CN111849057A - B1-grade low-smoke halogen-free insulating material and preparation method thereof - Google Patents
B1-grade low-smoke halogen-free insulating material and preparation method thereof Download PDFInfo
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
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- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
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Abstract
The invention discloses a B1-grade low-smoke halogen-free insulating material and a preparation method thereof, relating to the field of low-smoke halogen-free production and comprising the following components in parts by mass: 20-30 parts by mass of EVA; 15-20 parts of glass fiber powder; 10-15 parts of ceramic micro powder; 10-15 parts by mass of magnesium hydroxide; 10-15 parts by mass of aluminum hydroxide; 10-20 parts by mass of a silane coupling agent; 5-10 parts of a slipping agent; 5-10 parts by mass of an antioxidant; 5-10 parts of hydrotalcite. According to the invention, by adding 15-20 parts by mass of glass fiber powder and 10-15 parts by mass of ceramic micro powder into the raw materials, the glass fiber powder is used as a filling material to improve the hardness and compressive strength of a product, and reduce the shrinkage rate, the width of grinding marks, the abrasion and the production cost of the product, and the ceramic micro powder can improve the adsorptivity, weather resistance, durability, scrub resistance, corrosion resistance and high temperature resistance of an insulating material, improve the mechanical property of the insulating material, increase the transparency and improve the fireproof performance, so that the corrosion resistance, the fireproof performance and the high temperature resistance of the insulating material are greatly improved.
Description
Technical Field
The invention relates to the field of low-smoke halogen-free material production, in particular to a B1-grade low-smoke halogen-free material insulating material and a preparation method thereof.
Background
The low-smoke halogen-free electric wire sheath is composed of thermoplastic or thermosetting materials which are low in smoke discharge amount when heated and do not contain halogen, most of network wire coating layers are composed of polyethylene, polyvinyl chloride or thermoplastic polyurethane, when the electric wire sheath is ignited, chlorine-containing plastic can release toxic hydrogen chloride, when water meets the requirement of generating hydrochloric acid, the low-smoke halogen-free materials can not release hydrogen halide or other acids when the electric wire sheath is ignited, the low-smoke halogen-free materials can reduce toxic and corrosive gases generated when the electric wire sheath is combusted, and when the electric wire sheath is in an environment with poor ventilation such as an airplane, a train carriage or a ship, the low-smoke halogen-free materials can be used frequently.
The existing low-smoke halogen-free insulating material is unstable in raw material composition, poor in compression resistance and flame retardant effect, most of the existing production processes of the low-smoke halogen-free insulating material are mixing, feeding, extruding, hot cutting and then cooling, but the production process only produces the insulating material in a molding mode, and the molecular structure of the insulating material cannot be enhanced.
Disclosure of Invention
The invention aims to: in order to solve the problems that the existing low-smoke halogen-free insulating material is unstable in raw material composition, poor in compression resistance and flame retardant effect, most of the existing production processes of the low-smoke halogen-free insulating material are material mixing, feeding, extruding, hot cutting and cooling, but the production process only produces insulating materials in a molding mode and cannot strengthen the molecular structure of the insulating materials, the B1-level low-smoke halogen-free insulating material and the preparation method thereof are provided.
In order to achieve the purpose, the invention provides the following technical scheme: a B1-grade low-smoke halogen-free insulating material and a preparation method thereof comprise the following components in parts by mass: 20-30 parts by mass of EVA; 15-20 parts of glass fiber powder; 10-15 parts of ceramic micro powder; 10-15 parts by mass of magnesium hydroxide; 10-15 parts by mass of aluminum hydroxide; 10-20 parts by mass of a silane coupling agent; 5-10 parts of a slipping agent; 5-10 parts by mass of an antioxidant; 5-10 parts of hydrotalcite.
Preferably, the EVA contains 20-28% of vinyl acetate, the silane coupling agent is one of vinyl triethoxysilane, vinyl trimethoxysilane and vinyl tri (beta-methoxyethoxy) silane, the slip agent is polydimethylsiloxane, polyphenylmethylsiloxane and polyether modified polydimethylsiloxane, and the antioxidant is antioxidant 1010.
