CN114589901A - Special sheath frameless material for flexible cable and process - Google Patents
Special sheath frameless material for flexible cable and process Download PDFInfo
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- CN114589901A CN114589901A CN202210055742.9A CN202210055742A CN114589901A CN 114589901 A CN114589901 A CN 114589901A CN 202210055742 A CN202210055742 A CN 202210055742A CN 114589901 A CN114589901 A CN 114589901A
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- smelting
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- flexible cable
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- 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
- B29C48/154—Coating solid articles, i.e. non-hollow articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
-
- 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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/355—Conveyors for extruded articles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a special sheath frameless material for a flexible cable and a process, the special sheath frameless material comprises base resin, a stabilizer, a plasticizer, a lubricant and an inorganic filler, wherein the base resin is made of TPU (thermoplastic polyurethane), the stabilizer is made of SH-A01 lead salt, the plasticizer is made of DOP (dope) and DOTP (DOP) by combining, the inorganic filler is a silk screen woven by high-strength silk yarns, the mass percent of the base resin is 65-70%, the mass percent of the stabilizer is 10-12%, the mass percent of the plasticizer is 10-15%, and the mass percent of the lubricant is 5-7%. This special sheath of flexible cable does not have frame material and technology adopts specific raw materials ratio to make the material of producing can bear behind the support cable sheath and pull the use in excess of 3000 ten thousand reciprocal to the material has better compliance and wearability and can not need outside track protection when the installation, makes the installation after occupation space less and use cost reduction.
Description
Technical Field
The invention relates to the technical field of flexible cable sheath materials, in particular to a frame-free material and a process of a special sheath for a flexible cable.
Background
The flexible cable is a flexible wire material, which is widely used in automation control assembly lines and machine tools, and is also called as a towline cable, a mobile cable, etc., the wire structure of the flexible cable is mainly a twisted copper wire according to IEC228 standard, a sheath is required to be used to effectively wrap the exterior of the cable, the cable sheath is the outermost layer of the whole cable, which is used as the most important barrier for the safety of the internal structure in cable maintenance, the cable is not mechanically damaged during and after the cable is maintained, the cable sheath is not to replace the reinforcing and protection device in the cable, but they can provide proper high-level but limited maintenance means, besides, the cable sheath also provides maintenance of moisture, chemistry, ultraviolet rays and ozone, the flexible cable can reduce the loss of the cable during reciprocating movement by using its soft texture, and the situation of crack and break does not occur, the choice of cable jacket material is made with a view to compatibility with the application connector and compatibility with the environment.
In the prior art, the grant publication number of CN106977778B discloses a preparation method of a flexible cable sheath material, and belongs to the technical field of cable materials. The method comprises the following steps: according to the weight parts, 40-55 parts of rubber base material, 5-15 parts of silicon rubber, 3-6 parts of tackifying resin, 1-3 parts of anti-aging agent, 4-7 parts of reinforcing agent, 5-8 parts of filler, 2-4 parts of vulcanization accelerator, 3-5 parts of vulcanizing agent, 3-5 parts of plasticizer, 3-5 parts of active agent and 3-6 parts of organic solvent are uniformly mixed and fed into a double-screw extruder for extrusion granulation, and the granules are dried in a hot air dryer to obtain a sheath material; the prepared cable sheath material has the advantages of good tensile property, good insulating property and good solvent corrosion resistance.
However, the flexibility of the existing cable sheath material has certain defects, so that when the cable sheath material is installed on automation equipment, a crawler belt is required to be used for protection and fixation outside, the installation space is occupied, the overall use cost is also improved, and the overall strength is reduced in order to improve the flexibility of the device, so that the cable sheath material is not required to be dragged for use for many times.
Aiming at the problems, innovative design is urgently needed on the basis of the original flexible cable material.
Disclosure of Invention
The invention aims to provide a frame-free material and a process for a special sheath of a flexible cable, and aims to solve the problems that in the background art, a crawler belt is required to be used to increase the occupied space and improve the use cost, and the whole service life is not influenced by the realization of multiple dragging use.
