108754200A - A kind of nickel molybdenum intermediate alloy preparation process - Google Patents
A kind of nickel molybdenum intermediate alloy preparation process Download PDFInfo
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- CN108754200A CN108754200A CN201810984448.XA CN201810984448A CN108754200A CN 108754200 A CN108754200 A CN 108754200A CN 201810984448 A CN201810984448 A CN 201810984448A CN 108754200 A CN108754200 A CN 108754200A
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- nickel
- molybdenum
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- intermediate alloy
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0433—Nickel- or cobalt-based alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/045—Alloys based on refractory metals
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/04—Alloys based on tungsten or molybdenum
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- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
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Abstract
A kind of nickel molybdenum intermediate alloy preparation process, it is characterised in that include the following steps：A, it stocks up：Select nickel powder, it is desirable that：Purity >=99.5%, the mesh of granularity >=100；Select molybdenum powder, it is desirable that：Purity >=99.5%, the mesh of granularity >=100；B, batch mixing：According to mass fraction：Remaining is mixed molybdenum powder 30%-60% for nickel powder, and molybdenum powder and nickel powder are uniformly mixed；C, it is molded：It is more than 200MPa/cm in unit pressure2Under to nickel molybdenum mixed-powder implement compression forming, obtain blank；D, it is sintered：Under vacuum or gas shield environment, blank is kept the temperature 4-8 hours at 800 DEG C -1350 DEG C, obtains nickel-molybdenum alloy finished product.
Description
Technical field
The present invention relates to a kind of preparation processes of alloy, particularly with regard to the preparation process of nickel molybdenum intermediate alloy.
Background technology
Molybdenum is added in nickel-base alloy, and the performances such as the heat resistance of nickel alloy can be made to be improved, added in titanium-base alloy
Nickel, molybdenum can improve the heat-resisting of titanium alloy and other performances, but addition molybdenum element is relatively difficult, the reason is that the fusing point of molybdenum is 2622
DEG C, previous manufacturer is mainly oneself produces nickel molybdenum intermediate alloy using method of smelting, and melting rear car cuts to be processed into and is easy to add
The state added, there are the non-uniform inadequate natural endowments of composition for the method, and lacking for composition segregation is still be easy to cause in producing from now on
It falls into.
Invention content
In order to solve deficiency in the prior art, a kind of pollution-free and finished product purity is high nickel-molybdenum alloy preparation side is provided
Method, the technical solution adopted in the present invention are：
A kind of nickel molybdenum intermediate alloy preparation process, includes the following steps：
A, it stocks up：Select nickel powder, it is desirable that：Purity >=99.5%, the mesh of granularity >=100；Select molybdenum powder, it is desirable that：Purity >=
99.5%, the mesh of granularity >=100；
B, batch mixing：According to mass fraction：Remaining is mixed molybdenum powder 30%-60% for nickel powder, and molybdenum powder and nickel powder are mixed
Uniformly；
C, it is molded：It is more than 200MPa/cm in unit pressure2Under to nickel molybdenum mixed-powder implement compression forming, obtain blank；
D, it is sintered：Under vacuum or gas shield environment, blank is kept the temperature 4-8 hours at 800 DEG C -1350 DEG C, is obtained
To nickel-molybdenum alloy finished product.
Increase step e after step d, be crushed：Nickel-molybdenum alloy finished product is broken into granularity within the scope of 10mm-100mm
Fragment.
Batch mixer is used to implement batch mixing 1-4 hours to nickel, molybdenum powder in stepb.
Compression forming is implemented using hydraulic press or isostatic pressing machine in step c.
Sintering is implemented using high temperature sintering furnace or vertical sintering furnace in step d.
It is using process advantageous effect above：Using the principle of powder metallurgy, by the metal nickel powder and height of high-purity
After the alloy designations ratio mixing that purity molybdenum powder produces as required, after compression forming, then by being sintered at high temperature into nickel molybdenum
Intermediate alloy, this method is pollution-free, and the nickel-molybdenum alloy purity produced is very high, can be produce high-quality nickel-base alloy or
Titanium-base alloy provides safeguard.
Specific implementation mode
A kind of nickel molybdenum intermediate alloy preparation process provided by the invention, step include：
A, it stocks up：Select nickel powder, it is desirable that：Purity >=99.5%, the mesh of granularity >=100；Select molybdenum powder, it is desirable that：Purity >=
99.5%, the mesh of granularity >=100；
B, batch mixing：According to mass fraction：Remaining is mixed molybdenum powder 30%-60% for nickel powder, and molybdenum powder and nickel powder are mixed
It closes uniform；
C, it is molded：It is more than 200MPa/cm in unit pressure2Under to nickel molybdenum mixed-powder implement compression forming, obtain blank；
D, it is sintered：Under vacuum or gas shield environment, blank is kept the temperature 4-8 hours at 800 DEG C -1350 DEG C, is obtained
To nickel-molybdenum alloy finished product.
In addition to above-mentioned steps, step e can be increased, be crushed, nickel-molybdenum alloy finished product is broken into granularity in 10mm-100mm
The fragment (referring to that size the best part is within the scope of 10mm-100mm in the fragment) of range, obtained fragment can directly exist
It is used as intermediate alloy in smelting.
