CN100536037C - Process for manufacturing coaxial cable insulation layer and its die equipment - Google Patents
Process for manufacturing coaxial cable insulation layer and its die equipment Download PDFInfo
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- CN100536037C CN100536037C CNB2006100604755A CN200610060475A CN100536037C CN 100536037 C CN100536037 C CN 100536037C CN B2006100604755 A CNB2006100604755 A CN B2006100604755A CN 200610060475 A CN200610060475 A CN 200610060475A CN 100536037 C CN100536037 C CN 100536037C
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- coaxial cable
- degree
- insulated layer
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- millimeters
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims description 29
- 238000009413 insulation Methods 0.000 title description 8
- 238000001125 extrusion Methods 0.000 claims abstract description 23
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 230000008014 freezing Effects 0.000 claims abstract description 13
- 238000007710 freezing Methods 0.000 claims abstract description 13
- 238000000465 moulding Methods 0.000 claims description 11
- 239000004809 Teflon Substances 0.000 claims description 8
- 229920006362 Teflon® Polymers 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 239000012752 auxiliary agent Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 238000005245 sintering Methods 0.000 claims description 4
- 230000005484 gravity Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 239000002671 adjuvant Substances 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 238000011109 contamination Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 230000008961 swelling Effects 0.000 abstract 1
- 230000004888 barrier function Effects 0.000 description 5
- 230000002950 deficient Effects 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- 239000003350 kerosene Substances 0.000 description 3
- 238000012797 qualification Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000009965 odorless effect Effects 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to the preparing method of insulated layer of coaxial-cable and mould, the method includes freezing the raw material of iron fluorin dragon, then adopting the ISOPAR E series of oil to mix the freezing raw material, and maturing for some time, and executing the extrusion performing on horizontal wedging device, and it is dried by adjuvant, and the finished product of insulated layer can be obtained by heating; the mould includes the extrusion included angle which is mounted along the portrait of mould and the shaped section mounted on the front of extrusion included angle, and the extrusion included angle is bigger or equal 16 degree and smaller or equal 24 degree, the length of shaped section is bigger or equal 3 mm and smaller or equal 8 mm. The method can prevent the product of insulated layer from craze, and reduce the environmental contamination, eliminate the effect on eccentricity caused by gravity of conductor core, and improve the percent of pass of electric property, the mould can realize extrusion swelling by 0%, reduce the radial fluctuation, and improve the percent of pass of electric property of insulated core line.
Description
Technical field
The present invention relates to a kind of manufacture method and coaxial cable mfg. moulding die of coaxial cable, more particularly, relate to a kind of coaxial cable insulated layer manufacture method and mould thereof.
Background technology
At present, the insulating barrier of Teflon (polytetrafluoroethylene) coaxial cable mainly adopts the horizontal method of pushing to produce, its technological process is as shown in Figure 1: earlier the Teflon raw material is carried out freezing processing, it is even with No. 120 aviation kerosines freezing raw material to be carried out batch mixing then, spend the slaking regular hour under the above environment 24 afterwards, extrude preforming on the equipment horizontal pushing then, adopt certain coefficient of expansion (as 5-7%) when extruding, extruding the back adopts auxiliary agent to carry out drying, then through the 400 degree high temperature sinterings heart yearn finished products that obtain insulating, the shrinkage about about 20% of insulation heart yearn finished product.
There is following defective in the manufacture method of existing Teflon coaxial cable insulated layer:
1, No. 120 aviation kerosine volatilization temperature height easily cause the cable insulation cracking, and the aviation kerosine smell are dense, brings environmental pollution;
2, push in the production process because the action of gravity of inner wire heart yearn easily causes inner wire heart yearn off-centre horizontal, to cross the electric property of ambassador's insulating core line products defective because of pushing pressure easily when particularly production multiply inner wire and little line footpath (insulation that 1mm is following) coaxial cable;
3, the angle of extruding of existing mould is 30 degree, and becoming the footpath section is 10～12 millimeters, makes cable insulation have 5% the expansion of extruding, and causes the line of insulating barrier directly to fluctuate greatly, makes the electric property of insulating core line products defective easily.
Summary of the invention
One of the technical problem to be solved in the present invention is, a kind of coaxial cable insulated layer manufacture method is provided, and overcomes prior art and causes defectives such as cable insulation cracking, inner wire heart yearn off-centre.
Two of the technical problem to be solved in the present invention is, a kind of coaxial cable insulated layer mfg. moulding die is provided, and overcomes the line that prior art causes insulating barrier and directly fluctuates greatly, makes the underproof defective of electric property of insulating core line products.
