CN108032529A - A kind of thermoplasticity answers material molding component core preparation method - Google Patents
A kind of thermoplasticity answers material molding component core preparation method Download PDFInfo
- Publication number
- CN108032529A CN108032529A CN201711094170.0A CN201711094170A CN108032529A CN 108032529 A CN108032529 A CN 108032529A CN 201711094170 A CN201711094170 A CN 201711094170A CN 108032529 A CN108032529 A CN 108032529A
- Authority
- CN
- China
- Prior art keywords
- thermoplasticity
- core
- sand
- mould
- molding
- 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
Classifications
-
- 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
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
- B29C67/242—Moulding mineral aggregates bonded with resin, e.g. resin concrete
- B29C67/243—Moulding mineral aggregates bonded with resin, e.g. resin concrete for making articles of definite length
- B29C67/244—Moulding mineral aggregates bonded with resin, e.g. resin concrete for making articles of definite length by vibrating the composition before or during moulding
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3807—Resin-bonded materials, e.g. inorganic particles
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of thermoplasticity to answer material molding component core preparation method, including makes the mould of mandrel molding, make the mixture of molding sand and resin, make sand core structure (4), taking out sand core structure (4) and on the outside of the sand core internal model made the step of one layer of release cloth (3) of parcel.The thermoplasticity of the present invention answers material molding component core preparation method, and can produce can bear high temperature and pressure core sand core structure, after answering material molding component by using core sand core structure completion thermoplasticity, completes the quick smoothly demoulding of core.
Description
Technical field
The invention belongs to mould molding preparation field, is related to composite material forming core molding Preparation Method, more particularly to one
Kind novel thermoplastic answers material molding component core preparation method.
Background technology
Using thermoplastic resin as matrix, using fiber as reinforcement manufactured composite material --- fiber reinforced thermolplastic tree
Resin-based composite (FRTP) is the fiber reinforced composite material quickly grown in recent years, with conventional thermosetting resin base
Composite material (FRP) is compared, FRTP have impact flexibility is high, curring time is short, repeatable utilization, high temperature resistant, it is environment resistant it is good,
Have similar to the advantage such as the processing characteristic of metal, cost be low, so FRTP is increasingly subject to various countries to pay attention to, research application is very living
Jump, is applied, development speed is quickly in Aeronautics and Astronautics, automobile, chemical industry, field of electronics.
But during thermoplastic composite molding component, composite element need to undergo 340 DEG C -360 DEG C of height
Temperature and 10 tons/m2Surface pressure, general clamping material (such as foamed aluminium or paper honeycomb and expanded rubber core) is difficult to bear
High temperature and pressure condition of molding above, therefore, general external mold and core use steel.But making small-sized or there is complex shape
During the thermoplastic composite part of face or cavity, structure is frequently present of closed pore or closes corner structure, as closed corner structure 2 in Fig. 1,
After causing heating cure to be molded, conventional composites materials shaping core (such as invar sintered-carbide die) can not be successfully the demoulding, lead
Such part is caused not make.Therefore, need to be directed to needs the thermoplastic composite moulding process of high temperature and pressure condition of molding to open
Send out core preparation method a kind of, the core for making to make can not only bear high temperature and pressure during shaping, be also equipped with small size operation
The ability that mouth takes out.
The content of the invention
The purpose of the present invention is：Devise a kind of thermoplasticity and answer material molding component core preparation method, it is therefore an objective to make the core
Mould can bear high temperature and pressure and can smoothly be demoulded after the completion of molding component.
In view of the above problem of the prior art, disclosed one side, the present invention use following technology according to the present invention
Scheme：
A kind of thermoplasticity answers material molding component core preparation method, comprises the following steps：
Step 1, the mould of mandrel molding is made；
Step 2, the mixture of molding sand and resin is made；
Step 3, pour the mixture into mould, produce sand core structure 4；
Step 4, sand core structure 4 is taken out；
Step 5, one layer of release cloth 3 is wrapped up on the outside of the sand core internal model made, core is completed and prepares.
It is characterized in that, step 1 is specially：The interior shape face structure of material component 1 is answered according to thermoplasticity, makes mandrel molding
Mould, mold materials are metal or timber.
It is characterized in that, step 2 is specially：Quartz sand, Hu furane resinses and sulfonic acid curing agent are mixed, and are sufficiently stirred,
Ensure that Hu furane resinses are uniformly distributed in quartz sand.
It is characterized in that, step 3 is specially：The mixture formed in step 2 is poured into the mould prepared in step 1
In, mixture is compacted in a mold by mechanical oscillation, and mixture is constantly added, then mould is deposited naturally at room temperature
Certain time is put, is further taken out and the thermoplasticity sand core structure 4 that to answer 1 inside cavity geomery of material component consistent.
