CN105880948A - Preparation method of linings for bearing of air conditioner - Google Patents
Preparation method of linings for bearing of air conditioner Download PDFInfo
- Publication number
- CN105880948A CN105880948A CN201610351697.6A CN201610351697A CN105880948A CN 105880948 A CN105880948 A CN 105880948A CN 201610351697 A CN201610351697 A CN 201610351697A CN 105880948 A CN105880948 A CN 105880948A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/003—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass bearings
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
Abstract
The invention discloses a preparation method of linings for a bearing of an air conditioner. The preparation method of the linings for the bearing of the air conditioner comprises the following steps of a, casting a steel ingot, wherein the steel ingot is prepared from the following chemical components in percentages by weight: not less than 0.60 percent but not more than 0.75 percent of C, not less than 0.9 percent but not more than 1.4 percent of Si, not less than 0.5 percent but not more than 0.6 percent of Mn, not less than 0.05 percent but not more than 0.06 percent of Mo, not less than 0.005 percent but not more than 0.011 percent of P, not less than 0.005 percent but not more than 0.01 percent of S, not less than 1.4 percent but not more than 1.65 percent of Cr, not less than 0.06 percent but not more than 0.11 percent of Ni, not less than 0.08 percent but not more than 0.12 percent of Ti and the balance of iron and inevitable impurities; b, carrying out water cooling on a cast, carrying out phosphorization treatment on the cast through appearance acceptance after the water cooling, carrying out surface high-temperature phosphorization treatment on the cast, afterwards, drawing out a work piece, subsequently, straightening the work piece, correcting sizes, and rounding the work piece; c, heat treatment: carrying out surface controlled atmosphere heat treatment on the linings subjected to forging treatment; d, machining and shaping the linings; e, coarsely grinding double end faces; f, milling the end faces; and g, separating the linings by using a separating tool, arranging and putting the linings in a V-shaped groove of a lower milling plate of a miller in sequence, and carrying out spherical milling on the linings by using a ball grinder. By using the preparation method of the linings for the bearing of the air conditioner, the mechanical properties of the linings for the bearing are further improved; and the integral mechanical strength and the abrasive resistance performance are further increased.
Description
Technical field
The invention belongs to the manufacture field of air-conditioning axle sleeve, it is more particularly related to a kind of air-conditioning bearing
The preparation method of inner sleeve.
Background technology
Bearing is a kind of important spare part in plant equipment in the present age.Its major function is to support machinery to rotate
Body, reduces the coefficient of friction in its motor process, and ensures its rotating accuracy.By motor element frictional property
Difference, bearing can be divided into rolling bearing and the big class of sliding bearing two.Wherein rolling bearing the most normalized,
Seriation, but its radial dimension, vibration and noise are relatively big compared with sliding bearing, and price is the highest.Rolling
Dynamic bearing is typically made up of outer ring, inner ring, rolling element and retainer four part, be strictly speaking by outer ring,
Inner ring, rolling element, retainer, sealing, lubricating oil six big part composition.Mainly possess outer ring, inner ring, rolling
Kinetoplast just can mean rolling bearing surely.Mechanical strength and wearability for bearing inner sleeve require higher.
