CN117145966B - Internal conductive sealing insulating adhesive tape on endoscope decontamination machine and preparation method thereof - Google Patents
Internal conductive sealing insulating adhesive tape on endoscope decontamination machine and preparation method thereof Download PDFInfo
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- CN117145966B CN117145966B CN202311421067.8A CN202311421067A CN117145966B CN 117145966 B CN117145966 B CN 117145966B CN 202311421067 A CN202311421067 A CN 202311421067A CN 117145966 B CN117145966 B CN 117145966B
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- Prior art keywords
- silica gel
- conductive
- gel strip
- strip
- inner conductive
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- 238000007789 sealing Methods 0.000 title claims abstract description 43
- 239000002390 adhesive tape Substances 0.000 title claims abstract description 24
- 238000005202 decontamination Methods 0.000 title claims abstract description 20
- 230000003588 decontaminative effect Effects 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 182
- 239000000741 silica gel Substances 0.000 claims abstract description 179
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 179
- 238000001125 extrusion Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 230000001954 sterilising effect Effects 0.000 claims 1
- 229920001971 elastomer Polymers 0.000 abstract description 7
- 239000012945 sealing adhesive Substances 0.000 abstract description 4
- 230000008569 process Effects 0.000 description 9
- 229920002379 silicone rubber Polymers 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 239000002245 particle Substances 0.000 description 8
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 7
- 229910052709 silver Inorganic materials 0.000 description 7
- 239000004332 silver Substances 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000010068 moulding (rubber) Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
- H01B17/64—Insulating bodies with conductive admixtures, inserts or layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/021—Sealings between relatively-stationary surfaces with elastic packing
- F16J15/022—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material
- F16J15/024—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material the packing being locally weakened in order to increase elasticity
- F16J15/027—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or material the packing being locally weakened in order to increase elasticity and with a hollow profile
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/064—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces the packing combining the sealing function with other functions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Endoscopes (AREA)
Abstract
The invention relates to an internal conductive sealing insulating adhesive tape on an endoscope decontamination machine and a preparation method thereof, belonging to the technical field of conductive shielding sealing adhesive tapes; the shielding sealing rubber strip comprises a silica gel strip outer side insulating part and a silica gel strip inner side conducting part, wherein the silica gel strip outer side insulating part is of a hollow structure, the silica gel strip inner side conducting part is positioned in the silica gel strip outer side insulating part, the silica gel strip inner side conducting part penetrates through the thin conducting wire and then is connected with an external wire, the silica gel strip outer side insulating part is made of insulating silica gel, and the silica gel strip inner side conducting part is made of conducting silica gel; the outer insulating part and the inner conductive part of the silica gel strip are respectively extruded and molded integrally by adopting a mold of the outer insulating part and a mold of the inner conductive part of the silica gel strip; the mechanical property of the internal conductive sealing insulating adhesive tape on the endoscope decontamination machine can be guaranteed, and the conductivity of the internal conductive sealing insulating adhesive tape on the endoscope decontamination machine can be guaranteed.
Description
Technical Field
The invention relates to an internal conductive sealing insulating adhesive tape on an endoscope decontamination machine and a preparation method thereof, belonging to the technical field of conductive shielding sealing adhesive tapes.
Background
In the use process of the silica gel strip, most of the silica gel strip is used for achieving a sealing effect, and the sealing effect can be achieved only by extruding the silica gel strip by two parts and forming certain extrusion deformation. However, the strength is not easy to grasp in the extrusion process, especially in an automatic sealing mechanism, the automatic sealing process is influenced by an electric device control program or a certain electric device component, if the sealing rubber strip is arranged on glass, when the extrusion force is overlarge, the silica gel strip reaches the maximum value of deformation, and the glass is easy to crush or damage other automatic control elements, especially the conductive layer.
