CN103121256A - Process for molding heat-preserving polystyrene foam plastic products - Google Patents
Process for molding heat-preserving polystyrene foam plastic products Download PDFInfo
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- CN103121256A CN103121256A CN2011103677922A CN201110367792A CN103121256A CN 103121256 A CN103121256 A CN 103121256A CN 2011103677922 A CN2011103677922 A CN 2011103677922A CN 201110367792 A CN201110367792 A CN 201110367792A CN 103121256 A CN103121256 A CN 103121256A
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- polystyrene foam
- bead
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- plastic pipe
- prefoam
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Abstract
The invention discloses a process for molding heat-preserving polystyrene foam plastic products and belongs to the technical field of foam plastic molding. The process includes three steps: foaming, curing and molding. The three-step process for molding the heat-preserving polystyrene foam plastic products is large in foaming ratio and good in product quality, joint faces of the molded heat-preserving polystyrene foam plastic products are positioned at vertical wall joints and free of air leakage, and the heat-preserving polystyrene foam plastic products are good in welding joint and attractive in appearance.
Description
Technical field
The present invention relates to a kind of moulding process of polystyrene foam insulating plastic pipe goods, belong to the foam molding technical field.
Background technology
The foam thermal insulation plastics are widely used on building, no matter are on metope or floor, because its thermal conductivity factor is low, so can make the temperature of interior of building keep cool in summer and warm in winter.Present insulation foamed plastic generally adopts one-step method to make, but the expansion ratio of one-step method is little, and the quality of product is also bad.
Summary of the invention
In view of the defective that prior art exists, the purpose of this invention is to provide the moulding process of the polystyrene foam insulating plastic pipe that a kind of expansion ratio is high, parts quality is good.
For achieving the above object, the technology used in the present invention solution is: a kind of moulding process of polystyrene foam insulating plastic pipe goods comprises three operations, first step prefoam, second step slaking, the 3rd one-step forming.
Described prefoam, that the polystyrene foam insulating plastic pipe particle that will deposit 24 hours is put into the vacuum foam machine, then be foamed into the larger bead of diameter, directly pass into the prefoam machine barrel with steam, bead softens at 95 ℃, and under agitation blowing agent gasification is expanded, and steam constantly infiltrates in abscess simultaneously, the plastic pellet volume is increased, make the density of plastic pellet be reduced to 0.01g/cm
3Below.
Described slaking, refer to that the residual blowing agent of bead after prefoam and the water vapor condensation of infiltration become liquid, then form negative pressure, and bead air amount gradually in the process that stores, internal and external pressure balance, but the interior residual blowing agent of bead is overflowed in a large number, therefore will strictly control the slaking storage time.、
Compression molding is adopted in described moulding, and the prefoam bead is full of mold cavity, pass into steam, bead is heated in 40s, softens, and the blowing agent that the while inside particles is residual and the air of suction are heated and jointly expand, pressure greater than external steam, particle further expands and is full of die cavity, and is fused into mutually monoblock, forms the insulation foamed plastic goods identical with the mold cavity shape, then lead to the cold water cooling and shaping, goods are taken out in die sinking.
The inside lock of described polystyrene foam insulating plastic pipe goods adopts fillet excessive, and wall thickness is 10mm, and radius of corner is 3.0mm.
The die joint of described polystyrene foam insulating plastic pipe goods is placed on the vertical wall joint of goods.
The present invention adopts three-step approach moulding polystyrene foam insulating plastic pipe product, and expansion ratio is large, and parts quality is good, and die joint is in the vertical wall joint of goods, and die joint can not leak gas, and welding is good, surface aesthetic.
The specific embodiment
A kind of moulding process of polystyrene foam insulating plastic pipe goods comprises three operations, first step prefoam, second step slaking, the 3rd one-step forming.
Described prefoam, that the polystyrene foam insulating plastic pipe particle that will deposit 24 hours is put into the vacuum foam machine, then be foamed into the larger bead of diameter, directly pass into the prefoam machine barrel with steam, bead softens at 95 ℃, and under agitation blowing agent gasification is expanded, and steam constantly infiltrates in abscess simultaneously, the plastic pellet volume is increased, make the density of plastic pellet be reduced to 0.01g/cm
3Below.
