CN106079217B - A kind of EPS infrared rays pre-expansion process - Google Patents
A kind of EPS infrared rays pre-expansion process Download PDFInfo
- Publication number
- CN106079217B CN106079217B CN201610402247.5A CN201610402247A CN106079217B CN 106079217 B CN106079217 B CN 106079217B CN 201610402247 A CN201610402247 A CN 201610402247A CN 106079217 B CN106079217 B CN 106079217B
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- CN
- China
- Prior art keywords
- prefoam
- degrees celsius
- raw material
- foaming machine
- eps
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000005187 foaming Methods 0.000 claims abstract description 48
- 239000002994 raw material Substances 0.000 claims abstract description 35
- 230000005855 radiation Effects 0.000 claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 9
- 238000002791 soaking Methods 0.000 claims abstract description 7
- 230000036760 body temperature Effects 0.000 claims description 6
- 239000002245 particle Substances 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 6
- 239000011324 bead Substances 0.000 description 6
- 238000007599 discharging Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 229920006248 expandable polystyrene Polymers 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3415—Heating or cooling
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0822—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using IR radiation
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Toxicology (AREA)
- Physics & Mathematics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The present invention discloses a kind of EPS infrared rays pre-expansion process, including：Choose raw materials of the Dragon King B SB as prefoam；8~9kg of raw material is put into, and sets pre- hair temperature as 110 degrees Celsius；It waits for 1~2 second, keeps raw material substantially stabilized；It is 130 degrees Celsius~150 degrees Celsius to be passed through temperature, and pressure is the dry saturated steam of 0.5Mpa~0.6Mpa, and pre-heating temperature elevation is carried out to raw material；Infrared radiation is carried out to raw material；After completing infrared radiation, it is 110 degrees Celsius to keep temperature, and soaking time is 1~2 second；Dragon King B SB complete prefoam, complete to discharge after the Dragon King B SB after prefoam stand 2~3 seconds.The invention has the advantages that：It is exothermal infrared continual and steady easily controllable；Expanded particle be heated evenly will not hot-spot, cause granular size to differ；Infrared ray foaming heat transmits from inside to outside, and it is efficient to be different from heating process from outside to inside, preheating when steam heats.
Description
Technical field
The present invention relates to expandable polystyrene product production fields, and in particular to a kind of EPS infrared rays pre-expansion process.
Background technology
Domestic and international EPS (expandable polystyrenes at present：Expandable Polystyrene) pre-expansion process generally adopts
The EPS beads containing foaming agent are slowly heated to 90 DEG C or more, EPS beads during prefoam with steam foamable
Start to soften, the pentane in EPS beads is made EPS beads expand by thermal evaporation generation pressure, and forms closed pore, the bead after pre- hair
The thickness of a diameter of 80-150mm, every cubic metre 0-55 ten thousand minute bubbles, cell wall only have 1-2 μm, but due to steam liter
Wen Hou, non-uniform temperature in unit area, foam volume is uneven, causes the consistency of expansion ratio poor.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of EPS infrared rays pre-expansion process.
Present invention is disclosed a kind of EPS infrared rays pre-expansion process comprising following steps：
Step S1 chooses raw materials of the Dragon King B-SB as prefoam；
Step S2 puts into Dragon King B-SB 8~9kg of raw material into the cylinder body of pre-foaming machine, and sets the pre- hair of pre-foaming machine
Temperature is 110 degrees Celsius；
Step S3 after the completion of feeding intake, waits for 1~2 second, keeps raw material substantially stabilized in the cylinder body of pre-foaming machine；
Step S4, be passed through into pre-foaming machine temperature be 130 degrees Celsius~150 degrees Celsius, pressure be 0.5Mpa~
The dry saturated steam of 0.6Mpa carries out pre-heating temperature elevation to raw material, and the pre-heating temperature elevation time is 2 seconds；
Step S5 carries out infrared radiation to raw material, wherein the time of infrared radiation is 12~15 seconds；
Step S6, after completing infrared radiation, it is 110 degrees Celsius to keep pre-foaming machine cylinder body temperature, soaking time 1
~2 seconds；
Step S7, Dragon King B-SB complete prefoam, and pre-foaming machine is stopped, and complete the Dragon King B-SB after prefoam pre-
It discharges after standing 2~3 seconds in the cylinder body of foaming machine, wherein after Dragon King B-SB completes prefoam, pre- density of sending out is 13~26g/L.
According to an embodiment of the present invention, in above-mentioned EPS infrared rays pre-expansion process：
In step S4, the temperature of dry saturated steam is preferably 140 degrees Celsius, and pressure is preferably 0.55Ma.
