CN112404401A - Coaxial multi-alloy centrifugal casting device and casting method thereof - Google Patents

Coaxial multi-alloy centrifugal casting device and casting method thereof Download PDF

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Publication number
CN112404401A
CN112404401A CN202011385885.3A CN202011385885A CN112404401A CN 112404401 A CN112404401 A CN 112404401A CN 202011385885 A CN202011385885 A CN 202011385885A CN 112404401 A CN112404401 A CN 112404401A
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China
Prior art keywords
casting
pouring
roller
shrouding
metal material
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Pending
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CN202011385885.3A
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Chinese (zh)
Inventor
鲁远勇
虞建平
虞越
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ZHENJIANG HUITONG METAL FORMING CO Ltd
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ZHENJIANG HUITONG METAL FORMING CO Ltd
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Priority to CN202011385885.3A priority Critical patent/CN112404401A/en
Publication of CN112404401A publication Critical patent/CN112404401A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00Casting in, on, or around objects which form part of the product
    • B22D19/16Casting 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D13/00Centrifugal casting; Casting by using centrifugal force
    • B22D13/10Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor, means for feeding molten metal, cleansing moulds, removing castings
    • B22D13/101Moulds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D13/00Centrifugal casting; Casting by using centrifugal force
    • B22D13/10Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor, means for feeding molten metal, cleansing moulds, removing castings
    • B22D13/107Means for feeding molten metal

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

The invention discloses a coaxial multi-alloy centrifugal casting device and a casting method thereof, and the device comprises a roller, wherein a casting mold is arranged on the inner wall of the roller, a first sealing plate is covered on the left sealing cover of the casting mold, a rotating shaft is arranged at the center of the left side of the sealing plate, a second sealing plate is arranged in the right inner cavity of the roller, the first sealing plate and the second sealing plate are respectively attached to the left side wall and the right side wall of the casting mold, limiting grooves are respectively formed in the upper end and the lower end of the right inner cavity of the roller, limiting pins are inserted into the inner cavities of the limiting grooves, and a pouring hopper is further inserted into. The invention solves the problems that in the traditional metal compounding process, a material is often poured on another material for compounding after being melted, and at the moment, the material possibly has gaps, the compounding effect is not good, and the material is easy to fall off.

