CN116061475A - Preparation method of ultrathin flexible pipe and device for preparing ultrathin flexible pipe - Google Patents
Preparation method of ultrathin flexible pipe and device for preparing ultrathin flexible pipe Download PDFInfo
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- CN116061475A CN116061475A CN202211737699.0A CN202211737699A CN116061475A CN 116061475 A CN116061475 A CN 116061475A CN 202211737699 A CN202211737699 A CN 202211737699A CN 116061475 A CN116061475 A CN 116061475A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000007787 solid Substances 0.000 claims abstract description 72
- 239000007788 liquid Substances 0.000 claims abstract description 49
- 238000010438 heat treatment Methods 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims abstract description 44
- 229920000642 polymer Polymers 0.000 claims abstract description 41
- 238000002156 mixing Methods 0.000 claims abstract description 39
- 230000001680 brushing effect Effects 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 27
- 238000002844 melting Methods 0.000 claims abstract description 9
- 230000008018 melting Effects 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 45
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 235000019271 petrolatum Nutrition 0.000 claims description 9
- 239000004264 Petrolatum Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 229940066842 petrolatum Drugs 0.000 claims description 7
- 239000012188 paraffin wax Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 230000002526 effect on cardiovascular system Effects 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 238000000338 in vitro Methods 0.000 claims description 3
- 230000002572 peristaltic effect Effects 0.000 claims description 3
- 239000008236 heating water Substances 0.000 claims description 2
- 235000019809 paraffin wax Nutrition 0.000 claims description 2
- 239000004973 liquid crystal related substance Substances 0.000 abstract 2
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000007711 solidification Methods 0.000 description 5
- 230000008023 solidification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012404 In vitro experiment Methods 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229940099259 vaseline Drugs 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
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- Engineering & Computer Science (AREA)
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- Moulding By Coating Moulds (AREA)
Abstract
The application discloses a preparation method of an ultrathin flexible pipe and a device for preparing the ultrathin flexible pipe. Wherein, the liquid crystal display device comprises a liquid crystal display device, the method comprises the following steps: brushing the blending solution on the surface of the pipe fitting mold, and forming a solid demolding layer after the blending solution on the surface of the pipe fitting mold is solidified; brushing the flexible pipe material polymer liquid on the surface of the solid demolding layer uniformly, and forming an ultrathin flexible pipe with a target thickness after the flexible pipe material polymer liquid is solidified; wherein the melting point of the solid demolding layer is lower than that of the ultrathin flexible pipe; and the solid demolding layer is converted into a liquid state from a solid state by heating the pipe fitting mold so as to demold the ultrathin flexible pipe from the pipe fitting mold, thereby obtaining the ultrathin flexible pipe. Through the technical scheme of this application, can reduce the cost of preparation of ultra-thin flexible pipe to be difficult for taking place the damage when ultra-thin flexible pipe drawing of patterns.
Description
Technical Field
The application relates to the technical field of thin-wall pipe preparation, in particular to a preparation method of an ultrathin flexible pipe and a device for preparing the ultrathin flexible pipe.
Background
Ultrathin flexible tubes (also known as thin-walled tubes) are often used to simulate blood vessels in medical in vitro simulated tissue experiments to help researchers study different pathological conditions, but the cost of manufacturing ultrathin flexible tubes is high and the walls of low modulus material ultrathin flexible tubes are prone to breakage when the tubes are demolded.
Disclosure of Invention
The application provides a preparation method of an ultrathin flexible pipe and a device for preparing the ultrathin flexible pipe. The preparation cost of the ultrathin flexible pipe can be reduced, and the ultrathin flexible pipe is not easy to damage during demolding.
In a first aspect, an embodiment of the present application provides a method for manufacturing an ultrathin flexible tube, including: brushing the blending solution on the surface of a pipe fitting die, and solidifying the blending solution on the surface of the pipe fitting die to form a solid demolding layer; brushing the flexible pipe material polymer liquid on the surface of the solid demolding layer uniformly, and curing the flexible pipe material polymer liquid to form an ultrathin flexible pipe with a target thickness; wherein the melting point of the solid demolding layer is lower than that of the ultrathin flexible pipe; and the solid demolding layer is converted into a liquid state from a solid state by heating the pipe fitting mold, so that the ultrathin flexible pipe is demolded from the pipe fitting mold, and the ultrathin flexible pipe is obtained.
