CN101708552A - Method for preparing antibacterial stainless cutter handle by using cutter manufacturing abrasive dust - Google Patents
Method for preparing antibacterial stainless cutter handle by using cutter manufacturing abrasive dust Download PDFInfo
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- CN101708552A CN101708552A CN200910194345A CN200910194345A CN101708552A CN 101708552 A CN101708552 A CN 101708552A CN 200910194345 A CN200910194345 A CN 200910194345A CN 200910194345 A CN200910194345 A CN 200910194345A CN 101708552 A CN101708552 A CN 101708552A
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Abstract
The invention relates to a method for preparing an antibacterial stainless cutter handle by using cutter manufacturing abrasive dust. The method comprises the following steps: sieving abrasive dust steel powder with grain size of 180 to 25 microns from the cutter manufacturing abrasive dust; preserving the temperature for 3 to 6 hours at the temperature of between 800 and 1,000 DEG C in the hydrogen when the dew point of the abrasive dust steel powder is 40 DEG C below zero, and then cooling the abrasive dust steel powder to room temperature along with a furnace to obtain annealed abrasive dust steel powder; adding antibacterial metal powder into the annealed abrasive dust steel powder to obtain antibacterial mixed powder; and molding, pre-sintering, forging, sintering and thermally treating the antibacterial mixed powder to obtain the antibacterial stainless cutter handle. The antibacterial metal ions in the antibacterial stainless cutter handle are dissolved out to play an antibacterial role.
Description
Technical field
The present invention relates to the powder metallurgical stainless steel preparation, specifically be meant the method for preparing the anti-bacteria stainless steel handle of a knife with system cutter abrasive dust.
Background technology
Stainless steel knife enjoys the consumer to favor owing to having attractive in appearance, sharp, anti-corrosion characteristics.The stainless steel knife technological process of production is: material → punch forming → heat treatment → water mill → welding → sanding and polishing → polish → put the first edge on a knife or a pair of scissors → clean → check → finished product is opened in raw material → shearing.Water mill in the production process, put the first edge on a knife or a pair of scissors, operations such as sharpening and polishing produce the useless slurries of being made up of stainless steel powder, sand grains, fiber, organic binder bond and water in a large number, the stainless steel powder in the slurry that gives up and the mixture (being commonly called as water mill mud) of sand grains, fiber, organic binder bond on a small quantity can be separated through magnetic separation, precipitation.The main component of water mill mud is a powder of stainless steel, wherein also contains a small amount of abrasive material, organic binder bond and non-metallic fibers.There is Yangjiang, the Guangdong Province municipalization haberdashery and hardware cutter of the title of " Chinese cutter is cut the industrial base " to cut more than 1500 families of manufacturing enterprise, contains available stainless steel powder above 10,000 tons in the annual water mill mud that produces.Contain a large amount of non-renewable precious metal elemental chromium, molybdenum, alum etc. in these powder of stainless steel, at present to cut the water mill mud that industry produces mainly be that replenishers as alloying element (mainly being chromium) add in stainless steel smelting process in the molten steel that melts to the Yangjiang cutter, this reflow process alloying element scaling loss is very big, the alloying element utilization rate is extremely low, causes the serious waste of precious resources.Present stage chromium nearly 70,000 yuans per ton of market price, how rationally to utilize water mill mud resource,, save rare expensive mineral resources for the highly efficient regeneration utilization of valuable metallic element chromium resource, reduce the poisonous metal waste discharge, it is significant to reduce manufacturing enterprise's material cost.
