CN108559913A - A kind of GCr15 Steel Pipe For Bearings and its preparation process - Google Patents
A kind of GCr15 Steel Pipe For Bearings and its preparation process Download PDFInfo
- Publication number
- CN108559913A CN108559913A CN201810466233.9A CN201810466233A CN108559913A CN 108559913 A CN108559913 A CN 108559913A CN 201810466233 A CN201810466233 A CN 201810466233A CN 108559913 A CN108559913 A CN 108559913A
- Authority
- CN
- China
- Prior art keywords
- pipe
- steel pipe
- bearings
- temperature
- gcr15 steel
- 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
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
-
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
- C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- 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
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/088—Iron or steel solutions containing organic acids
Abstract
The present invention relates to a kind of GCr15 Steel Pipe For Bearings and its preparation process, in the GCr15 Steel Pipe For Bearings, including following component：C：1.02% 1.12%, S：0.016% 0.028%, P：0.014% 0.025%, Mn：0.18% 0.23%, Cr：1.25% 1.65%, Mo：0.08% 0.12%, Ni：0.12% 0.3%, Cu：0.35% 0.5%, Si：0.17% 0.28%；The GCr15 Steel Pipe For Bearings preparation process includes the following steps：S1. pipe is cut off；S2. centering perforation；S3. extrusion forming；S4. it anneals；S5. stress relief annealing；S6. cleaning lubrication；S7. multi-pass cold-drawn；S8. period spheroidizing；S9. finishing inspection.The GCr15 Steel Pipe For Bearings that present invention process is produced have high fatigue strength and toughness, higher wear-resisting property and height and uniform hardness.
Description
Technical field
The present invention relates to bearing steel technical field of mechanical processing, specially a kind of GCr15 Steel Pipe For Bearings and its preparation process.
Background technology
GCr15 refers to a kind of high-carbon-chromium bearing steel that alloy content is less, is had after quenching plus lonneal higher
Hardness, uniform tissue, good wearability, high contact fatigue property.GCr15 Steel Pipe For Bearings are mainly for the manufacture of various
The inner and outer ring of rolling bearing.It will bear the stress alternations such as very big tensile stress, compression, shear stress and frictional force, it is necessary to
With high fatigue strength, elastic limit, yield strength and toughness, high wear-resisting property, high and uniform hardness, certain is anti-
Corrosive power.
In bearing parts, rotating part is generally used with being exposed in comparatively gentle corrosive environment, is made according to it
With requiring, antirust agent and lubricant cannot be used sometimes.Therefore, the organizer under existing bearing steel use state should be tempering horse
It is uniform-distribution with tiny carbide particle on family name's body matrix.Bearing failure most common form is contact fatigue failure, mainly
There are the occurrence and development of fatigue crack because local stress is generated.By studies have shown that the contact fatigue failure of bearing is same
Cleanliness factor in bearing steel is related with the inclusion content of D substances.An effect part for carbon is present in martensitic matrix to strengthen
Martensite；Another part forms sufficient amount of carbide to obtain required wear-resisting property, but excessively high carbon content can increase
Add being unevenly distributed for carbide, and easily generates net carbide and reduce its performance；Foot cannot be formed if carbon content is too low
Enough martensite, the amount for forming carbide is insufficient.If carbide can be uniformly distributed in tiny particle in base steel body tissue,
Not only steel belt roof bolt can be improved, but also the hardness of steel can be improved, and then improves the wearability and contact fatigue strength of steel.
Invention content
It is an object of the invention to overcome the prior art, a kind of GCr15 Steel Pipe For Bearings and its preparation process are provided,
The GCr15 Steel Pipe For Bearings that present invention process is produced have high fatigue strength and toughness, higher wear-resisting property and height and
Uniform hardness.
The purpose of the present invention is achieved through the following technical solutions：
A kind of GCr15 Steel Pipe For Bearings and its preparation process, C element content is 1.02%- in the GCr15 Steel Pipe For Bearings
1.12%, S constituent content are 0.016%-0.028%, and P element content is 0.014%-0.025%, and Mn constituent contents are
0.18%-0.23%, Cr constituent content are 1.25%-1.65%, and Mo constituent contents are 0.08%-0.12%, Ni constituent contents
For 0.12%-0.3%, Cu constituent contents are 0.35%-0.5%, and Si constituent contents are 0.17%-0.28%；The effect one of carbon
Part is present in martensitic matrix to strengthen martensite；It is required to obtain that another part forms sufficient amount of carbide
Wear-resisting property, but excessively high carbon content can increase being unevenly distributed for carbide, and easily generate net carbide and reduce its property
Energy；Enough martensite cannot be formed if carbon content is too low, the amount for forming carbide is insufficient, and therefore, the control of C element content exists
1.02%-1.12% can reach the balance of the two.
