CN106702304B - A kind of wearing layer preparation method of greenfeed dedicated tool - Google Patents
A kind of wearing layer preparation method of greenfeed dedicated tool Download PDFInfo
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- CN106702304B CN106702304B CN201710045546.2A CN201710045546A CN106702304B CN 106702304 B CN106702304 B CN 106702304B CN 201710045546 A CN201710045546 A CN 201710045546A CN 106702304 B CN106702304 B CN 106702304B
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- cutter
- wearing layer
- greenfeed
- blade
- resistant alloy
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- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/18—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for knives, scythes, scissors, or like hand cutting tools
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/22—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for drills; for milling cutters; for machine cutting tools
-
- 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
- C22C29/065—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 SiC
-
- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/18—After-treatment
Abstract
The present invention relates to a kind of wearing layer preparation methods of greenfeed dedicated tool, belong to cutter wearing layer technical field, the raw materials used wearing layer is wear resistant alloy powders, blasting treatment first is carried out to the blade both sides of the face of cutter, the roughness for handling surface is not less than 16, wear resistant alloy powders include nickel powder, tungsten-carbide powder and diamond dust, three is uniformly mixed, wear resistant alloy powders are sprayed on blade both sides of the face using flame sprayer, then cutter is heated using vacuum furnace, the wearing layer of melting is formed on the blade both sides of the face of cutter, the heat treatment for then being quenched and being tempered, cooled to room temperature after heat treatment, the wearing layer preparation process of tool surface terminates, it is significantly improved using the greenfeed dedicated tool wear-resisting property that this method prepares wearing layer, carrying out greenfeed cutting, it smashes When work, the wearability of cutter is preferable, and wearing layer is not easy to be stripped and wear, and the working life of cutter is longer.
Description
Technical field
The invention belongs to cutter wearing layer technical fields, and in particular to a kind of wearing layer preparation side of greenfeed dedicated tool
Method.
Background technique
In the dedicated tool for cutting or crushing, wearability is to evaluate an important indicator of cutter quality, crops
Cutting and grinding be a key areas using wear resistant cutters, greenfeed is the fresh cauline leaf of crop, conduct after cutting and grinding
Feed applications, itself contains large quantity of moisture and plant cell liquor, so that greenfeed has certain toughness, and cutting and grinding
Moisture afterwards can impact cutter itself, and when being cut, crushed using existing dedicated tool, cutter itself is existing
Disadvantage causes cutting-tool's used life shorter, and working effect is undesirable, and cutter exists more existing with the damages such as more blunt, tipping
As therefore, it is necessary to improve to greenfeed dedicated tool.
Summary of the invention
The present invention compensates for the deficiency of existing cutter, provides a kind of wearing layer preparation method of greenfeed dedicated tool,
Wearing layer can be combined closely with tool matrix and be melted and is structure as a whole by this method, and the hardness of wearing layer significantly improves, and be made
Used time wear-resisting property is preferable, and service life increases significantly.
The specific technical solution of the present invention is:
A kind of wearing layer preparation method of greenfeed dedicated tool, this method use wear resistant alloy powders in the blade of cutter
Both sides of the face prepare wearing layer, and key point is, the wearing layer preparation method the following steps are included:
A, sandblasting
Blasting treatment is carried out in blade both sides of the face, processing rear surface roughness is not more than 16, by surface after sandblasting
It cleans out；
B, it sprays
Wear resistant alloy powders are heated to 1000-1100 DEG C with flame sprayer and are sprayed on blade both sides of the face, are sprayed
Applying gases used is acetylene, and spraying air pressure is 8-12MPa；
C, cladding
Cutter is put into vacuum furnace after spraying and is heated to 1100-1200 DEG C, retention time 10min/
200kg；
D, it is heat-treated
After heating take out cutter be cooled to 260 DEG C, then to cutter carry out nitrate quenching, Quenching Soaking Time according to
The thickness of cutter is set as 5-10min/mm, and cutter is taken out after quenching and is cooled to room temperature, and blade both sides of the face are clean,
It being tempered with fed to boiler, tempering temperature is 260-320 DEG C, and the retention time is set as 5-10min/mm according to the thickness of cutter,
It takes out cutter after tempering to be cooled to room temperature, the wearing layer preparation process of cutter terminates.