Discover that Ag, Co, Ni, Al, Zn, Cu etc. have certain antibiotic property, especially with silver, the effect of copper is best.The antibiotic mechanism of metal ion antibacterial agent mainly is contact sterilization, when the negative charged surface of mushroom is adsorbed certain density metal ion, metal ion just can be adsorbed onto on the protein of cell membrane, the mercaptan combination of protein in energy and bacterium when concentration increases, make microorganism can not carry out energetic supersession, thereby cause protein denaturation, destroy its physiological function.Smelt the anti-bacteria stainless steel of the method acquisition of adding copper, silver and cupric, the silver-colored anti-bacteria stainless steel for preparing by material surface modifying technology with integral body, demonstrate excellent antibacterial effect.Utilize PM technique to make material have required antibacterial functions by adjusting composition very expediently.About preparing martensitic stain less steel with powder metallurgy process and utilizing powder injection-molded method to prepare the existing report of cupric anti-bacteria stainless steel, patent of invention 200710026489.X discloses the preparation method of powder metallurgy composite antimicrobial stainless steel instrument.What the powder metallurgical stainless steel production of articles was used at present is pure metal (alloy) powder.By contrast, the moulding and the sintering character of system cutter abrasive dust obviously are different from the pure stainless steel powder that atomization is produced, main cause is because the various Grinding Process of cutter all are to carry out under the high frictional force state of high speed, the abrasive dust powder surface state that produces is very complicated, there are oxidation and work hardening, particle shape, size distribution state be irregular also, therefore, the moulding that utilizes abrasive dust powder preparation anti-bacteria stainless steel goods and sintering process are with to use the atomizing stainless steel powder to prepare powder metallurgical stainless steel technology significantly different.The abrasive dust that utilizes cutter to cut to produce in the production process is made the anti-bacteria stainless steel goods and is not seen any relevant report as yet.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art part, recycle cutter cut a large amount of abrasive dusts that industry produce exactly by resource for purpose of the present invention, and the preparation method who utilizes system cutter abrasive dust production powder metallurgy anti-bacteria stainless steel handle of a knife is provided.
The present invention utilizes pre-burning-power forging-sintering method on the basis of abrasive dust modification and suitable alloying, make the stainless steel handle of a knife with antibacterial functions with system cutter abrasive dust.This product can reach antibacterial effect by the adding proportion of adjusting antiseptic elements expediently; Can produce the product of various complicated shapes easily.Utilize the stainless steel powder in the water mill mud that the cutter production process produces, the cost of raw material is low, and product has the great market competitiveness, and has reduced the discharging of harmful solid waste, realized the resource recycling of valuable metal, economic and social benefit is remarkable.
The present invention also aims to provide the powder metallurgy anti-bacteria stainless steel handle of a knife of described method preparation.
Of the present invention with making the method that the cutter abrasive dust prepares the anti-bacteria stainless steel handle of a knife, comprise the steps:
(1) sieving out particle size from system cutter abrasive dust is 180 microns～25 microns abrasive dust comminuted steel shot; Described abrasive dust is cut the abrasive dust that produces in the process for making cutter with martensitic stain less steel;
(2) below dew point-40 ℃, cool to (1) the abrasive dust comminuted steel shot made of step with the furnace room temperature in 800～1000 ℃ of insulations after 3～6 hours in the hydrogen, make annealed state abrasive dust comminuted steel shot;
(3) at the pure Fe powder that in the annealed state abrasive dust comminuted steel shot of (2) step processing, adds 1～10 part of weight of 90～99 parts of weight, make premixed powder; In the premixed powder of 90～99 parts of weight, add the pure Cr powder of 1～10 part of weight, make mixed powder; In the mixed powder of 90～99 parts of weight, add the antibacterial metal powder of 1～10 part of weight, make antibiotic mixed powder;
(4) the antibiotic mixed powder moulding that step (3) is made was carried out 600～800 ℃ of presintering 1～4 hour, 650～780 ℃ of forgings, 1200～1400 ℃ of sintering 1～4 hour then, made the handle of a knife base;
(5) the handle of a knife base that step (4) is made carries out 1000～1150 ℃, quenches in 0.5～2 hour, 400～700 ℃, and 1～4 hour temper is made described anti-bacteria stainless steel handle of a knife.
Described antibacterial metal powder comprises one or more mixtures in Ag powder, Cu powder, the Zn powder.
Forming method comprises mold pressing or injection moulding described in the step (4).