Further, Mo, Ni and Mn element total content are 0.42%-0.62% in the GCr15 Steel Pipe For Bearings；Mo、
Ni and Mn elements can effectively enhance the toughness of GCr15 Steel Pipe For Bearings, but content excessively also results in the bright of Steel Pipe For Bearing hardness
It is aobvious to decline, thus total content maintain 0.42%-0.62% can achieve the effect that it is best.
A kind of GCr15 Steel Pipe For Bearings and its preparation process, include the following steps：
S1 pipes are cut off：Rodlike steel are cut into the cylindrical blank of required length using laser oxygen cutter；
S2 centering perforation：The cylindrical blank obtained by S1 steps needs to feel relieved on the end face perforated, and the cylindrical blank is slowly added
Heat is heated rapidly to 1060-1150 DEG C, and perforate on punch close to after 900 DEG C, perforation pipe is obtained, by rapid
Heating, makes temperature quickly through 900 DEG C, avoids σ phase amount of precipitations excessive, efficiently reduce the generation probability of pipe crackle；
S3 extrusion formings：Perforation pipe obtained by S2 steps is squeezed in extrusion forming in the die cavity of the hydraulic press
Pipe, using the punch-pin on hydraulic press to the pipe extrusion forming；
S4 anneals：Extruded tube obtained by S3 steps is placed in heating furnace and is heated to 805-820 DEG C and keeps the temperature, and with 20-35
DEG C/speed of h cools to 600-650 DEG C with the furnace, it comes out of the stove and is air-cooled to room temperature, obtain annealing pipe, GCr15 Steel Pipe For Bearings are led due to it
It is hot poor, structural stress and thermal stress are easy tod produce, heating speed is unsuitable too fast, otherwise easy tos produce crackle, forms Bird's Nest
Breach；
S5 stress relief annealings：Annealing pipe obtained by step S4 is placed in the heating furnace and is heated to 520-560 DEG C, is kept the temperature,
It cools to room temperature with the furnace, obtains heat treatment pipe, 520-560 DEG C of the temperature of the stress relief annealing of use, than general 700-750 DEG C
Temperature is low, can eliminate stress to greatest extent, while ensureing the intensity and hardness of material, and guarantee has preferable mechanicalness；
S6 cleaning lubrications：Will heat treatment pipe obtained by S5 steps cleaned, phosphatization and saponification process, remove at the heat
It manages the oxide layer on pipe and keeps its smooth, obtain waiting for tube drawing；
S7 multi-pass cold-drawns：It will wait for that tube drawing carries out multi-pass cold-drawn in roller mill obtained by S6 steps, obtain drawn tube；
S8 period spheroidizings：Drawn tube obtained by S7 is placed in the heating furnace, 790 DEG C is heated to for the first time and keeps the temperature
After 1h, cools to 710 DEG C with the furnace with the speed of 120 DEG C/h, keep the temperature 1h；790 DEG C are warming up to the speed of 240 DEG C/h for the second time,
1h is kept the temperature, 710 DEG C is cooled to the furnace with the speed of 120 DEG C/h, keeps the temperature 1h；Third time is warming up to 790 with the speed of 240 DEG C/h
DEG C, keep the temperature 1h, 710 DEG C cooled to the furnace with the speed of 120 DEG C/h, keep the temperature 1h and then with 30 DEG C/h be cooled to 650 DEG C it is left back
It comes out of the stove and is air-cooled to room temperature, obtain spheroidizing pipe, using periodic spheroidizing method, in the temperature of coexistence region, repeatedly
To drawn tube spheroidizing, cementite nodularization is accelerated, keeps spheroidizing effect more preferable；Meanwhile austenite is cold to pearlite
But speed, cooling velocity is faster, and transition temperature is lower, and the diffusion of carbon and iron atom is more difficult, shortens the ball of carbide
Change distance, fine pearlite is avoided to form coarse pearlite in heat preservation or cooling procedure；It is heated repeatedly in addition to further molten disconnected elder generation
Outside eutectoid cementite net, while also accelerating nodularization process, shortens time about 6h；
S9 finishing inspections：Spheroidizing pipe obtained by S8 steps is modified and detected, GCr15 Steel Pipe For Bearings are obtained.
