CN105695835A - Corrosion-resistant guide pin - Google Patents
Corrosion-resistant guide pin Download PDFInfo
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- CN105695835A CN105695835A CN201610098176.4A CN201610098176A CN105695835A CN 105695835 A CN105695835 A CN 105695835A CN 201610098176 A CN201610098176 A CN 201610098176A CN 105695835 A CN105695835 A CN 105695835A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/06—Alloys based on chromium
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- 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
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0005—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with at least one oxide and at least one of carbides, nitrides, borides or silicides as the main non-metallic constituents
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- 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
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Abstract
The invention provides a corrosion-resistant guide pin. The corrosion-resistant guide pin is characterized in that the corrosion-resistant guide pin comprises a pin body and a corrosion-resistant coating arranged outside the pin body. The pin body is made of reinforced-phase chromium alloy. According to the corrosion-resistant guide pin, the reinforced phase is composed of aluminum nitride, silicon carbide, nickel oxide, lanthanum boride and lanthanum oxide, so that the mechanical property of a material is improved; and raw material powder is mixed, and the procedures of pressing-sintering, annealing, machining, quenching and tempering are conducted, so that the manufacturing process is simpler, and the cost is reduced.
Description
Technical field
The present invention relates to a kind of corrosion-resistant pilot pin, belongs to pilot pin technical field。
Background technology
Pilot pin inserts in the correcting hole on metal blank, by metal blank correcting, in order to eliminate the site error produced when progressive die is sent into metal blank。Correcting hole surface is of poor quality, its section can produce burr and rough shear fracture, can scratch the correcting surface of pilot pin with pilot pin when coordinating, pilot pin himself hardness and wearability inadequate, not only reduce correcting precision, and the service life of pilot pin can be largely effected on。
Summary of the invention
A kind of corrosion-resistant pilot pin, it is characterized in that, corrosion-resistant pilot pin includes the corrosion-resistant finishes outside shank and shank, shank is by strengthening phase evanohm manufacture, strengthen phase evanohm material powder to include strengthening mutually and evanohm: strengthen phase (weight) by aluminium nitride 10 parts, carborundum 5-6 part, nickel oxide 3-4 part, lanthanum boride 1-2 part, lanthana 1 part composition；Evanohm (weight) is by C8-9%, Zn5-10%, Cu2-3%, Ti0.5-0.6%, Ga0.2-0.3%, La0.06-0.07%, Al0.05-0.06%, Ca0.03-0.04%, and surplus is Cr composition；The weight ratio strengthening phase and evanohm is 0.3,
The enhanced phase evanohm material powder mixing of shank, compacting sintering, annealing, machining, quenching, tempering process is prepared from:
Wherein in powder mixed processes: weigh aluminium nitride, carborundum, nickel oxide, lanthanum boride, lanthanum oxide powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 16:1, and abrading-ball is hardened steel ball, Ball-milling Time 85h, applies the high-purity argon gas of more than 99.9%, it is thus achieved that strengthen phase powder；Weighing aforementioned proportion chromium alloy powder, carry out ball milling alloying, Ball-milling Time 12h according to ratio of grinding media to material 13:1, interpolation dehydrated alcohol is process control agent, it is thus achieved that evanohm micropowder；Phase powder and the mixing of evanohm micropowder, ball milling 23 hours again will be strengthened, it is thus achieved that strengthen phase evanohm mixed-powder；
