CN108300893A - A kind of Medical Instruments plummer - Google Patents

A kind of Medical Instruments plummer Download PDF

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Publication number
CN108300893A
CN108300893A CN201810157996.5A CN201810157996A CN108300893A CN 108300893 A CN108300893 A CN 108300893A CN 201810157996 A CN201810157996 A CN 201810157996A CN 108300893 A CN108300893 A CN 108300893A
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CN
China
Prior art keywords
medical instruments
copper
copper alloy
plummer
sintering
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CN201810157996.5A
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Chinese (zh)
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龙华
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Individual
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Individual
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Priority to CN201810157996.5A priority Critical patent/CN108300893A/en
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C9/00—Alloys based on copper
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B50/00—Containers, covers, furniture or holders specially adapted for surgical or diagnostic appliances or instruments, e.g. sterile covers
    • A61B50/20—Holders specially adapted for surgical or diagnostic appliances or instruments
    • A61B50/24—Stands
    • 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
    • B22F3/14—Both compacting and sintering simultaneously
    • B22F3/15—Hot isostatic pressing
    • 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
    • B22F3/18—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers
    • 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
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • 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
    • C22C32/0047—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 carbides, nitrides, borides or silicides as the main non-metallic constituents
    • C22C32/0052—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 carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/48—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
    • C23C22/52—Treatment of copper or alloys based thereon
    • 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
    • B22F3/18—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers
    • B22F2003/185—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by using pressure rollers by hot rolling, 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps

Abstract

A kind of Medical Instruments plummer includes the table sheet for carrying Medical Instruments, and the table sheet manufacturing method for carrying Medical Instruments includes：By isostatic pressed process; rolling process; sintering circuit; surface treatment procedure obtains Medical Instruments plummer; product residue stress very little after isostatic pressed, it is not easy to crack in the sintering operation of rolling later, so that copper alloy mechanical property is improved; plasma bombardment is carried out by copper plate surface and surface treatment procedure improves surface roughness and in copper alloy surface formation oxide protective layer, raising copper coin material weather resistance.

Description

A kind of Medical Instruments plummer
Technical field
The present invention relates to a kind of Medical Instruments plummer, belongs to Medical Instruments technical field.
Background technology
Medical Instruments is the equipment for curing disease, mainly directly or indirectly acts on instrument, equipment, the device of people's body Tool, in-vitro diagnosis article etc., along with scientific and technological continuous development, Medical Instruments constantly update with it is perfect, for Medical Instruments Mobile place is a critical problem, and the bearing capacity of bigger is needed for the performance of loading plate in Medical Instruments plummer With better roughness and weatherability, ensure in moving process, causes the damage of instrument with sliding greatly not by external force and fall It falls, the prior art still cannot be satisfied the demand used.
Invention content
In order to solve the problems in the existing technology the present invention is to provide a kind of Medical Instruments plummer and its manufacturer Method.
A kind of Medical Instruments plummer includes the table sheet for carrying Medical Instruments,
Table sheet manufacturing method for carrying Medical Instruments includes：
Copper alloy is subjected to melting in smelting furnace and forms melt, copper alloying element percentage composition group is divided into：Cr 8-9%, Ti 0.7-0.9%, Al 0.7-0.9%, Sn 0.7-0.8%, Co 0.5-0.6%, V 0.4-0.6%, Ag 0.1-0.2%, In 0.05-0.08%, Ni 0.03-0.06%, Ca 0.03-0.04%, Bi 0.02-0.03%, surplus Cu later close copper Golden melt carries out gas atomization and prepares copper alloy powder, and molten alloyed copper temperature is controlled at 1060-1080 DEG C；Molten alloyed copper matter Amount flow rate is 1000-1500 gram/minutes, and gas pressure is 3-4 MPa；Gas injection angle is 30-34 °；Atomization gas is nitrogen Gas obtains copper alloy atomized powder, and obtained copper alloy atomized powder, which is put into ball grinder, carries out ball milling, and when ball milling fills indifferent gas Body is protected, rotational speed of ball-mill 150-180rpm, and control ratio of grinding media to material is 5-8：1, Ball-milling Time is 5-8 hours, obtains copper conjunction Bronze end；
By above-mentioned copper alloy powder and chromium carbide powder and boron carbide powder according to weight ratio：70-80：3-6：The ratio of 2-4 is mixed After conjunction, 820-850 DEG C is warming up to heating rate for 40-60 DEG C/min, hot isostatic pressing pressure is 120- using heat isostatic apparatus 140MPa, the dwell time is 3 hours, then is cooled to room temperature with 20-40 DEG C/min of rate of temperature fall；Hot isostatic pressing blank is obtained, it will Hot isostatic pressing blank carries out first stage hot rolling, 720-750 DEG C of hot-rolled temperature, single pass rolling reduction 5- using plate hot rolling machine 7%, by 3-5 passages, carry out first stage sintering later, 800-820 DEG C of sintering temperature, sintering time 1-1.5 hours, then Second stage hot rolling, 690-720 DEG C of hot-rolled temperature are carried out, single pass rolling reduction 10-12% carries out the later by 5-7 passages Two-stage is sintered, and 850-870 DEG C of sintering temperature, sintering time 2-4 hours obtains copper coin material；
Plasma bombardment is carried out to copper plate surface, power control later will in 1000-1200W, bombardment time 10-20 minutes Copper coin material is impregnated in surface treatment liquid, and dip time 2-5 minutes, surface treatment liquid includes following components：Difluoroacetic acid 10- 30g/L, nitric acid 10-15g/L, isethionic acid 5-10g/L, diethyl thiourea 2-5g/L, diethylenetriamine 1-3g/L, 2- sulfydryl Benzoxazole 0.3-0.4g/L, surplus are water, and cleaning, drying obtains the final deck plate for carrying Medical Instruments after dipping Material.
