CN110253023A - A kind of kitchen knife and its manufacturing method with diamond - Google Patents

A kind of kitchen knife and its manufacturing method with diamond Download PDF

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Publication number
CN110253023A
CN110253023A CN201910675422.1A CN201910675422A CN110253023A CN 110253023 A CN110253023 A CN 110253023A CN 201910675422 A CN201910675422 A CN 201910675422A CN 110253023 A CN110253023 A CN 110253023A
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CN
China
Prior art keywords
sintered body
cutter hub
manufacturing
metal powder
sintering
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910675422.1A
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Chinese (zh)
Inventor
莫仕栋
吴远谋
谢月光
李映川
陈六庆
吴启团
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Yangjiang Tianjiao Household Products Manufacturing Co Ltd
Original Assignee
Yangjiang Tianjiao Household Products Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yangjiang Tianjiao Household Products Manufacturing Co Ltd filed Critical Yangjiang Tianjiao Household Products Manufacturing Co Ltd
Priority to CN201910675422.1A priority Critical patent/CN110253023A/en
Publication of CN110253023A publication Critical patent/CN110253023A/en
Pending legal-status Critical Current

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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
    • 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
    • B22F3/10—Sintering only
    • B22F3/1003—Use of special medium during sintering, e.g. sintering aid
    • B22F3/1007—Atmosphere
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • 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
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
    • 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
    • C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C30/00—Alloys containing less than 50% by weight of each constituent
    • C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0207—Using a mixture of prealloyed powders or a master alloy
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
    • 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
    • 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
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Composite Materials (AREA)
  • Powder Metallurgy (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Knives (AREA)

Abstract

The present invention provides a kind of kitchen knife and its manufacturing method with diamond, is related to Kitchen knife technical field, and the manufacturing method is the following steps are included: choose the diamond particles that granularity is 20 μm to 100 μm；Carcass metal powder is prepared by water-gas combined atomization, the performance parameter of carcass metal powder includes: granularity D50It is 8 μm to 10 μm, oxygen mass fraction is less than or equal to 0.5%, and carbon mass fraction is 0.5 to 1.5%；Diamond particles are mixed with carcass metal powder, form mixing material；Mixing material is successively carried out to pre-sintering and double sintering, forms sintered body；Cutter hub is chosen, sintered body is fixed on cutter hub, and successively polished and put the first edge on a knife or a pair of scissors.The cutter includes cutter hub and sintered body, and sintered body is fixed on cutter hub by above-mentioned manufacturing method.