Wherein in compacting sintering operation: the enhancing phase evanohm mixed-powder of above-mentioned acquisition is dried, screening, it is pressed into the size shape of required product；Then carrying out vacuum-sintering, 18 DEG C/min of heating rate carries out insulation 5-6 hour when being warming up to 1620-1630 DEG C, furnace cooling,
Wherein in annealing operation: annealing temperature 1120 DEG C, keep 6h, after then cooling to 170 DEG C with the furnace, take out natural cooling in air；
Wherein in machining processes: machine according to shank size；
Wherein quenching, in tempering process: the temperature of described Quenching Treatment is 1120 DEG C, described temper is heated to 860 DEG C from room temperature by workpiece, heating rate 35 DEG C/h, be incubated 7 hours, after be cooled to 670 DEG C, rate of temperature fall 32 DEG C/h, it is incubated 7 hours, after be again cooled to 460 DEG C, rate of temperature fall 65 DEG C/h, be incubated 3 hours, rear air cooling is to room temperature
Afterwards shank is carried out spraying corrosion-resistant finishes, obtains final pilot pin。
The corrosion-resistant pilot pin of described one, wherein in compacting sintering operation: the enhancing phase evanohm mixed-powder of above-mentioned acquisition is dried, screening, it is pressed into the size shape of required product；Then carrying out vacuum-sintering, 18 DEG C/min of heating rate carries out insulation 5-6 hour when being warming up to 1620 DEG C, furnace cooling。
The corrosion-resistant pilot pin of described one, wherein in compacting sintering operation: the enhancing phase evanohm mixed-powder of above-mentioned acquisition is dried, screening, it is pressed into the size shape of required product；Then carrying out vacuum-sintering, 18 DEG C/min of heating rate carries out insulation 5-6 hour when being warming up to 1630 DEG C, furnace cooling。
The corrosion-resistant pilot pin of described one, wherein in compacting sintering operation: the enhancing phase evanohm mixed-powder of above-mentioned acquisition is dried, screening, it is pressed into the size shape of required product；Then carrying out vacuum-sintering, 18 DEG C/min of heating rate carries out insulation 5-6 hour when being warming up to 1625 DEG C, furnace cooling。
The corrosion-resistant pilot pin of described one, strengthens phase (weight) by aluminium nitride 10 parts, carborundum 5 parts, nickel oxide 3 parts, lanthanum boride 1 part, lanthana 1 part composition。
The corrosion-resistant pilot pin of described one, strengthens phase (weight) by aluminium nitride 10 parts, carborundum 6 parts, nickel oxide 4 parts, lanthanum boride 2 parts, lanthana 1 part composition。
The corrosion-resistant pilot pin of described one, strengthens phase (weight) by aluminium nitride 10 parts, carborundum 5.5 parts, nickel oxide 3.5 parts, lanthanum boride 1.5 parts, lanthana 1 part composition。
The corrosion-resistant pilot pin of described one, evanohm (weight) is by C8%, Zn5%, Cu2%, Ti0.5%, Ga0.2%, La0.06%, Al0.05-0.06%, Ca0.03%, and surplus is Cr composition。
The corrosion-resistant pilot pin of described one, evanohm (weight) is by C9%, Zn10%, Cu3%, Ti0.6%, Ga0.3%, La0.07%, Al0.06%, Ca0.04%, and surplus is Cr composition。
The corrosion-resistant pilot pin of described one, evanohm (weight) is by C8.5%, Zn7%, Cu2.5%, Ti0.55%, Ga0.25%, La0.065%, Al0.055%, Ca0.035%, and surplus is Cr composition。
Corrosion-resistant finishes includes (weight): organic siliconresin 1 part, 0.2 part of zeolite, sodium silicate 0.3 part, sodium carbonate 0.1 part, ethylenediamine 0.07 part, 0.06 part of magnesium chloride, 0.05 part of copper sulfate, prodan 0.03 part, after 0.01 part of raw material mixing of Polymethacrylimide, spraying solidification forms
Corrosion-resistant finishes includes (weight): organic siliconresin 1 part, 0.3 part of zeolite, sodium silicate 0.4 part, sodium carbonate 0.2 part, ethylenediamine 0.07 part, 0.06 part of magnesium chloride, 0.05 part of copper sulfate, prodan 0.03 part, after 0.01 part of raw material mixing of Polymethacrylimide, spraying solidification forms