Beneficial effect：
The thermoplasticity of the present invention answers material molding component core preparation method, and can produce can bear high temperature and pressure core sand
Cored structure, after answering material molding component by using core sand core structure completion thermoplasticity, completes the quick smoothly demoulding of core.
Brief description of the drawings
Fig. 1 is integral composite of embodiment of the present invention structure and core mold structure schematic diagram.
In figure：1- thermoplasticity answers material component；2- closes corner structure；3- release cloths；4- sand core structures.
Embodiment
The present invention is described in further detail with reference to embodiment, but the implementation of the present invention is not limited to this.
The core preparation method comprises the following steps that：
Step 1, the mould of mandrel molding is made；
According to thermoplasticity in Fig. 1 answer material component 1 interior shape face structure fabrication mandrel molding mould (mold materials can be gold
Category or timber)；
Step 2, molding sand and resin compound are made；
By quartz sand, Hu furane resinses and sulfonic acid curing agent by a certain percentage (such as：Resin content 1%-5%, curing agent
Below content 1%) mixing, and be sufficiently stirred, ensure that resin is uniformly distributed in molding sand；
Step 3, pour the mixture into mould, produce sand core internal model；
The mixture formed in step 2 is poured into the mould prepared in step 1, mixture is existed by mechanical oscillation
Be compacted in mould, and constantly add mixture, then by add mixture mould room temperature natural storage certain time (such as：
>=24h), then die sinking take out with the thermoplasticity sand core structure 4 that to answer 1 inside cavity geomery of material component consistent, such as Fig. 1 institutes
Show；
Step 4, sand core structure 4 is taken out；
Step 5, in sand core structure 4 outer wrapping, the one layer of release cloth 3 made；
Release cloth 3 is used outside the sand core structure 4 that step 3 is produced, core is completed and prepares.
After preparing core using the method for the present invention, core can be used for the shaping that thermoplasticity answers material component 1, molding component
Afterwards, using physical method (such as：Manually vibrate or giant rinse) sand core structure 4 in step 4 is broken up and dug out, because
4 outermost layer of sand core is enclosed with release cloth 3, therefore remaining sand core 4 will not adhere to thermoplasticity and answer on material component 1.
Claims (4)
1. a kind of thermoplasticity answers material molding component core preparation method, comprise the following steps：
Step 1, the mould of mandrel molding is made；
Step 2, the mixture of molding sand and resin is made；
Step 3, pour the mixture into mould, produce sand core structure (4)；
Step 4, sand core structure (4) is taken out；
Step 5, one layer of release cloth (3) is wrapped up on the outside of the sand core internal model made, core is completed and prepares.
2. a kind of thermoplasticity as claimed in claim 1 answers material molding component core preparation method, it is characterised in that step 1 has
Body is：The interior shape face structure of material component 1 is answered according to thermoplasticity, makes the mould of mandrel molding, mold materials are metal or timber.
3. a kind of thermoplasticity as claimed in claim 2 answers material molding component core preparation method, it is characterised in that step 2 has
Body is：Quartz sand, Hu furane resinses and sulfonic acid curing agent are mixed, and are sufficiently stirred, ensures Hu furane resinses in quartz sand uniformly
Distribution.