According to an embodiment of the present invention, in above-mentioned EPS infrared rays pre-expansion process：
In step S5, the time of infrared radiation is preferably 14 seconds.
Compared with prior art, the present invention can be obtained including following technique effect：
1, exothermal infrared continual and steady easily controllable, it foams better than steam uncontrolled.
2, infrared ray foam when, expanded particle be heated evenly will not hot-spot, cause granular size to differ.
3, infrared ray foaming is because being inter-molecular collisions friction generation heat, so production efficiency is high, biography from inside to outside
Pass heating process from outside to inside when process significant difference is heated with steam.
Description of the drawings
Attached drawing described herein is used for providing further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please do not constitute the improper restriction to the application for explaining the application.In the accompanying drawings：
Fig. 1 is the flow diagram of EPS infrared ray pre-expansion process in the embodiment of the present invention.
Specific implementation mode
Multiple embodiments of the present invention, as clearly stated, the details in many practices will be disclosed with schema below
It will be explained in the following description.It should be appreciated, however, that the details in these practices is not applied to limit the present invention.Also
It is to say, in some embodiments of the present invention, the details in these practices is non-essential.
The present invention is about a kind of design of EPS infrared rays pre-expansion process, this EPS infrared rays pre-expansion process can answer
In manufacture craft for eps foam finished product.In the present embodiment, EPS infrared ray pre-expansion process concrete technologies are as follows：
Fig. 1 is the flow diagram of EPS infrared rays pre-expansion process of the present invention.As shown, EPS infrared ray prefoam works
Skill includes the following steps：
Step S1 chooses raw materials of the Dragon King B-SB as prefoam；
Step S2 puts into Dragon King B-SB 8~9kg of raw material into the cylinder body of pre-foaming machine, and sets the pre- hair of pre-foaming machine
Temperature is 110 degrees Celsius；
Step S3 after the completion of feeding intake, waits for 1~2 second, keeps raw material substantially stabilized in the cylinder body of pre-foaming machine；
Step S4, be passed through into pre-foaming machine temperature be 130 degrees Celsius~150 degrees Celsius, pressure be 0.5Mpa~
The dry saturated steam of 0.6Mpa carries out pre-heating temperature elevation to raw material, and the pre-heating temperature elevation time is 2 seconds；
Step S5 carries out infrared radiation to raw material, wherein the time of infrared radiation is 12~15 seconds；
Step S6, after completing infrared radiation, it is 110 degrees Celsius to keep pre-foaming machine cylinder body temperature, soaking time 1
~2 seconds；
Step S7, Dragon King B-SB complete prefoam, and pre-foaming machine is stopped, and complete the Dragon King B-SB after prefoam pre-
It discharges after standing 2~3 seconds in the cylinder body of foaming machine, wherein after Dragon King B-SB completes prefoam, pre- density of sending out is 13~26g/L.
In preference, in step S4, the temperature of dry saturated steam is preferably 140 degrees Celsius, and pressure is preferably 0.55Ma.Step
In rapid S5, the time of infrared radiation is preferably 14 seconds.
To make to be divided into the tool of three embodiments further description EPS infrared ray pre-expansion process below more in understanding
Body step and its caused benefit.
Embodiment one：
EPS infrared ray pre-expansion process includes the following steps：
Step S1 chooses raw materials of the Dragon King B-SB as prefoam；
Step S2 puts into Dragon King B-SB raw material 8kg into the cylinder body of pre-foaming machine, and sets the pre- hair temperature of pre-foaming machine
It it is 110 degrees Celsius, wherein Dragon King B-SB is delivered in the cylinder body of pre-foaming machine, the required feeding time of feeder is 30
Second；
Step S3 after the completion of feeding intake, waits for 1 second, keeps raw material substantially stabilized in the cylinder body of pre-foaming machine；
Step S4, it is 130 degrees Celsius that temperature is passed through into pre-foaming machine, and pressure is the dry saturated steam of 0.5Mpa, to original
Material carries out pre-heating temperature elevation, and the pre-heating temperature elevation time is 2 seconds；
Step S5 carries out infrared radiation to raw material, wherein the time of infrared radiation is 12 seconds；
Step S6, after completing infrared radiation, it is 110 degrees Celsius to keep pre-foaming machine cylinder body temperature, soaking time 1
Second；
Step S7, Dragon King B-SB complete prefoam, and pre-foaming machine is stopped, and complete the Dragon King B-SB after prefoam pre-
It discharges after standing 2 seconds in the cylinder body of foaming machine, wherein after Dragon King B-SB completes prefoam, pre- density of sending out is 20g/L；Wherein, go out
Expect that the time is 16 seconds, after discharging, waits for 1 second, the Dragon King's B-SB raw materials for completing prefoam enter the next step.
