CN105689723A - Automobile steering-gear cylinder barrel - Google Patents
Automobile steering-gear cylinder barrel Download PDFInfo
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- CN105689723A CN105689723A CN201610092814.1A CN201610092814A CN105689723A CN 105689723 A CN105689723 A CN 105689723A CN 201610092814 A CN201610092814 A CN 201610092814A CN 105689723 A CN105689723 A CN 105689723A
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- automobile steering
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 74
- 239000010959 steel Substances 0.000 claims abstract description 74
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000000843 powder Substances 0.000 claims abstract description 58
- 239000000463 material Substances 0.000 claims abstract description 31
- 239000011230 binding agent Substances 0.000 claims abstract description 29
- 238000010791 quenching Methods 0.000 claims abstract description 29
- 230000000171 quenching effect Effects 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 24
- 238000000137 annealing Methods 0.000 claims abstract description 23
- 238000005245 sintering Methods 0.000 claims abstract description 23
- QIJNJJZPYXGIQM-UHFFFAOYSA-N 1lambda4,2lambda4-dimolybdacyclopropa-1,2,3-triene Chemical compound [Mo]=C=[Mo] QIJNJJZPYXGIQM-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910017083 AlN Inorganic materials 0.000 claims abstract description 22
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 claims abstract description 22
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910039444 MoC Inorganic materials 0.000 claims abstract description 22
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 22
- 239000011575 calcium Substances 0.000 claims abstract description 22
- 238000005496 tempering Methods 0.000 claims abstract description 22
- 238000003754 machining Methods 0.000 claims abstract description 16
- 238000005121 nitriding Methods 0.000 claims abstract description 16
- 238000005242 forging Methods 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims abstract description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 42
- 238000000498 ball milling Methods 0.000 claims description 42
- 238000001816 cooling Methods 0.000 claims description 21
- 229910052757 nitrogen Inorganic materials 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 15
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 14
- 239000000853 adhesive Substances 0.000 claims description 14
- 230000001070 adhesive effect Effects 0.000 claims description 14
- 238000000227 grinding Methods 0.000 claims description 14
- 238000009413 insulation Methods 0.000 claims description 14
- 239000011812 mixed powder Substances 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 229910000760 Hardened steel Inorganic materials 0.000 claims description 7
- 238000005275 alloying Methods 0.000 claims description 7
- 229910052786 argon Inorganic materials 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 239000000470 constituent Substances 0.000 claims description 7
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 7
- 238000004886 process control Methods 0.000 claims description 7
- 238000012216 screening Methods 0.000 claims description 7
- 238000010792 warming Methods 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 7
- 239000000956 alloy Substances 0.000 abstract 2
- 229910045601 alloy Inorganic materials 0.000 abstract 2
- 238000002156 mixing Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
-
- B22F1/0003—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/16—Both compacting and sintering in successive or repeated steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/17—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/17—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by forging
- B22F2003/175—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by forging by hot forging, below sintering temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/241—Chemical after-treatment on the surface
- B22F2003/242—Coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/247—Removing material: carving, cleaning, grinding, hobbing, honing, lapping, polishing, milling, shaving, skiving, turning the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/248—Thermal after-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Powder Metallurgy (AREA)
Abstract
Provided is an automobile steering-gear cylinder barrel. The automobile steering-gear cylinder barrel is prepared from steel bond hard alloy raw material powder through the procedures of mixing, pressing and sintering, heating and forging, annealing, machining, quenching, tempering and nitriding. The hard phase of the automobile steering-gear cylinder barrel involves aluminium oxide, molybdenum carbide, aluminium nitride, calcium hexaboride and Co and improves the mechanical property of the material. The components of a steel base binder have high strength, and the strength of steel bond hard alloy is further improved under the action of the hard phase.
