CN109913793A - The method of manufacturing metal-base compound bimetallic article by centrifugation - Google Patents
The method of manufacturing metal-base compound bimetallic article by centrifugation Download PDFInfo
- Publication number
- CN109913793A CN109913793A CN201711313305.8A CN201711313305A CN109913793A CN 109913793 A CN109913793 A CN 109913793A CN 201711313305 A CN201711313305 A CN 201711313305A CN 109913793 A CN109913793 A CN 109913793A
- Authority
- CN
- China
- Prior art keywords
- compound
- metal
- inner core
- mold
- centrifugation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Abstract
The present invention relates to a kind of method of manufacturing metal-base compound bimetallic article by centrifugation, 1) punching: deflector hole is beaten on Metal Substrate inner core；2) it preheats: Metal Substrate inner core being put into mold, is put into electric furnace and preheats；3) permeate compound: the composition metal for melting of casting in mold permeate compound；4) centrifugal compound: mold is placed on centrifuge, carries out centrifugal compound, until the composition metal of molten condition becomes solid-state；5) cooling；6) it is removed from the molds blank after cooling, carries out following process.Composition metal composite centrifugal method of the present invention comes true, have the advantages that simple process, it is easy to operate, can be produced in batches, quality is reliable and stable, reduce product cost.
Description
Technical field
The invention belongs to metal-based compound bimetallic manufacturing technology class fields, and in particular to a kind of centrifugal process manufacture metal
The method of base bimetal composite product.
Background technique
Currently, the gear in worm gear and some important gear drives in worm reduction gear, is all commonly used expensive
The antifriction material copper alloy of weight makes, and uses monoblock-casting-type, larger-size snail to size lesser worm gear or gear
Wheel or gear mostly use gear ring bolt connecting type or gear ring to spell the forms such as casting formula.Latter two method is in order to guarantee worm gear or gear
Use intensity it is necessary to thicken the size of copper alloy gear ring, part precious metal can be saved, being furthermore bolted will have
Cooperate required precision, spelling casting formula, there are casting flaws, often result in intensity decline, safety coefficient reduces, and quality is difficult to protect
Card, designer attempts to come compound base steel and copper alloy using the method for pressure casting thus.Through testing, pressure casting method
It cannot be implemented on such product, the reason is as follows that:
1) the most important feature of pressure casting is high speed and high pressure, and principle is that first copper alloy liquid is poured into die casting machine,
Again by die casting machine die casting into mold, since the upper limit of the pouring temperature of die casting machine is 950 DEG C, once it is more than this temperature
Degree, it may appear that many technical problems, such as the intensity of equipment and mold can change, and temperature is excessively high, equipment and mold
It will appear deformation, under high pressure, be easy to appear safety accident.The melting temperature of wear-resistant copper alloy layer is more than 950 DEG C, because
This can not be manufactured using pressure casting method.
2) die casting equipment is complicated, and die casting involves great expense, and investment is big.
Summary of the invention
Simple, at low cost, reliable in quality that the technical problem to be solved in the present invention is to provide a kind of processing technologys is saved largely
Copper alloy, and the method that can be carried out the manufacturing metal-base compound bimetallic article by centrifugation of batch production.
The present invention is achieved by the following technical solution: i.e. a kind of centrifugal process manufactures metal-based compound bimetallic
The method of product, it is characterised in that include the following steps: 1) to punch: beating deflector hole on Metal Substrate inner core；2) pre-
Heat: Metal Substrate inner core is put into mold, is put into electric furnace and preheats；3) it permeates compound: melting of casting in mold
Composition metal, permeate compound；4) centrifugal compound: mold is placed on centrifuge, carries out centrifugal compound, directly
Composition metal to molten condition becomes solid-state；5) cooling；6) it is removed from the molds blank after cooling, carries out subsequent
Processing.As a preferred solution of the present invention: the outer circle and inner circle of the deflector hole perforation Metal Substrate inner core.As this
One preferred embodiment of invention: the Metal Substrate inner core is equipped with lightening hole, the deflector hole perforation Metal Substrate inner core
Outer circle and lightening hole.As a preferred solution of the present invention: the quantity of deflector hole is 3~200, deflector hole
Diameter is 2mm~300mm.As a preferred solution of the present invention: preheating temperature is 380 DEG C~480 DEG C, in advance
The hot time is 30 minutes~120 minutes.As a preferred solution of the present invention: infiltration compound tense, the temperature of electric furnace
Degree will make composition metal in a molten state, and permeating the compound time is 45 minutes~120 minutes.As the present invention
A preferred embodiment: when centrifugal compound, the revolving speed of centrifuge is 354 revs/min~3000 revs/min, the time
It is 0.5 minute~120 minutes.The present invention opens up multiple deflector holes on Metal Substrate inner core, under the action of centrifuge,
The composition metal of melting flows to outer circle through deflector hole by the inner circle (or lightening hole) of Metal Substrate inner core, answers composition metal
Close centrifugal process come true, have simple process, it is easy to operate, can be produced in batches, quality is reliable and stable, drop
The advantages of low product cost.
