CN109966994A - A kind of diamond synthesizing compound block for transmitting pressure and preparation method thereof - Google Patents
A kind of diamond synthesizing compound block for transmitting pressure and preparation method thereof Download PDFInfo
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- CN109966994A CN109966994A CN201910343307.4A CN201910343307A CN109966994A CN 109966994 A CN109966994 A CN 109966994A CN 201910343307 A CN201910343307 A CN 201910343307A CN 109966994 A CN109966994 A CN 109966994A
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- internal lining
- lining pipe
- pyrophillite
- transmitting pressure
- matrix
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/06—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2203/00—Processes utilising sub- or super atmospheric pressure
- B01J2203/06—High pressure synthesis
- B01J2203/065—Composition of the material produced
- B01J2203/0655—Diamond
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Abstract
The invention discloses a kind of diamond synthesizing compound block for transmitting pressure and preparation method thereof.Compound block for transmitting pressure includes the first internal lining pipe, the second internal lining pipe and pyrophillite matrix, and the second internal lining pipe is located on the inside of compound block for transmitting pressure, and pyrophillite matrix is located on the outside of compound block for transmitting pressure；First internal lining pipe is arranged between the second internal lining pipe and pyrophillite matrix；The height of two internal lining pipes is equal.Using dolomite, sodium chloride, ethylene glycol and mica powder as raw material, glass cement is added and mixes sieving, is pressed into the first internal lining pipe；Using magnesia, zirconium oxide, ethylene glycol and mica powder as raw material, glass cement is added and mixes sieving, is pressed into the second internal lining pipe；Using pyrophyllite powder as raw material, glass cement is added and mixes fermentation, is pressed into pyrophillite matrix；Three is organized and merges compacting, compound block for transmitting pressure is obtained, is finally handled, obtain product.Product of the present invention thermal insulation property is good, can meet synthesis growth for a long time, to meet the high-quality stable synthesis of different grain size diamond.
Description
Technical field
The present invention relates to superhard material Synthetic block technical fields, and in particular to a kind of compound block for transmitting pressure of diamond synthesizing and
Preparation method.
Background technique
In Diamond Synthesizing Technology field, main auxiliary material has pyrophyllite block, plug component, heating component, will
Said modules and stem assemble to form a Synthetic block as required, and wherein pyrophillite is most important auxiliary material, and leaf is cured
Stone plays the effects of pressure transmission, sealing, heat preservation and insulation in the synthesis process.
Diamond single crystal is widely used in machinery, electronics, space flight, optical instrument, stone as current superhard refined abrasive
Fields and the department such as oil and military project, have wide development space and application prospect.Currently, block for transmitting pressure is used in conventional PCD synthesis
It is the pyrophyllite block using dolomite as liner, although dolomite has relatively good heat insulation effect, with generated time
Extension, dolomite blackening, pyrophillite phase transformation be serious, pressure transmission and thermal insulation property dramatic decrease, diamond synthesizing quality by
Larger impact, particularly with the longer bulky diamond of generated time, it is more difficult to meet the requirements, seriously limit high grade and
The high-quality synthesis of bulky diamond.Therefore, how to prepare a kind of high pressure transmission and the better composite block of thermal insulation property is to be badly in need of solution
Major issue certainly.Moreover, because the temperature requirement of High-quality diamond synthesis is especially high and range is relatively narrow, common package assembly
It is easier to cause temperature inconsistent and heat bridges, leads to the damage of contact surface top hammer, to cause greater loss.
Summary of the invention
The technical problem to be solved by the present invention is in order to overcome diamond synthesizing to be existed in the prior art with compound block for transmitting pressure
Shortcoming, the present invention provides a kind of diamond synthesizing compound block for transmitting pressure and preparation method thereof.Technical side through the invention
Case is able to solve because liner is single, easy phase transformation leads to pressure transmission and thermal insulation property declines and the decline of diamond synthesis quality and is difficult to
Meet many technical problems that synthesis requires for a long time.
To solve the above-mentioned problems, the technical solution adopted by the present invention is that:
The present invention provides a kind of diamond synthesizing compound block for transmitting pressure, and the compound block for transmitting pressure includes the first internal lining pipe, the
Two internal lining pipes and pyrophillite matrix, second internal lining pipe are located at the inside of compound block for transmitting pressure, and pyrophillite matrix is located at compound biography
The outside of briquetting；First internal lining pipe is arranged between the second internal lining pipe and pyrophillite matrix；The height of first internal lining pipe with
The height of second internal lining pipe is equal.
