CN103105465B - The characterization system of cross-linking radiation pipe material product degree of crosslinking and characterizing method - Google Patents
The characterization system of cross-linking radiation pipe material product degree of crosslinking and characterizing method Download PDFInfo
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- CN103105465B CN103105465B CN201210581593.6A CN201210581593A CN103105465B CN 103105465 B CN103105465 B CN 103105465B CN 201210581593 A CN201210581593 A CN 201210581593A CN 103105465 B CN103105465 B CN 103105465B
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Abstract
Present invention is disclosed a kind of characterization system and characterizing method of cross-linking radiation pipe material product degree of crosslinking, wherein this characterization system comprises: temperature control baking oven, in order to provide the circulated heated air of temperature stabilization; Thermal cycle air channel, with described temperature control baking oven UNICOM; Outer diameter detecting instrument, is arranged at described hot air circulation duct both sides, to detect the outside dimension of the inside tubing to be measured in described thermal cycle air channel; Controlled processing unit, is electrically connected with described outer diameter detecting instrument, to receive, to analyze the data that described outer diameter detecting instrument detects; Gas ducting, is connected with tubing to be measured; Pressure regulating valve device, is electrically connected with described controlled processing unit, and is connected with described gas ducting, to regulate tubing air pressure inside to be measured; Input-output unit, is connected with described controlled processing unit.Compared to the method for mensuration irradiation tubing degree of crosslinking of the prior art, improve the accuracy that degree of crosslinking detects, to actual production, there is important directive significance.
Description
Technical field
The present invention relates to macromolecular material production technical field, and in particular to a kind of characterization system of cross-linking radiation pipe material product degree of crosslinking and characterizing method.
Background technology
The important method of radiation crosslinking modified part polymer modification, the method widely uses with multiple field, and in the production run as electric wire, expanded material, heat-shrink tube product, wherein the application of electric wire, heat-shrink tube is more extensive.Cross-linking radiation relies on the electron irradiation after accelerating in product, make to be converted into reticulate texture by the strand of irradiation products by linear structure, give the mechanical properties such as the better intensity of material, give shape of product memory function, add that this modification mode modification time is short, irradiation process simple, efficiency high, be widely used in the production run of heat-shrink tube.
Degree of crosslinking is weigh the important symbol of irradiation products quality, the size of degree of crosslinking itself has a significant impact properties of product, following process impact is carried out significantly to the product after irradiation simultaneously, the too low product mechanical property of degree of crosslinking does not easily reach requirement, degree of crosslinking is too high, high to the technological requirement of follow-up operation, even cannot effectively process, therefore the control of degree of crosslinking becomes the important controling parameters in irradiation process.
But there are obvious relative merits in the two kinds of characterizing methods measuring the degree of crosslinking of irradiation products at present: 1, extraction measures gel content, the method can the degree of crosslinking of comparatively Accurate Determining product, but working sample length consuming time, the mensuration duration of single sample is more than 48 hours, the requirement obtaining degree of crosslinking data in actual production process within the extremely short time cannot be met, in reality, seldom adopt the manner.2, heat extends determination method, irradiation products calculates according to the size of sectional area by this method axially to bear a heavy burden, product is positioned over certain hour in the baking oven of uniform temperature, the length variations stretched by measurement products heavy burden calculates hot extensibility, side characterizes the degree of crosslinking of product, but this method only characterizes the tensile strain rate of product axis, due to the orientation effect of products molecule chain in irradiation tubing extrusion, there is greatest differences in product axis and radial direction, and the application point of expansion process is the expansion change of radial internal-and external diameter below, therefore adopt hot extension mode as the state modulator of irradiation, there is accuracy not high, rationality is inadequate, add that test gimmick error strengthens, simultaneously which and actual expansion process to arrange difference huge, effectively cannot instruct and reference expansion process.
Summary of the invention
In view of this, the present invention is intended to solve in prior art, the technical matterss such as the measurement of the degree of crosslinking of irradiation products is inaccurate, and error is larger.
