A kind of petroleum machinery bearing
Technical field
The present invention relates to a kind of petroleum machinery bearing, belongs to technical field of bearings.
Background technology
Ball bearing is one kind of rolling bearing, and spherical alloy steel ball is arranged on the centre of interior steel ring and outer rim, with
Roll mode come reduce the frictional force in power transmission process and improve machine power transmission efficiency.Ball bearing can not bear
Larger heavy load, in light indusqtry machinery more typically.Existing ball bearing in anti-wear performance decay resistance intensity all
There is certain defect, service life is not long.
The content of the invention
A kind of petroleum machinery bearing, it is characterised in that including:Outer shroud, inner ring, ball and retainer, outer shroud are same with inner ring
Axle connect setting, multiple balls are evenly distributed between the outer shroud and the inner ring, solid between the outer shroud and the inner ring
The retainer of fixed restricted ball movement, outer ring inner surface has magnesium alloy overlay cladding, and interior ring outer surface has aluminium alloy built-up welding
Layer,
Outer shroud and inner ring material of main part select copper alloy
Copper alloy chemical composition is(Percentage by weight):Cr:8-9 ﹪, Si:5-6 ﹪, Ni:4-5 ﹪, Al:1-2 ﹪, W:
0.7-0.8 ﹪, Bi 0.5-0.6 ﹪, Zn:0.4-0.5 ﹪, Ca:0.2-0.3 ﹪, Cd:0.08-0.09 ﹪, Zn:0.05-
0.06 ﹪, Nb:0.04-0.05 ﹪, Ag:0.02-0.03 ﹪, La:0.01-0.02 ﹪, balance of Cu and inevitably it is miscellaneous
Matter;
Manufacture the outer shroud and inner ring is comprised the following steps:According to above-mentioned copper alloy chemical composition dispensing, first fine copper is added
Enter in smelting furnace, at 1300 DEG C, after after fine copper fusing, copper melt temperature is raised to 1320 DEG C and adds conjunction in the middle of chromium-copper Control for Kiln Temperature
Gold, after by furnace temperature be increased to 1340 DEG C addition copper silicon intermediate alloys;Furnace temperature is increased to 1360 DEG C of addition nickel-copper intermediate alloys afterwards;
Furnace temperature is increased to 1380 DEG C afterwards and adds other alloying elements, rear furnace temperature is increased to 1400 DEG C, add refining cleanser, refining is net
Agent addition is the 0.9% of furnace charge amount, is stirred 50 minutes, stands 100 minutes, treats that slag is separated with molten metal, is skimmed, and is added afterwards
Coverture, the total addition of coverture is the 0.6% of furnace charge amount, is skimmed again after standing 40 minutes, afterwards respectively to outer shroud and interior
Ring is poured into a mould;Pouring temperature is 1300 DEG C;The outer shroud and inner ring blank for obtaining are heat-treated:First by outer shroud and interior ring billet
Material carries out being heated to 700 DEG C, and 100 DEG C/h of heating rate is incubated 3 hours, and Quenching Treatment, hardening media are carried out afterwards
It is water, outer shroud and inner ring blank is heated to 500 DEG C from room temperature after quenching, 100 DEG C/h of heating rate is incubated 4 hours, after
Be cooled to 350 DEG C, 60 DEG C/h of rate of temperature fall is incubated 2 hours, after be cooled to 250 DEG C again, 70 DEG C/h of rate of temperature fall,
Insulation 5 hours, after be air cooled to room temperature,
Inner ring and outer rings blank is warming up to 650 DEG C, 150 DEG C/h of heating rate is incubated 1 hour, and water-cooled is quenched afterwards
Fire, again heat base substrate to 500 DEG C be incubated 3 hours, come out of the stove and be air cooled to room temperature;Base substrate is put into subzero treatment 5 minutes in liquid nitrogen,
Room temperature is gone back up in air;
External ring inner surface carries out built-up welding after subzero treatment, and bead-welding technology is:200 DEG C of preheatings;During built-up welding, electric current is 62A,
Voltage is 12V, and built-up welding speed is 13mm/s, and argon flow amount is 13L/min, and overlay cladding thickness is 2.5mm;, delay after the completion of built-up welding
Slow cool down;Overlay cladding is constituted:Zn 20-30%, Si 6-7%, Cr 1-2%, Mo 0.8-0.9%, C 0.5-0.6%, Bi 0.2-
0.3%, Sn 0.03-0.04%, balance of Mg;
Internal ring outer surface carries out built-up welding, and bead-welding technology is:190 DEG C of preheatings, during built-up welding, electric current is 56A, and voltage is 12V,
Built-up welding speed is 9mm/s, and argon flow amount is 9L/min, and overlay cladding thickness is 3mm;, Slow cooling after the completion of built-up welding;Overlay cladding group
Turn into:Sn 20-25%, Zn 3-4%, Cr 2-3%, Si 1-2%, V 0.5-0.6%, C 0.4-0.5%, Ti 0.07-
0.08%, balance of Al;
The method and step for manufacturing the ball is:
Carry out melting according to the elemental constituent of ball material of main part, after cast, obtain blank, ball material of main part by with
Lower element composition:C 0.1-0.2%, Si 2-3%, Ni 5-6%, Cu 1-2%, Mo 0.8-0.9%, Sn 0.5-0.6%, Ti
0.4-0.5%, Zn 0.1-0.2%, W 0.08-0.09%, Mn 0.04-0.05%, Ag 0.03-0.04%, Pr 0.01-0.02%,
Balance of Fe and inevitable impurity;
Blank is molded through pier is subcooled, filing, buffing, heat treatment, hard grind, polishing, lappingout step obtains ball main body, institute
Stating heat treatment step is, ball after buffing is warming up into 770 DEG C, and 80 DEG C/h of heating rate is incubated 5 hours, and water-cooled is quenched afterwards
Fire, heats ball and is incubated 4 hours at 600 DEG C again, comes out of the stove and is air cooled to room temperature;
The ball main body that lappingout is obtained carries out surface coating, and coating composition is:Aluminium nitride 40-50 parts, titanium nitride 30-40
Part, coating layer thickness 20-30 microns, obtain final ball.