Description
Technical field
The present invention relates to a kind of automobile steering device cylinder barrel, belongs to automobile steering device technical field。
Background technology
Although electric steering gear is the development trend of current auto steerer, but fluid-link steering machine still has its Existential Space do not replaced, the area more complicated at some environment, road conditions are poor, and it is complex to process the processing technique turning to machine cylinder barrel at present, and its intensity and service life do not reach requirement。
Summary of the invention
A kind of automobile steering device cylinder barrel, automobile steering device cylinder barrel is mixed by steel bonded carbide material powder, compacting sintering, heats forged, annealing, machining, quenching, tempering, and nitriding operation is prepared from:
Steel bonded carbide material powder includes hard phase and base steel binding agent, is characterised by that its constituent is: hard phase (weight) is by aluminium oxide 10-15 part, molybdenum carbide 5-10 part, aluminium nitride 2 parts, six calcium borides 2 parts, and Co8 part forms；Base steel binding agent (weight) is by C0.1-0.2%, Co4-5%, Ni1-2%, Ga0.8-0.9%, Ce0.5-0.6%, Zn0.1-0.2%, Si0.07-0.08%, La0.04-0.05%, Cd0.02-0.03%, and surplus is Fe composition；The weight ratio of hard phase and base steel binding agent is 1.7,
Wherein in powder mixed processes: weigh aluminium oxide, molybdenum carbide, aluminium nitride, six calcium borides, Co powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 13:1, and abrading-ball is hardened steel ball, Ball-milling Time 34h, applies the high-purity argon gas of more than 99.9%, it is thus achieved that hard phase powder；Weighing base steel adhesive powder, carry out ball milling, Ball-milling Time 26h according to ratio of grinding media to material 18:1, interpolation dehydrated alcohol is process control agent；Hard phase powder after ball milling and base steel adhesive powder are mixed, ball milling 30 hours again, it is thus achieved that steel bonded carbide mixed-powder；
Wherein in compacting sintering operation: the steel bonded carbide mixed-powder of above-mentioned acquisition is dried, screening, it is pressed into the size shape of required product；Pressing pressure is 720MPa；Then carrying out vacuum-sintering, 35 DEG C/min of heating rate carries out insulation 2 hours when being warming up to 1380 DEG C。
Wherein in heats forged operation: initial forging temperature is at 1170 DEG C, and final forging temperature is at 970 DEG C；
Wherein in annealing operation: annealing temperature 830 DEG C, keep 5h, after then cooling to 150 DEG C with the furnace, take out natural cooling in air；
Wherein in machining processes: be machined out according to drawing；
Wherein quenching, in tempering process: the temperature of described Quenching Treatment is 1050-1060 DEG C, the temperature of described temper is 470-480 DEG C。
Nitriding operation: 780 DEG C of nitrogen gesture 0.3% of temperature, is incubated 3h, then raises nitrogen gesture to 0.5%, is incubated 2h, and furnace temperature is down to 700 DEG C afterwards, and nitrogen potential control is 1.1%；Insulation 5h, air cooling is to room temperature afterwards；Finally give automobile steering device cylinder barrel。
Described a kind of automobile steering device cylinder barrel, wherein quenches, in tempering process: the temperature of described Quenching Treatment is 1050 DEG C, and the temperature of described temper is 470 DEG C。
Described a kind of automobile steering device cylinder barrel, wherein quenches, in tempering process: the temperature of described Quenching Treatment is 1060 DEG C, and the temperature of described temper is 480 DEG C。
Described a kind of automobile steering device cylinder barrel, wherein quenches, in tempering process: the temperature of described Quenching Treatment is 1055 DEG C, and the temperature of described temper is 475 DEG C。
Described a kind of automobile engine cylinder barrel, hard phase (weight) is by aluminium oxide 10 parts, molybdenum carbide 5 parts, aluminium nitride 2 parts, six calcium borides 2 parts, and Co8 part forms。
