CN107252941A - The preparation method of thrower head - Google Patents
The preparation method of thrower head Download PDFInfo
- Publication number
- CN107252941A CN107252941A CN201710478283.4A CN201710478283A CN107252941A CN 107252941 A CN107252941 A CN 107252941A CN 201710478283 A CN201710478283 A CN 201710478283A CN 107252941 A CN107252941 A CN 107252941A
- Authority
- CN
- China
- Prior art keywords
- liner plate
- thrower head
- preparation
- diamond
- diamond layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 34
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 84
- 239000010432 diamond Substances 0.000 claims abstract description 84
- 239000011159 matrix material Substances 0.000 claims abstract description 50
- 238000005219 brazing Methods 0.000 claims abstract description 27
- 239000000956 alloy Substances 0.000 claims abstract description 21
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims abstract description 16
- 238000005476 soldering Methods 0.000 claims abstract description 15
- 239000011814 protection agent Substances 0.000 claims abstract description 7
- 239000003223 protective agent Substances 0.000 claims description 19
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 12
- 238000003801 milling Methods 0.000 claims description 7
- 235000011837 pasties Nutrition 0.000 claims description 7
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 6
- 229910021538 borax Inorganic materials 0.000 claims description 6
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 6
- NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 claims description 6
- 239000004328 sodium tetraborate Substances 0.000 claims description 6
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 6
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 5
- 229910052700 potassium Inorganic materials 0.000 claims description 5
- 239000011591 potassium Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 239000001103 potassium chloride Substances 0.000 claims description 3
- 235000011164 potassium chloride Nutrition 0.000 claims description 3
- 239000011698 potassium fluoride Substances 0.000 claims description 3
- 235000003270 potassium fluoride Nutrition 0.000 claims description 3
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 229910052731 fluorine Inorganic materials 0.000 claims 1
- 239000011737 fluorine Substances 0.000 claims 1
- WUUHFRRPHJEEKV-UHFFFAOYSA-N tripotassium borate Chemical compound [K+].[K+].[K+].[O-]B([O-])[O-] WUUHFRRPHJEEKV-UHFFFAOYSA-N 0.000 claims 1
- 239000012298 atmosphere Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000004907 flux Effects 0.000 description 10
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000003292 glue Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229910000679 solder Inorganic materials 0.000 description 6
- 238000005422 blasting Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000002791 soaking Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005253 cladding Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/002—Soldering by means of induction heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention discloses a kind of preparation method of thrower head.The preparation method of thrower head comprises the following steps：Diamond compact is provided, diamond compact includes hard alloy substrate and the diamond layer being arranged on hard alloy substrate；Liner plate matrix is provided；Use soldering that hard alloy substrate is connected on liner plate matrix to form liner plate and before brazing in the surface covering protection agent of diamond layer to prevent diamond layer to be carbonized or aoxidize during soldering.The preparation method of the thrower head of the present invention is when diamond compact is brazed on hard alloy substrate in the surface covering protection agent of diamond layer to prevent diamond layer to be carbonized or aoxidize during soldering; so as to protect diamond layer; with it is of the prior art protect diamond layer in vacuum atmosphere compared with, cost is relatively low and easy is promoted the use of in production practices.
Description
Technical field
The present invention relates to technical field of engineering machinery, more particularly to a kind of preparation method of thrower head.
Background technology
Thrower head subjects the impact and friction of high speed building stones when vertical shaft impact crusher works, and is vertical shaft impact
The standing consumable accessory of disintegrating machine.Thrower head is made up of thrower head matrix and liner plate, and the service life of thrower head depends primarily on throwing
Material head liner plate.Liner plate of the prior art generally using hard alloy prepare, and hard alloy by refractory metal carbide and
Binding metal is prepared through powder metallurgical technique.On the one hand, the attribute of hard phase in itself is limited by, Cemented Carbide Hardness is significantly
The space of lifting is little, therefore the space that hard alloy liner plate service life is substantially improved is little；Secondly, if hardness Design is too high
Hard alloy fragility can be caused to increase, liner plate bears the incessantly impulsive force of high speed building stones and fragmentation causes liner plate premature failure；Again
Secondary, thrower head matrix is not wear-resisting enough, and matrix is worn quickly, and this also have impact on the usage cycles of thrower head.