Preferably, the method comprises the following steps:
the method comprises the following steps: firstly, pretreating raw materials, and then putting the raw materials in a certain proportion into an internal mixer for mixing;
step two: feeding by using a double-wrist feeding mode, and then extruding the mixed material by using a single-screw extruder;
step three: carrying out hot cutting after extrusion, cutting the material into a preset size, conveying the cut material into a lengthened air-cooled vibrating screen by a conveyor in a driving way, and cooling and screening the cut material;
Step four: after screening, the finished product is driven by a conveyor to be conveyed into an electron accelerator for irradiation, after primary irradiation is finished, the conveyor is driven to weigh, and after weighing is finished, the conveyor continues to be driven for secondary irradiation;
step five: after the irradiation, the insulating particles are driven to be transported to the manual quality inspection link for inspection, and the inspection is transported to the packaging marking machine for packaging and marking after passing through, and then can be transported and stored.
Preferably, in the step one, the raw materials are pretreated, and then a certain proportion of the raw materials are put into an internal mixer for mixing, and it is necessary to pay attention to:
a: checking whether the original and auxiliary materials on the formula list are complete or not;
b: checking whether the platform scale is at a zero position or not, and whether the weighing meets the requirements or not;
c: checking whether the container and the spoon are clean;
d: the deviation of the weight control of all ingredients is within +/-2 percent, and the deviation of the weight control of 1 kilogram is within +/-1 g;
e: each weighed batch must be named and placed at a designated location;
f: all ingredients should be placed in a designated stainless steel basin;
g: when the raw materials are put into the internal mixer, the materials are required to be put in the following sequence: powder → granule → grease.
Preferably, the electron accelerator includes the irradiation room, the inside of irradiation room is provided with the partition wall, and one side of irradiation room inside installs and gets into the conveyer, one section that gets into the conveyer is connected with first connection conveyer, and the top of first connection conveyer is provided with first electron accelerator main part, the second is installed to the one end of first connection conveyer and is connected the conveyer, and is provided with the weigher between first connection conveyer and the second connection conveyer, second electron accelerator main part is installed to the top of conveyer is connected to the second, and the output conveyer is installed to the one end of conveyer is connected to the second.
Preferably, the one end that the outside of irradiator room is located the partition wall is provided with first business turn over door, and the quantity of first business turn over door is two sets of, the other end that the outside of irradiator room is located the partition wall is provided with the second business turn over door, and the quantity of second business turn over door is two sets of.
Preferably, get into the conveyer and connect to run through the irradiation room and extend to its inside with the output conveyer, the top of first connection conveyer and the second connection conveyer connects and is provided with the gag lever post, and one side of gag lever post installs the cylinder, the gag lever post is located the output of cylinder, and gag lever post and first connection conveyer and second connection conveyer swing joint.
Preferably, after irradiation in step five, insulating grain is driven to transport to artifical quality control link and is examined, and the inspection is transported to packing marking machine after through and is gone up packing and mark, then can transport and the storage includes:
a: packing the finished product into a packaging bag according to the standard weight;
b: packing the finished product into a packaging bag according to the standard weight;
c: sealing by using a sealing machine and reserving a small opening;
d: the packaging bag is properly vacuumized by using a vacuum pump;
e: sealing by using a bundling machine and attaching a certificate;
f: and neatly stacking the finished products on a tray.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, by adding 15-20 parts by mass of glass fiber powder and 10-15 parts by mass of ceramic micro powder into the raw materials, the glass fiber powder is used as a filling material to improve the hardness and compressive strength of a product, and reduce the shrinkage rate, the width of grinding marks, the abrasion and the production cost of the product, and the ceramic micro powder can improve the adsorptivity, weather resistance, durability, scrub resistance, corrosion resistance and high temperature resistance of an insulating material, improve the mechanical property of the insulating material, increase the transparency and improve the fireproof performance, so that the corrosion resistance, the fireproof performance and the high temperature resistance of the insulating material are greatly improved.
2. The invention adopts the following four steps: the finished product obtained after screening is driven by a conveyor to be conveyed into an electron accelerator for irradiation, after primary irradiation is finished, the conveyor is driven to weigh, after weighing is finished, the conveyor continues to drive the finished product to carry out secondary irradiation, an electric field formed by high voltage of 500 ten thousand volts is realized in an under-beam irradiation system in the electron accelerator, electrons in the electric field run at the speed of light, the electrons bombard an insulating material through a titanium window, the insulating material is subjected to change of turning over the sky and covering the ground, the linear molecular structure is disorderly and recombined to form a reticular molecular structure, so that the insulating material is firmer and more stable than before, the safety performance of the insulating material is greatly improved, and the service life of the insulating material is prolonged.
