CN105798290A - Method for evenly distributing diamond in matrix through diamond pelletizing - Google Patents
Method for evenly distributing diamond in matrix through diamond pelletizing Download PDFInfo
- Publication number
- CN105798290A CN105798290A CN201610238187.8A CN201610238187A CN105798290A CN 105798290 A CN105798290 A CN 105798290A CN 201610238187 A CN201610238187 A CN 201610238187A CN 105798290 A CN105798290 A CN 105798290A
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- China
- Prior art keywords
- diamond
- powder
- metal powder
- standard screen
- pelletizing
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Classifications
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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
- B22F1/17—Metallic particles coated with metal
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/04—Alloys containing less than 50% by weight of each constituent containing tin or lead
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
- C22C2026/006—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes with additional metal compounds being carbides
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Glanulating (AREA)
Abstract
The invention provides a method for evenly distributing diamonds in a matrix through diamond pelletizing. The method mainly comprises the following steps of powder premixing, binder compounding, diamond containing mixture doped adhesive stirring, scraper wiping and screening, rolling pelletizing and finished product baking. According to the method for evenly distributing the diamonds in the matrix through diamond pelletizing, adopted equipment is a chufa type coating machine, operation is easy, and cost is low. A pelletizing process of combining a rolling method and a wiping and screening method is adopted, diamond particles are wrapped by powder through rolling, and the grain size is controlled through the wiping and screening method. A pelletizing adhesive mainly comprises a water-based adhesive, and pollution caused by an organic solvent is eliminated. The independent diamond particles can be manufactured by wrapping the diamonds by multi-component metal powder with large specific gravity differences, manufacturing is easy and convenient, powder fluidity is good during loading and pressing after the diamonds are pelletized, and the diamonds are evenly distributed. Segregation and accumulation of the powder and the diamonds are effectively avoided.
Description
Technical field
The present invention relates to diamond particles manufacturing technology, especially relate to the granulation of one diamond and realize Buddha's warrior attendant
The method that stone is uniform in carcass.
Background technology
If diamond can be uniformly distributed in tool metal carcass, then each particle diamond just can fully be sent out
Wave its usefulness, so that the using effect of diamond tool is greatly improved.Realize the uniform method of diamond it
The metal powder material of sintering instrument is exactly wrapped in outside each particle diamond by one, the most every two particle diamonds it
Between have powder to be separated by, this parcel powder process be referred to as " diamond granulation ", through oversintering pressing process
This interval still makes to keep between diamond particles substantially homogeneous distribution.
Ultra-fine or thinner metal dust is main compound poor fluidity, when using volumetric method auto feed,
Often qualified blank of colding pressing cannot be obtained owing to weight error is excessive.Mix for the different powder of raising in industry
Close the mobility of material, to meet the requirement of volumetric method automatic cold-press, develop multiple granulating process method,
Such as high-speed mixing method, nebulization, squeezing and pressing method, wipe sieve method, rolling method, centrifuging, fluidization process etc..
But these methods are uniform the most inapplicable to diamond, or can not realize a diamond becomes a ball,
Or the powder that multicomponent powder, particularly specific gravity difference are big can not be used.And facility for granulating is general all
More complicated costliness.The bonding agent pelletized also is organic solvent, needs could transport with more complete environmental protection facility
OK.
Summary of the invention
For the deficiencies in the prior art, offer one diamond granulation is provided and realizes diamond at tire
Method uniform in body.It has simple for production, low cost and the uniform feature of diamond distribution, to solve
Diamond problem of skewness in carcass in prior art.
