CN106435581A - Steel part surface ultra-hardening treatment process - Google Patents
Steel part surface ultra-hardening treatment process Download PDFInfo
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- CN106435581A CN106435581A CN201611064320.9A CN201611064320A CN106435581A CN 106435581 A CN106435581 A CN 106435581A CN 201611064320 A CN201611064320 A CN 201611064320A CN 106435581 A CN106435581 A CN 106435581A
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 35
- 239000010959 steel Substances 0.000 title claims abstract description 35
- 239000000843 powder Substances 0.000 claims abstract description 77
- 239000011248 coating agent Substances 0.000 claims abstract description 46
- 238000000576 coating method Methods 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 34
- 239000002131 composite material Substances 0.000 claims abstract description 24
- 238000005253 cladding Methods 0.000 claims abstract description 21
- 238000004381 surface treatment Methods 0.000 claims abstract description 11
- 239000000956 alloy Substances 0.000 claims abstract description 9
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 9
- 238000000498 ball milling Methods 0.000 claims description 21
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 16
- 239000011812 mixed powder Substances 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical group CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 11
- 229960000935 dehydrated alcohol Drugs 0.000 claims description 9
- 230000006698 induction Effects 0.000 claims description 9
- 238000001291 vacuum drying Methods 0.000 claims description 9
- 229910052786 argon Inorganic materials 0.000 claims description 8
- 239000012159 carrier gas Substances 0.000 claims description 8
- 238000010410 dusting Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 8
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 7
- 239000008187 granular material Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 4
- 239000007769 metal material Substances 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000005245 sintering Methods 0.000 description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229960004756 ethanol Drugs 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000010998 test method Methods 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
- C23C24/00—Coating starting from inorganic powder
- C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
- C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer
- C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
-
- B22F1/0003—
-
- 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/067—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
Abstract
The invention relates to a steel part surface ultra-hardening treatment process and belongs to the field of metal material surface treatment. A vacuum cladding method is adopted for cladding an iron-base alloy with a WC composite coating. The steel part surface ultra-hardening treatment process comprises the steps that firstly, coating of the composite coating is prepared, and powder materials which are good in dispersity, uniform in particle diameter and high in strength and abrasion resistance are formed in advance; and then the surface of the steel part is cladded with the obtained spherical materials through the vacuum cladding method, and the steel part with the high surface hardness is obtained.
Description
Technical field
The present invention relates to a kind of superhard surface treatment technology of steel part, belong to field of metal material surface treatment.
Background technology
Surface hardening refer to make the case-hardening of part by suitable method and the center portion of part still have tough
The process of property.Conventional surface-hardening treatment method mainly has carburizing, nitridation, hard anodizing, coating, surface hardening, oozes
Metal etc..
By plating one layer of metal with higher hardness or inorganic matters in piece surface, can reach and improve case hardness
Method, such as chromium plating.Chromium coating has very high hardness, different with process conditions according to solution composition, and its hardness can be in very big model
Enclose change in 400~1200HV.Chromium coating has preferable thermostability and good wearability.With the development of materialogy, applying
Increase hard ceramic in layer increasingly to receive publicity with the hardness improving alloy part surface further, wherein, most commonly seen
Coating material be WC.
The WC powder body property of itself, such as granularity, dispersibility etc. all determines the performance of coating.And domestic at present WC powder used
Depending on import body more, relatively costly.
Content of the invention
For solving above-mentioned technical problem, it is an object of the invention to provide a kind of superhard surface treatment technology of steel part, specifically
For a kind of technique of utilization vacuum cladding method cladding WC composite coating on steel part.
