CN102748542A - Steel-plastic composite protective sleeve - Google Patents
Steel-plastic composite protective sleeve Download PDFInfo
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- CN102748542A CN102748542A CN2012102426762A CN201210242676A CN102748542A CN 102748542 A CN102748542 A CN 102748542A CN 2012102426762 A CN2012102426762 A CN 2012102426762A CN 201210242676 A CN201210242676 A CN 201210242676A CN 102748542 A CN102748542 A CN 102748542A
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Abstract
The invention discloses a steel-plastic composite protective sleeve, belonging to the technical field of a rigid tube. The steel-plastic composite protective sleeve consists of six layers, i.e. an inner plastic layer, a first adhesive layer, a steel tube layer, a second adhesive layer, an outer plastic layer and an outer plastic surface layer in sequence from inside to outside; the outer plastic layer consists of the following substances by mass percentage: 70-85 percent of polyethylene and 15-30 percent of filling master material; the inner plastic layer consists of the following substances by mass percentage: 85-95 percent of polyethylene and 5-15 percent of filling master material; the filling master material consists of the following substances by mass percentage: 40-60 percent of polyethylene, 15-35 percent of calcium carbonate, and 15-35 percent of PE (polyethylene) flame retardant; and a polyethylene layer is adopted as the outer plastic layer. The steel-plastic composite protective sleeve has high ring stiffness, light weight and good flame retardance.
Description
Technical field
The present invention relates to a kind of steel and mould composite protective sleeve, belong to the rigid pipe technical field.
Background technique
The steel-plastic composite pressure pipe industry is a kind of new industry that has just grown up recent years; Because this tubing is all to mould layer inside and outside a kind of; The centre is an argon arc butt welding steel pipe; Carry out five layers of bonding composite pipe by special-purpose adhesive between steel pipe and the plastics, make this tubing possess bearing capacity height, characteristics such as price is low, linear expansion coeffcient is little, impact resistance is strong, good insulation preformance, inner wall smooth, long service life, had an optimistic view of by numerous manufacturing firms and user.
Protective casing commonly used in the market is main with pure plastic pipe, and the part engineering is with Coating Steel Pipe plastics lined pipe or Coating Steel Pipe.There are shortcomings such as ring stiffness is low, shock resistance is poor, linear expansion coeffcient is big in plastic tube, and metal tube exists shortcomings such as insulating property are poor, tubing Heavy Weight, price height.It should possess certain advantage in the electrical cable protection sleeve field structural behaviour decision of steel-plastic composite pressure pipe, but the ring stiffness of tubing commonly used is lower at present.
Summary of the invention
The technical problem that the present invention will solve provides a kind of steel and moulds composite protective sleeve, and it is high that steel of the present invention is moulded the composite protective sleeve ring stiffness, light weight, good flame resistance.
The technological scheme that the present invention taked is: a kind of steel is moulded composite protective sleeve, and it is formed by six layers, moulds layer, first adhesive layer, steel pipe layer, second adhesive layer, outer plastic layer in from inside to outside being followed successively by and moulds surface layer outward;
Outer plastic layer is made up of following material by mass percentage: polyethylene 70～85%, filling master batch 15～30%;
In mould the layer form by following material by mass percentage: polyethylene 85～95%, filling master batch 5～15%;
Filling master batch is made up of following material according to mass percent: polyethylene 40～60%, calcium carbonate 15～35%, PE fire retardant 15～35%;
Outer plastic layer is a polyethylene layer.
Preferred outer plastic layer is made up of following material by mass percentage: polyethylene 80%, filling master batch 20%;
Moulding layer in preferred is made up of following material by mass percentage: polyethylene 90%, filling master batch 10%;
Preferred filling master batch is made up of following material according to mass percent: polyethylene 50%, calcium carbonate 25%, PE fire retardant 25%.
The raw material of first adhesive layer and second adhesive layer is a PUR.
The steel pipe layer is an argon arc butt welding steel pipe.
Outer plastic layer and mould the surface layer coextru-lamination outward and form an integral body.
The preparation method that steel of the present invention is moulded composite protective sleeve is: polyethylene and filling master batch are mixed in proportion the back heat fused; Mould layer in extruding with extruder; Outer plastic layer and mould the surface layer coextru-lamination outward and form an integral body sticks with glue agent each layer is bonded together.
Calcium carbonate in the filling master batch can improve ring stiffness; For ring stiffness and the flame retardant property that improves tubing, should dose filling master batch as much as possible, but through process test; In mould a layer filling master batch to dose ratio too high; Tubing toughness can reduce, and can't extrude production, and prescription of the present invention can improve tubing again under the property condition that guarantees tubing toughness ring stiffness fires performance with intercepting.Outer plastic layer since with in the extrusion way moulded different, and do not have toughness reguirements, masterbatch to dose ratio can be greatly, the ring stiffness and the flame retarding of raising tubing.
