CN105821262B - Bearing is special to slide alloy material, alloy slide construction part and its manufacturing method - Google Patents
Bearing is special to slide alloy material, alloy slide construction part and its manufacturing method Download PDFInfo
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- CN105821262B CN105821262B CN201610181748.5A CN201610181748A CN105821262B CN 105821262 B CN105821262 B CN 105821262B CN 201610181748 A CN201610181748 A CN 201610181748A CN 105821262 B CN105821262 B CN 105821262B
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- slide construction
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- 238000010276 construction Methods 0.000 title claims abstract description 56
- 239000000956 alloy Substances 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 15
- 238000005096 rolling process Methods 0.000 claims abstract description 51
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 32
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000004411 aluminium Substances 0.000 claims abstract description 24
- 238000012545 processing Methods 0.000 claims abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 17
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 12
- 239000011651 chromium Substances 0.000 claims abstract description 12
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 239000010949 copper Substances 0.000 claims abstract description 12
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000011777 magnesium Substances 0.000 claims abstract description 9
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 9
- 239000010703 silicon Substances 0.000 claims abstract description 9
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 9
- 230000001550 time effect Effects 0.000 claims abstract description 9
- 239000010936 titanium Substances 0.000 claims abstract description 9
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 9
- 239000011701 zinc Substances 0.000 claims abstract description 9
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 9
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 8
- 239000011572 manganese Substances 0.000 claims abstract description 8
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims abstract description 5
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims abstract description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 56
- 238000007670 refining Methods 0.000 claims description 56
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 48
- 238000005266 casting Methods 0.000 claims description 46
- 229910052751 metal Inorganic materials 0.000 claims description 45
- 239000002184 metal Substances 0.000 claims description 45
- 150000002739 metals Chemical class 0.000 claims description 42
- 239000000463 material Substances 0.000 claims description 37
- 238000000137 annealing Methods 0.000 claims description 36
- 239000003795 chemical substances by application Substances 0.000 claims description 29
- 230000008018 melting Effects 0.000 claims description 29
- 238000002844 melting Methods 0.000 claims description 29
- 229910052757 nitrogen Inorganic materials 0.000 claims description 24
- 238000005098 hot rolling Methods 0.000 claims description 22
- 238000004321 preservation Methods 0.000 claims description 19
- 238000010791 quenching Methods 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 15
- 230000032683 aging Effects 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 11
- 230000000171 quenching effect Effects 0.000 claims description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000005303 weighing Methods 0.000 claims description 8
- 230000005021 gait Effects 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 2
- 239000000460 chlorine Substances 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- 239000013535 sea water Substances 0.000 claims description 2
- 238000002386 leaching Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 10
- 230000007797 corrosion Effects 0.000 abstract description 8
- -1 polytetrafluoroethylene Polymers 0.000 abstract description 7
- 230000003746 surface roughness Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000013021 overheating Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 8
- 239000010935 stainless steel Substances 0.000 description 7
- 229910001220 stainless steel Inorganic materials 0.000 description 7
- 239000010410 layer Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 229910000975 Carbon steel Inorganic materials 0.000 description 5
- 229910001051 Magnalium Inorganic materials 0.000 description 5
- 238000003723 Smelting Methods 0.000 description 5
- 229910000635 Spelter Inorganic materials 0.000 description 5
- QRRWWGNBSQSBAM-UHFFFAOYSA-N alumane;chromium Chemical compound [AlH3].[Cr] QRRWWGNBSQSBAM-UHFFFAOYSA-N 0.000 description 5
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 description 5
- 239000010962 carbon steel Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000012299 nitrogen atmosphere Substances 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 238000010410 dusting Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910019752 Mg2Si Inorganic materials 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 239000001996 bearing alloy Substances 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000013036 cure process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical group [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Sliding-Contact Bearings (AREA)
- Metal Rolling (AREA)
Abstract
The present invention provides a kind of special slip alloy material of bearing, alloy slide construction part and its manufacturing methods.On the basis of the total weight of the alloy material, into be grouped into including：Silicon 0.9 1.5%, iron≤0.50%, copper≤0.10%, manganese 0.60 1.1%, magnesium 0.8 1.3%, chromium≤0.25%, zinc≤0.20%, titanium≤0.1% and aluminium surplus.The structural member be using above-mentioned special component composition alloy material through Overheating Treatment, stretch go de-stress, two-stage time effect and the rolling of sliding surface Constant Linear Velocity processing and etc. manufacture obtain.The structural member that the structural member is integrated, its mechanical property, mechanical performance, wearability, slip surface roughness, corrosion resistance, and the coefficient of sliding friction with polytetrafluoroethylene (PTFE) slide plate or modified ultra-high molecular weight polyethylene slide plate etc., it is superior to national Its Relevant Technology Standards requirement, and its yield strength is more than 280MPa, the roughness Ra of sliding surface is less than 1.0 μm.
Description
Technical field
The invention belongs to technical field of alloy material, and in particular to a kind of bearing is special, and to slide alloy material, bearing special
Alloy slide construction part and its manufacturing method, the alloy slide construction part can be used in the bearing in fields such as bridge and building.