A kind of diamond is pelletized and is realized the method that diamond is uniform in carcass, and it comprises the following steps:
1) hybrid metal powder, and weigh a certain amount of metal powder material and diamond particles；
2) during diamond particles puts into container, adding binding agent, rapidly stirring makes every particle diamond surface be able to
Uniformly parcel one layer binder, rapidly joins metal powder material stirring, makes diamond surface coated metal powder,
It is easy to later stage surface be easier to viscous wrap up in metal powder material and grow up to the diamond granulation finished product of required size；
3) first open water chestnut type coating machine hot-air pre-heating coating pan before pelletizing, previous step embryo grain is imported coating pan
In, adjust engine speed make embryo grain can at the uniform velocity arrive peak along the bottom of a pan throw under will not be close to again a pot wall do from
The heart moves；
4) treat that powder is gradually done, spray into water-base adhesive and add appropriate powder, the powder of pot wall will be bonded at instrument
Material and embryo grain scrape, and treat that embryo grain and powder are fully contacted constantly parcel, are taken out by mixture and once sieve,
Carry out backwash with banister brush simultaneously and be broken into individual particle, regulate engine speed, until adding the whole trapping gold of powder
Hard rock granulating；
5) open air feed after powder is gradually dry and interior heater switch accelerated powder and is dried, until have metal powder material cigarette from
Coating pan mouth is emerged and is illustrated that particle drying is complete, and granule passes sequentially through the first standard screen and the second standard screen, institute
State the aperture more than described second standard screen, the aperture of the first standard screen, and described first standard screen and second is marked
Quasi-sieve is arranged up and down, and volume can not be forced to sieve by the granule hairbrush of the first standard screen greatly, granularity
Granule between the pore size of the first standard screen and the second standard screen is the granule of desired particle size；Logical
The little granule crossing the second standard screen is refunded in coating pan again, constantly repeats said process, until remaining little portion
Divide metal powder material；
6) granule made and unformed metal powder material are taken out, put into oven for drying standby.
Especially, described step 1) in the composition proportion of metal powder material be (by weight), WC:30～60%,
Ni:6～20%, Cu:8～16%, Sn:4～8%, Co:10～30%, Fe:10～20%.
Especially, described step 2) in binding agent be the lipoid substance solution being dissolved in isopropanol and acetone,
Its concentration is 20%.
Especially, described step 3) in the preheating temperature of coating pan be 65 DEG C～75 DEG C, preheating time be 13～
17min；The rotating speed of coating pan is 10-46r/min.
Especially, described step 4) in water-base adhesive be PVAC polyvinylalcohol solution, its concentration is 20%.
Especially, described step 6) in the drying temperature of baking oven be 95 DEG C～105 DEG C, drying time is 2 little
Time.
Compared with prior art the invention have the benefit that described diamond is pelletized and realize diamond at tire
The equipment that method uniform in body uses is water chestnut type coating machine, operates fairly simple, with low cost.We
Method have employed rolling method and wipes the granulating process that sieve method combines, and makes powder wrap up diamond particles to roll,
With wiping sieve method Control granularity.The mainly water-base adhesive that granulation bonding agent is selected, eliminates organic solvent and makes
The pollution become.Metal powder material trapping gold hard rock big for multicomponent specific gravity difference can be made the gold of
Hard rock granule, simple for production, diamond feeds after pelletizing, powder good fluidity when suppressing, diamond distribution
Uniformly.Effectively prevent powder and the segregation of diamond and gathering.
Detailed description of the invention
For ease of understanding the present invention, it is as follows that the present invention enumerates embodiment.Those skilled in the art it will be clearly understood that
The only help of described embodiment understands the present invention, is not construed as the concrete restriction to the present invention.
