CN107855496A - A kind of copper base-steel bi-metal composite casting method - Google Patents
A kind of copper base-steel bi-metal composite casting method Download PDFInfo
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- CN107855496A CN107855496A CN201711013110.1A CN201711013110A CN107855496A CN 107855496 A CN107855496 A CN 107855496A CN 201711013110 A CN201711013110 A CN 201711013110A CN 107855496 A CN107855496 A CN 107855496A
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- steel
- alloy
- casting
- steel matrix
- metal composite
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0081—Casting in, on, or around objects which form part of the product pretreatment of the insert, e.g. for enhancing the bonding between insert and surrounding cast metal
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
-
- 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
- C22C9/08—Alloys based on copper with lead as the next major constituent
Abstract
A kind of copper base-steel bi-metal composite casting method, belong to compound casting technical field, including steel matrix pre-treatment, steel matrix preheating, melting Redford alloy alloy, casting.The bimetallic faying face obtained by the way of the casting of the present invention, not only performance is up to standard but also equipment investment is few, technological operation is easy, reduces workpiece cost, is adapted to wide popularization and application, has a extensive future.Compared with powder metallurgy, performance is more excellent, and eliminates heat treatment step, saves time and cost.
Description
Technical field
The invention belongs to compound casting technical field, and in particular to a kind of copper base-steel bi-metal composite casting method.
Background technology
Plunger pump is to use a kind of extremely wide gearing in production, is an important device of hydraulic system.It
Moved back and forth by plunger in cylinder body, the volume of seal operation cavity volume is changed to realize oil suction, force feed.Plunger pump has
Have the advantages that high rated pressure, compact-sized, efficiency high and Flow-rate adjustment are convenient, be widely used in high pressure, big flow and stream
Amount needs the occasion that adjusts, in such as hydraulic press, engineering machinery and Transport Machinery.Plunger forms friction at work with rotor
Pair, its quality determine performance and the life-span of plunger pump.Production requirement plunger pump is intended to high speed, high temperature, top load, varying load work
Condition is run, and this requires pump housing critical component --- rotor, there is the excellent attribute of each side：Wearability, thermal conductivity, shock resistance
Fatigue behaviour and intensity hardness etc..
The antifriction alloy used both at home and abroad at present is mainly two major classes：One kind is closed for Dispersed precipitate hard particles in soft body
Gold, such as：Lead base, the kamash alloy of babbitt metal system, the material melting point is low, and matter is soft, is only used for low load；Another kind of is hard
Distribution soft grit alloy in matter matrix, such as：Allen's metal alloy.Copper has good ductility, heat resistance, thermal conductivity, can be full
Use of the foot member under high temperature, high-speed working condition；The solid solubility of lead and copper is minimum, is distributed in the alloy with simple substance particle dispersion,
The continuity of copper body is changed, improves the wearability of copper in itself；Fusing point of lead particle itself is low, matter is soft, good in lubricating condition
Embedding Tibetan greasy dirt can be played in the case of good, complies with plunger effect；Mechanically activated or under lacking the DRY SLIDINGs such as lubricant,
Lubrication protection can be played a part of to friction pair in the form of simple substance or oxide, reduce the things such as " stinging axle ", " seizing ", " excessively heated axle "
Therefore occur.But the addition of lead while copper body wearability is improved, inevitably makes under its strong, hardness with distribution situation
Drop, directly influences pump housing load, impulse fatigue resistance energy, causes and then reduces rotor and the service life of pump.
The method for being commonly used to improve Allen's metal rotor mechanical performance is the method that bimetallic combines.Made of Allen's metal
For the wear-resisting working face of rotor inner layer, the material-high strength steel high by the use of strong hardness reinforces body as outer layer.Bimetallic composite casting
Producing material material, due to being synthesized using casting method, technique is simple, and cost is cheap, has great application prospect, but casting process
In two kinds of metal times of contact it is short, cooling rate is fast, drastically influence the combination of the two, this also turn into restrict bimetallic composite casting
Producing material material produces and the bottleneck of application.Therefore, how to make composite casting that there is good combination and performance, need further
Research.
The content of the invention
According to problems of the prior art, the invention provides a kind of copper base-steel bi-metal composite casting method, it is intended that
Improve the Interface adhesive strength and performance of alloy.
The present invention uses following technical scheme：
A kind of copper base-steel bi-metal composite casting method, comprises the following steps：
Step 1：By the NaOH aqueous cleaning greasy dirts of steel matrix mass concentration 15%, with distilled water flushing to neutrality,
Derusted with the HCl/water solution of mass concentration 10%, put in a dry environment with distilled water flushing to neutrality, drying again afterwards again
It is stand-by；
Step 2：Steel matrix is placed in 1100-1200 DEG C of borax glass and preheats 2.5h, when steel matrix preheating temperature reaches
It is incubated during to 1150 DEG C and waits to cast；
Step 3：Graphite crucible is preheating to 600 DEG C, adds fine copper, temperature adjustment makes furnace temperature staged liter to 800-900 DEG C
Wen Houzai adjusts furnace temperature and all melted to copper, after standing 3-6min, is sufficiently stirred with graphite rod, sequentially adds Zn, Pb, Sn,
Latter metal, midfeather 5-7min are added after former metal melts completely, and is stirred continuously, adds lanthanum cerium copper
Rare earth alloy, stir, when smelting temperature reaches 1150-1250 DEG C, obtain Redford alloy alloy, thermometric to 1200 DEG C-
Wait to cast at 1250 DEG C, skimmed before casting and stir 10-30s；
Step 4：Steel matrix casting Redford alloy alloy, air cooling 2min after casting, after Redford alloy alloy graining, to
Cast(ing) surface water spray 3-5min is cooled to room temperature.