A kind of table sheet manufacturing method for carrying Medical Instruments includes the following steps：
Copper alloy is subjected to melting in smelting furnace and forms melt, copper alloying element percentage composition group is divided into：Cr 8-9%, Ti 0.7-0.9%, Al 0.7-0.9%, Sn 0.7-0.8%, Co 0.5-0.6%, V 0.4-0.6%, Ag 0.1-0.2%, In 0.05-0.08%, Ni 0.03-0.06%, Ca 0.03-0.04%, Bi 0.02-0.03%, surplus Cu later close copper Golden melt carries out gas atomization and prepares copper alloy powder, and molten alloyed copper temperature is controlled at 1060-1080 DEG C；Molten alloyed copper matter Amount flow rate is 1000-1500 gram/minutes, and gas pressure is 3-4 MPa；Gas injection angle is 30-34 °；Atomization gas is nitrogen Gas obtains copper alloy atomized powder, and obtained copper alloy atomized powder, which is put into ball grinder, carries out ball milling, and when ball milling fills indifferent gas Body is protected, rotational speed of ball-mill 150-180rpm, and control ratio of grinding media to material is 5-8：1, Ball-milling Time is 5-8 hours, obtains copper conjunction Bronze end；
By above-mentioned copper alloy powder and chromium carbide powder and boron carbide powder according to weight ratio：70-80：3-6：The ratio of 2-4 is mixed After conjunction, 820-850 DEG C is warming up to heating rate for 40-60 DEG C/min, hot isostatic pressing pressure is 120- using heat isostatic apparatus 140MPa, the dwell time is 3 hours, then is cooled to room temperature with 20-40 DEG C/min of rate of temperature fall；Hot isostatic pressing blank is obtained, it will Hot isostatic pressing blank carries out first stage hot rolling, 720-750 DEG C of hot-rolled temperature, single pass rolling reduction 5- using plate hot rolling machine 7%, by 3-5 passages, carry out first stage sintering later, 800-820 DEG C of sintering temperature, sintering time 1-1.5 hours, then Second stage hot rolling, 690-720 DEG C of hot-rolled temperature are carried out, single pass rolling reduction 10-12% carries out the later by 5-7 passages Two-stage is sintered, and 850-870 DEG C of sintering temperature, sintering time 2-4 hours obtains copper coin material；
Plasma bombardment is carried out to copper plate surface, power control later will in 1000-1200W, bombardment time 10-20 minutes Copper coin material is impregnated in surface treatment liquid, and dip time 2-5 minutes, surface treatment liquid includes following components：Difluoroacetic acid 10- 30g/L, nitric acid 10-15g/L, isethionic acid 5-10g/L, diethyl thiourea 2-5g/L, diethylenetriamine 1-3g/L, 2- sulfydryl Benzoxazole 0.3-0.4g/L, surplus are water, and cleaning, drying obtains the final deck plate for carrying Medical Instruments after dipping Material.
Preferably, the molten alloyed copper temperature control is at 1065-1075 DEG C；Molten alloyed copper mass flowrate is 1200- 1400 gram/minutes.
Preferably, the gas pressure is 3 MPa；Gas injection angle is 30-34 °.
Preferably, the rotational speed of ball-mill is 150rpm, control ratio of grinding media to material is 8：1, Ball-milling Time is 6 hours.
Preferably, the copper alloy powder and chromium carbide powder and boron carbide powder are according to weight ratio： 80：5：2 ratio Example.
Preferably, the hot isostatic pressing pressure is 120MPa, the dwell time is 3 hours.
Preferably, the first stage hot rolling, 750 DEG C of hot-rolled temperature, single pass rolling reduction 5.5-6%.
Preferably, the second stage sintering, 860 DEG C of sintering temperature, sintering time 2 hours.
Preferably, the plasma bombardment power control is in 1000W, bombardment time 10 minutes.
Preferably, the copper alloying element percentage composition group is divided into：Cr 8%, Ti 0.75%, Al 0.7%, Sn 0.7%, Co 0.6%, V 0.5%, Ag 0.1%, In 0.07%, Ni 0.05%, Ca 0.03%, Bi 0.02%, surplus For Cu.
Preferably, the Medical Instruments is positioned on plummer to keep Medical Instruments easy to remove.
The present invention manufactures copper alloy powder using gas atomization, and particle size distribution is uniform, is carried for follow-up isostatic pressed process For good powder raw material；The present invention manufactures copper product using hydrostatic pressing technology so that copper alloy has density Gao Erfen Cloth is uniformly, air entrapment is reduced, microscopic porosity reduces between alloy grain, and chromium carbide and carbonization boron deregulation are more uniform, reach The effect of more preferable disperse enhancing, product residue stress very little after isostatic pressed is not easy to crack in the sintering operation of rolling later, makes Copper alloy mechanical property is improved, and carries out plasma bombardment by copper plate surface and surface treatment procedure improves rough surface It spends and forms oxide protective layer in copper alloy surface, improve copper coin material weather resistance.