Described slaking, refer to that the residual blowing agent of bead after prefoam and the water vapor condensation of infiltration become liquid, then form negative pressure, and bead air amount gradually in the process that stores, internal and external pressure balance, but the interior residual blowing agent of bead is overflowed in a large number, therefore will strictly control the slaking storage time.、
Compression molding is adopted in described moulding, and the prefoam bead is full of mold cavity, pass into steam, bead is heated in 40s, softens, and the blowing agent that the while inside particles is residual and the air of suction are heated and jointly expand, pressure greater than external steam, particle further expands and is full of die cavity, and is fused into mutually monoblock, forms the insulation foamed plastic goods identical with the mold cavity shape, then lead to the cold water cooling and shaping, goods are taken out in die sinking.
The inside lock of described polystyrene foam insulating plastic pipe goods adopts fillet excessive, and wall thickness is 10mm, and radius of corner is 3.0mm.
The die joint of described polystyrene foam insulating plastic pipe goods is placed on the vertical wall joint of goods.
Claims (3)
1. the moulding process of polystyrene foam insulating plastic pipe goods, is characterized in that comprising three operations, first step prefoam, and the second step slaking, the 3rd one-step forming:
Described prefoam, that the polystyrene foam insulating plastic pipe particle that will deposit 24 hours is put into the vacuum foam machine, then be foamed into the larger bead of diameter, directly pass into the prefoam machine barrel with steam, bead softens at 95 ℃, and under agitation blowing agent gasification is expanded, and steam constantly infiltrates in abscess simultaneously, the plastic pellet volume is increased, make the density of plastic pellet be reduced to 0.01g/cm
3Below;
Described slaking, refer to that the residual blowing agent of bead after prefoam and the water vapor condensation of infiltration become liquid, then form negative pressure, and bead air amount gradually in the process that stores, internal and external pressure balance, but the interior residual blowing agent of bead is overflowed in a large number, therefore will strictly control the slaking storage time;
Described moulding, adopt compression molding, the prefoam bead is full of mold cavity, pass into steam, bead is heated in 40s, softens, the blowing agent that the while inside particles is residual and the air of suction are heated and jointly expand, and greater than the pressure of external steam, particle further expands and is full of die cavity, and be fused into mutually monoblock, form the insulation foamed plastic goods identical with the mold cavity shape, then lead to the cold water cooling and shaping, goods are taken out in die sinking.
2. the moulding process of a kind of polystyrene foam insulating plastic pipe goods according to claim 1, is characterized in that the inside lock of described polystyrene foam insulating plastic pipe goods adopts fillet excessive, and wall thickness is 10mm, and radius of corner is 3.0mm.
3. the moulding process of a kind of polystyrene foam insulating plastic pipe goods according to claim 1, is characterized in that the die joint of described polystyrene foam insulating plastic pipe goods is placed on the vertical wall joint of goods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103677922A CN103121256A (en) | 2011-11-18 | 2011-11-18 | Process for molding heat-preserving polystyrene foam plastic products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103677922A CN103121256A (en) | 2011-11-18 | 2011-11-18 | Process for molding heat-preserving polystyrene foam plastic products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103121256A true CN103121256A (en) | 2013-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103677922A Pending CN103121256A (en) | 2011-11-18 | 2011-11-18 | Process for molding heat-preserving polystyrene foam plastic products |
Country Status (1)
