CN205991286U - A kind of it is applied to the thermal shrinkable sleeve that adapter moulded by steel - Google Patents
A kind of it is applied to the thermal shrinkable sleeve that adapter moulded by steel Download PDFInfo
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- CN205991286U CN205991286U CN201620962179.3U CN201620962179U CN205991286U CN 205991286 U CN205991286 U CN 205991286U CN 201620962179 U CN201620962179 U CN 201620962179U CN 205991286 U CN205991286 U CN 205991286U
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- substrate layer
- pyrocondensation
- hot melt
- melt adhesive
- adhesive layer
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Abstract
The utility model discloses a kind of be applied to the thermal shrinkable sleeve that adapter moulded by steel, including pyrocondensation substrate layer and hot melt adhesive layer, hot melt adhesive layer is coated on the inwall of pyrocondensation substrate layer, being not coated by PUR on the described pyrocondensation substrate layer at least inwall of one end makes hot melt adhesive layer length in the axial direction be less than pyrocondensation substrate layer length, and described hot melt adhesive layer is matched with the longitudinal contraction rate of pyrocondensation substrate layer.When this utility model is arranged on the object protected or seal, PUR will not overflow, and is not in irregular PUR, and the outward appearance of the object protected or seal will not be impacted.
Description
Technical field
This utility model is related to a kind of thermal shrinkable sleeve, and the anti-of adapter moulded by more particularly, to a kind of natural gas line steel that is applied to
The rotten, thermal shrinkable sleeve of sealing.
Background technology
Material contracting with heat, also known as polymer shape memory material, is the one of macromolecular material and radiation processing technology cross coupled
Plant intelligent material.Common high molecular materials such as polyethylene, polrvinyl chloride etc. are typically linear structure, through electron accelerator etc.
After the radiation effects of radioactive source become network structure, these materials will possess " memory effect " of uniqueness, expansion, cooling and shaping
Material can again shrink after being heated and return to the original form.
Pipeline engineering thermal shrinkable sleeve, is the inner surface in radiant crosslinked polyethylene material contracting with heat, coating one floor height performance heat
Melten gel, during installation, outside, because " memory effect " shrinks after being heated, internal layer PUR is endothermic melting simultaneously, tightly for material contracting with heat
It is coated on outside pipeline.Because PUR has good adhesive property, the entrance of external moisture can be stoped, thus playing absolutely
Edge, protection against the tide, sealing, protect and the effect of continuing etc..
Thermal shrinkable sleeve be widely used in because of the heat-shrinkable of its good chemical and physical properties and its uniqueness cable splice,
Petroleum pipeline, being tightly connected of the anti-corrosion and plastic drainage pipeline of natural gas line.
As depicted in figs. 1 and 2, existing thermal shrinkable sleeve includes hot melt adhesive layer 2 and the pyrocondensation base being made up of radiant crosslinked polyethylene
Material layer 1, pyrocondensation substrate layer 1 inwall fills hot melt adhesive layer 2.When thermal shrinkable sleeve is arranged on the object protected or seal（As steel pipe）On
When, with flame gun or other heating tools, thermal shrinkable sleeve is heated, thermal shrinkable sleeve is heated when reaching its pyrocondensation temperature just closely
It is retracted on the object 3 protected or seal, is now heated and is in the PUR 4 of molten condition, flow to and protected or seal
Each position of object, temperature condenses after reducing, and the effect so passing through PUR just serves the work of protection or sealed object
With.
Existing thermal shrinkable sleeve occurs following problem during actual use：During thermal shrinkable sleeve heat shrink, due to heat
Melten gel is heated and is in molten condition, leads to thermal shrinkable sleeve two ends to have PUR and overflows, thermal shrinkable sleeve is in radial contraction, axial simultaneously
Also have the contraction of a small amount of, the PUR that this also results in a part overflows.And the spilling of PUR may result in protected or
The PUR 5 of irregular condensed spilling is occurred on the object of sealing, extremely affects the object entirely protected or seal
Outward appearance.
Utility model content
During the object protected or seal to overcome existing thermal shrinkable sleeve to be arranged on, PUR effect of flood is protected or close
Envelope the outward appearance of object defect, this utility model provide a kind of be applied to the thermal shrinkable sleeve that adapter moulded by steel, this thermal shrinkable sleeve
When being arranged on the object protected or seal, PUR will not overflow, and is not in irregular PUR, will not be to being protected
Or the outward appearance of the object of sealing impacts.
This utility model be employed technical scheme comprise that by solving above-mentioned technical problem：
A kind of be applied to the thermal shrinkable sleeve that adapter moulded by steel, including pyrocondensation substrate layer and hot melt adhesive layer, hot melt adhesive layer coats
On the inwall of pyrocondensation substrate layer, the described pyrocondensation substrate layer at least inwall of one end is not coated by PUR and makes hot melt adhesive layer
Length in the axial direction is less than pyrocondensation substrate layer length, and described hot melt adhesive layer is matched with the longitudinal contraction rate of pyrocondensation substrate layer.