Further, step S2 slow heating rate is 120-150 DEG C/h, the rapid rate of heat addition is 230-260 DEG C/
h。
Further, the step S4 soaking times are 1-3h；The step S5 soaking times are 50min.
Further, the step S6 cleanings cleaning agent used includes according to mass ratio：Dimethyl siloxane：2%-3%,
Triethanolamine：0.6%-0.7%, silica：14%-16%, methylcellulose：0.1%-0.3%, stearic acid：0.5%-
0.8%, propylene glycol monomethyl ether：5%-7%, remaining is water.
Beneficial effects of the present invention are：(1), the present invention prevents excessively high phosphorus content from causing by the content of control C element
Distribution of carbides is uneven, enhances martensite, while controlling the content of Mo, Ni and Mn element, strengthens the tough of Steel Pipe For Bearing
Property, along with the control to temperature and time in heat treatment process, further enhance the toughness of GCr15 Steel Pipe For Bearings with it is hard
Degree.
(2), the present invention, repeatedly to drawn tube spheroidizing, accelerates cementite nodularization by using period spheroidizing,
Keep spheroidizing effect more preferable；Meanwhile austenite is very fast to pearlite cooling velocity, cooling velocity is faster, and transition temperature is got over
Low, the diffusion of carbon and iron atom is more difficult, shortens the nodularization distance of carbide, avoids fine pearlite in heat preservation or cooling procedure
It is middle to form coarse pearlite；It heats repeatedly other than further molten disconnected proeutectoid cementite network, while also accelerating nodularization process, contracting
Short time about 6h.
Specific implementation mode
Technical scheme of the present invention is described in further detail with reference to specific embodiment, but protection scope of the present invention is not
It is confined to as described below.
Embodiment 1
A kind of GCr15 Steel Pipe For Bearings and its preparation process, C element content is 1.02%, S in the GCr15 Steel Pipe For Bearings
Constituent content is 0.016%, and it be 0.18%, Cr constituent contents is 1.25%, Mo that P element content, which is 0.014%, Mn constituent contents,
It is 0.12%, Cu constituent contents be 0.35%, Si constituent contents is 0.17% that constituent content, which is 0.08%, Ni constituent contents,.
Specifically, Mo, Ni and Mn element total content are 0.42% in the GCr15 Steel Pipe For Bearings.
A kind of GCr15 Steel Pipe For Bearings and its preparation process, include the following steps：
S1 pipes are cut off：Rodlike steel are cut into the cylindrical blank of required length using laser oxygen cutter；
S2 centering perforation：The cylindrical blank obtained by S1 steps needs to feel relieved on the end face perforated, and the cylindrical blank is slowly added
Heat is heated rapidly to 1060 DEG C, and perforate on punch close to after 900 DEG C, obtains perforation pipe；
S3 extrusion formings：Perforation pipe obtained by S2 steps is squeezed in extrusion forming in the die cavity of the hydraulic press
Pipe；
S4 anneals：Extruded tube obtained by S3 steps is placed in heating furnace and is heated to 805 DEG C and keeps the temperature, and with the speed of 20 DEG C/h
Degree cools to 600 DEG C with the furnace, comes out of the stove and is air-cooled to room temperature, obtains annealing pipe；
S5 stress relief annealings：Annealing pipe obtained by step S4 is placed in the heating furnace and is heated to 520 DEG C, heat preservation, with stove
It is cooled to room temperature, obtains heat treatment pipe；
S6 cleaning lubrications：Will heat treatment pipe obtained by S5 steps cleaned, phosphatization and saponification process, remove at the heat
It manages the oxide layer on pipe and keeps its smooth, obtain waiting for tube drawing；
S7 multi-pass cold-drawns：It will wait for that tube drawing carries out multi-pass cold-drawn in roller mill obtained by S6 steps, obtain drawn tube；
S8 period spheroidizings：Drawn tube obtained by S7 is placed in the heating furnace, 790 DEG C is heated to for the first time and keeps the temperature
After 1h, cools to 710 DEG C with the furnace with the speed of 120 DEG C/h, keep the temperature 1h；790 DEG C are warming up to the speed of 240 DEG C/h for the second time,
1h is kept the temperature, 710 DEG C is cooled to the furnace with the speed of 120 DEG C/h, keeps the temperature 1h；Third time is warming up to 790 with the speed of 240 DEG C/h
DEG C, keep the temperature 1h, 710 DEG C cooled to the furnace with the speed of 120 DEG C/h, keep the temperature 1h and then with 30 DEG C/h be cooled to 650 DEG C it is left back
It comes out of the stove and is air-cooled to room temperature, obtain spheroidizing pipe；
S9 finishing inspections：Spheroidizing pipe obtained by S8 steps is modified and detected, GCr15 Steel Pipe For Bearings are obtained.
