CN106079217A - A kind of EPS infrared ray pre-expansion process - Google Patents
A kind of EPS infrared ray pre-expansion process Download PDFInfo
- Publication number
- CN106079217A CN106079217A CN201610402247.5A CN201610402247A CN106079217A CN 106079217 A CN106079217 A CN 106079217A CN 201610402247 A CN201610402247 A CN 201610402247A CN 106079217 A CN106079217 A CN 106079217A
- Authority
- CN
- China
- Prior art keywords
- raw material
- prefoam
- temperature
- degrees celsius
- foaming machine
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000005187 foaming Methods 0.000 claims abstract description 50
- 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 21
- 238000007599 discharging Methods 0.000 claims abstract description 11
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 10
- 230000014759 maintenance of location Effects 0.000 claims abstract description 7
- 230000036760 body temperature Effects 0.000 claims description 6
- 238000010025 steaming Methods 0.000 claims 1
- 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
- 239000000463 material Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 229920006248 expandable polystyrene Polymers 0.000 description 3
- 239000006260 foam Substances 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material 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 open a kind of EPS infrared ray pre-expansion process of the present invention, including: choose the Dragon King B SB raw material as prefoam；Put into raw material 8～9kg, and set pre-temperature of sending out as 110 degrees Celsius；Wait 1～2 second, make raw material substantially stabilized；Being passed through temperature is 130 degrees Celsius～150 degrees Celsius, and pressure is the dry saturated steam of 0.5Mpa～0.6Mpa, and raw material is carried out pre-heating temperature elevation；Raw material is carried out infrared radiation；After completing infrared radiation, keeping temperature is 110 degrees Celsius, and temperature retention time is 1～2 second；Dragon King B SB completes prefoam, completes discharging after the Dragon King B SB after prefoam stands 2～3 seconds.Present invention have the advantage that exothermal infrared the most 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, is different from heating process from outside to inside when steam heats, and the pre-thermal efficiency is high.
Description
Technical field
The present invention relates to expandable polystyrene goods and make field, be specifically related to a kind of EPS infrared ray pre-expansion process.
Background technology
EPS (expandable polystyrene: Expandable Polystyrene) pre-expansion process is typically adopted the most both at home and abroad
Use steam foamable, during prefoam, the EPS beadlet containing foaming agent is slowly heated to more than 90 DEG C, EPS beadlet
Starting to soften, the pentane in EPS beadlet is made EPS beadlet expand by thermal evaporation generation pressure, and forms closed pore, the beadlet after pre-
A diameter of 80 150mm, every cubic metre of 0 55 ten thousand minute bubbles, the thickness of cell wall only has 12 μm, but due to steam liter
Wen Hou, non-uniform temperature in unit are, foam volume is uneven, and the concordance causing expansion ratio is poor.
Summary of the invention
For the deficiencies in the prior art, the present invention provides a kind of EPS infrared ray pre-expansion process.
Present invention is disclosed a kind of EPS infrared ray pre-expansion process, it comprises the steps:
Step S1, chooses the Dragon King B-SB raw material as prefoam；
Step S2, puts into Dragon King's B-SB raw material 8～9kg in the cylinder body of pre-foaming machine, and sets pre-of pre-foaming machine
Temperature is 110 degrees Celsius；
Step S3, after having fed intake, waits 1～2 second, makes raw material substantially stabilized in the cylinder body of pre-foaming machine；
Step S4, being passed through temperature in pre-foaming machine is 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, and wherein, the time of infrared radiation is 12～15 seconds；
Step S6, after completing infrared radiation, keeping pre-foaming machine cylinder body temperature is 110 degrees Celsius, and temperature retention time is 1
～2 seconds；
Step S7, Dragon King B-SB completes prefoam, and pre-foaming machine quits work, and completes the Dragon King B-SB after prefoam in advance
Discharging 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 ray 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 ray pre-expansion process:
In step S5, the time of infrared radiation is preferably 14 seconds.
Compared with prior art, the present invention can obtain and include techniques below effect:
1, exothermal infrared the most easily controllable, it is better than steam foaming uncontrolled.
2, infrared ray foaming time, 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
Heating process from outside to inside when the process of passing is clearly distinguished from heating with steam.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing further understanding of the present application, constitutes the part of the application, this Shen
Schematic description and description please is used for explaining the application, is not intended that the improper restriction to the application.In the accompanying drawings:
Fig. 1 is the schematic flow sheet of EPS infrared ray pre-expansion process in the embodiment of the present invention.
Detailed description of the invention
To schematically disclose multiple embodiments of the present invention, as clearly stated, the details in many practices below
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.The most just
Being to say, in the some embodiments of the present invention, the details in these practices is non-essential.
