CN109338282A - Heat expansion knife handle with composite coating and preparation method thereof - Google Patents
Heat expansion knife handle with composite coating and preparation method thereof Download PDFInfo
- Publication number
- CN109338282A CN109338282A CN201811380448.5A CN201811380448A CN109338282A CN 109338282 A CN109338282 A CN 109338282A CN 201811380448 A CN201811380448 A CN 201811380448A CN 109338282 A CN109338282 A CN 109338282A
- Authority
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- China
- Prior art keywords
- knife handle
- composite coating
- heat expansion
- ontology
- furnace
- 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.)
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- 239000011248 coating agent Substances 0.000 title claims abstract description 22
- 238000000576 coating method Methods 0.000 title claims abstract description 22
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 23
- 229910052751 metal Inorganic materials 0.000 claims abstract description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 13
- 150000001875 compounds Chemical class 0.000 claims abstract description 13
- 238000005121 nitriding Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- 230000003647 oxidation Effects 0.000 claims description 12
- 238000007254 oxidation reaction Methods 0.000 claims description 12
- 150000003839 salts Chemical class 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 6
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 230000007613 environmental effect Effects 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical class [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 2
- 150000004767 nitrides Chemical class 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 12
- 238000009826 distribution Methods 0.000 abstract description 12
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 208000025599 Heat Stress disease Diseases 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- 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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/40—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions
- C23C8/42—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions only one element being applied
- C23C8/48—Nitriding
- C23C8/50—Nitriding of ferrous surfaces
-
- 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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/10—Oxidising
Abstract
The invention discloses the heat expansion knife handles and preparation method thereof for having composite coating, it include knife handle ontology, knife handle ontology has inner hole, the knife handle bulk metal surfaces and inner hole metal surface are covered with a composite coating, the composite coating is that knife handle ontology is formed one layer of fine and close compound layer best in quality in metal surface by nitriding process, which is made of ε nitrided iron completely.The compound layer can improve the hardness of metal surface, compactness, efficiently to make metal surface possess good corrosion resistance, inoxidizability, wear-resisting property.It enables to heat expansion knife handle not occur carbon distribution or small carbon distribution using inner hole after heating, not will cause knife handle and excessively heat, heat expansion knife handle is made to reach longer service life.
Description
Technical field
The present invention relates to a kind of heat expansion knife handles, and specially knife handle surface and inner hole nitrogenize, oxidation forms the heat of composite coating
Swollen knife handle and preparation method thereof.
Background technique
The effect of heat expansion knife handle is to heat knife handle temperature rapidly by electromagnetic induction heater to keep material hot to 300-400 DEG C
Tolerance value between the heat distortion amount of expansion and the tungsten steel alloy bar of clamping, high-speed steel tool and alloy cutter heat distortion amount comes
Clamping cutter.External and domestic heat expansion knife handle material be mostly the U.S. the alloy material H13 trade mark, the SKD61 Japan trade mark,
The 4Cr5MoSi V1 China trade mark, metal surface are unable to antirust in knife handle use, are unable to anti-carbon.It is main the reason is that often
Heating causes knife handle appearance and inner hole a large amount of carbon distributions occur, and inner hole carbon distribution diameter of bore occurs and becomes smaller, and a small amount of carbon distribution occurs in inner hole
Knife handle material can also be made to reach maximum heat distortion amount by raising heating temperature and take cutter to fill.When a large amount of carbon distributions occurs in inner hole
Then it is difficult the heat distortion amount coefficient again by thermally expanding and takes cutter successfully to fill, even if it is also invalid for improving heating temperature.Moreover
It is heated to the safety line of heat expansion knife handle material heat fatigue degree or more, the failure of heat expansion knife handle material heat fatigue degree makes heat expansion knife handle material
The thermal crack(ing of material expands rapidly, and deforms knife handle, cannot shrink knife handle and directly scrap.
Summary of the invention
For above-mentioned defect existing in the prior art, the purpose of the present invention is to provide a kind of heat with composite coating
Swollen knife handle and preparation method thereof, knife handle in use can antirust, anti-carbon, and then improve service life.
Above-mentioned purpose is achieved through the following technical solutions:
Heat expansion knife handle with composite coating, includes knife handle ontology, and knife handle ontology has inner hole, it is characterised in that: described
Knife handle bulk metal surfaces and inner hole metal surface are covered with a composite coating, and the composite coating is to lead to knife handle ontology
It crosses nitriding process and forms one layer of fine and close compound layer best in quality in metal surface, the compound is completely by ε nitrided iron group
At.