In the technical scheme, the blending solution can be brushed on the surface of the pipe fitting die and solidified to form a solid demolding layer, and the flexible pipe material polymer liquid is uniformly brushed on the surface of the solid demolding layer to be solidified to form an ultrathin flexible pipe with a target thickness, so that the solid demolding layer is converted into a liquid state by heating the pipe fitting die to demold the ultrathin flexible pipe from the pipe fitting die. The process is simple, the preparation cost is low, and the ultrathin flexible pipe is not easy to damage during demolding.
In one implementation, the blend solution comprises at least petrolatum and paraffin wax as its constituent components.
In an alternative implementation, the petrolatum is present in the blending solution in a volume ratio ranging from 10% to 50%.
In one implementation, the brushing of the blending solution on the surface of the pipe mold, until the blending solution on the surface of the pipe mold solidifies to form the solid release layer, comprises: forming a constant temperature field on the whole pipe fitting die by heating the pipe fitting die; brushing the blending solution on the surface of the pipe fitting mold, stopping heating the pipe fitting mold, and curing the blending solution on the surface to form a solid demolding layer.
In this technical scheme, through implementing this application embodiment, before brushing the blending solution at the surface of pipe fitting mould, can form the constant temperature field with the whole of pipe fitting mould to avoid blending solution to solidify in brushing the in-process, guarantee that blending solution brush evenly, thereby make solid release layer change into liquid in order to carry out the drawing of patterns with ultra-thin flexible pipe from the pipe fitting mould through heating pipe fitting mould. The process is simple, the preparation cost is low, and the ultrathin flexible pipe is not easy to damage during demolding.
In one implementation, the brushing the flexible pipe material polymer liquid on the surface of the solid demolding layer uniformly, and curing the flexible pipe material polymer liquid to form an ultrathin flexible pipe with a target thickness comprises: vertically placing the pipe fitting mould covered with the solid demoulding layer, and uniformly brushing flexible pipe material polymer liquid on the surface of the solid demoulding layer; and after the flexible pipe material polymer liquid is cured, reversing the die, vertically placing, and repeatedly brushing and curing until the thickness of the flexible pipe material polymer cured on the pipe fitting die reaches a target thickness, so that an ultrathin flexible pipe with the target thickness is formed on the surface of the solid demolding layer.
In the technical scheme, the surface of the solid demolding layer formed by solidifying the blending solution can be repeatedly brushed with the flexible pipe material polymer liquid until the thickness of the ultrathin flexible pipe formed by solidifying the flexible pipe material polymer liquid reaches the target thickness, so that the mechanical property of the obtained ultrathin flexible pipe can be regulated and controlled. Meanwhile, the process is simple, the preparation cost is low, and the ultrathin flexible pipe is not easy to damage during demolding.
In one implementation, after obtaining the ultra-thin flexible pipe, the method further comprises: and flushing the inner wall of the ultrathin flexible pipe by water with a preset temperature, and removing the residual solid demolding layer formed by cooling from the inner wall of the ultrathin flexible pipe.
In one implementation, the ultra-thin flexible tube is used for cardiovascular in vitro experiments.
In a second aspect, embodiments of the present application provide a device for manufacturing an ultrathin flexible tube, including: a pipe fitting die; the heating module is connected with the pipe fitting die and is used for heating the pipe fitting die; wherein the method according to the first aspect is applied to the device for producing an ultra thin flexible tube.
In one implementation, the apparatus further comprises: and the bracket is used for vertically placing the pipe fitting die.
In one implementation, the tube mold is a hollow structure; wherein the heating module comprises: the heating unit is arranged in the hollow structure of the pipe fitting die, and the heating unit heats the pipe fitting die through power supply of the power supply unit.
In one implementation, the tube mold is a hollow structure; wherein the heating module comprises: the water bath kettle is used for heating water in the water bath kettle under the condition of heating; the power equipment is used for conveying water in the water bath kettle into the hollow structure of the pipe fitting die; the water inlet of the power equipment is connected with the water bath kettle through a water pipe, the water outlet of the power equipment is connected with one end of the pipe fitting die through the water pipe, and the other end of the pipe fitting die is arranged on the water bath kettle.