The superhard surface treatment technology of steel part, described technique is that on ferrous alloy, cladding WC is combined using vacuum cladding method
The technique of coating, methods described processing step is as follows:
(1) coating material preparation:WC powder body, TiC powder, ZrC powder body, Co powder body are in mass ratio 1:0.2~0.4:
0.1~0.3:0.08~0.2 ratio mixing, mixed powder is placed in ball mill, in the speed of 300~360r/min
Ball milling at least 2h, ball-milling medium is dehydrated alcohol;Powder after ball milling is placed in induction plasma powder unit and carries out ball
Change is processed, and actual conditions is:Power 40~60kW, speed of dusting is 75~150g/min, the flow velocity of carrier gas argon is 25~
60L/min, obtains spherical composite coating material;
(2) spray treatment:After spherical for step (1) gained composite coating material is dried with nanometer Fe powder body it is in mass ratio
1:0.5~1.2 is mixed, and mixed powder body is coated on steel piece surface, and steel part is placed in vacuum drying oven is sintered,
Sintering condition is:1200~1350 DEG C of temperature, vacuum is less than 1 × 10-3Pa, time 5~30min.
Induction plasma powder unit of the present invention and vacuum drying oven are all commercially available.
Further, the spherical composite coating material of described step (1) gained is spheroidal particle, and mean diameter is 25~60 micro-
Rice.
Further, WC powder body described in described step (1), TiC powder, ZrC powder body, the gross weight of Co powder body with anhydrous
The ratio of ethanol is 1g:0.2~5mL.
The preferred technical scheme of the present invention one is:
The superhard surface treatment technology of steel part, described technique is that on ferrous alloy, cladding WC is combined using vacuum cladding method
The technique of coating, methods described processing step is as follows:
(1) coating material preparation:WC powder body, TiC powder, ZrC powder body, Co powder body are in mass ratio 1:0.2:0.25:
0.08 ratio mixing, mixed powder is placed in ball mill, the speed in 300~360r/min is milled to few 2h, ball
Grinding media is dehydrated alcohol;Powder after ball milling is placed in induction plasma powder unit and carries out spheroidising, concrete bar
Part is:Power 60kW, speed of dusting is 100g/min, and the flow velocity of carrier gas argon is 35L/min, obtains spherical composite coating material
Material;
(2) spray treatment:After spherical for step (1) gained composite coating material is dried with nanometer Fe powder body it is in mass ratio
1:0.5 is mixed, and mixed powder body is coated on steel piece surface, and steel part is placed in vacuum drying oven is sintered, sintering
Condition is:120 DEG C of temperature, vacuum is less than 1 × 10-3Pa, time 10min.
Presently preferred technical scheme is:
The superhard surface treatment technology of steel part, described technique is that on ferrous alloy, cladding WC is combined using vacuum cladding method
The technique of coating, methods described processing step is as follows:
(1) coating material preparation:WC powder body, TiC powder, ZrC powder body, Co powder body are in mass ratio 1:0.2~0.4:
0.1~0.3:0.08~0.2 ratio mixing, mixed powder is placed in ball mill, in the speed of 300~360r/min
Ball milling at least 2h, ball-milling medium is dehydrated alcohol;Powder after ball milling is placed in induction plasma powder unit and carries out ball
Change is processed, and actual conditions is:Power 55kW, speed of dusting is 120g/min, and the flow velocity of carrier gas argon is 40L/min, obtains ball
Shape composite coating material;
(2) spray treatment:After spherical for step (1) gained composite coating material is dried with nanometer Fe powder body it is in mass ratio
1:1.2 are mixed, and mixed powder body is coated on steel piece surface, and steel part is placed in vacuum drying oven is sintered, sintering
Condition is:1250 DEG C of temperature, vacuum is less than 1 × 10-3Pa, time 5min.
Beneficial effects of the present invention are:The invention provides a kind of utilize vacuum cladding method cladding WC on ferrous alloy multiple
The technique closing coating, the method for the invention prepares composite coating coating first so as to be pre-formed good dispersion degree, grain diameter
Powder material uniform and that intensity is high, wearability is strong;Then utilize vacuum cladding method by obtained spherical raw material cladding in steel part
Surface, obtains and has the high steel part of case hardness.
Specific embodiment
Following non-limiting examples can make those of ordinary skill in the art that the present invention is more fully understood, but not with
Any mode limits the present invention.
Test method described in following embodiments, if no special instructions, is conventional method;Described reagent and material, such as
No specified otherwise, all commercially obtains.
