CN106916999A - A kind of Ni original washing powders production technology - Google Patents

A kind of Ni original washing powders production technology Download PDF

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Publication number
CN106916999A
CN106916999A CN201710210697.9A CN201710210697A CN106916999A CN 106916999 A CN106916999 A CN 106916999A CN 201710210697 A CN201710210697 A CN 201710210697A CN 106916999 A CN106916999 A CN 106916999A
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CN
China
Prior art keywords
powder
original washing
washing powders
production technology
atomization
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CN201710210697.9A
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Chinese (zh)
Inventor
程敬卿
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Rebuilding Engineering Design Centre Anhui Co Ltd
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Rebuilding Engineering Design Centre Anhui Co Ltd
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Priority to CN201710210697.9A priority Critical patent/CN106916999A/en
Publication of CN106916999A publication Critical patent/CN106916999A/en
Pending legal-status Critical Current

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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
    • C22C19/007—Alloys based on nickel or cobalt with a light metal (alkali metal Li, Na, K, Rb, Cs; earth alkali metal Be, Mg, Ca, Sr, Ba, Al Ga, Ge, Ti) or B, Si, Zr, Hf, Sc, Y, lanthanides, actinides, as the next major constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/06—Metallic powder characterised by the shape of the particles
    • B22F1/065—Spherical particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • B22F2009/0824—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with a specific atomising fluid
    • B22F2009/0828—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with a specific atomising fluid with water

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)

Abstract

The present invention relates to a kind of Ni original washing powders production technology, the processing step is as follows：The first step, dispensing：Selection material and content are as follows：Cr is that 0.5~2%, B is that 2~4%, Si is that 10~14%, Fe is that 0.05~2%, C is 0.05~2%, balance of Ni；Second step, melting；3rd step, atomization；4th step, collection powder；5th step, drying；6th step, quality and service check to powder.Present invention process procedure rationally, realizes the production and processing to Ni original washing powders, it is ensured that the crudy of Ni original washing powders, hardness, the performance of mobility after the processing of Ni original washing powders is improved, to meet use requirement.