Become metallic pin after composition metal cooling in the deflector hole of Metal Substrate inner core of the invention, Metal Substrate inner core
It is closer between the composition metal and Metal Substrate inner core of outer circle to be linked togather, thus more improve combined strength bination.Through from
Composition metal after the heart does not have the casting flaws such as stomata, sand holes, loose, and improves the compactness of composition metal, enhancing
The comprehensive performances such as the wearability of composition metal.
Specific embodiment
Embodiment 1 below be make valve electric actuator in pinion gear for illustrate the present embodiment.The diameter of the gear
For ￠ 45mm, internal diameter ￠ 12mm, with a thickness of 10mm, the high 2mm of tooth, original gear all uses copper alloy
ZHA166-6-3-2, it is at high cost.Said gear is manufactured using method of the present invention, its step are as follows:
1) deflector hole of 3 ￠ 2mm is made a call on the inner core of the carbon steel material of ￠ 32mm, in the deflector hole perforation
The outer circle and inner circle of core.
2) inner core is put into mold, is put into electric furnace and preheats, preheating temperature is 380 DEG C~390 DEG C, when preheating
Between be 30 minutes.
3) the copper alloy ZHA166-6-3-2 for molten condition of casting in mold, temperature are 1080 DEG C, will be cast
The mold finished, which is put into electric furnace, permeate compound, and the temperature of electric furnace is 1050 DEG C, and permeating the compound time is 45
Minute.
4) mold is placed on centrifuge, according to the inside radius of the gravitation multiple of workpiece and casting, calculates centrifugation
The revolving speed of machine, it is 180 that above-mentioned revolving speed, which takes gravitation multiple according to " mechanical engineering manual " table 39-6-54, and inside radius is
1.6cm is calculated by following formula, and the revolving speed of centrifuge is 2990 revs/min 3000 revs/min of ≈, starting centrifugation
Machine carries out centrifugal rotation to mold, until the copper alloy ZHA166-6-3-2 of melting becomes solid-state, centrifugation time is preferred
0.5 minute.
5) mold is removed from centrifuge after being centrifuged, natural cooling；6) steel is removed from the molds after cooling
The compound blank of copper carries out following process.
Due to being opened on inner core by 3 deflector holes for molten copper alloy flow, in centrifugally operated, in deflector hole
Copper alloy is formed 3 copper pins after being cooled to solid-state, and compound copper alloy layer and inner core have been unified into an entirety, increases
Strong bond strength between compound copper alloy layer and inner core.By the detection of Tianjin mechanotronics metal material inspection center
Report proves, using gear made from method of the invention, the tensile strength of compound copper alloy is 700Mpa, hardness
HB232, performance, with the copper alloy (tensile strength 637, hardness HB160) of the trade mark, are used much higher than GB1176-74
Gear produced by the present invention uses carbon steel, the only compound copper alloy ZHA166-6-3-2 of outer layer, therefore cost due to its inner core
It substantially reduces.
Embodiment 2 illustrates this implementation by taking the worm gear in nuclear island of nuclear power station in cooling water filter core pulling apparatus as an example below
Example.
The worm gear diameter is ￠ 95mm, and internal diameter is ￠ 45mm, and with a thickness of 40mm, original technology is all using copper
Alloy ZHA166-6-3-2 carrys out monoblock cast.Above-mentioned worm gear is manufactured using method of the present invention, its step are as follows:
1) deflector hole of 6 ￠ 8mm is made a call on the inner core of the carbon steel material of ￠ 70mm, in the deflector hole perforation
The outer circle and inner circle of core.
