CN111112584A - Cylinder block and manufacturing method thereof - Google Patents
Cylinder block and manufacturing method thereof Download PDFInfo
- Publication number
- CN111112584A CN111112584A CN202010005893.4A CN202010005893A CN111112584A CN 111112584 A CN111112584 A CN 111112584A CN 202010005893 A CN202010005893 A CN 202010005893A CN 111112584 A CN111112584 A CN 111112584A
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- CN
- China
- Prior art keywords
- foaming
- cylinder block
- manufacturing
- aluminum
- stirring
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- 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.)
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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
- B22D25/00—Special casting characterised by the nature of the product
- B22D25/005—Casting metal foams
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- 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
- C22C1/08—Alloys with open or closed pores
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- 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
- C22C1/08—Alloys with open or closed pores
- C22C1/083—Foaming process in molten metal other than by powder metallurgy
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention relates to the technical field of compressors and discloses an air cylinder seat and a manufacturing method thereof. The manufacturing method comprises the following steps of heating the foaming mold and melting aluminum at the same time; pouring molten aluminum into the preheated foaming mold, and placing the foaming mold in a constant temperature furnace; adding metal calcium particles when the temperature of the aluminum liquid is stabilized to be the same as or close to the temperature of the constant temperature furnace, and stirring simultaneously; adding a foaming agent and stirring to obtain a pre-foaming melt; transferring the pre-foaming melt and the foaming mold into a vacuum tank, and vacuumizing the vacuum tank by using a vacuum pump; and (4) preserving the temperature, foaming for a period of time, and then cooling to form the cylinder seat. According to the invention, the foamed aluminum is used for manufacturing the cylinder seat, and the foamed aluminum has the characteristics of high strength, energy absorption, vibration reduction and high sound absorption capacity, so that the cylinder seat has the sound absorption and vibration reduction functions, and the generation of larger noise and vibration is avoided; meanwhile, the foamed aluminum has light weight, so that the quality of the cylinder seat is reduced, and the cylinder seat is convenient to carry.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a cylinder block and a manufacturing method thereof.
Background
The refrigerator compressor is widely made of cast iron to manufacture the cylinder block, the rigidity of the cylinder block is high, the inertia force generated by the piston connecting rod mechanism is transmitted to the shell through the cylinder block, and the generated noise and vibration are high; and the cast iron cylinder block has high density, so that the compressor has heavy weight and is inconvenient to carry and transport.
Disclosure of Invention
In order to solve the technical problems, the invention provides a cylinder block and a manufacturing method thereof, which avoid generating larger noise and vibration, reduce the mass of the cylinder block and facilitate carrying.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the cylinder block comprises a cylinder block main body, wherein the cylinder block main body is made of foamed aluminum.
A manufacturing method of a cylinder seat comprises the following steps:
step one, heating a foaming mould and melting aluminum at the same time;
step two, pouring molten aluminum into a preheated foaming mold, and placing the foaming mold in a constant temperature furnace;
step three, adding metal calcium particles when the temperature of the aluminum liquid is stabilized to be the same as or close to the temperature of the constant temperature furnace, and stirring simultaneously;
step four, adding a foaming agent and stirring to obtain a pre-foaming melt;
transferring the pre-foaming melt and the foaming mold into a vacuum tank, and vacuumizing the vacuum tank by using a vacuum pump;
and step six, insulating and foaming for a period of time, and then cooling to form the cylinder seat.
Preferably, in the first step, the foaming mold is heated to 300-350 ℃, and the temperature of the molten aluminum is kept at 700-720 ℃.
Preferably, in the second step, a high-temperature resistant container is used for filling 180-220 g of molten aluminum into the preheated foaming mold; the temperature of the constant temperature furnace is 690-700 ℃.
Preferably, in the third step, the mass fraction of the metallic calcium is 1.5-2%.
Preferably, in the third step, a stirrer is adopted for stirring, the stirring speed is 700-750 r/min, and the stirring time is 5-10 min; the temperature difference between the aluminum liquid and the constant temperature furnace is +/-3 ℃.
Preferably, in the fourth step, the foaming agent is 1-2% of TiH2 by mass.
Preferably, in the fourth step, a stirrer is adopted for stirring, the stirring speed is 700-750 r/min, and the stirring time is 20-50 s.
Preferably, in the fifth step, the vacuumizing time is 30-40 s, and the vacuum degree is 1-50 Pa.
Preferably, in the sixth step, the heat preservation foaming time is 5-20 min, and the cooling time is 5-10 min.
Compared with the prior art, the cylinder seat and the manufacturing method thereof provided by the embodiment of the invention have the beneficial effects that: the cylinder seat is made of foamed aluminum, and the foamed aluminum has the characteristics of high strength, energy absorption, vibration reduction and sound absorption capacity, so that the cylinder seat has the sound absorption and vibration reduction functions, and the generation of large noise and vibration is avoided; meanwhile, the foamed aluminum has light weight, so that the quality of the cylinder seat is reduced, and the cylinder seat is convenient to carry. The invention has good use effect and is easy to popularize and use.