Specific implementation mode
Table sheet correlated performance test result for carrying Medical Instruments：
Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5
Tensile strength MPa 590 596 582 596 588
Elongation percentage % 7.0 9.0 8.4 7.8 8.2
Hardness HV 181 186 190 185 181
Corrosion rate mm/a 0.02 0.01 0.02 0.03 0.02
Surface roughness 12.5 12.5 12.5 12.5 12.5
Embodiment 1
A kind of Medical Instruments plummer includes the table sheet for carrying Medical Instruments,
Table sheet manufacturing method for carrying Medical Instruments includes：
Copper alloy is subjected to melting in smelting furnace and forms melt, copper alloying element percentage composition group is divided into：Cr 8%, Ti 0.75%, Al 0.85%, Sn 0.8%, Co 0.55%, V 0.4%, Ag 0.15%, In 0.06%, Ni 0.05%, Ca 0.03%, Bi 0.02%, surplus Cu carry out gas atomization to molten alloyed copper later and prepare copper alloy powder, and copper alloy is molten Liquid temperature is controlled at 1070 DEG C；Molten alloyed copper mass flowrate is 1200 gram/minutes, and gas pressure is 3-4 MPa；Gas injection Angle is 30-34 °；Atomization gas is nitrogen, obtains copper alloy atomized powder, and obtained copper alloy atomized powder is put into ball milling Tank carries out ball milling, and filling with inert gas is protected when ball milling, rotational speed of ball-mill 150-180rpm, and control ratio of grinding media to material is 6：1, ball milling Time is 5 hours, obtains copper alloy powder；
By above-mentioned copper alloy powder and chromium carbide powder and boron carbide powder according to weight ratio：75：3：After 2 ratio mixing, make With heat isostatic apparatus 820-850 DEG C is warming up to heating rate for 40-60 DEG C/min, hot isostatic pressing pressure is 120-140MPa, Dwell time is 3 hours, then is cooled to room temperature with 20-40 DEG C/min of rate of temperature fall；Hot isostatic pressing blank is obtained, heat etc. is quiet Green compact material carries out first stage hot rolling, 720-750 DEG C of hot-rolled temperature using plate hot rolling machine, and single pass rolling reduction 5-7% passes through 3-5 passages, carry out first stage sintering, 800-820 DEG C of sintering temperature later, and sintering time 1-1.5 hours then carries out second Stage hot rolling, 690-720 DEG C of hot-rolled temperature, single pass rolling reduction 10-12% carry out second stage burning later by 5-7 passages Knot, 850-870 DEG C of sintering temperature, sintering time 2-4 hours obtain copper coin material；
Plasma bombardment is carried out to copper plate surface, power control is in 1000-1200W, bombardment time 15 minutes, later by copper coin Material is impregnated in surface treatment liquid, and dip time 2-5 minutes, surface treatment liquid includes following components：Difluoroacetic acid 30g/L, nitre Sour 10g/L, isethionic acid 10g/L, diethyl thiourea 3g/L, diethylenetriamine 2g/L, 2- mercaptobenzoxazole 0.3g/L are remaining It is water to measure, and cleaning, drying obtains the final table sheet for carrying Medical Instruments after dipping.
A kind of table sheet manufacturing method for carrying Medical Instruments includes the following steps：
Copper alloy is subjected to melting in smelting furnace and forms melt, copper alloying element percentage composition group is divided into：Cr 8%, Ti 0.75%, Al 0.85%, Sn 0.8%, Co 0.55%, V 0.4%, Ag 0.15%, In 0.06%, Ni 0.05%, Ca 0.03%, Bi 0.02%, surplus Cu carry out gas atomization to molten alloyed copper later and prepare copper alloy powder, and copper alloy is molten Liquid temperature is controlled at 1070 DEG C；Molten alloyed copper mass flowrate is 1200 gram/minutes, and gas pressure is 3-4 MPa；Gas injection Angle is 30-34 °；Atomization gas is nitrogen, obtains copper alloy atomized powder, and obtained copper alloy atomized powder is put into ball milling Tank carries out ball milling, and filling with inert gas is protected when ball milling, rotational speed of ball-mill 150-180rpm, and control ratio of grinding media to material is 6：1, ball milling Time is 5 hours, obtains copper alloy powder；
By above-mentioned copper alloy powder and chromium carbide powder and boron carbide powder according to weight ratio：75：3：After 2 ratio mixing, make With heat isostatic apparatus 820-850 DEG C is warming up to heating rate for 40-60 DEG C/min, hot isostatic pressing pressure is 120-140MPa, Dwell time is 3 hours, then is cooled to room temperature with 20-40 DEG C/min of rate of temperature fall；Hot isostatic pressing blank is obtained, heat etc. is quiet Green compact material carries out first stage hot rolling, 720-750 DEG C of hot-rolled temperature using plate hot rolling machine, and single pass rolling reduction 5-7% passes through 3-5 passages, carry out first stage sintering, 800-820 DEG C of sintering temperature later, and sintering time 1-1.5 hours then carries out second Stage hot rolling, 690-720 DEG C of hot-rolled temperature, single pass rolling reduction 10-12% carry out second stage burning later by 5-7 passages Knot, 850-870 DEG C of sintering temperature, sintering time 2-4 hours obtain copper coin material；
Plasma bombardment is carried out to copper plate surface, power control is in 1000-1200W, bombardment time 15 minutes, later by copper coin Material is impregnated in surface treatment liquid, and dip time 2-5 minutes, surface treatment liquid includes following components：Difluoroacetic acid 30g/L, nitre Sour 10g/L, isethionic acid 10g/L, diethyl thiourea 3g/L, diethylenetriamine 2g/L, 2- mercaptobenzoxazole 0.3g/L are remaining It is water to measure, and cleaning, drying obtains the final table sheet for carrying Medical Instruments after dipping.