Background technology
Slide construction part in bearing such as spherical bearing slide construction part (i.e. intermediate plate or spherical crown liner plate), there is three at present
Kind：First, plate one layer of chromium in carbon steel spherical face and reach corrosion-resistant purpose.Ensure surface roughness Ra by polishing chrome layer<
1.6μm.Entire intermediate plate is " non-integral component ".Chrome layer needs to polish, and easily occurs exposed in edge carbon steel and causes portion
Part anti-corrosion fails, and the chrome layer after polishing, which is substantially all, is not achieved technology requirement of the thickness more than 100 μm, of high cost, it is necessary to the
Environment is polluted in tripartite's chromium plating.This scheme is eliminated substantially.2nd, mirror face stainless steel is wrapped up in carbon steel balls bread, is connect with carbon steel
It is welded to connect at mouthful.Mirror face stainless steel plate roughness Ra<0.8μm.Entire spherical crown liner plate is " non-integral component ", is using process
In, since stainless steel yield strength is relatively low, drum is easily played, can lead to problems such as to rotate dumb.In addition, in carbon steel and stainless steel plate
Soldering opening, welding material can generate chemistry and electrochemical corrosion, welding rod quality welder's level etc. causes the wind of desoldering because being known as
Danger is failed so as to cause structural member anti-corrosion.3rd, Europe bearing standard EN1337-2 includes aluminum alloy materials as slide construction
The related content of part：Aluminium alloy Al-Mg6M or Al-Si7MgTF surface anode electroplating aluminum coating, entire spherical crown liner plate are non-integral portion
Part ensures that surface roughness meets the requirements by polishing oxide-film.Due to material composition problem and without appropriate heat treatment
Technique and stretching destressing problem, lead to problems such as aluminium alloy slide construction part intensity low and wear no resistance.Meanwhile electroplated layer takes off
Fall to cause etching problem, coating process pollution environment is unsuitable for promoting the use of.Also due to above-mentioned various reasons, the aluminium alloy
Slide construction part does not have technical standard and application in China.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide a kind of special slip alloy material of bearing, one kind
Bearing special metals slide construction part and its manufacturing method.What bearing special metals slide construction part provided by the invention was integrated
Structural member has preferable mechanical property, mechanical performance, wearability, the slip performances such as surface roughness and corrosion resistance.
In order to achieve the above objectives, it is special with the bearing present invention firstly provides a kind of special slip alloy material of bearing
With slide alloy material total weight on the basis of, into be grouped into including：Silicon 0.9-1.5%, iron≤0.50%, copper≤
0.10%th, manganese 0.60-1.1%, magnesium 0.8-1.3%, chromium≤0.25%, zinc≤0.20%, titanium≤0.1% and aluminium surplus.
Alloy material provided by the invention is optimized each by adding the ingredients such as silicon, chromium, zinc, manganese, magnesium, titanium in aluminium
The ratio of ingredient can improve the mechanical strength of the alloy structure part being prepared with the alloy material, machinability and resistance to
The performances such as corrosivity.
Specific embodiment according to the present invention, it is preferable that the above-mentioned special slip alloy material of bearing can be by following
Step manufactures to obtain：According into being grouped into selection and weighing raw material, melting, refining and casting are then carried out, casting is prepared
Ingot is the special slip alloy material of bearing.
Specific embodiment according to the present invention, it is preferable that in above-mentioned manufacturing step, according into being grouped into selection and claim
Amount raw material are according into being grouped into selection and weigh fine aluminium block, ferro-aluminum block, aluminum bronze block, aluminium manganese block, magnalium block, aluminium chromium block, aluminium
Spelter and aluminium titanium block, and these metal derbies or alloy block can be the ingot casting of fritter.
Specific embodiment according to the present invention, it is preferable that in above-mentioned manufacturing step, the step of melting includes：
Raw material carry out melting at 740-760 DEG C after choosing and weighing, and obtain molten aluminium alloy.The present invention for melting time or
Speed does not limit, and those skilled in the art can carry out conventional adjusting according to the different of the smelting furnace of use, as long as making institute
It is uniform to state raw material fusing.
Specific embodiment according to the present invention, it is preferable that in above-mentioned manufacturing step, the step of refining includes：
The molten aluminium alloy that melting obtains at 735-745 DEG C is refined 10-20 minutes, then stands 25-35 minutes at 735-745 DEG C,
Molten aluminium alloy after being refined.In the present invention, after melting, molten aluminium alloy can be stirred several times so that aluminium closes
Golden melt is more uniformly distributed that (speed and time for stirring are not limited, and conventional tune can be carried out by those skilled in the art
Section), it is then transferred in standing furnace and is refined again.Also, the refining can carry out in a nitrogen atmosphere, and the pressure of nitrogen can
Think 1-2 normal atmospheric pressure, and can be dusted using nitrogen and (spray into refining agent) in refining, it can after dusting
To form protective layer on the surface of alloy, alloy oxidation is prevented.The pulvis used that dusts can be essence commonly used in the art
Agent is refined, the usage amount of the refining agent can be the 1-2% of the molten aluminium alloy total weight refined.And stop when standing
Spray into nitrogen and refining agent.That is, the step of refining, can include：The molten aluminium alloy that melting is obtained is in 735-
745 DEG C refine 10-20 minutes, nitrogen and refining agent are sprayed into refining, the pressure of nitrogen is 1-2 atmospheric pressures, refining agent
Usage amount is the 1-2% of the molten aluminium alloy total weight refined, then stops spraying into nitrogen and refining agent, and in 735-
745 DEG C stand 25-35 minutes, the molten aluminium alloy after being refined.
Specific embodiment according to the present invention, it is preferable that, can be to essence after refining in above-mentioned manufacturing step
It refines obtained molten aluminium alloy to be filtered, to remove the oxide in melt, slag inclusion etc., then be cast again.In addition,
It is described to cast the casting technique that this field routine may be employed in the present invention.Also, the ingot casting that the present invention is obtained for casting
Specification is not specially limited, and conventional adjustment can be carried out according to the size for the structural member product to be manufactured.
In addition, present invention also provides a kind of bearing special metals slide construction parts, it is special using above-mentioned bearing
Alloy material (i.e. above-mentioned ingot casting) is slided to roll by homogenizing annealing, hot rolling, quenching, stretching, timeliness, smart car and Constant Linear Velocity
The processing step of pressure and manufacture.