Corrosion-resistant finishes includes (weight): organic siliconresin 1 part, 0.25 part of zeolite, sodium silicate 0.35 part, sodium carbonate 0.15 part, ethylenediamine 0.07 part, 0.06 part of magnesium chloride, 0.05 part of copper sulfate, prodan 0.03 part, after 0.01 part of raw material mixing of Polymethacrylimide, spraying solidification forms
A kind of manufacture method of corrosion-resistant pilot pin, it is characterized in that, corrosion-resistant pilot pin includes the corrosion-resistant finishes outside shank and shank, shank is by strengthening phase evanohm manufacture, strengthen phase evanohm material powder to include strengthening mutually and evanohm: strengthen phase (weight) by aluminium nitride 10 parts, carborundum 5-6 part, nickel oxide 3-4 part, lanthanum boride 1-2 part, lanthana 1 part composition；Evanohm (weight) is by C8-9%, Zn5-10%, Cu2-3%, Ti0.5-0.6%, Ga0.2-0.3%, La0.06-0.07%, Al0.05-0.06%, Ca0.03-0.04%, and surplus is Cr composition；The weight ratio strengthening phase and evanohm is 0.3,
The enhanced phase evanohm material powder mixing of shank, compacting sintering, annealing, machining, quenching, tempering process is prepared from:
Wherein in powder mixed processes: weigh aluminium nitride, carborundum, nickel oxide, lanthanum boride, lanthanum oxide powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 16:1, and abrading-ball is hardened steel ball, Ball-milling Time 85h, applies the high-purity argon gas of more than 99.9%, it is thus achieved that strengthen phase powder；Weighing aforementioned proportion chromium alloy powder, carry out ball milling alloying, Ball-milling Time 12h according to ratio of grinding media to material 13:1, interpolation dehydrated alcohol is process control agent, it is thus achieved that evanohm micropowder；Phase powder and the mixing of evanohm micropowder, ball milling 23 hours again will be strengthened, it is thus achieved that strengthen phase evanohm mixed-powder；
Wherein in compacting sintering operation: the enhancing phase evanohm mixed-powder of above-mentioned acquisition is dried, screening, it is pressed into the size shape of required product；Then carrying out vacuum-sintering, 18 DEG C/min of heating rate carries out insulation 5-6 hour when being warming up to 1620-1630 DEG C, furnace cooling,
Wherein in annealing operation: annealing temperature 1120 DEG C, keep 6h, after then cooling to 170 DEG C with the furnace, take out natural cooling in air；
Wherein in machining processes: machine according to shank size；
Wherein quenching, in tempering process: the temperature of described Quenching Treatment is 1120 DEG C, described temper is heated to 860 DEG C from room temperature by workpiece, heating rate 35 DEG C/h, be incubated 7 hours, after be cooled to 670 DEG C, rate of temperature fall 32 DEG C/h, it is incubated 7 hours, after be again cooled to 460 DEG C, rate of temperature fall 65 DEG C/h, be incubated 3 hours, rear air cooling is to room temperature
Afterwards shank is carried out spraying corrosion-resistant finishes, obtains final pilot pin。
Foregoing invention content having the beneficial effects that relative to prior art: 1) the corrosion-resistant pilot pin of the present invention strengthens by aluminium nitride, carborundum, nickel oxide, lanthanum boride, lanthana forms the mechanical performance that improve material；2) composition of evanohm has a higher-strength, then strengthens evanohm intensity under the effect of phase and obtain further raising, and 3) material powder mixing, compacting sintering, annealing, machining, quenching, tempering process makes manufacturing process more simple, reduces cost；4) multiple tempering operation makes workpiece strength increase。