Adopt the beneficial effect that technique scheme produced to be: it is high that steel of the present invention is moulded the composite protective sleeve ring stiffness, light weight, good flame resistance.Argon arc butt welding steel pipe inside and outside through PUR respectively with interior to mould layer bonding with outer plastic layer, not only have higher ring stiffness but also lighter weight, mould surface layer outward and can effectively protect outer plastic layer and make protective casing appearance quality fineness.Protective casing ring stiffness performance of the present invention reaches 30KN/m
2More than, can be used for expressway and to the demanding field of tubing ring stiffness.
Embodiment
Embodiment 1
A kind of steel is moulded composite protective sleeve, and it is formed by six layers, moulds layer, first adhesive layer, steel pipe layer, second adhesive layer, outer plastic layer in from inside to outside being followed successively by and moulds surface layer outward;
Outer plastic layer is made up of following material by mass percentage: polyethylene 80%, filling master batch 20%;
In mould the layer form by following material by mass percentage: polyethylene 90%, filling master batch 10%;
Filling master batch is made up of following material according to mass percent: polyethylene 50%, calcium carbonate 25%, PE fire retardant 25%;
The raw material of first adhesive layer and second adhesive layer is a PUR;
The steel pipe layer is an argon arc butt welding steel pipe;
Outer plastic layer is a polyethylene layer.
Embodiment 2
A kind of steel is moulded composite protective sleeve, and it is formed by six layers, moulds layer, first adhesive layer, steel pipe layer, second adhesive layer, outer plastic layer in from inside to outside being followed successively by and moulds surface layer outward;
Outer plastic layer is made up of following material by mass percentage: polyethylene 70%, filling master batch 30%;
In mould the layer form by following material by mass percentage: polyethylene 95%, filling master batch 5%;
Filling master batch is made up of following material according to mass percent: polyethylene 40%, calcium carbonate 30%, PE fire retardant 30%;
The raw material of first adhesive layer and second adhesive layer is a PUR;
The steel pipe layer is an argon arc butt welding steel pipe;
Outer plastic layer is a polyethylene layer.
Embodiment 3
A kind of steel is moulded composite protective sleeve, and it is formed by six layers, moulds layer, first adhesive layer, steel pipe layer, second adhesive layer, outer plastic layer in from inside to outside being followed successively by and moulds surface layer outward;
Outer plastic layer is made up of following material by mass percentage: polyethylene 85%, filling master batch 15%;
In mould the layer form by following material by mass percentage: polyethylene 85%, filling master batch 15%;
Filling master batch is made up of following material according to mass percent: polyethylene 60%, calcium carbonate 15%, PE fire retardant 15%;
The raw material of first adhesive layer and second adhesive layer is a PUR;
The steel pipe layer is an argon arc butt welding steel pipe;
Outer plastic layer is a polyethylene layer.
Embodiment 4
A kind of steel is moulded composite protective sleeve, and it is formed by six layers, moulds layer, first adhesive layer, steel pipe layer, second adhesive layer, outer plastic layer in from inside to outside being followed successively by and moulds surface layer outward;
Outer plastic layer is made up of following material by mass percentage: polyethylene 80%, filling master batch 20%;
In mould the layer form by following material by mass percentage: polyethylene 90%, filling master batch 10%;
Filling master batch is made up of following material according to mass percent: polyethylene 48%, calcium carbonate 26%, PE fire retardant 26%;
The raw material of first adhesive layer and second adhesive layer is a PUR;
The steel pipe layer is an argon arc butt welding steel pipe;
Outer plastic layer is a polyethylene layer.
Claims (4)
1. a steel is moulded composite protective sleeve, it is characterized in that: it is formed by six layers, moulds layer, first adhesive layer, steel pipe layer, second adhesive layer, outer plastic layer in from inside to outside being followed successively by and moulds surface layer outward;
Outer plastic layer is made up of following material by mass percentage: polyethylene 70～85%, filling master batch 15～30%;
In mould the layer form by following material by mass percentage: polyethylene 85～95%, filling master batch 5～15%;
Said filling master batch is made up of following material according to mass percent: polyethylene 40～60%, calcium carbonate 15～35%, PE fire retardant 15～35%;
Outer plastic layer is a polyethylene layer.