In addition, in the prior art when preparing thrower head, using epoxy resin glue by hard alloy liner plate and thrower head
Matrix is attached.If adhesion strength is not good, under the continuous impact of high speed building stones, thrower head liner plate has de- with thrower head matrix
From risk.
The content of the invention
It is an object of the invention to provide a kind of preparation method of thrower head, to improve the service life of thrower head.
The present invention provides a kind of preparation method of thrower head, comprises the following steps：
Diamond compact is provided, diamond compact includes hard alloy substrate and is arranged on hard alloy substrate
Diamond layer；
Liner plate matrix is provided；
Use soldering that hard alloy substrate is connected on liner plate matrix to form liner plate and before brazing in diamond layer
Surface covering protection agent to prevent diamond layer to be carbonized or aoxidize during soldering.
Further, borax, potassium fluoborate, potassium chloride and potassium carbonate are contained in protective agent.
Further, in protective agent, borax：Potassium fluoborate：Potassium fluoride：The ratio of potassium carbonate is：40~60 parts by weight：10
~20 parts by weight：5~10 parts by weight：5~10 parts by weight.
Further, protective agent is powdered, and protective agent is sprinkled upon into the surface of diamond layer or is tuned into protective agent with water
The surface of diamond layer is applied to after pasty state.
Further, brazing temperature is 650 DEG C~850 DEG C, and the holding time is 10~60s.
Further, diamond compact is connected on liner plate matrix formed liner plate after liner plate is corrected and made
The height that arches upward of the working face of the setting diamond compact of liner plate is less than 3mm.
Further, the fitting surface progress milling to liner plate after being corrected to liner plate is put down.
Further, thrower head preparation method also includes liner plate being assemblied on thrower head matrix.
Further, thrower head matrix includes the mounting groove for being used to assemble liner plate, and liner plate is bonded in into peace using adhesive
In tankage and liner plate is connected in mounting groove and solidified using threaded connector.
Further, the different diamond of the surface configuration of diamond layer is selected to answer according to the different applying working conditions of thrower head
Close piece.
The preparation method of the thrower head provided based on the present invention, the liner plate of preparation includes liner plate matrix and diamond is compound
Piece, the wearability of diamond compact make it that the working face wearability of the thrower head of the present invention is higher, so as to improve thrower head
Service life.And the present invention thrower head preparation method when diamond compact is brazed on hard alloy substrate
The surface covering protection agent of diamond layer is to prevent diamond layer to be carbonized or aoxidize during soldering, so as to protect diamond
Layer, and with it is of the prior art protect diamond layer in vacuum atmosphere compared with, cost is relatively low and easy is pushed away in production practices
Extensively use.
By referring to the drawings to the detailed description of the exemplary embodiment of the present invention, further feature of the invention and its
Advantage will be made apparent from.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of the diamond compact of the embodiment of the present invention；
Fig. 2 is the structural representation of the diamond compact of another embodiment of the present invention；
Fig. 3 is the structural representation of the liner plate matrix of the embodiment of the present invention；
Fig. 4 is the structural representation of the liner plate of the embodiment of the present invention；
Fig. 5 is the structural representation of the thrower head matrix of the embodiment of the present invention；
Fig. 6 is the thrower head structural representation of the embodiment of the present invention.
Each reference is represented respectively：
1- diamond compacts；11- hard alloy substrates；12- diamond layers；2- liner plate matrixes；22- counter sinks；23- gold
Hard rock composite sheet mounting groove；3- thrower head matrixes；31- liner plate mounting grooves；32- overlay claddings.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any limitation.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
Unless specifically stated otherwise, the part and positioned opposite, the digital table of step otherwise illustrated in these embodiments
Do not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for the ease of description, each portion shown in accompanying drawing
The size divided not is to be drawn according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, the technology, method and apparatus should be considered as authorizing explanation
A part for book.In shown here and discussion all examples, any occurrence should be construed as merely exemplary, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should be noted that：Similar label
Similar terms is represented in following accompanying drawing with letter, therefore, once it is defined in a certain Xiang Yi accompanying drawing, then subsequent attached
It need not be further discussed in figure.
For the ease of description, space relative terms can be used herein, such as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation levied.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.If for example, the device in accompanying drawing is squeezed, be described as " in other devices
It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made to the relative description in space used herein above.
As shown in Figures 1 to 6, the preparation method of the thrower head of the embodiment of the present invention, comprises the following steps：
Step one：Diamond compact 1 is provided.Diamond compact 1 includes hard alloy substrate 11 and is arranged at hard
Diamond layer 12 on alloy substrate 11.