Description

Coaxial multi-alloy centrifugal casting device and casting method thereof
Technical Field
The invention relates to the technical field of alloy casting, in particular to a coaxial multi-alloy centrifugal casting device and a casting method thereof.
Background
The casting alloy is an important engineering material, and plays a very important role in industrial and agricultural production, national defense construction and daily life of people, and particularly occupies a larger proportion in the machine manufacturing industry.
The rapid development of the modern cast alloy types and the smelting technology is mainly after the 50 th generation of the 20 th century, such as the great shortening of the annealing period of inoculated cast iron, nodular cast iron, vermicular cast iron and malleable cast iron, the development of the technology of smelting cast iron by an electric furnace, and the like. With the extensive and intensive research on various casting alloys, casting process methods and furnaces for smelting the casting alloys, a plurality of new technologies and new achievements are continuously applied to production, in the traditional metal compounding process, materials are often poured onto another material for compounding after being melted, at the moment, gaps may exist in the materials, the compounding effect is poor, and the materials are easy to fall off, so that a coaxial multi-alloy centrifugal casting device and a casting method thereof are designed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a coaxial multi-alloy centrifugal casting device and a casting method thereof, which solve the problems that in the traditional metal compounding process, a material is often poured on another material for compounding after being melted, and at the moment, gaps possibly exist in the material, the compounding effect is poor, and the material is easy to fall off.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a coaxial multiple alloy centrifugal casting device, includes the cylinder, the casting mould is installed to the inner wall of cylinder, the left side closing cap of casting mould has first shrouding, the left side center department of shrouding installs the axis of rotation, the second shrouding is installed to the right side inner chamber of cylinder, first shrouding and second shrouding are equallyd divide do not laminate with the left and right sides wall of casting mould mutually, the spacing groove has been opened respectively at both ends about the right side inner chamber of cylinder, the inner chamber of spacing groove is pegged graft and is had the spacer pin, the inner chamber of second shrouding still stretches into to install pours the fill.
In the centrifugal casting device and the casting method for the coaxial multi-alloy, the upper end and the lower end of the right side of the drum are respectively provided with the sealing groove matched with the second sealing plate.
In the centrifugal casting device and the casting method for the coaxial multiple alloys, the center of the inner cavity of the second sealing plate is provided with a pouring opening, and the pouring opening is matched with the pouring hopper.
A casting method of a coaxial multi-alloy centrifugal casting device comprises the following steps,
(1) melting a metal material to be poured, adding metallic tin and phosphor copper on the surface of the molten metal, and covering a furnace mouth with straw ash;
(2) deoxidizing the molten metal liquid after melting;
(3) then, the roller is subjected to bag repairing and drying, and the prepared cavity is comprehensively checked to ensure that the cavity is clean and has no sand grains;
(4) preheating a casting mould required by pouring before primary use;
(5) after preheating, connecting the rotating shaft with an external motor, turning on the motor, controlling the rotating speed of the roller, and pouring molten liquid metal into a casting mold from a pouring hopper;
(6) and (3) repeating the steps (1) to (2) on the metal material to be compounded, and pouring the metal material into a casting mold from a pouring hopper for compounding.
In the step (1), the metal material is added into the intermediate frequency furnace, then the returned material is added, the intermediate frequency furnace is started to heat, after the metal material is melted, the bottom of the metal material is detected by a stirring rod, and the metal block can not be detected, and finally the metal tin and the phosphor copper are added to cover the furnace mouth by the rice straw ash.
In the step (2), argon and phosphor copper are introduced for deoxidation, the argon introducing time is not less than 10 minutes, and the centrifugal casting device is degassed and then stands for 5 to 10 minutes.
In the casting method of the coaxial multiple-alloy centrifugal casting device, in the step (4), the furnace preheating temperature of the casting mold (2) is 1200-1250 ℃.
In the casting method of the coaxial multiple-alloy centrifugal casting device, in the step (6), the melting point of the metal material to be compounded is lower than the melting point of the metal material cast last time, and the metal material cast can be steel, iron, copper, aluminum, zinc, lead and tin in sequence.
In the step (5), the rotation speed of the drum (1) is 500-.
The invention has the beneficial effects that: the invention has reasonable structural design, the metal to be compounded on the mould is melted and poured, the mould is preheated before pouring to prevent the molten liquid from exploding when encountering a cold mould, meanwhile, the operations of repairing, packaging and drying are carried out, the prepared cavity is comprehensively checked to ensure that the cavity is clean and free of sand grains, the strength of the compounded casting is high, in the pouring process, the molten liquid is poured into the casting mould, the molten liquid can be instantly spread out due to the high-speed rotating state and compounded on the mould, then the intermittence is carried out for one minute, the liquid is solidified into solid, the next compound metal is poured, the compound adhesion degree is high, and the dislocation is avoided in the using process.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: 1. the casting device comprises a roller, 2, a casting mold, 3, a sealing plate, 4, a rotating shaft, 5, a second sealing plate, 501, a pouring opening, 6, a limiting groove, 7, a limiting pin and 8, and a pouring hopper.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1: the utility model provides a coaxial multiple alloy centrifugal casting device, including cylinder 1, casting mould 2 is installed to the inner wall of cylinder 1, casting mould 2's left side closing cap has first shrouding 3, the left side center department of shrouding 3 installs axis of rotation 4, second shrouding 5 is installed to cylinder 1's right side inner chamber, both ends are opened respectively about cylinder 1's the right side have with second shrouding 5 matched with seal groove, first shrouding 3 and second shrouding 5 are equallyd divide do not laminate with casting mould 2's left and right sides wall mutually, spacing groove 6 has been opened respectively at both ends about cylinder 1's the right side inner chamber, the inner chamber of spacing groove 6 is pegged graft and is had spacer pin 7, the inner chamber of second shrouding 5 still stretches into to install pours fill 8, the inner chamber center of second shrouding 5 is opened pour.
A casting method of a coaxial multi-alloy centrifugal casting device comprises the following steps,
(1) melting a metal material to be poured, adding metallic tin and phosphor copper on the surface of the molten metal, and covering a furnace mouth with straw ash;
(2) deoxidizing the molten metal liquid after melting;
(3) then, the roller (1) is subjected to bag repairing and drying, and the prepared cavity is comprehensively checked to ensure that the cavity is clean and has no sand grains;
(4) preheating a casting mould (2) required for pouring before primary use;
(5) after preheating, connecting the rotating shaft (4) with an external motor, turning on the motor, controlling the rotating speed of the roller (1), and pouring molten liquid metal into the casting mold (2) from the pouring hopper (8);
(6) and (3) repeating the steps (1) to (2) on the metal material to be compounded, and pouring the metal material into the casting mold (2) from the pouring hopper (8) for compounding.
Preferably, in the step (1), the metal material is added into the intermediate frequency furnace, then the returned material is added, the intermediate frequency furnace is started to heat, after the metal material is melted, a stirring rod is used for detecting the bottom to prevent the metal block from existing, and finally the metal tin and the phosphorus copper are added to cover the furnace mouth with the rice straw ash.
Preferably, in the step (2), argon and phosphor copper are introduced for deoxidation, the argon introducing time is not less than 10 minutes, and the mixture is degassed and then stands for 5 to 10 minutes.
Preferably, in the step (4), the preheating temperature in the furnace of the casting mold (2) is 1200-1250 ℃.
Preferably, in the step (5), the rotation speed of the roller (1) is 500-.
Preferably, in the step (6), the melting point of the metal material to be compounded is lower than the melting point of the metal material poured at the last time.
In conclusion, the invention has reasonable structural design, the metal to be compounded on the mould is melted and poured, the mould is preheated before pouring to prevent the molten liquid from exploding when encountering a cold mould, meanwhile, the operations of repairing, packaging and drying are carried out, the prepared cavity is comprehensively checked to ensure that the cavity is clean and free of sand grains, the strength of the compounded casting is high, in the pouring process, the molten liquid is poured into the casting mould, the molten liquid can be instantly spread and compounded on the mould due to the high-speed rotating state, then the interval is carried out for one minute, the liquid is solidified into solid, then the next compound metal is poured, the compound adhesion degree is high, the dislocation is avoided in the using process, the problem that the material is often poured onto another material for compounding after being molten in the traditional metal compounding process is solved, at the moment, gaps exist in the material, poor compounding effect and easy falling off.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (9)