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 corrosion-resistant pilot pin, it is characterized in that, corrosion-resistant pilot pin includes the corrosion-resistant finishes outside shank and shank, shank is by strengthening phase evanohm manufacture, strengthen phase evanohm material powder to include strengthening mutually and evanohm: strengthen phase (weight) by aluminium nitride 10 parts, carborundum 5 parts, nickel oxide 3 parts, lanthanum boride 1 part, lanthana 1 part composition；Evanohm (weight) is by C8%, Zn5%, Cu2%, Ti0.5%, Ga0.2%, La0.06%, Al0.05%, Ca0.03%, and surplus is Cr composition；The weight ratio strengthening phase and evanohm is 0.3,
The enhanced phase evanohm material powder mixing of shank, compacting sintering, annealing, machining, quenching, tempering process is prepared from:
Wherein in powder mixed processes: weigh aluminium nitride, carborundum, nickel oxide, lanthanum boride, lanthanum oxide powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 16:1, and abrading-ball is hardened steel ball, Ball-milling Time 85h, applies the high-purity argon gas of more than 99.9%, it is thus achieved that strengthen phase powder；Weighing aforementioned proportion chromium alloy powder, carry out ball milling alloying, Ball-milling Time 12h according to ratio of grinding media to material 13:1, interpolation dehydrated alcohol is process control agent, it is thus achieved that evanohm micropowder；Phase powder and the mixing of evanohm micropowder, ball milling 23 hours again will be strengthened, it is thus achieved that strengthen phase evanohm mixed-powder；
Wherein in compacting sintering operation: the enhancing phase evanohm mixed-powder of above-mentioned acquisition is dried, screening, it is pressed into the size shape of required product；Then carrying out vacuum-sintering, 18 DEG C/min of heating rate carries out insulation 5 hours when being warming up to 1620 DEG C, furnace cooling,
Wherein in annealing operation: annealing temperature 1120 DEG C, keep 6h, after then cooling to 170 DEG C with the furnace, take out natural cooling in air；
Wherein in machining processes: machine according to shank size；
Wherein quenching, in tempering process: the temperature of described Quenching Treatment is 1120 DEG C, described temper is heated to 860 DEG C from room temperature by workpiece, heating rate 35 DEG C/h, be incubated 7 hours, after be cooled to 670 DEG C, rate of temperature fall 32 DEG C/h, it is incubated 7 hours, after be again cooled to 460 DEG C, rate of temperature fall 65 DEG C/h, be incubated 3 hours, rear air cooling is to room temperature
Afterwards shank is carried out spraying corrosion-resistant finishes, obtains final pilot pin。
Embodiment 2
A kind of corrosion-resistant pilot pin, it is characterized in that, corrosion-resistant pilot pin includes the corrosion-resistant finishes outside shank and shank, shank is by strengthening phase evanohm manufacture, strengthen phase evanohm material powder to include strengthening mutually and evanohm: strengthen phase (weight) by aluminium nitride 10 parts, carborundum 6 parts, nickel oxide 4 parts, lanthanum boride 2 parts, lanthana 1 part composition；Evanohm (weight) is by C9%, Zn10%, Cu3%, Ti0.6%, Ga0.3%, La0.07%, Al0.06%, Ca0.04%, and surplus is Cr composition；The weight ratio strengthening phase and evanohm is 0.3,
The enhanced phase evanohm material powder mixing of shank, compacting sintering, annealing, machining, quenching, tempering process is prepared from:
Wherein in powder mixed processes: weigh aluminium nitride, carborundum, nickel oxide, lanthanum boride, lanthanum oxide powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 16:1, and abrading-ball is hardened steel ball, Ball-milling Time 85h, applies the high-purity argon gas of more than 99.9%, it is thus achieved that strengthen phase powder；Weighing aforementioned proportion chromium alloy powder, carry out ball milling alloying, Ball-milling Time 12h according to ratio of grinding media to material 13:1, interpolation dehydrated alcohol is process control agent, it is thus achieved that evanohm micropowder；Phase powder and the mixing of evanohm micropowder, ball milling 23 hours again will be strengthened, it is thus achieved that strengthen phase evanohm mixed-powder；