Description

A kind of kitchen knife and its manufacturing method with diamond
Technical field
The present invention relates to Kitchen knife technical fields, are specifically related to a kind of culinary cutter and its system with diamond Make method.
Background technique
Culinary cutter is typically all to be fabricated using cutting tool steel, and cutter hub and blade are identical material.Conventional knives The hardness of tool typically up to only reaches 50 to 60HRC, after cutting or cutting for a long time, blade is easy to cause to be passivated.Therefore, traditional Cutter be typically necessary in use for some time blade ground, to keep the sharpness of blade.
Summary of the invention
The first object of the present invention be to provide it is a kind of can improve keen edge degree and hardness, reduce the band Buddha's warrior attendant of sharpening number The manufacturing method of the kitchen knife of stone.
The second object of the present invention be to provide it is a kind of be fabricated by the above-mentioned manufacture method with for kitchen use of diamond Cutter.
In order to realize the first above-mentioned purpose, a kind of manufacturer of the kitchen knife with diamond provided by the invention Method, comprising the following steps: choose the diamond particles that granularity is 20 μm to 100 μm；Carcass is prepared by water-gas combined atomization Metal powder, the performance parameter of carcass metal powder include: granularity D50It is 8 μm to 10 μm, oxygen mass fraction is less than or equal to 0.5%, carbon mass fraction is 0.5 to 1.5%；Diamond particles are mixed with carcass metal powder, form mixing material；It will mix Condensation material successively carries out pre-sintering and double sintering, forms sintered body；Cutter hub is chosen, sintered body is fixed on cutter hub, and according to It is secondary to be polished and put the first edge on a knife or a pair of scissors.
By above scheme as it can be seen that diamond particles by inlaying appropriate granularity on blade, diamond particle surfaces tool There is a more seamed edge, when cutting, the seamed edge of diamond can be used as cutting edge port, and micro- zigzag is formed at blade, be conducive to mention The sharpness of high blade；Since diamond particles have great hardness and wearability, diamond particles are embedded on blade Afterwards, blade also hardness and wearability with higher is conducive to the hardness and service life that improve blade, advantageously reduces cutter Sharpening number.
Further embodiment is, carcass metal powder include: by mass percentage Cr:10% to 18%, Ni:5% extremely 15%, Mo:2% are to 10%, Mn:0.1% to 1.0%, Cu:1.0% to 5.0%, Nb:0.5% to 1.5%, surplus Fe.
By above scheme as it can be seen that by adding suitable Mo, Ni and Mn element, not only contribute to the intensity for improving blade and Corrosion resistance also advantageously improves the connectivity of carcass metal powder and diamond particles, diamond particles is inlayed In carcass, diamond particles and carcass are conducive to be formed in diamond particle surfaces by chemical bonding and physical bond Securely fine and close combination interface, prevents diamond particles from falling off.
Further embodiment is pre-sintered in hot press, wherein the pressure of hot press is 42Mpa, pre-burning junction temperature Degree is 600 DEG C to 1300 DEG C, and the pre-sintering time is 8h to 20h.
By above scheme as it can be seen that by being pre-sintered in hot press, the molding of mixing material is not only contributed to, moreover it is possible to obtain The pre-sintered body that crystal grain is tiny, consistency is high.
Further embodiment is to carry out double sintering in a vacuum furnace, wherein the temperature of double sintering be 1300 DEG C extremely 1600 DEG C, the double sintering time is 18h to 30h.
By above scheme as it can be seen that being conducive to further increase sintered density by double sintering in a vacuum furnace, so that The metal component of sintered body is uniformly spread, and component segregation and sintering internal stress is eliminated, so that diamond particles and carcass metal powder It is last sufficiently to combine, further prevent diamond particles to fall off.
Further embodiment is that sintered body is fixed on the two-sided blade of cutter hub by the method for laser welding.
In order to realize the second above-mentioned purpose, a kind of kitchen knife with diamond provided by the invention, including cutter hub And sintered body, sintered body are fixed on cutter hub by above-mentioned manufacturing method.
Specific embodiment
Kitchen knife manufacturing method embodiment
In step S01, the diamond particles that granularity is 20 μm to 100 μm are chosen.
In step S02, carcass metal powder, the performance parameter of carcass metal powder are prepared by water-gas combined atomization It include: granularity D50It is 8 μm to 10 μm, oxygen mass fraction is less than or equal to 0.5%, and carbon mass fraction is 0.5 to 1.5%.Wherein, tire Body metal powder includes: Cr:10% to 18%, Ni:5% to 15%, Mo:2% to 10%, Mn:0.1% by mass percentage To 1.0%, Cu:1.0% to 5.0%, Nb:0.5% to 1.5%, surplus Fe.