Preferably, described steel matrix includes the chemical composition of following percentage by weight:C0.450%, Si0.250%,
Mn0.620%, P0.021%, S0.023%, Cr0.140%, Mo0.020%, Ni0.018%, Cu0.230%,
Ti0.003%, V0.007%, W0.010%, surplus Fe.
Preferably, described Redford alloy alloy includes the chemical composition of following percentage by weight：Pb20%, Sn5%,
Zn2%, P0.5%, RE0.2%, Ni1.5%, surplus Cu.
Preferably, described steel matrix is to be machined to a diameter of 45mm Steel Bar to be highly 40mm, bottom and wall thickness
It is 5mm crucible shape.
The beneficial effects of the present invention are：
1) steel matrix is preheated anti-oxidation；Faying face is complete, rare oxidation.
2) using the casting method of the present invention, bond strength has been obtained and has been not less than 100 μm higher than 134MPa, atoms permeating layer
Bimetallic junction alloying part, it is ensured that two kinds of metal interface bond strengths.
3) the obtained bimetallic faying face by the way of the casting of the present invention, not only performance is up to standard but also equipment investment
Less, technological operation is easy, reduces workpiece cost, is adapted to wide popularization and application, has a extensive future.Compared with powder metallurgy, performance is more
To be excellent, and heat treatment step is eliminated, save time and cost.
Embodiment
With reference to embodiments, the technical scheme in the present invention is clearly and completely described.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.
A kind of copper base-steel bi-metal composite casting method, comprises the following steps：
Step 1：By the NaOH aqueous cleaning greasy dirts of steel matrix mass concentration 15%, with distilled water flushing to neutrality,
Derusted with the HCl/water solution of mass concentration 10%, put in a dry environment with distilled water flushing to neutrality, drying again afterwards again
It is stand-by；
Step 2：Steel matrix is placed in 1100-1200 DEG C of borax glass and preheats 2.5h, when steel matrix preheating temperature reaches
It is incubated during to 1150 DEG C and waits to cast；
Step 3：Graphite crucible is preheating to 600 DEG C, adds fine copper, temperature adjustment makes furnace temperature staged liter to 800-900 DEG C
Wen Houzai adjusts furnace temperature and all melted to copper, after standing 3-6min, is sufficiently stirred with graphite rod, sequentially adds Zn, Pb, Sn,
Latter metal, midfeather 5-7min are added after former metal melts completely, and is stirred continuously, adds lanthanum cerium copper
Rare earth alloy, stir, when smelting temperature reaches 1150-1250 DEG C, obtain Redford alloy alloy, thermometric to 1200 DEG C-
Wait to cast at 1250 DEG C, skimmed before casting and stir 10-30s；
Step 4：Steel matrix casting Redford alloy alloy, air cooling 2min after casting, after Redford alloy alloy graining, to
Cast(ing) surface water spray 3-5min is cooled to room temperature.
Described steel matrix includes the chemical composition of following percentage by weight:C0.450%, Si0.250%,
Mn0.620%, P0.021%, S0.023%, Cr0.140%, Mo0.020%, Ni0.018%, Cu0.230%,
Ti0.003%, V0.007%, W0.010%, surplus Fe.
Described Redford alloy alloy includes the chemical composition of following percentage by weight：Pb20%, Sn5%, Zn2%,
P0.5%, RE0.2%, Ni1.5%, surplus Cu.
Described steel matrix is that a diameter of 45mm Steel Bar is machined to highly for 40mm, bottom and wall thickness to be 5mm
Crucible shape.
Claims (4)
1. a kind of copper base-steel bi-metal composite casting method, it is characterised in that comprise the following steps：
Step 1：By the NaOH aqueous cleaning greasy dirts of steel matrix mass concentration 15%, with distilled water flushing to neutrality, then use
The HCl/water solution derusting of mass concentration 10%, afterwards again with distilled water flushing to neutrality, drying is put to be treated in a dry environment
With；
Step 2：Steel matrix is placed in 1100-1200 DEG C of borax glass and preheats 2.5h, when steel matrix preheating temperature reaches
It is incubated at 1150 DEG C and waits to cast；
Step 3：Graphite crucible is preheating to 600 DEG C, adds fine copper, temperature adjustment is to 800-900 DEG C, after furnace temperature staged is heated up
Furnace temperature is adjusted again to copper all to melt, and after standing 3-6min, is sufficiently stirred with graphite rod, is sequentially added Zn, Pb, Sn, before treating
A kind of metal adds latter metal, midfeather 5-7min after melting completely, and is stirred continuously, and adds lanthanum cerium copper rare earth
Alloy, stir, when smelting temperature reaches 1150-1250 DEG C, obtain Redford alloy alloy, thermometric is to 1200 DEG C -1250 DEG C
When wait to cast, skimmed before casting and stir 10-30s；
Step 4：Steel matrix casting Redford alloy alloy, air cooling 2min after casting, after Redford alloy alloy graining, to casting
Surface sprinkling 3-5min is cooled to room temperature.