Drawings
FIG. 1 is a schematic diagram of an electron accelerator according to the present invention.
In the figure: 1. an irradiation chamber; 2. a partition wall; 3. a first access door; 4. a second access door; 5. entering a conveyer; 6. a first connecting conveyor; 7. a first electron accelerator body; 8. a second connecting conveyor; 9. a weighing device; 10. a second electron accelerator body; 11. an output conveyor; 12. a limiting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention based on its overall structure.
Example 1
Referring to fig. 1, a B1-grade low-smoke halogen-free insulating material and a preparation method thereof include the following components by mass: 20-30 parts by mass of EVA; 15-20 parts of glass fiber powder; 10-15 parts of ceramic micro powder; 10-15 parts by mass of magnesium hydroxide; 10-15 parts by mass of aluminum hydroxide; 10-20 parts by mass of a silane coupling agent; 5-10 parts of a slipping agent; 5-10 parts by mass of an antioxidant; 5-10 parts of hydrotalcite.
The method comprises the following steps:
the method comprises the following steps: firstly, pretreating raw materials, and then putting the raw materials in a certain proportion into an internal mixer for mixing;
step two: feeding by using a double-wrist feeding mode, and then extruding the mixed material by using a single-screw extruder;
step three: carrying out hot cutting after extrusion, cutting the material into a preset size, conveying the cut material into a lengthened air-cooled vibrating screen by a conveyor in a driving way, and cooling and screening the cut material;
step four: after screening, the finished product is driven by a conveyor to be conveyed into an electron accelerator for irradiation, after primary irradiation is finished, the conveyor is driven to weigh, and after weighing is finished, the conveyor continues to be driven for secondary irradiation;
step five: after the irradiation, the insulating particles are driven to be transported to the manual quality inspection link for inspection, and the inspection is transported to the packaging marking machine for packaging and marking after passing through, and then can be transported and stored.
According to the invention, by adding 15-20 parts by mass of glass fiber powder and 10-15 parts by mass of ceramic micro powder into the raw materials, the glass fiber powder is used as a filling material to improve the hardness and compressive strength of a product, and reduce the shrinkage rate, the width of grinding marks, the abrasion and the production cost of the product, and the ceramic micro powder can improve the adsorptivity, weather resistance, durability, scrub resistance, corrosion resistance and high temperature resistance of an insulating material, improve the mechanical property of the insulating material, increase the transparency and improve the fireproof performance, so that the corrosion resistance, the fireproof performance and the high temperature resistance of the insulating material are greatly improved.
Example 2
The EVA contains 20-28% of vinyl acetate, the silane coupling agent is one of vinyl triethoxysilane, vinyl trimethoxysilane and vinyl tri (beta-methoxyethoxy) silane, the slip agent is polydimethylsiloxane, polyphenyl methylsiloxane and polyether modified polydimethylsiloxane, and the antioxidant is antioxidant 1010.
The method comprises the following steps:
the method comprises the following steps: firstly, pretreating raw materials, and then putting the raw materials in a certain proportion into an internal mixer for mixing;
step two: feeding by using a double-wrist feeding mode, and then extruding the mixed material by using a single-screw extruder;
Step three: carrying out hot cutting after extrusion, cutting the material into a preset size, conveying the cut material into a lengthened air-cooled vibrating screen by a conveyor in a driving way, and cooling and screening the cut material;
step four: after screening, the finished product is driven by a conveyor to be conveyed into an electron accelerator for irradiation, after primary irradiation is finished, the conveyor is driven to weigh, and after weighing is finished, the conveyor continues to be driven for secondary irradiation;
step five: after the irradiation, the insulating particles are driven to be transported to the manual quality inspection link for inspection, and the inspection is transported to the packaging marking machine for packaging and marking after passing through, and then can be transported and stored.