A kind of described petroleum machinery bearing, copper alloy chemical composition is(Percentage by weight):Cr:8 ﹪, Si:5 ﹪, Ni:
4 ﹪, Al:1 ﹪, W:0.7 ﹪, Bi 0.5 ﹪, Zn:0.4 ﹪, Ca:0.2 ﹪, Cd:0.08 ﹪, Zn:0.05 ﹪, Nb:0.04 ﹪,
Ag:0.02 ﹪, La:0.01 ﹪, balance of Cu and inevitable impurity.
A kind of described petroleum machinery bearing, copper alloy chemical composition is(Percentage by weight):Cr:9 ﹪, Si:6 ﹪,
Ni:5 ﹪, Al:2 ﹪, W:0.8 ﹪, Bi 0.6 ﹪, Zn:0.5 ﹪, Ca:0.3 ﹪, Cd:0.09 ﹪, Zn:0.06 ﹪,
Nb:0.05 ﹪, Ag:0.03 ﹪, La:0.02 ﹪, balance of Cu and inevitable impurity.
A kind of described petroleum machinery bearing, copper alloy chemical composition is(Percentage by weight):Cr:8.5 ﹪, Si:
5.5 ﹪, Ni:4.5 ﹪, Al:1.5 ﹪, W:0.75 ﹪, Bi 0.55 ﹪, Zn:0.45 ﹪, Ca:0.25 ﹪, Cd:0.085 ﹪, Zn
:0.055 ﹪, Nb:0.045 ﹪, Ag:0.025 ﹪, La:0.015 ﹪, balance of Cu and inevitable impurity.
A kind of described petroleum machinery bearing, ball material of main part is made up of following element:C 0.1%, Si 2%, Ni 5%,
Cu 1%, Mo 0.8%, Sn 0.5%, Ti 0.4%, Zn 0.1%, W 0.08%, Mn 0.04%, Ag 0.03%, Pr 0.01%, it is remaining
Measure is Fe and inevitable impurity.
A kind of described petroleum machinery bearing, ball material of main part is made up of following element:C 0.2%, Si 3%, Ni 6%,
Cu 2%, Mo 0.9%, Sn 0.6%, Ti 0.5%, Zn 0.2%, W 0.09%, Mn 0.05%, Ag 0.04%, Pr 0.02%, it is remaining
Measure is Fe and inevitable impurity.
A kind of described petroleum machinery bearing, ball material of main part is made up of following element:C 0.15%, Si 2.5%, Ni
5.5%, Cu 1.5%, Mo 0.85%, Sn 0.55%, Ti 0.45%, Zn 0.15%, W 0.085%, Mn 0.045%, Ag
0.035%, Pr 0.015%, balance of Fe and inevitable impurity.
A kind of described petroleum machinery bearing, internal ring outer surface carries out built-up welding, and bead-welding technology is:190 DEG C of preheatings, built-up welding
When, electric current is 56A, and voltage is 12V, and built-up welding speed is 9mm/s, and argon flow amount is 9L/min, and overlay cladding thickness is 3mm;, built-up welding
After the completion of Slow cooling;Overlay cladding is constituted:Sn 20%, Zn 3%, Cr 2%, Si 1%, V 0.5%, C 0.4%, Ti
0.07%, balance of Al.
A kind of described petroleum machinery bearing, internal ring outer surface carries out built-up welding, and bead-welding technology is:190 DEG C of preheatings, built-up welding
When, electric current is 56A, and voltage is 12V, and built-up welding speed is 9mm/s, and argon flow amount is 9L/min, and overlay cladding thickness is 3mm;, built-up welding
After the completion of Slow cooling;Overlay cladding is constituted:Sn 25%, Zn 4%, Cr 3%, Si 2%, V 0.6%, C 0.5%, Ti
0.08%, balance of Al.
A kind of described petroleum machinery bearing, internal ring outer surface carries out built-up welding, and bead-welding technology is:190 DEG C of preheatings, built-up welding
When, electric current is 56A, and voltage is 12V, and built-up welding speed is 9mm/s, and argon flow amount is 9L/min, and overlay cladding thickness is 3mm;, built-up welding
After the completion of Slow cooling;Overlay cladding is constituted:Sn 23%, Zn 3.5%, Cr 2.5%, Si 1.5%, V 0.55%, C 0.45%,
Ti 0.075%, balance of Al.