In order to achieve the purpose, the invention provides the following technical scheme: the special jacket frameless material for the flexible cable comprises base resin, a stabilizer, a plasticizer, a lubricant and an inorganic filler, wherein the base resin is made of TPU, and the stabilizer is SH-A01 lead salt material.
Preferably, the plasticizer is a combination of two materials of DOP and DOTP, and the mass ratio of the DOP to the DOTP is 1: 2.
preferably, the lubricant is polyethylene wax which is stable to supply, and the inorganic filler is a silk screen woven by high-strength silk yarns.
Preferably, the mass percent of the base resin is 65-70%, the mass percent of the stabilizer is 10-12%, the mass percent of the plasticizer is 10-15%, and the mass percent of the lubricant is 5-7%.
Preferably, the method comprises the following steps:
a: mixing and smelting, namely placing various raw materials in a smelting container according to the proportion, wherein a stirrer is arranged in the smelting container, and a bidirectional stirring blade is arranged in the stirring container;
b: performing calendaring molding, namely discharging the fully mixed and stirred raw materials and calendaring by using a calendar, wherein the adjustable range of the distance of the calendar is 4-8 cm;
c: granulating raw materials, namely putting the mixed raw materials which are placed, stored and cooled into a plastic granulator through a feeding mechanism to complete granulation, wherein the diameter is changed according to actual needs after granulation;
d: packaging and bagging, wherein materials manufactured by a granulator are packaged and sealed by an automatic packaging machine, and the granulator and the packaging machine form an automatic assembly line;
e: and extruding a finished product, namely putting the packaged raw material particles into a single-screw extruder according to the required amount, wherein a cable conductor is placed at the discharge position of the single-screw extruder, and the inorganic filler is arranged between the cable conductor and the raw material.
Preferably, the mixed smelting is divided into two operations, wherein the temperature of the first smelting is 90-100 ℃, the mixed smelting time is 5-10 min, the temperature of the second smelting is 100-110 ℃, and the smelting time is 2-3 min.
Preferably, a standing period of 5 hours is set between the first smelting and the second smelting, and the ambient temperature in the standing period is 20-25 ℃.
Preferably, the thickness of the product after the calendaring molding is 5-7 min, and the diameter of the product after the raw materials are granulated is 6-7 cm.
Preferably, the finished product extrusion is divided into three stages of plasticization, molding and shaping, wherein the plasticization temperature is 100-105 ℃, the molding temperature is 85-90 ℃, and the shaping temperature is 20-30 ℃.
Preferably, the shaping stage is to immerse the extruded jacket product in flowing room-temperature clean water for cooling and shaping.
Compared with the prior art, the invention has the beneficial effects that: the special sheath frameless material for the flexible cable and the process thereof adopt specific raw material proportion, so that the produced material can bear more than 3000 ten thousand times of reciprocating dragging after supporting the cable sheath, and the material has better flexibility and wear resistance, so that external crawler belt protection is not needed when the material is installed, the occupied space after the installation is smaller, and the use cost is reduced;
the strength of the whole material can be improved on the basis of not losing the flexibility of the material after the base resin made of TPU and the plasticizer mixed and proportioned by two materials of DOP and DOTP are mixed and manufactured according to a proper proportion, so that the material can be dragged and used for more than 3000 ten thousand times, and an external crawler belt can not be used for protection in the using process;
2. the material can be fully mixed by using raw materials of all parts in the device after being smelted twice, so that the optimal performance is exerted, and the inorganic filler can be used for avoiding the direct contact between the material and a lead during extrusion, so that the waste of the raw materials in the manufacturing process is avoided.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the high-performance composite material comprises base resin, a stabilizer, a plasticizer, a lubricant and an inorganic filler, wherein the base resin is a TPU material, and the stabilizer is an SH-A01 lead salt material.
The plasticizer is a combination of two materials of DOP and DOTP, and the mass ratio of the DOP to the DOTP is 1: 1.
the lubricant adopts polyethylene wax with stable supply, and the inorganic filler is a silk screen woven by high-strength silk yarns.
The mass percentage of the base resin was 70%, and the mass percentage of the stabilizer was 10%, and the mass percentage of the plasticizer was 15%, while the mass percentage of the lubricant was 5%.
