CN102643493A - Refrigerator door vertical column and co-extrusion forming process thereof - Google Patents
Refrigerator door vertical column and co-extrusion forming process thereof Download PDFInfo
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- CN102643493A CN102643493A CN201210140408XA CN201210140408A CN102643493A CN 102643493 A CN102643493 A CN 102643493A CN 201210140408X A CN201210140408X A CN 201210140408XA CN 201210140408 A CN201210140408 A CN 201210140408A CN 102643493 A CN102643493 A CN 102643493A
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- Refrigerator Housings (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a refrigerator door vertical column, which comprises the following components with contents: 50 parts of polyvinyl chloride (PVC) resin, 15 parts of calcium carbonate (CACO3), 2 parts of acrylics (ACR), 4.5 parts of chlorinated polyethylene (CPE), 4 parts of stabilizing agents, 0.3 parts of stearic acid, 0.4 parts of poly ethylene (PE) wax and 0.0015 parts of carbon black. The refrigerator door vertical column is formed by co-extrusion according to the formula. By adopting composite free -spraying compound co-extruding forming, the refrigerator door vertical column improves surface rigidness and anti-abrasion performance, simplifies manufacture procedures, reduces manufacture cost, and improves production and use performance.
Description
Technical field
The present invention relates to a kind of composite co-extruding plastic irregular profile technical field, relate in particular to a kind of refrigerator door column and coextrusion forming process thereof.
Background technology
Refrigerator is more and more general in daily life.In the refrigerator use, the daily opening and closing of refrigerator door are very frequent.In the prior art, the refrigerator door column generally adopts the spraying column, and its surface hardness is not high, and is not wear-resisting, in use fall lacquer easily, and the production process of spraying column is complicated, and price is quite higher.
Summary of the invention
Problem to the prior art existence; The objective of the invention is to propose a kind of refrigerator door column and coextrusion forming process thereof; The refrigerator door column adopts and exempts to spray the composite co-extruding moulding, has improved the surface hardness and the wear resistance of refrigerator door column, thereby has improved the production use properties.
For reaching this purpose, the present invention adopts following technical scheme:
A kind of refrigerator door column comprises following composition and content:
Polyvinyl chloride resin, 50 parts;
CACO3,15 parts;
ACR, 2 parts;
CPE, 4.5 parts;
Stablizer, 4 parts;
Triple Pressed Stearic Acid, 0.3 part;
PE wax, 0.4 part;
Carbon black, 0.0015 part;
Said refrigerator door column adopts above-mentioned prescription coextrusion mold.
A kind of coextrusion forming process of refrigerator door column comprises following operation:
Batching stirs, and prepares burden according to described composition of claim 1 and content, in the high-temperature stirring bucket, carries out high-temperature stirring and merges, and when temperature reaches 110-130 ℃, stops to accomplish high-temperature stirring; Carry out cooling and stirring at the cooling and stirring bucket then and merge, when temperature reaches 35-45 ℃, stop cooling and stirring;
Coextrusion mold: with the coextrusion mold in the coextrusion mold mould of the raw material after the above-mentioned stirring;
Vacuum water is cold formed: on the Vacuum shaping platform, carry out water-cooled shaping, its water supply pressure is not less than 0.3Pma, and water temperature is at 15 ± 3 ℃.
Preferably, in the batching agitating procedure, in the high-temperature stirring bucket, carry out high-temperature stirring and merge, when temperature reaches 120 ℃, stop to accomplish high-temperature stirring; Carry out cooling and stirring at the cooling and stirring bucket then and merge, when temperature reaches 40 ℃, stop cooling and stirring;
Excision forming: the length according to predetermined is cut, and obtains the refrigerator door column.
Based on disclosing of above technical scheme, the present invention possesses following beneficial effect:
A kind of refrigerator door column that the present invention proposes; Adopt the compound composite co-extruding moulding of exempting to spray, improved the surface hardness and the wear resistance of refrigerator door column, simplified the production process of refrigerator door column; Reduce the cost of manufacture of refrigerator door column, thereby improved the production use properties.
Description of drawings
Fig. 1 is the schematic flow sheet of the coextrusion forming process of a kind of refrigerator door column of proposing of the present invention.
Embodiment
Further specify technical scheme of the present invention below in conjunction with accompanying drawing and through embodiment:
The present invention proposes a kind of refrigerator door column,, comprise following composition and content:
Polyvinyl chloride resin, 50 parts;
CACO3,15 parts;
ACR, 2 parts;
CPE, 4.5 parts;
Stablizer, 4 parts;
Triple Pressed Stearic Acid, 0.3 part;
PE wax, 0.4 part;
Carbon black, 0.0015 part;
Said refrigerator door column adopts above-mentioned prescription coextrusion mold.