The present invention is to be related to the design of a kind of EPS infrared ray pre-expansion process, and this EPS infrared ray pre-expansion process can be answered
In the processing technology of eps foam finished product.In the present embodiment, EPS infrared ray pre-expansion process concrete technology is as follows:
Fig. 1 is the schematic flow sheet of EPS infrared ray pre-expansion process of the present invention.As it can be seen, EPS infrared ray prefoam work
Skill comprises the steps:
Step S1, chooses the Dragon King B-SB raw material as prefoam；
Step S2, puts into Dragon King's B-SB raw material 8～9kg in the cylinder body of pre-foaming machine, and sets pre-of pre-foaming machine
Temperature is 110 degrees Celsius；
Step S3, after having fed intake, waits 1～2 second, makes raw material substantially stabilized in the cylinder body of pre-foaming machine；
Step S4, being passed through temperature in pre-foaming machine is 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, and wherein, the time of infrared radiation is 12～15 seconds；
Step S6, after completing infrared radiation, keeping pre-foaming machine cylinder body temperature is 110 degrees Celsius, and temperature retention time is 1
～2 seconds；
Step S7, Dragon King B-SB completes prefoam, and pre-foaming machine quits work, and completes the Dragon King B-SB after prefoam in advance
Discharging 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.
For making more in understanding, below it is divided into three embodiments and further describes the tool of EPS infrared ray pre-expansion process
Body step and the benefit brought thereof.
Embodiment one:
EPS infrared ray pre-expansion process comprises the steps:
Step S1, chooses the Dragon King B-SB raw material as prefoam；
Step S2, puts into Dragon King B-SB raw material 8kg in the cylinder body of pre-foaming machine, and sets pre-temperature of pre-foaming machine
Being 110 degrees Celsius, wherein, be delivered in the cylinder body of pre-foaming machine by Dragon King B-SB, the feeding time required for feeder is 30
Second；
Step S3, after having fed intake, waits 1 second, makes raw material substantially stabilized in the cylinder body of pre-foaming machine；
Step S4, being passed through temperature in pre-foaming machine is 130 degrees Celsius, and pressure is the dry saturated steam of 0.5Mpa, to former
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, and wherein, the time of infrared radiation is 12 seconds；
Step S6, after completing infrared radiation, keeping pre-foaming machine cylinder body temperature is 110 degrees Celsius, and temperature retention time is 1
Second；
Step S7, Dragon King B-SB completes prefoam, and pre-foaming machine quits work, and completes the Dragon King B-SB after prefoam in advance
Discharging 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
The material time is 16 seconds, after discharging, waits 1 second, and the Dragon King's B-SB raw material completing prefoam enters next step operation.
Complete above-mentioned EPS infrared ray pre-expansion process, be about 90 seconds whole cycle time.
Embodiment two:
EPS infrared ray pre-expansion process comprises the steps:
Step S1, chooses the Dragon King B-SB raw material as prefoam；
Step S2, puts into Dragon King B-SB raw material 8.5kg in the cylinder body of pre-foaming machine, and sets pre-temperature of pre-foaming machine
Degree is 110 degrees Celsius, wherein, is delivered in the cylinder body of pre-foaming machine by Dragon King B-SB, and the feeding time required for feeder is
32 seconds；
Step S3, after having fed intake, waits 1.5 seconds, makes raw material substantially stabilized in the cylinder body of pre-foaming machine；
Step S4, being passed through temperature in pre-foaming machine is 140 degrees Celsius, and pressure is the dry saturated steam of 0.55Mpa, to former
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, and wherein, the time of infrared radiation is 14 seconds；
Step S6, after completing infrared radiation, keeping pre-foaming machine cylinder body temperature is 110 degrees Celsius, and temperature retention time is
1.5 the second；
Step S7, Dragon King B-SB completes prefoam, and pre-foaming machine quits work, and completes the Dragon King B-SB after prefoam in advance
Discharging 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, waits 1 second, and the Dragon King's B-SB raw material completing prefoam enters next step operation.
Complete above-mentioned EPS infrared ray pre-expansion process, be about 95 seconds whole cycle time.
Embodiment three:
EPS infrared ray pre-expansion process comprises the steps:
Step S1, chooses the Dragon King B-SB raw material as prefoam；
Step S2, puts into Dragon King B-SB raw material 9kg in the cylinder body of pre-foaming machine, and sets pre-temperature of pre-foaming machine
Being 110 degrees Celsius, wherein, be delivered in the cylinder body of pre-foaming machine by Dragon King B-SB, the feeding time required for feeder is 35
Second；
Step S3, after having fed intake, waits 2 seconds, makes raw material substantially stabilized in the cylinder body of pre-foaming machine；
Step S4, being passed through temperature in pre-foaming machine is 150 degrees Celsius, and pressure is the dry saturated steam of 0.6Mpa, to former
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, and wherein, the time of infrared radiation is 15 seconds；
Step S6, after completing infrared radiation, keeping pre-foaming machine cylinder body temperature is 110 degrees Celsius, and temperature retention time is 2
Second；
Step S7, Dragon King B-SB completes prefoam, and pre-foaming machine quits work, and completes the Dragon King B-SB after prefoam in advance
Discharging 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, goes out
The material time is 20 seconds, after discharging, waits 1 second, and the Dragon King's B-SB raw material completing prefoam enters next step operation.
