Fire-resisting cable with high strength and pressure resisting for ship and preparation method thereof

A fire-resistant cable, high-strength technology, used in cable/conductor manufacturing, insulating cables, insulating conductors/cables, etc., can solve problems such as defective tensile performance, poor lateral pressure resistance, and insufficient fire resistance. High tensile strength, protection strength, good fire resistance

Pending Publication Date: 2018-02-16

ANHUI AICS SCI & TECH GROUP

0 Cites 1 Cited by

AI-Extracted Technical Summary

Problems solved by technology

With the development of modernization and national defense construction, higher requirements are put forward for fire-resistant cables for ships. Conven...

Method used

Applied ceramic silicon rubber material as the insulating layer and sheath layer of cable, bring into play its fire-resistant characteristics, when breaking out of fire or high temperature 800-900 ℃, cable becomes ceramic state, prevents the power supply of short circuit from affecting cable; The spiral steel belt hose structure commonly used in optical cables is used to effectively protect the inner insulating core wire and prevent the insulation layer from being crushed when trampled or heavy pressure is detected. The spiral steel belt hose also increases the bending capacity of the cable; Ceramic Silicone rubber belt is used as a filler, which forms a hard ceramic structure at high temperature or fire, and will not be carbonized to affect the structure. At the same time, compared with g...

Abstract

The invention discloses a high-strength and pressure-resistant fire-resistant cable for ships, which includes a cable core, a filling unit, a wrapping layer, a braiding layer and a sheath layer. The invention also discloses a preparation method of a high-strength and pressure-resistant fire-resistant cable for ships; including (1) preparation of a single cable core; (2) preparation of a cable core unit; (3) preparation of a tape layer ;(4) Preparation of the braiding layer; (5) Preparation of the sheath layer; Ceramic silicone rubber material is used as the insulation layer and sheath layer of the cable to play its fire-resistant characteristics. In case of fire or high temperature 800‑900 At ℃, the cable will be in ceramic state to prevent short circuit from affecting the power supply of the cable; the ceramicized silicon rubber belt is used as filling, and it will form a hard ceramic structure at high temperature or fire, which will not be carbonized and affect the structure. Polyolefin materials give full play to their respective advantages. Aramid fiber has high tensile strength, and ceramic polyolefin materials have good fire resistance. The braided layer is mesh-shaped, which can effectively protect the strength of the cable.

Application Domain

Insulated cablesInsulated conductors +1

Technology Topic

High intensityBraid +13

Image

Examples

Experimental program(3)

Example Embodiment

[0041] Example 1

[0042] A method for preparing a high-strength and pressure-resistant fire-resistant cable for ships includes the following steps:

[0043] (1) Preparation of single cable core:

[0044] a. The small wire drawing machine draws the required single conductor wire, using drawing oil for 18%, water accounting for 82% and mixing each other to make drawing oil, using drawing oil for 0.08%, and water for 99.2% to make boiling oil. The 3.00mm single wire is drawn into a 2.53mm single wire through 2.80mm, 2.56mm, 2.53mm multiple wire dies. The pressure of the automatic annealing process is 2.4Mpa, the coefficient voltage is 24.5V, the coefficient current is 900A, and the linear speed is 150m/ min; The drawn single conductor wires are respectively rewinded on a rewinding machine to a corresponding number, and then twisted by the tube stranding machine to form the conductor of the cable. The stranding pitch ratio of the conductor is 14 times the outer diameter of the conductor, and the stranding direction is the same The adjacent layer is opposite, the outermost layer is left;

[0045] b. Use a special ceramic silicon rubber extruder to extrude a layer of ceramic silicon rubber resin as an insulating layer on the outside of the conductor. When preparing the insulating material, add 1 kg of ceramic silicon rubber base material, 0.1 kg of double S vulcanizing agent, and 0.04 kg of color. The masterbatch, the three are fully mixed by a mixer, and the extrusion die is formed by sintering at multiple zones. The temperature curve of each zone is 230℃, 250℃, 250℃, 250℃, 280℃, 280℃ , 285℃, 285℃, 280℃, 280℃, 250℃, 230℃, 200℃, the production screw speed is 12.5rpm, the traction speed is 2.4m/min, after sintering, it passes through the water tank and the cooling guide wheel at room temperature. , The temperature of the hot water tank is the ambient temperature, the temperature is 15℃;

[0046] c. Use a steel tape armoring machine to wind a layer of metal hose outside the insulation layer. The material of the metal hose is 304 stainless steel tape. The thickness of the steel tape is 0.30mm, the width is 2.00 mm, and the pitch is required, 3 turns/cm. , The production speed is controlled at 1.0m/min, and a certain gap is maintained between the insulating layer and the metal hose.