Description

A kind of Ni original washing powders production technology
Technical field
The present invention relates to welding processing technical field, specifically a kind of Ni original washing powders production technology.
Background technology
Nickel-base alloy refers to have intensity higher comprehensive with certain antioxidant anticorrosive ability etc. under 650~1000 DEG C of high temperature Close a class alloy of performance.Refractoloy is subdivided into according to main performance, abros, nickel-base antiwear alloy, Ni-based Precise Alloy and Ni-based marmem etc..High temperature alloy is divided into according to the difference of matrix：Iron-base superalloy, nickel Based high-temperature alloy and cobalt base superalloy.Wherein nickel base superalloy abbreviation nickel-base alloy.
However, traditional Ni original washing powders are due to processing technology arrangement and design unreasonable, the performance after causing Ni original washing powders to be made Differ greatly, finally influence whether the application field of Ni original washing powders and the effect of application, therefore in the urgent need to one kind can improve Ni The technique of original washing powder crudy.
The content of the invention
In order to solve deficiency of the prior art, the present invention proposes a kind of Ni original washing powders production technology.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of Ni original washing powders production technology, the processing step is as follows：
The first step, dispensing：Selection material and content are as follows：
Cr is that 0.5~2%, B is that 2~4%, Si is that 10~14%, Fe is that 0.05~2%, C is 0.05~2%, balance of Ni；
Second step, melting；
3rd step, atomization；
4th step, collection powder；
5th step, drying；
6th step, quality and service check to powder.
The step of melting, is as follows：
A) feeding sequence：Order according to Ni, C, B, Cr, Si is added in intermediate frequency furnace, and control furnace charge is not more than stove Three point one of thorax；
B) EF power should be made to be less than 60kw before load melting, it is to avoid over-current phenomenon avoidance is produced, when furnace charge is completely melt Afterwards, remaining dispensing is all added, while intermediate frequency furnace is added into full power to 120kw again；
C) after molten steel boiling, 2 minutes are stood, is skimmed；
D) skim after finishing, the glass for accounting for dispensing total amount 0.5% need to be added to continue intensification, quiet slag；
E) need to be slowly added into the SiCa powder for accounting for dispensing total amount 0.05%~1.5% before coming out of the stove；
F) when temperature reaches 1250 DEG C, in the case where confirming atomizing pressure in the range of, turndown enters atomization procedure.
The processing step of the atomization is as follows：
A) preparation：A certain amount of cold water is held before atomization, in atomization tank；
B) selection atomization nozzle diameter be 0.03~0.05mm, let slip a remark a diameter of 5~7mm, atomizing pressure be 200~ 500kg/mm2。
The state for verifying as checking powder of the 6th step, i.e. powder should be uniform, dry, and without any exotic, show Micro- Microscopic observation powder is spherical.
The verifying as of 6th step checks powder spray welding, i.e. surfacing inspection content includes：Deposition efficiency, from molten Property, the reflective situation of minute surface, whether there is stomata to be mingled with.
The surfacing coating hardness that verifies as of the 6th step is checked, i.e., measure surfacing sample with HLM-100 hardness leeb instruments Rockwell hardness.
6th step verifies as powder size inspection, i.e., shaken sieve using standard screen sampling 100g slap type standard screens Machine shakes 15 minutes, observes particle sizes.
Verify as powder flowbility, the apparent density of the 6th step are determined, i.e., using GB1479-84 and GB1480-84 Method measure powder mobility and apparent density.
The beneficial effects of the invention are as follows：Present invention process procedure rationally, realizes the production and processing to Ni original washing powders, it is ensured that The crudy of Ni original washing powders, improves hardness, the performance of mobility after the processing of Ni original washing powders, to meet use requirement.
Specific embodiment
In order that the technological means realized of the present invention, creation characteristic, reached purpose and effect are easy to understand, below it is right The present invention is expanded on further.
Embodiment one：
A kind of Ni original washing powders production technology, the processing step is as follows：
The first step, dispensing：Selection material and content are as follows：
Cr is that 0.5%, B is that 4%, Si is that 14%, Fe is that 0.05%, C is 2%, balance of Ni；
Second step, melting：
A) feeding sequence：Order according to Ni, C, B, Cr, Si is added in intermediate frequency furnace, and control furnace charge is not more than stove Three point one of thorax；
B) EF power should be made to be less than 60kw before load melting, it is to avoid over-current phenomenon avoidance is produced, when furnace charge is completely melt Afterwards, remaining dispensing is all added, while intermediate frequency furnace is added into full power to 120kw again；
C) after molten steel boiling, 2 minutes are stood, is skimmed；
D) skim after finishing, the glass for accounting for dispensing total amount 0.5% need to be added to continue intensification, quiet slag；
E) need to be slowly added into the SiCa powder for accounting for dispensing total amount 0.05% before coming out of the stove；
F) when temperature reaches 1250 DEG C, in the case where confirming atomizing pressure in the range of, turndown enters atomization procedure；
3rd step, atomization：
A) preparation：A certain amount of cold water is held before atomization, in atomization tank；
B) nozzle diameter of selection atomization is 0.03mm, and let slip a remark a diameter of 7mm, and atomizing pressure is 200kg/mm2；
4th step, collection powder；
5th step, drying；
6th step, quality and service check to powder：
A) state of powder is checked：
Powder should be uniform, dry, and without any exotic, basis of microscopic observation powder is spherical；
B) powder spray welding is checked：
Surfacing inspection content includes：The reflective situation of deposition efficiency, self-fluxing nature, minute surface, whether there is stomata to be mingled with；
C) surfacing coating hardness inspection：
The Rockwell hardness of surfacing sample is measured with HLM-100 hardness leeb instruments；
D) powder size：
Shaken 15 minutes using standard screen sampling 100g slap type vibrating sieving machine of standard sieve, observe particle sizes；
E) powder flowbility, apparent density are determined：
The mobility and apparent density of powder are measured using the method for GB1479-84 and GB1480-84.
After above-mentioned detection is qualified, you can packed.
Embodiment two：
