CN109047749A - The preparation method of environment-friendly type cemented carbide powder feeding and hard alloy components - Google Patents
The preparation method of environment-friendly type cemented carbide powder feeding and hard alloy components Download PDFInfo
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- CN109047749A CN109047749A CN201810791607.4A CN201810791607A CN109047749A CN 109047749 A CN109047749 A CN 109047749A CN 201810791607 A CN201810791607 A CN 201810791607A CN 109047749 A CN109047749 A CN 109047749A
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- cemented carbide
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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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/102—Metallic powder coated with organic material
-
- 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
- B22F1/10—Metallic powder containing lubricating or binding agents; Metallic powder containing organic material
- B22F1/108—Mixtures obtained by warm mixing
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
Abstract
The present invention relates to a kind of environment-friendly type cemented carbide powder feeding and preparation method thereof, including cemented carbide powder and forming agent, the cemented carbide powder is YG8 W-Co kind cemented carbide powder, and partial size is 10~20 μm, 9~10g/cm of tap density3, the diameter 5mm-10mm of sintered carbide ball.The invention has the advantages that changing conventional rigid alloy, processing difficulties by invention hard alloy compression moulding feeding and production technology, process-cycle is long, the high shortcoming of processing cost greatly reduces the production and processing cost of complexity cemented carbide parts, improves the advanced innovation level of domestic manufacturing industry.
Description
Technical field
The present invention relates to the preparation methods of a kind of environment-friendly type cemented carbide powder feeding and cemented carbide parts product.
Background technique
With being constantly progressive for social science and technology and flourishing for global industry, powder metallurgy due to its plurality of advantages,
Industry development is rapid, and technology has been widely used in the fields such as military affairs, traffic, machinery, electronics, space flight, aviation.
Feeding is Powder Metallurgy Industry core head section technique, is with forming agent by metal powder according to a certain percentage certain
Under the conditions of, the material that is homogenously mixed together by equipment.Cemented carbide material, because of manufactured fabricated part, high with hardness,
A series of excellent performances such as wear-resisting, intensity and toughness are preferable, heat-resisting, corrosion-resistant, are widely used in all trades and professions, while also because of it
Hardness is high, and density is big >=14.2g/cm3, traditional production and processing method production efficiency is low, processing difficulties, and processing cost is high, and
Powder metallurgy pressing moulding process has congenital sexual clorminance, can be by modern mature Tool and Die Technology, product hair is made
Base, product wholly or largely structure can be completed by designing corresponding mold cavity, greatly improve production efficiency,
It reduces enterprise and produces and processes cost, be always a development innovation direction of industry.
Because of traditional cemented carbide parts manufacturing method, production efficiency is low, and processing difficulties processing costs is high, entirely without
Method meets the manufacturing high speed development of modern society.
Summary of the invention
To overcome the shortcomings of existing technologies, the present invention provides a kind of environment-friendly type hard alloy powder metallurgical and hard alloy zero
The preparation method of part product, the technical scheme is that
A kind of environment-friendly type cemented carbide powder feeding, including cemented carbide powder, sintered carbide ball and forming agent, the two is by weight
Ratio than 1000:2~1000:5 is prepared, and the cemented carbide powder is YG8 W-Co kind cemented carbide powder, partial size is
10~20 μm, 9~10g/cm of tap density3。
The forming agent includes each component of following parts by weight, 44 parts -46 parts of semi-refined paraffin wax, 44 parts of polyethylene glycol -
46 parts, -11 parts of nylon 9.
45 parts of the semi-refined paraffin wax, 45 parts of polyethylene glycol, 10 parts of polyethylene glycol, 10 parts of nylon.
A method of preparing environment-friendly type cemented carbide powder feeding, comprising the following steps:
S1, planetary ball mill kneading tank is opened, the mixed material that forming agent and cemented carbide powder are formed is added, is then added 80 DEG C
The above pure water, adds alcohol；Wherein, the volume of pure water and alcohol is 1:1, the plastid ratio of mixed material and pure water
It (g/ml) is 20:1；
S2, diameter sintered carbide ball is added, covers and is locked after being kneaded cover；Wherein, the total weight of the sintered carbide ball of addition
For the 30%-50% of powder and forming agent total weight, the diameter 5mm-10mm of the sintered carbide ball.