Summary of the invention
It is an object of the present invention to provide the preparation method of a kind of air-conditioning bearing inner sleeve, make the mechanical property of bearing inner sleeve
Improving further, overall mechanical strength and wearability performance improve further.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is:
The preparation method of a kind of air-conditioning bearing inner sleeve, comprises the following steps:
A, teeming, in steel ingot, chemical component weight percentage ratio is: 0.60%≤C≤0.75%, 0.9%≤
Si≤1.4%, 0.5%≤Mn≤0.6%, 0.05%≤Mo≤0.06%, 0.005%≤P≤0.011%, 0.005%
≤ S≤0.01%, 1.4%≤Cr≤1.65%, 0.06%≤Ni≤0.11%, 0.08%≤Ti≤0.12%, surplus
For ferrum and inevitable impurity；
B, cast temperature control at 1100 DEG C～1200 DEG C, casting temperature air cooling to 400 DEG C～enter when 500 DEG C
Row water-cooled, carries out bonderizing after water-cooled, surface high-temp bonderizing: at 110-125 DEG C after outward appearance is checked and accepted
At a temperature of carry out, the free acidity of phosphate solution is 1: 3-4 in the ratio of total acidity, and the process time is
50-60 minute, within the temperature range of being then heated to 1100 DEG C 1200 DEG C, then workpiece is pulled out, school afterwards
Directly, size is revised；
C, heat treatment
Inner sleeve after conducting forging processing is carried out surface Atmosphere controlling heat-treatment: Atmosphere controlling heat-treatment is at thermotropism
Reason stove is passed through mixed gas, nitrogen intake 125～145ml/min, ethanol intake 54～
70ml/min, propane intake is 24～43ml/min, and its furnace gas atmosphere composition weight portion scope control is at nitrogen
Gas content 45～55 parts, hydrogen content 25～28 parts, carbon dioxide content 10～12 parts；
D, machining shape: reduce allowance, prepare for mill processing；
E, corase grind Double End: use resin wheel to carry out grinding；
F, face machined flat: use resin wheel grinding, stock removal is less than corase grind processing；
G, interior apply mechanically to separate to be arranged in order every tool be put under grinder in the V-groove of nog plate, enter with ball mill
Row sphere grinds.
Preferably, in steel ingot, chemical component weight percentage ratio is: 0.65%≤C≤0.7%, 1.1%≤Si≤1.2%,
0.55%≤Mn≤0.6%, 0.055%≤Mo≤0.06%, 0.005%≤P≤0.01%, 0.005%≤S≤
0.009%, 1.4%≤Cr≤1.6%, 0.06%≤Ni≤0.1%, 0.09%≤Ti≤0.11%, surplus be ferrum and
Inevitably impurity.
Further, in step e, resin wheel is made up of the raw material of following percentage by weight:
Preferably, in step e, resin wheel is made up of the raw material of following percentage by weight:
Preferably, carborundum granularity is 5 μm.
Preferably, in step f, the granularity of resin wheel is 50 degree.
Preferably, in step d, machining order is: car large end face, car large end face inner diametric step groove, car
The inside and outside fillet of big end, car small end inner diameter fillet and external diameter fillet, car small end end face, car small end outer surface,
Car endoporus, raceway in car, the large and small oil duct of car, the large and small rib of car, car large and small rib fillet.
The invention has the beneficial effects as follows:
The present invention, by controlling the chemical composition of steel ingot, through casting, heat treatment, machines, roughly grinds and grinds
Mill, prepares high intensity air-conditioning bearing outer ring, and mechanical property is improved further, has saved product materials, outer ring
The wearability performance of overall mechanical strength and raceway improves further, improves the service life of product.
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.
The preparation method of a kind of air-conditioning bearing inner sleeve, comprises the following steps:
A, teeming, in steel ingot, chemical component weight percentage ratio is: chemical component weight percentage ratio in steel ingot
For: 0.65%≤C≤0.7%, 1.1%≤Si≤1.2%, 0.55%≤Mn≤0.6%, 0.055%≤Mo≤
0.06%, 0.005%≤P≤0.01%, 0.005%≤S≤0.009%, 1.4%≤Cr≤1.6%, 0.06%≤Ni
≤ 0.1%, 0.09%≤Ti≤0.11%, surplus is ferrum and inevitable impurity；
B, cast temperature control at 1100 DEG C～1200 DEG C, casting temperature air cooling to 400 DEG C～enter when 500 DEG C
Row water-cooled, carries out bonderizing after water-cooled, surface high-temp bonderizing: at 110-125 DEG C after outward appearance is checked and accepted
At a temperature of carry out, the free acidity of phosphate solution is 1: 3-4 in the ratio of total acidity, and the process time is
50-60 minute, within the temperature range of being then heated to 1100 DEG C 1200 DEG C, then workpiece is pulled out, afterwards
Alignment, correction size；
C, heat treatment
Inner sleeve after conducting forging processing is carried out surface Atmosphere controlling heat-treatment: Atmosphere controlling heat-treatment is at thermotropism
Reason stove is passed through mixed gas, nitrogen intake 125～145ml/min, ethanol intake 54～
70ml/min, propane intake is 24～43ml/min, and its furnace gas atmosphere composition weight portion scope control is at nitrogen
Gas content 45～55 parts, hydrogen content 25～28 parts, carbon dioxide content 10～12 parts；
D, machining shape, and machining order is: car large end face, car large end face inner diametric step groove, Che great Duan
Inside and outside fillet, car small end inner diameter fillet and external diameter fillet, car small end end face, car small end outer surface, in car
Hole, raceway in car, the large and small oil duct of car, the large and small rib of car, car large and small rib fillet, reduce allowance,
Prepare for mill processing；
E, corase grind Double End: use resin wheel to carry out grinding；
F, face machined flat: use resin wheel grinding, stock removal is less than corase grind processing；
G, interior apply mechanically to separate to be arranged in order every tool be put under grinder in the V-groove of nog plate, enter with ball mill
Row sphere grinds, it is ensured that surface roughness.