A kind of Ni original washing powders production technology, the processing step is as follows：
The first step, dispensing：Selection material and content are as follows：
Cr is that 2%, B is that 2%, Si is that 10%, Fe is that 2%, C is 0.05%, balance of Ni；
Second step, melting：
A) feeding sequence：Order according to Ni, C, B, Cr, Si is added in intermediate frequency furnace, and control furnace charge is not more than stove Three point one of thorax；
B) EF power should be made to be less than 60kw before load melting, it is to avoid over-current phenomenon avoidance is produced, when furnace charge is completely melt Afterwards, remaining dispensing is all added, while intermediate frequency furnace is added into full power to 120kw again；
C) after molten steel boiling, 2 minutes are stood, is skimmed；
D) skim after finishing, the glass for accounting for dispensing total amount 0.5% need to be added to continue intensification, quiet slag；
E) need to be slowly added into the SiCa powder for accounting for dispensing total amount 1.5% before coming out of the stove；
F) when temperature reaches 1250 DEG C, in the case where confirming atomizing pressure in the range of, turndown enters atomization procedure；
3rd step, atomization：
A) preparation：A certain amount of cold water is held before atomization, in atomization tank；
B) nozzle diameter of selection atomization is 0.05mm, and let slip a remark a diameter of 5mm, and atomizing pressure is 300kg/mm2；
4th step, collection powder；
5th step, drying；
6th step, quality and service check to powder：The inspection is identical with the 6th step in embodiment one.
After above-mentioned detection is qualified, you can packed.
Embodiment three：
A kind of Ni original washing powders production technology, the processing step is as follows：
The first step, dispensing：Selection material and content are as follows：
Cr is that 1%, B is that 3%, Si is that 13%, Fe is that 1%, C is 1%, balance of Ni；
Second step, melting：
A) feeding sequence：Order according to Ni, C, B, Cr, Si is added in intermediate frequency furnace, and control furnace charge is not more than stove Three point one of thorax；
B) EF power should be made to be less than 60kw before load melting, it is to avoid over-current phenomenon avoidance is produced, when furnace charge is completely melt Afterwards, remaining dispensing is all added, while intermediate frequency furnace is added into full power to 120kw again；
C) after molten steel boiling, 2 minutes are stood, is skimmed；
D) skim after finishing, the glass for accounting for dispensing total amount 0.5% need to be added to continue intensification, quiet slag；
E) need to be slowly added into the SiCa powder for accounting for dispensing total amount 1% before coming out of the stove；
F) when temperature reaches 1250 DEG C, in the case where confirming atomizing pressure in the range of, turndown enters atomization procedure；
3rd step, atomization：
A) preparation：A certain amount of cold water is held before atomization, in atomization tank；
B) nozzle diameter of selection atomization is 0.04mm, and let slip a remark a diameter of 6mm, and atomizing pressure is 400kg/mm2；
4th step, collection powder；
5th step, drying；
6th step, quality and service check to powder：The inspection is identical with the 6th step in embodiment one.
After above-mentioned detection is qualified, you can packed.
Example IV：
A kind of Ni original washing powders production technology, the processing step is as follows：
The first step, dispensing：Selection material and content are as follows：
Cr is that 1.5%, B is that 3.5%, Si is that 12%, Fe is that 1.5%, C is 1.3%, balance of Ni；
Second step, melting：
A) feeding sequence：Order according to Ni, C, B, Cr, Si is added in intermediate frequency furnace, and control furnace charge is not more than stove Three point one of thorax；
B) EF power should be made to be less than 60kw before load melting, it is to avoid over-current phenomenon avoidance is produced, when furnace charge is completely melt Afterwards, remaining dispensing is all added, while intermediate frequency furnace is added into full power to 120kw again；
C) after molten steel boiling, 2 minutes are stood, is skimmed；
D) skim after finishing, the glass for accounting for dispensing total amount 0.5% need to be added to continue intensification, quiet slag；
E) need to be slowly added into the SiCa powder for accounting for dispensing total amount 1.2% before coming out of the stove；
F) when temperature reaches 1250 DEG C, in the case where confirming atomizing pressure in the range of, turndown enters atomization procedure；
3rd step, atomization：
A) preparation：A certain amount of cold water is held before atomization, in atomization tank；
B) nozzle diameter of selection atomization is 0.035mm, and let slip a remark a diameter of 6.5mm, and atomizing pressure is 500kg/mm2；
4th step, collection powder；
5th step, drying；
6th step, quality and service check to powder：The inspection is identical with the 6th step in embodiment one.
After above-mentioned detection is qualified, you can packed.
It is special to have carried out contrast test test after embodiment one to example IV implementation in order to prove the conclusion of the application, It is as follows respectively：
Experiment one：Testing graininess
By means of vibratory sieve screening, the vibratory sieve is the ultrasonic activation sieve of 325 mesh to the present invention, and wherein contrast groups are biography The Ni original washing powders that the Ni original washing powder techniques of system are made.From above-mentioned test data of experiment, after technical scheme, Ni bases Powder can not be no more than 3% by the particle fraction of 140 mesh, can not be not less than by 140 mesh but by the particle fraction of 325 mesh 92%, 5% can be no more than by the particle fraction of 325 mesh；And contrast groups can not be 9.3% by 140 mesh sieve ratios, can pass through 140 mesh sieves but can not by 325 mesh sieve ratios be 90.1%, can by 325 mesh sieve ratios be 0.6%.It is of the invention as can be seen here The crudy of Ni original washing powders is greatly improved, so as to ensure that the performance of Ni original washing powders, is improved hard after Ni original washing powders are processed Degree, the performance of mobility.
Experiment two：Hardness test
From testing two data, the coating hardness formed after Ni original washing powders surfacing of the present invention is contrasted up to more than 69HRc Group only has 46HRc, and hardness is obviously improved.
General principle of the invention, principal character and advantages of the present invention has been shown and described above.The technology of the industry Personnel it should be appreciated that the present invention is not limited by step embodiment, the simply present invention described in step embodiment and specification Principle, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these change and Improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appending claims and its equivalent Thing is defined.