Embodiment 2
A kind of Medical Instruments plummer includes the table sheet for carrying Medical Instruments,
Table sheet manufacturing method for carrying Medical Instruments includes：
Copper alloy is subjected to melting in smelting furnace and forms melt, copper alloying element percentage composition group is divided into：Cr 9%, Ti 0.8%, Al 0.7%, Sn 0.7%, Co 0.5%, V 0.45%, Ag 0.15%, In 0.06%, Ni 0.05%, Ca 0.04%, Bi 0.025%, surplus Cu carry out gas atomization to molten alloyed copper later and prepare copper alloy powder, copper alloy Melt temperature is controlled at 1080 DEG C；Molten alloyed copper mass flowrate is 1000-1500 gram/minutes, and gas pressure is 3-4 MPa； Gas injection angle is 30-34 °；Atomization gas is nitrogen, obtains copper alloy atomized powder, the copper alloy atomized powder that will be obtained It is put into ball grinder and carries out ball milling, filling with inert gas is protected when ball milling, rotational speed of ball-mill 150-180rpm, and control ratio of grinding media to material is 8：1, Ball-milling Time is 8 hours, obtains copper alloy powder；
By above-mentioned copper alloy powder and chromium carbide powder and boron carbide powder according to weight ratio：70：6：After 3 ratio mixing, make With heat isostatic apparatus 820-850 DEG C is warming up to heating rate for 40-60 DEG C/min, hot isostatic pressing pressure is 120-140MPa, Dwell time is 3 hours, then is cooled to room temperature with 20-40 DEG C/min of rate of temperature fall；Hot isostatic pressing blank is obtained, heat etc. is quiet Green compact material carries out first stage hot rolling, 720-750 DEG C of hot-rolled temperature using plate hot rolling machine, and single pass rolling reduction 5-7% passes through 3-5 passages, carry out first stage sintering, 800-820 DEG C of sintering temperature later, and sintering time 1-1.5 hours then carries out second Stage hot rolling, 690-720 DEG C of hot-rolled temperature, single pass rolling reduction 10-12% carry out second stage burning later by 5-7 passages Knot, 850-870 DEG C of sintering temperature, sintering time 2-4 hours obtain copper coin material；
Plasma bombardment is carried out to copper plate surface, power control is in 1000-1200W, bombardment time 20 minutes, later by copper coin Material is impregnated in surface treatment liquid, and dip time 2-5 minutes, surface treatment liquid includes following components：Difluoroacetic acid 20g/L, nitre Sour 15g/L, isethionic acid 10g/L, diethyl thiourea 3g/L, diethylenetriamine 1g/L, 2- mercaptobenzoxazole 0.35g/L, Surplus is water, and cleaning, drying obtains the final table sheet for carrying Medical Instruments after dipping.
A kind of table sheet manufacturing method for carrying Medical Instruments includes the following steps：
Copper alloy is subjected to melting in smelting furnace and forms melt, copper alloying element percentage composition group is divided into：Cr 9%, Ti 0.8%, Al 0.7%, Sn 0.7%, Co 0.5%, V 0.45%, Ag 0.15%, In 0.06%, Ni 0.05%, Ca 0.04%, Bi 0.025%, surplus Cu carry out gas atomization to molten alloyed copper later and prepare copper alloy powder, copper alloy Melt temperature is controlled at 1080 DEG C；Molten alloyed copper mass flowrate is 1000-1500 gram/minutes, and gas pressure is 3-4 MPa； Gas injection angle is 30-34 °；Atomization gas is nitrogen, obtains copper alloy atomized powder, the copper alloy atomized powder that will be obtained It is put into ball grinder and carries out ball milling, filling with inert gas is protected when ball milling, rotational speed of ball-mill 150-180rpm, and control ratio of grinding media to material is 8：1, Ball-milling Time is 8 hours, obtains copper alloy powder；
By above-mentioned copper alloy powder and chromium carbide powder and boron carbide powder according to weight ratio：70：6：After 3 ratio mixing, make With heat isostatic apparatus 820-850 DEG C is warming up to heating rate for 40-60 DEG C/min, hot isostatic pressing pressure is 120-140MPa, Dwell time is 3 hours, then is cooled to room temperature with 20-40 DEG C/min of rate of temperature fall；Hot isostatic pressing blank is obtained, heat etc. is quiet Green compact material carries out first stage hot rolling, 720-750 DEG C of hot-rolled temperature using plate hot rolling machine, and single pass rolling reduction 5-7% passes through 3-5 passages, carry out first stage sintering, 800-820 DEG C of sintering temperature later, and sintering time 1-1.5 hours then carries out second Stage hot rolling, 690-720 DEG C of hot-rolled temperature, single pass rolling reduction 10-12% carry out second stage burning later by 5-7 passages Knot, 850-870 DEG C of sintering temperature, sintering time 2-4 hours obtain copper coin material；
Plasma bombardment is carried out to copper plate surface, power control is in 1000-1200W, bombardment time 20 minutes, later by copper coin Material is impregnated in surface treatment liquid, and dip time 2-5 minutes, surface treatment liquid includes following components：Difluoroacetic acid 20g/L, nitre Sour 15g/L, isethionic acid 10g/L, diethyl thiourea 3g/L, diethylenetriamine 1g/L, 2- mercaptobenzoxazole 0.35g/L, Surplus is water, and cleaning, drying obtains the final table sheet for carrying Medical Instruments after dipping.