Described a kind of automobile steering device cylinder barrel, hard phase (weight) is by aluminium oxide 15 parts, molybdenum carbide 10 parts, aluminium nitride 2 parts, six calcium borides 2 parts, and Co8 part forms。
Described a kind of automobile steering device cylinder barrel, hard phase (weight) is by aluminium oxide 13 parts, molybdenum carbide 7 parts, aluminium nitride 2 parts, six calcium borides 2 parts, and Co8 part forms。
Described a kind of automobile steering device cylinder barrel, base steel binding agent (weight) is by C0.1%, Co4%, Ni1%, Ga0.8%, Ce0.5%, Zn0.1%, Si0.07%, La0.04%, Cd0.02%, and surplus is Fe composition。
Described a kind of automobile steering device cylinder barrel, base steel binding agent (weight) is by C0.2%, Co5%, Ni2%, Ga0.9%, Ce0.6%, Zn0.2%, Si0.08%, La0.05%, Cd0.03%, and surplus is Fe composition。
Described a kind of automobile steering device cylinder barrel, base steel binding agent (weight) is by C0.15%, Co4.5%, Ni1.5%, Ga0.85%, Ce0.55%, Zn0.15%, Si0.075%, La0.045%, Cd0.025%, and surplus is Fe composition。
Foregoing invention content having the beneficial effects that relative to prior art: 1) hard phase is by aluminium oxide, molybdenum carbide, aluminium nitride, six calcium borides in automobile steering device cylinder barrel of the present invention, and Co composition improves the mechanical performance of material；2) composition of base steel binding agent has higher-strength, then under the effect of hard phase, steel bonded carbide intensity obtains further raising, and 3) mixed by material powder, compacting sintering, heats forged, annealing, machining, quenching, tempering process makes manufacturing process more simple, reduces cost；4) nitriding operation improves case hardness and the intensity of workpiece。
Detailed description of the invention
In order to the technical characteristic of the present invention, purpose and effect are more clearly understood from, now describe the specific embodiment of the present invention in detail。
Embodiment 1
A kind of automobile steering device cylinder barrel, automobile steering device cylinder barrel is mixed by steel bonded carbide material powder, compacting sintering, heats forged, annealing, machining, quenching, tempering, and nitriding operation is prepared from:
Steel bonded carbide material powder includes hard phase and base steel binding agent, is characterised by that its constituent is: hard phase (weight) is by aluminium oxide 10 parts, molybdenum carbide 5 parts, aluminium nitride 2 parts, six calcium borides 2 parts, and Co8 part forms；Base steel binding agent (weight) is by C0.1%, Co4%, Ni1%, Ga0.8%, Ce0.5%, Zn0.1%, Si0.07%, La0.04%, Cd0.02%, and surplus is Fe composition；The weight ratio of hard phase and base steel binding agent is 1.7,
Wherein in powder mixed processes: weigh aluminium oxide, molybdenum carbide, aluminium nitride, six calcium borides, Co powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 13:1, and abrading-ball is hardened steel ball, Ball-milling Time 34h, applies the high-purity argon gas of more than 99.9%, it is thus achieved that hard phase powder；Weighing base steel adhesive powder, carry out ball milling, Ball-milling Time 26h according to ratio of grinding media to material 18:1, interpolation dehydrated alcohol is process control agent；Hard phase powder after ball milling and base steel adhesive powder are mixed, ball milling 30 hours again, it is thus achieved that steel bonded carbide mixed-powder；
Wherein in compacting sintering operation: the steel bonded carbide mixed-powder of above-mentioned acquisition is dried, screening, it is pressed into the size shape of required product；Pressing pressure is 720MPa；Then carrying out vacuum-sintering, 35 DEG C/min of heating rate carries out insulation 2 hours when being warming up to 1380 DEG C。
Wherein in heats forged operation: initial forging temperature is at 1170 DEG C, and final forging temperature is at 970 DEG C；
Wherein in annealing operation: annealing temperature 830 DEG C, keep 5h, after then cooling to 150 DEG C with the furnace, take out natural cooling in air；
Wherein in machining processes: be machined out according to drawing；
