CN114985678A - Thermoforming water channel insert casting process - Google Patents
Thermoforming water channel insert casting process Download PDFInfo
- Publication number
- CN114985678A CN114985678A CN202210676779.3A CN202210676779A CN114985678A CN 114985678 A CN114985678 A CN 114985678A CN 202210676779 A CN202210676779 A CN 202210676779A CN 114985678 A CN114985678 A CN 114985678A
- Authority
- CN
- China
- Prior art keywords
- casting
- water channel
- foam
- graphite rod
- melting point
- 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.)
- Pending
Links
- 238000005266 casting Methods 0.000 title claims abstract description 49
- 238000003856 thermoforming Methods 0.000 title claims abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 26
- 239000010439 graphite Substances 0.000 claims abstract description 26
- 239000006260 foam Substances 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 238000002844 melting Methods 0.000 claims abstract description 16
- 230000008018 melting Effects 0.000 claims abstract description 16
- 238000005520 cutting process Methods 0.000 claims abstract description 9
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 claims description 2
- 229920006327 polystyrene foam Polymers 0.000 claims description 2
- 230000002269 spontaneous effect Effects 0.000 claims description 2
- 239000000498 cooling water Substances 0.000 abstract description 4
- 238000010114 lost-foam casting Methods 0.000 abstract description 3
- 238000010097 foam moulding Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract description 2
- 238000003754 machining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/02—Lost patterns
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
- B22C9/046—Use of patterns which are eliminated by the liquid metal in the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
A thermoforming water channel insert casting process belongs to the technical field of material casting, a molding surface block is numerically controlled by adopting casting foam, foam buckled out of a water channel is marked out on the casting foam molding surface block by using a hot cutting line, a graphite rod is wrapped by tin paper and placed in a groove after cutting, the rest positions are filled with the foam, then H13 steel is adopted to perform mold lost casting, and the melting point of H13 steel is 1090 ℃, and the melting point of the graphite rod is 3652 ℃, so that the position of the graphite rod after casting cannot be melted, and the position of the water channel groove is reserved. The invention utilizes the characteristic that the melting point of the graphite rod is far greater than the melting point of H13 steel, and can eliminate the step of separately processing the cooling water channel in the process of adopting the lost foam casting, thereby reducing the processing cost and directly reducing the loss of manpower and material resources. The process is simple to operate, safe and reliable in use, convenient to inspect and maintain and wide in application range.
Description
Technical Field
The invention belongs to the technical field of material casting, and particularly relates to a thermoforming mold insert casting process.
Background
The H13 die steel is an air-cooled hardening type hot-work die steel with high strength and good toughness, and has good heat resistance, red hardness, wear resistance, thermal fatigue resistance and thermal cracking resistance. With the development of casting technology, in order to meet the capacity requirement, satisfy the requirement of humanization and reduce the processing cost, but most of the cooling water channels of the casting mold in the prior art are processed after the whole casting mold is processed, and then the water channel grooves are processed on the casting mold in a machining mode, so that the processing process not only generates redundant energy consumption, but also increases the casting cost, and therefore, a new technical scheme is urgently needed to solve the problems in the prior art.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the provided thermoforming water channel insert casting process can eliminate the step of separately processing the cooling water channel in the lost foam casting process, reduce the processing cost and directly reduce the loss of manpower and material resources.
The thermoforming water channel insert casting process is characterized in that: comprises the following steps which are carried out in sequence:
firstly, casting foam is adopted as a material, and a thermoforming mold workpiece profile block to be cast is manufactured through a numerical control model;
step two, cutting more than one water channel reserved opening on the molded surface block prepared in the step one by adopting a hot cutting line, selecting a graphite rod with the diameter smaller than the opening size according to the opening size of the water channel reserved opening, wrapping a tin paper layer on the outer side of the graphite rod, putting the graphite rod wrapped with the tin paper layer into the water channel reserved opening, and filling up the opening part of the opening by adopting casting foam to obtain a casting foam molded surface block with the reserved water channel;
step three, casting the casting foam profile block with the reserved water channel obtained in the step two by adopting H13 steel, obtaining an H13 steel profile block after casting, removing the graphite rod without melting the graphite rod, and forming a water channel groove position on the H13 steel profile block;
thus, the thermoforming water channel insert is completed through a casting process.
The cast foam in the first step is a polystyrene foam board, and the melting point is 240 ℃ and the spontaneous combustion temperature is 427 ℃.
The melting point of the H13 steel adopted in the third step is 1090 ℃, and the melting point of the graphite rod is 3652 ℃.
Through the design scheme, the invention can bring the following beneficial effects: a thermoforming water channel insert casting process utilizes the characteristic that the melting point of a graphite rod is far greater than that of H13 steel, and can eliminate the step of independently processing a cooling water channel in the lost foam casting process, reduce the processing cost and directly reduce the loss of manpower and material resources. The process is simple to operate, safe and reliable in use, convenient to inspect and maintain and wide in application range.
Drawings
The invention is further described with reference to the following figures and detailed description:
FIG. 1 is a schematic structural view of a preformed opening of a foam water channel cast by a hot forming water channel insert casting process.
In the figure 1-a gap is reserved in the water channel.
Detailed Description
A thermoforming water channel insert casting process comprises the following steps in sequence:
firstly, casting foam is adopted as a material, and a thermoforming mold workpiece profile block to be cast is manufactured through a numerical control model;
step two, as shown in fig. 1, cutting more than one water channel reserved opening 1 on the molded surface block prepared in the step one by adopting a hot cutting line, selecting a graphite rod with the diameter smaller than the opening size according to the opening size of the water channel reserved opening, wrapping a tin paper layer on the outer side of the graphite rod, putting the graphite rod wrapped with the tin paper layer into the water channel reserved opening, and filling up the opening part of the opening by adopting casting foam to obtain a casting foam molded surface block with a reserved water channel;
step three, casting the casting foam profile block with the reserved water channel obtained in the step two by adopting H13 steel, obtaining an H13 steel profile block after casting, removing the graphite rod without melting the graphite rod, and forming a water channel groove position on the H13 steel profile block;
thus, the thermoforming water channel insert is completed through a casting process.