Wherein in compacting sintering operation: the enhancing phase evanohm mixed-powder of above-mentioned acquisition is dried, screening, it is pressed into the size shape of required product；Then carrying out vacuum-sintering, 18 DEG C/min of heating rate carries out insulation 5-6 hour when being warming up to 1630 DEG C, furnace cooling,
Wherein in annealing operation: annealing temperature 1120 DEG C, keep 6h, after then cooling to 170 DEG C with the furnace, take out natural cooling in air；
Wherein in machining processes: machine according to shank size；
Wherein quenching, in tempering process: the temperature of described Quenching Treatment is 1120 DEG C, described temper is heated to 860 DEG C from room temperature by workpiece, heating rate 35 DEG C/h, be incubated 7 hours, after be cooled to 670 DEG C, rate of temperature fall 32 DEG C/h, it is incubated 7 hours, after be again cooled to 460 DEG C, rate of temperature fall 65 DEG C/h, be incubated 3 hours, rear air cooling is to room temperature
Afterwards shank is carried out spraying corrosion-resistant finishes, obtains final pilot pin。
Embodiment 3
A kind of corrosion-resistant pilot pin, it is characterized in that, corrosion-resistant pilot pin includes the corrosion-resistant finishes outside shank and shank, shank is by strengthening phase evanohm manufacture, strengthen phase evanohm material powder to include strengthening mutually and evanohm: strengthen phase (weight) by aluminium nitride 10 parts, carborundum 5.5 parts, nickel oxide 3.5 parts, lanthanum boride 1.5 parts, lanthana 1 part composition；Evanohm (weight) is by C8.5%, Zn5.5%, Cu2.5%, Ti0.55%, Ga0.25%, La0.065%, Al0.055%, Ca0.035%, and surplus is Cr composition；The weight ratio strengthening phase and evanohm is 0.3,
The enhanced phase evanohm material powder mixing of shank, compacting sintering, annealing, machining, quenching, tempering process is prepared from:
Wherein in powder mixed processes: weigh aluminium nitride, carborundum, nickel oxide, lanthanum boride, lanthanum oxide powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 16:1, and abrading-ball is hardened steel ball, Ball-milling Time 85h, applies the high-purity argon gas of more than 99.9%, it is thus achieved that strengthen phase powder；Weighing aforementioned proportion chromium alloy powder, carry out ball milling alloying, Ball-milling Time 12h according to ratio of grinding media to material 13:1, interpolation dehydrated alcohol is process control agent, it is thus achieved that evanohm micropowder；Phase powder and the mixing of evanohm micropowder, ball milling 23 hours again will be strengthened, it is thus achieved that strengthen phase evanohm mixed-powder；
Wherein in compacting sintering operation: the enhancing phase evanohm mixed-powder of above-mentioned acquisition is dried, screening, it is pressed into the size shape of required product；Then carrying out vacuum-sintering, 18 DEG C/min of heating rate carries out insulation 5.5 hours when being warming up to 1625 DEG C, furnace cooling,
Wherein in annealing operation: annealing temperature 1120 DEG C, keep 6h, after then cooling to 170 DEG C with the furnace, take out natural cooling in air；
Wherein in machining processes: machine according to shank size；
Wherein quenching, in tempering process: the temperature of described Quenching Treatment is 1120 DEG C, described temper is heated to 860 DEG C from room temperature by workpiece, heating rate 35 DEG C/h, be incubated 7 hours, after be cooled to 670 DEG C, rate of temperature fall 32 DEG C/h, it is incubated 7 hours, after be again cooled to 460 DEG C, rate of temperature fall 65 DEG C/h, be incubated 3 hours, rear air cooling is to room temperature
Afterwards shank is carried out spraying corrosion-resistant finishes, obtains final pilot pin。