Nickel powder and molybdenum powder are mixed using batch mixer in step b, mixing time was at 1-4 hours.Wherein nickel powder, molybdenum powder
Mass ratio require to implement proportioning according to the different trades mark or user.
Using hydraulic press, either isostatic pressing machine implements compression forming forming shape usually with round or rectangular in step c.
Sintering is implemented using high temperature sintering furnace or vertical sintering furnace in step d, metal recrystallizes and forms alloy at high temperature
Tissue achievees the purpose that alloy.
Claims (5)
1. a kind of nickel molybdenum intermediate alloy preparation process, it is characterised in that include the following steps：
A, it stocks up：Select nickel powder, it is desirable that：Purity >=99.5%, the mesh of granularity >=100；Select molybdenum powder, it is desirable that：Purity >=99.5%,
The mesh of granularity >=100；
B, batch mixing：According to mass fraction：Remaining is mixed molybdenum powder 30%-60% for nickel powder, and molybdenum powder and nickel powder are uniformly mixed；
C, it is molded：It is more than 200MPa/cm in unit pressure2Under to nickel molybdenum mixed-powder implement compression forming, obtain blank；
D, it is sintered：Under vacuum or gas shield environment, blank is kept the temperature 4-8 hours at 800 DEG C -1350 DEG C, obtains nickel
Molybdenum alloy finished product.
2. a kind of nickel molybdenum intermediate alloy preparation process according to claim 1, it is characterised in that：Increase step after step d
Rapid e, it is crushed：Nickel-molybdenum alloy finished product is broken into fragment of the granularity within the scope of 10mm-100mm.
3. a kind of nickel molybdenum intermediate alloy preparation process according to claim 1 or 2, it is characterised in that：It uses in stepb
Batch mixer implements batch mixing 1-4 hours to nickel powder and molybdenum powder.
4. a kind of nickel molybdenum intermediate alloy preparation process according to claim 1 or 2, it is characterised in that：It is used in step c
Hydraulic press or isostatic pressing machine implement compression forming.
5. a kind of nickel molybdenum intermediate alloy preparation process according to claim 1 or 2, it is characterised in that：It is used in step d
High temperature sintering furnace or vertical sintering furnace implement sintering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810984448.XA CN108754200A (en) | 2018-08-28 | 2018-08-28 | A kind of nickel molybdenum intermediate alloy preparation process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810984448.XA CN108754200A (en) | 2018-08-28 | 2018-08-28 | A kind of nickel molybdenum intermediate alloy preparation process |
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| Publication Number | Publication Date |
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| CN108754200A true CN108754200A (en) | 2018-11-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109825752A (en) * | 2019-03-22 | 2019-05-31 | 陕西瑞有金属科技有限公司 | A kind of low melting point nickel tungsten intermediate alloy and its preparation process |
| 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 |
| CN110551919A (en) * | 2019-09-23 | 2019-12-10 | 西安赛特金属材料开发有限公司 | Preparation method of titanium-molybdenum alloy |
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| CN101519744A (en) * | 2009-04-14 | 2009-09-02 | 重庆大学 | Magnesium-manganese master alloy prepared by powder metallurgy method and preparation method thereof |
| CN103173728A (en) * | 2011-12-22 | 2013-06-26 | 日立金属株式会社 | Manufacturing method of Mo alloy sputtering target materials and sputtering target materials |
| CN103540775A (en) * | 2013-10-10 | 2014-01-29 | 宝鸡市辰炎金属材料有限公司 | Nickel-molybdenum intermediate alloy preparation method for smelting TA10 cast ingot |
| CN103938029A (en) * | 2014-04-24 | 2014-07-23 | 武侗 | Intermediate alloy nickel-molybdenum 30 additive for titanium-molybdenum-nickel-titanium alloy ingot, as well as production method |
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2018
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Patent Citations (4)
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| CN101519744A (en) * | 2009-04-14 | 2009-09-02 | 重庆大学 | Magnesium-manganese master alloy prepared by powder metallurgy method and preparation method thereof |
| CN103173728A (en) * | 2011-12-22 | 2013-06-26 | 日立金属株式会社 | Manufacturing method of Mo alloy sputtering target materials and sputtering target materials |
| CN103540775A (en) * | 2013-10-10 | 2014-01-29 | 宝鸡市辰炎金属材料有限公司 | Nickel-molybdenum intermediate alloy preparation method for smelting TA10 cast ingot |
| CN103938029A (en) * | 2014-04-24 | 2014-07-23 | 武侗 | Intermediate alloy nickel-molybdenum 30 additive for titanium-molybdenum-nickel-titanium alloy ingot, as well as production method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109825752A (en) * | 2019-03-22 | 2019-05-31 | 陕西瑞有金属科技有限公司 | A kind of low melting point nickel tungsten intermediate alloy and its preparation process |
| CN110551919A (en) * | 2019-09-23 | 2019-12-10 | 西安赛特金属材料开发有限公司 | Preparation method of titanium-molybdenum alloy |
| 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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