The wear resistant alloy powders include the carbonization according to 40% nickel powder, 10%-35% of mass percent mixing
The diamond dust of tungsten powder and 25%-50%.
The nickel powder granularity is 35-45 mesh, and tungsten carbide size is 50-70 mesh.
In the step B, wear resistant alloy powders heating temperature is 1050 DEG C, and spraying air pressure is 10MPa.
In the step C, cutter heating temperature is 1120 DEG C.
The beneficial effects of the present invention are: wear resistant alloy powders are adhered to by way of spraying after flame heats in the present invention
On tool matrix surface, spraying is using acetylene as spray gas so that powder after being detached from flame sprayer still by
Flame surrounds, and the powder particle of spraying can deeper impinge onto tool matrix surface, the knot of powder particle and tool matrix
It is right, integraty is more preferable, heating process of the cutter in vacuum furnace is the metallurgy of wear resistant alloy powders and tool matrix
Cohesive process forms one layer and the preferable melting layer of integrally combining property of tool matrix on tool matrix surface.
Detailed description of the invention
Fig. 1 is that status diagram is sprayed in the present invention.
Specific embodiment
The present invention relates to a kind of wearing layer preparation method of greenfeed dedicated tool, this method is existed using wear resistant alloy powders
The blade both sides of the face of cutter prepare wearing layer, include nickel powder, tungsten-carbide powder and diamond dust in wear resistant alloy powders, by this
Wear resistant alloy powders act on blade both sides of the face, successively by sandblasting, spraying, cladding and heat treatment and etc., finally exist
The surface of cutter prepares wearing layer, and using method process tool of the invention, cutter material is 50CrV4, the detailed process of preparation
It is shown by specific embodiment.
Embodiment 1, the wear resistant alloy powders of wearing layer include according to mass percent mixing 40% nickel powder,
10% tungsten-carbide powder and 50% diamond dust, nickel powder granularity is 40 mesh, and tungsten carbide size is 60 mesh, this kind of ratio it is mixed
Close obtained wearing layer, wear-resisting property when use is best, but under the ratio diamond dust ratio it is higher, lead to the system of wearing layer
Standby cost is also higher, and three kinds of powder are sent into blender to be stirred jointly and be mixed to uniform, chooses 50CrV4 as cutter
Cutter blank raw material carries out high temperature and forges, obtains the cutter blank of cutter, be then machined out to cutter blank, being formed has blade after blanking
Cutter, using wear resistant alloy powders blade both sides of the face carry out wearing layer preparation, the wearing layer preparation method
The following steps are included:
A, sandblasting
Blasting treatment is carried out in blade both sides of the face, processing rear surface roughness is not more than 16, by surface after sandblasting
It cleans out, the surface roughness after sandblasting is conducive to the fixation and deep combination of sprayed particle, is the spraying of wear resistant alloy powders
Fixation provides good condition；
B, it sprays
Wear resistant alloy powders are heated to 1050 DEG C with flame sprayer and are sprayed on blade both sides of the face, court when spraying
To cutter working edge, that is, blade side, the included angle A for spraying route and cutter is 120-160 °, as shown in Figure 1, what is sprayed is wear-resisting
After alloy powder impinges onto tool matrix, the contact area close to blade side is big, i.e., the face wrapped up by tool matrix material
Product is larger, and the contact area of the other side is small, the shock channel mainly left after wear resistant alloy powders and tool matrix shock,
For blade when being worked, greenfeed is direction tangent with blade and towards knife spine to the removing tractive force of wearing layer, described
The setting of spray angle can be such that removing tractive force largely acts directly on tool matrix material, and wear resistant alloy powders are inlayed
It is more firm in tool matrix material, it is not easy to be stripped, the wear resistant alloy powders after heating form with higher temperature
Grain, can hit when being sprayed on blade both sides of the face and heat touched tool matrix material, to be inserted into tool matrix
Be adhesively fixed in material and therewith, spraying gases used is acetylene, and spraying air pressure is 10MPa, acetylene as spray gas not only
It is capable of providing air pressure motive force, additionally it is possible to particle surface is wrapped in particle spray coating moving process, by the high temperature of particle, second