According to the compound block for transmitting pressure of above-mentioned diamond synthesizing, the pyrophillite matrix is the groove structure of square-outside and round-inside,
The height of the groove is consistent with the height of the first internal lining pipe and the second internal lining pipe, and step is equipped at pyrophillite groove of substrate.
According to the compound block for transmitting pressure of above-mentioned diamond synthesizing, the cavity diameter and the first internal lining pipe of the pyrophillite matrix
Outer diameter is consistent, and diameter of bore is consistent with the second liner bore at pyrophillite matrix step.
According to the compound block for transmitting pressure of above-mentioned diamond synthesizing, the height at the pyrophillite matrix step is 10~
15mm。
According to the compound block for transmitting pressure of above-mentioned diamond synthesizing, first internal lining pipe with a thickness of 2~5mm, in second
Bushing pipe with a thickness of 2~4mm, pyrophillite matrix with a thickness of 3~5mm.
Additionally, it is provided a kind of preparation method of diamond synthesizing with compound block for transmitting pressure, the preparation method includes following step
It is rapid:
A, the preparation of the first internal lining pipe:
Indicated with parts by weight, first by 70~90 parts of raw material dolomite, 10~20 parts of sodium chloride, 1~3 part of ethylene glycol and
0.2~0.5 part of mica powder is mixed, and is added 5~7 parts of glass cement after mixing and is stirred, carried out after mixing evenly
Mixture after sieving is finally pressed into cylindric i.e. the first internal lining pipe by moulding press by sieve；
B, the preparation of the second internal lining pipe:
It is indicated with parts by weight, by 60~80 parts of raw material magnesia, 10~40 parts of zirconium oxide, 1~2 part of ethylene glycol and mica
0.5~0.8 part of powder is mixed, and is added 3~5 parts of glass cement after mixing and is stirred, is sieved after mixing evenly, most
Mixture after sieving is pressed into cylindric i.e. the second internal lining pipe by moulding press afterwards；
C, the preparation of pyrophillite matrix:
Raw material pyrophyllite powder is prepared according to three kinds of granularities of carse, medium and small material first, between carse, medium and small material three
Weight ratio is 3:5:2, and glass cement is added after preparation and is stirred, the additional amount of glass cement accounts for three kinds of granularity pyrophyllite powder gross weights
The 6~7% of amount, ferment after mixing evenly, fermentation time 12h, and fermentation temperature is 25~30 DEG C, finally will be after fermentation
Material is pressed into the pyrophillite matrix of square-outside and round-inside through moulding press；
D, the compound suppressing of pyrophyllite block:
The first internal lining pipe, the second internal lining pipe and the pyrophillite matrix that above step is prepared are according to above-mentioned compound pressure transmission
The structural relation of block is combined, and is then placed in moulding press and is carried out secondary compound suppressing, and compound block for transmitting pressure is formed；
E, pyrophyllite block is handled:
The compound block for transmitting pressure that step d is suppressed carries out flat stone mill, and removal end face suppresses overlap, obtains answering for size qualification
Close block for transmitting pressure；Then composite block is subjected to a point weight, baking, obtains product diamond synthesizing with compound block for transmitting pressure after the completion of baking.
According to the above-mentioned diamond synthesizing preparation method of compound block for transmitting pressure, the granularity of dolomite described in step a is
60~100 mesh, purity > 95% of dolomite；The granularity of the sodium chloride is 60 mesh with thin, sodium chloride purity >=98%；It is described
Granularity is 60 mesh when being sieved；Pressure control is 20~25MPa, the first internal lining pipe of gained in the moulding press pressing process
With a thickness of 2~5mm.
According to the above-mentioned diamond synthesizing preparation method of compound block for transmitting pressure, purity >=95% of magnesia in step b,
Granularity is 80~120 mesh；Purity >=95% of zirconium oxide, granularity are 80 mesh with thin；Granularity is 60 when being sieved in step b
Mesh；In the moulding press pressing process pressure control be 25~30MPa, the second internal lining pipe of gained with a thickness of 2~4mm.
According to the above-mentioned diamond synthesizing preparation method of compound block for transmitting pressure, in step c pyrophillite coarse fodder granularity be 2~
6 mesh, middle material granularity are 6~12 mesh, and fines granularity is 12~50 mesh；In the moulding press pressing process pressure be 25~
30Mpa, gained pyrophillite matrix with a thickness of 3~5mm.
According to the above-mentioned diamond synthesizing preparation method of compound block for transmitting pressure, pressure during compound suppressing in step d
Control is 30~35Mpa；Temperature is 280~300 DEG C when pyrophillite described in step e toasts, and baking time is 12~18h.
Positive beneficial effect of the invention:
1, the compound block for transmitting pressure of diamond synthesizing of the present invention, design use multi-layer heat preserving structure, increase insulating layer, can be big
Heat loss is reduced to amplitude, synthetic cavity both ends and ambient temperature uniformity significantly improve, diamond synthesizing crystal form consistency
Up to 85% or more, to meet efficiently synthesizing for diamond.
2, during the present invention prepares the compound block for transmitting pressure of diamond synthesizing, using the side being separately formed with compound suppressing
Method further improves its service performance, and through the compound of the method for the present invention compacting to improve the compact density of each attachment
Block liner dimensional uniformity is good, avoids problem easily-deformable when the compacting of conventional drawing method internal lining pipe.
3, the present invention further reduces heat loss using compound bushing pipe, saves power consumption, and monolithic synthesizes power
15% or more decline, while top hammer end region temperature is reduced, top hammer consumption is reduced, cost is saved.
4, the compound block for transmitting pressure of product of the present invention diamond synthesizing, thermal insulation property is good, can meet synthesis growth for a long time,
To meet the high-quality stable synthesis of different grain size diamond.
5, product of the present invention diamond synthesizing is simple and convenient to operate with the structure of compound block for transmitting pressure, is easy to suppress, convenient for group
Dress, novel design are rationally.
Detailed description of the invention
The structural profile illustration of the compound block for transmitting pressure of Fig. 1 diamond synthesizing of the present invention；
In Fig. 1: 1 is the first internal lining pipe, and 2 be the second internal lining pipe, and 3 be pyrophillite matrix.
The compound block for transmitting pressure structure top view of Fig. 2 diamond synthesizing of the present invention；
In Fig. 2: 1 is the first internal lining pipe, and 2 be the second internal lining pipe, and 3 be pyrophillite matrix.
The sectional view of the compound block for transmitting pressure middle period cured stone substrate of Fig. 3 present invention；
In Fig. 3: 3 be pyrophillite matrix, and 4 be groove, and 5 be step.
Specific embodiment
The present invention is further explained with reference to embodiments, but is not intended to limit the range of technical solution of the present invention protection.
In following embodiment: the granularity of the dolomite used is 60~100 mesh, purity > 95% of dolomite；Sodium chloride
Granularity is 60 mesh with thin, sodium chloride purity >=98%；Purity >=95% of magnesia, granularity are 80~120 mesh；Zirconium oxide
Purity >=95%, granularity are 80 mesh with thin；Pyrophillite coarse fodder granularity is 2~6 mesh, middle material granularity is 6~12 mesh, fines granularity is
12~50 mesh.
Embodiment 1:
Referring to attached drawing 1, attached drawing 2 and attached drawing 3, the compound block for transmitting pressure of diamond synthesizing of the present invention, the compound block for transmitting pressure packet
The first internal lining pipe 1, the second internal lining pipe 2 and pyrophillite matrix 3 are included, second internal lining pipe 2 is located at the inside of compound block for transmitting pressure, leaf
Cured stone substrate 3 is located at the outside of compound block for transmitting pressure；First internal lining pipe 1 is arranged between the second internal lining pipe 2 and pyrophillite matrix 3；
The height of first internal lining pipe 1 is equal with the height of the second internal lining pipe 2；The pyrophillite matrix 3 is the groove of square-outside and round-inside
Structure, the height of the groove 4 is consistent with the height of the first internal lining pipe 1 and the second internal lining pipe 2, at pyrophillite groove of substrate 4
Equipped with step 5；The cavity diameter of the pyrophillite matrix is consistent with 1 outer diameter of the first internal lining pipe, at pyrophillite matrix step 5
Diameter of bore is consistent with 2 internal diameter of the second internal lining pipe.
Embodiment 2: it is substantially the same manner as Example 1, the difference is that:
First internal lining pipe with a thickness of 3mm, the second internal lining pipe with a thickness of 3mm, pyrophillite matrix with a thickness of
4mm；Height at the pyrophillite matrix step is 12mm.
Embodiment 3: it is substantially the same manner as Example 1, the difference is that:
First internal lining pipe with a thickness of 5mm, the second internal lining pipe with a thickness of 4mm, pyrophillite matrix with a thickness of
5mm；Height at the pyrophillite matrix step is 15mm.
Embodiment 4: it is substantially the same manner as Example 1, the difference is that:
First internal lining pipe with a thickness of 4mm, the second internal lining pipe with a thickness of 4mm, pyrophillite matrix with a thickness of
5mm；Height at the pyrophillite matrix step is 10mm.
Embodiment 5:
The preparation method of the compound block for transmitting pressure of 1 diamond synthesizing of the embodiment of the present invention, detailed step are as follows:
A, the preparation of the first internal lining pipe:
Indicated with parts by weight, first by 0.4 part of 80 parts of raw material dolomite, 15 parts of sodium chloride, 2 parts of ethylene glycol and mica powder into
Row mixing, is added 6 parts of glass cement after mixing and is stirred, be sieved after mixing evenly, and granularity is 60 mesh when sieving；Most
Mixture after sieving is pressed into cylindric i.e. the first internal lining pipe (pressure control in moulding press pressing process by moulding press afterwards
It is made as 23MPa)；
B, the preparation of the second internal lining pipe:
Indicated with parts by weight, by 0.6 part of 70 parts of raw material magnesia, 28 parts of zirconium oxide, 1.5 parts of ethylene glycol and mica powder into
Row mixing, is added 4 parts of glass cement after mixing and is stirred, be sieved after mixing evenly, and granularity is 60 mesh when sieving；Most
Mixture after sieving is pressed into cylindric i.e. the second internal lining pipe (pressure control in moulding press pressing process by moulding press afterwards
It is made as 28MPa)；
C, the preparation of pyrophillite matrix:
Raw material pyrophyllite powder is prepared according to three kinds of granularities of carse, medium and small material first, between carse, medium and small material three
Weight ratio is 3:5:2, and glass cement is added after preparation and is stirred, the additional amount of glass cement accounts for three kinds of granularity pyrophyllite powder gross weights
The 6.5% of amount, ferments after mixing evenly, fermentation time 12h, and fermentation temperature is 25~30 DEG C, finally will be after fermentation
Material is pressed into the pyrophillite matrix of square-outside and round-inside through moulding press (pressure control is 28MPa in moulding press pressing process)；
D, the compound suppressing of pyrophyllite block:
The first internal lining pipe, the second internal lining pipe and the pyrophillite matrix that above step is prepared are according to institute in embodiment 1
The structural relation for stating compound block for transmitting pressure is combined, and is then placed in moulding press and is carried out secondary compound suppressing (compound suppressing
Pressure control is 32MPa in journey), form compound block for transmitting pressure；
E, pyrophyllite block is handled:
The compound block for transmitting pressure that step d is suppressed carries out flat stone mill, and removal end face suppresses overlap, obtains answering for size qualification
Close block for transmitting pressure；Then composite block is subjected to a point weight, baking (baking temperature is 290 DEG C, baking time 16h), after the completion of baking
Product diamond synthesizing is obtained with compound block for transmitting pressure.
Embodiment 6:
The preparation method of the compound block for transmitting pressure of 2 diamond synthesizing of the embodiment of the present invention, detailed step are as follows:
A, the preparation of the first internal lining pipe:
Indicated with parts by weight, first by 0.2 part of 70 parts of raw material dolomite, 10 parts of sodium chloride, 1 part of ethylene glycol and mica powder into
Row mixing, is added 5 parts of glass cement after mixing and is stirred, be sieved after mixing evenly, and granularity is 60 mesh when sieving；Most
Mixture after sieving is pressed into cylindric i.e. the first internal lining pipe (pressure control in moulding press pressing process by moulding press afterwards
It is made as 20MPa)；
B, the preparation of the second internal lining pipe:
It is indicated with parts by weight, by 60 parts of raw material magnesia, 15 parts of zirconium oxide, 1 part of ethylene glycol and 0.5 part of mica powder progress
Mixing is added 3 parts of glass cement after mixing and is stirred, is sieved after mixing evenly, and granularity is 60 mesh when sieving；Finally
Mixture after sieving is pressed into (the pressure control in moulding press pressing process of cylindric i.e. the second internal lining pipe by moulding press
For 25MPa)；
C, the preparation of pyrophillite matrix:
Raw material pyrophyllite powder is prepared according to three kinds of granularities of carse, medium and small material first, between carse, medium and small material three
Weight ratio is 3:5:2, and glass cement is added after preparation and is stirred, the additional amount of glass cement accounts for three kinds of granularity pyrophyllite powder gross weights
The 6% of amount, ferments after mixing evenly, fermentation time 12h, and fermentation temperature is 25~30 DEG C, finally by the object after fermentation
Material is pressed into the pyrophillite matrix of square-outside and round-inside through moulding press (pressure control is 25MPa in moulding press pressing process)；
D, the compound suppressing of pyrophyllite block:
The first internal lining pipe, the second internal lining pipe and the pyrophillite matrix that above step is prepared are according to institute in embodiment 2
The structural relation for stating compound block for transmitting pressure is combined, and is then placed in moulding press and is carried out secondary compound suppressing (compound suppressing
Pressure control is 30MPa in journey), form compound block for transmitting pressure；
E, pyrophyllite block is handled:
The compound block for transmitting pressure that step d is suppressed carries out flat stone mill, and removal end face suppresses overlap, obtains answering for size qualification
Close block for transmitting pressure；Then composite block is subjected to a point weight, baking (baking temperature is 280 DEG C, baking time 18h), after the completion of baking
Product diamond synthesizing is obtained with compound block for transmitting pressure.
Embodiment 7:
The preparation method of the compound block for transmitting pressure of 3 diamond synthesizing of the embodiment of the present invention, detailed step are as follows:
A, the preparation of the first internal lining pipe:
Indicated with parts by weight, first by 0.5 part of 90 parts of raw material dolomite, 20 parts of sodium chloride, 3 parts of ethylene glycol and mica powder into
Row mixing, is added 7 parts of glass cement after mixing and is stirred, be sieved after mixing evenly, and granularity is 60 mesh when sieving；Most
Mixture after sieving is pressed into cylindric i.e. the first internal lining pipe (pressure control in moulding press pressing process by moulding press afterwards
It is made as 25MPa)；
B, the preparation of the second internal lining pipe:
It is indicated with parts by weight, by 80 parts of raw material magnesia, 40 parts of zirconium oxide, 2 parts of ethylene glycol and 0.8 part of mica powder progress
Mixing is added 5 parts of glass cement after mixing and is stirred, is sieved after mixing evenly, and granularity is 60 mesh when sieving；Finally
Mixture after sieving is pressed into (the pressure control in moulding press pressing process of cylindric i.e. the second internal lining pipe by moulding press
For 30MPa)；
C, the preparation of pyrophillite matrix:
Raw material pyrophyllite powder is prepared according to three kinds of granularities of carse, medium and small material first, between carse, medium and small material three
Weight ratio is 3:5:2, and glass cement is added after preparation and is stirred, the additional amount of glass cement accounts for three kinds of granularity pyrophyllite powder gross weights
The 7% of amount, ferments after mixing evenly, fermentation time 12h, and fermentation temperature is 25~30 DEG C, finally by the object after fermentation
Material is pressed into the pyrophillite matrix of square-outside and round-inside through moulding press (pressure control is 30MPa in moulding press pressing process)；
D, the compound suppressing of pyrophyllite block:
The first internal lining pipe, the second internal lining pipe and the pyrophillite matrix that above step is prepared are according to institute in embodiment 3
The compound block for transmitting pressure structural relation stated is combined, and is then placed in moulding press and is carried out secondary compound suppressing (compound suppressing
Pressure control is 35MPa in journey), form compound block for transmitting pressure；
E, pyrophyllite block is handled:
The compound block for transmitting pressure that step d is suppressed carries out flat stone mill, and removal end face suppresses overlap, obtains answering for size qualification
Close block for transmitting pressure；Then composite block is subjected to a point weight, baking (baking temperature is 300 DEG C, baking time 12h), after the completion of baking
Product diamond synthesizing is obtained with compound block for transmitting pressure.
Embodiment 8:
The preparation method of the compound block for transmitting pressure of 4 diamond synthesizing of the embodiment of the present invention, detailed step are as follows:
A, the preparation of the first internal lining pipe:
It is indicated with parts by weight, first by 85 parts of raw material dolomite, 18 parts of sodium chloride, 2.5 parts of ethylene glycol and 0.3 part of mica powder
It is mixed, is added 6.5 parts of glass cement after mixing and is stirred, be sieved after mixing evenly, granularity is 60 when sieving
Mesh；Mixture after sieving is finally pressed into cylindric i.e. the first internal lining pipe (in moulding press pressing process by moulding press
Pressure control is 22MPa)；
B, the preparation of the second internal lining pipe:
Indicated with parts by weight, by 0.7 part of 75 parts of raw material magnesia, 35 parts of zirconium oxide, 1.8 parts of ethylene glycol and mica powder into
Row mixing, is added 4.5 parts of glass cement after mixing and is stirred, be sieved after mixing evenly, and granularity is 60 mesh when sieving；
Mixture after sieving is finally pressed into cylindric i.e. the second internal lining pipe (pressure in moulding press pressing process by moulding press
Control is 26MPa)；
C, the preparation of pyrophillite matrix:
Raw material pyrophyllite powder is prepared according to three kinds of granularities of carse, medium and small material first, between carse, medium and small material three
Weight ratio is 3:5:2, and glass cement is added after preparation and is stirred, the additional amount of glass cement accounts for three kinds of granularity pyrophyllite powder gross weights
The 6.0% of amount, ferments after mixing evenly, fermentation time 12h, and fermentation temperature is 25~30 DEG C, finally will be after fermentation
Material is pressed into the pyrophillite matrix of square-outside and round-inside through moulding press (pressure control is 26MPa in moulding press pressing process)；
D, the compound suppressing of pyrophyllite block:
The first internal lining pipe, the second internal lining pipe and the pyrophillite matrix that above step is prepared are according to institute in embodiment 4
The compound block for transmitting pressure structural relation stated is combined, and is then placed in moulding press and is carried out secondary compound suppressing (compound suppressing
Pressure control is 33MPa in journey), form compound block for transmitting pressure；
E, pyrophyllite block is handled:
The compound block for transmitting pressure that step d is suppressed carries out flat stone mill, and removal end face suppresses overlap, obtains answering for size qualification
Close block for transmitting pressure；Then composite block is subjected to a point weight, baking (baking temperature is 285 DEG C, baking time 16h), after the completion of baking
Product diamond synthesizing is obtained with compound block for transmitting pressure.
Claims (10)
1. a kind of compound block for transmitting pressure of diamond synthesizing, it is characterised in that: the compound block for transmitting pressure includes the first internal lining pipe, second
Internal lining pipe and pyrophillite matrix, second internal lining pipe are located at the inside of compound block for transmitting pressure, and pyrophillite matrix is located at compound pressure transmission
The outside of block；First internal lining pipe is arranged between the second internal lining pipe and pyrophillite matrix；The height of first internal lining pipe and the
The height of two internal lining pipes is equal.
2. the compound block for transmitting pressure of diamond synthesizing according to claim 1, it is characterised in that: the pyrophillite matrix is outer
The groove structure of square inner circle, the height of the groove is consistent with the height of the first internal lining pipe and the second internal lining pipe, pyrophillite base
Body groove is equipped with step.
3. the compound block for transmitting pressure of diamond synthesizing according to claim 2, it is characterised in that: the chamber of the pyrophillite matrix
Body diameter is consistent with the first liner pipe outside diameter, and diameter of bore is consistent with the second liner bore at pyrophillite matrix step.
4. the compound block for transmitting pressure of diamond synthesizing according to claim 2, it is characterised in that: the pyrophillite matrix step
The height at place is 10~15mm.
5. the compound block for transmitting pressure of diamond synthesizing according to claim 1, it is characterised in that: the thickness of first internal lining pipe
Degree is 2~5mm, the second internal lining pipe with a thickness of 2~4mm, pyrophillite matrix with a thickness of 3~5mm.
6. a kind of diamond synthesizing preparation method of compound block for transmitting pressure, which is characterized in that the preparation method includes following step
It is rapid:
A, the preparation of the first internal lining pipe:
It is indicated with parts by weight, first by 70~90 parts of raw material dolomite, 10~20 parts of sodium chloride, 1~3 part of ethylene glycol and mica powder
0.2~0.5 part is mixed, and is added 5~7 parts of glass cement after mixing and is stirred, is sieved after mixing evenly, finally
Mixture after sieving is pressed into cylindric i.e. the first internal lining pipe by moulding press；
B, the preparation of the second internal lining pipe:
It is indicated with parts by weight, by 60~80 parts of raw material magnesia, 10~40 parts of zirconium oxide, 1~2 part of ethylene glycol and mica powder 0.5
~0.8 part is mixed, and is added 3~5 parts of glass cement after mixing and is stirred, is sieved after mixing evenly, finally will
Mixture is pressed into cylindric i.e. the second internal lining pipe by moulding press after sieving；
C, the preparation of pyrophillite matrix:
Raw material pyrophyllite powder is prepared according to three kinds of granularities of carse, medium and small material first, the weight between carse, medium and small material three
Ratio is 3:5:2, and glass cement is added after preparation and is stirred, the additional amount of glass cement accounts for three kinds of granularity pyrophyllite powder total weights
6~7%, it ferments after mixing evenly, fermentation time 12h, fermentation temperature is 25~30 DEG C, finally by the material after fermentation
The pyrophillite matrix of square-outside and round-inside is pressed into through moulding press；
D, the compound suppressing of pyrophyllite block:
The first internal lining pipe, the second internal lining pipe and the pyrophillite matrix that above step is prepared are according to described in claim 1
Structural relation be combined, be then placed in moulding press and carry out secondary compound suppressing, form compound block for transmitting pressure；
E, pyrophyllite block is handled:
The compound block for transmitting pressure that step d is suppressed carries out flat stone mill, and removal end face suppresses overlap, obtains the compound biography of size qualification
Briquetting；Then composite block is subjected to a point weight, baking, obtains product diamond synthesizing with compound block for transmitting pressure after the completion of baking.
7. the diamond synthesizing according to claim 6 preparation method of compound block for transmitting pressure, it is characterised in that: in step a
The granularity of the dolomite is 60~100 mesh, purity > 95% of dolomite；The granularity of the sodium chloride is 60 mesh with thin, chlorination
Sodium purity >=98%；Granularity when being sieved is 60 mesh；In the moulding press pressing process pressure control for 20~
25MPa, the first internal lining pipe of gained with a thickness of 2~5mm.
8. the diamond synthesizing according to claim 6 preparation method of compound block for transmitting pressure, it is characterised in that: in step b
Purity >=95% of magnesia, granularity are 80~120 mesh；Purity >=95% of zirconium oxide, granularity are 80 mesh with thin；In step b
Granularity is 60 mesh when being sieved；Pressure control is 25~30MPa, the second internal lining pipe of gained in the moulding press pressing process
With a thickness of 2~4mm.
9. the diamond synthesizing according to claim 6 preparation method of compound block for transmitting pressure, it is characterised in that: in step c
Pyrophillite coarse fodder granularity is 2~6 mesh, and middle material granularity is 6~12 mesh, and fines granularity is 12~50 mesh；The moulding press compacting
In the process pressure be 25~30Mpa, gained pyrophillite matrix with a thickness of 3~5mm.
10. the diamond synthesizing according to claim 6 preparation method of compound block for transmitting pressure, it is characterised in that: in step d
Pressure control is 30~35Mpa during compound suppressing；Temperature is 280~300 DEG C when pyrophillite described in step e toasts, and is dried
The roasting time is 12~18h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910343307.4A CN109966994A (en) | 2019-04-26 | 2019-04-26 | A kind of diamond synthesizing compound block for transmitting pressure and preparation method thereof |
Applications Claiming Priority (1)
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| CN114455930A (en) * | 2022-01-11 | 2022-05-10 | 郑州中南杰特超硬材料有限公司 | Preparation method of dolomite composite material |
| CN114888926A (en) * | 2022-03-30 | 2022-08-12 | 郑州中南杰特超硬材料有限公司 | Novel sealing material pressing device and process for synthetic diamond |
| CN115947612A (en) * | 2022-12-09 | 2023-04-11 | 秦皇岛琨煜晶材科技有限公司 | Pressure transmission medium for high temperature and high pressure |
| CN115974532A (en) * | 2022-12-02 | 2023-04-18 | 富耐克超硬材料股份有限公司 | Heat-preservation pressure-transmitting material for synthesizing polycrystalline diamond compact |
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| CN115974532B (en) * | 2022-12-02 | 2024-03-01 | 富耐克超硬材料股份有限公司 | Thermal insulation pressure transmission material for synthetic polycrystalline diamond compact |
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