The present invention solves the technical scheme that one of its technical problem adopts: a kind of coaxial cable insulated layer manufacture method is provided, comprise and earlier the Teflon raw material is carried out freezing processing, it is even then freezing raw material to be carried out batch mixing, behind the slaking certain hour, extrude preforming on the equipment horizontal pushing, extrude the back and adopt auxiliary agent to carry out drying, then through the high temperature sintering heart yearn finished product that obtains insulating; It is characterized in that, adopt ISOPAR E series oil that freezing raw material is carried out mixing treatment; And adopt the modified model extrusion die on the equipment described pushing, this modified model extrusion die extrude angle more than or equal to 16 degree smaller or equal to 24 degree scopes between, the one-tenth of this modified model extrusion die footpath segment length more than or equal to 3 millimeters smaller or equal to 8 millimeters scopes between.
In coaxial cable insulated layer manufacture method of the present invention, adopt vertical pushing and extrude the preforming step on the equipment and replace extruding the preforming step on the equipment horizontal pushing.
In coaxial cable insulated layer manufacture method of the present invention, the angle of extruding of described modified model extrusion die is 22 degree, and described one-tenth footpath segment length is 6.75 millimeters.
In coaxial cable insulated layer manufacture method of the present invention, the angle of extruding of described modified model extrusion die is 20 degree, and described one-tenth footpath segment length is 5.5 millimeters.
In coaxial cable insulated layer manufacture method of the present invention, the angle of extruding of described modified model extrusion die is 18 degree, and described one-tenth footpath segment length is 4.25 millimeters.
Two technical schemes that adopted that the present invention solves its technical problem are: construct a kind of coaxial cable insulated layer mfg. moulding die, comprise along what mould vertically was provided with and extrude angle and be arranged on the directly section that becomes that this extrudes the angle front end, it is characterized in that, described extrude angle more than or equal to 16 degree smaller or equal to 24 degree, described one-tenths directly segment length more than or equal to 3 millimeters smaller or equal to 8 millimeters.
In coaxial cable insulated layer mfg. moulding die of the present invention, the described angle of extruding is 22 degree, and described one-tenth footpath segment length is 6.75 millimeters.
In coaxial cable insulated layer mfg. moulding die of the present invention, the described angle of extruding is 20 degree, and described one-tenth footpath segment length is 5.5 millimeters.
In coaxial cable insulated layer mfg. moulding die of the present invention, the described angle of extruding is 18 degree, and described one-tenth footpath segment length is 4.25 millimeters.
Implement coaxial cable insulated layer manufacture method of the present invention and mould thereof, its beneficial effect is:
1, uses the ISOPAR E series oil of the isoparaffin of colorless and odorless, prevented the cable insulation cracking and eliminated the problem of aviation kerosine environmental pollution.
2, adopt the vertical production of pushing, eliminated of the influence of inner wire heart yearn gravity, make the product concentricity bring up to 15%, improved the electric property qualification rate of insulating core line products greatly from horizontal 20% of the product of pushing to product off-centre.
3, adopt the modified model extrusion die to produce cable insulation, can realize 0% the expansion of extruding, the line that has reduced product directly fluctuates, and has improved the electric property qualification rate of insulating core line products greatly.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the typical production process chart of existing Teflon coaxial cable insulated layer.
Fig. 2 is the flow chart of the embodiment one of coaxial cable insulated layer manufacture method of the present invention.
Fig. 3 is the flow chart of the embodiment two of coaxial cable insulated layer manufacture method of the present invention.
Fig. 4 is the section of structure of coaxial cable insulated layer mfg. moulding die of the present invention.
Embodiment
The embodiment one of coaxial cable insulated layer manufacture method of the present invention
Fig. 2 shows the flow process of the embodiment one of coaxial cable insulated layer manufacture method of the present invention.As shown in Figure 2, this coaxial cable insulated layer manufacture method comprises, as conventional production method, earlier the Teflon raw material is carried out freezing processing, it is even to adopt ISOPAR E series oil (ISOPAR E series oil is the isoparaffin series products of Exxon Corporation) that freezing raw material is carried out batch mixing then, behind the slaking certain hour, extrudes preforming on the equipment horizontal pushing as conventional production method, extrude the back and adopt auxiliary agent to carry out drying, then through the high temperature sintering heart yearn finished product that obtains insulating.
After adopting ISOPAR E series oil that freezing raw material is carried out mixing treatment, the insulating core line products can avoid tradition to adopt No. 120 aviation kerosines to carry out the cracking that mixing treatment caused, and the oily colorless and odorless of ISOPAR E series has improved the pollution to operating environment simultaneously.
