CN106903835A - A kind of injection molding process - Google Patents
A kind of injection molding process Download PDFInfo
- Publication number
- CN106903835A CN106903835A CN201510981204.2A CN201510981204A CN106903835A CN 106903835 A CN106903835 A CN 106903835A CN 201510981204 A CN201510981204 A CN 201510981204A CN 106903835 A CN106903835 A CN 106903835A
- Authority
- CN
- China
- Prior art keywords
- injection
- raw material
- molding process
- injection molding
- pretreatment
- 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
- 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
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/06—Conditioning or physical treatment of the material to be shaped by drying
-
- 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
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0084—General arrangement or lay-out of plants
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Producing Shaped Articles From Materials (AREA)
Abstract
The present invention provides a kind of injection molding process, comprises the following steps：Raw material crushing, raw material screening, raw material mixing, dried process, isothermal holding, adapted to injection system pretreatment, injection mold pretreatment, raw material plasticizing, raw material injection, pressurize, cooling shaping, the demoulding；The processing step of injection molding process of the present invention is simple, is easy to implement, and cost is relatively low, and short molding cycle, final product quality is high.
Description
Technical field
The present invention relates to a kind of injection molding art, more particularly to a kind of plastics molding process.
Background technology
Injection is a kind of method that industrial products produce moulding, refers at a certain temperature, by screw rod
The plastic material that melts completely of stirring, die cavity is injected with high pressure, through cooling and solidifying after, obtain products formed
Method.The method is applied to the batch production of complex-shaped part, is one of important processing method.
Injection can dispensing molding die platen press and casting die, process of injection molding is broadly divided into following 6
The individual stage：Matched moulds, injection, pressurize, cooling, die sinking, product take out.In injection moulding process, modeling
The determinant of materials and parts shaping quality includes：Temperature control, Stress control, molding cycle and reasonable work
The factors such as sequence step.
There is certain defect in existing Shooting Technique, such as processing step is complicated, all in implementation process
The defect such as the phase is long and cost is high, finished product it is of low quality, it is difficult to meet people and require making.
The content of the invention
(1) technical problem to be solved
The technical problem to be solved in the present invention be to provide a kind of processing step it is simple, with short production cycle, into
The injection molding process that quality is high, production cost is relatively low.
(2) technical scheme
In order to solve the above technical problems, the present invention provides a kind of injection molding process, comprise the following steps：
Raw material crushing, raw material screening, raw material mixing, dried process, isothermal holding, adapted to injection system pretreatment,
Injection mold pretreatment, raw material plasticizing, raw material injection, pressurize, cooling shaping, the demoulding；The original
Material screen choosing is carried out by the sieve that sieve diameter is 0.4~0.56cm；The dried process is in temperature
Degree control is carried out in 130 DEG C of baking box, and baking time is 0.5H；The adapted to injection system pretreatment
Hot flow path in adapted to injection system is heated to 180 DEG C~220 DEG C；The injection mold pretreatment is to note
Mould is heated to 56 DEG C~74 DEG C；The cooling shaping is cooled down by way of water-cooled, cooling
The time of shaping is 42s.
Further, the isothermal holding is carried out in the environment of 96 DEG C, and soaking time is 1.5H.
Further, the injection pressure of the raw material injection is 75kg/cm2。
Further, the retention time of the injection pressure be not less than 0.7s.
Further, the pressure of the pressurize is 50g/cm2, the dwell time is 3s.
(3) beneficial effect
The processing step of injection molding process of the present invention is simple, with short production cycle, final product quality is high, raw
Produce cost relatively low.
Specific embodiment
The present invention provides a kind of injection molding process, and specific processing step is as follows：Raw material is crushed, original
Material screen choosing, raw material mixing, dried process, isothermal holding, adapted to injection system pretreatment, injection mold are pre-
Treatment, raw material plasticizing, raw material injection, pressurize, cooling shaping, the demoulding.