In above-mentioned bearing special metals slide construction part, it is preferable that the step of homogenizing annealing includes：It will be above-mentioned
Bearing it is special slide alloy material (i.e. above-mentioned ingot casting) 555-565 DEG C keep the temperature 8-10 it is small when progress homogenizing annealing at
Reason obtains homogenizing annealing treated ingot casting.Heat treatment mode in offline stove may be employed in homogenizing annealing processing, can be with
It is carried out in heat-treatment furnace (such as roller hearth furnace).The resistance of deformation for the alloy material that the application uses is big, and the special conjunction of bearing
Golden slide construction part requires height for its mechanical performance index, and after using the processing of above-mentioned homogenizing annealing, alloy structure occurs
Following variation：(1) microsegregation disappears；(2)Mg2Si phases are dissolved in α (Al), and uneven eutectic disappears；(3)β(Al9Fe2Si2)
Opposite α (Al12Fe3Si2) phase transition, and Copper component particle is refined, so that the structural member that manufacture obtains has preferable power
Learn performance.
In above-mentioned bearing special metals slide construction part, it is preferable that the step of hot rolling includes：By homogenizing annealing
Treated, and ingot casting is heated to 500-520 DEG C, then carries out hot rolling (using hot-rolling mill), the temperature of roll is 20-30 DEG C, roll
Roughness is less than 12.5 μm, mill speed is more than 1m/s, roll-force is less than 800 tons, rolling pass be 15-20 passages,
Total reduction is more than 10%, obtains hot rolled plate.Wherein, by homogenizing annealing, treated that ingot casting is heated to 500-520 DEG C,
It may be employed electric furnace, the advantages of this mode of heating is：(1) heating time is short；(2) temperature precise control, error do not surpass
Cross ± 3 DEG C.It is highly preferred that carry out the specification of the hot rolled plate obtained after above-mentioned hot rolling as thickness 30-250mm, width 2.5m with
Under, below length 5m.
In above-mentioned bearing special metals slide construction part, it is preferable that the step of quenching includes：It will be obtained after hot rolling
Hot rolled plate be heated to 500-540 DEG C, then make the temperature of plate with 10-30 DEG C of water spray with the gait of march of 8-12cm/s
Degree drops to less than 50 DEG C, obtains quenched plate.The quenching sensitive of the alloy material of the application is high, its hot rolled plate is added
Heat is quenched again after carrying out cure process to 500-540 DEG C, and the structural member that manufacture obtains can be made to have preferable mechanicalness
Energy.
In above-mentioned bearing special metals slide construction part, it is preferable that the step of stretching includes：By quenched plate
Material is stretched under conditions of pass deformation rate is stretched as 1-1.5% and (drawing die may be employed to be stretched), with removal
Stress, the plate after being stretched.It is highly preferred that interior when 3 is small after quenching stretched.
In above-mentioned bearing special metals slide construction part, it is preferable that the step of timeliness includes：By the plate after stretching
Then material carries out two-stage time effect processing when 170-180 DEG C of heat preservation 5 ± 0.5 is small again when 170-180 DEG C of heat preservation 5 ± 0.5 is small,
Obtain the plate after ageing treatment.Handled by above-mentioned homogenizing annealing heat treatment, stretch processing, two-stage time effect and etc.,
Mechanical performance, machinability and the corrosion resistance of sheet alloy can be improved.
In above-mentioned bearing special metals slide construction part, it is preferable that the step of smart car includes：After ageing treatment
Plate carry out smart car, obtain the section bar after smart car, and make the section bar for spherical crown frame body sectional material, the song of the spherical crown frame body sectional material
Rate radius is below 10m, a diameter of below 5m, and the surrounding of the circular flat of the spherical crown frame body sectional material leaves thickness 5-10mm's
Allowance.
In above-mentioned bearing special metals slide construction part, it is preferable that the step of Constant Linear Velocity rolls includes：By essence
The curved surface (i.e. sliding surface) of spherical crown frame body sectional material after vehicle carries out Constant Linear Velocity rolling and (rolling depression cutter may be employed and carry out Constant Linear Velocity rolling
Pressure), and control Constant Linear Velocity rolling interference volume be 0.2-0.5mm, rolling speed be 700-900 turn/min, amount of feeding 0.02-
0.05mm makes the roughness Ra of the curved surface after rolling obtain bearing special metals slide construction part for less than 1.0 μm.Wait linear speeds
" stainless steel " is presented in curved surface after degree rolling, and surface color and mechanical property are equal and mirror face stainless steel is essentially identical, such line
Speed rolling technology is closed and hardens Curved surface metal layer, reduces surface roughness, improves case hardness, wearability, resistance to
Corrosivity and anti-fatigue performance.
Specific embodiment according to the present invention, it is preferable that bearing special metals slide construction part provided by the invention
Yield strength is more than 280MPa, the roughness Ra of the sliding surface (i.e. the curved surface of spherical crown frame body sectional material) of the structural member be 1.0 μm with
Under.
