CN105506445A - Cast alloy for housing of refrigerator compressor - Google Patents
Cast alloy for housing of refrigerator compressor Download PDFInfo
- Publication number
- CN105506445A CN105506445A CN201510959726.2A CN201510959726A CN105506445A CN 105506445 A CN105506445 A CN 105506445A CN 201510959726 A CN201510959726 A CN 201510959726A CN 105506445 A CN105506445 A CN 105506445A
- Authority
- CN
- China
- Prior art keywords
- alloy
- cast iron
- cast
- casting alloy
- housing
- 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.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
Abstract
The invention discloses a cast alloy for a housing of a refrigerator compressor. The cast alloy for the housing of the refrigerator compressor is characterized by being prepared through adding some alloy elements in common cast iron, and placing the alloy elements in a boiler and calcining; the alloy elements comprise copper, silicon, manganese, aluminium, titanium and nickel; the calcined cast alloy needs to be subjected to a heat treatment process to refine grains; and the heat treatment comprises three procedures of stress relief annealing, high-temperature annealing and surface quenching. The cast alloy for the housing of the refrigerator compressor is high in compression resistance, wear-resistant and friction-reducing, and high in shock absorption; some alloy elements are added in the common cast iron to improve the structure of the cast iron, thus the mechanical properties of the cast iron are improved, and the strength and the hardness are obviously increased compared with the common cast iron; and the service life of the alloy can also be prolonged due to forging processing.
Description
Technical field
The present invention relates to appliance field, particularly relate to a kind of freezer compressor shell casting alloy.
Background technology
Cast alloy iron refers to and in plain cast iron, adds alloying element and the cast iron with property.Usually the alloying element added has silicon, manganese, phosphorus, nickel, chromium, molybdenum, copper, aluminium, boron, vanadium, titanium, antimony, tin etc.Cast alloy iron is divided into low-alloy cast iron (alloying element content <3%), interalloy cast iron (alloying element content is >10%) according to the add-on of alloying element.Alloying element can make cast iron matrix tissue change, thus make cast iron obtain special heat-resisting, wear-resisting, corrosion-resistant, without magnetic and the physical-chemical performance such as low temperature resistant, therefore this cast iron is also named " property cast iron ", and cast alloy iron is widely used in the departments such as manufacture, metallurgical mine, chemical industry, measurement instrument industry and Refrigeration Technique.Forging the carbon 0.08-0.16%, silicon less than 0.8%, manganese less than 1.0%, chromium 11.5-I7.0% and all the other ratios that comprise weight percent is iron.When the transformation temperature of forging temperature not higher than stainless δ ferrite, stainless steel to carry out smoothly forging between temperature under the pressure of the temperature of 720-960 DEG C and 580-860 ton.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of freezer compressor shell casting alloy, and can improve mechanical property, crushing resistance is good, resistance toly wears away wiping.
The technical scheme that the present invention adopts is: provide a kind of freezer compressor shell casting alloy, it is characterized in that, described freezer compressor shell casting alloy adds alloying elements and puts into boiler together and calcine in plain cast iron, described alloying element comprises: copper, silicon, manganese, aluminium, titanium and nickel, the casting alloy calcined needs through thermal treatment process by grain refine, and thermal treatment comprises: stress relief annealing, high temperature annealing and hard surfacing three road program.
Further, described cast iron is made up of iron, carbon and silicon.
Further, the temperature of described stress relief annealing is at 450 DEG C ~ 550 DEG C.
Further, the temperature of described high temperature annealing is 750 DEG C ~ 850 DEG C.
The invention has the beneficial effects as follows: a kind of freezer compressor shell of the present invention casting alloy, compressive property is good, resistance toly wear away wiping, damping property is good, the tissue of cast iron is improved by adding alloying elements in plain cast iron, improve its mechanical property, intensity hardness ratio plain cast iron significantly improves, and forging processing can also carry heavy alloyed work-ing life.