A method of preparing the above-mentioned heat expansion knife handle with composite coating, it is characterised in that: be achieved by the steps of
Preparation:
Cleaning: knife handle body surface and inner hole are first cleaned up；
Preheating: clean knife handle ontology is put into preheating furnace, 350-400 DEG C is warmed in preheating furnace, dries knife handle ontology
Preheated knife handle ontology is obtained after surface moisture；
Nitridation: preheated knife handle ontology is put into nitriding furnace, will nitrogenize furnace temperature after preheating nitriding furnace increases to 500-
600 DEG C of operating temperatures, knife handle ontology react in nitrogenization raw material salt bath liquid, and it is excellent to form one layer of quality in metal surface
Good fine and close compound layer, the compound are made of ε nitrided iron completely；
Oxidation: the knife handle ontology after nitridation is put into oxidation furnace, oxidation furnace is heated to 350-400 DEG C, can thoroughly decompose
Product nitrogenizes the cyanogen root of furnace zone out with meet the requirement of environmental protection, while forming black oxide film in product surface；
Second of cleaning: the finished product that via nitride, oxidation are completed is put into rinse bath, cleans up finished product, fine purifiation finished product
Surface makes surface smooth and beautiful appearance；
Dry, arrangement: the dry final finishing packaging of finished product obtains qualified products.
Above-mentioned nitrogenization raw material is the salt bath liquid that the basis NaOH salt is formed.
For the present invention by testing the nitriding process for doing above-mentioned steps to heat expansion knife handle many times, last conclusion is to improve
Several times of heat expansion knife handle or more of service life, particular for path inner hole, heat expansion knife handle using inner hole after heating do not occur carbon distribution or
Small carbon distribution not will cause knife handle and excessively heat, heat expansion knife handle is made to reach longer service life.
Compared to the prior art heat expansion knife handle metal surface with after composite coating the utility model has the advantages that
1. corrosion resistance (antirust), product, which gets rusty, will affect Product Precision, the product after non-nitridation product and nitridation does salt fog examination
It tests, non-nitridation product salt spray test rusty stain occurs in or so 4 hours, and the product salt bath test after nitridation can reach 100 small
When more than, rustless property reaches 25 times or more；2. anti-oxidant mainly protection knife handle high temperature prevents product appearance after heating back and forth
There is carbon distribution with inner hole, be not in the knife handle service life it is short, and prevent later period inner hole occur carbon distribution internal diameter become smaller needs improve plus
Hot temperature carrys out clamping milling cutter and causes heat expansion knife handle over-heating, makes heat expansion knife handle material heat fatigue excessively knife handle be caused to deform, shadow
Product Precision is rung, or generates bigger thermal crack(ing, prevents knife handle from shrinking, directly scraps heat expansion knife handle；3. good resistance to
Fatigability；4. minimum deformation is even indeformable.
Detailed description of the invention
Fig. 1 is first embodiment of the present invention schematic diagram；
Fig. 2 is the A meaning partial schematic diagram after the completion of first embodiment of the invention preparation；
Fig. 3 is second embodiment of the present invention schematic diagram；
Fig. 4 is third embodiment of the present invention schematic diagram.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
As shown in Fig. 1 ~ 4, the heat expansion knife handle with composite coating includes knife handle ontology 1, and knife handle ontology 1 has inner hole
2, above-mentioned knife handle ontology 1 is metal material, usually alloy material.In 1 metal surface of knife handle ontology and inner hole 2
Metal surface is covered with a composite coating 11, and the composite coating 11 is by nitriding process by knife handle ontology 1 in its metal
Surface forms one layer of fine and close compound layer best in quality, which is made of ε nitrided iron completely.The compound layer can
Improve the hardness of metal surface, compactness, efficiently to make metal surface possess good corrosion resistance, inoxidizability, resistance to
Grind performance.Therefore 1 metal surface of knife handle ontology and 2 metal surface of inner hole enable to heat expansion with after above-mentioned composite coating
Knife handle does not occur carbon distribution or small carbon distribution using inner hole after heating, not will cause knife handle and excessively heats, reaches heat expansion knife handle
Longer service life.
The preparation method of composite coating is achieved by the steps of:Cleaning: knife handle body surface is first cleaned up
And inner hole；
Preheating: clean knife handle ontology is put into preheating furnace, 350-400 DEG C is warmed in preheating furnace, dries knife handle ontology
Preheated knife handle ontology is obtained after surface moisture；Nitridation: preheated knife handle ontology is put into nitriding furnace, pre- tropical resources
Nitridation furnace temperature is increased into 500-600 DEG C of operating temperature after furnace, knife handle ontology occurs instead in nitrogenization raw material salt bath liquid
It answers, forms one layer of fine and close compound layer best in quality in metal surface, which is made of ε nitrided iron completely；Oxygen
Change: the knife handle ontology after nitridation is put into oxidation furnace, oxidation furnace is heated to 350-400 DEG C, can thorough analytical product nitriding furnace
The cyanogen root brought out forms black oxide film in product surface with meet the requirement of environmental protection；Second of cleaning:
The finished product that nitridation, oxidation are completed is put into rinse bath, cleans up finished product, fine purifiation finished surface makes surface smooth and beautiful appearance；It is dry
Dry, arrangement: the dry final finishing packaging of finished product obtains qualified products.Preparation method of the present invention be suitable for heat expansion knife handle, heat-shrinkable knife handle,
It is sintered the same or similar field such as knife handle or numerical control knife handle,
The above is only better embodiment of the invention, is not intended to limit the present invention in any form, all foundations
Technical principle of the invention any simple modification, equivalent variations or modification made to the above embodiment, still fall within skill of the present invention
In the range of art scheme.
