CN103138222A - Heat shrink tube and manufacturing method of the same - Google Patents
Heat shrink tube and manufacturing method of the same Download PDFInfo
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- CN103138222A CN103138222A CN2012105815955A CN201210581595A CN103138222A CN 103138222 A CN103138222 A CN 103138222A CN 2012105815955 A CN2012105815955 A CN 2012105815955A CN 201210581595 A CN201210581595 A CN 201210581595A CN 103138222 A CN103138222 A CN 103138222A
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- shrink tube
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- inwall
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Abstract
The invention discloses a heat shrink tube and a manufacturing method of the heat shrink tube, wherein the heat shrink tube has a -10%-40% of axial shrinking percentage, and grooves which penetrate through in an axial direction are distributed on the inner wall of the heat shrink tube. The heat shrink tube has the special axial shrinking percentage and the grooves which penetrate through in the axial direction are distributed on the inner wall. When objects which are covered are irregular in shapes or are with big bending angles, the heat shrink tube can be tightly attached to the objects which are covered, and shrink fold and bulge problems are effectively solved.
Description
Technical field
The present invention relates to technical field of polymer materials, and be particularly related to a kind of heat-shrink tube and manufacture method thereof.
Background technology
Now, heat-shrink tube is widely used in the electron electric power technical field.Heat-shrink tube is the alloy that utilizes irradiated crosslinked polyalkene and polymer thereof, through the effect of generation " shape memory " after the high-energy ray radiation, and then realizes coating various wires and cable joint, mentions the purpose of insulating protection.
Using by way of continually developing of the mankind of heat-shrink tube spreads all over various products.As: the A/C evaporator condenser pipe envelopes with heat-shrink tube, can anticorrosion can insulate again, again can fixed effect when the automobile rubber outer tube layer uses heat-shrink tube to play the insulation protection effect.yet the mould due to the heat-shrink tube product, the reason such as technique and conventional user demand, the level and smooth and axial shrinkage rate of its inner surface is generally close to zero, and a lot of users heat when using as shrinking in batches, be difficult to accomplish complete homogeneous heating, if it is not too regular or with than the macrobending angle to be wrapped by the thing shape this moment, heat-shrink tube two ends will occur first shrinks and is adjacent to, fold appears in the heat-shrink tube of irregularly shaped place or bent angle inboard, simultaneously also can be at these positions because gas can't be discharged the phenomenon that produces bulge, the outward appearance that has not only affected product also can affect follow-up assembling processing characteristics, bring inconvenience to the user.
Summary of the invention
In view of this, the present invention is intended to solve and utilizes heat-shrink tube coating shape not too regular or with than the macrobending angle in prior art, heat-shrink tube two ends will occur first shrinks and is adjacent to, fold appears in the heat-shrink tube of irregularly shaped place or bent angle inboard, simultaneously also can be at these positions because gas can't be discharged the technical problems such as phenomenon that produce bulge.
The invention provides a kind of heat-shrink tube, its axial shrinkage rate is-10%--40%, and inwall is distributed with the groove of axial perforation.
Further, described groove cross section is helix, square, zigzag circular arc.
Further, described groove is for being uniformly distributed on described inwall.
Further, described groove is for being randomly distributed on described inwall.
The present invention also provides a kind of manufacture method of heat-shrink tube, and it comprises the following steps: produce the heat-shrink tube semi-finished product that inwall is distributed with the groove of axial perforation in extrusion; That described heat-shrink tube semi-finished product obtain crosslinked memory function after cross-linking radiation; The speed ratio of more described heat-shrink tube semi-finished product being carried by adjusting and drawing is controlled its axial shrinkage rate and is the heat-shrink tube of-10%--40% in the 0.5-1.0 scope.
Further, produce the heat-shrink tube semi-finished product concrete steps that inwall is distributed with the groove of axial perforation:
Being provided with the cross section in extrusion is the plug of extruding with projection;
When material is extruded by extruding plug, form on the inwall of the heat-shrink tube of producing with described protruding respective shaft to the groove that connects.
In sum, the shortcoming that the real heat-shrink tube that provides of the present invention and manufacture method thereof overcome heat-shrink tube product in prior art, by making a kind of special shaft to the heat-shrink tube of shrinkage and interior wall construction, be contracted in the shape irregularity or with than macrobending angle body surface the time, reach the effect that exhaust is tightened, solve surface folding and bulge problem, improved surface aesthetic and the following process assembly performance of product.
Description of drawings
Figure 1 shows that the cross section structure schematic diagram of the heat-shrink tube that one embodiment of the invention provides;
Figure 2 shows that the cross section structure schematic diagram of the heat-shrink tube that another embodiment of the present invention provides;
What Figure 3 shows that heat-shrink tube extrusion equipment that another embodiment of the present invention provides extrudes the mandrel structure schematic diagram;
Figure 4 shows that the flow chart of the manufacture method of the heat-shrink tube that another embodiment of the present invention provides.
Embodiment
For purpose of the present invention, feature are become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is further described.
