WO2018040548A1 - Silicone rubber cable for rail transit and intelligent preparation method therefor - Google Patents

Abstract

Provided are a silicone rubber cable for rail transit and an intelligent preparation method for the silicone rubber. The silicone rubber cable for rail transit comprises a conductor and an insulation layer. The outer side of the conductor is covered by the insulation layer. The surface of the insulation layer is provided with n ribs with the same structure, an angle between adjacent ribs is 40-60 °, and the height of the ribs is 0.1-0.5 mm. The silicone rubber, when used for insulation and sheathing materials of high temperature cables for rail transit vehicles, can produce good performance which meets norms required by power cables for drawing a motor in a bogie and by jumper cables cables in the railroad car connecting part, thereby enhancing the performance of the traditional silicone rubber cable materials, providing high strength, high temperature resistance, cold resistance, anti-aging, waterproof, damp-proof, long service life and other excellent performance. In the conditions with flame, the silicone rubber can ensure that the cable remains normal power supply in a longer period, reaching a flame retardant effect. The new silicone rubber cable material is prepared using intelligent batching operation, which saves labor costs, and achieves accurate batching and uniformity of each batch.

Description

[Name of invention made by ISA according to Rule 37.2] Silicone rubber cable for rail transit and intelligent preparation method thereof Technical field

The invention relates to the technical field of cables, in particular to a silicon rubber cable for rail transit and an intelligent preparation method thereof.

Background technique

The existing silicone rubber high temperature cable for rail vehicles meets the European standard EN 50382-2:2008 "railway equipment - high temperature power cables for rolling stock with special fire performance, Part 2: 120 ° C or 150 ° C single core silicone rubber insulated cable 》. The cable core structure of the cable is made of the tinned or non-tinned stranded soft conductor of Class 5 or Class 6 of GB/T 3956-2008 "Conductor of Cable" and extruded with a temperature rating of 150 °C. Silicone rubber insulation material composition. The tensile strength of the silicone rubber insulating material is not less than 8.0 MPa, and the elongation at break is not less than 200%.

For a long time, when the cable is laid under complicated and harsh environmental conditions, especially the length of the whole vehicle, in order to avoid mechanical damage to the cable insulation during the construction process, it is usually necessary to squeeze a layer of silicone rubber sheathing material outside the core. Improve the mechanical performance margin of the cable by increasing the thickness of the non-metallic material. But at the same time, this increases the size and weight of the cable, which is contrary to the development idea that the cable product is small in size and light in weight. In order to facilitate the separation between the silicone rubber insulation and the silicone rubber sheath, it is common to increase the isolation layer structure between the two. However, in the wiring environment of complex rolling stock, multiple cables inevitably maintain a 90°C bending or even a smaller angle bending state. At this time, due to the existence of the cable isolation layer structure, the insulation and the sheath are relatively opposed. Sliding, and the two ends of the installation cable are fixed, the inner ring of the sheath is wrinkled, and the stress at the wrinkles is concentrated, which will cause the sheath to crack during the long-term operation of the vehicle and reduce the physical and mechanical properties of the cable.

The existing rail transit vehicle cable generally adopts a thermosetting low-smoke halogen-free flame-retardant low-toxic polyolefin material with a tensile strength of not less than 10 MPa. In order to satisfy the excellent flame retardant performance of the cable, the material generally adopts an aluminum-magnesium flame-retardant system, but The large amount of metal minerals is added to improve the moisture absorption performance of the cable. During the long-term electrification of the cable, there is a hidden danger of surface creepage after the cable is wet. At the same time, the cable is usually protected by a network tube cushion during the laying process. The mesh tube cushion is made of polyester material, and the nitrogen-phosphorus flame retardant system is generally used. The nitrogen-phosphorus flame retardant has the characteristics of water migration and migrates to the network tube cushion. After the surface, it will react with magnesium hydroxide in the aluminum-magnesium flame retardant system cable to form magnesium hydrogen phosphate, which will cause spots on the cable surface and affect the long-term flame retardant performance of the cable.