In an alternative implementation, the power device is a peristaltic pump.
In one implementation, the number of tube dies is a plurality, wherein each tube die is sized differently.
It should be understood that the description of this section is not intended to identify key or critical features of the embodiments of the application or to delineate the scope of the application. Other features of the present application will become apparent from the description that follows.
Drawings
The drawings are for better understanding of the present solution and do not constitute a limitation of the present application. Wherein:
FIG. 1 is a schematic diagram of a method for manufacturing an ultrathin flexible tube according to an embodiment of the application;
FIG. 2 is a schematic illustration of another method of making an ultrathin flexible tube according to an embodiment of the application;
FIG. 3 is a schematic illustration of yet another method of making an ultra-thin flexible pipe provided in an embodiment of the present application;
FIG. 4 is a schematic illustration of an apparatus for producing ultra-thin flexible tubing provided in an embodiment of the present application;
FIG. 5 is a schematic illustration of another apparatus for making ultra-thin flexible tubing provided in an embodiment of the present application;
FIG. 6 is a schematic illustration of yet another apparatus for making ultra-thin flexible tubing provided in an embodiment of the present application;
fig. 7 is a schematic view of yet another apparatus for making ultra-thin flexible tubing provided in an embodiment of the present application.
Detailed Description
Exemplary embodiments of the present application are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present application to facilitate understanding, and should be considered as merely exemplary. Accordingly, one of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
Referring to fig. 1, fig. 1 is a schematic diagram of a method for manufacturing an ultrathin flexible tube according to an embodiment of the application. As shown in fig. 1, the method may include, but is not limited to, the steps of:
step S101: brushing the blending solution on the surface of the pipe fitting die, and curing the blending solution on the surface of the pipe fitting die to form a solid demolding layer.
Wherein, in some embodiments of the present application, the surface of the pipe die may be an outer surface of the pipe die.
In one implementation, the blending solution comprises at least vaseline and paraffin.
In the embodiment of the present application, the paraffin may be low-temperature paraffin.
For example, a plurality of materials including at least vaseline and low-temperature paraffin are melted by heating, so that the plurality of materials are melted to form a blend solution, the blend solution is uniformly brushed on the outer surface of the pipe mold, the blend solution is waited for solidification, and a solid demolding layer is formed on the surface of the pipe mold.
In an alternative implementation, the petrolatum is present in the blending solution in a volume ratio ranging from 10% to 50%.
In some embodiments of the present application, the petrolatum may range from 25% to 30% by volume in the blending solution. For example, the petrolatum may be 27% by volume in the blending solution.
Step S102: and uniformly brushing the flexible pipe material polymer liquid on the surface of the solid demolding layer, and curing the flexible pipe material polymer liquid to form the ultrathin flexible pipe with the target thickness.
Wherein, in some embodiments of the present application, the surface of the solid release layer may be an outer surface of the solid release layer.
For example, the flexible pipe material polymer liquid for preparing the ultrathin flexible pipe is uniformly brushed on the surface of the solid demolding layer, so that the thickness of the flexible pipe material polymer liquid on the surface of the solid demolding layer reaches a preset target thickness, and the polymer liquid is waited for solidification, so that the ultrathin flexible pipe with the target thickness is formed.
Wherein in embodiments of the present application, the melting point of the solid release layer is lower than the melting point of the ultrathin flexible tube.
Step S103: and the solid demolding layer is converted into a liquid state from a solid state by heating the pipe fitting mold so as to demold the ultrathin flexible pipe from the pipe fitting mold, thereby obtaining the ultrathin flexible pipe.
For example, by heating the pipe mold, the temperature of the pipe mold is higher than the melting point of the solid demolding layer and lower than the melting point of the ultrathin flexible pipe, so that the solid demolding layer on the surface of the pipe mold is heated to change phase, and is changed from solid state to liquid state, so that the ultrathin flexible pipe is demolded from the pipe mold, and the ultrathin flexible pipe is obtained.
Through implementation of the embodiment of the application, the blending solution can be brushed on the surface of the pipe fitting die and solidified to form the solid demolding layer, and the flexible pipe material polymer liquid is uniformly brushed on the surface of the solid demolding layer to be solidified to form the ultrathin flexible pipe with the target thickness, so that the solid demolding layer is converted into a liquid state by heating the pipe fitting die to demold the ultrathin flexible pipe from the pipe fitting die. The process is simple, the preparation cost is low, and the ultrathin flexible pipe is not easy to damage during demolding.