2. a kind of steel as claimed in claim 1 is moulded composite protective sleeve, it is characterized in that:
Outer plastic layer is made up of following material by mass percentage: polyethylene 80%, filling master batch 20%;
In mould the layer form by following material by mass percentage: polyethylene 90%, filling master batch 10%;
Said filling master batch is made up of following material according to mass percent: polyethylene 50%, calcium carbonate 25%, PE fire retardant 25%.
3. a kind of steel as claimed in claim 1 is moulded composite protective sleeve, it is characterized in that: the raw material of said first adhesive layer and second adhesive layer is a PUR.
4. a kind of steel as claimed in claim 1 is moulded composite protective sleeve, it is characterized in that: said steel pipe layer is an argon arc butt welding steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102426762A CN102748542A (en) | 2012-07-13 | 2012-07-13 | Steel-plastic composite protective sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102426762A CN102748542A (en) | 2012-07-13 | 2012-07-13 | Steel-plastic composite protective sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102748542A true CN102748542A (en) | 2012-10-24 |
Family
ID=47028945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102426762A Pending CN102748542A (en) | 2012-07-13 | 2012-07-13 | Steel-plastic composite protective sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102748542A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042069A (en) * | 2012-12-28 | 2013-04-17 | 江苏金波新材料科技有限公司 | Method for preparing composite pipe |
| CN103759080A (en) * | 2014-01-24 | 2014-04-30 | 新兴铸管股份有限公司 | Composite steel-plastic pressure tube and manufacturing method thereof |
| CN104785912A (en) * | 2015-04-13 | 2015-07-22 | 新兴铸管股份有限公司 | Heat insulation protection device and using method thereof |
| CN107163351A (en) * | 2017-07-04 | 2017-09-15 | 合肥择浚电气设备有限公司 | A kind of high-strength composite pipe and its production technology |
| CN117659543A (en) * | 2023-12-06 | 2024-03-08 | 广东中讯通讯设备实业有限公司 | High-strength plastic-steel composite PE cable protection pipe and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4123476A (en) * | 1973-04-20 | 1978-10-31 | Pneumatiques, Caoutchouc Manufacture Et Plastiques Kleber-Colombes | Reinforced plastic material and a process for the production thereof |
| CN1295208A (en) * | 2000-10-17 | 2001-05-16 | 甘国工 | Stretch-oriented high-strength composite plastic pipe with inorganic stuffing-plastic layer |
| CN1328223A (en) * | 2000-06-09 | 2001-12-26 | 沈阳金德铝塑复合管有限公司 | Composite Al-plastic pipe with fire-retarding plastic layer |
| CN2472029Y (en) * | 2000-07-06 | 2002-01-16 | 侯贤忠 | Plastic composite pipe with steel net sheath |
| CN1412465A (en) * | 2001-10-10 | 2003-04-23 | 新兴铸管股份有限公司 | Steel-plastics composite pressure pipe and its production method |
-
2012
- 2012-07-13 CN CN2012102426762A patent/CN102748542A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4123476A (en) * | 1973-04-20 | 1978-10-31 | Pneumatiques, Caoutchouc Manufacture Et Plastiques Kleber-Colombes | Reinforced plastic material and a process for the production thereof |
| CN1328223A (en) * | 2000-06-09 | 2001-12-26 | 沈阳金德铝塑复合管有限公司 | Composite Al-plastic pipe with fire-retarding plastic layer |
| CN2472029Y (en) * | 2000-07-06 | 2002-01-16 | 侯贤忠 | Plastic composite pipe with steel net sheath |
| CN1295208A (en) * | 2000-10-17 | 2001-05-16 | 甘国工 | Stretch-oriented high-strength composite plastic pipe with inorganic stuffing-plastic layer |
| CN1412465A (en) * | 2001-10-10 | 2003-04-23 | 新兴铸管股份有限公司 | Steel-plastics composite pressure pipe and its production method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042069A (en) * | 2012-12-28 | 2013-04-17 | 江苏金波新材料科技有限公司 | Method for preparing composite pipe |
| CN103759080A (en) * | 2014-01-24 | 2014-04-30 | 新兴铸管股份有限公司 | Composite steel-plastic pressure tube and manufacturing method thereof |
| CN104785912A (en) * | 2015-04-13 | 2015-07-22 | 新兴铸管股份有限公司 | Heat insulation protection device and using method thereof |
| CN107163351A (en) * | 2017-07-04 | 2017-09-15 | 合肥择浚电气设备有限公司 | A kind of high-strength composite pipe and its production technology |
| CN117659543A (en) * | 2023-12-06 | 2024-03-08 | 广东中讯通讯设备实业有限公司 | High-strength plastic-steel composite PE cable protection pipe and preparation method thereof |
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Application publication date: 20121024 |