Wherein quenching, in tempering process: the temperature of described Quenching Treatment is 1050 DEG C, the temperature of described temper is 470 DEG C。
Nitriding operation: 780 DEG C of nitrogen gesture 0.3% of temperature, is incubated 3h, then raises nitrogen gesture to 0.5%, is incubated 2h, and furnace temperature is down to 700 DEG C afterwards, and nitrogen potential control is 1.1%；Insulation 5h, air cooling is to room temperature afterwards；Finally give automobile steering device cylinder barrel。
Embodiment 2
A kind of automobile steering device cylinder barrel, automobile steering device cylinder barrel is mixed by steel bonded carbide material powder, compacting sintering, heats forged, annealing, machining, quenching, tempering, and nitriding operation is prepared from:
Steel bonded carbide material powder includes hard phase and base steel binding agent, is characterised by that its constituent is: hard phase (weight) is by aluminium oxide 15 parts, molybdenum carbide 10 parts, aluminium nitride 2 parts, six calcium borides 2 parts, and Co8 part forms；Base steel binding agent (weight) is by C0.2%, Co5%, Ni2%, Ga0.9%, Ce0.6%, Zn0.2%, Si0.08%, La0.05%, Cd0.03%, and surplus is Fe composition；The weight ratio of hard phase and base steel binding agent is 1.7,
Wherein in powder mixed processes: weigh aluminium oxide, molybdenum carbide, aluminium nitride, six calcium borides, Co powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 13:1, and abrading-ball is hardened steel ball, Ball-milling Time 34h, applies the high-purity argon gas of more than 99.9%, it is thus achieved that hard phase powder；Weighing base steel adhesive powder, carry out ball milling, Ball-milling Time 26h according to ratio of grinding media to material 18:1, interpolation dehydrated alcohol is process control agent；Hard phase powder after ball milling and base steel adhesive powder are mixed, ball milling 30 hours again, it is thus achieved that steel bonded carbide mixed-powder；
Wherein in compacting sintering operation: the steel bonded carbide mixed-powder of above-mentioned acquisition is dried, screening, it is pressed into the size shape of required product；Pressing pressure is 720MPa；Then carrying out vacuum-sintering, 35 DEG C/min of heating rate carries out insulation 2 hours when being warming up to 1380 DEG C。
Wherein in heats forged operation: initial forging temperature is at 1170 DEG C, and final forging temperature is at 970 DEG C；
Wherein in annealing operation: annealing temperature 830 DEG C, keep 5h, after then cooling to 150 DEG C with the furnace, take out natural cooling in air；
Wherein in machining processes: be machined out according to drawing；
Wherein quenching, in tempering process: the temperature of described Quenching Treatment is 1060 DEG C, the temperature of described temper is 480 DEG C。
Nitriding operation: 780 DEG C of nitrogen gesture 0.3% of temperature, is incubated 3h, then raises nitrogen gesture to 0.5%, is incubated 2h, and furnace temperature is down to 700 DEG C afterwards, and nitrogen potential control is 1.1%；Insulation 5h, air cooling is to room temperature afterwards；Finally give automobile steering device cylinder barrel。
Embodiment 3
A kind of automobile steering device cylinder barrel, automobile steering device cylinder barrel is mixed by steel bonded carbide material powder, compacting sintering, heats forged, annealing, machining, quenching, tempering, and nitriding operation is prepared from:
Steel bonded carbide material powder includes hard phase and base steel binding agent, is characterised by that its constituent is: hard phase (weight) is by aluminium oxide 13 parts, molybdenum carbide 7 parts, aluminium nitride 2 parts, six calcium borides 2 parts, and Co8 part forms；Base steel binding agent (weight) is by C0.15%, Co4.5%, Ni1.5%, Ga0.85%, Ce0.55%, Zn0.15%, Si0.075%, La0.045%, Cd0.025%, and surplus is Fe composition；The weight ratio of hard phase and base steel binding agent is 1.7,