2) inner core is put into mold, is put into electric furnace and preheats, preheating temperature is 400 DEG C~420 DEG C, preheating
Time is 40~50 minutes.
3) the copper alloy ZHA166-6-3-2 for molten condition of casting in mold, temperature are 1080 DEG C, will be cast
The mold finished, which is put into electric furnace, permeate compound, and the temperature of electric furnace is 1050 DEG C, and permeating the compound time is 60
Minute.
4) mold is placed on centrifuge, according to the inside radius of the gravitation multiple of workpiece and casting, calculates centrifugation
The revolving speed of machine, it is 70 that above-mentioned revolving speed, which takes gravitation multiple according to " mechanical engineering manual " table 39-6-54, and inside radius is
3.5cm is calculated by following formula, and the revolving speed of centrifuge is 1337 revs/min, and starting centrifuge is centrifuged mold
Rotation, until the copper alloy ZHA166-6-3-2 of melting becomes solid-state, centrifugation time preferably 5 minutes.
5) mold is removed from centrifuge after being centrifuged, natural cooling.
6) it is removed from the molds the compound blank of steel copper after cooling, carries out following process.Due to being opened on inner core by 6
For the deflector hole of molten copper alloy flow, in centrifugally operated, the copper alloy in deflector hole is just formed after being cooled into solid-state
6 copper pins, by compound copper alloy layer and inner core have been unified into an entirety, enhance compound copper alloy layer and inner core it
Between bond strength.
Embodiment 3 illustrates the present embodiment by taking the worm gear of the worm reduction gear used on large-scale seagoing vessel as an example below.The snail
Wheel diameter be ￠ 1200mm, since it is excessively huge, on worm gear be equipped with 10 uniformly distributed lightening holes, 10
The maximum gauge that lightening hole is enclosed is ￠ 800mm, with a thickness of 300mm.Above-mentioned snail is manufactured using method of the present invention
Wheel, its step are as follows: 1) deflector hole (or 200 that 6 ￠ 200mm are made a call on the inner core of ￠ 1000mm
The deflector hole of ￠ 10mm), the deflector hole perforation inner core outer circle and lightening hole, the material of inner core is cast iron HT20-40
Or No. 20 carbon steels.
2) inner core is put into mold, is put into electric furnace and preheats, preheating temperature is 450 DEG C~480 DEG C, when preheating
Between be 120 minutes.
3) the copper alloy QAL9-4 for molten condition of casting in mold, temperature are 1200 DEG C, and casting is finished
Mold, which is put into electric furnace, permeate compound, and the temperature of electric furnace is 1200 DEG C, and permeating the compound time is 120 minutes.
4) mold is placed on centrifuge, according to the inside radius of the gravitation multiple of workpiece and casting, calculates centrifuge
Revolving speed, it is 70 that above-mentioned revolving speed, which takes gravitation multiple according to " mechanical engineering manual " table 39-6-54, and inside radius is
50cm is calculated by following formula, and the revolving speed of centrifuge is 354 turns and is approximately equal to 350 revs/min, starts centrifuge pair
Mold carries out centrifugal rotation, until the copper alloy QAL9-4 of melting becomes solid-state, centrifugation time preferably 120 minutes.
5) mold is removed from centrifuge after being centrifuged, natural cooling；6) steel is removed from the molds after cooling
The compound blank of copper carries out following process.
Due to being opened on inner core by 6 (or 200) for the deflector hole of molten copper alloy flow, grasped in centrifugation
In work, the copper alloy in deflector hole is formed 6 (or 200) copper pins after being cooled into solid-state, will be compound
Copper alloy layer and inner core have been unified into an entirety, enhance the bond strength between compound copper alloy layer and inner core.The present invention
Above embodiments are not limited to, present invention can also apply to manufacture other kinds of metal-based compound bimetallic article.
Claims (7)
1. a kind of method of manufacturing metal-base compound bimetallic article by centrifugation, it is characterised in that include the following steps: 1)
Punching: deflector hole is beaten on Metal Substrate inner core；2) it preheats: Metal Substrate inner core being put into mold, is put into electric furnace
Preheating；3) permeate compound: the composition metal for melting of casting in mold permeate compound；4) centrifugal compound:
Mold is placed on centrifuge, centrifugal compound is carried out, until the composition metal of molten condition becomes solid-state；5) cooling；
6) it is removed from the molds blank after cooling, carries out following process.
