CN105950831A - Heat treatment method of thin-wall air conditioner bearing outer sleeve - Google Patents
Heat treatment method of thin-wall air conditioner bearing outer sleeve Download PDFInfo
- Publication number
- CN105950831A CN105950831A CN201610370295.0A CN201610370295A CN105950831A CN 105950831 A CN105950831 A CN 105950831A CN 201610370295 A CN201610370295 A CN 201610370295A CN 105950831 A CN105950831 A CN 105950831A
- Authority
- CN
- China
- Prior art keywords
- thin
- air conditioner
- outer sleeve
- parts
- bearing outer
- 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
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/60—Aqueous agents
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
Abstract
The invention discloses a heat treatment method of a thin-wall air conditioner bearing outer sleeve. The method comprises the steps of quenching, cooling and tempering, wherein quenching heating uses secondary heating, and concretely comprises the steps that the thin-wall air conditioner bearing outer sleeve is preheated at 650 to 700 DEG C, and is then heated to 800 to 850 DEG C; heat insulation is performed for 10 to 15 minutes; the thin-wall air conditioner bearing outer sleeve subjected to heat insulation is put into hot oil being 70 to 90 DEG C to be cooled for 2 to 5 minutes, and is then put into machine oil being 30 to 50 DEG C; then, the thin-wall air conditioner bearing outer sleeve is put into air to be subjected to air cooling for 30 minutes, and is then put into an environment being -70 DEG C to be frozen for 2 to 3 hours; next, the thin-wall air conditioner bearing outer sleeve is put in a room temperature environment; and after the temperature of the thin-wall air conditioner bearing outer sleeve becomes the room temperature, the tempering is performed for 3 hours, and the tempering temperature is 180 DEG C. The heat treatment method has the advantages that the secondary heating is used, so that the uniform heating is ensured, and the stress before the quenching is eliminated; the step quenching is used, so that the deformation at the weak part of the thin-wall air conditioner bearing outer sleeve is reduced; and the thin-wall air conditioner bearing outer sleeve is subjected to cryogenic treatment, and the structure refinement and tiny carbide precipitation processes are performed. Compared with the ordinary cold treatment, the cryogenic treatment achieves the effect of improving the wearing-resistant performance.
Description
Technical field
The invention belongs to the Field of Heat-treatment of air-conditioning axle sleeve, it is more particularly related to a kind of thin-walled is empty
Adjust the heat treatment method of bearing outside.
Background technology
Bearing arrangement generally includes inner ring, outer ring, keeper and rolling element, and the effect of bearing cage is to draw
Lead and drive rolling element to roll on correct raceway；The bearing outside of thin-walled owing to its precision is high, pacify very much
Quiet and bearing capacity is very strong, is widely applied.But, thin-wall bearing overcoat is the most easily
There is the phenomenon that form tolerance is the most overproof, ovalizing deflection occurs, it has to carry out deforming serious lasso
Revise.This has resulted in unnecessary operation so that the course of processing is complicated, and efficiency is low.
Summary of the invention
It is an object of the present invention to provide the heat treatment method of a kind of thin-walled air-conditioning bearing outside, reduce thin-walled air-conditioning axle
Hold the deformation of overcoat.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is:
The heat treatment method of a kind of thin-walled air-conditioning bearing outside, including quenching, cooling and tempering step, quenching
Heating uses two grades of heating, particularly as follows: use 650～700 DEG C of preheatings, is again heated to 800～850 DEG C, protects
The temperature time is 10～15 minutes, is put into by the thin-walled air-conditioning bearing outside after insulation in the deep fat of 70～90 DEG C cold
But 2～5 minutes, place in the machinery oil of 30～50 DEG C, place into air hollow cold 30 minutes, then put
Enter freezing 2～3 hours in the environment of subzero 70 DEG C, then put to room temperature environment, wait outside thin-walled air-conditioning bearing
After the temperature of set returns to room temperature, carrying out being tempered 3 hours, temperature is 180 DEG C.
Preferably, coolant includes by weight: oleic acid 10-20 part, ammonia 12-25 part, phosphatidic acid 10-30
Part, triethanolamine 5-10 part, dehydrated alcohol 0.2-1 part, antirust agent 1-5 part, emulsifying agent 15-25 part, ten
Dialkylene succinic acid 0.8-2 part, organic silicon defoamer 0.03-0.5 part.