Specifically, the step S2 slow heatings rate is 120-150 DEG C/h, and the rapid rate of heat addition is 230 DEG C/h.
Specifically, the step S4 soaking times are 1-3h；The step S5 soaking times are 50min.
Specifically, the step S6 cleanings cleaning agent used includes according to mass ratio：Dimethyl siloxane：2%, three ethyl alcohol
Amine：0.6%, silica：14%, methylcellulose：0.1%, stearic acid：0.5%, propylene glycol monomethyl ether：5%, remaining is water.
The Steel Pipe For Bearing that the present embodiment obtains obtains following data after tested：The hardness of Steel Pipe For Bearing is 61-63HRC, net
Shape carbide rank is 0.5-1.5 grades, and non-metallic inclusion rank is 0.5-1, impact strength 52.6KJ/m2。
Embodiment 2
A kind of GCr15 Steel Pipe For Bearings and its preparation process, C element content is 1.08%, S in the GCr15 Steel Pipe For Bearings
Constituent content is 0.022%, and it be 0.21%, Cr constituent contents is 1.42%, Mo that P element content, which is 0.019%, Mn constituent contents,
It is 0.18%, Cu constituent contents be 0.4%, Si constituent contents is 0.23% that constituent content, which is 0.09%, Ni constituent contents,.
Specifically, Mo, Ni and Mn element total content are 0.51% in the GCr15 Steel Pipe For Bearings.
A kind of GCr15 Steel Pipe For Bearings and its preparation process, include the following steps：
S1 pipes are cut off：Rodlike steel are cut into the cylindrical blank of required length using laser oxygen cutter；
S2 centering perforation：The cylindrical blank obtained by S1 steps needs to feel relieved on the end face perforated, and the cylindrical blank is slowly added
Heat is heated rapidly to 1120 DEG C, and perforate on punch close to after 900 DEG C, obtains perforation pipe；
S3 extrusion formings：Perforation pipe obtained by S2 steps is squeezed in extrusion forming in the die cavity of the hydraulic press
Pipe；
S4 anneals：Extruded tube obtained by S3 steps is placed in heating furnace and is heated to 815 DEG C and keeps the temperature, and with the speed of 30 DEG C/h
Degree cools to 625 DEG C with the furnace, comes out of the stove and is air-cooled to room temperature, obtains annealing pipe；
S5 stress relief annealings：Annealing pipe obtained by step S4 is placed in the heating furnace and is heated to 540 DEG C, heat preservation, with stove
It is cooled to room temperature, obtains heat treatment pipe；
S6 cleaning lubrications：Will heat treatment pipe obtained by S5 steps cleaned, phosphatization and saponification process, remove at the heat
It manages the oxide layer on pipe and keeps its smooth, obtain waiting for tube drawing；
S7 multi-pass cold-drawns：It will wait for that tube drawing carries out multi-pass cold-drawn in roller mill obtained by S6 steps, obtain drawn tube；
S8 period spheroidizings：Drawn tube obtained by S7 is placed in the heating furnace, 790 DEG C is heated to for the first time and keeps the temperature
After 1h, cools to 710 DEG C with the furnace with the speed of 120 DEG C/h, keep the temperature 1h；790 DEG C are warming up to the speed of 240 DEG C/h for the second time,
1h is kept the temperature, 710 DEG C is cooled to the furnace with the speed of 120 DEG C/h, keeps the temperature 1h；Third time is warming up to 790 with the speed of 240 DEG C/h
DEG C, keep the temperature 1h, 710 DEG C cooled to the furnace with the speed of 120 DEG C/h, keep the temperature 1h and then with 30 DEG C/h be cooled to 650 DEG C it is left back
It comes out of the stove and is air-cooled to room temperature, obtain spheroidizing pipe；
S9 finishing inspections：Spheroidizing pipe obtained by S8 steps is modified and detected, GCr15 Steel Pipe For Bearings are obtained.