[0047] (2) Preparation of cable core unit:

[0048] Two or more multi-cable cores are twisted by planetary multi-reel cable forming machine, and ceramized silicon rubber tape is twisted as the filling material during the twisting process. The twisting pitch ratio is 12 times that of the cable core. The direction is Z direction;

[0049] (3) Preparation of the cladding layer:

[0050] At the same time as the above unit is completed, a layer of ceramic silicon rubber belt is wrapped with a planetary cage cable machine with a width of 20.0mm and a thickness of 0.20mm. The wrapping control belt is 15%, and the wrapping direction is left.

[0051] Twist the aramid fiber, the shielded insulated cable core, and the optical unit into a photoelectric hybrid unit, the stranding pitch is 8 times the outer diameter of the cable, and the stranding direction is S direction;

[0052] (4) Preparation of braid:

[0053] a. The braided rope is extruded with a layer of ceramicized polyolefin plastic from aramid filaments. The aramid specification used is 1110D, and the thickness of the ceramicized polyolefin outside is 0.20 mm. The production pressure is 145℃, 155℃, 165℃ , 175℃, 185℃, 185℃ temperature curve setting, and color matching at the same time, the production screw speed is 2.0rpm, the traction speed is 12.0m/min.

[0054] b. Rewind the finished braided rope into 32 spindles, install the 32 spindles on a 32-spindle horizontal braiding machine, set a pitch of 80.0mm, and a knitting speed of 2.0m/min.

[0055] Make the braid of the cable;

[0056] (5) Preparation of sheath layer:

[0057] After the braid of the cable is made, a layer of ceramicized silicone rubber resin is extruded as a sheath layer in a special ceramicized silicone rubber extruder. When preparing the insulating material, add 1kg of ceramicized silicone rubber base material and 0.1kg of double S vulcanization Color masterbatch, 0.04kg color masterbatch, the three are fully mixed by a mixer, and the extrusion die is formed by sintering at multiple zones. The temperature curve of each zone is 230, 250, 250, 250, 280, 280, 285, 285, 280, 280, 250, 230, 200, the production screw speed is 23.5rpm, the traction speed is 1.8m/min, after sintering, the temperature of the water tank, the normal temperature cooling guide wheel passing groove, and the hot water tank are the ambient temperature , The general temperature is 15℃;

[0058] Before extruding the ceramized silicone rubber, the cable core was placed at a set temperature of 80°C for 48 hours.

Example Embodiment

[0059] Example 2

[0060] A method for preparing a high-strength and pressure-resistant fire-resistant cable for ships includes the following steps:

[0061] (1) Preparation of single cable core:

[0062] a. The small wire drawing machine draws the required single conductor wires. 19% of wire drawing oil and 81% of water are used to make drawing oil, 0.09% of drawing oil and 99.1% of water are mixed to make a stew oil. The 3.00mm single wire is drawn into a 2.53mm single wire through 2.80mm, 2.56mm, 2.53mm multiple wire dies. The pressure of the automatic annealing process is 2.45Mpa, the coefficient voltage is 26.0V, the coefficient current is 950A, and the linear speed is 200m/ min; The drawn single conductor wires are respectively rewinded on the rewinding machine to a corresponding number, and then twisted by the tube stranding machine to form the conductor of the cable. The stranding pitch ratio of the conductor is 15 times the outer diameter of the conductor, and the stranding direction is the same The adjacent layer is opposite, the outermost layer is left;

[0063] b. Use a special ceramic silicon rubber extruder to extrude a layer of ceramic silicon rubber resin as an insulating layer on the outside of the conductor. When preparing the insulating material, add 1 kg of ceramic silicon rubber base material, 0.1 kg of double S vulcanizing agent, and 0.04 kg of color. The masterbatch, the three are fully mixed by a mixer, and the extrusion die is formed by sintering at multiple zones. The temperature curve of each zone is 230℃, 250℃, 250℃, 250℃, 280℃, 280℃ , 285℃, 285℃, 280℃, 280℃, 250℃, 230℃, 200℃, the production screw speed is 12.6rpm, the traction speed is 2.5m/min, after sintering, it passes through the water tank and the cooling guide wheel at room temperature. , The temperature of the hot water tank is the ambient temperature, the general temperature is 18℃;

[0064] c. Use a steel tape armoring machine to wind a layer of metal hose outside the insulation layer. The material of the metal hose is 304 stainless steel tape. The thickness of the steel tape is 0.30mm, the width is 2.05mm, and the pitch is required to be 3.5 turns/cm. , The production speed is controlled at 1.1m/min, and a certain gap is maintained between the insulating layer and the metal hose.