Preferably, coolant includes by weight: oleic acid 15 parts, ammonia 18 parts, phosphatidic acid 20 parts, three
Ethanolamine 8 parts, dehydrated alcohol 0.6 part, antirust agent 2 parts, emulsifying agent 20 parts, dodecenylsuccinic acid 1.2
Part, organic silicon defoamer 0.3 part.
The invention has the beneficial effects as follows:
The present invention uses post bake, it is ensured that uniformly heat, and eliminates the stress before quenching；Classification is used to quench again
Fire, reduces the deformation of thin-walled air-conditioning bearing outside weakness；Thin-walled air-conditioning bearing outside through subzero treatment,
The refinement organized and the precipitation process of tiny carbide；Compared with common cold treatment, wearability obtains
Improve.
Detailed description of the invention
Hereinafter embodiments of the invention are described in detail, but the present invention can be defined by the claims and
The multitude of different ways covered is implemented.
Embodiment one
The heat treatment method of a kind of thin-walled air-conditioning bearing outside, including quenching, cooling and tempering step, quenching
Heating uses two grades of heating, particularly as follows: use 650 DEG C of preheatings, is again heated to 800 DEG C, and temperature retention time is
10 minutes, the thin-walled air-conditioning bearing outside after insulation is put in the deep fat of 70 DEG C and cool down 2 minutes, then put
Enter in the machinery oil of 30 DEG C, place into air hollow cold 30 minutes, place in the environment of subzero 70 DEG C cold
Freeze 2 hours, then put to room temperature environment, after waiting the temperature of thin-walled air-conditioning bearing outside to return to room temperature, enter
Row tempering 3 hours, temperature is 180 DEG C.
Coolant includes by weight: oleic acid 10 parts, ammonia 12 parts, phosphatidic acid 30 parts, triethanolamine
5 parts, dehydrated alcohol 0.2 part, antirust agent 1 part, emulsifying agent 15 parts, dodecenylsuccinic acid 0.8 part,
Organic silicon defoamer 0.03 part.
Embodiment two
The heat treatment method of a kind of thin-walled air-conditioning bearing outside, including quenching, cooling and tempering step, quenching
Heating uses two grades of heating, particularly as follows: use 680 DEG C of preheatings, is again heated to 830 DEG C, and temperature retention time is 12
Minute, the thin-walled air-conditioning bearing outside after insulation is put in the deep fat of 80 DEG C and cool down 4 minutes, place into 40 DEG C
Machinery oil in, place into air hollow cold 30 minutes, place in the environment of subzero 70 DEG C freezing 2.5 little
Time, then put to room temperature environment, after waiting the temperature of thin-walled air-conditioning bearing outside to return to room temperature, carry out being tempered 3
Hour, temperature is 180 DEG C.
Coolant includes by weight: oleic acid 15 parts, ammonia 18 parts, phosphatidic acid 20 parts, triethanolamine
8 parts, dehydrated alcohol 0.6 part, antirust agent 2 parts, emulsifying agent 20 parts, dodecenylsuccinic acid 1.2 parts,
Organic silicon defoamer 0.3 part.
Embodiment three
The heat treatment method of a kind of thin-walled air-conditioning bearing outside, including quenching, cooling and tempering step, quenching
Heating uses two grades of heating, particularly as follows: use 700 DEG C of preheatings, is again heated to 850 DEG C, and temperature retention time is
15 minutes, the thin-walled air-conditioning bearing outside after insulation is put in the deep fat of 90 DEG C and cool down 5 minutes, then put
Enter in the machinery oil of 50 DEG C, place into air hollow cold 30 minutes, place in the environment of subzero 70 DEG C cold
Freeze 3 hours, then put to room temperature environment, after waiting the temperature of thin-walled air-conditioning bearing outside to return to room temperature, enter
Row tempering 3 hours, temperature is 180 DEG C.
Coolant includes by weight: oleic acid 20 parts, ammonia 25 parts, phosphatidic acid 10 parts, triethanolamine
10 parts, dehydrated alcohol 1 part, antirust agent 5 parts, emulsifying agent 25 parts, dodecenylsuccinic acid 2 parts, have
Machine silicon defoaming agent 0.5 part.
Coolant not only acts as cooling effect, also has excellent lubricity, rust-preventing characteristic.