In step e, resin wheel is made up of the raw material of following percentage by weight:
Wherein, carborundum granularity is 5 μm.
The mechanics properties testing data of the present invention are as follows:
Tensile strength sigma b (MPa): >=45
Yield strength σ s (MPa): >=58
Contraction percentage of area ψ (%): >=55
Notched bar impact strength α kv (J/cm2): >=35.
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 (7)
1. the preparation method of an air-conditioning bearing inner sleeve, it is characterised in that comprise the following steps:
A, teeming, in steel ingot, chemical component weight percentage ratio is: 0.60%≤C≤0.75%, 0.9%≤
Si≤1.4%, 0.5%≤Mn≤0.6%, 0.05%≤Mo≤0.06%, 0.005%≤P≤0.011%, 0.005%
≤ S≤0.01%, 1.4%≤Cr≤1.65%, 0.06%≤Ni≤0.11%, 0.08%≤Ti≤0.12%, surplus
For ferrum and inevitable impurity；
B, cast temperature control at 1100 DEG C～1200 DEG C, casting temperature air cooling to 400 DEG C～enter when 500 DEG C
Row water-cooled, carries out bonderizing after water-cooled, surface high-temp bonderizing: at 110-125 DEG C after outward appearance is checked and accepted
At a temperature of carry out, the free acidity of phosphate solution is 1: 3-4 in the ratio of total acidity, and the process time is
50-60 minute, within the temperature range of being then heated to 1100 DEG C 1200 DEG C, then workpiece is pulled out, afterwards
Alignment, correction size；
C, heat treatment
Inner sleeve after conducting forging processing is carried out surface Atmosphere controlling heat-treatment: Atmosphere controlling heat-treatment is at thermotropism
Reason stove is passed through mixed gas, nitrogen intake 125～145ml/min, ethanol intake 54～
70ml/min, propane intake is 24～43ml/min, and its furnace gas atmosphere composition weight portion scope control is at nitrogen
Gas content 45～55 parts, hydrogen content 25～28 parts, carbon dioxide content 10～12 parts；
D, machining shape: reduce allowance, prepare for mill processing；
E, corase grind Double End: use resin wheel to carry out grinding；
F, face machined flat: use resin wheel grinding, stock removal is less than corase grind processing；
G, interior apply mechanically to separate to be arranged in order every tool be put under grinder in the V-groove of nog plate, enter with ball mill
Row sphere grinds.
The preparation method of a kind of air-conditioning bearing inner sleeve, it is characterised in that steel ingot
Middle chemical component weight percentage ratio is: 0.65%≤C≤0.7%, 1.1%≤Si≤1.2%, 0.55%≤Mn≤
0.6%, 0.055%≤Mo≤0.06%, 0.005%≤P≤0.01%, 0.005%≤S≤0.009%, 1.4%≤Cr
≤ 1.6%, 0.06%≤Ni≤0.1%, 0.09%≤Ti≤0.11%, surplus is ferrum and inevitable impurity.
The preparation method of a kind of air-conditioning bearing inner sleeve, it is characterised in that step e
Middle resin wheel is made up of the raw material of following percentage by weight:
The preparation method of a kind of air-conditioning bearing inner sleeve, it is characterised in that step
In e, resin wheel is made up of the raw material of following percentage by weight:
5. according to the preparation method of air-conditioning bearing inner sleeve a kind of described in claim 3 or 4, it is characterised in that carbon
SiClx granularity is 5 μm.