The method comprises the following steps:
a: mixing and smelting, namely placing various raw materials in a smelting container according to the proportion, wherein a stirrer is arranged in the smelting container, and a bidirectional stirring blade is arranged in the stirring container;
b: performing calendaring molding, namely discharging the fully mixed and stirred raw materials and calendaring by using a calendar, wherein the adjustable range of the distance of the calendar is 4cm-8 cm;
c: granulating raw materials, namely putting the mixed raw materials which are placed, stored and cooled into a plastic granulator through a feeding mechanism to complete granulation, wherein the diameter is changed according to actual needs after granulation;
d: packaging and bagging, wherein materials manufactured by a granulator are bagged and sealed by an automatic packaging machine, and the granulator and the packaging machine form an automatic assembly line;
e: and extruding a finished product, namely putting the packaged raw material particles into a single-screw extruder according to the required amount, wherein a cable conductor is placed at the discharge position of the single-screw extruder, and an inorganic filler is arranged between the cable conductor and the raw material.
The mixed smelting is divided into two operations, wherein the temperature of the first smelting is 90-100 ℃, the mixed smelting time is 5-10 min, the temperature of the second smelting is 100-110 ℃, and the smelting time is 2-3 min.
A standing period of 5 hours is formed between the first smelting and the second smelting, and the ambient temperature in the standing period is 20-25 ℃.
The thickness of the product after calendaring molding is 5-7 min, and the diameter of the product after raw material granulation is 6-7 cm.
The finished product extrusion is divided into three stages of plasticization, molding and shaping, wherein the plasticization temperature is 100-105 ℃, the molding temperature is 85-90 ℃, and the shaping temperature is 20-30 ℃.
The shaping stage is to immerse the extruded jacket product into flowing room-temperature clean water for cooling and shaping.
At this time, the cable sheath manufactured through the steps has good flexibility, but the overall strength is low, and the cable sheath can bear 2000 ten thousand reciprocating operations in a pulling test.
Example two:
the high-performance composite material comprises base resin, a stabilizer, a plasticizer, a lubricant and an inorganic filler, wherein the base resin is a TPU material, and the stabilizer is an SH-A01 lead salt material.
The plasticizer is a combination of two materials of DOP and DOTP, and the mass ratio of the DOP to the DOTP is 1: 2.
the lubricant adopts polyethylene wax with stable supply, and the inorganic filler is a silk screen woven by high-strength silk yarns.
The mass percentage of the base resin was 66%, and the mass percentage of the stabilizer was 12%, and the mass percentage of the plasticizer was 15%, while the mass percentage of the lubricant was 7%.
The method comprises the following steps:
a: mixing and smelting, namely placing various raw materials in a smelting container according to the proportion, wherein a stirrer is arranged in the smelting container, and a bidirectional stirring blade is arranged in the stirring container;
b: performing calendaring molding, namely discharging the fully mixed and stirred raw materials and calendaring by using a calendar, wherein the adjustable range of the distance of the calendar is 4cm-8 cm;
c: granulating raw materials, namely putting the mixed raw materials which are placed, stored and cooled into a plastic granulator through a feeding mechanism to complete granulation, wherein the diameter is changed according to actual needs after granulation;
d: packaging and bagging, wherein materials manufactured by a granulator are bagged and sealed by an automatic packaging machine, and the granulator and the packaging machine form an automatic assembly line;
e: and extruding a finished product, namely putting the packaged raw material particles into a single-screw extruder according to the required amount, wherein a cable conductor is placed at the discharge position of the single-screw extruder, and an inorganic filler is arranged between the cable conductor and the raw material.
The mixed smelting is divided into two operations, wherein the temperature of the first smelting is 90-100 ℃, the mixed smelting time is 5-10 min, the temperature of the second smelting is 100-110 ℃, and the smelting time is 2-3 min.
The standing period is 5 hours between the first smelting and the second smelting, and the ambient temperature in the standing period is 20-25 ℃.
The thickness of the product after calendaring molding is 5-7 min, and the diameter of the product after raw material granulation is 6-7 cm.