S3, starting planetary ball mill, revolving speed turn for 300-500 per minute, and runing time 30-40min forms feeding half
Finished product；
After feeding semi-finished product in S4, taking-up step S3, it is put into electric oven, dries, 50-60 DEG C of drying temperature, time 20-
30min;It is ground after drying, after the sieve by 30-40 mesh, completes feeding preparation.
A kind of preparation method of cemented carbide parts product, comprising the following steps:
S4, selection take the mold of required product specification, are installed on pressure forming machine, and the feeding of preparation is packed into pressure forming machine
Interior, processing forms manufactured part blank, and manufactured part blank pressure is 9-12 tons every square centimeter, dwell time 0.5-1 second, close
Scale standard is 8.5 ± 0.03g/cm3；
S5, manufactured part blank is packed into closed pressure sintering furnace, carries out pressure sintering, sintering pressure after being passed through argon gas
3MPa, obtains cemented carbide parts product, density >=14.1g/cm by 1390 DEG C~1450 DEG C of temperature after coming out of the stove3。
The invention has the advantages that changing conventional rigid by invention hard alloy compression moulding feeding and production technology and closing
Gold, processing difficulties, the process-cycle is long, the high shortcoming of processing cost, greatly reduces the production and processing of complexity cemented carbide parts
Cost improves the advanced innovation level of domestic manufacturing industry.
Specific embodiment
The invention will now be further described with reference to specific embodiments, the advantages and features of the present invention will be with description and
It is apparent.But examples are merely exemplary for these, and it is not intended to limit the scope of the present invention in any way.Those skilled in the art
Member it should be understood that without departing from the spirit and scope of the invention can details to technical solution of the present invention and form into
Row modifications or substitutions, but these modifications and replacement are fallen within the protection scope of the present invention.
Embodiment 1: a kind of environment-friendly type cemented carbide powder feeding, including cemented carbide powder, sintered carbide ball and molding
Agent, the two are prepared by weight the ratio of 1000:2, and the cemented carbide powder is YG8 W-Co kind cemented carbide powder,
Partial size is 10 μm, tap density 9g/cm3。
The forming agent includes each component of following parts by weight, 44 parts of semi-refined paraffin wax, and 44 parts of polyethylene glycol, nylon 9
Part.Wherein, semi-refined paraffin wax fusing point is low, and >=60 DEG C, tensile strength, caking property is good, and cleanliness is high, and chemical stability is good, is not easy
It decomposes.The AR grade molecular weight 2000 of polyethylene glycol, molecular weight more high fluidity is poorer；Nylon is injection stage, 1801 models.This is matched
The features such as molding machine of side has forming stability good, and degreasing speed is fast, and product size stablizes asepsis environment-protecting can be applied to each
The labyrinth hart metal product that kind compacting tool set can work it out.
A method of preparing environment-friendly type cemented carbide powder feeding, comprising the following steps:
S1, planetary ball mill kneading tank is opened, the mixed material that forming agent and cemented carbide powder are formed is added, is then added 80 DEG C
The above pure water, adds alcohol；Wherein, the volume of pure water and alcohol is 1:1, and the plastid ratio of mixed material and pure water is
20:1, the unit of mixed material are gram that the unit of pure water is milliliter.
S2, diameter sintered carbide ball is added, covers and is locked after being kneaded cover；Wherein, the sintered carbide ball of addition is total
Weight is the 30% of powder and forming agent total weight；The diameter 5mm of the sintered carbide ball.
S3, starting planetary ball mill, revolving speed are 300 turns per minute, runing time 30min, form feeding semi-finished product；Firmly
Matter alloying pellet does not participate in reaction in ball milling mixing process, all takes out after the completion of ball milling calendering process, play the role of supplemented by
Stirring is helped to expect.