With the popularization and widespread application of the Internet + intelligent manufacturing concept, the collection, collation, analysis and breakthrough of nanotechnology. In order to develop a formula of silicone rubber material with tensile strength of not less than 10 MPa and a more suitable solution for mass production.

In order to improve the mechanical margin when laying single insulated silicon rubber cable, instead of the insulated sheath cable, the utility model has the advantages of small volume and light weight.

The single insulated cable has no sheath structure, so it is repeatedly bent without wrinkles. Avoid the hidden danger of cracking the jacket during long-term operation of the vehicle.

Instead of polyolefin cable products, avoid the hidden dangers of fire performance caused by cable and network tube matching problems.

Summary of the invention

The object of the present invention is to provide a performance that can meet the requirements of the jumper cable of the traction motor power cable and the car joint in the bogie, and improve the performance of the traditional silicone rubber cable material, so as to have high strength, high temperature resistance, cold resistance and resistance. Excellent performance such as aging, waterproof and moisture-proof, and long service life to solve the problems raised in the above background art.

In order to achieve the above object, the present invention provides the following technical solution: a silicone rubber cable for rail transit, comprising a conductor and an insulating layer, the insulating layer covering the outside of the conductor, and the surface of the insulating layer is provided with n ridges of the same structure, phase The angle between the adjacent ridges is 40-60°, and the height of the ribs is 0.1-0.5 mm.

An intelligent preparation method of silicone rubber for silicone rubber cable for rail transit, comprising the following steps:

(1) Automatically feed the five storage tanks of white carbon black, carbon black N550, talc powder, zinc oxide and stearic acid according to the conventional process; input the components of the formula and the car produced in the computer production system. The number of times is intelligently fed, and the material is fed to the mixed storage tank;

(2) Intelligent automatic weighing composite flame retardant, chopped glass fiber, high density polyethylene, accelerator M, anti-aging agent, zinc stearate are packaged separately and named as group A; cross-linking agent is packaged as B group;

(3) According to the formula ratio, the corresponding quality of silicone rubber and butadiene rubber are transported to the designated place by AGV smart car, and then the machine is fed with the mechanical kneading machine to open the nitrogen gas, and the steam is heated to 92-98 ° C for 5 min. The robot is used to automatically feed the A component to the kneading machine, and at the same time, the oil is weighed with the corresponding quality of epoxy soybean oil, paraffin oil and hydroxy silicone oil, and then heated to 135-145 ° C for kneading, 5-10 min; The robot automatically adds the cross-linking agent group B, maintains 135-145 ° C for kneading for 20-30 min, then cools to 70 ° C, and then automatically discharges to the mixer;

(4) The silicone rubber delivered by the kneading machine is kneaded by means of rubber turning, triangle packing, etc., and kneaded for 4 to 5 times, and then the rubber material is transported by a conveyor belt to a three-roll calendering and eight-roll cooling device. The tablet is cooled, and the final sheet thickness is 1 to 3 mm;

(5) At the position of the folded piece, it is automatically transported to the corresponding glue storage position by the AGV smart car. When the sulphur section is used, it is only necessary to input the type of the required rubber material through the industrial tablet computer, and the AGV smart car can automatically take out the rubber material in the rubber warehouse;

(6) Traceability of product information: In the EPR system, the information of the rubber material is generated into a barcode, and then printed by the printer, posted on the packaging box of each box of rubber to facilitate the production traceability; the mixed rubber workshop realizes full coverage of the wireless network, The barcode information of the rubber is scanned by the handheld terminal.

Preferably, the silicone rubber formulation comprises the following components: 100 parts by weight of base silicone rubber; 25-30 parts of butadiene rubber; 10-15 parts of white carbon black; 12-18 parts of carbon black N550; composite flame retardant 12 ～15 parts; 12 to 15 parts of talc; 3 to 5 parts of zinc oxide; 2 to 3 parts of chopped glass fiber; 8 to 10 parts of stearic acid; 4 to 8 parts of high density polyethylene; and promoter M 0.5 to 0.8 Parts; antioxidants 1 to 3 parts; crosslinker 0.1 to 0.3 parts; epoxy soybean oil 4 to 5 parts; paraffin oil 4 to 5 parts; hydroxy silicone oil 2 to 3 parts; zinc stearate 0.15 to 0.25 parts.