1. A coaxial multiple alloy centrifugal casting device comprises a roller (1), and is characterized in that: casting mould (2) are installed to the inner wall of cylinder (1), the left side closing cap of casting mould (2) has first shrouding (3), the left side center department of shrouding (3) installs axis of rotation (4), second shrouding (5) are installed to the right side inner chamber of cylinder (1), first shrouding (3) and second shrouding (5) are equallyd divide do not laminate with the left and right sides wall of casting mould (2) mutually, spacing groove (6) have been opened respectively at both ends about the right side inner chamber of cylinder (1), the inner chamber of spacing groove (6) is pegged graft and is had spacer pin (7), the inner chamber of second shrouding (5) still stretches into to install and pour fill (8).
2. The apparatus for centrifugal casting of coaxial multiple alloys according to claim 1, wherein: and the upper end and the lower end of the right side of the roller (1) are respectively provided with a sealing groove matched with the second sealing plate (5).
3. The apparatus for centrifugal casting of coaxial multiple alloys according to claim 1, wherein: the center of the inner cavity of the second sealing plate (5) is provided with a pouring opening (501), and the pouring opening (501) is matched with the pouring hopper (8).
4. A casting method of a coaxial multiple alloy centrifugal casting apparatus according to claims 1 to 3, characterized in that: comprises the following steps of (a) carrying out,
(1) melting a metal material to be poured, adding metallic tin and phosphor copper on the surface of the molten metal, and covering a furnace mouth with straw ash;
(2) deoxidizing the molten metal liquid after melting;
(3) then, the roller (1) is subjected to bag repairing and drying, and the prepared cavity is comprehensively checked to ensure that the cavity is clean and has no sand grains;
(4) preheating a casting mould (2) required for pouring before primary use;
(5) after preheating, connecting the rotating shaft (4) with an external motor, turning on the motor, controlling the rotating speed of the roller (1), and pouring molten liquid metal into the casting mold (2) from the pouring hopper (8);
(6) and (3) repeating the steps (1) to (2) on the metal material to be compounded, and pouring the metal material into the casting mold (2) from the pouring hopper (8) for compounding.
5. The casting method of a coaxial multiple alloy centrifugal casting device according to claim 4, wherein: in the step (1), adding the metal material into the intermediate frequency furnace, adding the returned material, starting the intermediate frequency furnace for heating, after the metal material is molten, detecting the bottom by using a stirring rod and cannot sense the existence of the metal block, and finally adding the metal tin and the phosphorus copper to cover the furnace mouth by using the rice straw ash.
6. The casting method of a coaxial multiple alloy centrifugal casting device according to claim 4, wherein: and (3) in the step (2), introducing argon and phosphor copper for deoxidation, introducing the argon for not less than 10 minutes, degassing, and standing for 5-10 minutes.
7. The casting method of a coaxial multiple alloy centrifugal casting device according to claim 4, wherein: in the step (4), the preheating temperature in the furnace of the casting mold (2) is 1200-1250 ℃.
8. The casting method of a coaxial multiple alloy centrifugal casting device according to claim 4, wherein: in the step (5), the rotating speed of the roller (1) is 500-.
9. The casting method of a coaxial multiple alloy centrifugal casting device according to claim 4, wherein: in the step (6), the melting point of the metal material to be compounded is smaller than the melting point of the metal material poured at the last time.
CN202011385885.3A 2020-12-01 2020-12-01 Coaxial multi-alloy centrifugal casting device and casting method thereof Pending CN112404401A (en)