In one implementation, the entirety of the pipe die may be formed into a constant temperature field prior to brushing the blending solution on the surface of the pipe die to avoid curing time differences of the blending solution during brushing. As an example, please refer to fig. 2, fig. 2 is a schematic diagram of another method for manufacturing an ultrathin flexible tube according to the embodiment of the application. As shown in fig. 2, the method may include, but is not limited to, the steps of:
step S201: and the pipe fitting die is integrally formed into a constant temperature field by heating the pipe fitting die.
For example, by heating the pipe mold, the pipe mold is heated as a whole to form a constant temperature field.
Step S202: brushing the blending solution on the surface of the pipe fitting mold, stopping heating the pipe fitting mold, and solidifying the blending solution on the surface to form a solid demolding layer.
For example, after the blending solution is uniformly brushed on the surface of the pipe mold, the heating of the pipe mold is stopped, the pipe mold is cooled, and the blending solution on the surface of the pipe mold is waited for solidification to form a solid demolding layer.
Step S203: and uniformly brushing the flexible pipe material polymer liquid on the surface of the solid demolding layer, and curing the flexible pipe material polymer liquid to form the ultrathin flexible pipe with the target thickness.
In the embodiment of the present application, step S203 may be implemented in any manner in each embodiment of the present application, which is not limited to this embodiment, and is not described in detail.
Step S204: and the solid demolding layer is converted into a liquid state from a solid state by heating the pipe fitting mold so as to demold the ultrathin flexible pipe from the pipe fitting mold, thereby obtaining the ultrathin flexible pipe.
In the embodiment of the present application, step S204 may be implemented in any manner in each embodiment of the present application, which is not limited to this embodiment, and is not described in detail.
Through implementing the embodiment of the application, before the blending solution is brushed on the surface of the pipe fitting die, the whole of the pipe fitting die can be formed into a constant temperature field so as to avoid solidification of the blending solution in the brushing process, ensure that the blending solution is uniformly brushed, and uniformly brush the flexible pipe material polymer liquid on the surface of the blending solution solidification solid demoulding layer so as to solidify and form the ultrathin flexible pipe with the target thickness. The process is simple, the preparation cost is low, and the ultrathin flexible pipe is not easy to damage during demolding.
In one implementation, the flexible tube material polymer liquid can be repeatedly brushed and cured on the surface of the solid demolding layer until the thickness of the flexible tube material polymer cured on the tube mold reaches the target thickness, so as to regulate and control the mechanical properties of the obtained ultrathin flexible tube. As an example, please refer to fig. 3, fig. 3 is a schematic diagram of a preparation method of another ultrathin flexible tube according to the embodiment of the application. As shown in fig. 3, the method may include, but is not limited to, the steps of:
step S301: brushing the blending solution on the surface of the pipe fitting die, and curing the blending solution on the surface of the pipe fitting die to form a solid demolding layer.
In the embodiment of the present application, step S301 may be implemented in any manner in each embodiment of the present application, which is not limited to this embodiment, and is not described in detail.
Step S302: the pipe fitting mould covered with the solid demoulding layer is vertically placed, and the flexible pipe material polymer liquid is evenly brushed on the surface of the solid demoulding layer.
For example, a pipe mold covered with a solid release layer is placed vertically and a flexible pipe material polymer liquid for preparing an ultra-thin flexible pipe is uniformly brushed on the surface of the solid release layer, so that the flexible pipe material polymer liquid maintains a uniform thickness at the same level under the action of gravity.
Step S303: after the liquid of the flexible pipe material polymer is cured, the mold is reversed and vertically placed, and the curing is repeatedly brushed until the thickness of the flexible pipe material polymer cured on the pipe mold reaches the target thickness, so that an ultrathin flexible pipe with the target thickness is formed on the surface of the solid demolding layer.