Preferably, the composite flame retardant is made of nano aluminum hydroxide, hexa(DOPO hydroxymethylbenzyloxy)cyclotriphosphazene, ammonium polyphosphate and polyester resin, and the mass percentage is 60-80: 8～15:～20:5:35～38 prepared a new composite flame retardant material.

Preferably, the crosslinking agent is 1,1-di(tert-butylperoxy)cyclohexane, bis(1-methyl-1phenylethyl) peroxide; 1,3 (t-butyl) At least one of oxyisopropyl)benzene.

Preferably, the chopped glass fibers have a length of from 0.1 to 0.2 mm, preferably a length of 0.15 mm.

Preferably, the antioxidant is selected from: N-phenyl-N'-cyclohexyl p-phenylenediamine, N-phenyl-N'-isopropyl-p-phenylenediamine, At least one of N-N'-diphenyl-p-phenylenediamine and 6-di-tert-butyl-p-cresol.

Compared with the prior art, the beneficial effects of the present invention are:

The invention provides an intelligent preparation method of silicone rubber for rail transit, and the silicon rubber is used for the insulation and sheathing material of the high temperature cable of the rail transit vehicle, and the performance thereof can satisfy the traction motor power cable and the car joint in the bogie. The jumper cable indicator requirements.

The invention improves the performance of the traditional silicone rubber cable material, and has the advantages of high strength, high temperature resistance, cold resistance, anti-aging, waterproof and moisture proof, long service life, etc., and can be used for car body wiring in the railway vehicle power system, especially adding a new type The composite flame retardant can ensure the normal power supply performance of the cable in a long time under the flame condition and achieve the flame retardant effect. The new silicone rubber cable material preparation adopts intelligent batching production, which not only saves labor cost, but also achieves accurate batching and meets batch uniformity.

DRAWINGS

Figure 1 is a schematic view of the structure of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Referring to FIG. 1 , the present invention provides a technical solution: a silicone rubber cable for rail transit, comprising a conductor 1 and an insulating layer 2 , the insulating layer 2 covering the outside of the conductor 1 , the surface of the insulating layer 2 is provided with the same structure The n ribs 3 have an angle of 40 to 60° between the adjacent ribs 3, and the height of the ribs 3 is 0.1 to 0.5 mm.

The invention mainly relates to an intelligent preparation method of silicone rubber for rail transit vehicles, and the formula silicone rubber cable material is used as a high strength and high flame retardant silicone rubber cable sheathing material for rail transit vehicles.

a. The formula is as follows: 100 parts by mass of base silicone rubber; 25-30 parts of butadiene rubber; 10-15 parts of white carbon black; 12-18 parts of carbon black N550; 12-15 parts of composite flame retardant; talc 12 to 15 parts of powder; 3 to 5 parts of zinc oxide; 2 to 3 parts of chopped glass fiber; 8 to 10 parts of stearic acid; 4 to 8 parts of high density polyethylene; 0.5 to 0.8 parts of accelerator M; ～3 parts; cross-linking agent 0.1-0.3 parts; epoxidized soybean oil 4-5 parts; paraffin oil 4-5 parts; hydroxy silicone oil 2-3 parts; zinc stearate 0.15-0.25 parts.

b. The composite flame retardant in formula a is a novel composite flame retardant material prepared by using nano aluminum hydroxide, hexa(DOPO hydroxymethylbenzyloxy)cyclotriphosphazene, ammonium polyphosphate and polyester resin as raw materials. The particle size of the nano-aluminum hydroxide is selected from 10 to 20 nm, and the particle size aluminum hydroxide can be sufficiently dispersed in the composite flame retardant; as shown in Table 1, the optimal three-group formula of the composite flame retardant in the formulation :