The embodiment two of coaxial cable insulated layer manufacture method of the present invention
As shown in Figure 3, embodiment two and embodiment one are basic identical, and difference is to adopt vertical pushing to extrude the preforming step on the equipment and replace that embodiment's one extrude the preforming step horizontal pushing on the equipment.
The vertical equipment of pushing in the present embodiment is existing equipment.Adopt vertical push preforming after, overcome horizontal influence of pushing inner wire heart yearn gravity to product off-centre, make the product concentricity bring up to 15%, thereby improved the electric property qualification rate of insulating core line products greatly from horizontal 20% of the product of pushing.
For the line that further reduces insulating barrier directly fluctuates, adopt the modified model extrusion die on the equipment pushing of above-mentioned two embodiment, as shown in Figure 4, this modified model extrusion die has adopted and new has extruded angle 3, become footpath section 2 to adopt new length value.The extruding angle 3 and become the length span such as the following table of footpath section 2 of this modified model extrusion die 1:
| Extrude angle a (degree) | 16 | 18 | 20 | 22 | 24 |
| Become footpath segment length d (millimeter) | 3 | 4.25 | 5.5 | 6.75 | 8 |
After adopting the modified model extrusion die of above-mentioned parameter, extrude expansion rate and reduce greatly.Get 20 degree, when becoming footpath segment length d to get 5.5 millimeters, can reach 0% the effect of extruding expansion when extruding angle a.Thereby the line that greatly reduces the product insulating barrier directly fluctuates.
This modified model extrusion die is not only applicable to the Teflon raw material, also is suitable for the insulating material that other make coaxial cable, as polyethylene, perfluoroethylene-propylene (copolymer) etc.
Claims (9)
1, a kind of coaxial cable insulated layer manufacture method, comprise and earlier the Teflon raw material is carried out freezing processing, it is even then freezing raw material to be carried out batch mixing, behind the slaking certain hour, extrude preforming on the equipment horizontal pushing, extrude the back and adopt auxiliary agent to carry out drying, then through the high temperature sintering heart yearn finished product that obtains insulating; It is characterized in that, adopt ISOPAR E series oil that freezing raw material is carried out mixing treatment; And adopt the modified model extrusion die on the equipment described pushing, this modified model extrusion die extrude angle more than or equal to 16 degree smaller or equal to 24 degree scopes between, the one-tenth of this modified model extrusion die footpath segment length more than or equal to 3 millimeters smaller or equal to 8 millimeters scopes between.
2, coaxial cable insulated layer manufacture method according to claim 1 is characterized in that, adopts vertical pushing and extrudes the preforming step on the equipment and replace extruding the preforming step on the equipment horizontal pushing.
3, coaxial cable insulated layer manufacture method according to claim 1 and 2 is characterized in that, the angle of extruding of described modified model extrusion die is 22 degree, and described one-tenth footpath segment length is 6.75 millimeters.
4, coaxial cable insulated layer manufacture method according to claim 1 and 2 is characterized in that, the angle of extruding of described modified model extrusion die is 20 degree, and described one-tenth footpath segment length is 5.5 millimeters.
5, coaxial cable insulated layer manufacture method according to claim 1 and 2 is characterized in that, the angle of extruding of described modified model extrusion die is 18 degree, and described one-tenth footpath segment length is 4.25 millimeters.
6, a kind of coaxial cable insulated layer mfg. moulding die, comprise along what mould vertically was provided with and extrude angle and be arranged on the directly section that becomes that this extrudes the angle front end, it is characterized in that, described extrude angle more than or equal to 16 degree smaller or equal to 24 degree, described one-tenths directly segment length more than or equal to 3 millimeters smaller or equal to 8 millimeters.
7, coaxial cable insulated layer mfg. moulding die according to claim 6 is characterized in that, the described angle of extruding is 22 degree, and described one-tenth footpath segment length is 6.75 millimeters.
8, coaxial cable insulated layer mfg. moulding die according to claim 6 is characterized in that, the described angle of extruding is 20 degree, and described one-tenth footpath segment length is 5.5 millimeters.