On the other hand, the present invention also provides a kind of manufacturing method of bearing special metals slide construction part, can be
The manufacturing method of above-mentioned bearing special metals slide construction part, this method comprise the following steps：
(1) dispensing：By weight percentage, according to silicon 0.9-1.5%, iron≤0.50%, copper≤0.10%, manganese 0.60-
1.1%th, magnesium 0.8-1.3%, chromium≤0.25%, zinc≤0.20%, titanium≤0.1% and aluminium surplus into being grouped into selection and claim
Measure raw material；
(2) melting：Raw material after selection and weighing are subjected to melting at 740-760 DEG C, obtain molten aluminium alloy；
(3) refine：The molten aluminium alloy that melting obtains is refined 10-20 minutes at 735-745 DEG C, then in 735-745
DEG C stand 25-35 minutes, the molten aluminium alloy after being refined；
(4) cast：By the molten aluminium alloy casting after refining, ingot casting is obtained；
(5) homogenizing annealing：Ingot casting is subjected to homogenizing annealing processing when 555-565 DEG C of heat preservation 8-10 is small, is obtained
Homogenize the ingot casting after annealing；
(6) hot rolling：By homogenizing annealing, treated that ingot casting is heated to 500-520 DEG C, then carries out hot rolling and (uses hot rolling
Machine), and control roll temperature be 20-30 DEG C, gloss level of roll is less than 12.5 μm, mill speed be more than 1m/s, rolling
Power is less than 800 tons, rolling pass is 15-20 passages, total reduction is more than 10%, obtains hot rolled plate；
(7) quench：Hot rolled plate is heated to 500-540 DEG C, then with the gait of march of 8-12cm/s with 10-30 DEG C
Water spray makes the temperature of plate drop to less than 50 DEG C, obtains quenched plate；
(8) stretch：Quenched plate is being stretched into pass deformation rate as stretched under conditions of 1-1.5% (can be with
Stretched using drawing die), to go de-stress, the plate after being stretched；
(9) timeliness：By the plate after stretching when 170-180 DEG C of heat preservation 5 ± 0.5 is small, then again in 170-180 DEG C of heat preservation
5 ± 0.5 it is small when, carry out two-stage time effect processing, obtain the plate after ageing treatment；
(10) smart car：Plate after ageing treatment is subjected to smart car, the section bar after smart car is obtained, and makes the section bar be
Spherical crown frame body sectional material, the radius of curvature of the spherical crown frame body sectional material are below 10m, a diameter of below 5m, and the spherical crown frame body sectional material
The surrounding of circular flat leaves the allowance of thickness 5-10mm；
(11) Constant Linear Velocity rolls：The curved surface (i.e. sliding surface) for the spherical crown frame body sectional material that smart car is obtained carries out Constant Linear Velocity rolling
Pressure (may be employed rolling depression cutter and carry out Constant Linear Velocity rolling), and Constant Linear Velocity rolling interference volume is controlled to be 0.2-0.5mm, roll speed
It spends and turns/min, amount of feeding 0.02-0.05mm for 700-900, the roughness Ra for making the curved surface after Constant Linear Velocity rolling is 1.0 μm
Hereinafter, the bearing special metals slide construction part is obtained.
In above-mentioned manufacturing method, it is preferable that the raw material chosen and weighed include fine aluminium block, ferro-aluminum block, aluminum bronze block, aluminium
Manganese block, magnalium block, aluminium chromium block, aluminium spelter and aluminium titanium block, and these metal derbies or alloy block can be the ingot casting of fritter.
It is of the invention not limited for the time of melting or speed in above-mentioned manufacturing method, those skilled in the art
Conventional adjusting can be carried out according to the different of the smelting furnace of use, as long as making the raw material fusing uniform.
In above-mentioned manufacturing method, after melting, can to molten aluminium alloy stir several times so that molten aluminium alloy more
(not to be limited for the speed and time of stirring, conventional adjusting can be carried out by those skilled in the art) uniformly, then
It is transferred in standing furnace and is refined again.Also, the refining can carry out in a nitrogen atmosphere, and the pressure of nitrogen can be 1-2
A normal atmospheric pressure, and can be dusted using nitrogen and (spray into refining agent) in refining, it can closed after dusting
The surface of gold forms protective layer, prevents alloy oxidation.The pulvis used that dusts can be refining agent commonly used in the art, should
The usage amount of refining agent can be the 1-2% of the molten aluminium alloy total weight refined.And stop spraying into nitrogen when standing
Gas and refining agent.That is, the step of refining, can include：The molten aluminium alloy that melting is obtained is at 735-745 DEG C
Refining 10-20 minute, sprays into nitrogen and refining agent in refining, and the pressure of nitrogen is 1-2 atmospheric pressures, the usage amount of refining agent
Then 1-2% for the molten aluminium alloy total weight refined stops spraying into nitrogen and refining agent, and quiet at 735-745 DEG C
It puts 25-35 minutes, the molten aluminium alloy after being refined.
In above-mentioned manufacturing method, after refining, the molten aluminium alloy that can be obtained to refining is filtered, to remove
Oxide, slag inclusion in melt etc., are then cast again.In addition, in the present invention, it is normal that this field may be employed in the casting
The casting technique of rule.Also, the specification of ingot casting that the present invention is obtained for casting is not specially limited, can be according to being manufactured
The size of structural member product carry out conventional adjustment.
In above-mentioned manufacturing method, heat treatment mode in offline stove may be employed in homogenizing annealing processing, can be with
It is carried out in heat-treatment furnace (such as roller hearth furnace).
In above-mentioned manufacturing method, it is preferable that by homogenizing annealing, treated that ingot casting is heated to 500-520 DEG C to adopt
Use electric furnace.
In above-mentioned manufacturing method, it is preferable that the specification of the hot rolled plate be thickness 30-250mm, width 2.5m with
Under, below length 5m.
In above-mentioned manufacturing method, it is preferable that interior when 3 is small after quenching to be stretched.
The present invention provides a kind of special slip alloy material (trades mark of bearing：ZHH-T651 a kind of), bearing special metals
Slide construction part and its manufacturing method.Bearing special metals slide construction part provided by the invention, which uses, has special component composition
Alloy material through Overheating Treatment, stretch go de-stress, two-stage time effect and the rolling of sliding surface Constant Linear Velocity processing and etc. manufacture
Obtain, the structural member (i.e. identical material integral structure component) which is integrated, mechanical property, mechanical performance, wearability,
It slides surface roughness, corrosion resistance and rubs with the slip of polytetrafluoroethylene (PTFE) slide plate or modified ultra-high molecular weight polyethylene slide plate etc.