The invention provides a kind of characterization system of cross-linking radiation pipe material product degree of crosslinking, it comprises: temperature control baking oven, in order to provide the circulated heated air of temperature stabilization; Thermal cycle air channel, with described temperature control baking oven UNICOM; Outer diameter detecting instrument, is arranged at described hot air circulation duct both sides, to detect the outside dimension of the inside tubing to be measured in described thermal cycle air channel; Controlled processing unit, is electrically connected with described outer diameter detecting instrument, to receive, to analyze the data that described outer diameter detecting instrument detects; Gas ducting, is connected with tubing to be measured; Pressure regulating valve device, is electrically connected with described controlled processing unit, and is connected with described gas ducting, to regulate tubing air pressure inside to be measured; Input-output unit, is connected with described controlled processing unit.
Further, the temperature range of described temperature control baking oven is 23 ~ 200 DEG C, and accuracy of temperature control is ± 2 DEG C.
Further, described tubing stationary installation, is arranged at the two ends in described thermal cycle air channel, in order to fixing tubing to be measured.
Further, also comprise: temperature probe is arranged in described thermal cycle air channel, for measuring the temperature in described thermal cycle air channel.
Further, both sides, described thermal cycle air channel have high-transparent glass window.
Further, described input-output unit is a touch-screen.
The present invention also provides a kind of characterizing method of cross-linking radiation pipe material product degree of crosslinking, and it comprises the following steps: opening temp. control baking oven, and is warming up to design temperature; Measure internal diameter and the wall thickness of good tubing to be measured, tubing to be measured is fixed in thermal cycle air channel; By tubing one end to be measured press seal, the other end is connected with gas ducting; The hot-air of temperature control baking oven is sucked in thermal cycle air channel and reaches design temperature; Treat test tube material to carry out pneumatic compression; The external diameter Data Concurrent utilizing outer diameter detecting instrument to record tubing to be measured is delivered to controlled processing unit and is carried out Treatment Analysis; By input-output unit Graphics Processing analysis result.
In sum, the characterization system of cross-linking radiation pipe material product degree of crosslinking provided by the invention and characterizing method are compared to the method for mensuration irradiation tubing degree of crosslinking of the prior art, degree of crosslinking can be caused to detect inaccurate problem because the footpath thermotropism extension difference that causes of molecular chain orientation difference that causes in process is different etc. except extruding in manufacturing procedure, improve the accuracy of detection, to actual production, there is important directive significance.
Accompanying drawing explanation
Figure 1 shows that the characterization system structural representation of the cross-linking radiation pipe material product degree of crosslinking that one embodiment of the invention provides;
Figure 2 shows that the process flow diagram of the characterizing method of the cross-linking radiation pipe material product degree of crosslinking that one embodiment of the invention provides.
Embodiment
For making object of the present invention, feature becomes apparent, and is further described the specific embodiment of the present invention below in conjunction with accompanying drawing.
Refer to Fig. 1, it is depicted as the characterization system structural representation of the cross-linking radiation pipe material product degree of crosslinking that one embodiment of the invention provides.
The characterization system of this cross-linking radiation pipe material product degree of crosslinking, it comprises: temperature control baking oven 110, in order to provide the circulated heated air of temperature stabilization; Thermal cycle air channel 120, with described temperature control baking oven 110 UNICOM; Outer diameter detecting instrument 130, is arranged at described hot air circulation duct 120 both sides, with the outside dimension of the inside detecting described thermal cycle air channel tubing 200 to be measured; Controlled processing unit 140, is electrically connected with described outer diameter detecting instrument 130, to receive, to analyze the data that described outer diameter detecting instrument 130 detects; Gas ducting 150, is connected with tubing 200 to be measured; Pressure regulating valve device 160, is electrically connected with described controlled processing unit 140, and is connected with described gas ducting 150, to regulate tubing 200 air pressure inside to be measured; Input-output unit 170, is connected with described controlled processing unit 140.In order to the parameter such as design temperature, air pressure, and output detections Treatment Analysis result.
Further, the temperature range of described temperature control baking oven 110 is 23 ~ 200 DEG C, and accuracy of temperature control is ± 2 DEG C.
Further, also comprise: described tubing stationary installation 180, be arranged at the two ends in described thermal cycle air channel 120, in order to fixing tubing 200 to be measured.
Further, also comprise: temperature probe 190 is arranged in described thermal cycle air channel 120, for measuring the temperature in described thermal cycle air channel 120.
Further, both sides, described thermal cycle air channel 120 have high-transparent glass window 121.
Further, described input-output unit 170 is a touch-screen, conveniently carries out inputting and showing.