A kind of manufacture method of petroleum machinery bearing, it is characterised in that including:Outer shroud, inner ring, ball and retainer, outward
Ring and the coaxially connected setting of inner ring, multiple balls are evenly distributed between the outer shroud and the inner ring, the outer shroud with it is described
The retainer of restricted ball movement is fixed between inner ring, outer ring inner surface has magnesium alloy overlay cladding, and interior ring outer surface has
Aluminium alloy overlay cladding,
Outer shroud and inner ring material of main part select copper alloy
Copper alloy chemical composition is(Percentage by weight):Cr:8-9 ﹪, Si:5-6 ﹪, Ni:4-5 ﹪, Al:1-2 ﹪, W:
0.7-0.8 ﹪, Bi 0.5-0.6 ﹪, Zn:0.4-0.5 ﹪, Ca:0.2-0.3 ﹪, Cd:0.08-0.09 ﹪, Zn:0.05-
0.06 ﹪, Nb:0.04-0.05 ﹪, Ag:0.02-0.03 ﹪, La:0.01-0.02 ﹪, balance of Cu and inevitably it is miscellaneous
Matter;
Manufacture the outer shroud and inner ring is comprised the following steps:According to above-mentioned copper alloy chemical composition dispensing, first fine copper is added
Enter in smelting furnace, at 1300 DEG C, after after fine copper fusing, copper melt temperature is raised to 1320 DEG C and adds conjunction in the middle of chromium-copper Control for Kiln Temperature
Gold, after by furnace temperature be increased to 1340 DEG C addition copper silicon intermediate alloys;Furnace temperature is increased to 1360 DEG C of addition nickel-copper intermediate alloys afterwards;
Furnace temperature is increased to 1380 DEG C afterwards and adds other alloying elements, rear furnace temperature is increased to 1400 DEG C, add refining cleanser, refining is net
Agent addition is the 0.9% of furnace charge amount, is stirred 50 minutes, stands 100 minutes, treats that slag is separated with molten metal, is skimmed, and is added afterwards
Coverture, the total addition of coverture is the 0.6% of furnace charge amount, is skimmed again after standing 40 minutes, afterwards respectively to outer shroud and interior
Ring is poured into a mould;Pouring temperature is 1300 DEG C;The outer shroud and inner ring blank for obtaining are heat-treated:First by outer shroud and interior ring billet
Material carries out being heated to 700 DEG C, and 100 DEG C/h of heating rate is incubated 3 hours, and Quenching Treatment, hardening media are carried out afterwards
It is water, outer shroud and inner ring blank is heated to 500 DEG C from room temperature after quenching, 100 DEG C/h of heating rate is incubated 4 hours, after
Be cooled to 350 DEG C, 60 DEG C/h of rate of temperature fall is incubated 2 hours, after be cooled to 250 DEG C again, 70 DEG C/h of rate of temperature fall,
Insulation 5 hours, after be air cooled to room temperature,
Inner ring and outer rings blank is warming up to 650 DEG C, 150 DEG C/h of heating rate is incubated 1 hour, and water-cooled is quenched afterwards
Fire, again heat base substrate to 500 DEG C be incubated 3 hours, come out of the stove and be air cooled to room temperature;Base substrate is put into subzero treatment 5 minutes in liquid nitrogen,
Room temperature is gone back up in air;
External ring inner surface carries out built-up welding after subzero treatment, and bead-welding technology is:200 DEG C of preheatings;During built-up welding, electric current is 62A,
Voltage is 12V, and built-up welding speed is 13mm/s, and argon flow amount is 13L/min, and overlay cladding thickness is 2.5mm;, delay after the completion of built-up welding
Slow cool down;Overlay cladding is constituted:Zn 20-30%, Si 6-7%, Cr 1-2%, Mo 0.8-0.9%, C 0.5-0.6%, Bi 0.2-
0.3%, Sn 0.03-0.04%, balance of Mg;
Internal ring outer surface carries out built-up welding, and bead-welding technology is:190 DEG C of preheatings, during built-up welding, electric current is 56A, and voltage is 12V,
Built-up welding speed is 9mm/s, and argon flow amount is 9L/min, and overlay cladding thickness is 3mm;, Slow cooling after the completion of built-up welding;Overlay cladding group
Turn into:Sn 20-25%, Zn 3-4%, Cr 2-3%, Si 1-2%, V 0.5-0.6%, C 0.4-0.5%, Ti 0.07-
0.08%, balance of Al;
The method and step for manufacturing the ball is:
Carry out melting according to the elemental constituent of ball material of main part, after cast, obtain blank, ball material of main part by with
Lower element composition:C 0.1-0.2%, Si 2-3%, Ni 5-6%, Cu 1-2%, Mo 0.8-0.9%, Sn 0.5-0.6%, Ti
0.4-0.5%, Zn 0.1-0.2%, W 0.08-0.09%, Mn 0.04-0.05%, Ag 0.03-0.04%, Pr 0.01-0.02%,
Balance of Fe and inevitable impurity;
Blank is molded through pier is subcooled, filing, buffing, heat treatment, hard grind, polishing, lappingout step obtains ball main body, institute
Stating heat treatment step is, ball after buffing is warming up into 770 DEG C, and 80 DEG C/h of heating rate is incubated 5 hours, and water-cooled is quenched afterwards
Fire, heats ball and is incubated 4 hours at 600 DEG C again, comes out of the stove and is air cooled to room temperature;
The ball main body that lappingout is obtained carries out surface coating, and coating composition is:Aluminium nitride 40-50 parts, titanium nitride 30-40
Part, coating layer thickness 20-30 microns, obtain final ball.
Foregoing invention content is relative to the beneficial effect of prior art:1)Copper-based alloy material of the present invention fully meets
The intensity requirement of outer race and inner ring;2)The bulk hardness hardness and intensity creep resistant of bearing are improved to outer race and inner ring
Performance, it is to avoid crackle occur; 3)Outer race inner surface and interior ring outer surface are carried out built-up welding process so that bearing reach it is higher
Wearability and fatigue performance, corresponding decay resistance is also improved;4)It is coated by ball outside surface, is carried
The wear and corrosion behavior of material high, effectively increases the service life.