Embodiment 3
A kind of Medical Instruments plummer includes the table sheet for carrying Medical Instruments,
Table sheet manufacturing method for carrying Medical Instruments includes：
Copper alloy is subjected to melting in smelting furnace and forms melt, copper alloying element percentage composition group is divided into：Cr 8.5%, Ti 0.85%, Al 0.85%, Sn 0.7%, Co 0.55%, V 0.55%, Ag 0.15%, In 0.05%, Ni 0.03%, Ca 0.03%, Bi 0.02%, surplus Cu carry out gas atomization to molten alloyed copper later and prepare copper alloy powder, and copper closes Golden melt temperature control is at 1065 DEG C；Molten alloyed copper mass flowrate is 1000-1500 gram/minutes, gas pressure 3-4 MPa；Gas injection angle is 30-34 °；Atomization gas is nitrogen, obtains copper alloy atomized powder, and obtained copper alloy is atomized Powder is put into ball grinder and carries out ball milling, and filling with inert gas is protected when ball milling, rotational speed of ball-mill 150-180rpm, control ball material Than being 6：1, Ball-milling Time is 6 hours, obtains copper alloy powder；
By above-mentioned copper alloy powder and chromium carbide powder and boron carbide powder according to weight ratio：76：5：After 2 ratio mixing, make With heat isostatic apparatus 820-850 DEG C is warming up to heating rate for 40-60 DEG C/min, hot isostatic pressing pressure is 120-140MPa, Dwell time is 3 hours, then is cooled to room temperature with 20-40 DEG C/min of rate of temperature fall；Hot isostatic pressing blank is obtained, heat etc. is quiet Green compact material carries out first stage hot rolling, 720-750 DEG C of hot-rolled temperature using plate hot rolling machine, and single pass rolling reduction 5-7% passes through 3-5 passages, carry out first stage sintering, 800-820 DEG C of sintering temperature later, and sintering time 1-1.5 hours then carries out second Stage hot rolling, 690-720 DEG C of hot-rolled temperature, single pass rolling reduction 10-12% carry out second stage burning later by 5-7 passages Knot, 850-870 DEG C of sintering temperature, sintering time 2-4 hours obtain copper coin material；
Plasma bombardment is carried out to copper plate surface, power control later will in 1000-1200W, bombardment time 10-20 minutes Copper coin material is impregnated in surface treatment liquid, and dip time 2-5 minutes, surface treatment liquid includes following components：Difluoroacetic acid 25g/ L, nitric acid 15g/L, isethionic acid 8g/L, diethyl thiourea 2g/L, diethylenetriamine 2g/L, 2- mercaptobenzoxazole 0.4g/ L, surplus are water, and cleaning, drying obtains the final table sheet for carrying Medical Instruments after dipping.
A kind of table sheet manufacturing method for carrying Medical Instruments includes the following steps：
Copper alloy is subjected to melting in smelting furnace and forms melt, copper alloying element percentage composition group is divided into：Cr 8.5%, Ti 0.85%, Al 0.85%, Sn 0.7%, Co 0.55%, V 0.55%, Ag 0.15%, In 0.05%, Ni 0.03%, Ca 0.03%, Bi 0.02%, surplus Cu carry out gas atomization to molten alloyed copper later and prepare copper alloy powder, and copper closes Golden melt temperature control is at 1065 DEG C；Molten alloyed copper mass flowrate is 1000-1500 gram/minutes, gas pressure 3-4 MPa；Gas injection angle is 30-34 °；Atomization gas is nitrogen, obtains copper alloy atomized powder, and obtained copper alloy is atomized Powder is put into ball grinder and carries out ball milling, and filling with inert gas is protected when ball milling, rotational speed of ball-mill 150-180rpm, control ball material Than being 6：1, Ball-milling Time is 6 hours, obtains copper alloy powder；
By above-mentioned copper alloy powder and chromium carbide powder and boron carbide powder according to weight ratio：76：5：After 2 ratio mixing, make With heat isostatic apparatus 820-850 DEG C is warming up to heating rate for 40-60 DEG C/min, hot isostatic pressing pressure is 120-140MPa, Dwell time is 3 hours, then is cooled to room temperature with 20-40 DEG C/min of rate of temperature fall；Hot isostatic pressing blank is obtained, heat etc. is quiet Green compact material carries out first stage hot rolling, 720-750 DEG C of hot-rolled temperature using plate hot rolling machine, and single pass rolling reduction 5-7% passes through 3-5 passages, carry out first stage sintering, 800-820 DEG C of sintering temperature later, and sintering time 1-1.5 hours then carries out second Stage hot rolling, 690-720 DEG C of hot-rolled temperature, single pass rolling reduction 10-12% carry out second stage burning later by 5-7 passages Knot, 850-870 DEG C of sintering temperature, sintering time 2-4 hours obtain copper coin material；
Plasma bombardment is carried out to copper plate surface, power control later will in 1000-1200W, bombardment time 10-20 minutes Copper coin material is impregnated in surface treatment liquid, and dip time 2-5 minutes, surface treatment liquid includes following components：Difluoroacetic acid 25g/ L, nitric acid 15g/L, isethionic acid 8g/L, diethyl thiourea 2g/L, diethylenetriamine 2g/L, 2- mercaptobenzoxazole 0.4g/ L, surplus are water, and cleaning, drying obtains the final table sheet for carrying Medical Instruments after dipping.