The invention adopts casting foam to numerically control a molding surface block, marks out foam buckled out of a water channel on the casting foam molding surface block by a hot cutting line, wraps a graphite rod by tinfoil, puts the graphite rod into a cut groove, fills the rest positions by the foam, and then adopts H13 steel to carry out mold lost casting, because the melting point of the H13 steel is 1090 ℃ and the melting point of the graphite rod is 3652 ℃, the position of the graphite rod can not be melted after casting, and the position of the water channel groove can be reserved.
The invention has simple process operation, directly forms the water channel groove part in the casting process, reduces the link of machining the water channel groove and achieves the aims of saving energy, reducing consumption, lowering cost and improving efficiency.
Claims (3)
1. The hot forming water channel insert casting technology is characterized in that: comprises the following steps which are carried out in sequence,
firstly, casting foam is adopted as a material, and a thermoforming mold workpiece profile block to be cast is manufactured through a numerical control model;
step two, cutting more than one water channel reserved opening on the molded surface block prepared in the step one by adopting a hot cutting line, selecting a graphite rod with the diameter smaller than the opening size according to the opening size of the water channel reserved opening, wrapping a tin paper layer on the outer side of the graphite rod, putting the graphite rod wrapped with the tin paper layer into the water channel reserved opening, and filling up the opening part of the opening by adopting casting foam to obtain a casting foam molded surface block with the reserved water channel;
step three, casting the casting foam profile block with the reserved water channel obtained in the step two by adopting H13 steel, obtaining an H13 steel profile block after casting, removing the graphite rod without melting the graphite rod, and forming a water channel groove position on the H13 steel profile block;
thus, the thermoforming water channel insert is completed through a casting process.
2. The process of casting the thermoformed waterway insert of claim 1, wherein: the cast foam in the first step is a polystyrene foam board, and the melting point is 240 ℃ and the spontaneous combustion temperature is 427 ℃.
3. The process of casting the thermoformed waterway insert of claim 1, wherein: the melting point of the H13 steel adopted in the third step is 1090 ℃, and the melting point of the graphite rod is 3652 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210676779.3A CN114985678A (en) | 2022-06-16 | 2022-06-16 | Thermoforming water channel insert casting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210676779.3A CN114985678A (en) | 2022-06-16 | 2022-06-16 | Thermoforming water channel insert casting process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114985678A true CN114985678A (en) | 2022-09-02 |
Family
ID=83034849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210676779.3A Pending CN114985678A (en) | 2022-06-16 | 2022-06-16 | Thermoforming water channel insert casting process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114985678A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0899152A (en) * | 1994-09-29 | 1996-04-16 | Kubota Corp | Foamed pattern for casting lost foam pattern |
| JP2004351437A (en) * | 2003-05-27 | 2004-12-16 | Kimura Chuzosho:Kk | Casting method |
| CN101347899A (en) * | 2008-08-22 | 2009-01-21 | 常州精棱铸锻有限公司 | Method for molding long and thin hole on large-sized section casting parts using mineral carbon |
| CN101873733A (en) * | 2010-02-05 | 2010-10-27 | 姚会元 | Conductive copper jaw plate for mine heat furnace and manufacture method thereof |
| CN103894545A (en) * | 2012-12-26 | 2014-07-02 | 龙工（福建）铸锻有限公司 | Lost foam casting technology of casting with flat, inflected, and deep blind hole |
| CN110496944A (en) * | 2019-09-24 | 2019-11-26 | 芜湖伯特利汽车安全系统股份有限公司 | Casting device, casting technique and the brake disc of brake disc |
| CN111112580A (en) * | 2020-01-13 | 2020-05-08 | 芜湖泓鹄材料技术有限公司 | Forming method of heat dissipation channel of automobile stamping die casting |
| CN215033389U (en) * | 2021-07-02 | 2021-12-07 | 北京晶龙特碳科技有限公司 | Graphite mold for aluminum pipe forming |
-
2022
- 2022-06-16 CN CN202210676779.3A patent/CN114985678A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0899152A (en) * | 1994-09-29 | 1996-04-16 | Kubota Corp | Foamed pattern for casting lost foam pattern |
| JP2004351437A (en) * | 2003-05-27 | 2004-12-16 | Kimura Chuzosho:Kk | Casting method |
| CN101347899A (en) * | 2008-08-22 | 2009-01-21 | 常州精棱铸锻有限公司 | Method for molding long and thin hole on large-sized section casting parts using mineral carbon |
| CN101873733A (en) * | 2010-02-05 | 2010-10-27 | 姚会元 | Conductive copper jaw plate for mine heat furnace and manufacture method thereof |
| CN103894545A (en) * | 2012-12-26 | 2014-07-02 | 龙工（福建）铸锻有限公司 | Lost foam casting technology of casting with flat, inflected, and deep blind hole |
| CN110496944A (en) * | 2019-09-24 | 2019-11-26 | 芜湖伯特利汽车安全系统股份有限公司 | Casting device, casting technique and the brake disc of brake disc |
| CN111112580A (en) * | 2020-01-13 | 2020-05-08 | 芜湖泓鹄材料技术有限公司 | Forming method of heat dissipation channel of automobile stamping die casting |
| CN215033389U (en) * | 2021-07-02 | 2021-12-07 | 北京晶龙特碳科技有限公司 | Graphite mold for aluminum pipe forming |
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