Specifically, the step S2 slow heatings rate is 135 DEG C/h, and the rapid rate of heat addition is 240 DEG C/h.
Specifically, the step S4 soaking times are 2h；The step S5 soaking times are 50min.
Specifically, the step S6 cleanings cleaning agent used includes according to mass ratio：Dimethyl siloxane：1.5%, three second
Hydramine：0.65%, silica：15%, methylcellulose：0.2%, stearic acid：0.6%, propylene glycol monomethyl ether：6%, remaining is
Water.
The Steel Pipe For Bearing that the present embodiment obtains obtains following data after tested：The hardness of Steel Pipe For Bearing is 62-65HRC, net
Shape carbide rank is 1.5-2 grades, and non-metallic inclusion rank is 1-2, impact strength 63.4KJ/m2。
Embodiment 3
A kind of GCr15 Steel Pipe For Bearings and its preparation process, C element content is 1.02%- in the GCr15 Steel Pipe For Bearings
1.12%, S constituent content are 0.028%, and P element content is that 0.025%, Mn constituent contents are that 0.23%, Cr constituent contents are
It is 0.3%, Cu constituent contents is that 0.5%, Si constituent contents are that 1.65%, Mo constituent content, which are 0.12%, Ni constituent contents,
0.28%.
Specifically, Mo, Ni and Mn element total content are 0.62% in the GCr15 Steel Pipe For Bearings.
A kind of GCr15 Steel Pipe For Bearings and its preparation process, include the following steps：
S1 pipes are cut off：Rodlike steel are cut into the cylindrical blank of required length using laser oxygen cutter；
S2 centering perforation：The cylindrical blank obtained by S1 steps needs to feel relieved on the end face perforated, and the cylindrical blank is slowly added
Heat is heated rapidly to 1150 DEG C, and perforate on punch close to after 900 DEG C, obtains perforation pipe；
S3 extrusion formings：Perforation pipe obtained by S2 steps is squeezed in extrusion forming in the die cavity of the hydraulic press
Pipe；
S4 anneals：Extruded tube obtained by S3 steps is placed in heating furnace and is heated to 820 DEG C and keeps the temperature, and with the speed of 35 DEG C/h
Degree cools to 650 DEG C with the furnace, comes out of the stove and is air-cooled to room temperature, obtains annealing pipe；
S5 stress relief annealings：Annealing pipe obtained by step S4 is placed in the heating furnace and is heated to 560 DEG C, heat preservation, with stove
It is cooled to room temperature, obtains heat treatment pipe；
S6 cleaning lubrications：Will heat treatment pipe obtained by S5 steps cleaned, phosphatization and saponification process, remove at the heat
It manages the oxide layer on pipe and keeps its smooth, obtain waiting for tube drawing；
S7 multi-pass cold-drawns：It will wait for that tube drawing carries out multi-pass cold-drawn in roller mill obtained by S6 steps, obtain drawn tube；
S8 period spheroidizings：Drawn tube obtained by S7 is placed in the heating furnace, 790 DEG C is heated to for the first time and keeps the temperature
After 1h, cools to 710 DEG C with the furnace with the speed of 120 DEG C/h, keep the temperature 1h；790 DEG C are warming up to the speed of 240 DEG C/h for the second time,
1h is kept the temperature, 710 DEG C is cooled to the furnace with the speed of 120 DEG C/h, keeps the temperature 1h；Third time is warming up to 790 with the speed of 240 DEG C/h
DEG C, keep the temperature 1h, 710 DEG C cooled to the furnace with the speed of 120 DEG C/h, keep the temperature 1h and then with 30 DEG C/h be cooled to 650 DEG C it is left back
It comes out of the stove and is air-cooled to room temperature, obtain spheroidizing pipe；
S9 finishing inspections：Spheroidizing pipe obtained by S8 steps is modified and detected, GCr15 Steel Pipe For Bearings are obtained.
Specifically, the step S2 slow heatings rate is 150 DEG C/h, and the rapid rate of heat addition is 260 DEG C/h.
Specifically, the step S4 soaking times are 3h；The step S5 soaking times are 50min.
Specifically, the step S6 cleanings cleaning agent used includes according to mass ratio：Dimethyl siloxane：3%, three ethyl alcohol
Amine：0.7%, silica：16%, methylcellulose：0.3%, stearic acid：0.8%, propylene glycol monomethyl ether：7%, remaining is water.