For example, after waiting for the curing of the flexible tube material polymer liquid on the surface of the solid release layer, the tube mold is inverted up and down and placed vertically, and the flexible tube material polymer liquid is uniformly brushed on the outer surface of the cured flexible tube material, so as to counteract uneven thickness at different positions caused by gravity and viscosity of the liquid when the flexible tube material polymer liquid is brushed in step S302. And repeatedly executing the step S302 and the step S303 according to actual needs, repeatedly brushing and solidifying until the thickness of the ultrathin flexible pipe formed by solidifying the flexible pipe material polymer liquid reaches a preset target thickness, and ensuring that the thicknesses of different positions of the ultrathin flexible pipe are the same.
Step S304: and the solid demolding layer is converted into a liquid state from a solid state by heating the pipe fitting mold so as to demold the ultrathin flexible pipe from the pipe fitting mold, thereby obtaining the ultrathin flexible pipe.
In the embodiment of the present application, step S304 may be implemented in any manner in each embodiment of the present application, which is not limited to this embodiment, and is not described in detail.
By implementing the embodiment of the application, the surface of the solid demolding layer formed by solidifying the blending solution can be repeatedly brushed with the flexible pipe material polymer liquid until the thickness of the ultrathin flexible pipe formed by solidifying the flexible pipe material polymer liquid reaches the target thickness, so that the mechanical property of the obtained ultrathin flexible pipe can be regulated and controlled. Meanwhile, the process is simple, the preparation cost is low, and the ultrathin flexible pipe is not easy to damage during demolding.
In some embodiments of the present application, after obtaining the ultra-thin flexible pipe, the method further comprises: and flushing the inner wall of the ultrathin flexible pipe by water with a preset temperature, and removing the residual solid demolding layer formed by cooling from the inner wall of the ultrathin flexible pipe.
In the embodiment of the application, the preset temperature is higher than or equal to the melting point of the solid demolding layer and lower than the melting point of the ultrathin flexible pipe.
For example, after the ultrathin flexible tube is obtained, when the residual solid demolding layer formed by cooling is attached to the inner wall of the ultrathin flexible tube, the inner wall of the ultrathin flexible tube can be washed by water with a preset temperature, so that the residual solid demolding layer formed by cooling attached to the inner wall of the ultrathin flexible tube is changed into a liquid state, and the residual solid demolding layer is washed and removed from the inner wall of the ultrathin flexible tube by water.
In some embodiments of the present application, the ultrathin flexible tube prepared in the above embodiments can be used for cardiovascular in vitro experiments.
For example, the ultrathin flexible tube prepared in the embodiment can be used for simulating blood vessels in an in vitro cardiovascular experiment.
Referring to fig. 4, fig. 4 is a schematic view of an apparatus for manufacturing an ultrathin flexible tube according to an embodiment of the application. As shown in fig. 4, the apparatus includes a pipe die 401; a heating module 402 connected to the pipe die 401, the heating module 402 being used for heating the pipe die 401.
The preparation method of the ultrathin flexible pipe provided by any embodiment of the application can be applied to the device to realize the preparation of the ultrathin flexible pipe.
In one implementation, the apparatus further comprises a support. As an example, referring to fig. 5, fig. 5 is a schematic view of another apparatus for preparing an ultrathin flexible tube according to an embodiment of the application. As shown in fig. 5, the apparatus further comprises a bracket 503 for vertically placing the pipe die 501. Wherein the pipe die 501 and the heating module 502 in fig. 5 have the same structure and function as the pipe die 401 and the heating module 402 in fig. 4.
Wherein in some embodiments of the present application, the bracket 503 may be provided with a clamping device for clamping the pipe die 501 to vertically place the pipe die 501. Alternatively, the bracket 503 may have a removable component thereon that secures the pipe die 501 to the bracket 503, so that the pipe die 501 may also be secured to the bracket 503 in a reverse orientation by the component.
In one implementation, the tube mold is a hollow structure; wherein, the heating module includes: the heating unit is arranged in the hollow structure of the pipe fitting die. As an example, referring to fig. 6, fig. 6 is a schematic view of yet another apparatus for preparing an ultra-thin flexible pipe provided in an embodiment of the present application. As shown in fig. 6, the apparatus further includes a heating unit 602 and a power supply unit 603. The heating unit 602 heats the pipe mold 601 by power supply of the power supply unit 603. The pipe die 601 in fig. 6 has the same structure and function as the pipe die 401 in fig. 4.