Coefficient is wiped, is superior to national Its Relevant Technology Standards requirement.The surrender of bearing special metals slide construction part provided by the invention is strong
It spends for more than 280MPa, the roughness Ra of the sliding surface (i.e. the curved surface of spherical crown frame body sectional material) of the structural member is less than 1.0 μm, is had
There are the performances such as higher intensity, toughness and corrosion resistance.
The present invention solves a series of problems, such as long-standing problem bearing sliding structural member is not integrated and is not corrosion-resistant, this hair
The bright inadequate natural endowment evaded chromium plating layered scheme, wrapped up these three schemes of stainless steel plate scheme and aluminium alloy anode oxide layered scheme
Technologically advanced with the security hidden trouble day after tomorrow, safe to use, corrosion resistance protrudes, and service life was up to 50 years or more, and cost is only
Three schemes slightly above used at present have higher economic benefit and social benefit, and there is no problem of environmental pollutions.
Bearing special metals slide construction part provided by the invention can put in air, containing chlorine, fluorine industrial environment in and seawater
Middle use, and be suitable as with polyfluortetraethylene plate or/and super high molecular weight gathering in all kinds of bearings such as railway, highway and house
Vinyl plate etc. is to the slide construction part of mill, and therefore, which is with a wide range of applications.
Description of the drawings
Fig. 1 is the structure diagram of the bearing special metals slide construction part provided of the present invention.
Specific embodiment
In order to which technical characteristic, purpose and the advantageous effect to the present invention are more clearly understood, now to the skill of the present invention
Art scheme carry out it is described further below, but it is not intended that the present invention can practical range restriction.
Embodiment 1
A kind of bearing special metals slide construction part is present embodiments provided, manufactures to obtain according to following steps：
(1) dispensing：By weight percentage, according to silicon 0.9%, iron 0.50%, copper 0.10%, manganese 0.6%, magnesium 0.8%,
Chromium 0.25%, zinc 0.20%, titanium 0.1% and aluminium surplus into being grouped into selection and weigh the fine aluminium block, ferro-aluminum block, aluminium of fritter
Copper billet, aluminium manganese block, magnalium block, aluminium chromium block, aluminium spelter and aluminium titanium block；
(2) melting：Raw material after selection and weighing are sent into smelting furnace and carry out melting at 740 DEG C, obtain aluminium alloy
Melt afterwards, is stirred more than twice so that molten aluminium alloy is more uniformly distributed (speed and time for stirring molten aluminium alloy
It is not limited, conventional adjusting can be carried out by those skilled in the art)；
(3) refine：The molten aluminium alloy that melting is obtained is transferred in standing furnace, refining agent is sprayed into using nitrogen, at 735 DEG C
And refined 15 minutes under nitrogen atmosphere, the pressure of nitrogen is 1.5 normal atmospheric pressures, stops spraying into nitrogen and refining agent,
Then 30 minutes are stood at 735 DEG C, the molten aluminium alloy after being refined；
Wherein, used refining agent is the JLAJ1 of Chengdu Curie's metallurgical material Co., Ltd production；The refining agent makes
Dosage is the 1% of the molten aluminium alloy total weight refine being transferred in standing furnace；
After refining, be filtered to refining obtained molten aluminium alloy (such as can be in standing furnace fire door and mold
Between filter device is set), to remove the oxide in melt, slag inclusion etc., then cast again；
(4) cast：By the molten aluminium alloy casting after refining, ingot casting is obtained；
(5) homogenizing annealing：Ingot casting is transferred in roller hearth furnace and carries out homogenizing annealing processing when 555 DEG C of heat preservations 9 are small,
Obtain homogenizing annealing treated ingot casting；
(6) hot rolling：Using electric furnace, by homogenizing annealing, treated that ingot casting is heated to 500 DEG C, then using hot rolling
Machine carry out hot rolling, and control roll temperature be 23 DEG C, gloss level of roll is 10 μm, mill speed 1m/s, roll-force 700
Ton, rolling pass are 18 passages, total reduction 45%, obtain hot rolled plate, and the specification of the hot rolled plate is thickness 50mm, wide
Spend 2.5m, length 5m；
(7) quench：Hot rolled plate is heated to 540 DEG C, is then made with 15 DEG C of water spray of the gait of march of 10cm/s
The temperature of plate drops to less than 50 DEG C, obtains quenched plate；
(8) stretch：It is interior when 3 is small after quenching, by quenched plate stretch pass deformation rate under conditions of 1% into
Row stretches (drawing die may be employed to be stretched), to go de-stress, the plate after being stretched；
(9) timeliness：By the plate after stretching when 170 DEG C of heat preservations 5 are small, then carried out double when 170 DEG C of heat preservations 5 are small again
Grade ageing treatment, obtains the plate after ageing treatment；
(10) smart car：Plate after ageing treatment is subjected to smart car, the section bar after smart car is obtained, and makes the section bar be
Spherical crown frame body sectional material, the radius of curvature of the spherical crown frame body sectional material are 0.7m, a diameter of 0.4m, and the circular flat of the spherical crown frame body sectional material
The surrounding in face leaves the allowance of thickness 5mm；
(11) Constant Linear Velocity rolls：The curved surface (i.e. sliding surface) for the spherical crown frame body sectional material that smart car is obtained carries out Constant Linear Velocity rolling
Pressure (may be employed rolling depression cutter carry out Constant Linear Velocity rolling), and control that Constant Linear Velocity rolling interference volume is 0.3mm, rolling speed is
700 turns/min, amount of feeding 0.02mm, the roughness Ra for making the curved surface after Constant Linear Velocity rolling is less than 1.0 μm, is obtained described
Bearing special metals slide construction part, the structure of the structural member is as shown in Figure 1.