[0065] (2) Preparation of cable core unit:

[0066] Two or more multi-cable cores are twisted by planetary multi-reel cable forming machine, and ceramic silicon rubber tape is twisted as filling material during the twisting process. The twisting pitch ratio is 13 times that of the cable core. The direction is Z direction;

[0067] (3) Preparation of the cladding layer:

[0068] At the same time as the above unit is completed, a layer of ceramic silicon rubber belt is wrapped with a planetary cage cable forming machine with a width of 25.0mm and a thickness of 0.25mm. The wrapping control belt is 18%, and the wrapping direction is left.

[0069] Twist the aramid fiber, the shielded insulated cable core, and the optical unit into a photoelectric hybrid unit, the stranding pitch is 9 times the cable outer diameter, and the stranding direction is S direction;

[0070] (4) Preparation of braid:

[0071] a. The braided rope is extruded with a layer of ceramicized polyolefin plastic from aramid filaments. The aramid specification used is 1110D, and the thickness of the ceramicized polyolefin outside is 0.20 mm. The production pressure is 145℃, 155℃, 165℃ , 175℃, 185℃, 185℃ temperature curve setting, and color matching at the same time, the production screw speed is 2.3rpm, the traction speed is 12.5m/min.

[0072] b. Rewind the finished braided rope into 32 spindles, install the 32 spindles on a 32-spindle horizontal braiding machine, set the pitch 80.5mm, and the knitting speed 2.5m/min.

[0073] Make the braid of the cable;

[0074] (5) Preparation of sheath layer:

[0075] After the braid of the cable is made, a layer of ceramicized silicone rubber resin is extruded as a sheath layer in a special ceramicized silicone rubber extruder. When preparing the insulating material, add 1kg of ceramicized silicone rubber base material and 0.1kg of double S vulcanization Color masterbatch, 0.04kg, the three are fully mixed by a mixer, and the extrusion die is formed by sintering at multiple zones. The temperature curves of each zone are 230, 250, 250, 250, 280 ℃, 280℃, 285℃, 285℃, 280℃, 280℃, 250℃, 230℃, 200℃, the production screw speed is 23.6rpm, the traction speed is 1.9m/min, after sintering, it passes through a water tank and a cooling guide at room temperature The temperature of the wire trough and hot water tank is the ambient temperature, and the general temperature is 18℃;

[0076] Before extruding the ceramized silicone rubber, the cable core was placed at a set temperature of 81°C for 60 hours.

Example Embodiment

[0077] Example 3

[0078] A method for preparing a high-strength and pressure-resistant fire-resistant cable for ships, which is characterized in that it comprises the following steps:

[0079] (1) Preparation of single cable core:

[0080] a. The small wire drawing machine draws the required single conductor wire. 20% of drawing oil and 80% of water are used to make drawing oil, 0.10% of drawing oil and 99.0% of water are mixed to make stewing oil. The 3.00mm single wire is drawn into a 2.53mm single wire through 2.80mm, 2.56mm, 2.53mm multiple wire dies. The pressure of the automatic annealing process is 2.5Mpa, the coefficient voltage is 27.0V, the coefficient current is 1000A, and the line speed is 250m/ min; The drawn single conductor wires are respectively rewinded on the rewinding machine to a corresponding number, and then twisted by the tube stranding machine to form the conductor of the cable. The stranding pitch ratio of the conductor is 16 times the outer diameter of the conductor, and the stranding direction is the same The adjacent layer is opposite, the outermost layer is left;

[0081] b. Use a special ceramic silicon rubber extruder to extrude a layer of ceramic silicon rubber resin as an insulating layer on the outside of the conductor. When preparing the insulating material, add 1 kg of ceramic silicon rubber base material, 0.1 kg of double S vulcanizing agent, and 0.04 kg of color. Masterbatch, the three are fully mixed by a mixer, and the extrusion die is formed by sintering at multiple zones. The temperature curve of each zone is 230, 250, 250, 250, 280, 280, 285, 285, 280 , 280, 250, 230, 200, the production screw speed is 12.8rpm, the traction speed is 2.6m/min, after sintering, the temperature of the water tank, the normal temperature cooling guide wheel, the hot water tank is the ambient temperature, and the general temperature is 20 ℃;

[0082] c. Use a steel tape armoring machine to wind a layer of metal hose outside the insulation layer. The material of the metal hose is 304 stainless steel tape. The thickness of the steel tape is 0.30mm, the width is 0.10 mm, and the pitch is required, 4 turns/cm. , The production speed is controlled at 1.2m/min, and a certain gap is maintained between the insulating layer and the metal hose.