Wherein, in embodiments of the present application, heating unit 602 may be an electrical heating rod or an electrical heating plate.
In one implementation, the tube mold is a hollow structure; wherein, the heating module includes: water bath and power equipment. As an example, please refer to fig. 7, fig. 7 is a schematic diagram of yet another apparatus for preparing an ultrathin flexible tube provided in an embodiment of the application. As shown in fig. 7, the apparatus further comprises a water bath 702 and a power device 703. Wherein, the water bath 702 heats the water in the water bath 702 under the heating condition; the power equipment 703 is used for conveying water in the water bath 702 into the hollow structure of the pipe fitting die 701; wherein, the water inlet of power equipment 703 is connected with the water bath through the water pipe, and the delivery port of power equipment is connected with one end of pipe fitting mould 701 through the water pipe, and the other end of pipe fitting mould is arranged on water bath 702. Thus, the power equipment 703 can convey the heated water in the water bath 702 to the inside of the pipe fitting die 701, and the water flows down along the inner wall of the pipe fitting die 701 and flows back to the water bath 702, so that the water flow continuously circulates between the water bath 702 and the key equipment 701, the pipe fitting die 701 is continuously heated at constant temperature, and the pipe fitting die 701 integrally forms a constant temperature field.
Wherein, in the embodiment of the present application, the water bath 702 may be a constant temperature water bath. The pipe die 701 in fig. 7 has the same structure and function as the pipe die 401 in fig. 4.
In an alternative implementation, the power device 703 is a peristaltic pump.
In one implementation, the number of the pipe dies 401 is plural, wherein each pipe die has a different size.
For example, the pipe fitting mold is a plurality of pipe fitting molds with different sizes, so that the size of the ultrathin flexible pipe can be selected according to the size of the ultrathin flexible pipe to be prepared, the ultrathin flexible pipes with different specifications can be prepared quickly and at low cost, and the cost and time are saved.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present application may be performed in parallel, sequentially, or in a different order, provided that the desired results of the technical solutions of the present application are achieved, and are not limited herein.
The above embodiments do not limit the scope of the application. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application are intended to be included within the scope of the present application.
Claims (13)
1. A method of making an ultra-thin flexible pipe comprising:
brushing the blending solution on the surface of a pipe fitting die, and solidifying the blending solution on the surface of the pipe fitting die to form a solid demolding layer;
brushing the flexible pipe material polymer liquid on the surface of the solid demolding layer uniformly, and curing the flexible pipe material polymer liquid to form an ultrathin flexible pipe with a target thickness; wherein the melting point of the solid demolding layer is lower than that of the ultrathin flexible pipe;
and the solid demolding layer is converted into a liquid state from a solid state by heating the pipe fitting mold, so that the ultrathin flexible pipe is demolded from the pipe fitting mold, and the ultrathin flexible pipe is obtained.
2. The method of claim 1, wherein the blend solution comprises at least petrolatum and paraffin wax.
3. The method of claim 2, wherein the petrolatum is present in the blending solution in a volume ratio ranging from 10% to 50%.
4. The method of claim 1, wherein brushing the blend solution on the surface of the pipe die and waiting for the blend solution on the surface of the pipe die to solidify to form the solid release layer comprises:
forming a constant temperature field on the whole pipe fitting die by heating the pipe fitting die;
brushing the blending solution on the surface of the pipe fitting mold, stopping heating the pipe fitting mold, and curing the blending solution on the surface to form a solid demolding layer.
5. The method of claim 1, wherein said brushing the flexible tubing material polymer liquid uniformly over the surface of the solid release layer, until the flexible tubing material polymer liquid solidifies to form an ultra-thin flexible tube of a target thickness, comprises:
vertically placing the pipe fitting mould covered with the solid demoulding layer, and uniformly brushing flexible pipe material polymer liquid on the surface of the solid demoulding layer;
and after the flexible pipe material polymer liquid is cured, reversing the die, vertically placing, and repeatedly brushing and curing until the thickness of the flexible pipe material polymer cured on the pipe fitting die reaches a target thickness, so that an ultrathin flexible pipe with the target thickness is formed on the surface of the solid demolding layer.
6. The method of claim 1, wherein after obtaining the ultra-thin flexible pipe, the method further comprises:
and flushing the inner wall of the ultrathin flexible pipe by water with a preset temperature, and removing the residual solid demolding layer formed by cooling from the inner wall of the ultrathin flexible pipe.