Invention described above embodiment, is not intended that limiting the scope of the present invention, Ren He
Amendment, equivalent and the improvement etc. made within the spirit and principles in the present invention, should be included in the present invention
Claims within.
Claims (3)
1. the heat treatment method of a thin-walled air-conditioning bearing outside, it is characterised in that include quenching, cooling and
Tempering step, Quench heating uses two grades of heating, particularly as follows: use 650～700 DEG C of preheatings, is again heated to
800～850 DEG C, temperature retention time is 10～15 minutes, will insulation after thin-walled air-conditioning bearing outside put into 70～
The deep fat of 90 DEG C cools down 2～5 minutes, places in the machinery oil of 30～50 DEG C, place into air hollow cold
30 minutes, place into freezing 2～3 hours in the environment of subzero 70 DEG C, then put to room temperature environment, etc.
After the temperature of thin-walled air-conditioning bearing outside returns to room temperature, carrying out being tempered 3 hours, temperature is 180 DEG C.
A kind of heat treatment method of thin-walled air-conditioning bearing outside, it is characterised in that
Coolant includes by weight: oleic acid 10-20 part, ammonia 12-25 part, phosphatidic acid 10-30 part, three ethanol
Amine 5-10 part, dehydrated alcohol 0.2-1 part, antirust agent 1-5 part, emulsifying agent 15-25 part, laurylene base fourth two
Acid 0.8-2 part, organic silicon defoamer 0.03-0.5 part.
A kind of heat treatment method of thin-walled air-conditioning bearing outside, it is characterised in that
Coolant includes by weight: oleic acid 15 parts, ammonia 18 parts, phosphatidic acid 20 parts, triethanolamine 8 parts,
Dehydrated alcohol 0.6 part, antirust agent 2 parts, emulsifying agent 20 parts, dodecenylsuccinic acid 1.2 parts, organosilicon
Defoamer 0.3 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610370295.0A CN105950831A (en) | 2016-05-27 | 2016-05-27 | Heat treatment method of thin-wall air conditioner bearing outer sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610370295.0A CN105950831A (en) | 2016-05-27 | 2016-05-27 | Heat treatment method of thin-wall air conditioner bearing outer sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105950831A true CN105950831A (en) | 2016-09-21 |
Family
ID=56911092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610370295.0A Pending CN105950831A (en) | 2016-05-27 | 2016-05-27 | Heat treatment method of thin-wall air conditioner bearing outer sleeve |
Country Status (1)
| Country | Link |
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| CN (1) | CN105950831A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111041184A (en) * | 2019-12-03 | 2020-04-21 | 安徽绩溪徽山链传动有限公司 | Quenching process with pretreatment function based on austenitization of pin shaft |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104328266A (en) * | 2014-12-02 | 2015-02-04 | 江阴吉爱倍万达精工有限公司 | Heat treatment process of large-diameter thin-walled bearing ring |
| CN105149876A (en) * | 2015-08-31 | 2015-12-16 | 安庆银亿轴承有限公司 | Machining process of air conditioner bearing cover |
| CN105316455A (en) * | 2015-12-15 | 2016-02-10 | 常熟市常轴轴承有限公司 | Ultralight bearing heat treatment process |
| CN105506235A (en) * | 2015-12-15 | 2016-04-20 | 常熟市常轴轴承有限公司 | Heat treatment process of high carbon chromium bearing steel bearing ring |
-
2016
- 2016-05-27 CN CN201610370295.0A patent/CN105950831A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104328266A (en) * | 2014-12-02 | 2015-02-04 | 江阴吉爱倍万达精工有限公司 | Heat treatment process of large-diameter thin-walled bearing ring |
| CN105149876A (en) * | 2015-08-31 | 2015-12-16 | 安庆银亿轴承有限公司 | Machining process of air conditioner bearing cover |
| CN105316455A (en) * | 2015-12-15 | 2016-02-10 | 常熟市常轴轴承有限公司 | Ultralight bearing heat treatment process |
| CN105506235A (en) * | 2015-12-15 | 2016-04-20 | 常熟市常轴轴承有限公司 | Heat treatment process of high carbon chromium bearing steel bearing ring |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111041184A (en) * | 2019-12-03 | 2020-04-21 | 安徽绩溪徽山链传动有限公司 | Quenching process with pretreatment function based on austenitization of pin shaft |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20160921 |