Wherein raw material screening is carried out by the sieve that sieve diameter is 0.4~0.56cm；Dried process
It is to be carried out in 130 DEG C of baking box in temperature control, baking time is 0.5H；Adapted to injection system is located in advance
Hot flow path in adapted to injection system is heated to 180 DEG C~220 DEG C by reason；Injection mold pretreatment be by
Injection mold is heated to 56 DEG C~74 DEG C；The cooling shaping is cooled down by way of water-cooled, cold
But the time being molded is 42s.
Isothermal holding is carried out in the environment of 96 DEG C, and soaking time is 1.5H；The note of raw material injection
Injection pressure is 75kg/cm2, even injection；The retention time of injection pressure is not less than 0.7s；Pressurize
Pressure is 50g/cm2, the dwell time is 3s；
Visual examination to be carried out to the product after injection moulding, if having fragmentation, scratch, finish not
Good the problems such as.
The above is only the preferred embodiment of the present invention, it is noted that for the art
For those of ordinary skill, on the premise of the technology of the present invention principle is not departed from, can also make some
Improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of injection molding process, it is characterised in that comprise the following steps：Raw material crushing,
Raw material screening, raw material mixing, dried process, isothermal holding, adapted to injection system pretreatment, injection
Mould pretreatment, raw material plasticizing, raw material injection, pressurize, cooling shaping, the demoulding；The original
Material screen choosing is carried out by the sieve that sieve diameter is 0.4~0.56cm；The dried process
It is to be carried out in 130 DEG C of baking box in temperature control, baking time is 0.5H；The injection
Hot flow path in adapted to injection system is heated to 180 DEG C~220 DEG C by system pretreatment；The injection mould
Tool pretreatment is that injection mold is heated into 56 DEG C~74 DEG C；The cooling shaping is by water-cooled
Mode is cooled down, and the time of cooling shaping is 42s.
2. injection molding process as claimed in claim 1, it is characterised in that：The insulation
Treatment is carried out in the environment of 96 DEG C, and soaking time is 1.5H.
3. injection molding process as claimed in claim 1, it is characterised in that：The raw material
The injection pressure of injection is 75kg/cm2。
4. injection molding process as claimed in claim 3, it is characterised in that：The injection
The retention time of pressure is not less than 0.7s.
5. injection molding process as claimed in claim 1, it is characterised in that：The pressurize
Pressure be 50g/cm2, the dwell time is 3s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510981204.2A CN106903835A (en) | 2015-12-23 | 2015-12-23 | A kind of injection molding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510981204.2A CN106903835A (en) | 2015-12-23 | 2015-12-23 | A kind of injection molding process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106903835A true CN106903835A (en) | 2017-06-30 |
Family
ID=59199916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510981204.2A Pending CN106903835A (en) | 2015-12-23 | 2015-12-23 | A kind of injection molding process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106903835A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109664460A (en) * | 2018-12-26 | 2019-04-23 | 苏州敏煌精密电子科技有限公司 | A kind of injection molding process of precise injection mould |
| CN110216830A (en) * | 2019-06-06 | 2019-09-10 | 何嘉乐 | A kind of intelligence plastic flower process units |
| CN112721032A (en) * | 2020-12-15 | 2021-04-30 | 河源市程锦模具塑胶制品有限公司 | Multicolor injection molding system and multicolor injection molding process |
-
2015
- 2015-12-23 CN CN201510981204.2A patent/CN106903835A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109664460A (en) * | 2018-12-26 | 2019-04-23 | 苏州敏煌精密电子科技有限公司 | A kind of injection molding process of precise injection mould |
| CN110216830A (en) * | 2019-06-06 | 2019-09-10 | 何嘉乐 | A kind of intelligence plastic flower process units |
| CN112721032A (en) * | 2020-12-15 | 2021-04-30 | 河源市程锦模具塑胶制品有限公司 | Multicolor injection molding system and multicolor injection molding process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170630 |
|
| WD01 | Invention patent application deemed withdrawn after publication |