The present invention with method for sieving just the abrasive dust comminuted steel shot from system cutter abrasive dust, separate, utilize hydrogen treat to improve the surface state of system cutter abrasive dust and moulding, sintering process characteristic, in the abrasive dust after hydrogen treat, add pure Fe powder, pure Cr powder and antiseptic elements Ag, Cu, Zn powder and be made into antibiotic mixed powder, by moulding, sintering and heat treatment, make stainless steel handle of a knife with antibacterial functions.Utilization has the stripping of Ag, Cu, Zn ion of antibacterial effect etc. and brings into play antibacterial action.
The present invention compared with prior art has the following advantages and beneficial effect:
1. adopt system cutter abrasive dust to prepare the anti-bacteria stainless steel handle of a knife, be easy to make the handle of a knife of various complicated shapes, can reach antibiotic effect by adding antiseptic elements very expediently, compare with the atomizing stainless steel powder that adopts fetch long price, the cost of raw material is low, can significantly reduce production costs, product has the great market competitiveness;
2. adopt system cutter abrasive dust to prepare the anti-bacteria stainless steel handle of a knife, reduced the discharging of harmful solid waste, realized that the resource of valuable metal is recycled obvious social benefit.
The specific embodiment
The present invention is further illustrated below in conjunction with embodiment, but embodiments of the present invention are not limited thereto.
Embodiment 1
(1) sieving out particle size from system cutter abrasive dust is 180 microns～25 microns abrasive dust comminuted steel shot;
(2) below dew point-40 ℃, cool to (1) the abrasive dust comminuted steel shot made of step with the furnace room temperature in 800 ℃ of insulations after 6 hours in the hydrogen, make annealed state abrasive dust comminuted steel shot;
(3) at the pure Fe powder that in the annealed state abrasive dust comminuted steel shot of (2) step processing, adds 10 parts of weight of 90 parts of weight, make premixed powder; In the premixed powder of 99 parts of weight, add the pure Cr powder of 1 part of weight, make mixed powder; In the mixed powder of 90 parts of weight, add the Ag powder of 10 parts of weight, make antibiotic mixed powder;
(4) the antibiotic mixed powder mould pressing method moulding that step (3) is made was carried out 600 ℃ of presintering 4 hours, 700 ℃ of forgings, 1400 ℃ of sintering 1 hour then, made the handle of a knife base;
(5) the handle of a knife base that step (4) is made carries out 1000 ℃, quenches in 2 hours, 700 ℃, and 1 hour temper is made described anti-bacteria stainless steel handle of a knife.
After testing, the anti-bacteria stainless steel handle of a knife hardness that makes is 40HRC.With " adhesive film method " contrast test that japanese food analysis center proposes, cultivate observation through on specimen surface, carrying out 35 ℃ * 24h Escherichia coli and staphylococcus aureus, antibacterial effect has reached more than 98%.
Embodiment 2
(1) sieving out particle size from system cutter abrasive dust is 180 microns～25 microns abrasive dust comminuted steel shot;
(2) below dew point-40 ℃, cool to (1) the abrasive dust comminuted steel shot made of step with the furnace room temperature in 1000 ℃ of insulations after 3 hours in the hydrogen, make annealed state abrasive dust comminuted steel shot;
(3) at the pure Fe powder that in the annealed state abrasive dust comminuted steel shot of (2) step processing, adds 1 part of weight of 99 parts of weight, make premixed powder; In the premixed powder of 95 parts of weight, add the pure Cr powder of 5 parts of weight, make mixed powder; In the mixed powder of 99 parts of weight, add the Cu powder of 1 part of weight, make antibiotic mixed powder;
(4) the antibiotic mixed powder injection moulding method moulding that step (3) is made was carried out 700 ℃ of presintering 3 hours, 650 ℃ of forgings, 1200 ℃ of sintering 4 hours then, made the handle of a knife base;
(5) the handle of a knife base that step (4) is made carries out 1100 ℃, quenches in 1.5 hours, 400 ℃, and 4 hours temper are made described anti-bacteria stainless steel handle of a knife.