After feeding semi-finished product in S4, taking-up step S3, it is put into electric oven, dries, 50 DEG C of drying temperature, the time
30min;It is ground after drying, after the sieve by 30 mesh, completes feeding preparation.
A kind of preparation method of cemented carbide parts product, comprising the following steps:
S4, selection take the mold of required product specification, are installed on pressure forming machine, and the feeding of preparation is packed into pressure forming machine
It is interior, by the corresponding technological parameter of setting, processes and form manufactured part blank, 9 tons every square centimeter of manufactured part blank pressure,
Dwell time 0.5 second, density criterion 8.47g/cm3；
S5, manufactured part blank is packed into closed pressure sintering furnace, carries out pressure sintering, sintering pressure after being passed through argon gas
3MPa, obtains cemented carbide parts product, density 14.2183g/cm by 1390 DEG C of temperature after coming out of the stove3。
Embodiment 2: a kind of environment-friendly type cemented carbide powder feeding, including cemented carbide powder, sintered carbide ball and molding
Agent, the two are prepared by weight the ratio of 1000:3, and the cemented carbide powder is YG8 W-Co kind cemented carbide powder,
Partial size is 15 μm, tap density 9g/cm3。
45 parts of the semi-refined paraffin wax, 45 parts of polyethylene glycol, 10 parts of polyethylene glycol, 10 parts of nylon.
A method of preparing environment-friendly type cemented carbide powder feeding, comprising the following steps:
S1, planetary ball mill kneading tank is opened, the mixed material that forming agent and cemented carbide powder are formed is added, is then added 80 DEG C
The above pure water, adds alcohol；Wherein, the volume of pure water and alcohol is 1:1, the plastid ratio of mixed material and pure water
It (g/ml) is 20:1；
S2, diameter sintered carbide ball is added, covers and is locked after being kneaded cover；Wherein, the total weight of the sintered carbide ball of addition
For powder and the 40% of forming agent total weight；The diameter 6mm of the sintered carbide ball.
S3, starting planetary ball mill, revolving speed are 400 turns per minute, runing time 35min, form feeding semi-finished product；
After feeding semi-finished product in S4, taking-up step S3, it is put into electric oven, dries, 55 DEG C of drying temperature, time 25min;It dries
It is ground after dry, after the sieve by 35 mesh, completes feeding preparation.
A kind of preparation method of cemented carbide parts product, comprising the following steps:
S4, selection take the mold of required product specification, are installed on pressure forming machine, and the feeding of preparation is packed into pressure forming machine
It is interior, it processes and forms manufactured part blank, 10 tons every square centimeter of manufactured part blank pressure, the dwell time 1 second, density criterion
For 8.5g/cm3；
S5, manufactured part blank is packed into closed pressure sintering furnace, carries out pressure sintering, sintering pressure after being passed through argon gas
3MPa, obtains cemented carbide parts product, density 14.1927g/cm by 1400 DEG C of temperature after coming out of the stove3。
Embodiment 3: a kind of environment-friendly type cemented carbide powder feeding, including cemented carbide powder and forming agent, the two is by weight
The ratio than 1000:5 is measured to prepare, the cemented carbide powder is YG8 W-Co kind cemented carbide powder, and partial size is 18 μm,
Tap density 10g/cm3。
The forming agent includes each component of following parts by weight, 46 parts of semi-refined paraffin wax, and 46 parts of polyethylene glycol, nylon 11
Part.
A method of preparing environment-friendly type cemented carbide powder feeding, comprising the following steps:
S1, planetary ball mill kneading tank is opened, the mixed material that forming agent and cemented carbide powder are formed is added, is then added 80 DEG C
The above pure water, adds alcohol；Wherein, the volume of pure water and alcohol is 1:1, the plastid ratio of mixed material and pure water
It (g/ml) is 20:1；
S2, diameter sintered carbide ball is added, covers and is locked after being kneaded cover；Wherein, the total weight of the sintered carbide ball of addition
For powder and the 50% of forming agent total weight；The diameter 10mm of the sintered carbide ball；
S3, starting planetary ball mill, revolving speed are 500 turns per minute, runing time 40min, form feeding semi-finished product；
After feeding semi-finished product in S4, taking-up step S3, it is put into electric oven, dries, 60 DEG C of drying temperature, time 30min;It dries
It is ground after dry, after the sieve by 40 mesh, completes feeding preparation.