Embodiment 4
A kind of Medical Instruments plummer includes the table sheet for carrying Medical Instruments,
Table sheet manufacturing method for carrying Medical Instruments includes：
Copper alloy is subjected to melting in smelting furnace and forms melt, copper alloying element percentage composition group is divided into：Cr 8.2%, Ti 0.8%, Al 0.8%, Sn 0.78%, Co 0.52%, V 0.5%, Ag 0.15%, In 0.07%, Ni 0.04%, Ca 0.03%, Bi 0.02%, surplus Cu carry out gas atomization to molten alloyed copper later and prepare copper alloy powder, and copper alloy is molten Liquid temperature is controlled at 1080 DEG C；Molten alloyed copper mass flowrate is 1300 gram/minutes, and gas pressure is 3-4 MPa；Gas injection Angle is 30-34 °；Atomization gas is nitrogen, obtains copper alloy atomized powder, and obtained copper alloy atomized powder is put into ball milling Tank carries out ball milling, and filling with inert gas is protected when ball milling, rotational speed of ball-mill 150-180rpm, and control ratio of grinding media to material is 7：1, ball milling Time is 8 hours, obtains copper alloy powder；
By above-mentioned copper alloy powder and chromium carbide powder and boron carbide powder according to weight ratio：78：6：After 2 ratio mixing, make With heat isostatic apparatus 820-850 DEG C is warming up to heating rate for 40-60 DEG C/min, hot isostatic pressing pressure is 120-140MPa, Dwell time is 3 hours, then is cooled to room temperature with 20-40 DEG C/min of rate of temperature fall；Hot isostatic pressing blank is obtained, heat etc. is quiet Green compact material carries out first stage hot rolling, 720-750 DEG C of hot-rolled temperature using plate hot rolling machine, and single pass rolling reduction 5-7% passes through 3-5 passages, carry out first stage sintering, 800-820 DEG C of sintering temperature later, and sintering time 1-1.5 hours then carries out second Stage hot rolling, 690-720 DEG C of hot-rolled temperature, single pass rolling reduction 10-12% carry out second stage burning later by 5-7 passages Knot, 850-870 DEG C of sintering temperature, sintering time 2-4 hours obtain copper coin material；
Plasma bombardment is carried out to copper plate surface, power control later will in 1000-1200W, bombardment time 10-20 minutes Copper coin material is impregnated in surface treatment liquid, and dip time 2-5 minutes, surface treatment liquid includes following components：Difluoroacetic acid 20g/ L, nitric acid 10g/L, isethionic acid 10g/L, diethyl thiourea 5g/L, diethylenetriamine 3g/L, 2- mercaptobenzoxazole 0.32g/L, surplus are water, and cleaning, drying obtains the final table sheet for carrying Medical Instruments after dipping.
A kind of table sheet manufacturing method for carrying Medical Instruments includes the following steps：
Copper alloy is subjected to melting in smelting furnace and forms melt, copper alloying element percentage composition group is divided into：Cr 8.2%, Ti 0.8%, Al 0.8%, Sn 0.78%, Co 0.52%, V 0.5%, Ag 0.15%, In 0.07%, Ni 0.04%, Ca 0.03%, Bi 0.02%, surplus Cu carry out gas atomization to molten alloyed copper later and prepare copper alloy powder, and copper alloy is molten Liquid temperature is controlled at 1080 DEG C；Molten alloyed copper mass flowrate is 1300 gram/minutes, and gas pressure is 3-4 MPa；Gas injection Angle is 30-34 °；Atomization gas is nitrogen, obtains copper alloy atomized powder, and obtained copper alloy atomized powder is put into ball milling Tank carries out ball milling, and filling with inert gas is protected when ball milling, rotational speed of ball-mill 150-180rpm, and control ratio of grinding media to material is 7：1, ball milling Time is 8 hours, obtains copper alloy powder；
By above-mentioned copper alloy powder and chromium carbide powder and boron carbide powder according to weight ratio：78：6：After 2 ratio mixing, make With heat isostatic apparatus 820-850 DEG C is warming up to heating rate for 40-60 DEG C/min, hot isostatic pressing pressure is 120-140MPa, Dwell time is 3 hours, then is cooled to room temperature with 20-40 DEG C/min of rate of temperature fall；Hot isostatic pressing blank is obtained, heat etc. is quiet Green compact material carries out first stage hot rolling, 720-750 DEG C of hot-rolled temperature using plate hot rolling machine, and single pass rolling reduction 5-7% passes through 3-5 passages, carry out first stage sintering, 800-820 DEG C of sintering temperature later, and sintering time 1-1.5 hours then carries out second Stage hot rolling, 690-720 DEG C of hot-rolled temperature, single pass rolling reduction 10-12% carry out second stage burning later by 5-7 passages Knot, 850-870 DEG C of sintering temperature, sintering time 2-4 hours obtain copper coin material；
Plasma bombardment is carried out to copper plate surface, power control later will in 1000-1200W, bombardment time 10-20 minutes Copper coin material is impregnated in surface treatment liquid, and dip time 2-5 minutes, surface treatment liquid includes following components：Difluoroacetic acid 20g/ L, nitric acid 10g/L, isethionic acid 10g/L, diethyl thiourea 5g/L, diethylenetriamine 3g/L, 2- mercaptobenzoxazole 0.32g/L, surplus are water, and cleaning, drying obtains the final table sheet for carrying Medical Instruments after dipping.