The finished product extrusion is divided into three stages of plasticization, molding and shaping, wherein the plasticization temperature is 100-105 ℃, the molding temperature is 85-90 ℃, and the shaping temperature is 20-30 ℃.
The shaping stage is to immerse the extruded jacket product into flowing room-temperature clean water for cooling and shaping.
At this time, the cable sheath manufactured through the steps has high rigidity, but poor following degree due to insufficient flexibility can be generated in the reciprocating movement using process, the cable sheath is easy to contact with other external devices due to incomplete bending, so that the whole friction loss is increased, the cable sheath is easy to break, and only 1500 ten thousand reciprocating operations are borne in a pulling test.
Example three:
the high-performance thermoplastic polyurethane resin comprises base resin, a stabilizer, a plasticizer, a lubricant and inorganic filler, wherein the base resin is made of TPU (thermoplastic polyurethane), and the stabilizer is SH-A01 lead salt material.
The plasticizer is a combination of two materials of DOP and DOTP, and the mass ratio of the DOP to the DOTP is 1: 2.
the lubricant adopts polyethylene wax with stable supply, and the inorganic filler is a silk screen woven by high-strength silk yarns.
The mass percentage of the base resin was 70%, and the mass percentage of the stabilizer was 10%, and the mass percentage of the plasticizer was 15%, while the mass percentage of the lubricant was 5%.
The method comprises the following steps:
a: mixing and smelting, namely placing various raw materials in a smelting container according to the proportion, wherein a stirrer is arranged in the smelting container, and a bidirectional stirring blade is arranged in the stirring container;
b: performing calendaring molding, namely discharging the fully mixed and stirred raw materials and calendaring by using a calendar, wherein the adjustable range of the distance of the calendar is 4cm-8 cm;
c: granulating raw materials, namely putting the mixed raw materials which are placed, stored and cooled into a plastic granulator through a feeding mechanism to complete granulation, wherein the diameter is changed according to actual needs after granulation;
d: packaging and bagging, wherein materials manufactured by a granulator are bagged and sealed by an automatic packaging machine, and the granulator and the packaging machine form an automatic assembly line;
e: and extruding a finished product, namely putting the packaged raw material particles into a single-screw extruder according to the required amount, wherein a cable conductor is placed at the discharge position of the single-screw extruder, and an inorganic filler is arranged between the cable conductor and the raw material.
The mixed smelting is divided into two operations, wherein the temperature of the first smelting is 90-100 ℃, the mixed smelting time is 5-10 min, the temperature of the second smelting is 100-110 ℃, and the smelting time is 2-3 min.
The standing period is 5 hours between the first smelting and the second smelting, and the ambient temperature in the standing period is 20-25 ℃.
The thickness of the product after calendaring molding is 5-7 min, and the diameter of the product after raw material granulation is 6-7 cm.
The finished product extrusion is divided into three stages of plasticization, molding and shaping, wherein the plasticization temperature is 100-105 ℃, the molding temperature is 85-90 ℃, and the shaping temperature is 20-30 ℃.
The shaping stage is to immerse the extruded jacket product into flowing room-temperature clean water for cooling and shaping.
The finished product of this time production has flexibility and intensity concurrently, bears more than 3000 ten thousand reciprocating operations in dragging the test to do not install outside track and do not cause the influence to in-service use in actual testing.
Those not described in detail in this specification are within the skill of the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The special sheath frameless material for the flexible cable comprises base resin, a stabilizer, a plasticizer, a lubricant and inorganic filler, and is characterized in that: the base resin is made of TPU, and the stabilizer is SH-A01 lead salt material.
2. The frame-free material for a sheath used for a flexible cable according to claim 1, wherein: the plasticizer is a combination of DOP and DOTP materials, and the mass ratio of the DOP to the DOTP materials is 1: 2.
3. the jacket frameless material for flexible cables of claim 1, wherein: the lubricant is polyethylene wax with stable supply, and the inorganic filler is a silk screen woven by high-strength silk yarns.
4. The frame-free material for a sheath used for a flexible cable according to claim 1, wherein: the mass percent of the base resin is 65-70%, the mass percent of the stabilizer is 10-12%, the mass percent of the plasticizer is 10-15%, and the mass percent of the lubricant is 5-7%.