A kind of preparation method of cemented carbide parts product, comprising the following steps:
S5, selection take the mold of required product specification, are installed on pressure forming machine, and the feeding of preparation is packed into pressure forming machine
It is interior, it processes and forms manufactured part blank, 12 tons every square centimeter of manufactured part blank pressure, the dwell time 1 second, density criterion
For 8.53g/cm3；
S6, manufactured part blank is packed into closed pressure sintering furnace, carries out pressure sintering, sintering pressure after being passed through argon gas
3MPa, obtains cemented carbide parts product, density 14.2124g/cm by 1450 DEG C of temperature after coming out of the stove3。
Embodiment 4: a kind of environment-friendly type cemented carbide powder feeding, including cemented carbide powder and forming agent, between the two
Proportion be 1000:4, the cemented carbide powder be YG8 W-Co kind cemented carbide powder, partial size be 18 μm, tap density
10g/cm3。
The forming agent includes each component of following parts by weight, 45 parts of semi-refined paraffin wax, and 44 parts of polyethylene glycol, nylon 10
Part.
A method of preparing environment-friendly type cemented carbide powder feeding, comprising the following steps:
S1, planetary ball mill kneading tank is opened, the mixed material that forming agent and cemented carbide powder are formed is added, is then added 80 DEG C
The above pure water, adds alcohol；Wherein, the volume of pure water and alcohol is 1:1, the plastid ratio of mixed material and pure water
It (g/ml) is 20:1；
S2, diameter sintered carbide ball is added, covers and is locked after being kneaded cover；Wherein, the total weight of the sintered carbide ball of addition
For powder and the 36% of forming agent total weight；
S3, starting planetary ball mill, revolving speed are 450 turns per minute, runing time 35min, form feeding semi-finished product；
After feeding semi-finished product in S4, taking-up step S3, it is put into electric oven, dries, 55 DEG C of drying temperature, time 30min;It dries
It is ground after dry, after the sieve by 35 mesh, completes feeding preparation.
A kind of preparation method of cemented carbide parts product, comprising the following steps:
S4, selection take the mold of required product specification, are installed on pressure forming machine, and the feeding of preparation is packed into pressure forming machine
It is interior, it processes and forms manufactured part blank, 11 tons every square centimeter of manufactured part blank pressure, the dwell time 1 second, density criterion
For 8.5g/cm3；
S5, manufactured part blank is packed into closed pressure sintering furnace, carries out pressure sintering, sintering pressure after being passed through argon gas
3MPa, obtains cemented carbide parts product, density 14.21g/cm by 1450 DEG C of temperature after coming out of the stove3。
Embodiment 5: a kind of environment-friendly type cemented carbide powder feeding, including cemented carbide powder and forming agent, between the two
Proportion be 1000:4.5, the cemented carbide powder be YG8 W-Co kind cemented carbide powder, partial size be 19 μm, vibration density
Spend 9g/cm3。
The forming agent includes each component of following parts by weight, 46 parts of semi-refined paraffin wax, and 44 parts of polyethylene glycol, nylon 9
Part.
A method of preparing environment-friendly type cemented carbide powder feeding, comprising the following steps:
S1, planetary ball mill kneading tank is opened, the mixed material that forming agent and cemented carbide powder are formed is added, is then added 80 DEG C
The above pure water, adds alcohol；Wherein, the volume of pure water and alcohol is 1:1, the plastid ratio of mixed material and pure water
It (g/ml) is 20:1；
S2, diameter sintered carbide ball is added, covers and is locked after being kneaded cover；The diameter 7mm of the sintered carbide ball,
In, the total weight of the sintered carbide ball of addition is the 45% of powder and forming agent total weight；
S3, starting planetary ball mill, revolving speed are 300 turns per minute, runing time 30min, form feeding semi-finished product；
After feeding semi-finished product in S4, taking-up step S3, it is put into electric oven, dries, 55 DEG C of drying temperature, time 26min;It dries
It is ground after dry, after the sieve by 33 mesh, completes feeding preparation.