Alkynes gas burns to form high temperature wrapping layer in particle surface, preferably keeps the temperature of particle, particles hit enters cutter
The depth of matrix is deeper, and the two combines fixed state more preferable；
C, cladding
Cutter is put into vacuum furnace after spraying and is heated to 1120 DEG C, retention time 10min/200kg adds
Thermal process is the metallurgical bonding process of wear resistant alloy powders Yu tool matrix material, and the particle of wear resistant alloy powders is gradually heated up
In molten condition, semi-molten state, wear resistant alloy powders and surrounding cutter base is gradually presented in circumgranular tool matrix
Body material molten is combined into one structure, and the blade both sides of the face of cutter form the wearing layer of melting；
D, it is heat-treated
After heating take out cutter be cooled to 260 DEG C, then to cutter carry out nitrate quenching, Quenching Soaking Time according to
The thickness of cutter is set as 5-10min/mm, and cutter is taken out after quenching and is cooled to room temperature, and blade both sides of the face are clean,
It being tempered with fed to boiler, tempering temperature is 260-320 DEG C, and the retention time is set as 5-10min/mm according to the thickness of cutter,
It takes out cutter after tempering to be cooled to room temperature, the wearing layer preparation process of cutter terminates.
Embodiment 2 considers the wearability and cost of wearing layer as the optimization of embodiment 1, and wear resistant alloy powders include pressing
Powder according to 40% nickel powder, 35% tungsten-carbide powder and 25% diamond dust of mass percent mixing, under this kind of ratio
The wearing layer of end preparation had both had preferable wearability, and since the content of diamond dust reduces, and had advantage at low cost,
Therefore in actual application, select the wearing layer of such powder proportions preferable, then according in such as embodiment 1 sandblasting,
Spraying, cladding and heat treatment and etc. carry out the preparation of wearing layer, obtained cutter is applied in greenfeed cutting and grinders
In work, the effect of wearability can either be played, increases cutting-tool's used life, improves working effect, and can save to greatest extent
Cost-saving.
When being carried out the cutting of greenfeed using the cutter in the present invention, crushed, the wear-resisting property of blade is preferable, and cutter is more used
More blunt phenomenon be improved significantly, working life greatly prolongs length, and cutter can be realized fly-cutting in use, keeps away
Exempted from blade to greenfeed cut and constantly caused by contact for a long time, overcome cutter tipping caused by the toughness of greenfeed itself
Deng damage phenomenon, the use process of cutter is more stable, and the increase of wearability makes cutter in prolonged working life
It remains such state, is less prone to the damage of cutter, the working effect of cutter can be kept for a long time.
Claims (5)
1. a kind of wearing layer preparation method of greenfeed dedicated tool, this method uses wear resistant alloy powders in the blade two of cutter
Side end face prepares wearing layer, which is characterized in that the wearing layer preparation method the following steps are included:
A, sandblasting
Blasting treatment is carried out in blade both sides of the face, processing rear surface roughness is not more than 16, by removing surface after sandblasting
Completely；
B, it sprays
Wear resistant alloy powders are heated to 1000-1100 DEG C with flame sprayer and are sprayed on blade both sides of the face, institute is sprayed
It is acetylene with gas, spraying air pressure is 8-12MPa；
C, cladding
Cutter is put into vacuum furnace after spraying and is heated to 1100-1200 DEG C, retention time 10min/200kg；
D, it is heat-treated
Cutter is taken out after heating and is cooled to 260 DEG C, nitrate quenching then is carried out to cutter, Quenching Soaking Time is according to cutter
Thickness be set as 5-10min/mm, after quenching take out cutter be cooled to room temperature, blade both sides of the face are clean, then
Enter furnace to be tempered, tempering temperature is 260-320 DEG C, and the retention time is set as 5-10min/mm according to the thickness of cutter, tempering
After take out cutter be cooled to room temperature, the wearing layer preparation process of cutter terminates；
In the step B, towards cutter working edge, that is, blade side when spraying, the included angle A for spraying route and cutter is 120-
160°。
2. a kind of wearing layer preparation method of greenfeed dedicated tool according to claim 1, it is characterised in that: described
Wear resistant alloy powders include 40% nickel powder mixed according to mass percent, the tungsten-carbide powder and 25%- of 10%-35%
50% diamond dust.
