CN115958161A - Production process of twisted blade mold - Google Patents
Production process of twisted blade mold Download PDFInfo
- Publication number
- CN115958161A CN115958161A CN202111191719.4A CN202111191719A CN115958161A CN 115958161 A CN115958161 A CN 115958161A CN 202111191719 A CN202111191719 A CN 202111191719A CN 115958161 A CN115958161 A CN 115958161A
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- CN
- China
- Prior art keywords
- foam
- mould
- mold
- die blank
- aluminum
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- 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.)
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000006260 foam Substances 0.000 claims abstract description 49
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 29
- 238000005266 casting Methods 0.000 claims abstract description 13
- 238000003801 milling Methods 0.000 claims abstract description 12
- 244000035744 Hura crepitans Species 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 19
- 239000004576 sand Substances 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 6
- 239000000919 ceramic Substances 0.000 description 10
- 238000003825 pressing Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007721 mold pressing method Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention provides a twisted blade mould and a production process thereof, and the twisted blade mould comprises the following steps: s1, preparing foam with proper size and a sandbox in which the foam can be placed; s2, milling the foam in the step S1 into the shapes of an upper die blank and a lower die blank by using a milling machine; s3, placing the foam mould obtained in the step S2 in a sand box, wherein the periphery and the bottom surface are spaced by 30mm, and the periphery of the foam mould is filled with gravels and compacted to meet the pressure of molten aluminum; step S4, casting molten aluminum on the foam mold in the step S3, wherein the foam is burnt into gas when meeting the molten aluminum, the molten aluminum is melted into a foam forming area, and after cooling, the initial upper mold and the lower mold are changed into wax films; and S5, breaking gravels around the aluminum mould, taking out the aluminum mould cooled in the step S4, loading the aluminum mould on a numerical control milling machine, and then finely processing a parting surface and a cavity. The invention reduces the weight of the finished product die and lightens the labor intensity of operators; the weight of the aluminum block is reduced, and the material cost of the die is reduced.
Description
Technical Field
The invention mainly relates to the field of blade production, in particular to a production process of a twisted blade die.
Background
Conventional blades are all obtained by means of a "wax pattern". The wax mould is an upper mould and a lower mould which are milled by using an aluminum block and reach the blade, and the blade is processed in small batch, so that the wax mould is not suitable for production line production when the wax mould is used for casting a wax model of the blade, and the operations of mould closing, wax injection and mould opening are all performed manually.
However, when the blade mold is too large and heavy, the labor intensity of an operator is increased by still using the mold lifting mode, and the production efficiency is reduced even if a crane is used for operation.
The invention discloses a Chinese patent with the application number of CN201711307519.4, the patent name: the hollow blade wax mold pressing method is applied for the date: 2017-12-11, the invention relates to a hollow blade wax mold pressing method, a ceramic core for forming a hollow blade wax mold cavity is provided with a plurality of thin-wall slender Tao Xinduan, a plurality of ceramic core sections are arranged at intervals in sequence, and the method comprises the following steps: filling wax or glue between the adjacent Tao Xinduan to connect the plurality of ceramic core sections into a whole; coating wax sheets at the empty groove of the ceramic core and the connection part of the ceramic core section and the ceramic core main body of the ceramic core; sticking a core support on the surface of the ceramic core; and putting the ceramic core subjected to the treatment into a mold cavity of a hollow blade wax mold to press the wax mold. In the wax mould pressing method, a plurality of ceramic core sections are connected into a whole by filling wax or glue between adjacent Tao Xinduan, so that the integral strength of thin-wall slender Tao Xinduan is enhanced, the impact resistance of liquid wax materials is improved, and the Tao Xinduan is not easy to break cores under the action of the injection pressure of the liquid paste wax materials, so that the technical problem in the prior art is solved, the success rate of wax mould pressing is improved, and the wax mould pressing method is simple and convenient to operate.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a production process of a twisted blade die, which comprises the following steps:
s1, preparing foam with proper size and a sandbox in which the foam can be placed;
s2, milling the foam in the step S1 into the shapes of an upper die blank and a lower die blank by using a milling machine;
s3, placing the foam mould obtained in the step S2 in a sand box, wherein the periphery and the bottom surface are spaced by 30mm, and the periphery of the foam mould is filled with gravels and compacted to meet the pressure of molten aluminum;
step S4, casting molten aluminum on the foam mold in the step S3, wherein the foam is burnt into gas when meeting the molten aluminum, the molten aluminum is melted into a foam forming area, and after cooling, the initial upper mold and the lower mold are changed into wax films;
and S5, breaking gravels around the aluminum mould, taking out the aluminum mould cooled in the step S4, loading the aluminum mould on a numerical control milling machine, and then finely processing a parting surface and a cavity.
Preferably, the sand in step S3 is silica sand.
Preferably, in the step S2, a margin of 6mm is left on the parting surfaces of the foam upper die blank and the foam lower die blank.
Preferably, the back surfaces of the foam upper die blank and the lower die blank in the step S2 comprise peripheral frames, and the middle part only retains the thickness required by the casting blank.
Preferably, a reinforcing rib is further arranged between the back frames of the foam upper die blank and the lower die blank in the step S2.
Preferably, the reinforcing ribs are perpendicular to the central axis of the casting.
Preferably, in the step S2, identification tentacles are arranged on one sides of the back surfaces of the foam upper die blank and the foam lower die blank.