Based on the composition and the content of above-mentioned refrigerator door column, the present invention proposes a kind of coextrusion forming process of refrigerator door column, as shown in Figure 1, this technology comprises following operation:
Batching stirs, and prepares burden according to mentioned component and content, in the high-temperature stirring bucket, carries out high-temperature stirring and merges, and when temperature reaches 110-130 ℃, stops to accomplish high-temperature stirring; Carry out cooling and stirring at the cooling and stirring bucket then and merge, when temperature reaches 35-45 ℃, stop cooling and stirring;
Coextrusion mold: with the coextrusion mold in the coextrusion mold mould of the raw material after the above-mentioned stirring;
Vacuum water is cold formed: on the Vacuum shaping platform, carry out water-cooled shaping, water supply pressure is not less than 0.3Pma, and water temperature is at 15 ± 3 ℃;
Excision forming: the length according to predetermined is cut, and obtains the refrigerator door column.
A kind of refrigerator door column that the present invention proposes; Adopt the compound composite co-extruding moulding of exempting to spray, improved the surface hardness and the wear resistance of refrigerator door column, simplified the production process of refrigerator door column; Reduce the cost of manufacture of refrigerator door column, thereby improved the production use properties.
In the concrete moulding process of refrigerator door column, to doing further qualification in its molding procedure.
Batching agitating procedure:, required starting material are positioned over the special electronic weighing according to mentioned component and content; The starting material that configure are poured in the high-temperature stirring bucket gently, closed top pressure closure, 120 ℃ of preset temperatures are set, the start button switch gets into high-temperature stirring and merge state this moment; When the high-temperature stirring temperature arrives 120 ℃, start stop button immediately, high-temperature stirring finishes; The starting material that high-temperature stirring merges are clamp-oned the cooling and stirring bucket, 40 ℃ of preset temperatures are set, the start button switch gets into cooling and stirring and merge state this moment; When the cooling and stirring temperature arrives 40 ℃, start stop button immediately, cooling and stirring finishes.
Necessarily guarantee to be provided with preset temperature operational consistency (that is: 120 ℃ of high-temperature stirring, 40 ℃ of cooling and stirring) in the whipping process, otherwise will influence prescription starting material mutual molecular structure amalgamation, and quality of stability during follow-up co-extrusion.
Coextrusion mold operation: adopt the secondary machine of conical double-screw co-extrusion main frame and single screw rod co-extrusion to carry out co-extrusion, and working parameter is set; When product is extruded, the plasticizing rate of the mutual melts of material such as close observation PVC, according to circumstances do the necessary parameter fine setting.
Cold formed and the cutting action of vacuum water: extrude the initial stage at die orifice; Need the hand traction product; It is introduced cooling trough slowly; This moment, corresponding cooling water valve must be opened, and further with the extruded product hand traction to the YF240 tractor, when product gets into tractor, need start automatic cutting button and set product Cutting Length parameter; When extruded product gets into tentatively just often, crawl YF240 Vacuum shaping platform button, make its slowly to die orifice near; And all shaped block in stock mould and the vacuum tank are closed up; Close the vacuum water groove upper cap again, guarantee that vacuum hydraulic pressure is not less than 0.3Pma, water temperature is at 15 ℃ ± 3 ℃.
Water cooling is key one ring of decision product moulding quality, when closing up stock mould and vacuum tank, start vacuum pump respectively and open each Vacuum ball valve and cooling ball valve, makes section bar under vacuum suck and water coolant effect, closely contact also cooling forming with mould.
After accomplishing above-mentioned molding procedure, test, check that the refrigerator door column does not have bending, do not have distortion, product surface is answered smooth, does not allow ripple scar, water wave, thanks to expects trace, stain, impurity phenomenon not to allow bubble, crackle.Then product is positioned over punch press dedicated fixed support gently, the moulding of point driving switch one-shot also needs special-purpose parting tool to carry out excision forming in case of necessity.Pack then.
Combine accompanying drawing that the present invention has been carried out exemplary description above; Obvious realization of the present invention does not receive the restriction of aforesaid way; As long as adopted the method design of invention and the various improvement that technical scheme is carried out; Or directly apply to other occasion without improving the design that will invent and technical scheme, all in protection scope of the present invention.
Claims (3)
1. a refrigerator door column is characterized in that, comprises following composition and content:
Polyvinyl chloride resin, 50 parts;
CACO3,15 parts;
ACR, 2 parts;
CPE, 4.5 parts;
Stablizer, 4 parts;
Triple Pressed Stearic Acid, 0.3 part;
PE wax, 0.4 part;
Carbon black, 0.0015 part;
Said refrigerator door column adopts above-mentioned prescription coextrusion mold.