Brief description of the drawings
Fig. 1 is ball bearing structure schematic diagram.
Specific embodiment
In order to be more clearly understood to technical characteristic of the invention, purpose and effect, now describe in detail of the invention
Specific embodiment.
A kind of petroleum machinery bearing as shown in Figure 1, it is characterised in that:Including:Outer shroud 1, inner ring 2, ball 3 and retainer
(not shown), outer shroud 1 and the coaxially connected setting of inner ring 2, multiple balls 3 be evenly distributed on the outer shroud 1 and the inner ring 2 it
Between, the retainer of restricted ball movement is fixed between the outer shroud 1 and the inner ring 2,
Embodiment 1
A kind of petroleum machinery bearing, it is characterised in that including:Outer shroud, inner ring, ball and retainer, outer shroud are same with inner ring
Axle connect setting, multiple balls are evenly distributed between the outer shroud and the inner ring, solid between the outer shroud and the inner ring
The retainer of fixed restricted ball movement, outer ring inner surface has magnesium alloy overlay cladding, and interior ring outer surface has aluminium alloy built-up welding
Layer,
Outer shroud and inner ring material of main part select copper alloy
Copper alloy chemical composition is(Percentage by weight):Cr:8 ﹪, Si:5 ﹪, Ni:4 ﹪, Al:1 ﹪, W:0.7 ﹪, Bi
0.5 ﹪, Zn:0.4 ﹪, Ca:0.2 ﹪, Cd:0.08 ﹪, Zn:0.05 ﹪, Nb:0.04 ﹪, Ag:0.02 ﹪, La:0.01 ﹪, it is remaining
Measure is Cu and inevitable impurity;
Manufacture the outer shroud and inner ring is comprised the following steps:According to above-mentioned copper alloy chemical composition dispensing, first fine copper is added
Enter in smelting furnace, at 1300 DEG C, after after fine copper fusing, copper melt temperature is raised to 1320 DEG C and adds conjunction in the middle of chromium-copper Control for Kiln Temperature
Gold, after by furnace temperature be increased to 1340 DEG C addition copper silicon intermediate alloys;Furnace temperature is increased to 1360 DEG C of addition nickel-copper intermediate alloys afterwards;
Furnace temperature is increased to 1380 DEG C afterwards and adds other alloying elements, rear furnace temperature is increased to 1400 DEG C, add refining cleanser, refining is net
Agent addition is the 0.9% of furnace charge amount, is stirred 50 minutes, stands 100 minutes, treats that slag is separated with molten metal, is skimmed, and is added afterwards
Coverture, the total addition of coverture is the 0.6% of furnace charge amount, is skimmed again after standing 40 minutes, afterwards respectively to outer shroud and interior
Ring is poured into a mould;Pouring temperature is 1300 DEG C;The outer shroud and inner ring blank for obtaining are heat-treated:First by outer shroud and interior ring billet
Material carries out being heated to 700 DEG C, and 100 DEG C/h of heating rate is incubated 3 hours, and Quenching Treatment, hardening media are carried out afterwards
It is water, outer shroud and inner ring blank is heated to 500 DEG C from room temperature after quenching, 100 DEG C/h of heating rate is incubated 4 hours, after
Be cooled to 350 DEG C, 60 DEG C/h of rate of temperature fall is incubated 2 hours, after be cooled to 250 DEG C again, 70 DEG C/h of rate of temperature fall,
Insulation 5 hours, after be air cooled to room temperature,
Inner ring and outer rings blank is warming up to 650 DEG C, 150 DEG C/h of heating rate is incubated 1 hour, and water-cooled is quenched afterwards
Fire, again heat base substrate to 500 DEG C be incubated 3 hours, come out of the stove and be air cooled to room temperature;Base substrate is put into subzero treatment 5 minutes in liquid nitrogen,
Room temperature is gone back up in air;
External ring inner surface carries out built-up welding after subzero treatment, and bead-welding technology is:200 DEG C of preheatings;During built-up welding, electric current is 62A,
Voltage is 12V, and built-up welding speed is 13mm/s, and argon flow amount is 13L/min, and overlay cladding thickness is 2.5mm;, delay after the completion of built-up welding
Slow cool down;Overlay cladding is constituted:Zn 20%, Si 6%, Cr 1%, Mo 0.8%, C 0.5%, Bi 0.2%, Sn 0.03%, it is balance of
Mg;
Internal ring outer surface carries out built-up welding, and bead-welding technology is:190 DEG C of preheatings, during built-up welding, electric current is 56A, and voltage is 12V,
Built-up welding speed is 9mm/s, and argon flow amount is 9L/min, and overlay cladding thickness is 3mm;, Slow cooling after the completion of built-up welding;Overlay cladding group
Turn into:Sn 20%, Zn 3%, Cr 2%, Si 1%, V 0.5%, C 0.4%, Ti 0.07%, balance of Al;
The method and step for manufacturing the ball is:
Carry out melting according to the elemental constituent of ball material of main part, after cast, obtain blank, ball material of main part by with
Lower element composition:C 0.1%, Si 2%, Ni 5%, Cu 1%, Mo 0.8%, Sn 0.5%, Ti 0.4%, Zn 0.1%, W 0.08%,
Mn 0.04%, Ag 0.03%, Pr 0.01%, balance of Fe and inevitable impurity;
Blank is molded through pier is subcooled, filing, buffing, heat treatment, hard grind, polishing, lappingout step obtains ball main body, institute
Stating heat treatment step is, ball after buffing is warming up into 770 DEG C, and 80 DEG C/h of heating rate is incubated 5 hours, and water-cooled is quenched afterwards
Fire, heats ball and is incubated 4 hours at 600 DEG C again, comes out of the stove and is air cooled to room temperature;
The ball main body that lappingout is obtained carries out surface coating, and coating composition is:40 parts of aluminium nitride, 30 parts of titanium nitride is applied
20-30 microns of thickness degree, obtains final ball.
