CN106834797B - A kind of formula and preparation method thereof of adonic dusty material - Google Patents
A kind of formula and preparation method thereof of adonic dusty material Download PDFInfo
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- CN106834797B CN106834797B CN201610930991.2A CN201610930991A CN106834797B CN 106834797 B CN106834797 B CN 106834797B CN 201610930991 A CN201610930991 A CN 201610930991A CN 106834797 B CN106834797 B CN 106834797B
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- 239000000463 material Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 29
- 238000009472 formulation Methods 0.000 title description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 56
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910052802 copper Inorganic materials 0.000 claims abstract description 47
- 239000010949 copper Substances 0.000 claims abstract description 47
- 239000000843 powder Substances 0.000 claims abstract description 37
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 31
- 239000000956 alloy Substances 0.000 claims abstract description 31
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 28
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 28
- 238000002844 melting Methods 0.000 claims abstract description 21
- 230000008018 melting Effects 0.000 claims abstract description 21
- 238000000889 atomisation Methods 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 19
- 238000003723 Smelting Methods 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000012216 screening Methods 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 18
- 239000012535 impurity Substances 0.000 claims description 10
- 239000012298 atmosphere Substances 0.000 claims description 6
- 239000003610 charcoal Substances 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 6
- 238000012797 qualification Methods 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims 1
- 238000007670 refining Methods 0.000 claims 1
- 238000012387 aerosolization Methods 0.000 abstract description 2
- 239000011135 tin Substances 0.000 description 23
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000004615 ingredient Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- PPIIGEJBVZHNIN-UHFFFAOYSA-N [Cu].[Sn].[Pb] Chemical class [Cu].[Sn].[Pb] PPIIGEJBVZHNIN-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- CLDVQCMGOSGNIW-UHFFFAOYSA-N nickel tin Chemical compound [Ni].[Sn] CLDVQCMGOSGNIW-UHFFFAOYSA-N 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000009692 water atomization Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/06—Alloys based on copper with nickel or cobalt 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
- 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
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/02—Alloys based on copper with tin 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
- 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
- B22F2009/0848—Melting process before atomisation
-
- 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
- B22F2009/088—Fluid nozzles, e.g. angle, distance
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of formulas and preparation method thereof of adonic dusty material, and wherein method includes the following steps, the first step：Melting selects mass percent for 95~97% copper, and 1.5~3% nickel, 1~2.5% tin is heated to 1085~1100 DEG C, adds nickel and tin, forms aluminium alloy, 1250~1350 DEG C of smelting temperature, smelting time 20~25 minutes；Second step：Composition Control is cooled to 1200~1250 DEG C after detection is qualified；Third walks：Atomization, is injected bottom pour ladle by aluminium alloy after slagging-off, restraint-type circumferential weld nozzle is used to be atomized with 0.8~1.2Mpa air pressures, and high pressure draught smashes aluminium alloy and forms alloy powder；4th step：Screening, the finished product adonic dusty material of 120 mesh is prepared into using spin vibration sieve.The alloy powder that the present invention is prepared using melting aerosolization method, can be satisfied with the requirement for preparing bimetal sliding bearing.
Description
Technical field
The invention belongs to alloy powder preparing technical fields, and in particular to a kind of formula of adonic dusty material and
Preparation method.
Background technology
Bimetal sliding bearing be on the steel plate direct sintering bronze powder at being rolled after bimetal bearing material, lead by
It is low, easy to stick in its hardness to echo preferable seizure resistance, so being widely used in sliding bearing part.Existing sliding bearing is used
Often contain a large amount of lead, such as CuPb10Sn10, CuPb24Sn, CuPb24Sn4 etc. in bronze based self-lubricating material.
Lead is a kind of toxic heavy metal, toxic to human body, has pollution to environment, lead and its compound are to human body each group
It knits toxic.Developed country has put into effect many relevant regulations, such as European Union《Electrically, it is limited using certain in electronic equipment
Harmful substance》Middle regulation must not contain the harmful substances such as lead for the new electronics and electrical equipment that put goods on the market.With mankind's ring
Protect enhancing and the raising sought of own health of consciousness, and production and daily life tool is universal, it is desirable to be used
Tool and component be environmentally friendly machine.Therefore, manufacture sliding bearing copper alloy powder powder material is unleaded imperative.