4. a kind of thermoplasticity as claimed in claim 3 answers material molding component core preparation method, it is characterised in that step 3 has
Body is：The mixture formed in step 2 is poured into the mould prepared in step 1, makes mixture in mould by mechanical oscillation
It is compacted in tool, and constantly adds mixture, then by mould natural storage certain time at room temperature, is further taken out and answered with thermoplasticity
The consistent sand core structure 4 of 1 inside cavity geomery of material component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711094170.0A CN108032529A (en) | 2017-11-08 | 2017-11-08 | A kind of thermoplasticity answers material molding component core preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711094170.0A CN108032529A (en) | 2017-11-08 | 2017-11-08 | A kind of thermoplasticity answers material molding component core preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108032529A true CN108032529A (en) | 2018-05-15 |
Family
ID=62093700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711094170.0A Pending CN108032529A (en) | 2017-11-08 | 2017-11-08 | A kind of thermoplasticity answers material molding component core preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108032529A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115090831A (en) * | 2022-06-14 | 2022-09-23 | 南京航空航天大学 | Composite material special-shaped revolving body forming method based on 3D printing lightweight sand mold |
| CN115609958A (en) * | 2022-11-26 | 2023-01-17 | 零八一电子集团四川天源机械有限公司 | Method for manufacturing non-drawable composite material special-shaped part |
| CN115674510A (en) * | 2022-11-26 | 2023-02-03 | 零八一电子集团四川天源机械有限公司 | Manufacturing method of detachable core mold of composite hollow structure product |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101569921A (en) * | 2009-05-31 | 2009-11-04 | 铜陵安东铸钢有限责任公司 | Casting technique for manufacturing mold core by using resin sand |
| CN103537630A (en) * | 2013-11-13 | 2014-01-29 | 中国石油集团济柴动力总厂成都压缩机厂 | Baking process of profile and sand core, made from resin sand, of natural gas power cylinder body |
| CN103962510B (en) * | 2014-03-31 | 2016-05-04 | 湖北三江航天江北机械工程有限公司 | Dead size core mould moulding process |
| CN106694849A (en) * | 2017-03-14 | 2017-05-24 | 沈阳大学 | High-strength pressure casting mold core prone to collapsing and preparing method of high-strength pressure casting mold core prone to collapsing |
-
2017
- 2017-11-08 CN CN201711094170.0A patent/CN108032529A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101569921A (en) * | 2009-05-31 | 2009-11-04 | 铜陵安东铸钢有限责任公司 | Casting technique for manufacturing mold core by using resin sand |
| CN103537630A (en) * | 2013-11-13 | 2014-01-29 | 中国石油集团济柴动力总厂成都压缩机厂 | Baking process of profile and sand core, made from resin sand, of natural gas power cylinder body |
| CN103962510B (en) * | 2014-03-31 | 2016-05-04 | 湖北三江航天江北机械工程有限公司 | Dead size core mould moulding process |
| CN106694849A (en) * | 2017-03-14 | 2017-05-24 | 沈阳大学 | High-strength pressure casting mold core prone to collapsing and preparing method of high-strength pressure casting mold core prone to collapsing |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115090831A (en) * | 2022-06-14 | 2022-09-23 | 南京航空航天大学 | Composite material special-shaped revolving body forming method based on 3D printing lightweight sand mold |
| CN115609958A (en) * | 2022-11-26 | 2023-01-17 | 零八一电子集团四川天源机械有限公司 | Method for manufacturing non-drawable composite material special-shaped part |
| CN115674510A (en) * | 2022-11-26 | 2023-02-03 | 零八一电子集团四川天源机械有限公司 | Manufacturing method of detachable core mold of composite hollow structure product |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103909658B (en) | Composite material connecting skirt forming method and mold and inner rubber core mold forming mold | |
| CN109910208A (en) | A kind of core model and preparation method thereof and composite material shape tube forming method | |
| CN108032529A (en) | A kind of thermoplasticity answers material molding component core preparation method | |
| CN101131032A (en) | Moulded glass fibre reinforced plastic grille and manufacturing method thereof | |
| CN113500799A (en) | Preform for composite hub molding and hub molding method | |
| CN105751409B (en) | A kind of manufacturing method of carbon fibre composite component die | |
| CN103273604A (en) | Curing and forming method of hollow structural member made of composite material | |
| CN102029732B (en) | Truss framework composite material product, and flowing medium forming mould and forming method thereof | |
| CN103752766B (en) | A kind of method for fast mfg of resin casting mould | |
| CN106182509A (en) | Use the operational approach of silica gel mould post forming | |
| CN108864995B (en) | Multi-axial composite material bent pipe and preparation method thereof | |
| CN110435187B (en) | LRTM mold and manufacturing method thereof | |
| CN110370679B (en) | Automobile back door inner plate and preparation method thereof | |
| US9469052B2 (en) | Method and apparatus for producing a fiber-reinforced plastics casting | |
| CN201538043U (en) | Truss and framework composite material product and flow media forming die thereof | |
| CN202137957U (en) | RTM (resin transfer molding) soft mould | |
| JP2003094448A (en) | Manufacturing method for frp hollow structure | |
| CN106077462B (en) | Mold with reinforcing plate structure | |
| CN106738510A (en) | A kind of special-shaped ventilation duct mandrel molding method | |
| TWI680849B (en) | Intermediary mold manufacturing method | |
| JP2760770B2 (en) | Manufacturing method of plastic injection molded hollow product with complicated shape and water-soluble core used for this | |
| CN220313905U (en) | Forming die of composite landing gear with pipeline cavity inside | |
| JP3141454B2 (en) | Method of manufacturing resin mold and vacuum casting method using resin mold | |
| CN100500406C (en) | Air pressure forming method for producing glass fibre reinforced plastic | |
| TWI761990B (en) | Manufacturing method of rapid mold with reinforced structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180515 |