The Steel Pipe For Bearing that the present embodiment obtains obtains following data after tested：The hardness of Steel Pipe For Bearing is 64-66HRC, net
Shape carbide rank is 1.5-2.5 grades, and non-metallic inclusion rank is 1.5-2, impact strength 59.6KJ/m2。
In conclusion the high-carbon-chromium bearing steel pipe hardness prepared by present invention process, net carbide rank, nonmetallic
Inclusion behavior and impact strength all meet national standard, and more preferable compared with traditional handicraft.
Wherein, hardness, net carbide rank non-metallic inclusion rank assay method be：GB/T 18254-2002；
Impact strength assay method is：GB/T1943-2007.
The above is only a preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form is not to be taken as excluding other embodiments, and can be used for other combinations, modifications, and environments, and can be at this
In the text contemplated scope, modifications can be made through the above teachings or related fields of technology or knowledge.And those skilled in the art institute into
Capable modifications and changes do not depart from the spirit and scope of the present invention, then all should be in the protection domain of appended claims of the present invention
It is interior.
Claims (6)
1. a kind of GCr15 Steel Pipe For Bearings and its preparation process, which is characterized in that C element content is in the GCr15 Steel Pipe For Bearings
1.02%-1.12%, S constituent content are 0.016%-0.028%, and P element content is 0.014%-0.025%, and Mn elements contain
Amount is 0.18%-0.23%, and Cr constituent contents are 1.25%-1.65%, and Mo constituent contents are 0.08%-0.12%, Ni elements
Content is 0.12%-0.3%, and Cu constituent contents are 0.35%-0.5%, and Si constituent contents are 0.17%-0.28%.
2. a kind of GCr15 Steel Pipe For Bearings according to claim 1 and its preparation process, which is characterized in that the GCr15 axis
It is 0.42%-0.62% to hold Mo, Ni and Mn element total content in steel pipe.
3. a kind of GCr15 Steel Pipe For Bearings described in claim 1 and its preparation process, which is characterized in that include the following steps：
S1 pipes are cut off：Rodlike steel are cut into the cylindrical blank of required length using laser oxygen cutter；
S2 centering perforation：The cylindrical blank obtained by S1 steps needs to feel relieved on the end face perforated, and cylindrical blank slow heating is connect
After nearly 900 DEG C, it is heated rapidly to 1060-1150 DEG C, and perforate on punch, obtains perforation pipe；
S3 extrusion formings：Perforation pipe obtained by S2 steps is obtained into extruded tube in extrusion forming in the die cavity of the hydraulic press；
S4 anneals：Extruded tube obtained by S3 steps is placed in heating furnace and is heated to 805-820 DEG C and keeps the temperature, and with 20-35 DEG C/h
Speed cool to 600-650 DEG C with the furnace, come out of the stove and be air-cooled to room temperature, obtain annealing pipe；
S5 stress relief annealings：Annealing pipe obtained by step S4 is placed in the heating furnace and is heated to 520-560 DEG C, heat preservation, with stove
It is cooled to room temperature, obtains heat treatment pipe；
S6 cleaning lubrications：Will heat treatment pipe obtained by S5 steps cleaned, phosphatization and saponification process, remove the heat treatment
Oxide layer on pipe simultaneously keeps its smooth, obtains waiting for tube drawing；
S7 multi-pass cold-drawns：It will wait for that tube drawing carries out multi-pass cold-drawn in roller mill obtained by S6 steps, obtain drawn tube；
S8 period spheroidizings：Drawn tube obtained by S7 is placed in the heating furnace, 790 DEG C is heated to for the first time and keeps the temperature 1h
Afterwards, 710 DEG C are cooled to the furnace with the speed of 120 DEG C/h, keeps the temperature 1h；790 DEG C are warming up to the speed of 240 DEG C/h for the second time, is protected
Warm 1h cools to 710 DEG C with the furnace with the speed of 120 DEG C/h, keeps the temperature 1h；Third time is warming up to 790 DEG C with the speed of 240 DEG C/h,
Keep the temperature 1h, 710 DEG C cooled to the furnace with the speed of 120 DEG C/h, keep the temperature 1h and then with 30 DEG C/h be cooled to 650 DEG C it is left back go out
Stove is air-cooled to room temperature, obtains spheroidizing pipe；
S9 finishing inspections：Spheroidizing pipe obtained by S8 steps is modified and detected, GCr15 Steel Pipe For Bearings are obtained.