[0083] (2) Preparation of cable core unit:

[0084] Two or more multi-cable cores are twisted by planetary multi-reel cable forming machine, and ceramic silicon rubber tape is twisted as filling material during the twisting process. The twisting pitch ratio is 14 times that of the cable core. The direction is Z direction;

[0085] (3) Preparation of the cladding layer:

[0086] At the same time when the above units are completed, a planetary cage cable forming machine is used to wrap a layer of ceramic silicon rubber belt with a width of 30.0mm and a thickness of 0.30mm. The wrapping control belt is 20%, and the wrapping direction is left.

[0087] Twist the aramid fiber, shielded insulated cable core and optical unit into a photoelectric hybrid unit, the stranding pitch is 10 times the outer diameter of the cable, and the stranding direction is S direction;

[0088] (4) Preparation of braid:

[0089] a. The braided rope is extruded with a layer of ceramicized polyolefin plastic from aramid filaments. The aramid specification used is 1110D, and the thickness of the outer ceramicized polyolefin is 0.20 mm. The production is according to 145, 155, 165, 175, Set the temperature curve at 185 and 185°C and perform color matching at the same time. The production screw speed is 2.5rpm and the traction speed is 13.0m/min.

[0090] b. Rewind the finished braided rope into 32 spindles, install the 32 spindles on a 32-spindle horizontal braiding machine, set a pitch of 81.0mm, and a braiding speed of 3.0m/min.

[0091] Make the braid of the cable;

[0092] (5) Preparation of sheath layer:

[0093] After the braid of the cable is made, a layer of ceramicized silicone rubber resin is extruded as a sheath layer in a special ceramicized silicone rubber extruder. When preparing the insulating material, add 1kg of ceramicized silicone rubber base material and 0.1kg of double S vulcanization Color masterbatch, 0.04kg color masterbatch, the three are fully mixed by a mixer, and the extrusion die is formed by sintering at multiple zones. The temperature curve of each zone is 230, 250, 250, 250, 280, 280, 285, 285, 280, 280, 250, 230, 200, the production screw speed is 23.5-23.8rpm, the traction speed is 2.0m/min, after sintering, the temperature after sintering through the water tank, normal temperature cooling guide wheel passing groove, and hot water tank is Ambient temperature, the general temperature is 20℃;

[0094] Before extruding the ceramized silicone rubber, the cable core was placed at a set temperature of 82°C for 72 hours.

[0095] Ceramic silicon rubber material is used as the insulation layer and sheath layer of the cable, which gives full play to its fire-resistant characteristics. In the event of a fire or a high temperature of 800-900 ℃, the cable becomes a ceramic state to prevent a short circuit from affecting the power supply of the cable; optical cables are commonly used The spiral steel belt hose structure effectively protects the inner insulating core wire and prevents the insulation layer from being crushed when stepping or heavy pressure is detected. The spiral steel belt hose also increases the bending ability of the cable; ceramic silicon rubber Tape is used as a filling, it becomes a ceramic hard structure at high temperature or fire, and it will not be carbonized to affect the structure. At the same time, it has less impact on the operator's skin compared with glass fiber filling; Aramid is extruded with ceramic polyolefin material to play The advantages of each are the high tensile strength of aramid fiber, the good fire resistance of ceramicized polyolefin material, and the mesh of braided layer, which effectively protects the strength of the cable.

[0096] The advantage of this high-strength and pressure-resistant fire-resistant cable for ships is to comprehensively consider the shortcomings of the cable’s poor tensile strength, non-pressure resistance and poor fire resistance. It is designed to increase the insulation layer of loose tube spiral steel tape armoring and use ceramic Polyolefin aramid braided rope achieves high strength, and ceramicized plastic is used to increase the fire resistance of the cable.

PUM

Property	Measurement	Unit
Thickness	0.3	mm
Thickness	0.2	mm
Width	2.0	mm

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.

Classification and recommendation of technical efficacy words

Improve bending ability
avoid crushing

Fire-resisting cable with high strength and pressure resisting for ship and preparation method thereof

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

Image

Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

Similar technology patents

Electronic mosquito swatter

Fixing device for glass grinding of GPS

Laminated chip inductor

Stamping device for aluminum alloy profile machining

Sealing and detecting integrated equipment for biscuit production and capable of avoiding extrusion crushing

Classification and recommendation of technical efficacy words

Revetment T shaped pile with tongue and groove

Thin film encapsulation structure, OLED (organic light emitting diode) display panel and manufacturing method thereof

Double-row pile foundation pit reinforcement structure

Rock wool board and production method thereof

Side protecting plate for coal mine and forming process of side protecting plate

Method for locking and pressing false boss

Display screen film tearing device and display screen production line

Electronic mosquito swatter

Fixing device for glass grinding of GPS

Stamping device for aluminum alloy profile machining