See also Fig. 1, it is depicted as the cross section structure schematic diagram of the heat-shrink tube that one embodiment of the invention provides.
Axial shrinkage rate: (length L 2 before after heat-shrink tube blank pipe heat shrink, length L 2-shrinks)/length L 2 * 100% before shrinking.
This heat-shrink tube, its inwall 110 is distributed with the groove 120 of axial perforation.
In embodiments of the present invention, see also Fig. 2, described groove 210 cross sections are helix, square, zigzag or circular arc.
In embodiments of the present invention, described groove is for being uniformly distributed on described inwall.
In embodiments of the present invention, described groove is for being randomly distributed on described inwall.
The heat-shrink tube that provides due to the embodiment of the present invention has the groove of axial perforation, not too regular or with than the macrobending angle time when being wrapped by the thing shape, can be when pyrocondensation with heat-shrink tube be wrapped by thing and fit tightly, effectively solved constricted fold and bulge problem.
The present invention also provides a kind of manufacture method of heat-shrink tube, sees also Fig. 4, and it comprises the following steps:
S410 utilizes the heat-shrink tube extrusion equipment to produce the heat-shrink tube semi-finished product that inwall is distributed with the groove of axial perforation in extrusion;
S420 is that described heat-shrink tube semi-finished product obtain crosslinked memory function after cross-linking radiation;
S430 carries described heat-shrink tube semi-finished product again by adjusting and the speed ratio of drawing is controlled its axial shrinkage rate and is the heat-shrink tube of-10%--40% in the 0.5-1.0 scope.
In embodiments of the present invention, see also Fig. 3, produce the heat-shrink tube semi-finished product concrete steps that inwall is distributed with the groove of axial perforation:
Be provided with the cross section be in extrusion have a projection extrude plug 310; , form on the inwall of the heat-shrink tube of producing with described protruding respective shaft to the groove that connects during by the extruding plug 310 and extrude of extrusion equipment when material.
In embodiments of the present invention, see also Fig. 3, described cross section of extruding plug is zigzag.
In sum, the heat-shrink tube that the embodiment of the present invention provides and manufacture method thereof overcome the shortcoming of heat-shrink tube product in prior art, by making a kind of special shaft to the heat-shrink tube of shrinkage and interior wall construction, be contracted in the shape irregularity or with than macrobending angle body surface the time, reach the effect that exhaust is tightened, solve surface folding and bulge problem, improved surface aesthetic and the following process assembly performance of product.
Although the present invention discloses as above with preferred embodiment; so it is not to limit the present invention; have in technical field under any and usually know the knowledgeable; without departing from the spirit and scope of the present invention; when can be used for a variety of modifications and variations, so protection scope of the present invention is as the criterion when looking claims person of defining.
Claims (7)
1. a heat-shrink tube, is characterized in that, its axial shrinkage rate is-10%--40%, and its inwall is distributed with the groove of axial perforation.
2. heat-shrink tube according to claim 1, is characterized in that, described groove cross section is helix, square, zigzag or circular arc.
3. heat-shrink tube according to claim 1, is characterized in that, described groove is for being uniformly distributed on described inwall.
4. heat-shrink tube according to claim 1, is characterized in that, described groove is for being randomly distributed on described inwall.
5. the manufacture method of a heat-shrink tube, is characterized in that, comprises the following steps:
Produce the heat-shrink tube semi-finished product that inwall is distributed with the groove of axial perforation in extrusion;
That described heat-shrink tube semi-finished product obtain crosslinked memory function after cross-linking radiation;
The speed ratio of more described heat-shrink tube semi-finished product being carried by adjusting and drawing is controlled its axial shrinkage rate and is the heat-shrink tube of-10%--40% in the 0.5-1.0 scope.
6. the manufacture method of heat-shrink tube according to claim 5, is characterized in that, produces the heat-shrink tube semi-finished product concrete steps that inwall is distributed with the groove of axial perforation:
Being provided with the cross section in extrusion is the plug of extruding with projection;
When material is extruded by extruding plug, form on the inwall of the heat-shrink tube of producing with described protruding respective shaft to the groove that connects.