After tested, the yield strength of the bearing special metals slide construction part is 280MPa, and the roughness Ra of sliding surface is
0.8μm.Using the bearing special metals slide construction part and modified ultra-high molecular weight polyethylene slide plate 45MPa pressure,
Frictional experiment is carried out under conditions of the sliding speed and lubrication of 15mm/s, result is：The modified ultra-high molecular weight polyethylene is slided
The wear rate of plate is not more than 15 μm/km.Using the bearing special metals slide construction part carry out 1000 it is small when standard salt mist experiment,
As a result it is：The structural member is corrosion-free (N grades).The bearing special metals slide construction part is used to apply in design load as 5000kN
Bearing in, after 2,000,000 pressure fatigues are carried out, which stands intact.
Embodiment 2
A kind of bearing special metals slide construction part is present embodiments provided, manufactures to obtain according to following steps：
(1) dispensing：By weight percentage, according to silicon 1.5%, iron 0.30%, copper 0.08%, manganese 1.1%, magnesium 1.3%,
Chromium 0.2%, zinc 0.15%, titanium 0.08% and aluminium surplus into being grouped into selection and weigh the fine aluminium block, ferro-aluminum block, aluminium of fritter
Copper billet, aluminium manganese block, magnalium block, aluminium chromium block, aluminium spelter and aluminium titanium block；
(2) melting：Raw material after selection and weighing are sent into smelting furnace and carry out melting at 760 DEG C, obtain aluminium alloy
Melt afterwards, is stirred more than twice so that molten aluminium alloy is more uniformly distributed (speed and time for stirring molten aluminium alloy
It is not limited, conventional adjusting can be carried out by those skilled in the art)；
(3) refine：The molten aluminium alloy that melting is obtained is transferred in standing furnace, refining agent is sprayed into using nitrogen, at 745 DEG C
And refined 10 minutes under nitrogen atmosphere, the pressure of nitrogen is 2 normal atmospheric pressures, stops spraying into nitrogen and refining agent, so
25 minutes are stood at 745 DEG C afterwards, the molten aluminium alloy after being refined；
Wherein, used refining agent is the JLAJ1 of Chengdu Curie's metallurgical material Co., Ltd production；The refining agent makes
Dosage is the 1.5% of the molten aluminium alloy total weight refine being transferred in standing furnace；
After refining, be filtered to refining obtained molten aluminium alloy (such as can be in standing furnace fire door and mold
Between filter device is set), to remove the oxide in melt, slag inclusion etc., then cast again；
(4) cast：By the molten aluminium alloy casting after refining, ingot casting is obtained；
(5) homogenizing annealing：Ingot casting is transferred in roller hearth furnace and carries out homogenizing annealing processing when 565 DEG C of heat preservations 8 are small,
Obtain homogenizing annealing treated ingot casting；
(6) hot rolling：Using electric furnace, by homogenizing annealing, treated that ingot casting is heated to 510 DEG C, then using hot rolling
Machine carry out hot rolling, and control roll temperature be 27 DEG C, gloss level of roll is 12 μm, mill speed 1.5m/s, roll-force are
750 tons, rolling pass be 16 passages, total reduction 40%, obtain hot rolled plate, the specification of the hot rolled plate is thickness
150mm, width 2m, length 3m；
(7) quench：Hot rolled plate is heated to 510 DEG C, plate is then made with 10 DEG C of water spray of the gait of march of 8cm/s
The temperature of material drops to less than 50 DEG C, obtains quenched plate；
(8) stretch：It is interior when 3 is small after quenching, by quenched plate under conditions of pass deformation rate is stretched as 1.5%
It is stretched and (drawing die may be employed to be stretched), to go de-stress, the plate after being stretched；
(9) timeliness：By the plate after stretching when 175 DEG C of heat preservations 4.5 are small, then again when 175 DEG C of heat preservations 4.5 are small, into
The processing of row two-stage time effect, obtains the plate after ageing treatment；
(10) smart car：Plate after ageing treatment is subjected to smart car, the section bar after smart car is obtained, and makes the section bar be
Spherical crown frame body sectional material, the radius of curvature of the spherical crown frame body sectional material are 9m, a diameter of 3m, and the circular flat of the spherical crown frame body sectional material
Surrounding leaves the allowance of thickness 7mm；
(11) Constant Linear Velocity rolls：The curved surface (i.e. sliding surface) for the spherical crown frame body sectional material that smart car is obtained carries out Constant Linear Velocity rolling
Pressure (may be employed rolling depression cutter carry out Constant Linear Velocity rolling), and control that Constant Linear Velocity rolling interference volume is 0.2mm, rolling speed is
900 turns/min, amount of feeding 0.05mm, the roughness Ra for making the curved surface after Constant Linear Velocity rolling is less than 1.0 μm, is obtained described
Bearing special metals slide construction part, the structure of the structural member is as shown in Figure 1.