Embodiment 4
A kind of corrosion-resistant pilot pin, it is characterized in that, corrosion-resistant pilot pin includes the corrosion-resistant finishes outside shank and shank, shank is by strengthening phase evanohm manufacture, strengthen phase evanohm material powder to include strengthening mutually and evanohm: strengthen phase (weight) by aluminium nitride 10 parts, carborundum 5.4 parts, nickel oxide 3.3 parts, lanthanum boride 1.2 parts, lanthana 1 part composition；Evanohm (weight) is by C8.4%, Zn5.3%, Cu2.2%, Ti0.53%, Ga0.22%, La0.064%, Al0.053%, Ca0.032%, and surplus is Cr composition；The weight ratio strengthening phase and evanohm is 0.3,
The enhanced phase evanohm material powder mixing of shank, compacting sintering, annealing, machining, quenching, tempering process is prepared from:
Wherein in powder mixed processes: weigh aluminium nitride, carborundum, nickel oxide, lanthanum boride, lanthanum oxide powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 16:1, and abrading-ball is hardened steel ball, Ball-milling Time 85h, applies the high-purity argon gas of more than 99.9%, it is thus achieved that strengthen phase powder；Weighing aforementioned proportion chromium alloy powder, carry out ball milling alloying, Ball-milling Time 12h according to ratio of grinding media to material 13:1, interpolation dehydrated alcohol is process control agent, it is thus achieved that evanohm micropowder；Phase powder and the mixing of evanohm micropowder, ball milling 23 hours again will be strengthened, it is thus achieved that strengthen phase evanohm mixed-powder；
Wherein in compacting sintering operation: the enhancing phase evanohm mixed-powder of above-mentioned acquisition is dried, screening, it is pressed into the size shape of required product；Then carrying out vacuum-sintering, 18 DEG C/min of heating rate carries out insulation 5.4 hours when being warming up to 1622 DEG C, furnace cooling,
Wherein in annealing operation: annealing temperature 1120 DEG C, keep 6h, after then cooling to 170 DEG C with the furnace, take out natural cooling in air；
Wherein in machining processes: machine according to shank size；
Wherein quenching, in tempering process: the temperature of described Quenching Treatment is 1120 DEG C, described temper is heated to 860 DEG C from room temperature by workpiece, heating rate 35 DEG C/h, be incubated 7 hours, after be cooled to 670 DEG C, rate of temperature fall 32 DEG C/h, it is incubated 7 hours, after be again cooled to 460 DEG C, rate of temperature fall 65 DEG C/h, be incubated 3 hours, rear air cooling is to room temperature
Afterwards shank is carried out spraying corrosion-resistant finishes, obtains final pilot pin。
Embodiment 5
A kind of corrosion-resistant pilot pin, it is characterized in that, corrosion-resistant pilot pin includes the corrosion-resistant finishes outside shank and shank, shank is by strengthening phase evanohm manufacture, strengthen phase evanohm material powder to include strengthening mutually and evanohm: strengthen phase (weight) by aluminium nitride 10 parts, carborundum 5.6 parts, nickel oxide 3.7 parts, lanthanum boride 1.6 parts, lanthana 1 part composition；Evanohm (weight) is by C8.7%, Zn9%, Cu2.7%, Ti0.56%, Ga0.27%, La0.068%, Al0.057%, Ca0.039%, and surplus is Cr composition；The weight ratio strengthening phase and evanohm is 0.3,
The enhanced phase evanohm material powder mixing of shank, compacting sintering, annealing, machining, quenching, tempering process is prepared from:
Wherein in powder mixed processes: weigh aluminium nitride, carborundum, nickel oxide, lanthanum boride, lanthanum oxide powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 16:1, and abrading-ball is hardened steel ball, Ball-milling Time 85h, applies the high-purity argon gas of more than 99.9%, it is thus achieved that strengthen phase powder；Weighing aforementioned proportion chromium alloy powder, carry out ball milling alloying, Ball-milling Time 12h according to ratio of grinding media to material 13:1, interpolation dehydrated alcohol is process control agent, it is thus achieved that evanohm micropowder；Phase powder and the mixing of evanohm micropowder, ball milling 23 hours again will be strengthened, it is thus achieved that strengthen phase evanohm mixed-powder；