Embodiment
Below preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
A kind of freezer compressor shell casting alloy, it is characterized in that, described freezer compressor shell casting alloy adds alloying elements and puts into boiler together and calcine in plain cast iron, described cast iron is made up of iron, carbon and silicon, described alloying element comprises: copper, silicon, manganese, aluminium, titanium and nickel, cast(ing) surface can be made to form the oxide film of one deck densification thus improve casting strength, wherein aluminum oxide has very strong thermotolerance with silicon oxide, and nickel effect is in the alloy: solution strengthening, raising hardening capacity improve alloy oxidation-resistance at high temperature.Casting alloy through having calcined needs grain refine through thermal treatment process, thermal treatment comprises: stress relief annealing, high temperature annealing and hard surfacing three road program, the temperature of stress relief annealing is at 450 DEG C ~ 550 DEG C, and object is distortion or cracking when preventing processing, use; The temperature of high temperature annealing is 750 DEG C ~ 850 DEG C, and object improves the white button tissue of cast(ing) surface, improves machinability;
Casting alloy of the present invention, compressive property is good, resistance toly wears away wiping, damping property is good, improves the tissue of cast iron by adding alloying elements in plain cast iron, improves its mechanical property, intensity hardness ratio plain cast iron significantly improves, and forging processing can also carry heavy alloyed work-ing life.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. a freezer compressor shell casting alloy, it is characterized in that, described freezer compressor shell casting alloy adds alloying elements and puts into boiler together and calcine in plain cast iron, described alloying element comprises: copper, silicon, manganese, aluminium, titanium and nickel, the casting alloy calcined needs through thermal treatment process by grain refine, and thermal treatment comprises: stress relief annealing, high temperature annealing and hard surfacing three road program.
2. a kind of freezer compressor shell casting alloy according to claim 1, it is characterized in that, described cast iron is made up of iron, carbon and silicon.
3. a kind of freezer compressor shell casting alloy according to claim 1, is characterized in that, the temperature of described stress relief annealing is at 450 DEG C ~ 550 DEG C.
4. a kind of freezer compressor shell casting alloy according to claim 1, is characterized in that, the temperature of described high temperature annealing is 750 DEG C ~ 850 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510959726.2A CN105506445A (en) | 2015-12-21 | 2015-12-21 | Cast alloy for housing of refrigerator compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510959726.2A CN105506445A (en) | 2015-12-21 | 2015-12-21 | Cast alloy for housing of refrigerator compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105506445A true CN105506445A (en) | 2016-04-20 |
Family
ID=55714735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510959726.2A Pending CN105506445A (en) | 2015-12-21 | 2015-12-21 | Cast alloy for housing of refrigerator compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105506445A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101177759A (en) * | 2007-12-04 | 2008-05-14 | 北京工业大学 | Centrifugal composite modified indefinite chilled cast iron roller and preparation method thereof |
| CN101381837A (en) * | 2008-09-27 | 2009-03-11 | 莱州新忠耀机械有限公司 | Traction motor casing new material for high speed motor train set and fabrication technique thereof |
| CN103131938A (en) * | 2013-03-13 | 2013-06-05 | 苏州东海玻璃模具有限公司 | Metal type rare earth microalloyed D-type graphite cast iron glass mould and preparation method thereof |
| CN104073710A (en) * | 2014-06-24 | 2014-10-01 | 丹寨县真山机电有限公司 | Antifriction cast iron for air conditioner compressors and preparation method thereof |
-
2015
- 2015-12-21 CN CN201510959726.2A patent/CN105506445A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101177759A (en) * | 2007-12-04 | 2008-05-14 | 北京工业大学 | Centrifugal composite modified indefinite chilled cast iron roller and preparation method thereof |
| CN101381837A (en) * | 2008-09-27 | 2009-03-11 | 莱州新忠耀机械有限公司 | Traction motor casing new material for high speed motor train set and fabrication technique thereof |
| CN103131938A (en) * | 2013-03-13 | 2013-06-05 | 苏州东海玻璃模具有限公司 | Metal type rare earth microalloyed D-type graphite cast iron glass mould and preparation method thereof |
| CN104073710A (en) * | 2014-06-24 | 2014-10-01 | 丹寨县真山机电有限公司 | Antifriction cast iron for air conditioner compressors and preparation method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160420 |
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| WD01 | Invention patent application deemed withdrawn after publication |