Claims (8)

1. a kind of Ni original washing powders production technology, it is characterised in that：The processing step is as follows：
The first step, dispensing：Selection material and content are as follows：
Cr is that 0.5~2%, B is that 2~4%, Si is that 10~14%, Fe is that 0.05~2%, C is 0.05~2%, balance of Ni；
Second step, melting；
3rd step, atomization；
4th step, collection powder；
5th step, drying；
6th step, quality and service check to powder.
2. a kind of Ni original washing powders production technology according to claim 1, it is characterised in that：The step of melting, is as follows：
A) feeding sequence：Order according to Ni, C, B, Cr, Si is added in intermediate frequency furnace, and control furnace charge is not more than burner hearth Three point one；
B) EF power should be made to be less than 60kw before load melting, it is to avoid produce over-current phenomenon avoidance, after furnace charge is completely melt, will Remaining dispensing is all added, while intermediate frequency furnace is added into full power to 120kw again；
C) after molten steel boiling, 2 minutes are stood, is skimmed；
D) skim after finishing, the glass for accounting for dispensing total amount 0.5% need to be added to continue intensification, quiet slag；
E) need to be slowly added into the SiCa powder for accounting for dispensing total amount 0.05%~1.5% before coming out of the stove；
F) when temperature reaches 1250 DEG C, in the case where confirming atomizing pressure in the range of, turndown enters atomization procedure.
3. a kind of Ni original washing powders production technology according to claim 1, it is characterised in that：The processing step of the atomization is such as Under：
A) preparation：A certain amount of cold water is held before atomization, in atomization tank；
B) nozzle diameter of selection atomization is 0.03~0.05mm, and let slip a remark a diameter of 5~7mm, and atomizing pressure is 200~500kg/ mm2。
4. a kind of Ni original washing powders production technology according to claim 1, it is characterised in that：6th step verify as check The state of powder, i.e. powder should be uniform, dry, and without any exotic, basis of microscopic observation powder is spherical.
5. a kind of Ni original washing powders production technology according to claim 1, it is characterised in that：6th step verify as check Powder spray welding, i.e. surfacing inspection content includes：The reflective situation of deposition efficiency, self-fluxing nature, minute surface, whether there is stomata to be mingled with.
6. a kind of Ni original washing powders production technology according to claim 1, it is characterised in that：6th step verifies as surfacing Coating hardness is checked, i.e., the Rockwell hardness of surfacing sample is measured with HLM-100 hardness leeb instruments.
7. a kind of Ni original washing powders production technology according to claim 1, it is characterised in that：6th step verifies as powder Sizing test, i.e., shaken 15 minutes using standard screen sampling 100g slap type vibrating sieving machine of standard sieve, observes particle sizes.
8. a kind of Ni original washing powders production technology according to claim 1, it is characterised in that：6th step verifies as powder Mobility, apparent density determine, i.e., using GB1479-84 and GB1480-84 method measure powder mobility and pine fill it is close Degree.
CN201710210697.9A 2017-03-31 2017-03-31 A kind of Ni original washing powders production technology Pending CN106916999A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4913752A (en) * 1987-09-29 1990-04-03 Vacuumschmelze Gmbh Nickel-based solder for high-temperature soldered joints
CN102899664A (en) * 2012-11-15 2013-01-30 丹阳惠达模具材料科技有限公司 Laser cladding alloy powder and preparation method thereof
CN102912188A (en) * 2012-11-15 2013-02-06 江苏新亚特钢锻造有限公司 Laser cladding nickel-based alloy powder and preparation method thereof
CN105349844A (en) * 2015-11-29 2016-02-24 印杰 Laser cladding alloy powder with high wear resistance and preparation method thereof
CN106544548A (en) * 2017-01-17 2017-03-29 苏州艾盾合金材料有限公司 A kind of nickel-bass alloy material of wear-resisting hydrofluoric acid corrosion resistance and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4913752A (en) * 1987-09-29 1990-04-03 Vacuumschmelze Gmbh Nickel-based solder for high-temperature soldered joints
CN102899664A (en) * 2012-11-15 2013-01-30 丹阳惠达模具材料科技有限公司 Laser cladding alloy powder and preparation method thereof
CN102912188A (en) * 2012-11-15 2013-02-06 江苏新亚特钢锻造有限公司 Laser cladding nickel-based alloy powder and preparation method thereof
CN105349844A (en) * 2015-11-29 2016-02-24 印杰 Laser cladding alloy powder with high wear resistance and preparation method thereof
CN106544548A (en) * 2017-01-17 2017-03-29 苏州艾盾合金材料有限公司 A kind of nickel-bass alloy material of wear-resisting hydrofluoric acid corrosion resistance and preparation method thereof

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Application publication date: 20170704