Step 2：Liner plate matrix 2 is provided.
Step 3：Use soldering that hard alloy substrate 11 is connected on liner plate matrix 2 to form liner plate and before brazing
In the surface covering protection agent of diamond layer 12 to prevent diamond layer to be carbonized or aoxidize during soldering.
The preparation method of the thrower head of the embodiment of the present invention is prepared by above step is answered by liner plate matrix and diamond
Close the liner plate of piece composition, the wearability of diamond compact cause the working face wearability of the thrower head of the embodiment of the present invention compared with
Height, so as to improve the service life of thrower head.And the preparation method of the thrower head of the embodiment of the present invention is combined by diamond
Piece is brazed in when on hard alloy substrate in the surface covering protection agent of diamond layer to prevent diamond layer in the process of soldering
Middle carbonization or oxidation, so as to protect diamond layer, and with it is of the prior art protect diamond layer in vacuum atmosphere compared with,
Cost is relatively low and easy is promoted the use of in production practices.
As shown in figure 3, being provided with multiple Buddha's warrior attendants for installing diamond compact 1 on the liner plate matrix 2 of the present embodiment
Stone composite sheet mounting groove 23.Multiple formation of diamond compact mounting groove 23 are similar to cellular structure.Two adjacent Buddha's warrior attendants
There is small spacing between stone composite sheet mounting groove 23.
Preferably, in the present embodiment, borax, potassium fluoborate, potassium chloride and potassium carbonate are contained in protective agent.Need explanation
, four kinds of components of the above are mainly contained in the protective agent of the present embodiment, but it is not excluded that can contain other component.
Preferably, in protective agent, borax：Potassium fluoborate：Potassium fluoride：The ratio of potassium carbonate is：40~60 parts by weight：10~
20 parts by weight：5~10 parts by weight：5~10 parts by weight.Protective agent formed by respective components is weighed with aforementioned proportion to Buddha's warrior attendant
The protecting effect of rock layers is optimal.
The protective agent that said components are mixed is powdered, protective agent can be sprinkled upon into Buddha's warrior attendant in specific implementation process
The surface of rock layers.Protective agent can also be tuned into the surface that diamond layer is applied to after pasty state with water.It is tuned into after pasty state and is applied with water
The surface for being put on diamond layer allows protective agent to be more easy to be attached on the surface of diamond layer, so as to be formed to diamond layer
Preferably protection.
Preferably, mixture is tuned into pasty state with deionized water after said components are mixed.
Preferably, above-mentioned brazing process can be completed using the method for high-frequency induction brazing.Brazing temperature be 650 DEG C~
850 DEG C, the holding time is 10~60s.
Liner plate 2 includes the working face and the bottom surface fitting surface relative with working face for setting diamond compact.
Preferably, liner plate is carried out after diamond compact is connected on liner plate matrix and forms liner plate by above-mentioned steps three
Correct and make the height that arches upward of the working face of the setting diamond compact of liner plate to be less than 3mm.Forcing press can be passed through during correction
Applying pressure to the liner plate after welding makes liner plate have a certain degree of reversible deformation, and is kept for certain time to realize correction.
Fitting surface progress milling to liner plate after being corrected to liner plate is put down.Because the fitting surface of liner plate will be with thrower head base
Liner plate mounting groove on body is assembled, to ensure the connection reliability between liner plate and thrower head matrix, be to the dress of liner plate
Milling is carried out with face to put down.
Specifically, the bottom surface of liner plate is carried out into milling to put down to being put on horizontal plane and can fitted completely.
After the completion of the preparation (as shown in Figure 4) by liner plate, what is next completed is that liner plate is installed on into thrower head matrix
On.
As shown in figure 5, thrower head matrix 3 includes the liner plate mounting groove 31 for being used to assemble liner plate.And in liner plate mounting groove 31
Provided with screw.The screw is correspondingly arranged with the counter sink 22 (as shown in Figure 3) set on liner plate matrix 2 and matching size is closed.
Liner plate is bonded in liner plate mounting groove and liner plate is connected into liner plate using threaded connector using adhesive during assembling and is installed
Groove is interior and is solidified.