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Application Number Priority Date Filing Date Title
CN202011385885.3A CN112404401A (en) 2020-12-01 2020-12-01 Coaxial multi-alloy centrifugal casting device and casting method thereof

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Application Number Priority Date Filing Date Title
CN202011385885.3A CN112404401A (en) 2020-12-01 2020-12-01 Coaxial multi-alloy centrifugal casting device and casting method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU592517A1 (en) * 1976-10-04 1978-02-15 Предприятие П/Я В-8173 Mould for centrifugal casting of bimetallic tubes
SU986585A1 (en) * 1981-10-05 1983-01-07 Институт проблем литья АН УССР Apparatus for pouring centrifugal moulds
US4536455A (en) * 1982-07-26 1985-08-20 Jgc Corporation Centrifugally cast double-layer tube with resistance to carbon deposition
CN85102836A (en) * 1985-04-01 1987-03-11 大连工学院 The method of centrifugal casting bi-metal double-pipe
JPH08238553A (en) * 1995-03-02 1996-09-17 Honda Motor Co Ltd Directional solidified casting method
CN1190041A (en) * 1997-02-05 1998-08-12 杜永康 Bimetallic centrifugal casting process for cylindrical casting
JP2000042705A (en) * 1998-07-28 2000-02-15 Kubota Corp Production of complex layer materials and complex layer materials
US20040040690A1 (en) * 2001-06-11 2004-03-04 Ranjan Ray Centrifugal casting of titanium alloys with improved surface quality, structural integrity and mechanical properties in isotropic graphite molds under vacuum
CN104294081A (en) * 2014-05-28 2015-01-21 镇江汇通金属成型有限公司 High-strength heat-resisting anti-friction casting tin-nickel bronze and preparation method thereof
CN104630521A (en) * 2013-11-08 2015-05-20 青岛宏泰铜业有限公司 Casting bronze melting technology
CN109513904A (en) * 2018-12-04 2019-03-26 湖南四昉新材料有限公司 A kind of processing method and bimetallic composite roll set of bimetallic composite roll set

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU592517A1 (en) * 1976-10-04 1978-02-15 Предприятие П/Я В-8173 Mould for centrifugal casting of bimetallic tubes
SU986585A1 (en) * 1981-10-05 1983-01-07 Институт проблем литья АН УССР Apparatus for pouring centrifugal moulds
US4536455A (en) * 1982-07-26 1985-08-20 Jgc Corporation Centrifugally cast double-layer tube with resistance to carbon deposition
CN85102836A (en) * 1985-04-01 1987-03-11 大连工学院 The method of centrifugal casting bi-metal double-pipe
JPH08238553A (en) * 1995-03-02 1996-09-17 Honda Motor Co Ltd Directional solidified casting method
CN1190041A (en) * 1997-02-05 1998-08-12 杜永康 Bimetallic centrifugal casting process for cylindrical casting
JP2000042705A (en) * 1998-07-28 2000-02-15 Kubota Corp Production of complex layer materials and complex layer materials
US20040040690A1 (en) * 2001-06-11 2004-03-04 Ranjan Ray Centrifugal casting of titanium alloys with improved surface quality, structural integrity and mechanical properties in isotropic graphite molds under vacuum
CN104630521A (en) * 2013-11-08 2015-05-20 青岛宏泰铜业有限公司 Casting bronze melting technology
CN104294081A (en) * 2014-05-28 2015-01-21 镇江汇通金属成型有限公司 High-strength heat-resisting anti-friction casting tin-nickel bronze and preparation method thereof
CN109513904A (en) * 2018-12-04 2019-03-26 湖南四昉新材料有限公司 A kind of processing method and bimetallic composite roll set of bimetallic composite roll set

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Application publication date: 20210226