A kind of diamond is pelletized and is realized the method that diamond is uniform in carcass, and it comprises the following steps:
Step one: weigh powder 854g after the mixing of different metal mass percent, weigh according to the concentration of 110%
The diamond 100g of granularity 25/30, the composition proportion of metal powder material is (by weight), WC:30～60%,
Ni:6～20%, Cu:8～16%, Sn:4～8%, Co:10～30%, Fe:10～20%；
Step 2: diamond particles puts into mortar (or dried and clean shallow container), adds binding agent, institute
Stating bonding agent is the lipoid substance solution being dissolved in isopropanol and acetone, and its concentration is 20%, and stirring makes rapidly
A layer binder be able to be uniformly wrapped up on every particle diamond surface, rapidly joins compound stirring, makes diamond table
Bread wraps up in metal powder material, it is simple to later stage surface is easier to viscous wrap up in metal powder material to grow up to the Buddha's warrior attendant of required size made of stones
Grain finished product；
Step 3: (temperature rises to about 70 DEG C, heats up first to open water chestnut type coating machine hot blast before granulation
Time about 15min) preheating coating pan (glue rapid draing makes diamond surface powder glue and wraps up in firmly),
Previous step embryo grain is imported in coating pan, adjust engine speed and make embryo grain can at the uniform velocity arrive peak along the bottom of a pan
A pot wall will not be close to again under throwing and do centrifugal motion device major parameter: coating pan rotating speed 10-46r/min, produce energy
Power 1-2kg/ time；
Step 4: treat that powder is gradually done, sprays into water-base adhesive, and described water-base adhesive is PVAC polyvinylalcohol
Solution, its concentration is 20%, and (using atomizing watering can to spray into, consumption of binder is just the embryo dried before
Grain surface is drenched substantially), add appropriate powder (being supplemented with a part of powder as consumption of binder is more),
With instrument, the powder and embryo grain that are bonded at pot wall are scraped, treat that embryo grain and powder are fully contacted constantly parcel, use steel
Mixture was taken out 2.0mm standard screen by spoon to be carried out backwash with banister brush simultaneously and is broken into individual particle (variable grain
Can be sticked together, rule of thumb 25/30 grit diamond granulation size granule between 1.8-2.0mm is full
Foot needs), (granule can at the uniform velocity arrive under peak is thrown along the bottom of a pan will not be close to again a pot wall to regulation engine speed
Do centrifugal motion), until adding powder whole trapping gold hard rock granulating；
Step 5: air feed opened by powder after gradually doing and interior heater switch is accelerated powder and is dried, until there being metal powder
Material cigarette is emerged from coating pan mouth and is illustrated that particle drying is complete, and granule passes sequentially through 2.0mm and 1.8mm standard screen
Sieving, (2.0 and 1.8mm standard screens are arranged up and down, and volume more greatly can not be by the granule hair of 2.0 standard screens
Brush pressure is sieved), the granule between 2.0mm and 1.8mm standard screen is the granule of desired particle size.Pass through
The little granule of 1.8mm standard screen is refunded in coating pan again.Constantly repeat said process, until 854g powder
All use up (ensure that the concordance of concentration before and after the granulation of diamond).Constantly sieve screening granule, finally
Granule and the powder made in coating pan all collect (may still remain fraction powder and few complete
Entirely there is no the diamond of coated metal powder)；
Step 6: the granule made, unfashioned metal powder material, only a few diamond are put into rustless steel width
In mouthful container, put into 100 DEG C of baking oven for heating and dry 2 hours, pack after cooling, store for the short time and
Prevent granule humidity from crushing.
The granulation of above-mentioned diamond realizes diamond method uniform in carcass and can make the gold of
Belong to the diamond particles of powder parcel, the powder that multicomponent specific gravity difference is big, diamond simple for production can be used
Feed after granulation, powder good fluidity when suppressing, diamond distribution is uniform.Effectively prevent powder and Buddha's warrior attendant
The segregation of stone and gathering.
Applicant states, the present invention illustrates detailed process equipment and the technique of the present invention by above-described embodiment
Flow process, but the invention is not limited in above-mentioned detailed process equipment and technological process, i.e. do not mean that the present invention
Have to rely on above-mentioned detailed process equipment and technological process could be implemented.Person of ordinary skill in the field should
This understands, any improvement in the present invention, and the equivalence of raw material each to product of the present invention is replaced and auxiliary element
Interpolation, concrete way choice etc., within the scope of all falling within protection scope of the present invention and disclosure.