Thrower head matrix shown in Fig. 5 and Fig. 6 is shaped as approximately parallelepiped body.But thrower head provided by the present invention
Preparation method is not limited to thrower head matrix for cuboid, and thrower head matrix can be other shapes.Certain liner plate mounting groove
Shape is also not necessarily limited to the rectangular shape shown in accompanying drawing.
Specifically, to thrower head matrix liner plate mounting groove and the face to be assembled of liner plate carries out blasting treatment.And in liner plate
The resin glue configured is smeared in mounting groove, liner plate is put into blending bolt in liner plate mounting groove and fastened.And by above-mentioned dress
The assembly of the liner plate prepared and thrower head matrix is solidified, and obtains thrower head, as shown in Figure 6.The throwing of the embodiment of the present invention
The method that the preparation method of material head is bonded by using adhesive and bolt fastening two ways is combined comes connecting lining plate and material casting
Head matrix, makes have higher bonding strength between liner plate and thrower head matrix, lifts the service life of thrower head and can be beneficial to
Ensure the safety in utilization of thrower head.
Preferably, it should make the fitting surface of liner plate mounting groove that there is certain roughness before resin glue is smeared.
Preferably, in order to improve the wearability of thrower head, the inner side of thrower head matrix 3 is provided with overlay cladding 32.Built-up welding
The length of layer should be consistent with diamond compact region on liner plate, and width is determined on a case-by-case basis, and the position of overlay cladding should be close
The liner plate mounting groove side of thrower head matrix.Built-up welding powder can be iron-based powder.
Preferably, the different diamond of the surface configuration of diamond layer is selected to be combined according to the different applying working conditions of thrower head
Piece.As shown in figure 1, when preparing the thrower head that low impulsive force operating mode is used, plane diamond compact can be selected.In system
During the thrower head that standby high impact forces operating mode is used, arc surfaced diamond compact can be selected.
Below by the preparation method of thrower head used in low impulsive force operating mode and the throwing used in high impact forces operating mode
The preparation method of material head is described in detail.
The preparation method for the thrower head that low impulsive force operating mode is used：
Plane diamond compact and thrower head matrix are chosen first, and make the size of liner plate mounting groove (long × wide
× high)：302mm × 15mm × 24mm, the size of diamond compact：Diameter 13.4mm × total height 8.0mm, diamond thickness
1.5mm。
With reference to above-mentioned liner plate mounting groove size and the physical dimension figure of the size design liner plate matrix of diamond compact, press
Dimensional drawing processing obtains liner plate matrix (can select 45 steel).
Blasting treatment is carried out to liner plate matrix and diamond compact and cleaned with acetone, dry for standby.By solder
Cut out, be put into dry for standby after acetone cleaning.Powdery brazing flux is tuned into pasty state brazing flux standby.Pacify in the diamond compact of liner plate
Brazing flux is smeared in tankage, solder is put into, brazing flux is smeared again on solder, diamond compact to be welded is put into and is applied in diamond layer
Smear protective agent, it is ready after be put into induction brazing machine and carry out soldering, brazing temperature is 650 DEG C, and the holding time is 60s, soldering
Holding furnace insulation is transferred to after finishing, holding temperature is 250 DEG C, and soaking time is 4h, and soaking time takes out air cooling after reaching, will be cold
But brazing flux residue is taken out in the brazing member blasting treatment finished and oxide skin obtains liner plate.
Brazing deformation correction is carried out to liner plate, and the milling of liner plate bottom surface is put down.
Using 45 steels for thrower head matrix, and close to notched areas build-up wear-resistant layer on the inside of thrower head matrix.
Resin glue, cleaning liner plate mounting groove and liner plate are prepared, resin glue is smeared in liner plate mounting groove, is put into liner plate, and
Fastened with bolt, be subsequently placed into holding furnace and solidified, solidification temperature is 100 DEG C, hardening time 3h obtains thrower head.
The preparation method for the thrower head that high impact forces operating mode is used：
Choose cabochon diamond compact and thrower head matrix first, and make the liner plate mounting groove of thrower head matrix
Size (length × width × height) is：302mm × 18mm × 24mm, it is compound according to the selection of dimension cabochon diamond of liner plate mounting groove
Piece specification is 1608 i.e. (diameter 16.0mm × total height 8.0mm, cambered surface radius of curvature is 17mm, diamond thickness 1.5mm).
With reference to liner plate mounting groove size and the size design liner plate basal body structure dimensional drawing of diamond compact, by dimensional drawing
Machining obtains liner plate matrix, and liner plate basic material is 45 steel.