Embodiment 2
A kind of petroleum machinery bearing, it is characterised in that including:Outer shroud, inner ring, ball and retainer, outer shroud are same with inner ring
Axle connect setting, multiple balls are evenly distributed between the outer shroud and the inner ring, solid between the outer shroud and the inner ring
The retainer of fixed restricted ball movement, outer ring inner surface has magnesium alloy overlay cladding, and interior ring outer surface has aluminium alloy built-up welding
Layer,
Outer shroud and inner ring material of main part select copper alloy
Copper alloy chemical composition is(Percentage by weight):Cr:9 ﹪, Si:6 ﹪, Ni:5 ﹪, Al:2 ﹪, W:0.8 ﹪,
Bi 0.6 ﹪, Zn:0.5 ﹪, Ca:0.3 ﹪, Cd:0.09 ﹪, Zn:0.06 ﹪, Nb:0.05 ﹪, Ag:0.03 ﹪, La:
0.02 ﹪, balance of Cu and inevitable impurity;
Manufacture the outer shroud and inner ring is comprised the following steps:According to above-mentioned copper alloy chemical composition dispensing, first fine copper is added
Enter in smelting furnace, at 1300 DEG C, after after fine copper fusing, copper melt temperature is raised to 1320 DEG C and adds conjunction in the middle of chromium-copper Control for Kiln Temperature
Gold, after by furnace temperature be increased to 1340 DEG C addition copper silicon intermediate alloys;Furnace temperature is increased to 1360 DEG C of addition nickel-copper intermediate alloys afterwards;
Furnace temperature is increased to 1380 DEG C afterwards and adds other alloying elements, rear furnace temperature is increased to 1400 DEG C, add refining cleanser, refining is net
Agent addition is the 0.9% of furnace charge amount, is stirred 50 minutes, stands 100 minutes, treats that slag is separated with molten metal, is skimmed, and is added afterwards
Coverture, the total addition of coverture is the 0.6% of furnace charge amount, is skimmed again after standing 40 minutes, afterwards respectively to outer shroud and interior
Ring is poured into a mould;Pouring temperature is 1300 DEG C;The outer shroud and inner ring blank for obtaining are heat-treated:First by outer shroud and interior ring billet
Material carries out being heated to 700 DEG C, and 100 DEG C/h of heating rate is incubated 3 hours, and Quenching Treatment, hardening media are carried out afterwards
It is water, outer shroud and inner ring blank is heated to 500 DEG C from room temperature after quenching, 100 DEG C/h of heating rate is incubated 4 hours, after
Be cooled to 350 DEG C, 60 DEG C/h of rate of temperature fall is incubated 2 hours, after be cooled to 250 DEG C again, 70 DEG C/h of rate of temperature fall,
Insulation 5 hours, after be air cooled to room temperature,
Inner ring and outer rings blank is warming up to 650 DEG C, 150 DEG C/h of heating rate is incubated 1 hour, and water-cooled is quenched afterwards
Fire, again heat base substrate to 500 DEG C be incubated 3 hours, come out of the stove and be air cooled to room temperature;Base substrate is put into subzero treatment 5 minutes in liquid nitrogen,
Room temperature is gone back up in air;
External ring inner surface carries out built-up welding after subzero treatment, and bead-welding technology is:200 DEG C of preheatings;During built-up welding, electric current is 62A,
Voltage is 12V, and built-up welding speed is 13mm/s, and argon flow amount is 13L/min, and overlay cladding thickness is 2.5mm;, delay after the completion of built-up welding
Slow cool down;Overlay cladding is constituted:Zn 30%, Si 7%, Cr 2%, Mo 0.9%, C 0.6%, Bi 0.3%, Sn 0.04%, it is balance of
Mg;
Internal ring outer surface carries out built-up welding, and bead-welding technology is:190 DEG C of preheatings, during built-up welding, electric current is 56A, and voltage is 12V,
Built-up welding speed is 9mm/s, and argon flow amount is 9L/min, and overlay cladding thickness is 3mm;, Slow cooling after the completion of built-up welding;Overlay cladding group
Turn into:Sn 25%, Zn 4%, Cr 3%, Si 2%, V 0.6%, C 0.5%, Ti 0.08%, balance of Al;
The method and step for manufacturing the ball is:
Carry out melting according to the elemental constituent of ball material of main part, after cast, obtain blank, ball material of main part by with
Lower element composition:C 0.2%, Si 3%, Ni 6%, Cu 2%, Mo 0.9%, Sn 0.6%, Ti 0.5%, Zn 0.2%, W 0.09%,
Mn 0.05%, Ag 0.04%, Pr 0.02%, balance of Fe and inevitable impurity;
Blank is molded through pier is subcooled, filing, buffing, heat treatment, hard grind, polishing, lappingout step obtains ball main body, institute
Stating heat treatment step is, ball after buffing is warming up into 770 DEG C, and 80 DEG C/h of heating rate is incubated 5 hours, and water-cooled is quenched afterwards
Fire, heats ball and is incubated 4 hours at 600 DEG C again, comes out of the stove and is air cooled to room temperature;
The ball main body that lappingout is obtained carries out surface coating, and coating composition is:50 parts of aluminium nitride, 40 parts of titanium nitride,
Coating layer thickness 20-30 microns, obtain final ball.