Invention content
The technical problem to be solved in the present invention is to provide a kind of formulas and preparation method thereof of adonic dusty material.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of preparation method of adonic dusty material, includes the following steps,
The first step：Melting selects mass percent for 95~97% copper, 1.5~3% nickel, 1~2.5% tin
Raw material, by copper be added smelting furnace in, 1085~1100 DEG C are heated in air atmosphere, after copper fusing after add nickel and
Tin, melting form aluminium alloy, 1250~1350 DEG C of smelting temperature, smelting time 20~25 minutes；
Second step：Composition Control, composition detection control is in copper 95~97%, nickel 1.5 after aluminium alloy is carried out liquid level slagging-off
~3%, tin 1~2.5%, inevitable or impurity≤0.5% that can not reject, it is cooled to 1200 after composition detection qualification~
1250℃；
Third walks：Atomization is added glass and removes the gred with charcoal, drags for net bits, aluminium alloy is injected bottom pour ladle, using restraint-type ring
Seam nozzle is atomized with 0.8~1.2Mpa air pressures under air, and high pressure draught smashes aluminium alloy and forms alloy powder；
4th step：Screening, the finished product adonic dusty material of -120 mesh is prepared into using spin vibration sieve.
Preferably, in third step, the copper liquid poured out for the first time in atomization is used as wash heat stove converter nose, need to be connect with container
Firmly, it is utilized when lower stove melting.
Preferably, in third step, the height of intermediate bottom pour ladle copper liquid is kept to be not less than 20cm in atomization process.
Preferably, the leakage eye of bottom pour ladle bottom surface is 1, leaks a diameter of 3.5-5mm of eye.
Preferably, the jet apex angle of restraint-type circumferential weld nozzle is 20-35 degree.
Preferably, the slit width of restraint-type circumferential weld nozzle is 0.5-2mm.
Preferably, a diameter of 1m of the sieve of spin vibration sieve.
Preferably, the apparent density of alloy powder is 4.5~5.5g/cm3。
Preferably, the mobility of alloy powder is 12~19s/50g.
Preferably, 99% or more the alloy powder is spherical or ellipse.
A kind of formula of adonic dusty material, according to above-mentioned preparation method be made, by weight percentage by with
Lower ingredient is constituted：Copper 95~97%, nickel 1.5~3%, tin 1~2.5%.
There is following advantageous effect using the present invention：
1, the present invention adds nickel and tin as alloying element in copper, compared with fine copper, improves alloy strength；With copper-lead
Tin series alloy is compared, and alloy powder of the invention has good plasticity, and is controlled lead content and be less than 0.1%, is realized
Bimetal sliding bearing material it is unleaded.
2, the present invention adds nickel in copper, is conducive to the corrosion resistance for improving alloy, can keep steady in corrosive medium
Fixed, the present invention adds tin in formula, and when Theil indices are less than 10%, tin is added with the intensity for being conducive to improve final finished.
3, opposite water atomization, the present invention is not aqueous by the powder that melting-aerosolization produces, need not be for a long time after atomization
Drying, can directly sieve, shorten production procedure.
4, the present invention uses restraint-type circumferential weld nozzle, aluminium alloy to be broken in nozzle exit, and nozzle is transmitted to metal
Energy it is big, be conducive to improve alloy powder flour extraction, the powder made of above technical scheme, 90% or more powder
Pattern be rendered as more regular spherical shape, surface texture is smooth, there is no pit or poroid tissue, consistency
Good, the apparent density of powder is 4.5~5.5g/cm3, mobility is 12~19s/50g.
5, using the bimetal sliding bearing of the unleaded powder sintered production of adonic, wearability and bond strength
Requirement can be reached, can be used for Engineering Machinery Components and auto parts and components, leaded metal material is eliminated and using
It is the ideal material for realizing that bimetal sliding bearing is unleaded to the influence of human and environment in journey.