7. the manufacture method of heat-shrink tube according to claim 5, is characterized in that, described cross section of extruding plug is helix, square, zigzag or circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105815955A CN103138222A (en) | 2012-12-27 | 2012-12-27 | Heat shrink tube and manufacturing method of the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105815955A CN103138222A (en) | 2012-12-27 | 2012-12-27 | Heat shrink tube and manufacturing method of the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103138222A true CN103138222A (en) | 2013-06-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105815955A Pending CN103138222A (en) | 2012-12-27 | 2012-12-27 | Heat shrink tube and manufacturing method of the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103138222A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562425A (en) * | 2014-12-26 | 2015-04-29 | 深圳市骏鼎达科技有限公司 | Heat-shrinkable structure, sleeve, protective belt and heat-shrinkable structure producing method |
| CN105221886A (en) * | 2015-10-30 | 2016-01-06 | 成都长江热缩材料有限公司 | A kind of modified node method of dock pyrocondensation pipe |
| CN105221856A (en) * | 2015-10-30 | 2016-01-06 | 成都长江热缩材料有限公司 | Based on the pyrocondensation pipe improving working life |
| CN105990813A (en) * | 2015-01-28 | 2016-10-05 | 杨洪柱 | Cold shrinkage terminal and manufacturing method thereof |
Citations (9)
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|---|---|---|---|---|
| JPS54133573A (en) * | 1978-04-07 | 1979-10-17 | Hitachi Cable Ltd | Heat-shrinkable composite tube |
| US4804733A (en) * | 1986-07-10 | 1989-02-14 | Treficable Pirelli | Thermoshrinkable tube means for controlling uniform heating thereof and process for fabricating such tube |
| JPH10146890A (en) * | 1996-11-15 | 1998-06-02 | Fujikura Ltd | Production of heat-shrinkable tube |
| CN1580092A (en) * | 2004-05-18 | 2005-02-16 | 南亚塑胶工业股份有限公司 | Copolymerized ester and method for making heat-shrinkable double-pipe using same |
| CN101987892A (en) * | 2009-07-31 | 2011-03-23 | 上海长园电子材料有限公司 | Heat-shrinkable tubing and material thereof |
| CN102093626A (en) * | 2010-12-20 | 2011-06-15 | 安徽中鼎密封件股份有限公司 | Non-halogen fire resistant low-temperature shrinkable and heat-shrinkable pipe material and preparation method thereof |
| CN201884868U (en) * | 2010-12-14 | 2011-06-29 | 成都市双流川双热缩制品有限公司 | Thermal shrinkable sleeve |
| CN201931616U (en) * | 2010-08-22 | 2011-08-17 | 青岛市海青机械总厂 | Inner wall structure of shrinkable tube |
| CN203150332U (en) * | 2012-12-27 | 2013-08-21 | 上海长园电子材料有限公司 | Heat shrinking tube |
-
2012
- 2012-12-27 CN CN2012105815955A patent/CN103138222A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54133573A (en) * | 1978-04-07 | 1979-10-17 | Hitachi Cable Ltd | Heat-shrinkable composite tube |
| US4804733A (en) * | 1986-07-10 | 1989-02-14 | Treficable Pirelli | Thermoshrinkable tube means for controlling uniform heating thereof and process for fabricating such tube |
| JPH10146890A (en) * | 1996-11-15 | 1998-06-02 | Fujikura Ltd | Production of heat-shrinkable tube |
| CN1580092A (en) * | 2004-05-18 | 2005-02-16 | 南亚塑胶工业股份有限公司 | Copolymerized ester and method for making heat-shrinkable double-pipe using same |
| CN101987892A (en) * | 2009-07-31 | 2011-03-23 | 上海长园电子材料有限公司 | Heat-shrinkable tubing and material thereof |
| CN201931616U (en) * | 2010-08-22 | 2011-08-17 | 青岛市海青机械总厂 | Inner wall structure of shrinkable tube |
| CN201884868U (en) * | 2010-12-14 | 2011-06-29 | 成都市双流川双热缩制品有限公司 | Thermal shrinkable sleeve |
| CN102093626A (en) * | 2010-12-20 | 2011-06-15 | 安徽中鼎密封件股份有限公司 | Non-halogen fire resistant low-temperature shrinkable and heat-shrinkable pipe material and preparation method thereof |
| CN203150332U (en) * | 2012-12-27 | 2013-08-21 | 上海长园电子材料有限公司 | Heat shrinking tube |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104562425A (en) * | 2014-12-26 | 2015-04-29 | 深圳市骏鼎达科技有限公司 | Heat-shrinkable structure, sleeve, protective belt and heat-shrinkable structure producing method |
| CN105990813A (en) * | 2015-01-28 | 2016-10-05 | 杨洪柱 | Cold shrinkage terminal and manufacturing method thereof |
| CN105990813B (en) * | 2015-01-28 | 2018-09-18 | 杨洪柱 | A kind of cold-shrinkable terminal and its manufacturing method |
| CN105221886A (en) * | 2015-10-30 | 2016-01-06 | 成都长江热缩材料有限公司 | A kind of modified node method of dock pyrocondensation pipe |
| CN105221856A (en) * | 2015-10-30 | 2016-01-06 | 成都长江热缩材料有限公司 | Based on the pyrocondensation pipe improving working life |
| CN105221886B (en) * | 2015-10-30 | 2017-07-04 | 成都长江热缩材料有限公司 | A kind of improved structure of dock pyrocondensation pipe |
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Address after: 201802 Shanghai City, Jiading District Nanxiang Town Jiahao Road No. 1690 Applicant after: Shanghai Changyuan Electronic Material Co., Ltd. Applicant after: Changyuan electronic (Group) Co., Ltd. Address before: 201802 Shanghai City, Jiading District Nanxiang Town Jiahao Road No. 1690 Applicant before: Shanghai Changyuan Electronic Material Co., Ltd. Applicant before: Shenzhen Changyuan Electronic Material Co., Ltd. |
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Application publication date: 20130605 |