CN106282678A - A kind of compressor piston formula and production technology thereof - Google Patents
A kind of compressor piston formula and production technology thereof Download PDFInfo
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- CN106282678A CN106282678A CN201510288828.6A CN201510288828A CN106282678A CN 106282678 A CN106282678 A CN 106282678A CN 201510288828 A CN201510288828 A CN 201510288828A CN 106282678 A CN106282678 A CN 106282678A
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- piston
- formula
- compressor
- compressor piston
- degrees celsius
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Abstract
nullThe present invention relates to a kind of compressor piston formula，Formula proportion is for be made up of following component and mass percent thereof: Al 78.15%-83.65%、Si 12%-16%、Cu 4%-5%、Mn ＜ 0.1、Mg 0.45%-0.65%，Through dissolving、Charging、Refine、Degasification、Casting、Cost compressor formula processed after the operation of machine tooling，The present invention have adjusted the ratio of element silicon in original piston formula，Element silicon ratio in aluminium alloy is classified as 12%-16%，Make its temperature requirement when entirety is in melting low，And after casting，Piston hardness is suitable in machine tooling few to the abrasion of cutter relative to the made piston of high silicon formula，And finished product piston is higher relative to low silicon formula its hardness of made piston，The coefficient of expansion is low，Service life is longer，And processing technique requires suitable with low silicon，Be suitable to large-scale promotion and application.
Description
Technical field
The present invention relates to a kind of piston formula being applied to compressor and its production technology.
Background technology
Piston set is collectively constituted by piston, piston pin and piston ring, and piston set is at connecting rod band
Under Dong, do reciprocating linear motion in cylinder, thus with cylinder etc. collectively constitute one variable
Swept volume, to realize the processes such as air-breathing, compression, aerofluxus, is the core of compressor.
Wherein, piston is one of key components and parts, and the material of piston is generally aluminium alloy or cast iron.Existing
Having in technology, the piston of compressor all uses all-aluminium piston, and the advantage of all-aluminium piston is matter
Amount is light, good heat conductivity, and surface has good wearability after anodising, but aluminium alloy
Piston is lower than the mechanical strength of cast-iron piston, it is the poorest to wear no resistance.The high silicon of release is had to contain on market
The all-aluminium piston of amount, its hardness is high, and the coefficient of expansion is low, but owing to smelting temperature requires height,
Production cost is high, and its high rigidity is big for producing cutter loss, is not suitable for large-scale application
Push through.
Summary of the invention
For the present situation of above-mentioned prior art, the technical problem to be solved is to provide
A kind of finished product piston hardness is high, the coefficient of expansion is low, and production cost is low, it is adaptable to the work of compressor
Plug formula and production technology thereof.
The present invention solves the technical scheme that above-mentioned technical problem used: a kind of compressor piston
Formula, is made up of following component and mass percent thereof: Al 78.15%-83.65%, Si 12%
-16%, Cu 4%-5%, Mn ＜ 0.1, Mg 0.45%-0.65%.
Further, described formula includes impurity element ＜ 0.1%.
The production technology of this compressor piston formula, comprises the following steps:
A, melting: main matter Al is put into concentration calciner and melts；
B, charging: adding Si in concentrating calciner, it is 800 degree Celsius-850 that temperature controls
Degree Celsius；
C, secondary charging: concentrate in calciner add according to a certain percentage Cu, Mn,
Mg；
D, refine: in hybrid metal liquid, add refining agent and be stirred, by mixture
Impurity removal；
E, degasification: by the mixture after refine by nitrogen degasification, the degasification time is 5 minutes；
F, casting: after molten metal temperature to be mixed is down to 700 degrees Celsius-730 degrees Celsius,
Cast in being injected into mould；
G, machine tooling: piston blank is processed.
Further, in described step d, the temperature of refine is 690 degrees Celsius-710 degrees Celsius,
Time is 5 minutes-8 minutes.
Further, in described step g, processing includes that lathe offers piston seam, boring piston
Pin-and-hole and grind, piston ring groove offered by lathe and cylindrical and cut out jump-ring slot.
Compared with prior art, it is an advantage of the current invention that: adjust in original piston formula
The ratio of element silicon, element silicon ratio in aluminium alloy is classified as 12%-16% so that its
Entirety temperature requirement when melting is low, and after casting, piston hardness is suitable in machine tooling
Few to the abrasion of cutter relative to the made piston of high silicon formula, and finished product piston is relative to low silicon
Formula its hardness of made piston is higher, and the coefficient of expansion is low, and service life is longer, and processes work
Skill requires suitable with low silicon, is suitable to large-scale promotion and application.
Detailed description of the invention
Below by embodiment, the present invention is described in further detail, and following example are right
The explanation of the present invention and the invention is not limited in following example.