Drawings
FIG. 1 is a schematic structural view of one embodiment of a cylinder block of the present invention.
FIG. 2 is a schematic flow chart of a method of manufacturing a cylinder block according to the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1, a cylinder block according to a preferred embodiment of the present invention includes a cylinder block main body, and the cylinder block main body is made of foamed aluminum.
It should be noted that the cylinder block of the present invention may be any cylinder block in the prior art, so the specific structure thereof is not limited to fig. 1 of the present specification, fig. 1 is a schematic specific structure diagram of only one embodiment thereof, and since the specific structure of any cylinder block in the prior art is the prior art, it is not listed here.
According to the cylinder seat based on the technical characteristics, the foamed aluminum is used for manufacturing the cylinder seat, and the foamed aluminum has the characteristics of high strength, energy absorption, vibration reduction and high sound absorption capacity, so that the cylinder seat has the sound absorption and vibration reduction functions, and the generation of large noise and vibration is avoided; meanwhile, the foamed aluminum has light weight, so that the quality of the cylinder seat is reduced, and the cylinder seat is convenient to carry. The invention has good use effect and is easy to popularize and use.
In addition, the cylinder block may be made of other foamed metals such as copper foam and steel foam, in addition to aluminum foam.
Referring to fig. 2, in order to solve the above technical problem, the present embodiment further provides a method for manufacturing a cylinder block, including the following steps:
heating a foaming mold and melting aluminum at the same time, wherein the foaming mold is heated to 300-350 ℃, and the temperature of the melted aluminum is kept at 700-720 ℃;
step two, pouring molten aluminum into the preheated foaming mold, filling 180-220 g of molten aluminum into the high-temperature-resistant container during pouring, and placing the foaming mold into a constant-temperature furnace at the temperature of 690-700 ℃ after pouring;
and step three, adding metal calcium particles when the temperature of the aluminum liquid is stabilized to be the same as or close to the temperature of the constant temperature furnace, and adding metal calcium for tackifying, wherein the mass fraction of the metal calcium is 1.5% -2%. And (3) stirring by adopting a stirrer after the metal calcium is added, wherein the stirring speed is 700-750 r/min, and the stirring time is 5-10 min. Preferably, the temperature of the aluminum liquid is stabilized to be the same as the temperature of the constant temperature furnace, and calcium metal particles are added, and if the temperature of the aluminum liquid is different from the temperature of the constant temperature furnace, the temperature difference is +/-3 ℃;
step four, adding a foaming agent and stirring after the tackifying is finished, wherein the foaming agent is TiH2 with the mass fraction of 1% -2%, stirring by using a stirrer at the stirring speed of 700-750 r/min for 20-50 s, and stopping stirring to obtain a pre-foamed melt;
transferring the pre-foaming melt and the foaming mold into a vacuum tank, and vacuumizing the vacuum tank by using a vacuum pump for 30-40 s to ensure that the vacuum degree in the vacuum tank is 1-50 Pa;
and sixthly, insulating and foaming for a period of time, and then cooling, wherein preferably, the insulating and foaming time is 5-20 min, the cooling time is 5-10 min, and the cylinder seat is formed after cooling is finished. The aperture of the foam hole of the formed air cylinder seat is 0.5-2 mm, and the thickness of the foam surface layer is 1-3 mm.
According to the cylinder seat manufactured by the method, the foamed aluminum is used for manufacturing the cylinder seat, and the foamed aluminum has the characteristics of high strength, energy absorption, vibration reduction and high sound absorption capacity, so that the cylinder seat has the sound absorption and vibration reduction functions, and the generation of larger noise and vibration is avoided; meanwhile, the foamed aluminum has light weight, so that the quality of the cylinder seat is reduced, and the cylinder seat is convenient to carry. The invention has good use effect and is easy to popularize and use.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A cylinder block comprising a cylinder block body, characterized in that: the cylinder seat main body is made of foamed aluminum.
2. A method of making the cylinder block of claim 1, wherein: the method comprises the following steps:
step one, heating a foaming mould and melting aluminum at the same time;
step two, pouring molten aluminum into a preheated foaming mold, and placing the foaming mold in a constant temperature furnace;
step three, adding metal calcium particles when the temperature of the aluminum liquid is stabilized to be the same as or close to the temperature of the constant temperature furnace, and stirring simultaneously;
step four, adding a foaming agent and stirring to obtain a pre-foaming melt;
transferring the pre-foaming melt and the foaming mold into a vacuum tank, and vacuumizing the vacuum tank by using a vacuum pump;
and step six, insulating and foaming for a period of time, and then cooling to form the cylinder seat.