Table I

c. In this formula, after adding butadiene rubber to the base silicone rubber and bonding with the crosslinking agent, the cold resistance and waterproof moisture resistance of the silicone rubber cable material are obviously improved, wherein the crosslinking agent is 1,1-two. (tert-butylperoxy)cyclohexane, bis(1-methyl-1phenylethyl)peroxide; at least one of 1,3-di(tert-butylperoxyisopropyl)benzene ;

d. Among them, the short-cut glass fiber has obvious reinforcing effect on the silicone rubber cable material, and the length of the chopped glass fiber is required to be 0.1-0.2 mm. The chopped glass fiber in the range is favorable for uniform dispersion in the silicone rubber cable material, and preferably the length. Is 0.15mm;

e. Among them, the antioxidant can be selected: N-phenyl-N'-cyclohexyl p-phenylenediamine (anti-aging agent 4010), N-phenyl-N'-isopropyl-p-phenylenediamine (anti-aging agent 4010NA) , at least one of NN`-diphenyl-p-phenylenediamine (anti-aging agent H) and 6-di-tert-butyl-p-cresol (anti-aging agent 264);

The invention mainly relates to an intelligent preparation method of silicone rubber for rail transit vehicles, and the main preparation thereof mainly adopts intelligent control from the raw material weighing to the final collection rubber compound, and the specific process is as follows:

(1) Automatically feeding five storage tanks of white carbon black, carbon black N550, talc powder, zinc oxide and stearic acid using a robot arm; inputting the composition of the formula and the number of cars produced in the computer production system for intelligence Feeding, feeding to a mixed storage tank;

(2) Intelligent automatic weighing of composite flame retardant, chopped glass fiber, high density polyethylene, accelerator M, anti-aging agent, zinc stearate, respectively (as shown in Figure 1), and named as group A; The combination agent is packaged into group B;

(3) According to the formula ratio, the corresponding quality of silicone rubber and butadiene rubber are transported to the designated place by AGV smart car, and then the machine is fed with the mechanical kneading machine to open the nitrogen gas, and the steam is heated to 92-98 ° C for 5 min. The robot is used to automatically feed the A component to the kneading machine, and at the same time, the oil is weighed with the corresponding quality of epoxy soybean oil, paraffin oil and hydroxy silicone oil, and then heated to 135-145 ° C for kneading, 5-10 min; The robot automatically added the cross-linking agent group B, and after kneading at 135-145 ° C for 20-30 min, the temperature was lowered to 70 ° C, and then automatically discharged to the mixer.

(4) The silicone rubber delivered by the kneading machine is kneaded by means of rubber turning, triangle packing, etc., and kneaded for 4 to 5 times, and then the rubber material is transported by a conveyor belt to a three-roll calendering and eight-roll cooling device. The tablet is cooled, and the final sheet thickness is 1 to 3 mm.

(5) At the position of the folded piece, it is automatically transported to the corresponding glue storage position by the AGV smart car. When the sulphur section is used, it is only necessary to input the type of the required compound through the industrial tablet. The AGV smart car can automatically be glued. The material is led out in the material warehouse.

(6) Traceability of product information: In the EPR system, the information of the rubber material is generated into a barcode, and then printed by the printer, and posted on the packaging box of each box of rubber to facilitate the traceability of production. The mixed rubber workshop realizes full coverage of the wireless network. By scanning the barcode information of the rubber material through the handheld terminal, the parameters such as Mooney, scorch time and positive curing time of the rubber compound can be clearly known, and then the product quality is better controlled.