For example, chinese patent publication No. CN1455636a discloses a conductive seal, which is formed on a first sealing surface by extruding an elastically hardened material mixed with conductive particles, and is further mixed with magnetic particles, and a method and an apparatus for producing the same. After the above-mentioned material has been applied to the first sealing surface, the cross-sectional profile of the material is elongated to an adjustable height towards the second sealing surface and/or a sealing rim is formed by the magnetic force of the electromagnetic plate. In particular, the magnetic and conductive particles are preferably concentrated in the edge portions due to the magnetic forces acting on the sealing tape during extrusion.
For another example, chinese patent publication No. CN115871426A discloses a conductive shielding sealing rubber strip for ships, which comprises a silicon rubber strip, a pure silver conductive layer positioned on the surface of the silicon rubber strip and a plurality of forming holes formed on the silicon rubber strip, wherein the silicon rubber strip has high elasticity and low compression forming and can be permanently deformed, and the density of the silicon rubber strip is 1.2+/-0.25 g/cm 3 The size of the silicon rubber strip is 41x20mm, and the continuous molding length can reach more than 50 m. The ship conductive shielding sealing adhesive tape and the preparation method thereof have corrosion resistance and mildew resistance under the condition of meeting the ship conductive shielding sealing requirement, and are suitable for the marine atmosphere environment with high salinity; the silicon rubber and the pure silver conductive layer are combined without oil seepage and solution precipitation, safety and innocuity meet ROHS regulation, the service temperature range is-5-160 ℃, the conductive shielding sealing rubber strip can be durable for a long time, the conductive shielding sealing rubber strip consists of a conductive pure silver rubber part and non-conductive silicon rubber, the two parts are tightly combined to form a whole through a continuous molding process, and the material cost can be greatly reduced through the double-color composite conductive rubber molding process.
However, the conductive adhesive tape needs a conductive layer to be sprayed with a pure silver layer, so that on one hand, the material is high in price, the spraying thickness process is high in requirement, and on the other hand, the spraying process causes environmental pollution. In addition, the method is realized by simply depending on the co-extrusion compounding of conductive particles such as silver-coated copper powder, nickel-coated graphite powder and the like and silica gel, the proportion of the conductive particles can influence the conductivity and the mechanical property of the silica gel, the proportion of the conductive particles is too high, the mechanical property of the silica gel strip is influenced, the proportion of the conductive particles is too low, and the conductivity of the silica gel strip is influenced. The existing conductive adhesive tape achieves a conductive effect by means of spraying a pure silver layer on the surface, and if a coating falls off, the conductive performance can be seriously affected.
Disclosure of Invention
The invention aims to solve the technical problems that: overcomes the defects of the prior art, and provides an internal conductive sealing insulating adhesive tape on an endoscope decontamination machine and a preparation method thereof, which have simple process and low cost; the mechanical property of the silica gel strip can be ensured, and the conductivity of the silica gel strip can be ensured.
The invention discloses an internal conductive sealing insulating adhesive tape on an endoscope decontamination machine, which comprises an outer insulating part of a silica gel strip and an inner conductive part of the silica gel strip, wherein the inner part of the outer insulating part of the silica gel strip is of a hollow structure, the inner conductive part of the silica gel strip is positioned in the outer insulating part of the silica gel strip, the inner conductive part of the silica gel strip penetrates through a fine conductive wire and then is connected with an external wire, the outer insulating part of the silica gel strip is made of insulating silica gel, and the inner conductive part of the silica gel strip is made of conductive silica gel.
The insulating silica gel is used outside, and the conductive silica gel is used inside, so that the mechanical property and the conductive property of the silica gel strip can be ensured; the inner conductive part of the silica gel strip penetrates through the thin conductive wire and then is connected with an external wire, so that the conductive performance of the silica gel strip is further ensured not to be influenced by the working condition environment and the length of the silica gel strip.
Preferably, the inner conductive part of the silica gel strip is divided into two pieces which are not contacted with each other, an upper piece of the inner conductive part of the silica gel strip and a lower piece of the inner conductive part of the silica gel strip, and thin conductive wires are penetrated inside the upper piece of the inner conductive part of the silica gel strip and connected with external wires.