In step S03, by the diamond particles of selection and carcass metal powder according to 1:12% in three-dimensional material mixer Percent by volume to 35% is sufficiently mixed, and forms powdered mixing material.Three-dimensional material mixer can carry out X, Y, Z axis three Direction movement, when mixing, not only carries out rotation, also revolves, can accelerate the diffusion and flowing of mixing material, also be avoided that object The gravity segregation of material guarantees the uniformity of mixing material.
Then step S04 is executed, mixing material is successively carried out to pre-sintering and double sintering, forms sintered body.
It is pre-sintered: uniformly mixed mixing material being filled into the mold of hot press, by the electricity for constantly changing hot press Pressure adjusts electric current, carries out pressurized, heated from uniaxial direction, makes to be sintered and forms while carrying out, obtains pre-sintered body.In hot pressing During machine, pre-sintering temperature is 600 DEG C to 1300 DEG C, and the pre-sintering time is 8h to 20h, pressure 42Mpa.
Double sintering: double sintering is carried out by being put into vacuum drying oven by the mixing material being pre-sintered, obtains sintered body.Its In, the temperature of double sintering is 1300 DEG C to 1600 DEG C, and the double sintering time is 18h to 30h, and pressure is -0.09Mpa.
Then step S05 is executed, cutter hub is chosen, sintered body is fixed on cutter hub.The present embodiment preferably passes through Laser Welding Sintered body is fixed on the two sides of the blade of cutter hub by the method connect.
Then step S06 is executed, the cutter hub after welding sintered body is polished and put the first edge on a knife or a pair of scissors, for kitchen use of high rigidity is obtained Cutter.
Embodiment 1
The mass percent of carcass metal powder are as follows: Cr:10%, Ni:15%, Mo:2%, Mn:0.5%, Cu:1.0%, Nb:0.5%, Fe surplus.
The preparation method of the kitchen knife of high rigidity includes: to choose the diamond particles that granularity is 20 μm first, will be golden Hard rock particle and carcass metal powder are sufficiently mixed.Then it being pre-sintered in hot press, the temperature of pre-sintering is 1000 DEG C, The pre-sintering time is 15h.Then double sintering is carried out in a vacuum furnace, obtains sintered body, the temperature of double sintering is 1500 DEG C, Soaking time is 23h.Then sintered body is welded on the two sides side of cutter hub blade by laser-beam welding machine, then to welding Cutter hub after sintered body is polished and is put the first edge on a knife or a pair of scissors, and the culinary cutter of finished product is obtained.
The hardness for the kitchen knife that the present embodiment is prepared be 66HRC, good toughness, by long-term use after, sharpness Keep good, diamond particles are without falling off.
Embodiment 2
The mass percent of carcass metal powder are as follows: Cr:15%, Ni:10%, Mo:10%, Mn:0.1%, Cu:3%, Nb:0.6%, Fe surplus.
The preparation method of the kitchen knife of high rigidity includes: to choose the diamond particles that granularity is 60 μm first, will be golden Hard rock particle and carcass metal powder are sufficiently mixed.Then it being pre-sintered in hot press, the temperature of pre-sintering is 600 DEG C, The pre-sintering time is 20h.Then double sintering is carried out in a vacuum furnace, obtains sintered body, the temperature of double sintering is 1600 DEG C, Soaking time is 22h.Then sintered body is welded on the two sides side of cutter hub blade by laser-beam welding machine, then to welding Cutter hub after sintered body is polished and is put the first edge on a knife or a pair of scissors, and the culinary cutter of finished product is obtained.
The kitchen knife hardness that the present embodiment is prepared be 65HRC, good toughness, by long-term use after, sharpness protect Hold good, diamond particles are without falling off.
Embodiment 3
The mass percent of carcass metal powder are as follows: Cr:18%, Ni:5%, Mo:8%, Mn:1.0%, Cu:5.0%, Nb:1.5%, Fe surplus.
The preparation method of the kitchen knife of high rigidity includes: to choose the diamond particles that granularity is 100 μm first, will be golden Hard rock particle and carcass metal powder are sufficiently mixed.Then it being pre-sintered in hot press, the temperature of pre-sintering is 1300 DEG C, The pre-sintering time is 8h.Then double sintering is carried out in a vacuum furnace, obtains sintered body, the temperature of double sintering is 1300 DEG C, Soaking time is 30h.Then sintered body is welded on the two-sided blade of cutter hub by laser-beam welding machine, then welding is sintered Cutter hub after body is polished and is put the first edge on a knife or a pair of scissors, and the culinary cutter of finished product is obtained.
The kitchen knife hardness that the present embodiment is prepared be 65HRC, good toughness, by long-term use after, sharpness protect Hold good, diamond particles are without falling off.
Blade embodiments
A kind of kitchen knife with diamond, including cutter hub and sintered body, sintered body manufacture by the above-mentioned manufacture method And it is fixed on the two sides side of cutter hub blade.