After tested, described anti-bacteria stainless steel handle of a knife hardness 52HRC; With " adhesive film method " contrast test that japanese food analysis center proposes, cultivate observation through on specimen surface, carrying out 35 ℃ * 24h Escherichia coli and staphylococcus aureus, antibacterial effect has reached 90%.
Embodiment 3
(1) sieving out particle size from system cutter abrasive dust is 180 microns～25 microns abrasive dust comminuted steel shot;
(2) below dew point-40 ℃, cool to (1) the abrasive dust comminuted steel shot made of step with the furnace room temperature in 950 ℃ of insulations after 2 hours in the hydrogen, make annealed state abrasive dust comminuted steel shot;
(3) at the pure Fe powder that in the annealed state abrasive dust comminuted steel shot of (2) step processing, adds 5 parts of weight of 95 parts of weight, make premixed powder; In the premixed powder of 90 parts of weight, add the pure Cr powder of 10 parts of weight, make mixed powder; In the mixed powder of 90 parts of weight, add the Zn powder of 10 parts of weight, make antibiotic mixed powder;
(4) the antibiotic mixed powder injection moulding method moulding that step (3) is made was carried out 800 ℃ of presintering 1 hour, 780 ℃ of forgings, 1300 ℃ of sintering 3 hours then, made the handle of a knife base;
(5) the handle of a knife base that step (4) is made carries out 1150 ℃, quenches in 0.5 hour, 600 ℃, and 2 hours temper are made described anti-bacteria stainless steel handle of a knife.
After tested, anti-bacteria stainless steel handle of a knife hardness 42 HRC; With " adhesive film method " contrast test that japanese food analysis center proposes, cultivate observation through on specimen surface, carrying out 35 ℃ * 24h Escherichia coli and staphylococcus aureus, antibacterial effect has reached 95%.
Embodiment 4
(1) sieving out particle size from system cutter abrasive dust is 180 microns～25 microns abrasive dust comminuted steel shot;
(2) below dew point-40 ℃, cool to (1) the abrasive dust comminuted steel shot made of step with the furnace room temperature in 900 ℃ of insulations after 5 hours in the hydrogen, make annealed state abrasive dust comminuted steel shot;
(3) at the pure Fe powder that in the annealed state abrasive dust comminuted steel shot of (2) step processing, adds 8 parts of weight of 92 parts of weight, make premixed powder; In the premixed powder of 94 parts of weight, add the pure Cr powder of 6 parts of weight, make mixed powder; In the mixed powder of 80 parts of weight, add the Cu powder of 5 parts of weight and the Ag powder of 5 parts of weight, make antibiotic mixed powder;
(4) the antibiotic mixed powder mould pressing method moulding that step (3) is made was carried out 650 ℃ of presintering 3.5 hours, 750 ℃ of forgings, 1360 ℃ of sintering 2 hours then, made the handle of a knife base;
(5) the handle of a knife base that step (4) is made carries out 1050 ℃, quenches in 1.5 hours, 500 ℃, and 3 hours temper are made described anti-bacteria stainless steel handle of a knife.
After tested, anti-bacteria stainless steel handle of a knife hardness 46HRC; With " adhesive film method " contrast test that japanese food analysis center proposes, cultivate observation through on specimen surface, carrying out 35 ℃ * 24h Escherichia coli and staphylococcus aureus, antibacterial effect has reached 99%.