Embodiment 1
The superhard surface treatment technology of steel part, described technique is that on ferrous alloy, cladding WC is combined using vacuum cladding method
The technique of coating, methods described processing step is as follows:
(1) coating material preparation:WC powder body, TiC powder, ZrC powder body, Co powder body are in mass ratio 1:0.2:0.25:
0.08 ratio mixing, mixed powder is placed in ball mill, and in the speed ball milling 2h of 300r/min, ball-milling medium is no
Water-ethanol;Powder after ball milling is placed in induction plasma powder unit and carries out spheroidising, actual conditions is:Power
60kW, speed of dusting is 100g/min, and the flow velocity of carrier gas argon is 35L/min, obtains spherical composite coating material;Gained is spherical
Composite coating material is spheroidal particle, and mean diameter is 25~60 microns;Described WC powder body, TiC powder, ZrC powder body, Co powder body
Gross weight and dehydrated alcohol ratio be 1g:0.5mL.
(2) spray treatment:After spherical for step (1) gained composite coating material is dried with nanometer Fe powder body it is in mass ratio
1:0.5 is mixed, and mixed powder body is coated on steel piece surface, and steel part is placed in vacuum drying oven is sintered, sintering
Condition is:120 DEG C of temperature, vacuum is less than 1 × 10-3Pa, time 10min.
The hardness of gained steel piece surface improves 89%.
Embodiment 2
The superhard surface treatment technology of steel part, described technique is that on ferrous alloy, cladding WC is combined using vacuum cladding method
The technique of coating, methods described processing step is as follows:
(1) coating material preparation:WC powder body, TiC powder, ZrC powder body, Co powder body are in mass ratio 1:0.4:0.1:
0.08 ratio mixing, mixed powder is placed in ball mill, and in the speed ball milling 2h of 360r/min, ball-milling medium is no
Water-ethanol;Powder after ball milling is placed in induction plasma powder unit and carries out spheroidising, actual conditions is:Power
55kW, speed of dusting is 120g/min, and the flow velocity of carrier gas argon is 40L/min, obtains spherical composite coating material;Gained is spherical
Composite coating material is spheroidal particle, and mean diameter is 25~60 microns;Described WC powder body, TiC powder, ZrC powder body, Co powder body
Gross weight and dehydrated alcohol ratio be 1g:0.75mL.
(2) spray treatment:After spherical for step (1) gained composite coating material is dried with nanometer Fe powder body it is in mass ratio
1:1.2 are mixed, and mixed powder body is coated on steel piece surface, and steel part is placed in vacuum drying oven is sintered, sintering
Condition is:1250 DEG C of temperature, vacuum is less than 1 × 10-3Pa, time 5min.
The hardness of gained steel piece surface improves 63%.
Claims (5)
1. the superhard surface treatment technology of steel part it is characterised in that:Described technique be using vacuum cladding method on ferrous alloy
The technique of cladding WC composite coating, methods described processing step is as follows:
(1) coating material preparation:WC powder body, TiC powder, ZrC powder body, Co powder body are in mass ratio 1:0.2~0.4:0.1~
0.3:0.08~0.2 ratio mixing, mixed powder is placed in ball mill, in the speed ball milling of 300~360r/min
At least 2h, ball-milling medium is dehydrated alcohol;Powder after ball milling is placed in induction plasma powder unit and carries out at nodularization
Manage, actual conditions is:Power 40~60kW, speed of dusting is 75~150g/min, and the flow velocity of carrier gas argon is 25~60L/
Min, obtains spherical composite coating material;
(2) spray treatment:With nanometer Fe powder body in mass ratio for 1 after spherical for step (1) gained composite coating material is dried:
0.5~1.2 is mixed, and mixed powder body is coated on steel piece surface, and steel part is placed in vacuum drying oven is sintered, and burns
Knot condition is:1200~1350 DEG C of temperature, vacuum is less than 1 × 10-3Pa, time 5~30min.
2. technique according to claim 1 it is characterised in that:The spherical composite coating material of described step (1) gained is ball
Shape granule, mean diameter is 25~60 microns.
3. technique according to claim 1 it is characterised in that:WC powder body, TiC powder, ZrC described in described step (1)
The ratio of powder body, the gross weight of Co powder body and dehydrated alcohol is 1g:0.2~5mL.