Claims (3)
- It include knife handle ontology 1. having the heat expansion knife handle of composite coating, knife handle ontology has inner hole, it is characterised in that: described Knife handle bulk metal surfaces and inner hole metal surface be covered with a composite coating, the composite coating is by knife handle ontology One layer of fine and close compound layer best in quality is formed in metal surface by nitriding process, the compound is completely by ε nitrided iron Composition.
- 2. a kind of method for preparing the above-mentioned heat expansion knife handle with composite coating, it is characterised in that: be achieved by the steps of system It is standby:Cleaning: knife handle body surface and inner hole are first cleaned up；Preheating: clean knife handle ontology is put into preheating furnace, 350-400 DEG C is warmed in preheating furnace, dries this body surface of knife handle Preheated knife handle ontology is obtained after the moisture of face；Nitridation: preheated knife handle ontology is put into nitriding furnace, will nitrogenize furnace temperature after preheating nitriding furnace increases to 500-600 DEG C operating temperature, knife handle ontology react in nitrogenization raw material salt bath liquid, metal surface formed one layer it is best in quality Fine and close compound layer, the compound are made of ε nitrided iron completely；Oxidation: the knife handle ontology after nitridation is put into oxidation furnace, oxidation furnace is heated to 350-400 DEG C, can thoroughly decompose production The cyanogen root that product nitriding furnace is brought out forms black oxide film in product surface with meet the requirement of environmental protection；Second of cleaning: the finished product that via nitride, oxidation are completed is put into rinse bath, cleans up finished product, fine purifiation assembled watch Face makes surface smooth and beautiful appearance；Dry, arrangement: the dry final finishing packaging of finished product obtains qualified products.
- 3. a kind of method for preparing the above-mentioned heat expansion knife handle with composite coating as claimed in claim 2, it is characterised in that: on The nitrogenization raw material stated is the salt bath liquid that the basis NaOH salt is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811380448.5A CN109338282A (en) | 2018-11-20 | 2018-11-20 | Heat expansion knife handle with composite coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811380448.5A CN109338282A (en) | 2018-11-20 | 2018-11-20 | Heat expansion knife handle with composite coating and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109338282A true CN109338282A (en) | 2019-02-15 |
Family
ID=65316263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811380448.5A Pending CN109338282A (en) | 2018-11-20 | 2018-11-20 | Heat expansion knife handle with composite coating and preparation method thereof |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112404607A (en) * | 2019-08-20 | 2021-02-26 | 哈尔滨东安利峰刀具有限公司 | Thermal shrinkage type taper shank alloy gear shaper cutter |
| CN112676630A (en) * | 2020-11-17 | 2021-04-20 | 刘旭 | Carbon deposition-resistant and cracking-resistant thermal expansion knife handle and manufacturing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107164719A (en) * | 2017-04-28 | 2017-09-15 | 叶小平 | The method of metal surface salt-bath nitriding Combined Processing |
| CN107972185A (en) * | 2017-12-25 | 2018-05-01 | 沈阳建筑大学 | A kind of knife handle with vibration-damping function |
| CN209292461U (en) * | 2018-11-20 | 2019-08-23 | 刘旭 | Heat expansion knife handle with composite coating |
-
2018
- 2018-11-20 CN CN201811380448.5A patent/CN109338282A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107164719A (en) * | 2017-04-28 | 2017-09-15 | 叶小平 | The method of metal surface salt-bath nitriding Combined Processing |
| CN107972185A (en) * | 2017-12-25 | 2018-05-01 | 沈阳建筑大学 | A kind of knife handle with vibration-damping function |
| CN209292461U (en) * | 2018-11-20 | 2019-08-23 | 刘旭 | Heat expansion knife handle with composite coating |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112404607A (en) * | 2019-08-20 | 2021-02-26 | 哈尔滨东安利峰刀具有限公司 | Thermal shrinkage type taper shank alloy gear shaper cutter |
| CN112676630A (en) * | 2020-11-17 | 2021-04-20 | 刘旭 | Carbon deposition-resistant and cracking-resistant thermal expansion knife handle and manufacturing method thereof |
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