Wherein in powder mixed processes: weigh aluminium oxide, molybdenum carbide, aluminium nitride, six calcium borides, Co powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 13:1, and abrading-ball is hardened steel ball, Ball-milling Time 34h, applies the high-purity argon gas of more than 99.9%, it is thus achieved that hard phase powder；Weighing base steel adhesive powder, carry out ball milling, Ball-milling Time 26h according to ratio of grinding media to material 18:1, interpolation dehydrated alcohol is process control agent；Hard phase powder after ball milling and base steel adhesive powder are mixed, ball milling 30 hours again, it is thus achieved that steel bonded carbide mixed-powder；
Wherein in compacting sintering operation: the steel bonded carbide mixed-powder of above-mentioned acquisition is dried, screening, it is pressed into the size shape of required product；Pressing pressure is 720MPa；Then carrying out vacuum-sintering, 35 DEG C/min of heating rate carries out insulation 2 hours when being warming up to 1380 DEG C。
Wherein in heats forged operation: initial forging temperature is at 1170 DEG C, and final forging temperature is at 970 DEG C；
Wherein in annealing operation: annealing temperature 830 DEG C, keep 5h, after then cooling to 150 DEG C with the furnace, take out natural cooling in air；
Wherein in machining processes: be machined out according to drawing；
Wherein quenching, in tempering process: the temperature of described Quenching Treatment is 1055 DEG C, the temperature of described temper is 475 DEG C。
Nitriding operation: 780 DEG C of nitrogen gesture 0.3% of temperature, is incubated 3h, then raises nitrogen gesture to 0.5%, is incubated 2h, and furnace temperature is down to 700 DEG C afterwards, and nitrogen potential control is 1.1%；Insulation 5h, air cooling is to room temperature afterwards；Finally give automobile steering device cylinder barrel。
Embodiment 4
A kind of automobile steering device cylinder barrel, automobile steering device cylinder barrel is mixed by steel bonded carbide material powder, compacting sintering, heats forged, annealing, machining, quenching, tempering, and nitriding operation is prepared from:
Steel bonded carbide material powder includes hard phase and base steel binding agent, is characterised by that its constituent is: hard phase (weight) is by aluminium oxide 11 parts, molybdenum carbide 6 parts, aluminium nitride 2 parts, six calcium borides 2 parts, and Co8 part forms；Base steel binding agent (weight) is by C0.12%, Co4.2%, Ni1.3%, Ga0.82%, Ce0.51%, Zn0.12%, Si0.074%, La0.043%, Cd0.022%, and surplus is Fe composition；The weight ratio of hard phase and base steel binding agent is 1.7,
Wherein in powder mixed processes: weigh aluminium oxide, molybdenum carbide, aluminium nitride, six calcium borides, Co powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 13:1, and abrading-ball is hardened steel ball, Ball-milling Time 34h, applies the high-purity argon gas of more than 99.9%, it is thus achieved that hard phase powder；Weighing base steel adhesive powder, carry out ball milling, Ball-milling Time 26h according to ratio of grinding media to material 18:1, interpolation dehydrated alcohol is process control agent；Hard phase powder after ball milling and base steel adhesive powder are mixed, ball milling 30 hours again, it is thus achieved that steel bonded carbide mixed-powder；
Wherein in compacting sintering operation: the steel bonded carbide mixed-powder of above-mentioned acquisition is dried, screening, it is pressed into the size shape of required product；Pressing pressure is 720MPa；Then carrying out vacuum-sintering, 35 DEG C/min of heating rate carries out insulation 2 hours when being warming up to 1380 DEG C。
Wherein in heats forged operation: initial forging temperature is at 1170 DEG C, and final forging temperature is at 970 DEG C；
Wherein in annealing operation: annealing temperature 830 DEG C, keep 5h, after then cooling to 150 DEG C with the furnace, take out natural cooling in air；
Wherein in machining processes: be machined out according to drawing；
Wherein quenching, in tempering process: the temperature of described Quenching Treatment is 1053 DEG C, the temperature of described temper is 474 DEG C。