Blasting treatment is carried out to liner plate matrix and diamond compact and cleaned with acetone, dry for standby.Solder is cut out,
It is put into dry for standby after acetone cleaning.Powdery brazing flux is tuned into pasty state brazing flux standby.In the diamond compact mounting groove of liner plate
In smear brazing flux, be put into solder, smear brazing flux again on solder, be put into diamond compact to be welded and diamond layer smear protect
Protect agent, it is ready after be put into induction brazing machine carry out soldering, brazing temperature be 750 DEG C, the holding time is 10s, and soldering is finished
After be transferred to holding furnace insulation, holding temperature is 400 DEG C, and soaking time is 2h, and soaking time takes out air cooling after reaching, and will cool down
Brazing flux residue and oxide skin are taken out in complete brazing member blasting treatment.
Brazing deformation correction is carried out to liner plate, and the milling of liner plate bottom surface is put down.
Using 45 steels for thrower head matrix, and close to notched areas build-up wear-resistant layer on the inside of thrower head matrix；
Resin glue, cleaning liner plate mounting groove and liner plate are prepared, resin glue is smeared in liner plate groove, is put into liner plate, and use spiral shell
Bolt is fastened, and is subsequently placed into holding furnace and is solidified, and solidification temperature is 150 DEG C, and hardening time 2h obtains thrower head.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, those of ordinary skills in the art should understand that：Still
The embodiment of the present invention can be modified or equivalent substitution is carried out to some technical characteristics；Without departing from this hair
The spirit of bright technical scheme, it all should cover among claimed technical scheme scope of the invention.
Claims (10)
1. a kind of preparation method of thrower head, it is characterised in that comprise the following steps：
Diamond compact is provided, the diamond compact includes hard alloy substrate and is arranged at the hard alloy substrate
On diamond layer；
Liner plate matrix is provided；
Use soldering that the hard alloy substrate is connected on the liner plate matrix to form liner plate and before brazing described
The surface covering protection agent of diamond layer is to prevent the diamond layer to be carbonized or aoxidize during soldering.
2. the preparation method of thrower head according to claim 1, it is characterised in that contain borax, fluorine in the protective agent
Potassium borate, potassium chloride and potassium carbonate.
3. the preparation method of thrower head according to claim 2, it is characterised in that in the protective agent, borax：Fluoboric acid
Potassium：Potassium fluoride：The ratio of potassium carbonate is：40~60 parts by weight：10~20 parts by weight：5~10 parts by weight：5~10 parts by weight.
4. the preparation method of thrower head according to claim 1, it is characterised in that the protective agent is powdered, by institute
Protective agent is stated to be sprinkled upon the surface of the diamond layer or the protective agent is tuned into the table for being applied to diamond layer after pasty state with water
Face.
5. the preparation method of thrower head according to any one of claim 1 to 4, it is characterised in that brazing temperature is 650
DEG C~850 DEG C, the holding time is 10~60s.
6. the preparation method of thrower head according to any one of claim 1 to 4, it is characterised in that by the Buddha's warrior attendant
Stone composite sheet is connected to be formed on the liner plate matrix and the liner plate is corrected after liner plate and makes the setting institute of the liner plate
The height that arches upward for stating the working face of diamond compact is less than 3mm.
7. the preparation method of thrower head according to claim 6, it is characterised in that right after being corrected to the liner plate
The fitting surface of the liner plate carries out milling and put down.
8. the preparation method of thrower head according to any one of claim 1 to 4, it is characterised in that the thrower head system
Preparation Method also includes the liner plate being assemblied on thrower head matrix.
9. the preparation method of thrower head according to claim 8, it is characterised in that the thrower head matrix includes being used to fill
The liner plate, is bonded in the mounting groove and utilizes threaded connector by institute by the mounting groove with the liner plate using adhesive
Liner plate is stated to be connected in the mounting groove and solidified.
10. the preparation method of thrower head according to any one of claim 1 to 4, it is characterised in that according to thrower head
Different applying working conditions select the different diamond compact of the surface configuration of diamond layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110756277A (en) * | 2019-09-12 | 2020-02-07 | 来宾市兴宾区日昌升新材料有限公司 | Material throwing head of vertical shaft type crusher |
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| CN107252941B (en) | 2020-03-20 |
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