Refer to Fig. 2, the embodiment of the present invention also provides a kind of characterizing method of cross-linking radiation pipe material product degree of crosslinking, and it comprises the following steps:
S310 opening temp. control baking oven 110, and be warming up to design temperature;
S320 has measured internal diameter and the wall thickness of tubing 200 to be measured, is fixed in thermal cycle air channel 120 by tubing 200 to be measured;
S330 is by tubing 200 one end to be measured press seal, and the other end is connected with gas ducting 150;
The hot-air of temperature control baking oven 110 sucks in thermal cycle air channel 120 and reaches design temperature by S340;
S350 treats test tube material 200 and carries out pneumatic compression;
The external diameter Data Concurrent that S360 utilizes outer diameter detecting instrument 130 to record tubing to be measured is delivered to controlled processing unit 140 and is carried out Treatment Analysis;
S370 shows check processing analysis result by input-output unit 170.
Specifically details are as follows for this characterizing method:
First temperature control baking oven 110 is opened, and be warming up to assigned temperature, connection air holes flapper closure now between thermal cycle air channel 120 and temperature control baking oven 110, the internal diameter of Simultaneously test tubing 200 good to be measured and wall thickness, tubing 200 to be measured is installed in tubing stationary installation 180, near one end press seal of the tubing to be measured 200 of blower fan 3, the other end is connected with fast connecting joint 2, and tubing 200 to be measured is connected with gas ducting 7.The upper cover in thermal cycle air channel built simultaneously and seal, arrive after assigned temperature until temperature control baking oven 110 temperature, open the connecting hole baffle plate between thermal cycle air channel 120 and temperature control baking oven 110, open motor 400 switch simultaneously and drive blower fan 300, the hot-air of temperature control baking oven 110 is sucked in thermal cycle air channel 120, the internal diameter wall thickness parameter of tubing 200 to be measured is passed through input-output unit 170 simultaneously, as touch-screen input, when temperature in thermal cycle air channel 120 reaches design temperature, by pressing biased switch in the switch opens on touch-screen, pressure regulating valve device 160 exports corresponding interior pressure as requested, be input in tubing 200 to be measured by gas ducting 150, measured external diameter data are sent to controlled processing unit 140 by outer diameter detecting instrument 130 simultaneously, and be shown on input-output unit 170, along with the increase of tubing 200 air pressure inside to be measured, real-time rendering goes out the outer diametal curve of tubing 200 to be measured, treat that the time arrives the time arranged, according to the variable quantity of external diameter, controlled processing unit 140 calculates treats test tube change in outside diameter, obtain the parameters such as the corresponding speed of external diameter change simultaneously, in embodiments of the present invention, according to the difference of process characteristic, the mensuration mode of different mode can be increased when controlled processing unit 140 is arranged, realizing various modes can the change in outside diameter of particular case, rate of change parameter, and storage and the analytic function of data can be realized.
In sum, the characterization system of the cross-linking radiation pipe material product degree of crosslinking that the embodiment of the present invention provides and characterizing method simulate the production technology of actual expanding thermal shrinkage tube operation, the expanding thermal shrinkage tube operation that can fully and at present generally use combine, can the load thermal deformation of accurate characterization radial direction.Compared to the method for mensuration irradiation tubing degree of crosslinking of the prior art, degree of crosslinking can be caused to detect inaccurate problem because the footpath thermotropism extension difference that causes of molecular chain orientation difference that causes in process is different etc. except extruding in manufacturing procedure, improve the accuracy of detection, to actual production, there is important directive significance.
Although the present invention discloses as above with preferred embodiment; so itself and be not used to limit the present invention; have in any art and usually know the knowledgeable; without departing from the spirit and scope of the present invention; when being used for a variety of modifications and variations, therefore protection scope of the present invention is when being as the criterion depending on those as defined in claim.
Claims (5)
1. a characterization system for cross-linking radiation pipe material product degree of crosslinking, is characterized in that, comprising:
Temperature control baking oven, in order to provide the circulated heated air of temperature stabilization;
Thermal cycle air channel, with described temperature control baking oven UNICOM, wherein, both sides, described thermal cycle air channel have high-transparent glass window;
Outer diameter detecting instrument, is arranged at both sides, described thermal cycle air channel, to detect the outside dimension of the inside tubing to be measured in described thermal cycle air channel;
Controlled processing unit, is electrically connected with described outer diameter detecting instrument, to receive, to analyze the data that described outer diameter detecting instrument detects;
Gas ducting, is connected with tubing to be measured;
Pressure regulating valve device, is electrically connected with described controlled processing unit, and is connected with described gas ducting, to regulate tubing air pressure inside to be measured;
Input-output unit, is connected with described controlled processing unit;
Tubing stationary installation, is arranged at the two ends in described thermal cycle air channel, in order to fixing tubing to be measured.