The longitudinal contraction rate of described hot melt adhesive layer and pyrocondensation substrate layer matches and refers to that described hot melt adhesive layer is less than pyrocondensation base
The length of material layer is adapted to " product of pyrocondensation substrate layer and its longitudinal contraction rate ".
The length that described hot melt adhesive layer is less than pyrocondensation substrate layer is adapted to that " pyrocondensation substrate layer is taken advantage of with its longitudinal contraction rate
Long-pending " refer to that hot melt adhesive layer is less than the length of pyrocondensation substrate layer more than or equal to " product of pyrocondensation substrate layer and its longitudinal contraction rate ".
The longitudinal contraction rate of pyrocondensation substrate layer described in Industry code requirements is less than or equal to 10%.Specific longitudinal contraction rate root
Obtain according to the actual measurement of this batch products.{ longitudinal contraction rate=(minimum length after perisystolic minimum length-contraction)/contraction
Front minimum length } * 100%, come from People's Republic of China's communication industry standard；Communication cable plastic sheath joint coupling.
The thickness of hot melt adhesive layer is 0.1 1.2mm.
The cross sectional shape of described thermal shrinkable sleeve is circular, square or oval.
This utility model has the advantages that：
1st, this utility model, because the inwall at least one end of pyrocondensation substrate layer is not coated by PUR, so, works as pyrocondensation
It is enclosed within when being heated, the part that the PUR of molten condition overflows still is wrapped in interior, without spilling into heat by pyrocondensation substrate layer
Outside contracting substrate layer, do not affect the appearance；This utility model is because the inwall of at least one end of pyrocondensation substrate layer is not coated by hot melt adhesive layer
Make the length that in the axial direction of the hot melt adhesive layer of thermal shrinkable sleeve obtaining, length is less than in the axial direction of pyrocondensation substrate layer, its length being less than
More than or equal to the product of pyrocondensation substrate layer length and its longitudinal contraction rate, the setting that this is not coated by PUR length both can guarantee that heat
Melten gel cannot overflow, and the outward appearance of the object protected or seal will not be impacted；This length ratio can guarantee that pyrocondensation simultaneously
Substrate layer is just flushed with the position of hot melt adhesive layer in heat shrinkable rearward end position, it is to avoid due to being not coated by PUR
The length of pyrocondensation substrate layer is long, even if after heat shrinkable, on pyrocondensation substrate layer, some does not have PUR, thus cannot
The object protected or seal not having this part of PUR is sealed and is protected.
2nd, the cross sectional shape of this utility model thermal shrinkable sleeve is circular, square or oval.Multiple section shape is provided
Thermal shrinkable sleeve, is suitable for the pipeline of different cross sectional shapes, and the scope of application is wider.
Brief description
Fig. 1 is the structural representation of existing thermal shrinkable sleeve；
Fig. 2 is the side structure sectional view of Fig. 1；
Fig. 3 is that existing thermal shrinkable sleeve is arranged on the schematic diagram being in heating status on the object protected or seal；
Fig. 4 is the structural representation of this utility model embodiment 1；
Fig. 5 is the structural representation of utility model embodiment 2.
Fig. 6 is arranged on the schematic diagram being in heating status on the object protected or seal for this utility model.
In figure labelling：1st, pyrocondensation substrate layer, 2, hot melt adhesive layer, 3, the object protected or seal, 4, be in molten condition
PUR, 5, overflow PUR.
Specific embodiment
With reference to embodiment, the utility model will be further described, and described embodiment is only that this practicality is new
The a part of embodiment of type, is not whole embodiments.Based on the embodiment in this utility model, the ordinary skill people of this area
The embodiment used by other that member is obtained under the premise of not making creative work, broadly falls into protection model of the present utility model
Enclose.
Embodiment 1
As shown in Fig. 4, Fig. 6, a kind of it is applied to the thermal shrinkable sleeve that adapter moulded by steel, including pyrocondensation substrate layer 1 and PUR
Layer 2, hot melt adhesive layer 2 is coated on the inwall of pyrocondensation substrate layer 1, and the inwall of one end of described pyrocondensation substrate layer 1 is not coated by heat
Melten gel makes hot melt adhesive layer 2 length in the axial direction be less than pyrocondensation substrate layer 1 length, described hot melt adhesive layer 2 and pyrocondensation substrate layer 2
Longitudinal contraction rate match.
The longitudinal contraction rate of described hot melt adhesive layer and pyrocondensation substrate layer matches and refers to that described hot melt adhesive layer 2 is less than pyrocondensation base
The length of material layer 1 is adapted to " product of pyrocondensation substrate layer and its longitudinal contraction rate ".
The length that described hot melt adhesive layer 2 is less than pyrocondensation substrate layer 1 is adapted to that " pyrocondensation substrate layer is taken advantage of with its longitudinal contraction rate
Long-pending " refer to that hot melt adhesive layer 2 is less than the length of pyrocondensation substrate layer 1 more than or equal to " pyrocondensation substrate layer is taken advantage of with its longitudinal contraction rate
Long-pending ".