4. a kind of GCr15 Steel Pipe For Bearings according to claim 3 and its preparation process, which is characterized in that the step S2
Slow heating rate is 120-150 DEG C/h, and the rapid rate of heat addition is 230-260 DEG C/h.
5. a kind of GCr15 Steel Pipe For Bearings according to claim 1 and its preparation process, which is characterized in that the step S4
Soaking time is 1-3h；The step S5 soaking times are 50min.
6. a kind of GCr15 Steel Pipe For Bearings according to claim 1 and its preparation process, which is characterized in that the step S6
Cleaning agent includes according to mass ratio used in cleaning：Dimethyl siloxane：2%-3%, triethanolamine：0.6%-0.7%, titanium dioxide
Silicon：14%-16%, methylcellulose：0.1%-0.3%, stearic acid：0.5%-0.8%, propylene glycol monomethyl ether：5%-7%,
Yu Weishui.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810466233.9A CN108559913A (en) | 2018-05-16 | 2018-05-16 | A kind of GCr15 Steel Pipe For Bearings and its preparation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810466233.9A CN108559913A (en) | 2018-05-16 | 2018-05-16 | A kind of GCr15 Steel Pipe For Bearings and its preparation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108559913A true CN108559913A (en) | 2018-09-21 |
Family
ID=63538993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810466233.9A Pending CN108559913A (en) | 2018-05-16 | 2018-05-16 | A kind of GCr15 Steel Pipe For Bearings and its preparation process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108559913A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110355207A (en) * | 2019-07-14 | 2019-10-22 | 浙江健力股份有限公司 | A kind of base hot rolling Steel Pipe For Bearing and its preparation process |
| CN112317540A (en) * | 2020-08-27 | 2021-02-05 | 陈恩义 | Method for processing hollow steel pipe of drill rod |
| CN112359362A (en) * | 2020-10-27 | 2021-02-12 | 中天钢铁集团有限公司 | Acid-washing, phosphorizing and saponifying method for bearing steel |
| CN112719797A (en) * | 2020-12-19 | 2021-04-30 | 常熟市和新不锈钢管制造有限公司 | Production processing equipment and production process of stainless steel pipe |
| CN113083937A (en) * | 2021-03-25 | 2021-07-09 | 江西红睿马钢管股份有限公司 | Production process of bearing steel pipe for cold-rolled expanded bearing |
| CN113862561A (en) * | 2021-09-08 | 2021-12-31 | 钢铁研究总院 | Long-life high-carbon bearing steel pipe and preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11335773A (en) * | 1998-05-22 | 1999-12-07 | Nippon Koshuha Steel Co Ltd | Bearing steel excellent in cold workability |
| EP1048744A1 (en) * | 1998-11-10 | 2000-11-02 | Kawasaki Steel Corporation | Bearing steel excellent in rolling fatigue life |
| JP2001335886A (en) * | 2000-05-26 | 2001-12-04 | Sumitomo Metal Ind Ltd | Bearing steel improved in turning performance |
| CN102433502A (en) * | 2011-12-23 | 2012-05-02 | 中冶南方(武汉)威仕工业炉有限公司 | Spheroidized annealing technology for GCr15 bearing steel |
| CN102626723A (en) * | 2012-04-17 | 2012-08-08 | 常熟市旋力轴承钢管有限公司 | Method for manufacturing steel pipe for bearing ring |
| CN105899703A (en) * | 2014-01-10 | 2016-08-24 | 新日铁住金株式会社 | Bearing component, steel for bearing component, and production method for same |
-
2018
- 2018-05-16 CN CN201810466233.9A patent/CN108559913A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11335773A (en) * | 1998-05-22 | 1999-12-07 | Nippon Koshuha Steel Co Ltd | Bearing steel excellent in cold workability |
| EP1048744A1 (en) * | 1998-11-10 | 2000-11-02 | Kawasaki Steel Corporation | Bearing steel excellent in rolling fatigue life |
| JP2001335886A (en) * | 2000-05-26 | 2001-12-04 | Sumitomo Metal Ind Ltd | Bearing steel improved in turning performance |
| CN102433502A (en) * | 2011-12-23 | 2012-05-02 | 中冶南方(武汉)威仕工业炉有限公司 | Spheroidized annealing technology for GCr15 bearing steel |
| CN102626723A (en) * | 2012-04-17 | 2012-08-08 | 常熟市旋力轴承钢管有限公司 | Method for manufacturing steel pipe for bearing ring |