Embodiment 5
A kind of Medical Instruments plummer includes the table sheet for carrying Medical Instruments,
Table sheet manufacturing method for carrying Medical Instruments includes：
Copper alloy is subjected to melting in smelting furnace and forms melt, copper alloying element percentage composition group is divided into：Cr 8.7%, Ti 0.84%, Al 0.73%, Sn 0.7%, Co 0.5%, V 0.4%, Ag 0.2%, In 0.07%, Ni 0.03%, Ca 0.03%, Bi 0.02%, surplus Cu carry out gas atomization to molten alloyed copper later and prepare copper alloy powder, and copper alloy is molten Liquid temperature is controlled at 1060 DEG C；Molten alloyed copper mass flowrate is 1500 gram/minutes, and gas pressure is 3-4 MPa；Gas injection Angle is 30-34 °；Atomization gas is nitrogen, obtains copper alloy atomized powder, and obtained copper alloy atomized powder is put into ball milling Tank carries out ball milling, and filling with inert gas is protected when ball milling, rotational speed of ball-mill 150-180rpm, and control ratio of grinding media to material is 5：1, ball milling Time is 6 hours, obtains copper alloy powder；
By above-mentioned copper alloy powder and chromium carbide powder and boron carbide powder according to weight ratio：74：3：After 2 ratio mixing, make With heat isostatic apparatus 820-850 DEG C is warming up to heating rate for 40-60 DEG C/min, hot isostatic pressing pressure is 120-140MPa, Dwell time is 3 hours, then is cooled to room temperature with 20-40 DEG C/min of rate of temperature fall；Hot isostatic pressing blank is obtained, heat etc. is quiet Green compact material carries out first stage hot rolling, 720-750 DEG C of hot-rolled temperature using plate hot rolling machine, and single pass rolling reduction 5-7% passes through 3-5 passages, carry out first stage sintering, 800-820 DEG C of sintering temperature later, and sintering time 1-1.5 hours then carries out second Stage hot rolling, 690-720 DEG C of hot-rolled temperature, single pass rolling reduction 10-12% carry out second stage burning later by 5-7 passages Knot, 850-870 DEG C of sintering temperature, sintering time 2-4 hours obtain copper coin material；
Plasma bombardment is carried out to copper plate surface, power control is in 1000-1200W, bombardment time 10 minutes, later by copper coin Material is impregnated in surface treatment liquid, and dip time 2-5 minutes, surface treatment liquid includes following components：Difluoroacetic acid 30g/L, nitre Sour 10g/L, isethionic acid 7g/L, diethyl thiourea 3g/L, diethylenetriamine 3g/L, 2- mercaptobenzoxazole 0.36g/L are remaining It is water to measure, and cleaning, drying obtains the final table sheet for carrying Medical Instruments after dipping.
A kind of table sheet manufacturing method for carrying Medical Instruments includes the following steps：
Copper alloy is subjected to melting in smelting furnace and forms melt, copper alloying element percentage composition group is divided into：Cr 8.7%, Ti 0.84%, Al 0.73%, Sn 0.7%, Co 0.5%, V 0.4%, Ag 0.2%, In 0.07%, Ni 0.03%, Ca 0.03%, Bi 0.02%, surplus Cu carry out gas atomization to molten alloyed copper later and prepare copper alloy powder, and copper alloy is molten Liquid temperature is controlled at 1060 DEG C；Molten alloyed copper mass flowrate is 1500 gram/minutes, and gas pressure is 3-4 MPa；Gas injection Angle is 30-34 °；Atomization gas is nitrogen, obtains copper alloy atomized powder, and obtained copper alloy atomized powder is put into ball milling Tank carries out ball milling, and filling with inert gas is protected when ball milling, rotational speed of ball-mill 150-180rpm, and control ratio of grinding media to material is 5：1, ball milling Time is 6 hours, obtains copper alloy powder；
By above-mentioned copper alloy powder and chromium carbide powder and boron carbide powder according to weight ratio：74：3：After 2 ratio mixing, make With heat isostatic apparatus 820-850 DEG C is warming up to heating rate for 40-60 DEG C/min, hot isostatic pressing pressure is 120-140MPa, Dwell time is 3 hours, then is cooled to room temperature with 20-40 DEG C/min of rate of temperature fall；Hot isostatic pressing blank is obtained, heat etc. is quiet Green compact material carries out first stage hot rolling, 720-750 DEG C of hot-rolled temperature using plate hot rolling machine, and single pass rolling reduction 5-7% passes through 3-5 passages, carry out first stage sintering, 800-820 DEG C of sintering temperature later, and sintering time 1-1.5 hours then carries out second Stage hot rolling, 690-720 DEG C of hot-rolled temperature, single pass rolling reduction 10-12% carry out second stage burning later by 5-7 passages Knot, 850-870 DEG C of sintering temperature, sintering time 2-4 hours obtain copper coin material；
Plasma bombardment is carried out to copper plate surface, power control is in 1000-1200W, bombardment time 10 minutes, later by copper coin Material is impregnated in surface treatment liquid, and dip time 2-5 minutes, surface treatment liquid includes following components：Difluoroacetic acid 30g/L, nitre Sour 10g/L, isethionic acid 7g/L, diethyl thiourea 3g/L, diethylenetriamine 3g/L, 2- mercaptobenzoxazole 0.36g/L are remaining It is water to measure, and cleaning, drying obtains the final table sheet for carrying Medical Instruments after dipping.