Embodiment 3
A kind of petroleum machinery bearing, it is characterised in that including:Outer shroud, inner ring, ball and retainer, outer shroud are same with inner ring
Axle connect setting, multiple balls are evenly distributed between the outer shroud and the inner ring, solid between the outer shroud and the inner ring
The retainer of fixed restricted ball movement, outer ring inner surface has magnesium alloy overlay cladding, and interior ring outer surface has aluminium alloy built-up welding
Layer,
Outer shroud and inner ring material of main part select copper alloy
Copper alloy chemical composition is(Percentage by weight):Cr:8.2 ﹪, Si:5.3 ﹪, Ni:4.4 ﹪, Al:1.1 ﹪, W:
0.72 ﹪, Bi 0.51 ﹪, Zn:0.43 ﹪, Ca:0.24 ﹪, Cd:0.083 ﹪, Zn:0.052 ﹪, Nb:0.043 ﹪, Ag:
0.022 ﹪, La:0.014 ﹪, balance of Cu and inevitable impurity;
Manufacture the outer shroud and inner ring is comprised the following steps:According to above-mentioned copper alloy chemical composition dispensing, first fine copper is added
Enter in smelting furnace, at 1300 DEG C, after after fine copper fusing, copper melt temperature is raised to 1320 DEG C and adds conjunction in the middle of chromium-copper Control for Kiln Temperature
Gold, after by furnace temperature be increased to 1340 DEG C addition copper silicon intermediate alloys;Furnace temperature is increased to 1360 DEG C of addition nickel-copper intermediate alloys afterwards;
Furnace temperature is increased to 1380 DEG C afterwards and adds other alloying elements, rear furnace temperature is increased to 1400 DEG C, add refining cleanser, refining is net
Agent addition is the 0.9% of furnace charge amount, is stirred 50 minutes, stands 100 minutes, treats that slag is separated with molten metal, is skimmed, and is added afterwards
Coverture, the total addition of coverture is the 0.6% of furnace charge amount, is skimmed again after standing 40 minutes, afterwards respectively to outer shroud and interior
Ring is poured into a mould;Pouring temperature is 1300 DEG C;The outer shroud and inner ring blank for obtaining are heat-treated:First by outer shroud and interior ring billet
Material carries out being heated to 700 DEG C, and 100 DEG C/h of heating rate is incubated 3 hours, and Quenching Treatment, hardening media are carried out afterwards
It is water, outer shroud and inner ring blank is heated to 500 DEG C from room temperature after quenching, 100 DEG C/h of heating rate is incubated 4 hours, after
Be cooled to 350 DEG C, 60 DEG C/h of rate of temperature fall is incubated 2 hours, after be cooled to 250 DEG C again, 70 DEG C/h of rate of temperature fall,
Insulation 5 hours, after be air cooled to room temperature,
Inner ring and outer rings blank is warming up to 650 DEG C, 150 DEG C/h of heating rate is incubated 1 hour, and water-cooled is quenched afterwards
Fire, again heat base substrate to 500 DEG C be incubated 3 hours, come out of the stove and be air cooled to room temperature;Base substrate is put into subzero treatment 5 minutes in liquid nitrogen,
Room temperature is gone back up in air;
External ring inner surface carries out built-up welding after subzero treatment, and bead-welding technology is:200 DEG C of preheatings;During built-up welding, electric current is 62A,
Voltage is 12V, and built-up welding speed is 13mm/s, and argon flow amount is 13L/min, and overlay cladding thickness is 2.5mm;, delay after the completion of built-up welding
Slow cool down;Overlay cladding is constituted:Zn 22%, Si 6.1%, Cr 1.3%, Mo 0.83%, C 0.54%, Bi 0.24%, Sn
0.033%, balance of Mg;
Internal ring outer surface carries out built-up welding, and bead-welding technology is:190 DEG C of preheatings, during built-up welding, electric current is 56A, and voltage is 12V,
Built-up welding speed is 9mm/s, and argon flow amount is 9L/min, and overlay cladding thickness is 3mm;, Slow cooling after the completion of built-up welding;Overlay cladding group
Turn into:Sn 21%, Zn 3.2%, Cr 2.3%, Si 1.4%, V 0.54%, C 0.43%, Ti 0.072%, balance of Al;
The method and step for manufacturing the ball is:
Carry out melting according to the elemental constituent of ball material of main part, after cast, obtain blank, ball material of main part by with
Lower element composition:C 0.11%, Si 2.1%, Ni 5.3%, Cu 1.4%, Mo 0.83%, Sn 0.52%, Ti 0.43%, Zn
0.12%, W 0.081%, Mn 0.041%, Ag 0.032%, Pr 0.013%, balance of Fe and inevitable impurity;
Blank is molded through pier is subcooled, filing, buffing, heat treatment, hard grind, polishing, lappingout step obtains ball main body, institute
Stating heat treatment step is, ball after buffing is warming up into 770 DEG C, and 80 DEG C/h of heating rate is incubated 5 hours, and water-cooled is quenched afterwards
Fire, heats ball and is incubated 4 hours at 600 DEG C again, comes out of the stove and is air cooled to room temperature;
The ball main body that lappingout is obtained carries out surface coating, and coating composition is:44 parts of aluminium nitride, 32 parts of titanium nitride is applied
20-30 microns of thickness degree, obtains final ball.