Wherein in compacting sintering operation: the enhancing phase evanohm mixed-powder of above-mentioned acquisition is dried, screening, it is pressed into the size shape of required product；Then carrying out vacuum-sintering, 18 DEG C/min of heating rate carries out insulation 5.8 hours when being warming up to 1627 DEG C, furnace cooling,
Wherein in annealing operation: annealing temperature 1120 DEG C, keep 6h, after then cooling to 170 DEG C with the furnace, take out natural cooling in air；
Wherein in machining processes: machine according to shank size；
Wherein quenching, in tempering process: the temperature of described Quenching Treatment is 1120 DEG C, described temper is heated to 860 DEG C from room temperature by workpiece, heating rate 35 DEG C/h, be incubated 7 hours, after be cooled to 670 DEG C, rate of temperature fall 32 DEG C/h, it is incubated 7 hours, after be again cooled to 460 DEG C, rate of temperature fall 65 DEG C/h, be incubated 3 hours, rear air cooling is to room temperature
Afterwards shank is carried out spraying corrosion-resistant finishes, obtains final pilot pin。
Claims (10)
1. a corrosion-resistant pilot pin, it is characterized in that, corrosion-resistant pilot pin includes the corrosion-resistant finishes outside shank and shank, shank is by strengthening phase evanohm manufacture, strengthen phase evanohm material powder to include strengthening phase powder and chromium alloy powder: strengthen phase powder (weight) by aluminium nitride 10 parts, carborundum 5-6 part, nickel oxide 3-4 part, lanthanum boride 1-2 part, lanthana 1 part composition；Evanohm (weight) is by C8-9%, Zn5-10%, Cu2-3%, Ti0.5-0.6%, Ga0.2-0.3%, La0.06-0.07%, Al0.05-0.06%, Ca0.03-0.04%, and surplus is Cr composition；The weight ratio strengthening phase powder and chromium alloy powder is 0.3,
The enhanced phase evanohm material powder mixing of shank, compacting sintering, annealing, machining, quenching, tempering process is prepared from:
Wherein in powder mixed processes: weigh aluminium nitride, carborundum, nickel oxide, lanthanum boride, lanthanum oxide powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 16:1, and abrading-ball is hardened steel ball, Ball-milling Time 85h, applies the high-purity argon gas of more than 99.9%, it is thus achieved that strengthen phase powder；Weighing aforementioned proportion chromium alloy powder, carry out ball milling alloying, Ball-milling Time 12h according to ratio of grinding media to material 13:1, interpolation dehydrated alcohol is process control agent, it is thus achieved that evanohm micropowder；Phase powder and the mixing of evanohm micropowder, ball milling 23 hours again will be strengthened, it is thus achieved that strengthen phase evanohm mixed-powder；
Wherein in compacting sintering operation: the enhancing phase evanohm mixed-powder of above-mentioned acquisition is dried, screening, it is pressed into the size shape of required product；Then carrying out vacuum-sintering, 18 DEG C/min of heating rate carries out insulation 5-6 hour when being warming up to 1620-1630 DEG C, furnace cooling,
Wherein in annealing operation: annealing temperature 1120 DEG C, keep 6h, after then cooling to 170 DEG C with the furnace, take out natural cooling in air；
Wherein in machining processes: machine according to shank size；
Wherein quenching, in tempering process: the temperature of described Quenching Treatment is 1120 DEG C, described temper is heated to 860 DEG C from room temperature by workpiece, heating rate 35 DEG C/h, be incubated 7 hours, after be cooled to 670 DEG C, rate of temperature fall 32 DEG C/h, it is incubated 7 hours, after be again cooled to 460 DEG C, rate of temperature fall 65 DEG C/h, be incubated 3 hours, rear air cooling is to room temperature