Embodiment 5
(1) sieving out particle size from system cutter abrasive dust is 180 microns～25 microns abrasive dust comminuted steel shot;
(2) below dew point-40 ℃, cool to (1) the abrasive dust comminuted steel shot made of step with the furnace room temperature in 850 ℃ of insulations after 5.5 hours in the hydrogen, make annealed state abrasive dust comminuted steel shot;
(3) at the pure Fe powder that in the annealed state abrasive dust comminuted steel shot of (2) step processing, adds 3 parts of weight of 97 parts of weight, make premixed powder; In the premixed powder of 91 parts of weight, add the pure Cr powder of 9 parts of weight, make mixed powder; In the mixed powder of 99 parts of weight, add the Zn powder of 1 part of weight, make antibiotic mixed powder;
(4) the antibiotic mixed powder injection moulding method moulding that step (3) is made was carried out 750 ℃ of presintering 2.5 hours, 680 ℃ of forgings, 1280 ℃ of sintering 3.5 hours then, made the handle of a knife base;
(5) the handle of a knife base that step (4) is made carries out 1075 ℃, quenches in 1 hour, 450 ℃, and 3.5 hours temper are made described anti-bacteria stainless steel handle of a knife.
After tested, anti-bacteria stainless steel handle of a knife hardness 48 HRC; With " adhesive film method " contrast test that japanese food analysis center proposes, cultivate observation through on specimen surface, carrying out 35 ℃ * 24h Escherichia coli and staphylococcus aureus, antibacterial effect has reached 90%.
Embodiment 6
(1) sieving out particle size from system cutter abrasive dust is 180 microns～25 microns abrasive dust comminuted steel shot;
(2) below dew point-40 ℃, cool to (1) the abrasive dust comminuted steel shot made of step with the furnace room temperature in 900 ℃ of insulations after 3 hours in the hydrogen, make annealed state abrasive dust comminuted steel shot;
(3) at the pure Fe powder that in the annealed state abrasive dust comminuted steel shot of (2) step processing, adds 7 parts of weight of 93 parts of weight, make premixed powder; In the premixed powder of 92 parts of weight, add the pure Cr powder of 8 parts of weight, make mixed powder; In the mixed powder of 90 parts of weight, add the Cu powder of 10 parts of weight, make antibiotic mixed powder;
(4) the antibiotic mixed powder mould pressing method moulding that step (3) is made was carried out 600 ℃ of presintering 3 hours, 700 ℃ of forgings, 1400 ℃ of sintering 2 hours then, made the handle of a knife base;
(5) the handle of a knife base that step (4) is made carries out 1125 ℃, quenches in 1 hour, 550 ℃, and 2.5 hours temper are made described anti-bacteria stainless steel handle of a knife.
After tested, anti-bacteria stainless steel handle of a knife hardness 42 HRC; With " adhesive film method " contrast test that japanese food analysis center proposes, cultivate observation through on specimen surface, carrying out 35 ℃ * 24h Escherichia coli and staphylococcus aureus, antibacterial effect has reached 97%.
Embodiment 7
(1) sieving out particle size from system cutter abrasive dust is 180 microns～25 microns abrasive dust comminuted steel shot;
(2) below dew point-40 ℃, cool to (1) the abrasive dust comminuted steel shot made of step with the furnace room temperature in 950 ℃ of insulations after 4 hours in the hydrogen, make annealed state abrasive dust comminuted steel shot;
(3) at the pure Fe powder that in the annealed state abrasive dust comminuted steel shot of (2) step processing, adds 4 parts of weight of 96 parts of weight, make premixed powder; In the premixed powder of 93 parts of weight, add the pure Cr powder of 7 parts of weight, make mixed powder; In the mixed powder of 99 parts of weight, add the Ag powder of 1 part of weight, make antibiotic mixed powder;
(4) the antibiotic mixed powder mould pressing method moulding that step (3) is made was carried out 700 ℃ of presintering 2.5 hours, 650 ℃ of forgings, 1250 ℃ of sintering 3 hours then, made the handle of a knife base;
(5) the handle of a knife base that step (4) is made carries out 1000 ℃, quenches in 1.5 hours, 650 ℃, and 2 hours temper are made described anti-bacteria stainless steel handle of a knife.
After tested, anti-bacteria stainless steel handle of a knife hardness 40 HRC; With " adhesive film method " contrast test that japanese food analysis center proposes, cultivate observation through on specimen surface, carrying out 35 ℃ * 24h Escherichia coli and staphylococcus aureus, antibacterial effect has reached 90%.