Description of the drawings
Fig. 1 is a kind of flow chart of the preparation method of copper and tin nickel alloy powder powder material of the embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Embodiment 1
As shown in FIG. 1, FIG. 1 is a kind of flow charts of the preparation method of adonic dusty material of the present invention, including
Following steps：
The first step：Melting selects mass percent for 95% copper, and copper is added 3% nickel, the raw material of 2% tin
In smelting furnace, it is heated to 1085 DEG C in air atmosphere, nickel and tin are added after copper fusing, melting forms aluminium alloy, melting
1350 DEG C of temperature, smelting time 23 minutes；
Second step：Composition Control, composition detection control is in copper 95~97%, nickel 1.5 after aluminium alloy is carried out liquid level slagging-off
~3%, tin 1~2.5%, inevitable or impurity≤0.5% that can not reject is cooled to 1250 DEG C after composition detection qualification；
In the present embodiment, impurity includes silicon, aluminium, magnesium etc.；
Third walks：Atomization is added glass and removes the gred with charcoal, drags for net bits, aluminium alloy is injected bottom pour ladle, the leakage of bottom pour ladle bottom surface
Eye is 1, leaks a diameter of 3.5mm of eye, restraint-type circumferential weld nozzle is used to be atomized under air with 0.8Mpa air pressures, is limited
The jet apex angle of formula circumferential weld nozzle is 22 degree, and the slit width of restraint-type circumferential weld nozzle is 1mm, and high pressure draught smashes aluminium alloy and forms conjunction
Bronze end, the copper liquid poured out for the first time in atomization are used as wash heat stove converter nose, need to be caught with container, sharp when lower stove melting
With it is 23cm to keep the height of intermediate bottom pour ladle copper liquid in atomization process.
4th step：Screening, the finished product adonic dusty material of -120 mesh, the sieve of spin vibration sieve are prepared into using spin vibration sieve
Net a diameter of 1m.
A kind of formula of adonic dusty material, according to above-mentioned preparation method be made, by weight percentage by with
Lower ingredient is constituted：Copper 95%, nickel 3%, tin 2%.The adonic powder being prepared according to above-mentioned formula and preparation method
Apparent density be 5.5g/cm3, the mobility of alloy powder is 14s/50g, and 99% with above-mentioned alloy powder is spherical or ellipse
Circle is sintered on steel matrix and forms antifriction alloy layer, and wearability and bond strength can reach requirement, can be used for
Engineering Machinery Components and auto parts and components are the ideal materials for realizing that bimetal sliding bearing is unleaded.
Embodiment 2
As shown in FIG. 1, FIG. 1 is a kind of flow charts of the preparation method of adonic dusty material of the present invention, including
Following steps：
The first step：Melting, it is 97% copper, 1.5% nickel, the raw material of 1.5% tin, by copper to select mass percent
It being added in smelting furnace, 1100 DEG C is heated in air atmosphere, nickel and tin are added after copper fusing, melting forms aluminium alloy,
1270 DEG C of smelting temperature, smelting time 20 minutes；
Second step：Composition Control, composition detection control is in copper 95~97%, nickel 1.5 after aluminium alloy is carried out liquid level slagging-off
~3%, tin 1~2.5%, inevitable or impurity≤0.5% that can not reject is cooled to 1210 DEG C after composition detection qualification；
In the present embodiment, impurity includes silicon, aluminium, magnesium etc.；
Third walks：Atomization is added glass and removes the gred with charcoal, drags for net bits, aluminium alloy is injected bottom pour ladle, the leakage of bottom pour ladle bottom surface
Eye is 1, leaks a diameter of 5mm of eye, uses restraint-type circumferential weld nozzle to be atomized under air with 1.2Mpa air pressures, restraint-type
The jet apex angle of circumferential weld nozzle is 20 degree, and the slit width of restraint-type circumferential weld nozzle is 1mm, and high pressure draught smashes aluminium alloy and forms alloy
Powder, the copper liquid poured out for the first time in atomization are used as wash heat stove converter nose, need to be caught with container, sharp when lower stove melting
With it is 20cm to keep the height of intermediate bottom pour ladle copper liquid in atomization process.
4th step：Screening, the finished product adonic dusty material of -120 mesh, the sieve of spin vibration sieve are prepared into using spin vibration sieve
Net a diameter of 1m.
A kind of formula of adonic dusty material, according to above-mentioned preparation method be made, by weight percentage by with
Lower ingredient is constituted：Copper 97%, nickel 1.5%, tin 1.5%.The adonic being prepared according to above-mentioned formula and preparation method
The apparent density of powder is 4.5g/cm3, the mobility of alloy powder is 16s/50g, 99% or more alloy powder be it is spherical or
Person's ellipse is sintered on steel matrix and forms antifriction alloy layer, and wearability and bond strength can reach requirement, can
It is the ideal material for realizing that bimetal sliding bearing is unleaded for Engineering Machinery Components and auto parts and components.