4. technique according to claim 3 it is characterised in that:Methods described processing step is as follows:
(1) coating material preparation:WC powder body, TiC powder, ZrC powder body, Co powder body are in mass ratio 1:0.2:0.25:0.08
Ratio mixing, mixed powder is placed in ball mill, the speed in 300~360r/min is milled to few 2h, ball milling is situated between
Matter is dehydrated alcohol;Powder after ball milling is placed in induction plasma powder unit and carries out spheroidising, actual conditions is:
Power 60kW, speed of dusting is 100g/min, and the flow velocity of carrier gas argon is 35L/min, obtains spherical composite coating material;
(2) spray treatment:With nanometer Fe powder body in mass ratio for 1 after spherical for step (1) gained composite coating material is dried:
0.5 is mixed, and mixed powder body is coated on steel piece surface, and steel part is placed in vacuum drying oven is sintered, sintered bar
Part is:120 DEG C of temperature, vacuum is less than 1 × 10-3Pa, time 10min.
5. technique according to claim 3 it is characterised in that:Methods described processing step is as follows:
(1) coating material preparation:WC powder body, TiC powder, ZrC powder body, Co powder body are in mass ratio 1:0.2~0.4:0.1~
0.3:0.08~0.2 ratio mixing, mixed powder is placed in ball mill, in the speed ball milling of 300~360r/min
At least 2h, ball-milling medium is dehydrated alcohol;Powder after ball milling is placed in induction plasma powder unit and carries out at nodularization
Manage, actual conditions is:Power 55kW, speed of dusting is 120g/min, and the flow velocity of carrier gas argon is 40L/min, obtains spherical multiple
Close coating material;
(2) spray treatment:With nanometer Fe powder body in mass ratio for 1 after spherical for step (1) gained composite coating material is dried:
1.2 are mixed, and mixed powder body is coated on steel piece surface, and steel part is placed in vacuum drying oven is sintered, sintered bar
Part is:1250 DEG C of temperature, vacuum is less than 1 × 10-3Pa, time 5min.
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CN201611064320.9A CN106435581A (en) | 2016-11-28 | 2016-11-28 | Steel part surface ultra-hardening treatment process |
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Cited By (5)
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---|---|---|---|---|
CN107904545A (en) * | 2017-11-18 | 2018-04-13 | 张晓娟 | A kind of metal die surface duplex hardening treatment process |
CN109321801A (en) * | 2018-11-07 | 2019-02-12 | 许振华 | A kind of nickel based metal ceramic composite coating and its preparation process |
CN109702189A (en) * | 2019-03-14 | 2019-05-03 | 上海海事大学 | A kind of production method of cochrome base spherical carbide niobium powder body |
CN111482611A (en) * | 2019-03-07 | 2020-08-04 | 安徽中体新材料科技有限公司 | Preparation method of spherical tungsten carbide-cobalt powder for 3D printing |
CN112080677A (en) * | 2019-06-12 | 2020-12-15 | C4有限公司 | Carbide material for cutting device and related manufacturing method |
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CN103158292A (en) * | 2011-12-15 | 2013-06-19 | 陕西天元材料保护科技有限公司 | Wear resistant blade and processing method thereof |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN107904545A (en) * | 2017-11-18 | 2018-04-13 | 张晓娟 | A kind of metal die surface duplex hardening treatment process |
CN109321801A (en) * | 2018-11-07 | 2019-02-12 | 许振华 | A kind of nickel based metal ceramic composite coating and its preparation process |
CN111482611A (en) * | 2019-03-07 | 2020-08-04 | 安徽中体新材料科技有限公司 | Preparation method of spherical tungsten carbide-cobalt powder for 3D printing |
CN109702189A (en) * | 2019-03-14 | 2019-05-03 | 上海海事大学 | A kind of production method of cochrome base spherical carbide niobium powder body |
CN112080677A (en) * | 2019-06-12 | 2020-12-15 | C4有限公司 | Carbide material for cutting device and related manufacturing method |
EP3751019A1 (en) * | 2019-06-12 | 2020-12-16 | C4 Carbides Limited | Carbide material for cutting devices and associated method of manufacture |
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