Embodiment 8
(1) sieving out particle size from system cutter abrasive dust is 180 microns～25 microns abrasive dust comminuted steel shot;
(2) below dew point-40 ℃, cool to (1) the abrasive dust comminuted steel shot made of step with the furnace room temperature in 1000 ℃ of insulations after 3.5 hours in the hydrogen, make annealed state abrasive dust comminuted steel shot;
(3) at the pure Fe powder that in the annealed state abrasive dust comminuted steel shot of (2) step processing, adds 8 parts of weight of 92 parts of weight, make premixed powder; In the premixed powder of 97 parts of weight, add the pure Cr powder of 3 parts of weight, make mixed powder; In the mixed powder of 90 parts of weight, add the Ag powder of 2 parts of weight and the Zn powder of 8 parts of weight, make antibiotic mixed powder;
(4) the antibiotic mixed powder injection moulding method moulding that step (3) is made was carried out 800 ℃ of presintering 2 hours, 780 ℃ of forgings, 1200 ℃ of sintering 4 hours then, made the handle of a knife base;
(5) the handle of a knife base that step (4) is made carries out 1150 ℃, quenches in 1 hour, 700 ℃, and 2 hours temper are made described anti-bacteria stainless steel handle of a knife.
After tested, anti-bacteria stainless steel handle of a knife hardness 38 HRC; With " adhesive film method " contrast test that japanese food analysis center proposes, cultivate observation through on specimen surface, carrying out 35 ℃ * 24h Escherichia coli and staphylococcus aureus, antibacterial effect has reached 95%.
Embodiment 9
(1) sieving out particle size from system cutter abrasive dust is 180 microns～25 microns abrasive dust comminuted steel shot;
(2) below dew point-40 ℃, cool to (1) the abrasive dust comminuted steel shot made of step with the furnace room temperature in 850 ℃ of insulations after 5 hours in the hydrogen, make annealed state abrasive dust comminuted steel shot;
(3) at the pure Fe powder that in the annealed state abrasive dust comminuted steel shot of (2) step processing, adds 7 parts of weight of 93 parts of weight, make premixed powder; In the premixed powder of 96 parts of weight, add the pure Cr powder of 4 parts of weight, make mixed powder; In the mixed powder of 92 parts of weight, add the Cu powder of 4 parts of weight and the Zn powder of 4 parts of weight, make antibiotic mixed powder;
(4) the antibiotic mixed powder mould pressing method moulding that step (3) is made was carried out 650 ℃ of presintering 4 hours, 700 ℃ of forgings, 1300 ℃ of sintering 3 hours then, made the handle of a knife base;
(5) the handle of a knife base that step (4) is made carries out 1000 ℃, quenches in 1.5 hours, 600 ℃, and 3 hours temper are made described anti-bacteria stainless steel handle of a knife.
After tested, anti-bacteria stainless steel handle of a knife hardness 40 HRC; With " adhesive film method " contrast test that japanese food analysis center proposes, cultivate observation through on specimen surface, carrying out 35 ℃ * 24h Escherichia coli and staphylococcus aureus, antibacterial effect has reached 92%.
Embodiment 10
(1) sieving out particle size from system cutter abrasive dust is 180 microns～25 microns abrasive dust comminuted steel shot;
(2) below dew point-40 ℃, cool to (1) the abrasive dust comminuted steel shot made of step with the furnace room temperature in 900 ℃ of insulations after 4 hours in the hydrogen, make annealed state abrasive dust comminuted steel shot;
(3) at the pure Fe powder that in the annealed state abrasive dust comminuted steel shot of (2) step processing, adds 6 parts of weight of 94 parts of weight, make premixed powder; In the premixed powder of 98 parts of weight, add the pure Cr powder of 2 parts of weight, make mixed powder; In the mixed powder of 94 parts of weight, add the Ag powder of 4 parts of weight and the Cu powder of 2 parts of weight, make antibiotic mixed powder;
(4) the antibiotic mixed powder mould pressing method moulding that step (3) is made was carried out 750 ℃ of presintering 3 hours, 680 ℃ of forgings, 1350 ℃ of sintering 2.5 hours then, made the handle of a knife base;
(5) the handle of a knife base that step (4) is made carries out 1050 ℃, quenches in 2 hours, 500 ℃, and 4 hours temper are made described anti-bacteria stainless steel handle of a knife.