A kind of preparation method of cemented carbide parts product, which comprises the following steps:
S4, selection take the mold of required product specification, are installed on pressure forming machine, and the feeding of preparation is packed into pressure forming machine
It is interior, it processes and forms manufactured part blank, 10 tons every square centimeter of manufactured part blank pressure, the dwell time 0.5 second, density criterion
For 8.5g/cm3；
S5, manufactured part blank is packed into closed pressure sintering furnace, carries out pressure sintering, sintering pressure after being passed through argon gas
3MPa, obtains cemented carbide parts product, density 14.2155g/cm by 1390 DEG C of temperature after coming out of the stove3。
According to different product requirements, different plain grindings is carried out, polishing etc. processing is full to reach product drawing requirement
Sufficient client uses.
Sample detection data
The hard alloy taken injection moulding feeding is made by this technology invention, each parameter has reached traditional handicraft and make
Sample parameters, of the invention is mainly characterized in that, by injection mold advantage, has just completed product 95% in the molding blank stage
Above structure external form substantially reduces the post-processing amount of product, reduces cost, raising efficiency.
Claims (5)
1. a kind of environment-friendly type cemented carbide powder feeding, which is characterized in that including cemented carbide powder and forming agent, the two is by weight
The ratio than 1000:2~1000:5 is measured to prepare, the cemented carbide powder is YG8 W-Co kind cemented carbide powder, partial size
It is 10~20 μm, 9~10g/cm of tap density3。
2. environment-friendly type cemented carbide powder feeding according to claim 1, which is characterized in that the forming agent include with
The each component of lower parts by weight, 44 parts -46 parts of semi-refined paraffin wax, 44 parts -46 parts of polyethylene glycol, -11 parts of nylon 9.
3. environment-friendly type cemented carbide powder feeding according to claim 1, which is characterized in that the semi-refined paraffin wax 45
Part, 45 parts of polyethylene glycol, 10 parts of polyethylene glycol, 10 parts of nylon.
4. a kind of method for preparing claims 1 to 3 any one environment-friendly type hard alloy powder metallurgical compacting feeding, feature
It is, comprising the following steps:
S1, planetary ball mill kneading tank is opened, the mixed material that forming agent and cemented carbide powder are formed is added, is then added 80 DEG C
The above pure water, adds alcohol；Wherein, the volume of pure water and alcohol is 1:1, and the plastid ratio of mixed material and pure water is
20:1；
S2, diameter sintered carbide ball is added, covers and is locked after being kneaded cover；Wherein, the total weight of the sintered carbide ball of addition
For the 30%-50% of powder and forming agent total weight；The diameter 5mm-10mm of the sintered carbide ball；
S3, starting planetary ball mill, revolving speed be 300-500 per minute turn, runing time 30-40min, formed feeding partly at
Product；
After feeding semi-finished product in S4, taking-up step S3, it is put into electric oven, dries, 50-60 DEG C of drying temperature, time 20-
30min;It is ground after drying, after the sieve by 30-40 mesh, completes feeding preparation.
5. a kind of preparation method of cemented carbide parts product, which comprises the following steps:
S4, selection take the mold of required product specification, are installed on pressure forming machine, and feeding prepared by claim 4 is packed into
In pressure forming machine, processing forms manufactured part blank, and manufactured part blank pressure is 9-12 tons every square centimeter, the dwell time
0.5-1 seconds, density criterion was 8.5 ± 0.03g/cm3；
S5, manufactured part blank is packed into closed pressure sintering furnace, carries out pressure sintering, sintering pressure after being passed through argon gas
3MPa, obtains cemented carbide parts product, density >=14.1g/cm by 1390 DEG C~1450 DEG C of temperature after coming out of the stove3。
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