Thermal shrinkable sleeve of the present utility model carries out sealing in the gas pipeline that steel is moulded with adapter connection, anti-corrosion protection when,
Thermal shrinkable sleeve is enclosed within pipeline, one end of coating hot-melt adhesive is enclosed within steel and moulds on adapter and just steel is moulded adapter to be covered
Lid, then heating thermal shrinkable sleeve is thus be arranged on thermal shrinkable sleeve on pipeline.As described in Figure 6, this enforcement heating install when PUR not
Can spill into outside pyrocondensation substrate layer.
The present embodiment taking the pyrocondensation substrate layer of 1m length as a example, when pyrocondensation substrate layer longitudinal contraction rate be 10% when, then hot melt
The length of glue-line 2 is 0.9m, and on the inwall of one end of pyrocondensation substrate layer 1, at least length of 0.1m is not coated by PUR.
Embodiment 2
As shown in figure 5, a kind of be applied to the thermal shrinkable sleeve that adapter moulded by steel, including pyrocondensation substrate layer and hot melt adhesive layer, heat
Melt layer 2 is coated on the inwall of pyrocondensation substrate layer 1, and the inwall at two ends of described pyrocondensation substrate layer 1 is not coated by PUR to be made
Obtain hot melt adhesive layer 2 length in the axial direction and be less than pyrocondensation substrate layer 1 length, the longitudinal direction of described hot melt adhesive layer 2 and pyrocondensation substrate layer 1
Shrinkage factor matches.The longitudinal contraction rate of described hot melt adhesive layer 2 and pyrocondensation substrate layer 1 matches and refers to that described hot melt adhesive layer 2 is little
Length in pyrocondensation substrate layer 1 is adapted to " product of pyrocondensation substrate layer and its longitudinal contraction rate ".Described hot melt adhesive layer 2 is less than heat
The length of contracting substrate layer 1 is adapted to " product of pyrocondensation substrate layer and its longitudinal contraction rate " and refers to that hot melt adhesive layer 2 is less than pyrocondensation base
The length of material layer 1 is more than or equal to " product of pyrocondensation substrate layer and its longitudinal contraction rate ".The two ends of pyrocondensation substrate layer 1 are not coated by heat
Melten gel makes the two ends of hot melt adhesive layer 2 not flush with the end of pyrocondensation substrate layer 1.The present embodiment with the pyrocondensation substrate layer of 1m,
When its longitudinal contraction rate be 5% when, then the length of hot melt adhesive layer be 0.95m, the inwall at pyrocondensation substrate layer 1 two ends has to
The length of few 0.05m is not coated by PUR.
In above-described embodiment 1 and 2, the thickness of hot melt adhesive layer 2 is preferably 0.1～1.2mm
The cross sectional shape of described thermal shrinkable sleeve can be circular, square or oval.
This utility model is used for cable splice, petroleum pipeline, the sealing of the anti-corrosion and plastic drainage pipeline of natural gas line
Connect, the steel being particularly suited on natural gas line moulds the anti-corrosion of adapter and sealing.
Claims (4)
1. a kind of be applied to the thermal shrinkable sleeve that adapter moulded by steel, including pyrocondensation substrate layer and hot melt adhesive layer, hot melt adhesive layer is coated in
On the inwall of pyrocondensation substrate layer it is characterised in that：Being not coated by PUR on the described pyrocondensation substrate layer at least inwall of one end makes
Obtain hot melt adhesive layer length in the axial direction and be less than pyrocondensation substrate layer length, the longitudinal contraction of described hot melt adhesive layer and pyrocondensation substrate layer
Rate matches.
2. according to claim 1 a kind of be applied to steel mould adapter thermal shrinkable sleeve it is characterised in that：Described PUR
Layer is adapted to " product of pyrocondensation substrate layer and its longitudinal contraction rate " less than the length of pyrocondensation substrate layer.
3. according to claim 1 a kind of be applied to steel mould adapter thermal shrinkable sleeve it is characterised in that：Described pyrocondensation base
The longitudinal contraction rate of material layer is less than 20%.
4. according to claim 1 a kind of be applied to steel mould adapter thermal shrinkable sleeve it is characterised in that：Hot melt adhesive layer
Thickness is 0.1～1.2mm
According to claim 1 and 2 a kind of be applied to steel mould adapter thermal shrinkable sleeve it is characterised in that：Described pyrocondensation
The cross sectional shape of set is circular, square or oval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620962179.3U CN205991286U (en) | 2016-08-29 | 2016-08-29 | A kind of it is applied to the thermal shrinkable sleeve that adapter moulded by steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620962179.3U CN205991286U (en) | 2016-08-29 | 2016-08-29 | A kind of it is applied to the thermal shrinkable sleeve that adapter moulded by steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205991286U true CN205991286U (en) | 2017-03-01 |
Family
ID=58107420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620962179.3U Active CN205991286U (en) | 2016-08-29 | 2016-08-29 | A kind of it is applied to the thermal shrinkable sleeve that adapter moulded by steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205991286U (en) |
-
2016
- 2016-08-29 CN CN201620962179.3U patent/CN205991286U/en active Active
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