The preparation method of a kind of air-conditioning bearing inner sleeve, it is characterised in that step
In f, the granularity of resin wheel is 50 degree.
The preparation method of a kind of air-conditioning bearing inner sleeve, it is characterised in that step d
In, machining order is: car large end face, car large end face inner diametric step groove, the inside and outside fillet of the big end of car, car
Small end inner diameter fillet and external diameter fillet, car small end end face, car small end outer surface, car endoporus, raceway in car,
The large and small oil duct of car, the large and small rib of car, car large and small rib fillet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610351697.6A CN105880948A (en) | 2016-05-24 | 2016-05-24 | Preparation method of linings for bearing of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610351697.6A CN105880948A (en) | 2016-05-24 | 2016-05-24 | Preparation method of linings for bearing of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105880948A true CN105880948A (en) | 2016-08-24 |
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ID=56717602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610351697.6A Pending CN105880948A (en) | 2016-05-24 | 2016-05-24 | Preparation method of linings for bearing of air conditioner |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106399761A (en) * | 2016-11-14 | 2017-02-15 | 安徽名杰净化科技有限公司 | Wind-erosion-resistant air-inlet grille board of purifier |
| CN106567007A (en) * | 2016-11-17 | 2017-04-19 | 马鞍山市银鼎机械制造有限公司 | Preparation method of wear resisting ball for magnetic material crushing |
| CN106636946A (en) * | 2016-11-17 | 2017-05-10 | 马鞍山市银鼎机械制造有限公司 | Preparation method of grinder of high-hardness ball grinding mill |
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| US20110048367A1 (en) * | 2009-09-02 | 2011-03-03 | International Engine Intellectual Property Company Llc | Crankcase and main bearing cap construction |
| US8234785B2 (en) * | 2006-09-15 | 2012-08-07 | Thyssenkrupp Technologies Ag | Method for producing a connecting rod |
| CN104295608A (en) * | 2014-05-30 | 2015-01-21 | 台州科锦轴承有限公司 | Joint bearing inner ring processing method |
| CN104440594A (en) * | 2014-10-29 | 2015-03-25 | 杨祝华 | Resin binder diamond grinding wheel |
| CN104439954A (en) * | 2014-11-17 | 2015-03-25 | 无锡市百顺机械厂 | Bearing machining technology |
| CN105543632A (en) * | 2015-12-28 | 2016-05-04 | 合肥中澜新材料科技有限公司 | Preparation method of high-strength roller bearing outer ring |
-
2016
- 2016-05-24 CN CN201610351697.6A patent/CN105880948A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8234785B2 (en) * | 2006-09-15 | 2012-08-07 | Thyssenkrupp Technologies Ag | Method for producing a connecting rod |
| US20110048367A1 (en) * | 2009-09-02 | 2011-03-03 | International Engine Intellectual Property Company Llc | Crankcase and main bearing cap construction |
| CN104295608A (en) * | 2014-05-30 | 2015-01-21 | 台州科锦轴承有限公司 | Joint bearing inner ring processing method |
| CN104440594A (en) * | 2014-10-29 | 2015-03-25 | 杨祝华 | Resin binder diamond grinding wheel |
| CN104439954A (en) * | 2014-11-17 | 2015-03-25 | 无锡市百顺机械厂 | Bearing machining technology |
| CN105543632A (en) * | 2015-12-28 | 2016-05-04 | 合肥中澜新材料科技有限公司 | Preparation method of high-strength roller bearing outer ring |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106399761A (en) * | 2016-11-14 | 2017-02-15 | 安徽名杰净化科技有限公司 | Wind-erosion-resistant air-inlet grille board of purifier |
| CN106567007A (en) * | 2016-11-17 | 2017-04-19 | 马鞍山市银鼎机械制造有限公司 | Preparation method of wear resisting ball for magnetic material crushing |
| CN106636946A (en) * | 2016-11-17 | 2017-05-10 | 马鞍山市银鼎机械制造有限公司 | Preparation method of grinder of high-hardness ball grinding mill |
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Application publication date: 20160824 |