Example 1

Raw material preparation

Automatically weigh 12 parts of silica; 16 parts of carbon black, 13 parts of talc, 4 parts of zinc oxide, 9 parts of stearic acid, and intelligently put into a mixed storage tank;

Automatically weighed 13 parts of composite flame retardant, 2 parts of chopped glass fiber, 6 parts of high density polyethylene, 0.6 part of accelerator M, 2 parts of antioxidant, 0.15 parts of zinc stearate, and were packaged as group A. 0.2 parts of the crosslinking agent are packaged into group B;

Silicone rubber preparation

100 parts of silicone rubber and 25 parts of butadiene rubber were automatically weighed and fed with a mechanical arm to a vacuum kneader, nitrogen gas was opened, and the temperature was raised to 92 to 98 ° C for 5 minutes by steam heating; and a batch of material was automatically fed to the kneading machine using a robot. The automatic oil pump weighed 4 parts of epoxy soybean oil, 4 parts of paraffin oil and 2 parts of hydroxy silicone oil, and then heated to 135-145 °C for kneading. After 5-10 minutes, the robot automatically added the cross-linking agent group B to maintain 135-145. After kneading at °C for 20 to 30 minutes, the temperature is lowered to 70 ° C, and then automatically discharged to the mixer;

The silicone rubber delivered by the kneading machine is kneaded by means of rubber turning, triangle packing, etc., and kneaded for 4 to 5 times, and then the rubber material is transported by a conveyor belt to a three-roll calendering and eight-roll cooling device for tablet cooling. The final sheet thickness is 1 to 3 mm;

At the position of the folded piece, it is automatically transported to the corresponding glue storage position by the AGV smart car. When the sulphur section is used, it is only necessary to input the type of the required rubber material through the industrial tablet computer, and the AGV smart car can automatically take out the rubber material in the rubber warehouse;

Example 2

Raw material preparation

10 parts of white carbon black were automatically weighed; 12 parts of carbon black, 12 parts of talcum powder, 3 parts of zinc oxide, and 8 parts of stearic acid were intelligently put into a mixed storage tank;

Automatically weighed 12 parts of composite flame retardant, 2 parts of chopped glass fiber, 4 parts of high density polyethylene, 0.5 part of accelerator M, 1 part of antioxidant, 0.15 parts of zinc stearate, and were packaged as group A. 0.1 part of the crosslinking agent is packaged into group B;

Silicone rubber preparation

100 parts of silicone rubber and 25 parts of butadiene rubber were automatically weighed and fed with a mechanical arm to a vacuum kneader, nitrogen gas was opened, and the temperature was raised to 92 to 98 ° C for 5 minutes by steam heating; and a batch of material was automatically fed to the kneading machine using a robot. The automatic oil pump weighed 4 parts of epoxy soybean oil, 4 parts of paraffin oil and 2 parts of hydroxy silicone oil, and then heated to 135-145 °C for kneading. After 5-10 minutes, the robot automatically added the cross-linking agent group B to maintain 135-145. After kneading at °C for 20 to 30 minutes, the temperature is lowered to 70 ° C, and then automatically discharged to the mixer;

The silicone rubber delivered by the kneading machine is kneaded by means of rubber turning, triangle packing, etc., and kneaded for 4 to 5 times, and then the rubber material is transported by a conveyor belt to a three-roll calendering and eight-roll cooling device for tablet cooling. The final sheet thickness is 1 to 3 mm;

At the position of the folded piece, it is automatically transported to the corresponding glue storage position by the AGV smart car. When the sulphur section is used, it is only necessary to input the type of the required rubber material through the industrial tablet computer, and the AGV smart car can automatically take out the rubber material in the rubber warehouse;

Example 3

Raw material preparation

15 parts of white carbon black were automatically weighed; 18 parts of carbon black, 15 parts of talcum powder, 5 parts of zinc oxide, and 10 parts of stearic acid were intelligently put into a mixed storage tank;

Automatically weighed 15 parts of composite flame retardant, 3 parts of chopped glass fiber, 8 parts of high density polyethylene, 0.8 part of accelerator M, 3 parts of antioxidant, 0.25 parts of zinc stearate, and were packaged as group A. The cross-linking agent 0.3 parts is packaged into group B;