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| CN (1) | CN103121256A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105252697A (en) * | 2015-10-28 | 2016-01-20 | 界首市兴安塑料制品有限公司 | Foam product capable of being rapidly degraded and production technology of foam product |
| CN106079219A (en) * | 2016-06-08 | 2016-11-09 | 惠州景华包装制品有限公司 | A kind of eps foam packing crates production technology |
| CN107584777A (en) * | 2017-06-05 | 2018-01-16 | 安徽宏远机械制造有限公司 | A kind of central air-conditioning plate moulding foam forming method and its automation process |
| CN108384132A (en) * | 2018-03-24 | 2018-08-10 | 青岛文宝泡塑包装有限公司 | Polystyrene foam and its preparation process |
| CN109233233A (en) * | 2018-08-23 | 2019-01-18 | 惠州市顺利包装制品有限公司 | A kind of easy breakdown type foamed plastics and production technology |
| CN109879654A (en) * | 2019-01-02 | 2019-06-14 | 上海圣奎塑业有限公司 | Insulation board feedstock composition and insulation board |
| CN110962363A (en) * | 2019-12-24 | 2020-04-07 | 刘荷花 | Plastic foam packaging forming processing method |
| CN111406687A (en) * | 2020-03-27 | 2020-07-14 | 江苏聚强电子科技有限公司 | Constant floating ball filled with foamed polystyrene and used for mariculture and production method thereof |
| CN112936703A (en) * | 2021-01-25 | 2021-06-11 | 芜湖市洪源新材料有限公司 | Foam forming process |
| CN112959703A (en) * | 2021-03-10 | 2021-06-15 | 青岛荣发保温材料有限公司 | Preparation method of EPS foam packing box |
| CN113001865A (en) * | 2021-03-21 | 2021-06-22 | 重庆同力塑料制品有限公司 | Steam equipment used in EPS foam board forming operation |
| CN114262461A (en) * | 2021-12-18 | 2022-04-01 | 秦发伟 | Method for producing expandable polystyrene beads and method for producing foamed plastic using the beads |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07108554A (en) * | 1993-10-14 | 1995-04-25 | Sumitomo Heavy Ind Ltd | Method and device for foam molding |
| CN2413893Y (en) * | 2000-04-17 | 2001-01-10 | 郭安民 | Computer controlled vertical type foaming machine for ultra-large diameter products |
| CN1493414A (en) * | 2002-10-28 | 2004-05-05 | 王玉和 | Method of casting loading machine large speed changing box body using vanishing mould |
-
2011
- 2011-11-18 CN CN2011103677922A patent/CN103121256A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07108554A (en) * | 1993-10-14 | 1995-04-25 | Sumitomo Heavy Ind Ltd | Method and device for foam molding |
| CN2413893Y (en) * | 2000-04-17 | 2001-01-10 | 郭安民 | Computer controlled vertical type foaming machine for ultra-large diameter products |
| CN1493414A (en) * | 2002-10-28 | 2004-05-05 | 王玉和 | Method of casting loading machine large speed changing box body using vanishing mould |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105252697A (en) * | 2015-10-28 | 2016-01-20 | 界首市兴安塑料制品有限公司 | Foam product capable of being rapidly degraded and production technology of foam product |
| CN106079219A (en) * | 2016-06-08 | 2016-11-09 | 惠州景华包装制品有限公司 | A kind of eps foam packing crates production technology |
| CN107584777A (en) * | 2017-06-05 | 2018-01-16 | 安徽宏远机械制造有限公司 | A kind of central air-conditioning plate moulding foam forming method and its automation process |
| CN108384132A (en) * | 2018-03-24 | 2018-08-10 | 青岛文宝泡塑包装有限公司 | Polystyrene foam and its preparation process |
| CN109233233A (en) * | 2018-08-23 | 2019-01-18 | 惠州市顺利包装制品有限公司 | A kind of easy breakdown type foamed plastics and production technology |
| CN109879654A (en) * | 2019-01-02 | 2019-06-14 | 上海圣奎塑业有限公司 | Insulation board feedstock composition and insulation board |
| CN110962363A (en) * | 2019-12-24 | 2020-04-07 | 刘荷花 | Plastic foam packaging forming processing method |
| CN111406687A (en) * | 2020-03-27 | 2020-07-14 | 江苏聚强电子科技有限公司 | Constant floating ball filled with foamed polystyrene and used for mariculture and production method thereof |
| CN112936703A (en) * | 2021-01-25 | 2021-06-11 | 芜湖市洪源新材料有限公司 | Foam forming process |
| CN112959703A (en) * | 2021-03-10 | 2021-06-15 | 青岛荣发保温材料有限公司 | Preparation method of EPS foam packing box |
| CN113001865A (en) * | 2021-03-21 | 2021-06-22 | 重庆同力塑料制品有限公司 | Steam equipment used in EPS foam board forming operation |
| CN114262461A (en) * | 2021-12-18 | 2022-04-01 | 秦发伟 | Method for producing expandable polystyrene beads and method for producing foamed plastic using the beads |
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Application publication date: 20130529 |