Afterwards shank is carried out spraying corrosion-resistant finishes, obtains final pilot pin。
2. a kind of corrosion-resistant pilot pin as claimed in claim 1, wherein in compacting sintering operation: the enhancing phase evanohm mixed-powder of above-mentioned acquisition is dried, screening, it is pressed into the size shape of required product；Then carrying out vacuum-sintering, 18 DEG C/min of heating rate carries out insulation 5-6 hour when being warming up to 1620 DEG C, furnace cooling。
3. a kind of corrosion-resistant pilot pin as claimed in claim 1, wherein in compacting sintering operation: the enhancing phase evanohm mixed-powder of above-mentioned acquisition is dried, screening, it is pressed into the size shape of required product；Then carrying out vacuum-sintering, 18 DEG C/min of heating rate carries out insulation 5-6 hour when being warming up to 1630 DEG C, furnace cooling。
4. a kind of corrosion-resistant pilot pin as claimed in claim 1, wherein in compacting sintering operation: the enhancing phase evanohm mixed-powder of above-mentioned acquisition is dried, screening, it is pressed into the size shape of required product；Then carrying out vacuum-sintering, 18 DEG C/min of heating rate carries out insulation 5-6 hour when being warming up to 1625 DEG C, furnace cooling。
5. a kind of corrosion-resistant pilot pin as claimed in claim 1, strengthens phase (weight) by aluminium nitride 10 parts, carborundum 5 parts, nickel oxide 3 parts, lanthanum boride 1 part, lanthana 1 part composition。
6. a kind of corrosion-resistant pilot pin as claimed in claim 1, strengthens phase (weight) by aluminium nitride 10 parts, carborundum 6 parts, nickel oxide 4 parts, lanthanum boride 2 parts, lanthana 1 part composition。
7. a kind of corrosion-resistant pilot pin as claimed in claim 1, strengthens phase (weight) by aluminium nitride 10 parts, carborundum 5.5 parts, nickel oxide 3.5 parts, lanthanum boride 1.5 parts, lanthana 1 part composition。
8. a kind of corrosion-resistant pilot pin as claimed in claim 1, evanohm (weight) is by C8%, Zn5%, Cu2%, Ti0.5%, Ga0.2%, La0.06%, Al0.05-0.06%, Ca0.03%, and surplus is Cr composition。
9. the corrosion-resistant pilot pin of one as described in claim before, evanohm (weight) is by C9%, Zn10%, Cu3%, Ti0.6%, Ga0.3%, La0.07%, Al0.06%, Ca0.04%, and surplus is Cr composition。
10. a kind of corrosion-resistant pilot pin as claimed in claim 1, evanohm (weight) is by C8.5%, Zn7%, Cu2.5%, Ti0.55%, Ga0.25%, La0.065%, Al0.055%, Ca0.035%, and surplus is Cr composition。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610098176.4A CN105695835A (en) | 2016-02-23 | 2016-02-23 | Corrosion-resistant guide pin |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610098176.4A CN105695835A (en) | 2016-02-23 | 2016-02-23 | Corrosion-resistant guide pin |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1361300A (en) * | 2000-12-29 | 2002-07-31 | 中国科学院金属研究所 | Antiwear material for artificial fiber cutting blade |
| CN103422001A (en) * | 2012-05-14 | 2013-12-04 | 东睦新材料集团股份有限公司 | Chromium-based alloy material and production method thereof |
| CN103981423A (en) * | 2014-06-11 | 2014-08-13 | 胡贤晨 | Preparation method of high-strength aluminum oxide dispersive composite |
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2016
- 2016-02-23 CN CN201610098176.4A patent/CN105695835A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1361300A (en) * | 2000-12-29 | 2002-07-31 | 中国科学院金属研究所 | Antiwear material for artificial fiber cutting blade |
| CN103422001A (en) * | 2012-05-14 | 2013-12-04 | 东睦新材料集团股份有限公司 | Chromium-based alloy material and production method thereof |
| CN103981423A (en) * | 2014-06-11 | 2014-08-13 | 胡贤晨 | Preparation method of high-strength aluminum oxide dispersive composite |
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