3. The method of manufacturing a cylinder block according to claim 2, wherein: in the first step, the foaming mold is heated to 300-350 ℃, and the temperature of the molten aluminum is kept at 700-720 ℃.
4. The method of manufacturing a cylinder block according to claim 2, wherein: in the second step, a high-temperature-resistant container is used for filling 180-220 g of molten aluminum into the preheated foaming mold; the temperature of the constant temperature furnace is 690-700 ℃.
5. The method of manufacturing a cylinder block according to claim 2, wherein: in the third step, the mass fraction of the metal calcium is 1.5-2%.
6. The method of manufacturing a cylinder block according to claim 2, wherein: in the third step, a stirrer is adopted for stirring, the stirring speed is 700-750 r/min, and the stirring time is 5-10 min; the temperature difference between the aluminum liquid and the constant temperature furnace is +/-3 ℃.
7. The method of manufacturing a cylinder block according to claim 2, wherein: in the fourth step, the foaming agent is TiH2 with the mass fraction of 1-2%.
8. The method of manufacturing a cylinder block according to claim 2, wherein: in the fourth step, a stirrer is adopted for stirring, the stirring speed is 700-750 r/min, and the stirring time is 20-50 s.
9. The method of manufacturing a cylinder block according to claim 2, wherein: in the fifth step, the vacuumizing time is 30-40 s, and the vacuum degree is 1-50 Pa.
10. The method of manufacturing a cylinder block according to claim 2, wherein: in the sixth step, the heat preservation foaming time is 5-20 min, and the cooling time is 5-10 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010005893.4A CN111112584A (en) | 2020-01-03 | 2020-01-03 | Cylinder block and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010005893.4A CN111112584A (en) | 2020-01-03 | 2020-01-03 | Cylinder block and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111112584A true CN111112584A (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010005893.4A Pending CN111112584A (en) | 2020-01-03 | 2020-01-03 | Cylinder block and manufacturing method thereof |
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| CN (1) | CN111112584A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05141349A (en) * | 1991-11-18 | 1993-06-08 | Toshiba Corp | Closed type compressor |
| JPH06306672A (en) * | 1993-04-26 | 1994-11-01 | Denki Kagaku Kogyo Kk | Composite material-reinforcing member and its production and composite material |
| JP2003065241A (en) * | 2001-08-29 | 2003-03-05 | Pilot Ink Co Ltd | Portable compressor |
| JP2004278380A (en) * | 2003-03-14 | 2004-10-07 | Mitsubishi Electric Corp | Compressor |
| JP2010053414A (en) * | 2008-08-29 | 2010-03-11 | Mitsubishi Electric Corp | Porous material, sound absorbing and insulating structure, electric equipment, vacuum cleaner and method for producing porous material |
| CN102002607A (en) * | 2010-12-14 | 2011-04-06 | 东莞理工学院 | Method for preparing foamed aluminum by foaming melt |
| CN106735248A (en) * | 2016-12-02 | 2017-05-31 | 昆明理工大学 | A kind of vacuum foam preparation method of aluminium foam sandwich plate |
| CN207363728U (en) * | 2017-10-20 | 2018-05-15 | 嘉峪关天源新材料有限责任公司 | A kind of diesel engine oil pan of vibration and noise reducing |
| CN207761951U (en) * | 2018-01-17 | 2018-08-24 | 广东美芝制冷设备有限公司 | Housing unit and compressor |
-
2020
- 2020-01-03 CN CN202010005893.4A patent/CN111112584A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05141349A (en) * | 1991-11-18 | 1993-06-08 | Toshiba Corp | Closed type compressor |
| JPH06306672A (en) * | 1993-04-26 | 1994-11-01 | Denki Kagaku Kogyo Kk | Composite material-reinforcing member and its production and composite material |
| JP2003065241A (en) * | 2001-08-29 | 2003-03-05 | Pilot Ink Co Ltd | Portable compressor |
| JP2004278380A (en) * | 2003-03-14 | 2004-10-07 | Mitsubishi Electric Corp | Compressor |
| JP2010053414A (en) * | 2008-08-29 | 2010-03-11 | Mitsubishi Electric Corp | Porous material, sound absorbing and insulating structure, electric equipment, vacuum cleaner and method for producing porous material |
| CN102002607A (en) * | 2010-12-14 | 2011-04-06 | 东莞理工学院 | Method for preparing foamed aluminum by foaming melt |
| CN106735248A (en) * | 2016-12-02 | 2017-05-31 | 昆明理工大学 | A kind of vacuum foam preparation method of aluminium foam sandwich plate |
| CN207363728U (en) * | 2017-10-20 | 2018-05-15 | 嘉峪关天源新材料有限责任公司 | A kind of diesel engine oil pan of vibration and noise reducing |
| CN207761951U (en) * | 2018-01-17 | 2018-08-24 | 广东美芝制冷设备有限公司 | Housing unit and compressor |
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Application publication date: 20200508 |
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