Complete above-mentioned EPS infrared ray pre-expansion process, be about 100 seconds whole cycle time.
Heating pre-expansion process relative to conventional high-temperature steam, the EPS infrared ray pre-expansion process in the present invention uses red
UV radiation, the frequency of vibration of infrared ray (far-infrared band), closer to the frequency of material thus the resonance of releaser, makes particle
Internal pentane can rapidly expanded by heating thus reach the purpose that reaming expands, the employing of infrared ray pre expansion technology is exothermal infrared
Technology, make use of infrared ray radiation to produce even heat, is stable and easy to control, and pentane is difficult to make beadlet pop after reaming expands
Advantage, on the one hand make pre-expansion process relatively conventional high-temperature steam heating pre-expansion process more easy to control；On the other hand, red
Outside line prefoam, expanded particle is heated evenly, and after foaming, granular size is basically identical；Another further aspect, infrared ray foaming is internal
Molecular collision friction produce heat, heat transmittance process from inside to outside, hence it is evident that be different from high-temperature steam heating time from outside to inside
Heating process, prefoam efficiency is high.
Upper described only embodiments of the present invention, are not limited to the present invention.For those skilled in the art
For, the present invention can have various modifications and variations.All made in spirit and principles of the present invention any amendment, equivalent
Replacement, improvement etc., within all should being included in scope of the presently claimed invention.
Claims (3)
1. an EPS infrared ray pre-expansion process, it is characterised in that comprise the steps:
Step S1, chooses the Dragon King B-SB raw material as prefoam；
Step S2, puts into Dragon King's B-SB raw material 8～9kg in the cylinder body of pre-foaming machine, and sets pre-temperature of pre-foaming machine
It it is 110 degrees Celsius；
Step S3, after having fed intake, waits 1～2 second, makes raw material substantially stabilized in the cylinder body of pre-foaming machine；
Step S4, being passed through temperature in pre-foaming machine is 130 degrees Celsius～150 degrees Celsius, and pressure is 0.5Mpa's～0.6Mpa
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, and wherein, the time of infrared radiation is 12～15 seconds；
Step S6, after completing infrared radiation, keeping pre-foaming machine cylinder body temperature is 110 degrees Celsius, and temperature retention time is 1～2
Second；
Step S7, Dragon King B-SB completes prefoam, and pre-foaming machine quits work, and completes the Dragon King B-SB after prefoam in prefoam
Discharging 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.
EPS infrared ray pre-expansion process the most according to claim 1, it is characterised in that in described step S4, dry saturated steaming
The temperature of vapour is preferably 140 degrees Celsius, and pressure is preferably 0.55Ma.
EPS infrared ray pre-expansion process the most according to claim 1 and 2, it is characterised in that in described step S5, infrared
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 true CN106079217A (en) | 2016-11-09 |
| CN106079217B 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4740530A (en) * | 1986-09-11 | 1988-04-26 | Rohm Gmbh | Method for foaming synthetic resin bodies with microwave or high frequency energy |
| CN1317032A (en) * | 1998-09-16 | 2001-10-10 | 新星化学(国际)股份有限公司 | Process for preparation of expandable polyvinylarene particles |
| CN102389941A (en) * | 2011-11-08 | 2012-03-28 | 郭雷辰 | Foam plastics mould preventing carbon defect of lost foam casting and preparation method thereof |
| TW201538580A (en) * | 2013-12-06 | 2015-10-16 | Evonik Industries Ag | Prefoaming of poly(meth) acrylimide particles for subsequent foam moulding enclosed moulds |
-
2016
- 2016-06-08 CN CN201610402247.5A patent/CN106079217B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4740530A (en) * | 1986-09-11 | 1988-04-26 | Rohm Gmbh | Method for foaming synthetic resin bodies with microwave or high frequency energy |
| CN1317032A (en) * | 1998-09-16 | 2001-10-10 | 新星化学(国际)股份有限公司 | Process for preparation of expandable polyvinylarene particles |
| CN102389941A (en) * | 2011-11-08 | 2012-03-28 | 郭雷辰 | Foam plastics mould preventing carbon defect of lost foam casting and preparation method thereof |
| TW201538580A (en) * | 2013-12-06 | 2015-10-16 | Evonik Industries Ag | Prefoaming of poly(meth) acrylimide particles for subsequent foam moulding enclosed moulds |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| Publication number | Publication date |
|---|---|
| CN106079217B (en) | 2018-08-28 |
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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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