Claims (10)

1. a kind of Medical Instruments plummer includes the table sheet for carrying Medical Instruments,
Table sheet manufacturing method for carrying Medical Instruments includes：
Copper alloy is subjected to melting in smelting furnace and forms melt, copper alloying element percentage composition group is divided into：Cr 8-9%, Ti 0.7-0.9%, Al 0.7-0.9%, Sn 0.7-0.8%, Co 0.5-0.6%, V 0.4-0.6%, Ag 0.1-0.2%, In 0.05-0.08%, Ni 0.03-0.06%, Ca 0.03-0.04%, Bi 0.02-0.03%, surplus Cu later close copper Golden melt carries out gas atomization and prepares copper alloy powder, and molten alloyed copper temperature is controlled at 1060-1080 DEG C；Molten alloyed copper matter Amount flow rate is 1000-1500 gram/minutes, and gas pressure is 3-4 MPa；Gas injection angle is 30-34 °；Atomization gas is nitrogen Gas obtains copper alloy atomized powder, and obtained copper alloy atomized powder, which is put into ball grinder, carries out ball milling, and when ball milling fills indifferent gas Body is protected, rotational speed of ball-mill 150-180rpm, and control ratio of grinding media to material is 5-8：1, Ball-milling Time is 5-8 hours, obtains copper conjunction Bronze end；
By above-mentioned copper alloy powder and chromium carbide powder and boron carbide powder according to weight ratio：70-80：3-6：The ratio of 2-4 is mixed After conjunction, 820-850 DEG C is warming up to heating rate for 40-60 DEG C/min, hot isostatic pressing pressure is 120- using heat isostatic apparatus 140MPa, the dwell time is 3 hours, then is cooled to room temperature with 20-40 DEG C/min of rate of temperature fall；Hot isostatic pressing blank is obtained, it will Hot isostatic pressing blank carries out first stage hot rolling, 720-750 DEG C of hot-rolled temperature, single pass rolling reduction 5- using plate hot rolling machine 7%, by 3-5 passages, carry out first stage sintering later, 800-820 DEG C of sintering temperature, sintering time 1-1.5 hours, then Second stage hot rolling, 690-720 DEG C of hot-rolled temperature are carried out, single pass rolling reduction 10-12% carries out the later by 5-7 passages Two-stage is sintered, and 850-870 DEG C of sintering temperature, sintering time 2-4 hours obtains copper coin material；
Plasma bombardment is carried out to copper plate surface, power control later will in 1000-1200W, bombardment time 10-20 minutes Copper coin material is impregnated in surface treatment liquid, and dip time 2-5 minutes, surface treatment liquid includes following components：Difluoroacetic acid 10- 30g/L, nitric acid 10-15g/L, isethionic acid 5-10g/L, diethyl thiourea 2-5g/L, diethylenetriamine 1-3g/L, 2- sulfydryl Benzoxazole 0.3-0.4g/L, surplus are water, and cleaning, drying obtains the final deck plate for carrying Medical Instruments after dipping Material.
2. a kind of Medical Instruments plummer as described in claim 1, the molten alloyed copper temperature control is in 1065-1075 ℃；Molten alloyed copper mass flowrate is 1200-1400 gram/minutes.
3. a kind of Medical Instruments plummer as described in claim 1, the gas pressure is 3 MPa；Gas injection angle is 30-34°。
4. a kind of Medical Instruments plummer as described in claim 1, the rotational speed of ball-mill is 150rpm, and control ratio of grinding media to material is 8： 1, Ball-milling Time is 6 hours.
5. a kind of Medical Instruments plummer as described in claim 1, the copper alloy powder and chromium carbide powder and boron carbide Powder is according to weight ratio： 80：5：2 ratio.
6. a kind of Medical Instruments plummer as described in claim 1, the hot isostatic pressing pressure is 120MPa, and the dwell time is 3 hours.
7. a kind of Medical Instruments plummer as described in claim 1, the first stage hot rolling, 750 DEG C of hot-rolled temperature, single track Secondary drafts 5.5-6%.
8. a kind of Medical Instruments plummer as described in claim 1, the second stage sintering, 860 DEG C of sintering temperature, sintering Time 2 h.
9. a kind of Medical Instruments plummer as described in claim 1, the plasma bombardment power control is in 1000W, bombardment 10 minutes time.
10. a kind of Medical Instruments plummer as described in claim 1-9, the copper alloying element percentage composition group are divided into：Cr 8%, Ti 0.75%, Al 0.7%, Sn 0.7%, Co 0.6%, V 0.5%, Ag 0.1%, In 0.07%, Ni 0.05%, Ca 0.03%, Bi 0.02%, surplus Cu.
CN201810157996.5A 2018-02-25 2018-02-25 A kind of Medical Instruments plummer Pending CN108300893A (en)

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CN109371281A (en) * 2018-12-24 2019-02-22 宁波颂杰电器有限公司 A kind of brass alloys of high temperature heat-resistant corrosion and its fire cover of preparation

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Application publication date: 20180720