2. characterization system according to claim 1, is characterized in that, the temperature range of described temperature control baking oven is 23 ~ 200 DEG C, and accuracy of temperature control is ± 2 DEG C.
3. characterization system according to claim 1, is characterized in that, also comprises: temperature probe is arranged in described thermal cycle air channel, for measuring the temperature in described thermal cycle air channel.
4. characterization system according to claim 1, is characterized in that, described input-output unit is a touch-screen.
5. a characterizing method for cross-linking radiation pipe material product degree of crosslinking, is characterized in that, comprises the following steps:
Opening temp. control baking oven, and be warming up to design temperature;
Measure internal diameter and the wall thickness of good tubing to be measured, tubing to be measured is fixed in thermal cycle air channel;
By tubing one end to be measured press seal, the other end is connected with gas ducting;
The hot-air of temperature control baking oven is sucked in thermal cycle air channel and reaches design temperature;
Treat test tube material to carry out pneumatic compression;
The external diameter Data Concurrent utilizing outer diameter detecting instrument to record tubing to be measured is delivered to controlled processing unit and is carried out Treatment Analysis;
By input-output unit Graphics Processing analysis result.
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| CN201210581593.6A CN103105465B (en) | 2012-12-27 | 2012-12-27 | The characterization system of cross-linking radiation pipe material product degree of crosslinking and characterizing method |
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| CN201210581593.6A CN103105465B (en) | 2012-12-27 | 2012-12-27 | The characterization system of cross-linking radiation pipe material product degree of crosslinking and characterizing method |
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| CN103105465B true CN103105465B (en) | 2016-01-27 |
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| CN1704231A (en) * | 2004-06-04 | 2005-12-07 | 中科英华高技术股份有限公司 | Thermal contraction inflation continuous expanding method and expanding device |
| CN101013026A (en) * | 2007-02-05 | 2007-08-08 | 深圳深蓝精机有限公司 | Laser outer diameter detecting instrument |
| CN101574847A (en) * | 2009-03-19 | 2009-11-11 | 广东联塑科技实业有限公司 | Device and method for on-line diameter expansion of plastic pipes |
| CN201867175U (en) * | 2010-11-26 | 2011-06-15 | 上海伟星新型建材有限公司 | Real-time on-line monitoring device for outer diameter of pipes |
| CN102276928A (en) * | 2011-06-17 | 2011-12-14 | 湖北祥源新材科技有限公司 | Olefin rubber high-flame-retardant oil-resistant heat-shrinkable bush and preparation method thereof |
| CN202994767U (en) * | 2012-12-27 | 2013-06-12 | 上海长园电子材料有限公司 | Representation system for degree of crosslinking of irradiation crosslinking tube product |
-
2012
- 2012-12-27 CN CN201210581593.6A patent/CN103105465B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1704231A (en) * | 2004-06-04 | 2005-12-07 | 中科英华高技术股份有限公司 | Thermal contraction inflation continuous expanding method and expanding device |
| CN101013026A (en) * | 2007-02-05 | 2007-08-08 | 深圳深蓝精机有限公司 | Laser outer diameter detecting instrument |
| CN101574847A (en) * | 2009-03-19 | 2009-11-11 | 广东联塑科技实业有限公司 | Device and method for on-line diameter expansion of plastic pipes |
| CN201867175U (en) * | 2010-11-26 | 2011-06-15 | 上海伟星新型建材有限公司 | Real-time on-line monitoring device for outer diameter of pipes |
| CN102276928A (en) * | 2011-06-17 | 2011-12-14 | 湖北祥源新材科技有限公司 | Olefin rubber high-flame-retardant oil-resistant heat-shrinkable bush and preparation method thereof |
| CN202994767U (en) * | 2012-12-27 | 2013-06-12 | 上海长园电子材料有限公司 | Representation system for degree of crosslinking of irradiation crosslinking tube product |
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