7. The method of any one of claims 1 to 6, wherein the ultra-thin flexible tube is used in an in vitro cardiovascular experiment.
8. An apparatus for producing ultra-thin flexible tubing, comprising:
a pipe fitting die;
the heating module is connected with the pipe fitting die and is used for heating the pipe fitting die;
wherein the preparation of an ultra-thin flexible tube is achieved by applying the method of any one of claims 1 to 7 on said device.
9. The apparatus as recited in claim 8, further comprising:
and the bracket is used for vertically placing the pipe fitting die.
10. The apparatus of claim 8 or 9, wherein the tube die is a hollow structure; wherein the heating module comprises:
the heating unit is arranged in the hollow structure of the pipe fitting die, and the heating unit heats the pipe fitting die through power supply of the power supply unit.
11. The apparatus of claim 8 or 9, wherein the tube die is a hollow structure; wherein the heating module comprises:
the water bath kettle is used for heating water in the water bath kettle under the condition of heating;
the power equipment is used for conveying water in the water bath kettle into the hollow structure of the pipe fitting die; the water inlet of the power equipment is connected with the water bath kettle through a water pipe, the water outlet of the power equipment is connected with one end of the pipe fitting die through the water pipe, and the other end of the pipe fitting die is arranged on the water bath kettle.
12. The apparatus of claim 11, wherein the power device is a peristaltic pump.
13. The apparatus of claim 8, wherein the number of tube dies is a plurality, and wherein each tube die is of a different size.
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| CN202211737699.0A CN116061475A (en) | 2022-12-30 | 2022-12-30 | Preparation method of ultrathin flexible pipe and device for preparing ultrathin flexible pipe |
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| CN202211737699.0A CN116061475A (en) | 2022-12-30 | 2022-12-30 | Preparation method of ultrathin flexible pipe and device for preparing ultrathin flexible pipe |
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| JPH02274784A (en) * | 1989-04-17 | 1990-11-08 | Modern Plast Kogyo Kk | Agent for peeling self-adhesive film used for marking |
| US20140326357A1 (en) * | 2011-12-20 | 2014-11-06 | Wellstream International Limited | Methods of producing flexible pipe bodies, and flexible pipe bodies |
| CN108814767A (en) * | 2018-06-28 | 2018-11-16 | 中国科学院长春应用化学研究所 | A kind of preparation facilities and preparation method of small-caliber artificial blood vessel microcellular structure |
| CN211362778U (en) * | 2019-07-18 | 2020-08-28 | 河南省公路工程局集团有限公司 | High-efficient shedder of cement concrete box girder steel centre form of electric heat melting wax method |
| CN114848922A (en) * | 2022-04-19 | 2022-08-05 | 浙江大学 | Composite conduit material doped with mechanoluminescence material and preparation method thereof |
| CN219686330U (en) * | 2022-12-30 | 2023-09-15 | 浙江清华柔性电子技术研究院 | Device for preparing ultrathin flexible pipe |
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2022
- 2022-12-30 CN CN202211737699.0A patent/CN116061475A/en active Pending
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| JPH02274784A (en) * | 1989-04-17 | 1990-11-08 | Modern Plast Kogyo Kk | Agent for peeling self-adhesive film used for marking |
| US20140326357A1 (en) * | 2011-12-20 | 2014-11-06 | Wellstream International Limited | Methods of producing flexible pipe bodies, and flexible pipe bodies |
| CN108814767A (en) * | 2018-06-28 | 2018-11-16 | 中国科学院长春应用化学研究所 | A kind of preparation facilities and preparation method of small-caliber artificial blood vessel microcellular structure |
| CN211362778U (en) * | 2019-07-18 | 2020-08-28 | 河南省公路工程局集团有限公司 | High-efficient shedder of cement concrete box girder steel centre form of electric heat melting wax method |
| CN114848922A (en) * | 2022-04-19 | 2022-08-05 | 浙江大学 | Composite conduit material doped with mechanoluminescence material and preparation method thereof |
| CN219686330U (en) * | 2022-12-30 | 2023-09-15 | 浙江清华柔性电子技术研究院 | Device for preparing ultrathin flexible pipe |
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