After tested, anti-bacteria stainless steel handle of a knife hardness 46 HRC; With " adhesive film method " contrast test that japanese food analysis center proposes, cultivate observation through on specimen surface, carrying out 35 ℃ * 24h Escherichia coli and staphylococcus aureus, antibacterial effect has reached 96%.
Claims (3)
1. prepare the method for anti-bacteria stainless steel handle of a knife with system cutter abrasive dust, it is characterized in that comprising the steps:
(1) sieving out particle size from system cutter abrasive dust is 180 microns～25 microns abrasive dust comminuted steel shot; Described abrasive dust is cut the abrasive dust that produces in the process for making cutter with martensitic stain less steel;
(2) below dew point-40 ℃, cool to (1) the abrasive dust comminuted steel shot made of step with the furnace room temperature in 800～1000 ℃ of insulations after 3～6 hours in the hydrogen, make annealed state abrasive dust comminuted steel shot;
(3) at the pure Fe powder that in the annealed state abrasive dust comminuted steel shot of (2) step processing, adds 1～10 part of weight of 90～99 parts of weight, make premixed powder; In the premixed powder of 90～99 parts of weight, add the pure Cr powder of 1～10 part of weight, make mixed powder; In the mixed powder of 90～99 parts of weight, add the antibacterial metal powder of 1～10 part of weight, make antibiotic mixed powder;
(4) the antibiotic mixed powder moulding that step (3) is made was carried out 600～800 ℃ of presintering 1～4 hour, 650～780 ℃ of forgings, 1200～1400 ℃ of sintering 1～4 hour then, made the handle of a knife base;
(5) the handle of a knife base that step (4) is made carries out 1000～1150 ℃, quenches in 0.5～2 hour, 400～700 ℃, and 1～4 hour temper is made described anti-bacteria stainless steel handle of a knife.
2. preparation method according to claim 1 is characterized in that described antibacterial metal powder comprises one or more mixtures in Ag powder, Cu powder, the Zn powder.
3. preparation method according to claim 1 is characterized in that the forming method in the step (4) comprises mold pressing or injection moulding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910194345A CN101708552A (en) | 2009-12-01 | 2009-12-01 | Method for preparing antibacterial stainless cutter handle by using cutter manufacturing abrasive dust |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910194345A CN101708552A (en) | 2009-12-01 | 2009-12-01 | Method for preparing antibacterial stainless cutter handle by using cutter manufacturing abrasive dust |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105568161A (en) * | 2015-12-22 | 2016-05-11 | 唐艺峰 | High-wear-resistance stainless steel and preparation method thereof |
| CN107457399A (en) * | 2017-08-18 | 2017-12-12 | 苏州曼里尼斯金属科技有限公司 | A kind of antibacterial metal material of indoor decoration |
| CN112643029A (en) * | 2019-10-10 | 2021-04-13 | 银未来株式会社 | Method for manufacturing silver sterilizing cutting tool |
-
2009
- 2009-12-01 CN CN200910194345A patent/CN101708552A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105568161A (en) * | 2015-12-22 | 2016-05-11 | 唐艺峰 | High-wear-resistance stainless steel and preparation method thereof |
| CN107457399A (en) * | 2017-08-18 | 2017-12-12 | 苏州曼里尼斯金属科技有限公司 | A kind of antibacterial metal material of indoor decoration |
| CN112643029A (en) * | 2019-10-10 | 2021-04-13 | 银未来株式会社 | Method for manufacturing silver sterilizing cutting tool |
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