9, coaxial cable insulated layer mfg. moulding die according to claim 6 is characterized in that, the described angle of extruding is 18 degree, and described one-tenth footpath segment length is 4.25 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100604755A CN100536037C (en) | 2006-04-24 | 2006-04-24 | Process for manufacturing coaxial cable insulation layer and its die equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100604755A CN100536037C (en) | 2006-04-24 | 2006-04-24 | Process for manufacturing coaxial cable insulation layer and its die equipment |
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| Publication Number | Publication Date |
|---|---|
| CN101064201A CN101064201A (en) | 2007-10-31 |
| CN100536037C true CN100536037C (en) | 2009-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100604755A Active CN100536037C (en) | 2006-04-24 | 2006-04-24 | Process for manufacturing coaxial cable insulation layer and its die equipment |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029696A (en) * | 2010-10-27 | 2011-04-27 | 上海长园电子材料有限公司 | Production equipment for finished product of polytetrafluoroethylene (PTFE) |
| CN103871543A (en) * | 2014-03-13 | 2014-06-18 | 苏州科茂电子材料科技有限公司 | Preparation method of insulator in extremely-thin coaxial cable |
| CN106328264A (en) * | 2015-07-08 | 2017-01-11 | 湖北宇洪光电实业有限公司 | Bundled signal cable for 4G communication base station and cable core insulating layer pushing method of bundled signal cable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4493747A (en) * | 1982-01-27 | 1985-01-15 | At&T Technologies, Inc. | Method for insulating conductors with a crystalline plastic material |
| US4663095A (en) * | 1983-09-29 | 1987-05-05 | Habia Cable Sa | Method of making a foamed insulation coaxial cable for hyperfrequencies transmissions |
| DE3903398A1 (en) * | 1989-02-02 | 1990-08-09 | Akad Wissenschaften Ddr | Drawing die and method for the use thereof |
| CN2454873Y (en) * | 2000-11-10 | 2001-10-17 | 广东南洋电缆厂有限公司 | Right-angled machine head of wire-cable extruder |
-
2006
- 2006-04-24 CN CNB2006100604755A patent/CN100536037C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4493747A (en) * | 1982-01-27 | 1985-01-15 | At&T Technologies, Inc. | Method for insulating conductors with a crystalline plastic material |
| US4663095A (en) * | 1983-09-29 | 1987-05-05 | Habia Cable Sa | Method of making a foamed insulation coaxial cable for hyperfrequencies transmissions |
| DE3903398A1 (en) * | 1989-02-02 | 1990-08-09 | Akad Wissenschaften Ddr | Drawing die and method for the use thereof |
| CN2454873Y (en) * | 2000-11-10 | 2001-10-17 | 广东南洋电缆厂有限公司 | Right-angled machine head of wire-cable extruder |
Non-Patent Citations (2)
| Title |
|---|
| 聚四氟乙烯内管质量对其压力软管性能的影响. 钱知勉.有机氟工业，第4期. 2003 |
| 聚四氟乙烯内管质量对其压力软管性能的影响. 钱知勉.有机氟工业，第4期. 2003 * |
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| CN101064201A (en) | 2007-10-31 |
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Owner name: SHENZHEN KINGSIGNAL TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHENZHEN KINGSIGNAL CABLE TECH CO., LTD. |
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Address after: 518000 Shenzhen Nanshan District science and technology in the road, Shenzhen Software Park, building 9, No. two, No. 302 Patentee after: KINGSIGNAL TECHNOLOGY Co.,Ltd. Address before: 518000 room 314-315, technology innovation service center, 1 Qilin Road, Shenzhen, Guangdong, Nanshan District Patentee before: JINXINNUO CABLES TECH Co.,Ltd. |
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Effective date of registration: 20190121 Address after: 101300 room 711, 2 building, 1 Jin Hang Zhong Road, Shunyi District, Beijing (Tianzhu comprehensive bonded zone -031) Patentee after: Beijing culture science and technology finance leasing Limited by Share Ltd. Address before: 518000 Shenzhen Nanshan Science and Technology Secondary Road Shenzhen Software Park 9 # Building 302 Patentee before: KINGSIGNAL TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20200214 Address after: 518000 Room 302, building 9, Shenzhen Software Park, Keji Zhonger Road, Nanshan District, Shenzhen City, Guangdong Province Patentee after: KINGSIGNAL TECHNOLOGY Co.,Ltd. Address before: 101300, room 711, building 2, building 1, Golden Road, Beijing, Shunyi District (Tianzhu comprehensive bonded area, -031) Patentee before: Beijing culture science and technology finance leasing Limited by Share Ltd. |
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Address after: 518000, 1st and 19th floors of Building 1, Jinxinnuo, No. 50 Baolong Second Road, Baolong Community, Baolong Street, Longgang District, Shenzhen City, Guangdong Province Patentee after: KINGSIGNAL TECHNOLOGY Co.,Ltd. Country or region after: China Address before: Room 302, Building 9#, Shenzhen Software Park, Keji Middle 2nd Road, Nanshan District, Shenzhen, Guangdong 518000 Patentee before: KINGSIGNAL TECHNOLOGY Co.,Ltd. Country or region before: China |
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