Silicone rubber preparation

100 parts of silicone rubber and 25 parts of butadiene rubber were automatically weighed and fed with a mechanical arm to a vacuum kneader, nitrogen gas was opened, and the temperature was raised to 92 to 98 ° C for 5 minutes by steam heating; and a batch of material was automatically fed to the kneading machine using a robot. The automatic feeding oil pump weighs 5 parts of epoxy soybean oil, 5 parts of paraffin oil and 2 parts of hydroxy silicone oil, and then heats up to 135-145 °C for kneading. After 5-10 minutes, the robot automatically adds the cross-linking agent group B to maintain 135-145. After kneading at °C for 20 to 30 minutes, the temperature is lowered to 70 ° C, and then automatically discharged to the mixer;

The silicone rubber delivered by the kneading machine is kneaded by means of rubber turning, triangle packing, etc., and kneaded for 4 to 5 times, and then the rubber material is transported by a conveyor belt to a three-roll calendering and eight-roll cooling device for tablet cooling. The final sheet thickness is 1 to 3 mm;

At the position of the folded piece, it is automatically transported to the corresponding glue storage position by the AGV smart car. When the sulphur section is used, it is only necessary to input the type of the required compound through the industrial tablet. The AGV smart car can automatically take out the glue in the rubber warehouse.

The cable test results obtained by the embodiment of the present invention are shown in Table 2:

Serial number	Test project name	Example 1	Example 2	Example 3
1	Tensile strength Mpa	13.5	12.6	13.8
2	Elongation at break %	325	360	308
3	Tensile strength Mpa after aging at 200±3°C240h	12.6	11.8	12.8
4	Elongation at break after aging at 200±3°C for 240h	308	343	298
5	20 ° C volume resistivity Ω.M	1.45×10 14	1.43×10 14	1.47×10 14
6	95±2°C24h water absorption mg/cm 3	1.2	1.4	1.5
7	Low temperature embrittlement temperature °C	-42	-39	-43

Table II

The invention improves the performance of the traditional silicone rubber cable material, and has the advantages of high strength, high temperature resistance, cold resistance, anti-aging, waterproof and moisture proof, long service life, etc., and can be used for the vehicle body wiring in the railway vehicle power system, especially added A new type of composite flame retardant made of magnesium hydroxide, which can quickly extinguish the cable in flame condition, does not prolong flame, and achieve high flame retardant effect. The new silicone rubber cable material preparation adopts intelligent batching production, which not only saves labor cost, but also achieves accurate batching and meets batch uniformity.

By replacing the polyolefin cable products with silicone rubber insulated cable products, the risk of fire performance degradation caused by the problem of cable and network management matching is avoided.

Through the formulation research of the new high-strength silicone rubber insulation material, the mechanical margin of the single-insulating silicone rubber cable laying is improved, and the insulating sheath structure cable is replaced, so that the scientific development of small volume and light weight is realized.

The single insulated cable has no sheath structure, so it is repeatedly bent without wrinkles. Avoid the hidden danger of cracking the jacket during long-term operation of the vehicle.

This product will fully cooperate with your country to complete the mission of “total quality upgrade and build Chinese equipment ‘gold business card”.

While the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art The scope of the invention is defined by the appended claims and their equivalents.

Claims (7)

1. A silicone rubber cable for rail transit, comprising: a conductor and an insulating layer, wherein the insulating layer covers an outer side of the conductor, and the surface of the insulating layer is provided with n ridges of the same structure, and the adjacent ribs The angle between the two is 40 to 60°, and the height of the ridge is 0.1 to 0.5 mm.
2. A method for intelligently preparing a silicone rubber for a silicone rubber cable for rail transit according to claim 1, comprising the steps of:

   According to the conventional process, the mechanical arm is used to automatically feed the five storage tanks of white carbon black, carbon black N550, talc powder, zinc oxide and stearic acid; the components of the formula and the number of cars produced in the computer production system are intelligent. Feeding, feeding to a mixed storage tank;