The upper piece of the inner side conductive part of the silica gel strip and the lower piece of the inner side conductive part of the silica gel strip are not contacted with each other under the condition that the silica gel strip is not pressed by external force, and can be contacted with each other under the condition that the silica gel strip is pressed by external force.
Preferably, two thin conductive wires are arranged and respectively penetrate through an upper sheet of the inner conductive part of the silica gel strip and a lower sheet of the inner conductive part of the silica gel strip, the length of each thin conductive wire is consistent with that of the silica gel strip, one end of each thin conductive wire is a blind end, and the other end of each thin conductive wire is connected with an external wire through an external wire conductive sheet.
Preferably, the external conducting wire conducting strip is provided with two pieces which are respectively welded with the end parts of the two thin conducting wires, and the two external conducting wire conducting strips are respectively welded with the two external conducting wires.
Preferably, the resistivity of the thin conductive wires and the external conductive wire conductive sheet is 0.016-0.0177 Ω.m.
Preferably, the thin conductive wires and the external conductive wires are made of copper.
Preferably, the hollow structure in the outer insulating part of the silica gel strip comprises a first cavity, a second cavity and a third half cavity, wherein the first cavity is arranged on the upper part, and the second cavity and the third half cavity are arranged on the lower part; the first cavity is right-angle-shaped, an inner arc edge is arranged on the inner side of the right-angle-shaped, an upper piece of the inner conductive part of the silica gel strip is positioned on the inner arc edge, and a lower piece of the inner conductive part of the silica gel strip and an upper piece of the inner conductive part of the silica gel strip are oppositely arranged.
Preferably, the second cavity is in a right trapezoid shape, and the third half cavity is in a wedge shape.
According to the preparation method of the internal conductive sealing insulating adhesive tape on the endoscope decontaminating machine, the outer insulating part of the silica gel strip and the inner conductive part of the silica gel strip are respectively formed by integrally extruding the outer insulating part mould of the silica gel strip and the inner conductive part mould of the silica gel strip, insulating silica gel is added to the outer insulating part mould of the silica gel strip, conductive silica gel is added to the inner conductive part mould of the silica gel strip, small holes for the thin conductive wires to pass through are formed in the inner conductive part mould of the silica gel strip, and the traction speed of the thin conductive wires is synchronous with the extrusion speed of the inner conductive part of the silica gel strip.
Compared with the prior art, the invention has the following beneficial effects:
according to the internal conductive sealing insulating adhesive tape on the endoscope decontamination machine and the preparation method, insulating silica gel is used outside, and conductive silica gel is used inside, so that the mechanical property of the internal conductive sealing insulating adhesive tape on the endoscope decontamination machine can be ensured, and the conductivity of the internal conductive sealing insulating adhesive tape on the endoscope decontamination machine can be ensured; the inner conductive part of the silica gel strip penetrates through the thin conductive wire and is connected with an external wire, so that the conductivity is stable, and the conductivity cannot be influenced by ageing of the adhesive strip or the length of the adhesive strip; the traction speed of the thin conductive wire is synchronous with the extrusion speed of the inner conductive part of the silica gel strip, and the process is simple and the cost is low.
Drawings
FIG. 1 is a schematic cross-sectional view of an inner conductive sealing insulating strip on an endoscope decontamination machine according to the present invention;
fig. 2 is a schematic diagram of an end face structure of an internal conductive sealing insulating adhesive tape on an endoscope decontamination machine according to the present invention.
Wherein: 1. an insulating part at the outer side of the silica gel strip; 11. a first cavity; 111. an inner arc edge; 12. a second cavity; 13. a third half cavity; 2. a conductive part on the inner side of the silica gel strip; 21. the conductive part on the inner side of the silica gel strip is coated; 22. the conductive part at the inner side of the silica gel strip is sliced; 3. a fine conductive wire; 4. an external lead conductive sheet; 5. an external wire.
