CN1537713A - Manufacturing method of heat insulating metal pipe loved with micro foamed plastic layer - Google Patents
Manufacturing method of heat insulating metal pipe loved with micro foamed plastic layer Download PDFInfo
- Publication number
- CN1537713A CN1537713A CNA031164803A CN03116480A CN1537713A CN 1537713 A CN1537713 A CN 1537713A CN A031164803 A CNA031164803 A CN A031164803A CN 03116480 A CN03116480 A CN 03116480A CN 1537713 A CN1537713 A CN 1537713A
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- Prior art keywords
- protective layer
- little
- plastics
- batching
- foam insulation
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Abstract
A technology for preparing an insulating metal pipe with a microfoamed plastic layer and an antiageing protection layer includes such steps as removing oil from the surface of raw metal pipes, connecting, drawing, preheating pipe, putting it in mould, and extruding out said microfoamed plastic layer and antiageing protection layer onto surface of metal pipe, and cooling. The components and preparing process of said microfoamed plastic layer and antiageing protection layer are also disclosed.
Description
Technical field
The present invention relates to a kind of manufacture method of covering little foaming heat insulation metal pipe with heat-insulating of moulding.
Background technology
In industrial and agricultural production and daily life, the application of plastic metal tube is very extensive, but these plastic metal tubes are not all brought into play the advance and the superiority of plastics performance, and heat insulation and preservation effect is poor, causes the massive losses of the energy.
Summary of the invention
The objective of the invention is to the present situation at above-mentioned plastic metal tube, provide a kind of reasonable in design, scientific formulation, production are easy to mould the manufacture method of covering little foaming heat insulation metal pipe with heat-insulating.
Moulding the structure of covering little foaming heat insulation metal pipe with heat-insulating is to be provided with the little foam insulation of plastics outside metal tube, is provided with the anti-aging outer protective layer outside the little foam insulation of plastics.For reaching this purpose, manufacture method of the present invention is:
One, technological process:
Metal tube connection traction tubing preheating progressive die tool through oil removing prints cutting check finished product with the little foam insulation batching of plastics, anti-aging protective layer batching by the compound cooling of extruding machine coextrusion simultaneously.
Two, prescription design (weight ratio):
1, foam insulation
Polyethylene 101-105
AC blowing agent 0.3-0.32
Color masterbatch 0.15-0.2
Citric acid 0.2-0.25
Paraffin oil 0.06-0.07
Zinc oxide 0.2-0.25
EVA 10-10.5
2, anti-aging protective layer
Polyethylene 101-105
Color masterbatch 1.2-1.3
Antiaging agent 2.8-2.9
Fire retardant 12-12.5
Three, manufacture method:
1, capital equipment
Each one of outer injection machine and internal layer injection machine; plastic particular manufacturing craft one cover; this particular manufacturing craft comprises little foaming layer core rod and coupled little foaming layer die sleeve; protective layer core rod and coupled protective layer die sleeve; on little foaming layer core rod and little foaming layer die sleeve, be provided with foaming layer machine neck, on protective layer core rod and coupled protective layer die sleeve, be provided with protective layer machine neck.
2, batching
2-1, the little foam insulation of plastics
By proportioning all material is put into agitator (wherein citric acid, AC blowing agent must be used the specific purpose tool grind into fine powder before putting into bucket), start mixer, it is stand-by that all material is mixed.
2-2, anti-aging protective layer
By proportioning all material being put into agitator stirs stand-by.
3, operating process
After the injection machine preheating; start the injection machine motor; the little foam insulation batching of plastics enters plastic particular manufacturing craft from foaming layer machine neck; anti-aging protective layer batching enters plastic particular manufacturing craft from protective layer machine neck; the little foam insulation batching of plastics is injected into outside the metal tube of being located at plastic particular manufacturing craft center;, outside the little foam insulation of plastics, the little foam insulation of plastics and anti-aging protective layer are formation and being integrated in mould by plastic for anti-aging protective layer batching.By plastic good metal tube by the crawling traction machine travel.
The present invention compared with prior art has following obvious advantage and progress.(1), the plastic quality of the present invention is good, speed is fast.(2), draw materials easily, needed raw material is many, can utilize polyethylene as main material, also other raw material such as available polyvinyl chloride.(3), the product produced of the present invention has been owing to added raw materials such as antiaging agent, fire retardant, improved the performance of product, prolongs its service life.(4), this product heat insulation and preservation effect is good, energy-conservation obvious.
The present invention is applicable to produce to mould covers little foaming heat insulation metal pipe with heat-insulating.
Description of drawings
Fig. 1 is a process chart of the present invention.
Fig. 2 is a plastic particular manufacturing craft structure cut-away view of the present invention.
Fig. 3 is a metal pipe with heat-insulating product structure cut-away view of the present invention.