The invention has the beneficial effects that: the weight of the finished product die is reduced, and the labor intensity of an operator is reduced; the weight of the aluminum block is reduced, and the material cost of the die is reduced.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a view of the present invention in the form of a mold blank;
fig. 3 is a view showing a structure of the back surface of the mold blank according to the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood and make the above features, objects, and advantages of the present invention more comprehensible, the present invention is further described with reference to the following examples. The examples are intended to illustrate the invention only and are not intended to limit the scope of the invention.
As shown in fig. 1-3, the present invention comprises the following steps:
s1, preparing foam with proper size and a sandbox in which the foam can be placed;
s2, milling the foam in the step S1 into the shapes of an upper die blank and a lower die blank by using a milling machine;
s3, placing the foam mould obtained in the step S2 in a sand box, wherein the periphery and the bottom surface are 30mm, filling sand and stone on the periphery of the foam mould, and compacting to meet the pressure of molten aluminum;
step S4, casting molten aluminum on the foam mold in the step S3, wherein the foam is burnt into gas when meeting the molten aluminum, the molten aluminum is melted into a foam forming area, and after cooling, the initial upper mold and the lower mold are changed into wax films;
and S5, breaking gravels around the aluminum mold, taking out the aluminum mold cooled in the step S4, loading on a numerical control milling machine, and then performing finish machining to obtain a parting surface and a cavity.
In the present embodiment, silica sand is preferably used as the sand in step S3.
By adopting the structure, the silica sand has higher fire resistance, and has special physical properties, such as thermal shock resistance, high hardness and the like, so the silica sand has great application in casting of mold cores, molds and the like.
Preferably, in the step S2, a margin of 6mm is left on the parting surfaces of the foam upper die blank and the foam lower die blank, and a margin is left on the peripheries of the parting surfaces.
Set up above-mentioned structure, make things convenient for the later stage to utilize numerically controlled fraise machine to carry out further processing to the steel mould, be favorable to the adjustment in later stage, effectively guarantee the accurate nature of mould, also carry out the wax pattern of casting the blade to the wax matrix in later stage.
In the present embodiment, preferably, the back surfaces of the upper and lower foam mold blanks in step S2 include peripheral frames, and the middle portion only retains the thickness required by the cast blank.
By adopting the structure, four walls are reserved on the periphery of the back of the blank, and the middle part of the blank is completely hollow, so that the weight of the material is effectively reduced by 80%.
In this embodiment, preferably, a reinforcing rib is further disposed between the back frames of the upper and lower foam mold blanks in step S2.
In this embodiment, the reinforcing ribs are preferably perpendicular to the central axis of the casting.
With the structure, the back surface of the blank is empty according to the previous structure in order to reduce the material weight of the blank, but a reinforcing rib is added in order to ensure the strength of the casting in the later period.
In this embodiment, it is preferable that the foam upper mold blank and the foam lower mold blank in step S2 have identification antenna in the back side.
Set up above-mentioned structure, utilize the discernment feeler, can make things convenient for operating personnel to distinguish mould and lower mould, consequently in the numerous operation factory building of goods, can not produce the condition of taking by mistake, in addition, also can play the effect of making things convenient for the drawing of patterns.
In use, the lost foam is utilized to cast a die blank, and the problem that when the blade die is too large and heavy, the manual die lifting mode cannot be used is solved.
The above-described embodiments are merely illustrative of the principles and utilities of the present patent application and are not intended to limit the present patent application. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of this patent application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of this patent application.
Claims (7)
1. A production process of a twisted blade die is characterized by comprising the following steps:
s1, preparing foam with proper size and a sandbox into which the foam can be put;
s2, milling the foam in the step S1 into the shapes of an upper die blank and a lower die blank by using a milling machine;
s3, placing the foam mould obtained in the step S2 in a sand box, wherein the periphery and the bottom surface are spaced by 30mm, and the periphery of the foam mould is filled with gravels and compacted to meet the pressure of molten aluminum;
step S4, casting molten aluminum on the foam mold in the step S3, wherein the foam is burnt into gas when meeting the molten aluminum, the molten aluminum is melted into a foam forming area, and after cooling, the initial upper mold and the lower mold are changed into wax films;
and S5, breaking gravels around the aluminum mold, taking out the aluminum mold cooled in the step S4, loading on a numerical control milling machine, and then performing finish machining to obtain a parting surface and a cavity.
2. The twisted blade mold production process according to claim 1, wherein: the sand in the step S3 is silica sand.
3. The twisted blade mold production process according to claim 2, wherein: and in the step S2, a 6mm allowance is reserved on the parting surfaces of the foam upper die blank and the lower die blank.
4. The twisted blade mold production process according to claim 3, wherein: in the step S2, the back surfaces of the foam upper die blank and the lower die blank comprise peripheral frames, and the middle part only retains the thickness required by the casting blank.
5. The twisted blade mold production process according to claim 4, wherein: and a reinforcing rib is further arranged between the back frames of the foam upper die blank and the lower die blank in the step S2.
6. The twisted blade mold production process according to claim 5, wherein: the reinforcing ribs are perpendicular to the central axis of the casting.
7. The twisted blade mold production process according to claim 6, wherein: and in the step S2, identification antennae are arranged on one sides of the back surfaces of the foam upper die blank and the lower die blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111191719.4A CN115958161A (en) | 2021-10-13 | 2021-10-13 | Production process of twisted blade mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111191719.4A CN115958161A (en) | 2021-10-13 | 2021-10-13 | Production process of twisted blade mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115958161A true CN115958161A (en) | 2023-04-14 |
Family
ID=87353420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111191719.4A Withdrawn CN115958161A (en) | 2021-10-13 | 2021-10-13 | Production process of twisted blade mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115958161A (en) |
-
2021
- 2021-10-13 CN CN202111191719.4A patent/CN115958161A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20230414 |