| CN105899703A (en) * | 2014-01-10 | 2016-08-24 | 新日铁住金株式会社 | Bearing component, steel for bearing component, and production method for same |
| CN105899704A (en) * | 2014-01-10 | 2016-08-24 | 新日铁住金株式会社 | Bearing component |
Non-Patent Citations (2)
| Title |
|---|
| 宋仁伯 编著: "《轧制工艺学》", 30 April 2014, 冶金工业出版社 * |
| 杨洪波 等: "周期球化退火对GCr15轴承钢组织及力学性能的影响", 《金属热处理》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110355207A (en) * | 2019-07-14 | 2019-10-22 | 浙江健力股份有限公司 | A kind of base hot rolling Steel Pipe For Bearing and its preparation process |
| CN112317540A (en) * | 2020-08-27 | 2021-02-05 | 陈恩义 | Method for processing hollow steel pipe of drill rod |
| CN112359362A (en) * | 2020-10-27 | 2021-02-12 | 中天钢铁集团有限公司 | Acid-washing, phosphorizing and saponifying method for bearing steel |
| CN112359362B (en) * | 2020-10-27 | 2023-03-28 | 中天钢铁集团有限公司 | Acid-washing, phosphorizing and saponifying method for bearing steel |
| CN112719797A (en) * | 2020-12-19 | 2021-04-30 | 常熟市和新不锈钢管制造有限公司 | Production processing equipment and production process of stainless steel pipe |
| CN112719797B (en) * | 2020-12-19 | 2023-01-17 | 常熟市和新不锈钢管制造有限公司 | Production processing equipment and production process of stainless steel pipe |
| CN113083937A (en) * | 2021-03-25 | 2021-07-09 | 江西红睿马钢管股份有限公司 | Production process of bearing steel pipe for cold-rolled expanded bearing |
| CN113083937B (en) * | 2021-03-25 | 2023-03-24 | 江西红睿马钢管股份有限公司 | Production process of bearing steel pipe for cold-rolled expanded bearing |
| CN113862561A (en) * | 2021-09-08 | 2021-12-31 | 钢铁研究总院 | Long-life high-carbon bearing steel pipe and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108559913A (en) | A kind of GCr15 Steel Pipe For Bearings and its preparation process | |
| RU2724767C2 (en) | Method of manufacturing part sheet of martensitic stainless steel | |
| TWI317760B (en) | ||
| JP4632931B2 (en) | Induction hardening steel excellent in cold workability and its manufacturing method | |
| WO2017120987A1 (en) | Steel material for manufacturing bearing, method for performing heat treatment thereto and formed part | |
| CN102626723A (en) | Method for manufacturing steel pipe for bearing ring | |
| CN108486468A (en) | A kind of high-carbon low-alloy bearing steel ring and its heat-treatment technology method | |
| JP3971571B2 (en) | Steel wire for high strength spring | |
| CN105886717A (en) | Normalizing method for forging waste heat of steel | |
| JPH07190072A (en) | Method for thermally treating rolling bearing | |
| JP5754077B2 (en) | Manufacturing method of bearing steel excellent in rolling fatigue characteristics and bearing steel | |
| JP2004100016A (en) | Rolled wire rod for bearing and drawn wire rod | |
| JPH11309630A (en) | Manufacture of part made of steel material | |
| JP4392376B2 (en) | Method for producing composite roll for hot rolling | |
| JP2006342368A (en) | Heat treatment method for steel member | |
| JP5768734B2 (en) | Rolled steel for cold forging and nitriding | |
| CN106133174A (en) | The high strength steel of excellent in fatigue characteristics | |
| CN108430661A (en) | Hot rolling roller and its manufacturing method | |
| KR101169654B1 (en) | Forged steel ball having surface of martensite and inner core of bainite for grinding mill | |
| JP2007270345A (en) | Method for producing member for transport equipment | |
| JP4963918B2 (en) | Method for annealing low carbon steel containing Cr | |
| JP5463675B2 (en) | Bearing steel and manufacturing method thereof | |
| JP2003129176A (en) | Steel wire or rod superior in wire drawability capable of omitting heat treatment prior to wire drawing, and bearing parts | |
| JP2010043331A (en) | Method for manufacturing seamless steel pipe for high-strength carburized part | |
| CN110029272A (en) | The tissue modulation method and nanometer bainite bearing steel of high tenacity bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180921 |
|
| RJ01 | Rejection of invention patent application after publication |