The specific embodiment
As shown in Figure 1; after the injection machine preheating; start the injection machine motor; the little foam insulation batching of plastics enters plastic particular manufacturing craft from foaming layer machine neck; anti-aging protective layer batching enters plastic particular manufacturing craft from protective layer machine neck, and the little foam insulation batching of plastics is injected into outside the metal tube of being located at plastic particular manufacturing craft center; outside the little foam insulation of plastics, the little foam insulation of plastics and anti-aging protective layer are formation and being integrated in mould by plastic for anti-aging protective layer batching.Simultaneously plastic good metal tube is involved by caterpillar-tractor.
As shown in Figure 2; this plastic particular manufacturing craft 4 comprises little foaming layer core rod 7 and coupled little foaming layer die sleeve 6; protective layer core rod 2 and coupled protective layer die sleeve 3; on little foaming layer core rod 7 and little foaming layer die sleeve 6, be provided with foaming layer machine neck 1, on protective layer core rod 2 and coupled protective layer die sleeve 3, be provided with protective layer machine neck 5.
As shown in Figure 3, the product metal pipe with heat-insulating that the present invention produced is made up of metal tube 8 and the little foam insulation 9 of plastics of being located at metal tube 8, is provided with anti-aging outer protective layer 10 outside the little foam insulation 9 of plastics.
Embodiment one
Get polyethylene 101kg, AC blowing agent 0.3kg, color masterbatch 0.15kg, citric acid 0.2kg, paraffin oil 0.06kg, zinc oxide 0.2kg, EVA 10kg.By proportioning all material is put into agitator (wherein citric acid, AC blowing agent must be used the specific purpose tool grind into fine powder before putting into bucket), start mixer, all material is mixed make the little foam insulation of plastics and prepare burden stand-by.
Get polyethylene 101kg, color masterbatch 1.2kg, antiaging agent 2.8kg, fire retardant 12kg.By proportioning all material is put into agitator and stir that to make the anti-aging protective layer stand-by.
After the injection machine preheating; start the injection machine motor; the little foam insulation batching of plastics enters plastic particular manufacturing craft 4 from foaming layer machine neck 1; anti-aging protective layer batching enters plastic particular manufacturing craft 4 from protective layer machine neck 5; the little foam insulation batching of plastics is injected into outside the metal tube of being located at plastic particular manufacturing craft center;, outside the little foam insulation of plastics, the little foam insulation of plastics and anti-aging protective layer are formation and being integrated in mould by plastic for anti-aging protective layer batching.Simultaneously plastic good metal tube is involved by caterpillar-tractor.
Embodiment two
Get polyethylene 105kg, AC blowing agent 0.32kg, color masterbatch 0.2kg, citric acid 0.25kg, paraffin oil 0.07kg, zinc oxide 0.25kg, EVA 10.5kg.By proportioning all material is put into agitator (wherein citric acid, AC blowing agent must be used the specific purpose tool grind into fine powder before putting into bucket), start mixer, all material is mixed make the little foam insulation of plastics and prepare burden stand-by.
Get polyethylene 105kg, color masterbatch 1.3kg, antiaging agent 2.9kg, fire retardant 12.5kg.By proportioning all material is put into agitator and stir that to make the anti-aging protective layer stand-by.
After the injection machine preheating; start the injection machine motor; the little foam insulation batching of plastics enters plastic particular manufacturing craft 4 from foaming layer machine neck 1; anti-aging protective layer batching enters plastic particular manufacturing craft 4 from protective layer machine neck 5; the little foam insulation batching of plastics is injected into outside the metal tube of being located at plastic particular manufacturing craft center;, outside the little foam insulation of plastics, the little foam insulation of plastics and anti-aging protective layer are formation and being integrated in mould by plastic for anti-aging protective layer batching.Simultaneously plastic good metal tube is involved by caterpillar-tractor.
Embodiment three
Get polyethylene 103kg, AC blowing agent 0.31kg, color masterbatch 0.17kg, citric acid 0.23kg, paraffin oil 0.065kg, zinc oxide 0.23kg, EVA 10.3kg.By proportioning all material is put into agitator (wherein citric acid, AC blowing agent must be used the specific purpose tool grind into fine powder before putting into bucket), start mixer, all material is mixed make the little foam insulation of plastics and prepare burden stand-by.
Get polyethylene 103kg, color masterbatch 1.25kg, antiaging agent 2.85kg, fire retardant 12.3kg.By proportioning all material is put into agitator and stir that to make the anti-aging protective layer stand-by.
After the injection machine preheating; start the injection machine motor; the little foam insulation batching of plastics enters plastic particular manufacturing craft 4 from foaming layer machine neck 1; anti-aging protective layer batching enters plastic particular manufacturing craft 4 from protective layer machine neck 5; the little foam insulation batching of plastics is injected into outside the metal tube of being located at plastic particular manufacturing craft center;, outside the little foam insulation of plastics, the little foam insulation of plastics and anti-aging protective layer are formation and being integrated in mould by plastic for anti-aging protective layer batching.Simultaneously plastic good metal tube is involved by caterpillar-tractor.