Above-mentioned EPS infrared rays pre-expansion process is completed, the whole cycle time is about 90 seconds.
Embodiment two：
EPS infrared ray pre-expansion process includes the following steps：
Step S1 chooses raw materials of the Dragon King B-SB as prefoam；
Step S2 puts into Dragon King B-SB raw material 8.5kg into the cylinder body of pre-foaming machine, and sets the pre- hair temperature of pre-foaming machine
Degree is 110 degrees Celsius, wherein Dragon King B-SB is delivered in the cylinder body of pre-foaming machine, the required feeding time of feeder is
32 seconds；
Step S3 after the completion of feeding intake, waits for 1.5 seconds, keeps raw material substantially stabilized in the cylinder body of pre-foaming machine；
Step S4, it is 140 degrees Celsius that temperature is passed through into pre-foaming machine, and pressure is the dry saturated steam of 0.55Mpa, to original
Material carries out pre-heating temperature elevation, and the pre-heating temperature elevation time is 2 seconds；
Step S5 carries out infrared radiation to raw material, wherein the time of infrared radiation is 14 seconds；
Step S6, after completing infrared radiation, it is 110 degrees Celsius to keep pre-foaming machine cylinder body temperature, and soaking time is
1.5 the second；
Step S7, Dragon King B-SB complete prefoam, and pre-foaming machine is stopped, and complete the Dragon King B-SB after prefoam pre-
It discharges after standing 2.5 seconds in the cylinder body of foaming machine, wherein after Dragon King B-SB completes prefoam, pre- density of sending out is 20g/L；Wherein,
Discharging time is 18 seconds, after discharging, is waited for 1 second, the Dragon King's B-SB raw materials for completing prefoam enter the next step.
Above-mentioned EPS infrared rays pre-expansion process is completed, the whole cycle time is about 95 seconds.
Embodiment three：
EPS infrared ray pre-expansion process includes the following steps：
Step S1 chooses raw materials of the Dragon King B-SB as prefoam；
Step S2 puts into Dragon King B-SB raw material 9kg into the cylinder body of pre-foaming machine, and sets the pre- hair temperature of pre-foaming machine
It it is 110 degrees Celsius, wherein Dragon King B-SB is delivered in the cylinder body of pre-foaming machine, the required feeding time of feeder is 35
Second；
Step S3 after the completion of feeding intake, waits for 2 seconds, keeps raw material substantially stabilized in the cylinder body of pre-foaming machine；
Step S4, it is 150 degrees Celsius that temperature is passed through into pre-foaming machine, and pressure is the dry saturated steam of 0.6Mpa, to original
Material carries out pre-heating temperature elevation, and the pre-heating temperature elevation time is 2 seconds；
Step S5 carries out infrared radiation to raw material, wherein the time of infrared radiation is 15 seconds；
Step S6, after completing infrared radiation, it is 110 degrees Celsius to keep pre-foaming machine cylinder body temperature, soaking time 2
Second；
Step S7, Dragon King B-SB complete prefoam, and pre-foaming machine is stopped, and complete the Dragon King B-SB after prefoam pre-
It discharges after standing 3 seconds in the cylinder body of foaming machine, wherein after Dragon King B-SB completes prefoam, pre- density of sending out is 20g/L, wherein is gone out
Expect that the time is 20 seconds, after discharging, waits for 1 second, the Dragon King's B-SB raw materials for completing prefoam enter the next step.
Above-mentioned EPS infrared rays pre-expansion process is completed, the whole cycle time is about 100 seconds.
Pre-expansion process is heated relative to conventional high-temperature steam, the EPS infrared ray pre-expansion process in the present invention is using red
UV radiation, the vibration frequency of infrared ray (far-infrared band) closer to substance frequency to the resonance of releaser, make particle
Internal pentane can expanded by heating be to achieve the purpose that reaming expands rapidly, and infrared ray pre expansion technology is using exothermal infrared
Technology is utilized infrared radiation and generates even heat, is stable and easy to control, and pentane after reaming expansion is not easy that bead is made to pop
The advantages of, on the one hand so that pre-expansion process is more easy to control with respect to conventional high-temperature steam heating pre-expansion process；On the other hand, red
Outside line prefoam, expanded particle are heated evenly, and granular size is almost the same after foaming；In another aspect, infrared ray foaming is internal
Molecular collision friction generates heat, the transmittance process of heat from inside to outside, hence it is evident that is different from when high-temperature steam heats from outside to inside
Heating process, prefoam is efficient.