2. the method for the manufacturing metal-base compound bimetallic article by centrifugation according to claim 1, it is characterised in that institute
State the outer circle and inner circle of deflector hole perforation Metal Substrate inner core.
3. the method for the manufacturing metal-base compound bimetallic article by centrifugation according to claim 1, it is characterised in that
The Metal Substrate inner core is equipped with lightening hole, the outer circle and lightening hole of the deflector hole perforation Metal Substrate inner core.
4. the method for the manufacturing metal-base compound bimetallic article by centrifugation according to claim 1, it is characterised in that lead
The quantity of discharge orifice is 3~200, and the diameter of deflector hole is 2mm~300mm.
5. the method for the manufacturing metal-base compound bimetallic article by centrifugation according to claim 1, it is characterised in that pre-
Hot temperature is 380 DEG C~480 DEG C, and preheating time is 30 minutes~120 minutes.
6. the method for the manufacturing metal-base compound bimetallic article by centrifugation according to claim 1, it is characterised in that seep
The temperature of saturating compound tense, electric furnace will make composition metal in a molten state, and permeating the compound time is 45 minutes~120
Minute.
7. the method for the manufacturing metal-base compound bimetallic article by centrifugation according to claim 1, it is characterised in that from
Heart compound tense, the revolving speed of centrifuge are 354 revs/min~3000 revs/min, and the time is 0.5 minute~120
Minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711313305.8A CN109913793A (en) | 2017-12-12 | 2017-12-12 | The method of manufacturing metal-base compound bimetallic article by centrifugation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711313305.8A CN109913793A (en) | 2017-12-12 | 2017-12-12 | The method of manufacturing metal-base compound bimetallic article by centrifugation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109913793A true CN109913793A (en) | 2019-06-21 |
Family
ID=66957149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711313305.8A Withdrawn CN109913793A (en) | 2017-12-12 | 2017-12-12 | The method of manufacturing metal-base compound bimetallic article by centrifugation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109913793A (en) |
-
2017
- 2017-12-12 CN CN201711313305.8A patent/CN109913793A/en not_active Withdrawn
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3511434B1 (en) | Process for producing ls-crnimo30c steel forging using continuous casting billet for subsea oil production wellhead device | |
| CN112899438A (en) | Method for duplex smelting of high-nitrogen steel by pressurized ladle refining and pressurized electroslag remelting | |
| KR100661199B1 (en) | Manufacturing method for aluminum wheel | |
| CN102965576B (en) | Preparation method of pump shaft of oil feed pump | |
| CN101941064A (en) | Method for manufacturing metal-base compound bimetallic article by centrifugation | |
| CN107737871A (en) | A kind of casting method of the pump housing | |
| CN101530899B (en) | Method for manufacturing bearing ring by adopting centrifugal casting technique | |
| CN104561665B (en) | Incone1718 alloy materials and its application in submersible electric pump slender axles | |
| CN109913793A (en) | The method of manufacturing metal-base compound bimetallic article by centrifugation | |
| CN102974825A (en) | Manufacturing method of drill bit | |
| CN107287521A (en) | A kind of gear casting production process | |
| CN104357732B (en) | One utilizes the ZG0Cr17Ni4Cu3Nb stainless method of revert melting and casting | |
| CN105149523A (en) | Casting die and technology for blank of top plate for solar energy | |
| CN104741562A (en) | Centrifugal casting method of flange casting | |
| CN105665649A (en) | Casting technology for high-strength bearing connector | |
| KR101341122B1 (en) | Apparatus and methods for manufacturing metal ring | |
| CN101972842A (en) | Sealed centrifugal casting method | |
| CN111101073A (en) | Flange preparation method based on three-plate mold | |
| CN108838340B (en) | Noble metal processing method | |
| CN113084123A (en) | Semi-solid die-casting forming process for aluminum alloy automobile parts | |
| CN110373609B (en) | Casting method of tool part blank for producing shearing thin-wall steel plate | |
| CN110625093A (en) | Preparation method of plate hammer, plate hammer and impact crusher comprising plate hammer | |
| CN113664154A (en) | Casting process for pump valve casting | |
| CN109482835A (en) | A kind of outer layer alloys steel internal layer aluminium alloy not uniform thickness ring-shaped casting blank manufacturing method | |
| CN110434344B (en) | Motor gear and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190621 |