Detailed Description
The invention aims to provide a silica gel strip with simple production process and low cost and used under special requirements and a design production method thereof. The basic scheme is as follows: the silica gel strip is hollow design, and ordinary insulating silica gel material is used in the silica gel strip outside, and the inboard is the conductive silica gel of two parts each other non-contact, and thin copper wire is run through respectively to the conductive silica gel medial part of two parts each other non-contact, and thin copper wire is at the terminal spot welding outside wire copper sheet of silica gel strip, and outside wire copper sheet spot welding are connected. For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
Example 1
As shown in fig. 1-2, this embodiment discloses an inside conductive sealing insulation adhesive tape on endoscope decontamination machine, including silica gel outside insulation part 1 and silica gel inboard conductive part 2, the inside hollow structure that is of silica gel outside insulation part 1, silica gel inboard conductive part 2 are located silica gel outside insulation part 1 inside, connect outside wire 5 after silica gel inboard conductive part 2 runs through thin conductive wire 3, and silica gel outside insulation part 1 material is insulating silica gel, and silica gel inboard conductive part 2 material is conductive silica gel.
The insulating silica gel is used outside, and the conductive silica gel is used inside, so that the mechanical property and the conductive property of the silica gel strip can be ensured; the inner conductive part 2 of the silica gel strip penetrates through the thin conductive wire 3 and then is connected with an external wire 5, so that the conductive performance of the silica gel strip is further ensured not to be influenced by the working condition environment and the length of the adhesive tape.
The conductive silica gel is prepared by uniformly distributing conductive particles such as silver-coated copper powder, nickel-coated graphite powder and the like in the silica gel, and the conductive particles are mutually contacted and communicated to achieve good conductive performance. There are applications both military and commercial. Its main functions are sealing and electromagnetic shielding. The product may be molded or extruded with sheets or other die cut shapes being alternative. The shielding performance is as high as 120dB (10 GHz). The conductive silica gel has good electromagnetic sealing and water vapor sealing capabilities, and can provide good conductivity under certain pressure (the inhibition frequency reaches 40 GHz).
The silica gel strip is generally used for building doors and windows, automobiles, special equipment and other components: the combination parts of glass and pressing strips, glass and frame fans, frame and fans, fans and the like can prevent leakage or invasion of inner and outer media (rainwater, air, sand dust and the like), and can prevent or reduce damage caused by mechanical vibration and impact, thereby achieving the functions of sealing, sound insulation, heat insulation, shock absorption and the like.
In order to ensure the performance of the hollow structure, the inner conductive part 2 of the silica gel strip is divided into two pieces which are not contacted with each other, an upper piece 21 of the inner conductive part of the silica gel strip and a lower piece 22 of the inner conductive part of the silica gel strip, wherein the inner conductive part of the silica gel strip 21 is internally penetrated with a thin conductive wire 3, and the thin conductive wire 3 is connected with an external lead 5.
The upper sheet 21 of the inner conductive part of the silica gel strip and the lower sheet 22 of the inner conductive part of the silica gel strip are not contacted with each other under the condition that the silica gel strip is not pressed by external force, and can be contacted with each other under the condition that the silica gel strip is pressed by external force.
In order to further ensure that the conductivity of the silica gel strip is not influenced by the working condition environment and the length of the silica gel strip, two fine conductive wires 3 are arranged and respectively penetrate through an upper conductive part sheet 21 on the inner side of the silica gel strip and a lower conductive part sheet 22 on the inner side of the silica gel strip, the length of each fine conductive wire 3 is consistent with that of the silica gel strip, one end of each fine conductive wire 3 is a blind end, and the other end of each fine conductive wire is connected with an external wire 5 through an external wire conductive sheet 4.
In order to realize that the thin conductive wires 3 are connected with the external conductive wires 5 through the external conductive wire conductive sheets 4, the external conductive wire conductive sheets 4 are provided with two pieces which are respectively welded with the end parts of the two thin conductive wires 3, and the two external conductive wire conductive sheets 4 are respectively welded with the two external conductive wires 5.