A kind of 2. copper base-steel bi-metal composite casting method according to claim 1, it is characterised in that：Described steel matrix bag
Include the chemical composition of following percentage by weight:C0.450%, Si0.250%, Mn0.620%, P0.021%, S0.023%,
Cr0.140%, Mo0.020%, Ni0.018%, Cu0.230%, Ti0.003%, V0.007%, W0.010%, surplus Fe.
A kind of 3. copper base-steel bi-metal composite casting method according to claim 1, it is characterised in that：Described Redford alloy
Alloy includes the chemical composition of following percentage by weight：It is Pb20%, Sn5%, Zn2%, P0.5%, RE0.2%, Ni1.5%, remaining
Measure as Cu.
A kind of 4. copper base-steel bi-metal composite casting method according to claim 1, it is characterised in that：Described steel matrix is
It is the crucible shape that 40mm, bottom and wall thickness are 5mm that a diameter of 45mm Steel Bar is machined into height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711013110.1A CN107855496A (en) | 2017-10-25 | 2017-10-25 | A kind of copper base-steel bi-metal composite casting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711013110.1A CN107855496A (en) | 2017-10-25 | 2017-10-25 | A kind of copper base-steel bi-metal composite casting method |
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| CN107855496A true CN107855496A (en) | 2018-03-30 |
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| CN201711013110.1A Pending CN107855496A (en) | 2017-10-25 | 2017-10-25 | A kind of copper base-steel bi-metal composite casting method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788101A (en) * | 2018-07-20 | 2018-11-13 | 广东省焊接技术研究所（广东省中乌研究院） | A kind of sheet nickel base superalloy and preparation method thereof |
| CN112662901A (en) * | 2019-10-16 | 2021-04-16 | 种向东 | Steel plate surface casting copper alloy liquid and preparation process thereof |
Citations (5)
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|---|---|---|---|---|
| CN1364673A (en) * | 2001-01-10 | 2002-08-21 | 何桂馥 | Isothermal welding method for producing copper-steel composite material |
| CN101412050A (en) * | 2008-11-28 | 2009-04-22 | 北京工业大学 | Abrasion-proof cast iron roll collar for straightening steel rail and preparation method thereof |
| CN201279951Y (en) * | 2008-10-30 | 2009-07-29 | 淮北市钛沽金属复合材料有限公司 | Thread casting copper steel composite board |
| CN101664799A (en) * | 2009-09-14 | 2010-03-10 | 哈尔滨工业大学 | Connecting method of copper-steel composite component by induction fusion casting |
| CN104259438A (en) * | 2014-09-28 | 2015-01-07 | 贵州安吉航空精密铸造有限责任公司 | Copper-steel bimetal casting improved technology |
-
2017
- 2017-10-25 CN CN201711013110.1A patent/CN107855496A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1364673A (en) * | 2001-01-10 | 2002-08-21 | 何桂馥 | Isothermal welding method for producing copper-steel composite material |
| CN201279951Y (en) * | 2008-10-30 | 2009-07-29 | 淮北市钛沽金属复合材料有限公司 | Thread casting copper steel composite board |
| CN101412050A (en) * | 2008-11-28 | 2009-04-22 | 北京工业大学 | Abrasion-proof cast iron roll collar for straightening steel rail and preparation method thereof |
| CN101664799A (en) * | 2009-09-14 | 2010-03-10 | 哈尔滨工业大学 | Connecting method of copper-steel composite component by induction fusion casting |
| CN104259438A (en) * | 2014-09-28 | 2015-01-07 | 贵州安吉航空精密铸造有限责任公司 | Copper-steel bimetal casting improved technology |
Non-Patent Citations (2)
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|---|
| 刘少杰等: "铜/钢双金属泵体转子界面结合技术研究", 《热加工工艺》 * |
| 王明杰等: "柱塞泵转子铸造工艺研究", 《铸造技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788101A (en) * | 2018-07-20 | 2018-11-13 | 广东省焊接技术研究所（广东省中乌研究院） | A kind of sheet nickel base superalloy and preparation method thereof |
| CN108788101B (en) * | 2018-07-20 | 2020-03-24 | 广东省焊接技术研究所（广东省中乌研究院） | Preparation method of sheet nickel-based superalloy |
| CN112662901A (en) * | 2019-10-16 | 2021-04-16 | 种向东 | Steel plate surface casting copper alloy liquid and preparation process thereof |
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Application publication date: 20180330 |