Embodiment 4
A kind of petroleum machinery bearing, it is characterised in that including:Outer shroud, inner ring, ball and retainer, outer shroud are same with inner ring
Axle connect setting, multiple balls are evenly distributed between the outer shroud and the inner ring, solid between the outer shroud and the inner ring
The retainer of fixed restricted ball movement, outer ring inner surface has magnesium alloy overlay cladding, and interior ring outer surface has aluminium alloy built-up welding
Layer,
Outer shroud and inner ring material of main part select copper alloy
Copper alloy chemical composition is(Percentage by weight):Cr:8.5 ﹪, Si:5.5 ﹪, Ni:4.5 ﹪, Al:1.5 ﹪, W:
0.75 ﹪, Bi 0.55 ﹪, Zn:0.45 ﹪, Ca:0.25 ﹪, Cd:0.085 ﹪, Zn:0.055 ﹪, Nb:0.045 ﹪, Ag:
0.025 ﹪, La:0.015 ﹪, balance of Cu and inevitable impurity;
Manufacture the outer shroud and inner ring is comprised the following steps:According to above-mentioned copper alloy chemical composition dispensing, first fine copper is added
Enter in smelting furnace, at 1300 DEG C, after after fine copper fusing, copper melt temperature is raised to 1320 DEG C and adds conjunction in the middle of chromium-copper Control for Kiln Temperature
Gold, after by furnace temperature be increased to 1340 DEG C addition copper silicon intermediate alloys;Furnace temperature is increased to 1360 DEG C of addition nickel-copper intermediate alloys afterwards;
Furnace temperature is increased to 1380 DEG C afterwards and adds other alloying elements, rear furnace temperature is increased to 1400 DEG C, add refining cleanser, refining is net
Agent addition is the 0.9% of furnace charge amount, is stirred 50 minutes, stands 100 minutes, treats that slag is separated with molten metal, is skimmed, and is added afterwards
Coverture, the total addition of coverture is the 0.6% of furnace charge amount, is skimmed again after standing 40 minutes, afterwards respectively to outer shroud and interior
Ring is poured into a mould;Pouring temperature is 1300 DEG C;The outer shroud and inner ring blank for obtaining are heat-treated:First by outer shroud and interior ring billet
Material carries out being heated to 700 DEG C, and 100 DEG C/h of heating rate is incubated 3 hours, and Quenching Treatment, hardening media are carried out afterwards
It is water, outer shroud and inner ring blank is heated to 500 DEG C from room temperature after quenching, 100 DEG C/h of heating rate is incubated 4 hours, after
Be cooled to 350 DEG C, 60 DEG C/h of rate of temperature fall is incubated 2 hours, after be cooled to 250 DEG C again, 70 DEG C/h of rate of temperature fall,
Insulation 5 hours, after be air cooled to room temperature,
Inner ring and outer rings blank is warming up to 650 DEG C, 150 DEG C/h of heating rate is incubated 1 hour, and water-cooled is quenched afterwards
Fire, again heat base substrate to 500 DEG C be incubated 3 hours, come out of the stove and be air cooled to room temperature;Base substrate is put into subzero treatment 5 minutes in liquid nitrogen,
Room temperature is gone back up in air;
External ring inner surface carries out built-up welding after subzero treatment, and bead-welding technology is:200 DEG C of preheatings;During built-up welding, electric current is 62A,
Voltage is 12V, and built-up welding speed is 13mm/s, and argon flow amount is 13L/min, and overlay cladding thickness is 2.5mm;, delay after the completion of built-up welding
Slow cool down;Overlay cladding is constituted:Zn 25%, Si 6.5%, Cr 1.5%, Mo 0.85%, C 0.55%, Bi 0.25%, Sn
0.035%, balance of Mg;
Internal ring outer surface carries out built-up welding, and bead-welding technology is:190 DEG C of preheatings, during built-up welding, electric current is 56A, and voltage is 12V,
Built-up welding speed is 9mm/s, and argon flow amount is 9L/min, and overlay cladding thickness is 3mm;, Slow cooling after the completion of built-up welding;Overlay cladding group
Turn into:Sn 23%, Zn 3-4%, Cr 2.5%, Si 1.5%, V 0.55%, C 0.45%, Ti 0.075%, balance of Al;
The method and step for manufacturing the ball is:
Carry out melting according to the elemental constituent of ball material of main part, after cast, obtain blank, ball material of main part by with
Lower element composition:C 0.15%, Si 2.5%, Ni 5.5%, Cu 1.5%, Mo 0.85%, Sn 0.55%, Ti 0.45, Zn
0.15%, W 0.085%, Mn 0.045%, Ag 0.035%, Pr 0.015%, balance of Fe and inevitable impurity;
Blank is molded through pier is subcooled, filing, buffing, heat treatment, hard grind, polishing, lappingout step obtains ball main body, institute
Stating heat treatment step is, ball after buffing is warming up into 770 DEG C, and 80 DEG C/h of heating rate is incubated 5 hours, and water-cooled is quenched afterwards
Fire, heats ball and is incubated 4 hours at 600 DEG C again, comes out of the stove and is air cooled to room temperature;
The ball main body that lappingout is obtained carries out surface coating, and coating composition is:45 parts of aluminium nitride, 35 parts of titanium nitride is applied
20-30 microns of thickness degree, obtains final ball.