In order to achieve the conductive properties of the fine conductive filaments 3, the resistivity of the fine conductive filaments 3 and the external wire conductive sheet 4 is 0.01670.0177 Ω·m. Specifically, the fine conductive wires 3 and the external conductive wires 4 are made of copper.
In order to realize the hollow structure inside the silica gel strip outside insulation part 1, the hollow structure inside the silica gel strip outside insulation part 1 comprises a first cavity 11, a second cavity 12 and a third half cavity 13, wherein the first cavity 11 is arranged on the upper part, and the second cavity 12 and the third half cavity 13 are arranged on the lower part; the first cavity 11 has a right angle shape with an inner arc edge 111, the upper piece 21 of the inner conductive part of the silica gel strip is located on the inner arc edge 111, and the lower piece 22 of the inner conductive part of the silica gel strip is opposite to the upper piece 21 of the inner conductive part of the silica gel strip. Specifically, the second cavity 12 is in a right trapezoid shape, and the third cavity half 13 is in a wedge shape.
In conclusion, insulating silica gel is used outside, conductive silica gel is used inside, so that the mechanical property of the silica gel strip can be guaranteed, and the conductivity can be guaranteed. The inner conductive part penetrates through the thin conductive wire 3, so that the influence of the conductive performance of the silicon rubber strip on the working condition environment and the length of the rubber strip is further ensured.
Example 2
The embodiment discloses a preparation method of an internal conductive sealing insulating adhesive tape on an endoscope decontamination machine according to embodiment 1, wherein a silica gel strip outer insulating part 1 and a silica gel strip inner conductive part 2 are respectively formed by integrally extruding a silica gel strip outer insulating part die and a silica gel strip inner conductive part die, insulating silica gel is added to the silica gel strip outer insulating part die, conductive silica gel is added to the silica gel strip inner conductive part die, the silica gel strip inner conductive part die is provided with a small hole for a thin conductive wire 3 to pass through, and the traction speed of the thin conductive wire 3 is synchronous with the extrusion speed of the silica gel strip inner conductive part 2.
In order to realize the synchronization of the traction speed of the thin conductive wire 3 and the extrusion speed of the inner conductive part 2 of the silica gel strip, after the outer insulating part 1 of the silica gel strip, the inner conductive part 2 of the silica gel strip and the thin conductive wire 3 start to extrude, the thin conductive wire 3 is manually pulled to be fixed on a conveyor belt through high-temperature shaping equipment, the inner conductive part 2 of the silica gel strip reinforces extrusion to the thin conductive wire 3 under the action of the high-temperature shaping equipment, the thin conductive wire 3 is firmly attached inside the inner conductive part 2 of the silica gel strip, and the outer insulating part 1 of the silica gel strip and the inner conductive part 2 of the silica gel strip are firmly bonded together under the action of the high-temperature shaping equipment. Therefore, the traction speed of the thin conductive wire 3 and the extrusion speed of the inner conductive part 2 of the silica gel strip and the outer insulating part 1 of the silica gel strip are synchronous by stably dragging the thin conductive wire 3 through the conveyor belt.
In order to ensure that the cross-sectional shapes of the insulating part 1 on the outer side of the silica gel strip and the conductive part 2 on the inner side of the silica gel strip are stable, two sets of turbine glue feeding systems are arranged at a glue feeding end, one set of turbine glue feeding systems is responsible for forward extrusion of insulating silica gel, the other set of turbine glue feeding systems is responsible for forward extrusion of conductive silica gel, and the turbine rotating speed of the extruded insulating silica gel and the turbine rotating speed ratio of the extruded conductive silica gel are consistent with the use proportion of the two silica gels in the finished product of the sealing adhesive tape.
In conclusion, the thin conductive wires 3 are added to facilitate traction of the silica gel strip outer side insulating part 1 and the silica gel strip inner side conductive part 2, so that the defect that the silica gel strip outer side insulating part 1 and the silica gel strip inner side conductive part 2 are easy to deform due to direct traction of the silica gel strip outer side insulating part 1 and the silica gel strip inner side conductive part 2 which are just formed is prevented.