   The intelligent automatic weighing composite flame retardant, chopped glass fiber, high density polyethylene, accelerator M, anti-aging agent and zinc stearate are respectively packaged and named as group A; the crosslinking agent is packaged into group B;

   According to the formula ratio, the corresponding quality of silicone rubber and butadiene rubber are transported to the designated place by AGV smart car, and then the machine is used to feed the vacuum kneader with nitrogen gas. After heating, the temperature is raised to 92-98 °C for 5 minutes. The A group material is fed to the kneading machine, and at the same time, the oil is weighed by the automatic feeding oil pump to weigh the corresponding quality epoxy soybean oil, paraffin oil and hydroxy silicone oil, and then heated to 135-145 ° C for kneading, 5-10 min; and automatically added by a robot The cross-linking agent group B is kept at 135-145 ° C for 20-30 min, and then cooled to 70 ° C, and then automatically discharged to the mixer;

   The silicone rubber delivered by the kneading machine is kneaded by means of rubber turning, triangle packing, etc., and kneaded for 4 to 5 times, and then the rubber material is transported by a conveyor belt to a three-roll calendering and eight-roll cooling device for tablet cooling. The final sheet thickness is 1 to 3 mm;

   In the position of the stacking piece, it is automatically transported to the corresponding glue storage position by the AGV smart car;

   When the sulphur section is used, it is only necessary to input the type of the required rubber material through the industrial tablet computer, and the AGV smart car can automatically take out the rubber material in the rubber warehouse;

   Traceability of product information: In the EPR system, the information of the rubber material is generated into a barcode, and then printed by the printer, posted on the packaging box of each box of rubber to facilitate the production traceability; the mixed rubber workshop realizes the full coverage of the wireless network, through the handheld terminal Scan the barcode information of the compound.
3. The silicone rubber intelligent preparation method for a silicone rubber cable for rail transit according to claim 2, wherein the silicone rubber formulation comprises the following components: base silicone rubber mass parts 100 parts; butadiene rubber 25 ~ 30 parts; 10 to 15 parts of white carbon black; 12 to 18 parts of carbon black N550; 12 to 15 parts of composite flame retardant; 12 to 15 parts of talc; 3 to 5 parts of zinc oxide; 3 parts; 8 to 10 parts of stearic acid; 4 to 8 parts of high density polyethylene; 0.5 to 0.8 parts of accelerator M; 1 to 3 parts of antioxidant; 0.1 to 0.3 parts of crosslinking agent; 4 to 5 parts of epoxy soybean oil Parts; 4 to 5 parts of paraffin oil; 2 to 3 parts of hydroxy silicone oil; 0.15 to 0.25 parts of zinc stearate.
4. The method for intelligently preparing silicone rubber for a silicone rubber cable for rail transit according to claim 3, wherein the composite flame retardant is nanometer aluminum hydroxide and six (DOPO hydroxymethylbenzyl group) The oxy)cyclotriphosphazene, ammonium polyphosphate and polyester resin are used as raw materials, and a novel composite flame retardant material is prepared by mass percentage of 60-80:8-15:20:5:35-38.
5. The method for intelligently preparing a silicone rubber for a silicone rubber cable for rail transit according to claim 3, wherein the crosslinking agent is 1,1-di(tert-butylperoxy)cyclohexane. At least one of bis(1-methyl-1phenylethyl) peroxide; 1,3-di(tert-butylperoxyisopropyl)benzene.
6. The method for intelligently preparing a silicone rubber for a silicone rubber cable for rail transit according to claim 3, wherein the chopped glass fiber has a length of 0.1 to 0.2 mm, preferably a length of 0.15 mm.
7. The method for preparing an intelligent silicone rubber for a silicone rubber cable for rail transit according to claim 3, wherein the anti-aging agent is selected from the group consisting of: N-phenyl-N'-cyclohexyl p-phenylenediamine, N- phenyl-N'-isopropyl-p-phenylenediamine, NN At least one of `-diphenyl-p-phenylenediamine and 6-di-tert-butyl-p-cresol.

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