After tested, the yield strength of the bearing special metals slide construction part is 290MPa, and the roughness Ra of sliding surface is
0.9μm。
Embodiment 3
A kind of bearing special metals slide construction part is present embodiments provided, manufactures to obtain according to following steps：
(1) dispensing：By weight percentage, according to silicon 1.2%, iron 0.3%, copper 0.06%, manganese 0.8%, magnesium 1.0%,
Chromium 0.15%, zinc 0.1%, titanium 0.07% and aluminium surplus into being grouped into selection and weigh the fine aluminium block, ferro-aluminum block, aluminium of fritter
Copper billet, aluminium manganese block, magnalium block, aluminium chromium block, aluminium spelter and aluminium titanium block；
(2) melting：Raw material after selection and weighing are sent into smelting furnace and carry out melting at 750 DEG C, obtain aluminium alloy
Melt afterwards, is stirred more than twice so that molten aluminium alloy is more uniformly distributed (speed and time for stirring molten aluminium alloy
It is not limited, conventional adjusting can be carried out by those skilled in the art)；
(3) refine：The molten aluminium alloy that melting is obtained is transferred in standing furnace, refining agent is sprayed into using nitrogen, at 740 DEG C
And refined 20 minutes under nitrogen atmosphere, the pressure of nitrogen is 1.5 normal atmospheric pressures, stops spraying into nitrogen and refining agent,
Then 35 minutes are stood at 740 DEG C, the molten aluminium alloy after being refined；
Wherein, used refining agent is the JLAJ1 of Chengdu Curie's metallurgical material Co., Ltd production；The refining agent makes
Dosage is the 1% of the molten aluminium alloy total weight refine being transferred in standing furnace；
After refining, be filtered to refining obtained molten aluminium alloy (such as can be in standing furnace fire door and mold
Between filter device is set), to remove the oxide in melt, slag inclusion etc., then cast again；
(4) cast：By the molten aluminium alloy casting after refining, ingot casting is obtained；
(5) homogenizing annealing：Ingot casting is transferred in roller hearth furnace and is carried out when 560 DEG C of heat preservations 10 are small at homogenizing annealing
Reason obtains homogenizing annealing treated ingot casting；
(6) hot rolling：Using electric furnace, by homogenizing annealing, treated that ingot casting is heated to 520 DEG C, then using hot rolling
Machine carry out hot rolling, and control roll temperature be 25 DEG C, gloss level of roll is 9 μm, mill speed 2m/s, roll-force 650
Ton, rolling pass are 20 passages, total reduction 50%, obtain hot rolled plate, and the specification of the hot rolled plate is thickness 250mm,
Width 1.5m, length 2.5m；
(7) quench：Hot rolled plate is heated to 530 DEG C, is then made with 20 DEG C of water spray of the gait of march of 12cm/s
The temperature of plate drops to less than 50 DEG C, obtains quenched plate；
(8) stretch：It is interior when 3 is small after quenching, by quenched plate under conditions of pass deformation rate is stretched as 1.2%
It is stretched and (drawing die may be employed to be stretched), to go de-stress, the plate after being stretched；
(9) timeliness：By the plate after stretching when 180 DEG C of heat preservations 5.5 are small, then again when 180 DEG C of heat preservations 5.5 are small, into
The processing of row two-stage time effect, obtains the plate after ageing treatment；
(10) smart car：Plate after ageing treatment is subjected to smart car, the section bar after smart car is obtained, and makes the section bar be
Spherical crown frame body sectional material, the radius of curvature of the spherical crown frame body sectional material are 10m, a diameter of 5m, and the circular flat of the spherical crown frame body sectional material
Surrounding leave the allowance of thickness 10mm；
(11) Constant Linear Velocity rolls：The curved surface (i.e. sliding surface) for the spherical crown frame body sectional material that smart car is obtained carries out Constant Linear Velocity rolling
Pressure (may be employed rolling depression cutter carry out Constant Linear Velocity rolling), and control that Constant Linear Velocity rolling interference volume is 0.4mm, rolling speed is
800 turns/min, amount of feeding 0.03mm make the roughness Ra of the curved surface after rolling that it is special to obtain the bearing for less than 1.0 μm
With alloy slide construction part, the structure of the structural member is as shown in Figure 1.
After tested, the yield strength of the bearing special metals slide construction part is 300MPa, and the roughness Ra of sliding surface is
0.8μm。
Claims (8)
1. a kind of bearing special metals slide construction part uses the special alloy material that slides of bearing to pass through homogenizing annealing, heat
Roll, quench, stretching, the processing step of timeliness, smart car and Constant Linear Velocity rolling and manufacture；
The bearing special metals slide construction part can put in air, containing chlorine, fluorine industrial environment in and seawater in make
With, and be suitable as in all kinds of bearings in railway, highway and house and polyfluortetraethylene plate or/and ultra-high molecular weight polyethylene
Plate is to the slide construction part of mill；
Wherein, by the bearing it is special slide alloy material total weight on the basis of, into be grouped into including：Silicon 0.9-1.5%,
Iron≤0.5%, copper≤0.1%, manganese 0.6-1.1%, magnesium 0.8-1.3%, chromium≤0.25%, zinc≤0.2%, titanium≤0.1% with
And aluminium surplus；
The special slip alloy material of bearing, through the following steps that manufacture obtained：According into being grouped into selection and weigh
Then raw material carry out melting, refining and casting, ingot casting are prepared, be the special slip alloy material of bearing；
The step of melting, includes：Raw material carry out melting at 740-760 DEG C after choosing and weighing, and obtain aluminium alloy and melt
Liquid；
The step of refining, includes：The molten aluminium alloy that melting obtains at 735-745 DEG C is refined 10-20 minutes, is being refined
When spray into nitrogen and refining agent, the pressure of nitrogen is 1-2 normal atmospheric pressure, and the usage amount of refining agent is the aluminium refined
Then the 1-2% of alloy molten solution total weight stops spraying into nitrogen and refining agent, and stands 25-35 minutes at 735-745 DEG C, obtain
Molten aluminium alloy after to refining；The step of homogenizing annealing, includes：The special alloy material that slides of the bearing is existed
555-565 DEG C of heat preservation 8-10 carries out homogenizing annealing processing when small, obtains homogenizing annealing treated ingot casting；
The step of hot rolling, includes：By homogenizing annealing, treated that ingot casting is heated to 500-520 DEG C, then carries out hot rolling,
The temperature of roll is 20-30 DEG C, gloss level of roll is less than 12.5 μm, mill speed is more than 1m/s, roll-force be 800 tons with
Under, rolling pass be 15-20 passages, total reduction is more than 10%, obtain hot rolled plate；
The step of timeliness, includes：By the plate after stretching when 170-180 DEG C of heat preservation 5 ± 0.5 is small, then again in 170-
When 180 DEG C of heat preservations 5 ± 0.5 are small, two-stage time effect processing is carried out, obtains the plate after ageing treatment.