Claims (6)
1. one kind realizes, with diamond granulation, the method that diamond is uniform in carcass, it is characterised in that its bag
Include following steps:
1) hybrid metal powder, and weigh a certain amount of metal powder material and diamond particles；
2) during diamond particles puts into container, adding binding agent, rapidly stirring makes every particle diamond surface be able to
Uniformly parcel one layer binder, rapidly joins metal powder material stirring, makes diamond surface coated metal powder,
It is easy to later stage surface be easier to viscous wrap up in metal powder material and grow up to the diamond granulation finished product of required size；
3) first open water chestnut type coating machine hot-air pre-heating coating pan before pelletizing, previous step embryo grain is imported coating pan
In, adjust engine speed make embryo grain can at the uniform velocity arrive peak along the bottom of a pan throw under will not be close to again a pot wall do from
The heart moves；
4) treat that powder is gradually done, spray into water-base adhesive and add appropriate powder, the powder of pot wall will be bonded at instrument
Material and embryo grain scrape, and treat that embryo grain and powder are fully contacted constantly parcel, are taken out by mixture and once sieve,
Carry out backwash with banister brush simultaneously and be broken into individual particle, regulate engine speed, until adding the whole trapping gold of powder
Hard rock granulating；
5) open air feed after powder is gradually dry and interior heater switch accelerated powder and is dried, until have metal powder material cigarette from
Coating pan mouth is emerged and is illustrated that particle drying is complete, and granule passes sequentially through the first standard screen and the second standard screen, institute
State the aperture more than described second standard screen, the aperture of the first standard screen, and described first standard screen and second is marked
Quasi-sieve is arranged up and down, and volume can not be forced to sieve by the granule hairbrush of the first standard screen greatly, granularity
Granule between the pore size of the first standard screen and the second standard screen is the granule of desired particle size；Logical
The little granule crossing the second standard screen is refunded in coating pan again, constantly repeats said process, until remaining little portion
Divide metal powder material；
6) granule made and unformed metal powder material are taken out, put into oven for drying standby.
2. pelletize with diamond as claimed in claim 1 and realize the method that diamond is uniform in carcass, its
Be characterised by, described step 1) in the composition proportion of metal powder material be (by weight), WC:30-60%,
Ni:6-20%, Cu:8-16%, Sn:4-8%, Co:10-30%, Fe:10～20%.
3. pelletize with diamond as claimed in claim 1 and realize the method that diamond is uniform in carcass, its
Be characterised by, described step 2) in binding agent be the lipoid substance solution being dissolved in isopropanol and acetone, its
Concentration is 20%.
4. pelletize with diamond as claimed in claim 1 and realize the method that diamond is uniform in carcass, its
Be characterised by, described step 3) in the preheating temperature of coating pan be 65 DEG C～75 DEG C, preheating time be 13～
17min；The rotating speed of coating pan is 10-46r/min.
5. pelletize with diamond as claimed in claim 1 and realize the method that diamond is uniform in carcass, its
Be characterised by, described step 4) in water-base adhesive be PVAC polyvinylalcohol solution, its concentration is 20%.