Nitriding operation: 780 DEG C of nitrogen gesture 0.3% of temperature, is incubated 3h, then raises nitrogen gesture to 0.5%, is incubated 2h, and furnace temperature is down to 700 DEG C afterwards, and nitrogen potential control is 1.1%；Insulation 5h, air cooling is to room temperature afterwards；Finally give automobile steering device cylinder barrel。
Embodiment 5
A kind of automobile steering device cylinder barrel, automobile steering device cylinder barrel is mixed by steel bonded carbide material powder, compacting sintering, heats forged, annealing, machining, quenching, tempering, and nitriding operation is prepared from:
Steel bonded carbide material powder includes hard phase and base steel binding agent, is characterised by that its constituent is: hard phase (weight) is by aluminium oxide 14 parts, molybdenum carbide 9 parts, aluminium nitride 2 parts, six calcium borides 2 parts, and Co8 part forms；Base steel binding agent (weight) is by C0.18%, Co4.7%, Ni1.8%, Ga0.89%, Ce0.58%, Zn0.17%, Si0.076%, La0.046%, Cd0.028%, and surplus is Fe composition；The weight ratio of hard phase and base steel binding agent is 1.7,
Wherein in powder mixed processes: weigh aluminium oxide, molybdenum carbide, aluminium nitride, six calcium borides, Co powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 13:1, and abrading-ball is hardened steel ball, Ball-milling Time 34h, applies the high-purity argon gas of more than 99.9%, it is thus achieved that hard phase powder；Weighing base steel adhesive powder, carry out ball milling, Ball-milling Time 26h according to ratio of grinding media to material 18:1, interpolation dehydrated alcohol is process control agent；Hard phase powder after ball milling and base steel adhesive powder are mixed, ball milling 30 hours again, it is thus achieved that steel bonded carbide mixed-powder；
Wherein in compacting sintering operation: the steel bonded carbide mixed-powder of above-mentioned acquisition is dried, screening, it is pressed into the size shape of required product；Pressing pressure is 720MPa；Then carrying out vacuum-sintering, 35 DEG C/min of heating rate carries out insulation 2 hours when being warming up to 1380 DEG C。
Wherein in heats forged operation: initial forging temperature is at 1170 DEG C, and final forging temperature is at 970 DEG C；
Wherein in annealing operation: annealing temperature 830 DEG C, keep 5h, after then cooling to 150 DEG C with the furnace, take out natural cooling in air；
Wherein in machining processes: be machined out according to drawing；
Wherein quenching, in tempering process: the temperature of described Quenching Treatment is 1057 DEG C, the temperature of described temper is 476 DEG C。
Nitriding operation: 780 DEG C of nitrogen gesture 0.3% of temperature, is incubated 3h, then raises nitrogen gesture to 0.5%, is incubated 2h, and furnace temperature is down to 700 DEG C afterwards, and nitrogen potential control is 1.1%；Insulation 5h, air cooling is to room temperature afterwards；Finally give automobile steering device cylinder barrel。
Claims (10)
1. an automobile steering device cylinder barrel, automobile steering device cylinder barrel is mixed by steel bonded carbide material powder, compacting sintering, heats forged, annealing, machining, quenching, tempering, and nitriding operation is prepared from:
Steel bonded carbide material powder includes hard phase and base steel binding agent, is characterised by that its constituent is: hard phase (weight) is by aluminium oxide 10-15 part, molybdenum carbide 5-10 part, aluminium nitride 2 parts, six calcium borides 2 parts, and Co8 part forms；Base steel binding agent (weight) is by C0.1-0.2%, Co4-5%, Ni1-2%, Ga0.8-0.9%, Ce0.5-0.6%, Zn0.1-0.2%, Si0.07-0.08%, La0.04-0.05%, Cd0.02-0.03%, and surplus is Fe composition；The weight ratio of hard phase and base steel binding agent is 1.7,
Wherein in powder mixed processes: weigh aluminium oxide, molybdenum carbide, aluminium nitride, six calcium borides, Co powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 13:1, and abrading-ball is hardened steel ball, Ball-milling Time 34h, applies the high-purity argon gas of more than 99.9%, it is thus achieved that hard phase powder；Weighing base steel adhesive powder, carry out ball milling, Ball-milling Time 26h according to ratio of grinding media to material 18:1, interpolation dehydrated alcohol is process control agent；Hard phase powder after ball milling and base steel adhesive powder are mixed, ball milling 30 hours again, it is thus achieved that steel bonded carbide mixed-powder；