The present invention is applicable to produce to mould covers little foaming heat insulation metal pipe with heat-insulating.
Claims (4)
1, a kind of manufacture method of covering little foaming heat insulation metal pipe with heat-insulating of moulding is characterized in that its technological process is: the metal tube connection traction tubing preheating progressive die tool through oil removing prints cutting check finished product with the little foam insulation batching of plastics, anti-aging protective layer batching by the compound cooling of extruding machine coextrusion simultaneously.
2, the manufacture method of covering little foaming heat insulation metal pipe with heat-insulating of moulding according to claim 1, the formulation weight ratio that it is characterized in that little foam insulation of its plastics and anti-aging protective layer is: foam insulation: polyethylene 101-105, AC blowing agent 0.3-0.32, color masterbatch 0.15-0.2, citric acid 0.2-0.25, paraffin oil 0.06-0.07, zinc oxide 0.2-0.25, EVA 10-10.5; Anti-aging protective layer: polyethylene 101-105, color masterbatch 1.2-1.3, antiaging agent 2.8-2.9, fire retardant 12-12.5.
3; the manufacture method of covering little foaming heat insulation metal pipe with heat-insulating of moulding according to claim 1; it is characterized in that its operating process is: after the injection machine preheating; start the injection machine motor; the little foam insulation batching of plastics enters plastic particular manufacturing craft (4) from foaming layer machine neck (1); anti-aging protective layer batching enters plastic particular manufacturing craft (4) from protective layer machine neck (5); the little foam insulation batching of plastics is injected into outside the metal tube of being located at plastic particular manufacturing craft center; outside the little foam insulation of plastics, the little foam insulation of plastics and anti-aging protective layer are formation and being integrated in mould by plastic for anti-aging protective layer batching.Simultaneously plastic good metal tube is involved by caterpillar-tractor.
4, according to the described manufacture method of covering little foaming heat insulation metal pipe with heat-insulating of moulding of claim 3; it is characterized in that described plastic particular manufacturing craft (4) comprises little foaming layer core rod (7) and coupled little foaming layer die sleeve (6); protective layer core rod (2) and coupled protective layer die sleeve (3); on little foaming layer core rod (7) and little foaming layer die sleeve (6), be provided with foaming layer machine neck (1), on protective layer core rod (2) and coupled protective layer die sleeve (3), be provided with protective layer machine neck (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031164803A CN1537713A (en) | 2003-04-18 | 2003-04-18 | Manufacturing method of heat insulating metal pipe loved with micro foamed plastic layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031164803A CN1537713A (en) | 2003-04-18 | 2003-04-18 | Manufacturing method of heat insulating metal pipe loved with micro foamed plastic layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1537713A true CN1537713A (en) | 2004-10-20 |
Family
ID=34320363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031164803A Pending CN1537713A (en) | 2003-04-18 | 2003-04-18 | Manufacturing method of heat insulating metal pipe loved with micro foamed plastic layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1537713A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100450760C (en) * | 2005-11-10 | 2009-01-14 | 甘国工 | Production method and device for composite tube of butt welding metal tube and polymer |
| CN104441552A (en) * | 2014-06-28 | 2015-03-25 | 河南盛世塑业有限公司 | Co-extruding mould |
| CN106321200A (en) * | 2016-08-29 | 2017-01-11 | 长春亚大汽车零件制造有限公司 | Main body pipe for SCR urea pipe and SCR urea pipe |
| CN109130130A (en) * | 2018-11-05 | 2019-01-04 | 福建亚通新材料科技股份有限公司 | A kind of multiple tube protective layer covers painting mold |
| CN110171091A (en) * | 2019-03-26 | 2019-08-27 | 江苏欣荣普尔斯机械有限公司 | A kind of second time of foaming mold |
-
2003
- 2003-04-18 CN CNA031164803A patent/CN1537713A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100450760C (en) * | 2005-11-10 | 2009-01-14 | 甘国工 | Production method and device for composite tube of butt welding metal tube and polymer |
| CN104441552A (en) * | 2014-06-28 | 2015-03-25 | 河南盛世塑业有限公司 | Co-extruding mould |
| CN106321200A (en) * | 2016-08-29 | 2017-01-11 | 长春亚大汽车零件制造有限公司 | Main body pipe for SCR urea pipe and SCR urea pipe |
| CN109130130A (en) * | 2018-11-05 | 2019-01-04 | 福建亚通新材料科技股份有限公司 | A kind of multiple tube protective layer covers painting mold |
| CN109130130B (en) * | 2018-11-05 | 2023-12-15 | 福建亚通新材料科技股份有限公司 | Composite pipe protective layer coating die |
| CN110171091A (en) * | 2019-03-26 | 2019-08-27 | 江苏欣荣普尔斯机械有限公司 | A kind of second time of foaming mold |
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