6. pelletize with diamond as claimed in claim 1 and realize the method that diamond is uniform in carcass, its
Be characterised by, described step 6) in the drying temperature of baking oven be 95 DEG C～105 DEG C, drying time is 2 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610238187.8A CN105798290B (en) | 2016-04-15 | 2016-04-15 | It is a kind of to realize diamond method uniform in carcass with diamond granulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610238187.8A CN105798290B (en) | 2016-04-15 | 2016-04-15 | It is a kind of to realize diamond method uniform in carcass with diamond granulation |
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| CN105798290A true CN105798290A (en) | 2016-07-27 |
| CN105798290B CN105798290B (en) | 2018-02-06 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107043882A (en) * | 2017-03-17 | 2017-08-15 | 昆明理工大学 | A kind of preparation method of diamond composite |
| CN110523971A (en) * | 2019-09-12 | 2019-12-03 | 厦门高时实业有限公司 | A kind of method and diamond tool preparing diamond tool using vacuum pre-sintering |
| CN112077301A (en) * | 2019-10-24 | 2020-12-15 | 青岛新韩金刚石工业有限公司 | Method for coating diamond with metal powder |
| CN114012089A (en) * | 2020-10-20 | 2022-02-08 | 北京安泰钢研超硬材料制品有限责任公司 | Preparation method and generation device of diamond coated ball |
| CN116197397A (en) * | 2023-02-23 | 2023-06-02 | 长沙百通新材料科技有限公司 | Diamond bead and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110643880B (en) * | 2019-11-07 | 2020-11-13 | 广东省材料与加工研究所 | Drill bit matrix material and preparation method thereof |
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| JP2005336525A (en) * | 2004-05-25 | 2005-12-08 | Ace Giken:Kk | Composite powder for forming metal product and method for manufacturing granular material for forming, and method for producing metal product |
| CN102251139A (en) * | 2011-07-08 | 2011-11-23 | 中国航空工业集团公司北京航空材料研究院 | Preparation method of high-volume-fraction diamond/aluminum composite material with heat conduction function |
| CN102581271A (en) * | 2012-03-30 | 2012-07-18 | 吉林大学 | Powder metallurgy material mixing method |
| CN103878375A (en) * | 2012-12-20 | 2014-06-25 | 北京有色金属研究总院 | Manufacturing method of positioned arranged superhard tool bit |
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| JPH04218602A (en) * | 1990-12-18 | 1992-08-10 | Fukuda Metal Foil & Powder Co Ltd | Production of metal coated composite powder |
| JP2005336525A (en) * | 2004-05-25 | 2005-12-08 | Ace Giken:Kk | Composite powder for forming metal product and method for manufacturing granular material for forming, and method for producing metal product |
| CN102251139A (en) * | 2011-07-08 | 2011-11-23 | 中国航空工业集团公司北京航空材料研究院 | Preparation method of high-volume-fraction diamond/aluminum composite material with heat conduction function |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107043882A (en) * | 2017-03-17 | 2017-08-15 | 昆明理工大学 | A kind of preparation method of diamond composite |
| CN107043882B (en) * | 2017-03-17 | 2018-07-24 | 昆明理工大学 | A kind of preparation method of diamond composite |
| CN110523971A (en) * | 2019-09-12 | 2019-12-03 | 厦门高时实业有限公司 | A kind of method and diamond tool preparing diamond tool using vacuum pre-sintering |
| CN110523971B (en) * | 2019-09-12 | 2021-11-09 | 厦门高时实业有限公司 | Method for preparing diamond tool by adopting vacuum pre-sintering and diamond tool |
| CN112077301A (en) * | 2019-10-24 | 2020-12-15 | 青岛新韩金刚石工业有限公司 | Method for coating diamond with metal powder |
| CN114012089A (en) * | 2020-10-20 | 2022-02-08 | 北京安泰钢研超硬材料制品有限责任公司 | Preparation method and generation device of diamond coated ball |
| CN114012089B (en) * | 2020-10-20 | 2023-10-10 | 北京安泰钢研超硬材料制品有限责任公司 | Preparation method and generation device of diamond coated ball |
| CN116197397A (en) * | 2023-02-23 | 2023-06-02 | 长沙百通新材料科技有限公司 | Diamond bead and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN105798290B (en) | 2018-02-06 |
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Address after: 214174, Chang 8 Garden Road, Huishan Economic Development Zone, Huishan District, Jiangsu, Wuxi Patentee after: Zhongdizhuang (Wuxi) drilling tools Co., Ltd Address before: 214174, Chang 8 Garden Road, Huishan Economic Development Zone, Huishan District, Jiangsu, Wuxi Patentee before: WUXI DRILLING TOOLS FACTORY |
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