Embodiment 5
A kind of petroleum machinery bearing, it is characterised in that including:Outer shroud, inner ring, ball and retainer, outer shroud are same with inner ring
Axle connect setting, multiple balls are evenly distributed between the outer shroud and the inner ring, solid between the outer shroud and the inner ring
The retainer of fixed restricted ball movement, outer ring inner surface has magnesium alloy overlay cladding, and interior ring outer surface has aluminium alloy built-up welding
Layer,
Outer shroud and inner ring material of main part select copper alloy
Copper alloy chemical composition is(Percentage by weight):Cr:8.6 ﹪, Si:5.7 ﹪, Ni:4.8 ﹪, Al:1.9 ﹪, W:
0.77 ﹪, Bi 0.57 ﹪, Zn:0.46 ﹪, Ca:0.27 ﹪, Cd:0.087 ﹪, Zn:0.058, Nb:0.049 ﹪, Ag:
0.029 ﹪, La:0.019 ﹪, balance of Cu and inevitable impurity;
Manufacture the outer shroud and inner ring is comprised the following steps:According to above-mentioned copper alloy chemical composition dispensing, first fine copper is added
Enter in smelting furnace, at 1300 DEG C, after after fine copper fusing, copper melt temperature is raised to 1320 DEG C and adds conjunction in the middle of chromium-copper Control for Kiln Temperature
Gold, after by furnace temperature be increased to 1340 DEG C addition copper silicon intermediate alloys;Furnace temperature is increased to 1360 DEG C of addition nickel-copper intermediate alloys afterwards;
Furnace temperature is increased to 1380 DEG C afterwards and adds other alloying elements, rear furnace temperature is increased to 1400 DEG C, add refining cleanser, refining is net
Agent addition is the 0.9% of furnace charge amount, is stirred 50 minutes, stands 100 minutes, treats that slag is separated with molten metal, is skimmed, and is added afterwards
Coverture, the total addition of coverture is the 0.6% of furnace charge amount, is skimmed again after standing 40 minutes, afterwards respectively to outer shroud and interior
Ring is poured into a mould;Pouring temperature is 1300 DEG C;The outer shroud and inner ring blank for obtaining are heat-treated:First by outer shroud and interior ring billet
Material carries out being heated to 700 DEG C, and 100 DEG C/h of heating rate is incubated 3 hours, and Quenching Treatment, hardening media are carried out afterwards
It is water, outer shroud and inner ring blank is heated to 500 DEG C from room temperature after quenching, 100 DEG C/h of heating rate is incubated 4 hours, after
Be cooled to 350 DEG C, 60 DEG C/h of rate of temperature fall is incubated 2 hours, after be cooled to 250 DEG C again, 70 DEG C/h of rate of temperature fall,
Insulation 5 hours, after be air cooled to room temperature,
Inner ring and outer rings blank is warming up to 650 DEG C, 150 DEG C/h of heating rate is incubated 1 hour, and water-cooled is quenched afterwards
Fire, again heat base substrate to 500 DEG C be incubated 3 hours, come out of the stove and be air cooled to room temperature;Base substrate is put into subzero treatment 5 minutes in liquid nitrogen,
Room temperature is gone back up in air;
External ring inner surface carries out built-up welding after subzero treatment, and bead-welding technology is:200 DEG C of preheatings;During built-up welding, electric current is 62A,
Voltage is 12V, and built-up welding speed is 13mm/s, and argon flow amount is 13L/min, and overlay cladding thickness is 2.5mm;, delay after the completion of built-up welding
Slow cool down;Overlay cladding is constituted:Zn 27%, Si 6.8%, Cr 1.9%, Mo 0.87%, C 0.57%, Bi 0.26%, Sn
0.036%, balance of Mg;
Internal ring outer surface carries out built-up welding, and bead-welding technology is:190 DEG C of preheatings, during built-up welding, electric current is 56A, and voltage is 12V,
Built-up welding speed is 9mm/s, and argon flow amount is 9L/min, and overlay cladding thickness is 3mm;, Slow cooling after the completion of built-up welding;Overlay cladding group
Turn into:Sn 24%, Zn 3.7%, Cr 2.6%, Si 1.8%, V 0.57%, C 0.48%, Ti 0.079%, balance of Al;
The method and step for manufacturing the ball is:
Carry out melting according to the elemental constituent of ball material of main part, after cast, obtain blank, ball material of main part by with
Lower element composition:C 0.16%, Si 2.8%, Ni 5.7%, Cu 1.8%, Mo 0.89%, Sn 0.59%, Ti 0.48%, Zn
0.18%, W 0.087%, Mn 0.046%, Ag 0.036%, Pr 0.017%, balance of Fe and inevitable impurity;
Blank is molded through pier is subcooled, filing, buffing, heat treatment, hard grind, polishing, lappingout step obtains ball main body, institute
Stating heat treatment step is, ball after buffing is warming up into 770 DEG C, and 80 DEG C/h of heating rate is incubated 5 hours, and water-cooled is quenched afterwards
Fire, heats ball and is incubated 4 hours at 600 DEG C again, comes out of the stove and is air cooled to room temperature;
The ball main body that lappingout is obtained carries out surface coating, and coating composition is:48 parts of aluminium nitride, 37 parts of titanium nitride is applied
20-30 microns of thickness degree, obtains final ball.