Wherein in compacting sintering operation: the steel bonded carbide mixed-powder of above-mentioned acquisition is dried, screening, it is pressed into the size shape of required product；Pressing pressure is 720MPa；Then carrying out vacuum-sintering, 35 DEG C/min of heating rate carries out insulation 2 hours when being warming up to 1380 DEG C,
Wherein in heats forged operation: initial forging temperature is at 1170 DEG C, and final forging temperature is at 970 DEG C；
Wherein in annealing operation: annealing temperature 830 DEG C, keep 5h, after then cooling to 150 DEG C with the furnace, take out natural cooling in air；
Wherein in machining processes: be machined out according to drawing；
Wherein quenching, in tempering process: the temperature of described Quenching Treatment is 1050-1060 DEG C, the temperature of described temper is 470-480 DEG C,
Nitriding operation: 780 DEG C of nitrogen gesture 0.3% of temperature, is incubated 3h, then raises nitrogen gesture to 0.5%, is incubated 2h, and furnace temperature is down to 700 DEG C afterwards, and nitrogen potential control is 1.1%；Insulation 5h, air cooling is to room temperature afterwards；Finally give automobile steering device cylinder barrel。
2. a kind of automobile steering device cylinder barrel as claimed in claim 1, wherein quenches, in tempering process: the temperature of described Quenching Treatment is 1050 DEG C, and the temperature of described temper is 470 DEG C。
3. a kind of automobile steering device cylinder barrel as described in claim 1-2, wherein quenches, in tempering process: the temperature of described Quenching Treatment is 1060 DEG C, and the temperature of described temper is 480 DEG C。
4. a kind of automobile steering device cylinder barrel as claimed in claim 1, wherein quenches, in tempering process: the temperature of described Quenching Treatment is 1055 DEG C, and the temperature of described temper is 475 DEG C。
5. a kind of automobile engine cylinder barrel as claimed in claim 1, hard phase (weight) is by aluminium oxide 10 parts, molybdenum carbide 5 parts, aluminium nitride 2 parts, six calcium borides 2 parts, and Co8 part forms。
6. a kind of automobile steering device cylinder barrel as claimed in claim 1, hard phase (weight) is by aluminium oxide 15 parts, molybdenum carbide 10 parts, aluminium nitride 2 parts, six calcium borides 2 parts, and Co8 part forms。
7. a kind of automobile steering device cylinder barrel as claimed in claim 1, hard phase (weight) is by aluminium oxide 13 parts, molybdenum carbide 7 parts, aluminium nitride 2 parts, six calcium borides 2 parts, and Co8 part forms。
8. a kind of automobile steering device cylinder barrel as claimed in claim 1, base steel binding agent (weight) is by C0.1%, Co4%, Ni1%, Ga0.8%, Ce0.5%, Zn0.1%, Si0.07%, La0.04%, Cd0.02%, and surplus is Fe composition。
9. a kind of automobile steering device cylinder barrel as claimed in claim 1, base steel binding agent (weight) is by C0.2%, Co5%, Ni2%, Ga0.9%, Ce0.6%, Zn0.2%, Si0.08%, La0.05%, Cd0.03%, and surplus is Fe composition。
10. a kind of automobile steering device cylinder barrel as claimed in claim 1, base steel binding agent (weight) is by C0.15%, Co4.5%, Ni1.5%, Ga0.85%, Ce0.55%, Zn0.15%, Si0.075%, La0.045%, Cd0.025%, and surplus is Fe composition。
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| CN106906400A (en) * | 2017-03-04 | 2017-06-30 | 镇江润博表面工程处理有限公司 | A kind of middle carbon chromium nickel molybdenum WC50 steel bonded carbide Roll Collar and its manufacture method |
| CN108642402A (en) * | 2018-06-04 | 2018-10-12 | 湘潭大学 | Novel aluminum nitride dispersion-strengtherning powder metallurgy aluminium high-speed steel and preparation method thereof |
| CN109848406A (en) * | 2019-02-22 | 2019-06-07 | 北京科技大学 | The method for preparing powder metallurgy and product of titanium composite material |
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