Embodiment 3
As shown in FIG. 1, FIG. 1 is a kind of flow charts of the preparation method of adonic dusty material of the present invention, including
Following steps：
The first step：Melting selects mass percent for 96% copper, and copper is added 3% nickel, the raw material of 1% tin
In smelting furnace, it is heated to 1090 DEG C in air atmosphere, nickel and tin are added after copper fusing, melting forms aluminium alloy, melting
1250 DEG C of temperature, smelting time 25 minutes；
Second step：Composition Control, composition detection control is in copper 95~97%, nickel 1.5 after aluminium alloy is carried out liquid level slagging-off
~3%, tin 1~2.5%, inevitable or impurity≤0.5% that can not reject is cooled to 1200 DEG C after composition detection qualification；
In the present embodiment, impurity includes silicon, aluminium, magnesium etc.；
Third walks：Atomization is added glass and removes the gred with charcoal, drags for net bits, aluminium alloy is injected bottom pour ladle, the leakage of bottom pour ladle bottom surface
Eye is 1, leaks a diameter of 3.5mm of eye, restraint-type circumferential weld nozzle is used to be atomized under air with 1.1Mpa air pressures, is limited
The jet apex angle of formula circumferential weld nozzle is 35 degree, and the slit width of restraint-type circumferential weld nozzle is 0.5mm, and high pressure draught smashes aluminium alloy and formed
Alloy powder, the copper liquid poured out for the first time in atomization are used as wash heat stove converter nose, need to be caught with container, when lower stove melting
It utilizes, it is 21cm that the height of intermediate bottom pour ladle copper liquid is kept in atomization process.
4th step：Screening, the finished product adonic dusty material of -120 mesh, the sieve of spin vibration sieve are prepared into using spin vibration sieve
Net a diameter of 1m.
A kind of formula of adonic dusty material, according to above-mentioned preparation method be made, by weight percentage by with
Lower ingredient is constituted：Copper 96%, nickel 3%, tin 1%.The adonic powder being prepared according to above-mentioned formula and preparation method
Apparent density be 4.8g/cm3, the mobility of alloy powder is 12s/50g, and 99% or more alloy powder is spherical or ellipse
Circle is sintered on steel matrix and forms antifriction alloy layer, and wearability and bond strength can reach requirement, can be used for
Engineering Machinery Components and auto parts and components are the ideal materials for realizing that bimetal sliding bearing is unleaded.
Embodiment 4
As shown in FIG. 1, FIG. 1 is a kind of flow charts of the preparation method of adonic dusty material of the present invention, including
Following steps：
The first step：Melting, it is 95% copper, 2.5% nickel, the raw material of 2.5% tin, by copper to select mass percent
It being added in smelting furnace, 1090 DEG C is heated in air atmosphere, nickel and tin are added after copper fusing, melting forms aluminium alloy,
1320 DEG C of smelting temperature, smelting time 22 minutes；
Second step：Composition Control, composition detection control is in copper 95~97%, nickel 1.5 after aluminium alloy is carried out liquid level slagging-off
~3%, tin 1~2.5%, inevitable or impurity≤0.5% that can not reject is cooled to 1230 DEG C after composition detection qualification；
In the present embodiment, impurity includes silicon, aluminium, magnesium etc.；
Third walks：Atomization is added glass and removes the gred with charcoal, drags for net bits, aluminium alloy is injected bottom pour ladle, the leakage of bottom pour ladle bottom surface
Eye is 1, leaks a diameter of 5mm of eye, uses restraint-type circumferential weld nozzle to be atomized under air with 1.2Mpa air pressures, restraint-type
The jet apex angle of circumferential weld nozzle is 34 degree, and the slit width of restraint-type circumferential weld nozzle is 2mm, and high pressure draught smashes aluminium alloy and forms alloy
Powder, the copper liquid poured out for the first time in atomization are used as wash heat stove converter nose, need to be caught with container, sharp when lower stove melting
With it is 22cm to keep the height of intermediate bottom pour ladle copper liquid in atomization process.