A kind of compressor piston formula, is made up of following component and mass percent thereof: Al
80.9%, Si 14.5%, Cu 4%, Mn 0.05, Mg 0.5%, in preferred described formula
Impurity element controls less than 0.05%.
A, melting: Al is put into concentration calciner and melts；
B, charging: adding Si in concentrating calciner, it is 800 degree Celsius-850 that temperature controls
Degree Celsius；
C, secondary charging: concentrate in calciner add according to a certain percentage Cu, Mn,
Mg；
D, refine: in hybrid metal liquid, add refining agent and be stirred, by mixture
Impurity removal, temperature is 690 degrees Celsius-710 degrees Celsius, and the time is 5 points
Clock-8 minutes；
E, degasification: by the mixture after refine by nitrogen degasification, the degasification time is 5 minutes；
F, casting: after molten metal temperature to be mixed is down to 700 degrees Celsius-730 degrees Celsius,
Cast in being injected into mould；
G, machine tooling: be processed by piston blank, procedure of processing is followed successively by: lathe car
Go out the seam of piston；The pin-and-hole of lathe heavy boring piston；Lathe car goes out annular groove and the cylindrical of piston；
Lathe carries out right boring for pin-and-hole；Piston cutting is blocked spring groove by lathe；For pin-and-hole grind into
OK.
This compressor piston technique is simple, and the piston that finished product is made compared to low silicon formula has more
High hardness and the alloy coefficient of expansion is lower；The Piston Machining made compared to high silicon formula is wanted
Asking low, processing cost is low, is suitable to large-scale application in popularization.
Last it is noted that above example is only in order to illustrate technical scheme, and
Non-to its restriction；Although the present invention being described in detail with reference to previous embodiment, ability
Territory it will be appreciated by the skilled person that it still can be to the technical scheme described in previous embodiment
Modify, or wherein portion of techniques feature is replaced on an equal basis；And these amendment or
Replace, do not make the essence of appropriate technical solution depart from the essence of various embodiments of the present invention technical scheme
God and scope.
Claims (5)
1. a compressor piston formula, is made up of following component and mass percent thereof: Al
78.15%-83.65%, Si 12%-16%, Cu 4%-5%, Mn ＜ 0.1, Mg 0.45%
-0.65%.
A kind of compressor piston formula the most according to claim 1, it is characterised in that institute
State formula and include impurity element ＜ 0.1%.
3. a production technology for compressor piston, comprises the following steps:
A, melting: main matter Al is put into concentration calciner and melts；
B, charging: adding Si in concentrating calciner, it is 800 degree Celsius-850 that temperature controls
Degree Celsius；
C, secondary charging: concentrate in calciner add according to a certain percentage Cu, Mn,
Mg；
D, refine: in hybrid metal liquid, add refining agent and be stirred, by mixture
Impurity removal；
E, degasification: by the mixture after refine by nitrogen degasification, the degasification time is 5 minutes；
F, casting: after molten metal temperature to be mixed is down to 700 degrees Celsius-730 degrees Celsius,
Cast in being injected into mould；
G, machine tooling: piston blank is processed.
The production technology of a kind of compressor piston the most according to claim 3, its feature exists
In, in described step d, the temperature of refine is 690 degrees Celsius-710 degrees Celsius, and the time is 5
Minutes-8 minutes.
The production technology of a kind of compressor piston the most according to claim 3, its feature exists
In, in described step g processing include lathe offer piston seam, boring piston pin hole and grind,
Lathe is offered piston ring groove and cylindrical and cuts out jump-ring slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510288828.6A CN106282678A (en) | 2015-05-28 | 2015-05-28 | A kind of compressor piston formula and production technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510288828.6A CN106282678A (en) | 2015-05-28 | 2015-05-28 | A kind of compressor piston formula and production technology thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106282678A true CN106282678A (en) | 2017-01-04 |
Family
ID=57655166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510288828.6A Pending CN106282678A (en) | 2015-05-28 | 2015-05-28 | A kind of compressor piston formula and production technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106282678A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789456A (en) * | 2004-11-18 | 2006-06-21 | 东北大学 | Large-sized hypereutectic high-seleium aluminium alloy billet and preparation method thereof |
| CN103060625A (en) * | 2013-01-15 | 2013-04-24 | 福州钜全汽车配件有限公司 | High-copper high-nickel liquid forging aluminum alloy piston material and preparation method thereof |
-
2015
- 2015-05-28 CN CN201510288828.6A patent/CN106282678A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789456A (en) * | 2004-11-18 | 2006-06-21 | 东北大学 | Large-sized hypereutectic high-seleium aluminium alloy billet and preparation method thereof |
| CN103060625A (en) * | 2013-01-15 | 2013-04-24 | 福州钜全汽车配件有限公司 | High-copper high-nickel liquid forging aluminum alloy piston material and preparation method thereof |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |