CN110271112A - Superfine-hole underwater granulation die head assembly and production process thereof - Google Patents
Superfine-hole underwater granulation die head assembly and production process thereof Download PDFInfo
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- CN110271112A CN110271112A CN201910659567.2A CN201910659567A CN110271112A CN 110271112 A CN110271112 A CN 110271112A CN 201910659567 A CN201910659567 A CN 201910659567A CN 110271112 A CN110271112 A CN 110271112A
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- 238000005469 granulation Methods 0.000 title claims abstract description 42
- 230000003179 granulation Effects 0.000 title claims abstract description 42
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 239000000919 ceramic Substances 0.000 claims abstract description 52
- 239000011159 matrix material Substances 0.000 claims abstract description 43
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 36
- 239000000956 alloy Substances 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000003292 glue Substances 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 10
- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 7
- 239000010962 carbon steel Substances 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 238000005453 pelletization Methods 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 24
- 238000000227 grinding Methods 0.000 claims description 12
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 238000001746 injection moulding Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000007767 bonding agent Substances 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 238000005238 degreasing Methods 0.000 claims description 3
- 238000005242 forging Methods 0.000 claims description 3
- 210000001161 mammalian embryo Anatomy 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 229910052727 yttrium Inorganic materials 0.000 claims description 3
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 229910052573 porcelain Inorganic materials 0.000 claims 1
- 238000005476 soldering Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000005219 brazing Methods 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000000047 product Substances 0.000 description 6
- 229910010293 ceramic material Inorganic materials 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 239000005457 ice water Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000011344 liquid material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002498 deadly effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/82—Heating or cooling
- B29B7/826—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/582—Component parts, details or accessories; Auxiliary operations for discharging, e.g. doors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
- B29B9/065—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion under-water, e.g. underwater pelletizers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/3001—Extrusion nozzles or dies characterised by the material or their manufacturing process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/3001—Extrusion nozzles or dies characterised by the material or their manufacturing process
- B29C48/3003—Materials, coating or lining therefor
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses an ultra-fine hole underwater granulation die head assembly and a production process thereof, which can solve the technical problems of uneven discharging, frozen holes, die head extrusion damage and the like of the existing underwater granulation die head. The structure of the superfine hole underwater granulation die head assembly comprises a die head outer ring, a granulation template, a conical distributor, a water-stop plate and bolts, wherein the die head outer ring is hermetically sleeved on the outer side of the granulation template, the conical distributor is arranged on the side surface of the middle part of the granulation template, the water-stop plate is arranged on the side surface of the granulation template far away from the conical distributor, the conical distributor and the granulation template are fixed through the bolts, the granulation template consists of a template matrix, an alloy granulation belt and a ceramic nozzle, the template matrix is a high-chromium carbon steel template matrix, the alloy granulation belt is welded on the template matrix through an alloy brazing process, the ceramic nozzle is embedded in the template matrix through coating high-strength metal glue, the ceramic nozzle and the template matrix are in clearance fit, and a plurality of superfine holes are uniformly distributed on the ceramic.
Description
Technical field
The present invention relates to a kind of ultra-fine Kong Shuizhong granulating head component and its production technologies.
Background technique
Prilling in ultrafine dust water, due to high insulation requirement, existing alloy system is granulated mould on the market at present
Plate is only able to achieve operation and requires extremely harsh, the very ideal a small number of occasions of use condition.The U.S., Germany, Switzerland almost ridge
Having broken, this segments market, and what they used is also alloy and ceramic composite granulating head, but they are using ceramics
As thermal insulation board, higher alloy granulation band for one layer of thermal conductivity ceramics relatively, heat insulation are still except thermal insulation board
Be not still it is very ideal, still there are many heats to be taken away by water flow, by perforation die head outer ring conduction oil, protected
Temperature, this has resulted in higher energy consumption, and conduction oil supplement energy still needs master plate to transmit this and needs regular hour and heat
Loss, moreover, because the coefficient of expansion of material used in the thermal insulation board and pelletizing template of this structure has differences, and is actually granulated
Under environment, by lasting big flow water cooling, even ice water environment, this results in not can guarantee on thermal insulation board and pelletizing template die head
The concentricity of discharge hole, (aperture in especially ultra-fine hole is less than 0.5mm to this deviation in prilling in ultrafine dust water
When), be it is very deadly, be easy to cause discharging uneven, or even freeze hole phenomenon, cause to shut down, it is also possible to directly result in die head
Squeeze bad phenomena such as.
Summary of the invention
The first purpose of this invention is the presence of the above problem in view of the prior art, proposes a kind of ultra-fine Kong Shuizhong and makes
Grain die head component, in the water granulating head component can it is uneven to avoid discharging, freeze hole and die head squeeze bad phenomena such as, substantially increase
Production cost is low while working efficiency.
The first purpose of this invention can be realized by the following technical scheme: a kind of ultra-fine Kong Shuizhong granulating head group
Part, structure include die head outer ring, pelletizing template, tapered material distributor, water-stop sheet and bolt, and die head outer ring sealing shroud is mounted in
On the outside of pelletizing template, the tapered material distributor is fixed on the side in the middle part of pelletizing template, the water-stop sheet setting
On one side of the pelletizing template far from the tapered material distributor, lead between the tapered material distributor, water-stop sheet and pelletizing template
It crosses bolt to be fixed, the pelletizing template is made of template matrix, alloy granulation band and ceramic nozzle, and the template matrix is
High chrome-carbon steel template matrix, the alloy granulation band are welded on template matrix by alloy brazed technique, the ceramic nozzle
It is embedded in template matrix by coating high strength metal glue, and is therebetween clearance fit, on the ceramic nozzle
It is furnished with several ultra-fine holes.
Using the above structure, ceramic nozzle is manufactured using the best ceramic material of thermal insulation properties, allows to maximum
Influence of deformation of the material because of generation of expanding with heat and contract with cold to granulation size is reduced to limit, while can completely avoid traditional
The case where multiple-piece heat insulation type die head leads to joining place there are size differences because of unlike material expansion coefficient difference.
It is offered on the template matrix convenient for the step structure of fixed ceramic nozzle.
Using the above structure, ceramic nozzle and template matrix use step+clearance fit, and dedicated binder of arranging in pairs or groups carries out
Sealing, structure is simple, easy for installation, and does not have an impact to discharge size.
The ceramic nozzle uses thermal conductivity for 1000 DEG C, 2.09W/(m.k) yttrium stable type ceramics.
Using which, nozzle is manufactured using the best ceramic material of thermal insulation properties, is allowed to the maximum extent
Reduce material because generation of expanding with heat and contract with cold deformation to be granulated size influence, i.e., ice water be granulated environment in, ceramic nozzle according to
It can so be kept the temperature by the temperature of material itself, in addition, ceramics are extremely low with the affinity of plastics, it is ensured that ultra-fine grain
It will not be sticked on pelletizing template when cut-off, melting liquid material is allowed preferably to realize that pelletizing produces in water.
The high duty metal glue is aluminium alloy glue.
Using the above structure, i.e., ceramic linear expansion coefficient is close to alloy, therefore aluminium alloy glue can play well
Fixed and sealing function.
Second object of the present invention can be realized by the following technical scheme: a kind of ultra-fine Kong Shuizhong granulating head component
Production technology, include the following steps:
1), the manufacture of template matrix: being manufactured using high tenacity forging containing chrome-carbon steel, and it is spare to reserve grinding allowance；
2), the manufacture of alloy granulation band: using cobalt or nickel that thick embryo is made by Shooting Technique as the wolfram steel powder of bonding agent, warp
It is spare that alloy granulation band is made in oversintering；
3), by alloy granulation band made from step 2 as clearance fit be embedded into step 1) made from template matrix, addition
Solder is then placed in and is sintered welding in vacuum drying oven to get the weldment of template matrix and alloy granulation band；
4), the weldment of template matrix made from step 3) and alloy granulation band finish spare；
5), the manufacture of ceramic nozzle: ceramic nozzle moulding is obtained by injection molding, is then carried out degreasing, is sintered, obtains
Ultra-fine hole ceramic nozzle；
6) ultra-fine hole ceramic nozzle made from step 5), is inlaid into the template matrix after finishing using high duty metal glue
In the weldment of alloy granulation band, and stand 6 hours or more；
7), using surface grinding machine and skive to the pelletizing template after bonding carry out last time planar accurate grinding to get at
Product.
Using the above structure, ceramic nozzle is produced using powder injection molding technique, and ultra-fine hole has been formed in injection phase, after
It is continuous be combined agent removal again, sintering, grinding can be obtained finished product, be not necessarily to subsequent punching, i.e., after thoroughly avoiding traditional structure
Phase processes this extremely difficult process of ultra-fine hole, can facilitate its processing and fabricating, production cost is low.
By the above-mentioned description to structure of the invention it is found that compared to the prior art, the present invention has the advantage that
1, nozzle is the part the most key to granulation size control, using the best ceramic material of thermal insulation properties, maximum limit
Reduce to degree influence of deformation of the material because of generation of expanding with heat and contract with cold to size is granulated.
2, using ceramic nozzle structure of the invention, traditional multiple-piece heat insulation type die head has been can completely avoid because of difference
The case where material expansion difference leads to joining place there are size differences.
3, ceramic nozzle and template matrix use step+clearance fit, and dedicated binder of arranging in pairs or groups is sealed, structure letter
It is single, it is easy for installation, and discharge size is not had an impact.
4, ceramic nozzle is produced using powder injection molding technique, and ultra-fine hole has been formed in injection phase, subsequent to be tied again
Mixture removal, sintering, grinding can be obtained finished product, are not necessarily to subsequent punching, i.e., it is ultra-fine thoroughly to avoid traditional structure post-production
This extremely difficult process of hole, can facilitate its processing and fabricating, production cost is low.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the main view of this ultra-fine Kong Shuizhong granulating head component；
Fig. 2 is the left view of this ultra-fine Kong Shuizhong granulating head component；
Fig. 3 is the enlarged drawing in Fig. 1 at B；
Fig. 4 is the enlarged drawing in Fig. 2 at C.
In figure: 1. die head outer ring, 2. pelletizing template, 21. template matrix 21a. step structure, 22. alloy granulation band 23.
4. water-stop sheet of ultra-fine 3. tapered material distributor of hole of ceramic nozzle 23a., 5. bolt.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature of " first ", " second " etc. is defined as a result,
It can explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " more
It is a " it is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of ultra-fine Kong Shuizhong granulating head component, structure include die head outer ring
1, pelletizing template 2, tapered material distributor 3, water-stop sheet 4 and bolt 5,1 sealing shroud of die head outer ring are mounted on the outside of pelletizing template 2,
Tapered material distributor 3 is fixed on the side at 2 middle part of pelletizing template, is stated water-stop sheet 4 and is arranged in pelletizing template 2 far from the cone
It on the one side of shape tripper 3, is fixed, is granulated by bolt 5 between tapered material distributor 3, water-stop sheet 4 and pelletizing template 2
Template 2 is made of template matrix 21, alloy granulation band 22 and ceramic nozzle 23, and template matrix 21 is high chrome-carbon steel template matrix,
Alloy granulation band 22 is welded on template matrix 21 by alloy brazed technique, and ceramic nozzle 23 passes through coating high strength metal-to-metal adhesive
Water is embedded in template matrix 21, and is therebetween clearance fit, is evenly equipped with several ultra-fine hole 23a on ceramic nozzle 23；It adopts
With the structure, ceramic nozzle is manufactured using the best ceramic material of thermal insulation properties, allows to reduce to the maximum extent
Material while can completely avoid traditional multiple-piece heat insulation type because of influence of the deformation to size is granulated for generation of expanding with heat and contract with cold
The case where die head leads to joining place there are size differences because of unlike material expansion coefficient difference.
As shown in figures 1 and 3, it is offered on template matrix 21 convenient for the step structure 21a of fixed ceramic nozzle 23；Using
Which, ceramic nozzle and template matrix use step+clearance fit, and dedicated binder of arranging in pairs or groups is sealed, and structure is simple,
It is easy for installation, and discharge size is not had an impact.
As shown in Figure 1, Figure 2 and Fig. 3 ceramic nozzle 23 uses thermal conductivity for 1000 DEG C, 2.09W/(m.k) yttrium stable type it is ceramic；
Using which, nozzle is manufactured using the best ceramic material of thermal insulation properties, allows to reduce material to the maximum extent
Material is because of influence of the deformation to size is granulated for generation of expanding with heat and contract with cold, i.e., in ice water granulation environment, ceramic nozzle still can be according to
Temperature by material itself is kept the temperature, in addition, ceramics are extremely low with the affinity of plastics, it is ensured that ultra-fine grain is being cut off
When will not stick on pelletizing template, allow melting liquid material preferably to realize in water that pelletizing produces.
High duty metal glue is aluminium alloy glue, and in the present embodiment, aluminium alloy glue is showing of can buying in the market
There is product；Using the above structure, i.e., ceramic linear expansion coefficient is close to alloy, therefore aluminium alloy glue can play well admittedly
Fixed and sealing function.
Second object of the present invention can be realized by the following technical scheme:, a kind of ultra-fine Kong Shuizhong granulating head group
The production technology of part, includes the following steps:
1), the manufacture of template matrix: being manufactured using high tenacity forging containing chrome-carbon steel, and it is spare to reserve grinding allowance；
2), the manufacture of alloy granulation band: using cobalt or nickel that thick embryo is made by Shooting Technique as the wolfram steel powder of bonding agent, warp
It is spare that alloy granulation band is made in oversintering；
3), by alloy granulation band made from step 2 as clearance fit be embedded into step 1) made from template matrix, addition
Solder is then placed in and is sintered welding in vacuum drying oven to get the weldment of template matrix and alloy granulation band；
4), the weldment of template matrix made from step 3) and alloy granulation band finish spare；
5), the manufacture of ceramic nozzle: ceramic nozzle moulding is obtained by injection molding, is then carried out degreasing, is sintered, obtains
Ultra-fine hole ceramic nozzle；
6) ultra-fine hole ceramic nozzle made from step 5), is inlaid into the template matrix after finishing using high duty metal glue
In the weldment of alloy granulation band, and stand 6 hours or more；
7), using surface grinding machine and skive to the pelletizing template after bonding carry out last time planar accurate grinding to get at
Product.
Using the technique, ceramic nozzle is produced using powder injection molding technique, and ultra-fine hole has been formed in injection phase, subsequent
Be combined again agent removal, sintering, grinding can be obtained finished product, be not necessarily to subsequent punching, i.e., thoroughly avoid the traditional structure later period
This extremely difficult process of ultra-fine hole is processed, its processing and fabricating can be facilitated, production cost is low.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (5)
1. a kind of ultra-fine Kong Shuizhong granulating head component, it is characterised in that: its structure includes die head outer ring (1), pelletizing template
(2), tapered material distributor (3), water-stop sheet (4) and bolt (5), die head outer ring (1) sealing shroud is mounted in the outer of pelletizing template (2)
On side, the tapered material distributor (3) is fixed on the side in the middle part of pelletizing template (2), and water-stop sheet (4) setting is being made
On the one side of grain template (2) separate the tapered material distributor (3), the tapered material distributor (3), water-stop sheet (4) and granulation mould
It is fixed between plate (2) by bolt (5), the pelletizing template (2) is by template matrix (21), alloy granulation band (22) and pottery
Porcelain nozzle (23) composition, the template matrix (21) are high chrome-carbon steel template matrix, and the alloy granulation band (22) passes through alloy
Soldering processes are welded on template matrix (21), and the ceramic nozzle (23) is embedded in template by coating high strength metal glue
In matrix (21), and therebetween it is clearance fit, is evenly equipped with several ultra-fine holes (23a) on the ceramic nozzle (23).
2. a kind of ultra-fine Kong Shuizhong granulating head component according to claim 1, it is characterised in that: the template matrix
(21) it is offered on convenient for the step structure (21a) of fixed ceramic nozzle (23).
3. a kind of ultra-fine Kong Shuizhong granulating head component according to claim 1, it is characterised in that: the ceramic nozzle
(23) use thermal conductivity for 1000 DEG C, 2.09W/(m.k) yttrium stable type ceramics.
4. a kind of ultra-fine Kong Shuizhong granulating head component according to claim 1, it is characterised in that: the high duty metal
Glue is aluminium alloy glue.
5. a kind of production technology of ultra-fine Kong Shuizhong granulating head component according to claim 1, which is characterized in that including
Following steps:
1), the manufacture of template matrix: being manufactured using high tenacity forging containing chrome-carbon steel, and it is spare to reserve grinding allowance；
2), the manufacture of alloy granulation band: using cobalt or nickel that thick embryo is made by Shooting Technique as the wolfram steel powder of bonding agent, warp
It is spare that alloy granulation band is made in oversintering；
3), by alloy granulation band made from step 2 as clearance fit be embedded into step 1) made from template matrix, addition
Solder is then placed in and is sintered welding in vacuum drying oven to get the weldment of template matrix and alloy granulation band；
4), the weldment of template matrix made from step 3) and alloy granulation band finish spare；
5), the manufacture of ceramic nozzle: ceramic nozzle moulding is obtained by injection molding, is then carried out degreasing, is sintered, obtains
Ultra-fine hole ceramic nozzle；
6) ultra-fine hole ceramic nozzle made from step 5), is inlaid into the template matrix after finishing using high duty metal glue
In the weldment of alloy granulation band, and stand 6 hours or more；
7), using surface grinding machine and skive to the pelletizing template after bonding carry out last time planar accurate grinding to get at
Product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910659567.2A CN110271112B (en) | 2019-07-22 | 2019-07-22 | Superfine pore underwater granulation die head assembly and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910659567.2A CN110271112B (en) | 2019-07-22 | 2019-07-22 | Superfine pore underwater granulation die head assembly and production process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110271112A true CN110271112A (en) | 2019-09-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112078114A (en) * | 2020-08-26 | 2020-12-15 | 北京鸿运汇商贸有限公司 | Self-supporting optical cable sheath extrusion die |
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| CN210210990U (en) * | 2019-07-22 | 2020-03-31 | 晋江市陆钢塑料机械有限公司 | Superfine hole underwater granulation die head assembly |
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| CN2145105Y (en) * | 1993-02-17 | 1993-11-03 | 刘光知 | Heat-insulation type granular making-machine handpiece of force-out machine |
| JP2001030057A (en) * | 1999-07-16 | 2001-02-06 | Kawaguchiko Seimitsu Co Ltd | Vacuum forming apparatus for die casting |
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