2. bearing special metals slide construction part according to claim 1, wherein, the specification of the hot rolled plate is thickness
30-250mm, below width 2.5m, below length 5m.
3. bearing special metals slide construction part according to claim 1, wherein, the step of quenching, includes：By heat
The hot rolled plate obtained after rolling is heated to 500-540 DEG C, is then made with the gait of march of 8-12cm/s with 10-30 DEG C of water spray
The temperature of plate drops to less than 50 DEG C, obtains quenched plate.
4. bearing special metals slide construction part according to claim 1, wherein, the step of stretching, includes：It will quench
Plate after fire is stretched under conditions of pass deformation rate is stretched as 1-1.5%, to go de-stress, the plate after being stretched
Material.
5. bearing special metals slide construction part according to claim 4, wherein, it is interior when 3 is small after quenching to be stretched.
6. bearing special metals slide construction part according to claim 1, wherein, the step of smart car, includes：By when
Effect treated plate carries out smart car, obtains the section bar after smart car, and makes the section bar for spherical crown frame body sectional material, the ball-crown body
The radius of curvature of section bar is below 10m, a diameter of below 5m, and the surrounding of the circular flat of the spherical crown frame body sectional material leaves thickness
The allowance of 5-10mm；
The step of Constant Linear Velocity rolling, includes：The curved surface of spherical crown frame body sectional material after smart car is subjected to Constant Linear Velocity rolling, and
It is 0.2-0.5mm to control Constant Linear Velocity rolling interference volume, rolling speed is that 700-900 turns/min, amount of feeding 0.02-
0.05mm makes the roughness Ra of the curved surface after rolling obtain bearing special metals slide construction part for less than 1.0 μm.
7. bearing special metals slide construction part according to claim 1, yield strength is more than 280MPa, is slided
The roughness Ra in face is less than 1.0 μm.
8. a kind of manufacturing method of bearing special metals slide construction part, comprises the following steps：
(1) dispensing：By weight percentage, according to silicon 0.9-1.5%, iron≤0.50%, copper≤0.10%, manganese 0.60-
1.1%th, magnesium 0.8-1.3%, chromium≤0.25%, zinc≤0.20%, titanium≤0.1% and aluminium surplus into being grouped into selection and claim
Measure raw material；
(2) melting：Raw material after selection and weighing are subjected to melting at 740-760 DEG C, obtain molten aluminium alloy；
(3) refine：The molten aluminium alloy that melting obtains is refined 10-20 minutes at 735-745 DEG C, it is then quiet at 735-745 DEG C
It puts 25-35 minutes, the molten aluminium alloy after being refined；
(4) cast：By the molten aluminium alloy casting after refining, ingot casting is obtained；
(5) homogenizing annealing：Ingot casting is subjected to homogenizing annealing processing when 555-565 DEG C of heat preservation 8-10 is small, is homogenized
Ingot casting after annealing；
(6) hot rolling：By homogenizing annealing, treated that ingot casting is heated to 500-520 DEG C, then carries out hot rolling, and controls roll
Temperature is 20-30 DEG C, gloss level of roll is less than 12.5 μm, mill speed is more than 1m/s, roll-force is less than 800 tons, rolls
Passage processed is 15-20 passages, total reduction is more than 10%, obtains hot rolled plate；
(7) quench：Hot rolled plate is heated to 500-540 DEG C, is then sprayed with the gait of march of 8-12cm/s with 10-30 DEG C of water
Leaching makes the temperature of plate drop to less than 50 DEG C, obtains quenched plate；
(8) stretch：Quenched plate is stretched under conditions of pass deformation rate is stretched as 1-1.5%, it should with removal
Power, the plate after being stretched；
(9) timeliness：By the plate after stretching 170-180 DEG C heat preservation 5 ± 0.5 it is small when, then again 170-180 DEG C keep the temperature 5 ±
0.5 it is small when, carry out two-stage time effect processing, obtain the plate after ageing treatment；
(10) smart car：Plate after ageing treatment is subjected to smart car, obtains the section bar after smart car, and the section bar is made to be spherical crown
Frame body sectional material, the radius of curvature of the spherical crown frame body sectional material are below 10m, a diameter of below 5m, and the circle of the spherical crown frame body sectional material
The surrounding of plane leaves the allowance of thickness 5-10mm；
(11) Constant Linear Velocity rolls：The curved surface for the spherical crown frame body sectional material that smart car is obtained carries out Constant Linear Velocity rolling, and controls rolling
Interference volume is 0.2-0.5mm, rolling speed is that 700-900 turns/min, amount of feeding 0.02-0.05mm, makes the curved surface after rolling
Roughness Ra for less than 1.0 μm, obtain described in bearing special metals slide construction part.
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| CN108265211B (en) * | 2018-02-09 | 2019-11-08 | 中国铁路设计集团有限公司 | The aluminium alloy of high-wearing feature and its spherical crown being prepared and the spherical crown preparation method |
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| CN108951876A (en) * | 2018-08-24 | 2018-12-07 | 张惠奇 | A kind of corrosion resisting alloy spherical bearing |
| CN111534728A (en) * | 2020-05-19 | 2020-08-14 | 凯米特新材料科技有限公司 | Ultra-light aluminum alloy section for producing high-strength bolt and nut and preparation method thereof |
| CN113751970B (en) * | 2021-09-23 | 2023-06-09 | 中裕铁信交通科技股份有限公司 | Sphere processing technology |
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