The upper only embodiments of the present invention, are not intended to restrict the invention.For those skilled in the art
For, the invention may be variously modified and varied.It is all in spirit and principles of the present invention made by any modification, equivalent
Replace, improve etc., it should all be included within scope of the presently claimed invention.
Claims (3)
1. a kind of EPS infrared rays pre-expansion process, which is characterized in that include the following steps：
Step S1 chooses raw materials of the Dragon King B-SB as prefoam；
Step S2 puts into Dragon King B-SB 8~9kg of raw material into the cylinder body of pre-foaming machine, and sets the pre- hair temperature of pre-foaming machine
It is 110 degrees Celsius；
Step S3 after the completion of feeding intake, waits for 1~2 second, keeps raw material substantially stabilized in the cylinder body of pre-foaming machine；
Step S4, it is 130 degrees Celsius~150 degrees Celsius that temperature is passed through into pre-foaming machine, and pressure is 0.5Mpa~0.6Mpa's
Dry saturated steam carries out pre-heating temperature elevation to raw material, and the pre-heating temperature elevation time is 2 seconds；
Step S5 carries out infrared radiation to raw material, wherein the time of infrared radiation is 12~15 seconds；
Step S6, after completing infrared radiation, it is 110 degrees Celsius to keep pre-foaming machine cylinder body temperature, and soaking time is 1~2
Second；
Step S7, Dragon King B-SB complete prefoam, and pre-foaming machine is stopped, and complete the Dragon King B-SB after prefoam in prefoam
It discharges after standing 2~3 seconds in the cylinder body of machine, wherein after Dragon King B-SB completes prefoam, pre- density of sending out is 13~26g/L.
2. EPS infrared rays pre-expansion process according to claim 1, which is characterized in that in the step S4, do saturation and steam
The temperature of vapour is preferably 140 degrees Celsius, and pressure is preferably 0.55Ma.
3. EPS infrared rays pre-expansion process according to claim 1 or 2, which is characterized in that infrared in the step S5
The time of beta radiation is preferably 14 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610402247.5A CN106079217B (en) | 2016-06-08 | 2016-06-08 | A kind of EPS infrared rays pre-expansion process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610402247.5A CN106079217B (en) | 2016-06-08 | 2016-06-08 | A kind of EPS infrared rays pre-expansion process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106079217A CN106079217A (en) | 2016-11-09 |
| CN106079217B true CN106079217B (en) | 2018-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610402247.5A Expired - Fee Related CN106079217B (en) | 2016-06-08 | 2016-06-08 | A kind of EPS infrared rays pre-expansion process |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109702949A (en) * | 2019-01-24 | 2019-05-03 | 安徽汉新环保科技有限公司 | A kind of preparation method of eps foam packing case |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3630930A1 (en) * | 1986-09-11 | 1988-03-24 | Roehm Gmbh | METHOD FOR PRODUCING A HARD FOAM BY MEANS OF A MICROWAVE OR HIGH FREQUENCY FIELD |
| EP0987291A1 (en) * | 1998-09-16 | 2000-03-22 | Shell Internationale Researchmaatschappij B.V. | Process for the preparation of expandable polyvinylarene particles |
| CN102389941B (en) * | 2011-11-08 | 2016-04-20 | 郭雷辰 | A kind of bubble mold sample preventing evaporative pattern foundry goods carbon defects and preparation method thereof |
| DE102013225132A1 (en) * | 2013-12-06 | 2015-06-11 | Evonik Industries Ag | Prefoaming of poly (meth) acrylimide particles for subsequent mold foaming in closed tools |
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| CN106079217A (en) | 2016-11-09 |
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Effective date of registration: 20200701 Address after: Room 110, No.8 Haile Road, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Deng Jinghao Address before: 516032 Guangdong province Huizhou city Huicheng district Overseas Industrial Base Tong Qiao Zhen Tong Lianfa Avenue South Patentee before: HUIZHOU JINGHUA PACKAGING PRODUCTS Co.,Ltd. |
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Effective date of registration: 20201118 Address after: Building 2 and building 4, No. 18, Xingang East Road, Liujiagang District, Fuqiao Town, Taicang City, Jiangsu Province Patentee after: TAICANG JUZHOU PLASTIC TECHNOLOGY Co.,Ltd. Address before: Room 110, No.8 Haile Road, Bao'an District, Shenzhen City, Guangdong Province Patentee before: Deng Jinghao |
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Granted publication date: 20180828 |