Claims (7)
1. The inner conductive sealing insulating adhesive tape on the endoscope decontamination machine is characterized by comprising an outer insulating part (1) of a silica gel tape and an inner conductive part (2) of a silica gel strip, wherein the inner part of the outer insulating part (1) of the silica gel strip is of a hollow structure, the inner conductive part (2) of the silica gel strip is positioned in the outer insulating part (1) of the silica gel strip, the inner conductive part (2) of the silica gel strip penetrates through a thin conductive wire (3) and then is connected with an external lead (5), the outer insulating part (1) of the silica gel strip is made of insulating silica gel, and the inner conductive part (2) of the silica gel strip is made of conductive silica gel;
the inner conductive part (2) of the silica gel strip comprises two pieces which are not contacted with each other, an upper piece (21) of the inner conductive part of the silica gel strip and a lower piece (22) of the inner conductive part of the silica gel strip, wherein the inner part of the upper piece (21) of the inner conductive part of the silica gel strip is penetrated through a thin conductive wire (3), and the thin conductive wire (3) is connected with an external lead (5);
the inner hollow structure of the insulating part (1) at the outer side of the silica gel strip comprises a first cavity (11), a second cavity (12) and a third half cavity (13), wherein the first cavity (11) is arranged at the upper part, and the second cavity (12) and the third half cavity (13) are arranged at the lower part; the first cavity (11) is in a right-angle shape, an inner arc edge (111) is arranged on the inner side of the right-angle shape, an upper sheet (21) of the inner conductive part of the silica gel strip is positioned on the inner arc edge (111), and a lower sheet (22) of the inner conductive part of the silica gel strip and the upper sheet (21) of the inner conductive part of the silica gel strip are oppositely arranged.
2. The inner conductive sealing insulating adhesive tape on the endoscope decontamination machine according to claim 1, wherein two thin conductive wires (3) are arranged and respectively penetrate through an upper sheet (21) of an inner conductive part of a silica gel strip and a lower sheet (22) of an inner conductive part of the silica gel strip, the length of each thin conductive wire (3) is consistent with that of the inner conductive sealing insulating adhesive tape on the endoscope decontamination machine, one end of each thin conductive wire (3) is a blind end, and the other end of each thin conductive wire is connected with an external wire (5) through an external wire conductive sheet (4).
3. The inner conductive sealing insulating adhesive tape on the endoscope decontamination machine according to claim 2, wherein the outer lead conductive sheet (4) is provided with two sheets which are respectively welded with the end parts of the two thin conductive wires (3), and the two outer lead conductive sheets (4) are respectively welded with the two outer leads (5).
4. An inner conductive sealing strip on an endoscope apparatus according to claim 3, characterized in that the electrical resistivity of the fine conductive wire (3) and the outer conductive wire sheet (4) is 0.01670.0177 Ω.m.
5. The inner conductive sealing insulation adhesive tape on the endoscope sterilizing machine according to claim 4, wherein the thin conductive wire (3) and the outer conductive wire conductive sheet (4) are made of copper.
6. An inner conductive sealing strip on an endoscope apparatus according to claim 1, characterized in that the second cavity (12) is right trapezoid and the third half cavity (13) is wedge-shaped.
7. A method for preparing an internal conductive sealing insulating adhesive tape on an endoscope decontamination machine according to any one of claims 1-6, wherein a silica gel strip outer insulating part (1) and a silica gel strip inner conductive part (2) are respectively formed by integrally extruding a silica gel strip outer insulating part die and a silica gel strip inner conductive part die, insulating silica gel is added to the silica gel strip outer insulating part die, conductive silica gel is added to the silica gel strip inner conductive part die, the silica gel strip inner conductive part die is provided with a small hole for a thin conductive wire (3) to pass through, and the traction speed of the thin conductive wire (3) is synchronous with the extrusion speed of the silica gel strip inner conductive part (2).
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| CN117145966A (en) | 2023-12-01 |
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