Claims (6)

1. a kind of manufacturing method of the kitchen knife with diamond, it is characterised in that: the following steps are included:
Choose the diamond particles that granularity is 20 μm to 100 μm；
Carcass metal powder is prepared by water-gas combined atomization, the performance parameter of the carcass metal powder includes: granularity D50 It is 8 μm to 10 μm, oxygen mass fraction is less than or equal to 0.5%, and carbon mass fraction is 0.5 to 1.5%；
The diamond particles are mixed with the carcass metal powder, form mixing material；
The mixing material is successively carried out to pre-sintering and double sintering, forms sintered body；
Cutter hub is chosen, the sintered body is fixed on the cutter hub, and successively polished and put the first edge on a knife or a pair of scissors.
2. the manufacturing method according to claim 1, it is characterised in that:
The carcass metal powder include: by mass percentage Cr:10% to 18%, Ni:5% to 15%, Mo:2% extremely 10%, Mn:0.1% are to 1.0%, Cu:1.0% to 5.0%, Nb:0.5% to 1.5%, surplus Fe.
3. manufacturing method according to claim 1 or 2, it is characterised in that:
It being pre-sintered in hot press, wherein the pressure of hot press is 42Mpa, and pre-sintering temperature is 600 DEG C to 1300 DEG C, The pre-sintering time is 8h to 20h.
4. manufacturing method according to claim 3, it is characterised in that:
Double sintering is carried out in a vacuum furnace, wherein the temperature of double sintering is 1300 DEG C to 1600 DEG C, and the double sintering time is 18h to 30h.
5. manufacturing method according to claim 4, it is characterised in that:
The sintered body is fixed on the two-sided blade of the cutter hub by the method for laser welding.
6. a kind of kitchen knife with diamond, it is characterised in that: including cutter hub and sintered body, the sintered body passes through above-mentioned Manufacturing method described in any one of claim 1 to 5 is fixed on the cutter hub.
CN201910675422.1A 2019-07-25 2019-07-25 A kind of kitchen knife and its manufacturing method with diamond Pending CN110253023A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910675422.1A CN110253023A (en) 2019-07-25 2019-07-25 A kind of kitchen knife and its manufacturing method with diamond

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910675422.1A CN110253023A (en) 2019-07-25 2019-07-25 A kind of kitchen knife and its manufacturing method with diamond

Publications (1)

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CN110253023A true CN110253023A (en) 2019-09-20

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113182523A (en) * 2021-04-15 2021-07-30 博深股份有限公司 Method for preparing diamond cutter teeth through high-temperature press sintering
CN114101657A (en) * 2021-11-12 2022-03-01 阳江市天骄家庭用品制造有限公司 Sterilized stainless steel feeding and cutting tool and preparation method thereof
CN115519121A (en) * 2022-11-02 2022-12-27 阳江市天骄家庭用品制造有限公司 Manufacturing method of high-hardness corrosion-resistant stainless steel cutting tool

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
李湘祁，林辉: "《饰面石材加工基础》", 31 December 2016, 中国建材工业出版社 *
王振廷，付长璟: "《石墨深加工技术》", 30 June 2017, 哈尔滨工业出版社 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113182523A (en) * 2021-04-15 2021-07-30 博深股份有限公司 Method for preparing diamond cutter teeth through high-temperature press sintering
CN113182523B (en) * 2021-04-15 2022-12-30 博深股份有限公司 Method for preparing diamond cutter teeth through high-temperature press sintering
CN114101657A (en) * 2021-11-12 2022-03-01 阳江市天骄家庭用品制造有限公司 Sterilized stainless steel feeding and cutting tool and preparation method thereof
CN115519121A (en) * 2022-11-02 2022-12-27 阳江市天骄家庭用品制造有限公司 Manufacturing method of high-hardness corrosion-resistant stainless steel cutting tool

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Application publication date: 20190920