2. the coextrusion forming process of a refrigerator door column is characterized in that, comprises following operation:
Batching stirs, and prepares burden according to described composition of claim 1 and content, in the high-temperature stirring bucket, carries out high-temperature stirring and merges, and when temperature reaches 110-130 ℃, stops to accomplish high-temperature stirring; Carry out cooling and stirring at the cooling and stirring bucket then and merge, when temperature reaches 35-45 ℃, stop cooling and stirring;
Coextrusion mold: with the coextrusion mold in the coextrusion mold mould of the raw material after the above-mentioned stirring;
Vacuum water is cold formed: on the Vacuum shaping platform, carry out water-cooled shaping, its water supply pressure is not less than 0.3Pma, and water temperature is at 15 ± 3 ℃;
Excision forming: the length according to predetermined is cut, and obtains the refrigerator door column.
3. the coextrusion forming process of refrigerator door column according to claim 2 is characterized in that, in the batching agitating procedure, in the high-temperature stirring bucket, carries out high-temperature stirring and merges, and when temperature reaches 120 ℃, stops to accomplish high-temperature stirring; Carry out cooling and stirring at the cooling and stirring bucket then and merge, when temperature reaches 40 ℃, stop cooling and stirring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210140408.XA CN102643493B (en) | 2012-05-08 | 2012-05-08 | Refrigerator door vertical column and co-extrusion forming process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210140408.XA CN102643493B (en) | 2012-05-08 | 2012-05-08 | Refrigerator door vertical column and co-extrusion forming process thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN102643493A true CN102643493A (en) | 2012-08-22 |
| CN102643493B CN102643493B (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210140408.XA Expired - Fee Related CN102643493B (en) | 2012-05-08 | 2012-05-08 | Refrigerator door vertical column and co-extrusion forming process thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017296A (en) * | 2014-05-28 | 2014-09-03 | 滁州学院 | Low-cost PVC extrusion column and preparation method thereof |
| CN104017297A (en) * | 2014-05-28 | 2014-09-03 | 滁州学院 | Environment-friendly PVC extrusion column and preparation method thereof |
| CN104017295A (en) * | 2014-05-28 | 2014-09-03 | 滁州学院 | PVC extrusion column and molding technology thereof |
| CN105059645A (en) * | 2015-07-07 | 2015-11-18 | 句容市三圆制桶有限公司 | Plastic barrel production technology |
Citations (4)
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| CN101121802A (en) * | 2006-08-10 | 2008-02-13 | 广东科龙电器股份有限公司 | Environmental protection type HPVC door frame |
| CN101240098A (en) * | 2008-03-05 | 2008-08-13 | 杨益琴 | Hard polyvinyl chloride sound insulation barrier and manufacturing technique |
| CN101492987A (en) * | 2009-03-05 | 2009-07-29 | 华之杰塑料建材有限公司 | Weather resistant wood-grain imitating PVC plastic profiled bar and method for manufacturing same |
| CN102173040A (en) * | 2011-02-19 | 2011-09-07 | 姚夫军 | Method for manufacturing refrigerator stand column |
-
2012
- 2012-05-08 CN CN201210140408.XA patent/CN102643493B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101121802A (en) * | 2006-08-10 | 2008-02-13 | 广东科龙电器股份有限公司 | Environmental protection type HPVC door frame |
| CN101240098A (en) * | 2008-03-05 | 2008-08-13 | 杨益琴 | Hard polyvinyl chloride sound insulation barrier and manufacturing technique |
| CN101492987A (en) * | 2009-03-05 | 2009-07-29 | 华之杰塑料建材有限公司 | Weather resistant wood-grain imitating PVC plastic profiled bar and method for manufacturing same |
| CN102173040A (en) * | 2011-02-19 | 2011-09-07 | 姚夫军 | Method for manufacturing refrigerator stand column |
Non-Patent Citations (1)
| Title |
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| 周殿明: "《聚氯乙烯成型技术》", 30 September 2007, 化学工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017296A (en) * | 2014-05-28 | 2014-09-03 | 滁州学院 | Low-cost PVC extrusion column and preparation method thereof |
| CN104017297A (en) * | 2014-05-28 | 2014-09-03 | 滁州学院 | Environment-friendly PVC extrusion column and preparation method thereof |
| CN104017295A (en) * | 2014-05-28 | 2014-09-03 | 滁州学院 | PVC extrusion column and molding technology thereof |
| CN105059645A (en) * | 2015-07-07 | 2015-11-18 | 句容市三圆制桶有限公司 | Plastic barrel production technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102643493B (en) | 2015-07-08 |
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Granted publication date: 20150708 Termination date: 20200508 |