3. a kind of wearing layer preparation method of greenfeed dedicated tool according to claim 2, it is characterised in that: described
Nickel powder granularity is 35-45 mesh, and tungsten carbide size is 50-70 mesh.
4. a kind of wearing layer preparation method of greenfeed dedicated tool according to claim 1, it is characterised in that: described
In step B, wear resistant alloy powders heating temperature is 1050 DEG C, and spraying air pressure is 10MPa.
5. a kind of wearing layer preparation method of greenfeed dedicated tool according to claim 1, it is characterised in that: described
In step C, cutter heating temperature is 1120 DEG C.
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| CN201710045546.2A CN106702304B (en) | 2017-01-22 | 2017-01-22 | A kind of wearing layer preparation method of greenfeed dedicated tool |
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| CN201710045546.2A CN106702304B (en) | 2017-01-22 | 2017-01-22 | A kind of wearing layer preparation method of greenfeed dedicated tool |
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| CN106702304B true CN106702304B (en) | 2019-06-11 |
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| CN111266819A (en) * | 2020-04-16 | 2020-06-12 | 东莞市星品精密模具有限公司 | Boring cutter machining process with mirror surface effect |
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| EP2287359B1 (en) * | 2009-07-03 | 2012-05-23 | Sandvik Intellectual Property AB | Coated cutting tool insert |
| CN102230173B (en) * | 2010-06-22 | 2013-04-24 | 张宗海 | Full-coating cladding thread element for parallel double-screw extruder |
| US9434034B2 (en) * | 2014-11-20 | 2016-09-06 | Jung Woo NAM | Method of manufacturing cemented carbide cutting tool and cutting tool manufactured by the method |
| CN106319421A (en) * | 2015-06-23 | 2017-01-11 | 中南大学 | Preparation method for abrasion and corrosion resistant coating layer for aircraft undercarriage |
| CN104911586A (en) * | 2015-07-03 | 2015-09-16 | 上海材料研究所 | Method for cladding tungsten carbide coating on surface of metal substrate |
| CN105154893A (en) * | 2015-09-23 | 2015-12-16 | 宁波兴波机械有限公司 | Die heat treatment process for enhancing hardness of die |
| CN105177570A (en) * | 2015-10-19 | 2015-12-23 | 无锡清杨机械制造有限公司 | Surface coating process method |
| CN105506530A (en) * | 2015-12-15 | 2016-04-20 | 翟长生 | Mold surface composite strengthening method |
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| Title |
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| 镍基碳化钨复合涂层的组织和性能研究;张生欣;《中国优秀硕士学位论文全文数据库 工程科技I辑》;20160515;第14-20页 |
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Address after: 052160 Jia Shi Zhuang Zhen Guan Zhuang Cun Nan, Gaocheng District, Shijiazhuang City, Hebei Province Patentee after: Shijiazhuang Beichuang Tool Co.,Ltd. Address before: 052160 Jia Shi Zhuang Zhen Guan Zhuang Cun Nan, Gaocheng District, Shijiazhuang City, Hebei Province Patentee before: SHIJIAZHUANG GAOCHENG DISTRICT BEICHUANG TOOL CO.,LTD. |
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