4th step：Screening, the finished product adonic dusty material of -120 mesh, the sieve of spin vibration sieve are prepared into using spin vibration sieve
Net a diameter of 1m.
A kind of formula of adonic dusty material, according to above-mentioned preparation method be made, by weight percentage by with
Lower ingredient is constituted：Copper 95%, nickel 2.5%, tin 2.5%.The adonic being prepared according to above-mentioned formula and preparation method
The apparent density of powder is 5.0g/cm3, the mobility of alloy powder is 19s/50g, 99% or more alloy powder be it is spherical or
Person's ellipse is sintered on steel matrix and forms antifriction alloy layer, and wearability and bond strength can reach requirement, can
It is the ideal material for realizing that bimetal sliding bearing is unleaded for Engineering Machinery Components and auto parts and components.
It should be appreciated that exemplary embodiment as described herein is illustrative and be not restrictive.Although being retouched in conjunction with attached drawing
One or more embodiments of the invention is stated, it should be understood by one skilled in the art that not departing from through appended right
In the case of the spirit and scope of the present invention defined by it is required that, the change of various forms and details can be made.
Claims (8)
1. a kind of preparation method of adonic dusty material, which is characterized in that include the following steps,
The first step：Melting, it is 95~97% copper, 1.5~3% nickel, the former material of 1~2.5% tin to select mass percent
Copper is added in smelting furnace, 1085~1100 DEG C is heated in air atmosphere by material, adds nickel and tin after copper fusing, melts
Refining forms aluminium alloy, 1250~1350 DEG C of smelting temperature, smelting time 20~25 minutes；
Second step：Composition Control, composition detection control is in copper 95~97%, nickel 1.5 after the aluminium alloy is carried out liquid level slagging-off
~3%, tin 1~2.5%, inevitable or impurity≤0.5% that can not reject, it is cooled to 1200 after composition detection qualification~
1250℃；
Third walks：Atomization is added glass and removes the gred with charcoal, drag for net bits, the aluminium alloy injected bottom pour ladle, using restraint-type ring
Seam nozzle is atomized with 0.8~1.2Mpa air pressures under air, and high pressure draught smashes the aluminium alloy and forms alloy powder；Institute
It states and the height of intermediate bottom pour ladle copper liquid is kept to be not less than 20cm in atomization process；The jet apex angle of the restraint-type circumferential weld nozzle is
20-35 degree；
4th step：Screening, the finished product adonic dusty material of -120 mesh is prepared into using spin vibration sieve.
2. the preparation method of adonic dusty material described in accordance with the claim 1, which is characterized in that walked in the third
In, the copper liquid poured out for the first time in atomization is used as wash heat stove converter nose, need to be caught with container, be utilized when lower stove melting.
3. the preparation method of adonic dusty material described in accordance with the claim 1, which is characterized in that the bottom pour ladle bottom surface
Leakage eye be 1, it is described leakage eye a diameter of 3.5-5mm.
4. the preparation method of adonic dusty material described in accordance with the claim 1, which is characterized in that the restraint-type ring
The slit width for stitching nozzle is 0.5-2mm.
5. the preparation method of adonic dusty material described in accordance with the claim 1, which is characterized in that the spin vibration sieve
The a diameter of 1m of sieve.
6. the preparation method of adonic dusty material described in accordance with the claim 1, which is characterized in that the alloy powder
Apparent density be 4.5~5.5g/cm3, the mobility of alloy powder is 12~19s/50g.
7. according to the preparation method of claim 1-6 any one of them adonic dusty materials, which is characterized in that 99%
Above alloy powder is spherical or ellipse.
8. a kind of formula of adonic dusty material, which is characterized in that according to any preparation sides claim 1-7
Method is made, and is made of by weight percentage following component：Copper 95~97%, nickel 1.5~3%, tin 1~2.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610930991.2A CN106834797B (en) | 2016-10-31 | 2016-10-31 | A kind of formula and preparation method thereof of adonic dusty material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610930991.2A CN106834797B (en) | 2016-10-31 | 2016-10-31 | A kind of formula and preparation method thereof of adonic dusty material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106834797A CN106834797A (en) | 2017-06-13 |
| CN106834797B true CN106834797B (en) | 2018-09-25 |
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