5. The preparation process of the special sheath frameless material for the flexible cable is characterized in that: the method comprises the following steps:
a: mixing and smelting, namely putting various raw materials into a smelting container according to a ratio, wherein a stirrer is arranged in the smelting container, and a bidirectional stirring blade is arranged in the stirring container;
b: performing calendaring molding, namely discharging the fully mixed and stirred raw materials and calendaring by using a calendar, wherein the adjustable range of the distance of the calendar is 4-8 cm;
c: granulating raw materials, namely putting the mixed raw materials which are placed, stored and cooled into a plastic granulator through a feeding mechanism to complete granulation, wherein the diameter is changed according to actual needs after granulation;
d: packaging and bagging, wherein materials manufactured by a granulator are packaged and sealed by an automatic packaging machine, and the granulator and the packaging machine form an automatic assembly line;
e: and extruding a finished product, namely putting the packaged raw material particles into a single-screw extruder according to the required amount, wherein a cable conductor is placed at the discharge position of the single-screw extruder, and an inorganic filler is arranged between the cable conductor and the raw material.
6. The preparation process of the frameless material for the sheath of the flexible cable according to claim 5, wherein: the mixed smelting is divided into two operations, wherein the temperature of the first smelting is 90-100 ℃, the mixed smelting time is 5-10 min, the temperature of the second smelting is 100-110 ℃, and the smelting time is 2-3 min.
7. The preparation process of the frameless material for the sheath of the flexible cable according to claim 6, wherein the preparation process comprises the following steps: the standing period is 5 hours between the first smelting and the second smelting, and the ambient temperature in the standing period is 20-25 ℃.
8. The preparation process of the frameless material for the sheath of the flexible cable according to claim 5, wherein: the thickness of the product after the calendering molding is 5-7 min, and the diameter of the product after the raw materials are granulated is 6-7 cm.
9. The preparation process of the frameless material for the sheath of the flexible cable according to claim 5, wherein: the finished product extrusion is divided into three stages of plasticization, molding and shaping, wherein the plasticization temperature is 100-105 ℃, the molding temperature is 85-90 ℃, and the shaping temperature is 20-30 ℃.
10. The preparation process of the frameless material for the sheath of the flexible cable according to claim 9, wherein: the shaping stage is to immerse the extruded jacket product into flowing room-temperature clean water for cooling and shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210055742.9A CN114589901A (en) | 2022-01-18 | 2022-01-18 | Special sheath frameless material for flexible cable and process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210055742.9A CN114589901A (en) | 2022-01-18 | 2022-01-18 | Special sheath frameless material for flexible cable and process |
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| CN114589901A true CN114589901A (en) | 2022-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210055742.9A Pending CN114589901A (en) | 2022-01-18 | 2022-01-18 | Special sheath frameless material for flexible cable and process |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382411A (en) * | 2010-08-30 | 2012-03-21 | 浙江万马电缆股份有限公司 | Twisting-resistant flexible cable sheath material for wind power generation, as well as preparation method and application thereof |
| CN106024138A (en) * | 2016-08-15 | 2016-10-12 | 江苏亨通线缆科技有限公司 | Soft anti-bending cable for intelligent equipment |
| CN113773636A (en) * | 2021-07-27 | 2021-12-10 | 乐庭电线工业（惠州）有限公司 | Polyurethane elastomer cable sheath material and cable preparation method |
-
2022
- 2022-01-18 CN CN202210055742.9A patent/CN114589901A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382411A (en) * | 2010-08-30 | 2012-03-21 | 浙江万马电缆股份有限公司 | Twisting-resistant flexible cable sheath material for wind power generation, as well as preparation method and application thereof |
| CN106024138A (en) * | 2016-08-15 | 2016-10-12 | 江苏亨通线缆科技有限公司 | Soft anti-bending cable for intelligent equipment |
| CN113773636A (en) * | 2021-07-27 | 2021-12-10 | 乐庭电线工业（惠州）有限公司 | Polyurethane elastomer cable sheath material and cable preparation method |
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