In the embodiment, when the internal mixer is started, the air compressor is started, water is drained before work every time, the main power supply of the internal mixer is turned on, the temperature rise alarm knob is placed at the 'on' position, the temperature is set at 150 ℃, the panel is checked to be in accordance with requirements, the internal mixer is manually operated, whether the knob is in the manual gear position is checked, the knob of the mixing chamber is in the 'back' position, the upper top bolt knob is in the 'down' position, and the discharging signal responds that the knob is in the 'off' position.
Example 3
The method comprises the following steps:
the method comprises the following steps: firstly, pretreating raw materials, and then putting the raw materials in a certain proportion into an internal mixer for mixing;
step two: feeding by using a double-wrist feeding mode, and then extruding the mixed material by using a single-screw extruder;
step three: carrying out hot cutting after extrusion, cutting the material into a preset size, conveying the cut material into a lengthened air-cooled vibrating screen by a conveyor in a driving way, and cooling and screening the cut material;
step four: after screening, the finished product is driven by a conveyor to be conveyed into an electron accelerator for irradiation, after primary irradiation is finished, the conveyor is driven to weigh, and after weighing is finished, the conveyor continues to be driven for secondary irradiation;
step five: after the irradiation, the insulating particles are driven to be transported to the manual quality inspection link for inspection, and the inspection is transported to the packaging marking machine for packaging and marking after passing through, and then can be transported and stored.
In this embodiment, before hot cutting, whether the cutter works normally or not and whether the tightness of the blade is proper or not need to be checked.
Example 4
Firstly, pretreating raw materials in a step one, then putting the raw materials in a certain proportion into an internal mixer for mixing, and paying attention to:
A: checking whether the original and auxiliary materials on the formula list are complete or not;
b: checking whether the platform scale is at a zero position or not, and whether the weighing meets the requirements or not;
c: checking whether the container and the spoon are clean;
d: the deviation of the weight control of all ingredients is within +/-2 percent, and the deviation of the weight control of 1 kilogram is within +/-1 g;
e: each weighed batch must be named and placed at a designated location;
f: all ingredients should be placed in a designated stainless steel basin;
g: when the raw materials are put into the internal mixer, the materials are required to be put in the following sequence: powder → granule → grease.
In the embodiment, after the feeding is finished, the materials on the internal ladder of the internal mixer are swept into the internal mixer, the safety door is closed, the dust remover switch performs smoke extraction, and the materials are discharged when the display temperature on the temperature display instrument meets the process requirements.
Example 5
The electron accelerator includes irradiation chamber 1, the inside of irradiation chamber 1 is provided with partition wall 2, and 1 inside one side of irradiation chamber installs and gets into conveyer 5, one section that gets into conveyer 5 is connected with first connection conveyer 6, and the top of first connection conveyer 6 is provided with first electron accelerator main part 7, the second is installed to the one end of first connection conveyer 6 and is connected conveyer 8, and first connection conveyer 6 and second are connected and are provided with weigher 9 between the conveyer 8, second electron accelerator main part 10 is installed to the top of conveyer 8 is connected to the second, and output conveyer 11 is installed to the one end of conveyer 8 is connected to the second.
In this embodiment, through the setting step four: the finished product obtained after screening is driven by a conveyor to be conveyed into an electron accelerator for irradiation, after primary irradiation is finished, the conveyor is driven to weigh, after weighing is finished, the conveyor continues to drive the finished product to carry out secondary irradiation, an electric field formed by high voltage of 500 ten thousand volts is realized in an under-beam irradiation system in the electron accelerator, electrons in the electric field run at the speed of light, the electrons bombard an insulating material through a titanium window, the insulating material is subjected to change of turning over the sky and covering the ground, the linear molecular structure is disorderly and recombined to form a reticular molecular structure, so that the insulating material is firmer and more stable than before, the safety performance of the insulating material is greatly improved, and the service life of the insulating material is prolonged.
Example 6
One end that the outside of irradiator 1 is located partition wall 2 is provided with first business turn over door 3, and the quantity of first business turn over door 3 is two sets of, and the other end that the outside of irradiator 1 is located partition wall 2 is provided with second business turn over door 4, and the quantity of second business turn over door 4 is two sets of.
In this embodiment, first business turn over door 3 and second business turn over door 4 are closed often when unmanned business turn over, reduce the influence to other staff.
Example 7
Get into conveyer 5 and output conveyer 11 and connect and run through irradiation chamber 1 and extend to its inside, the top of first connection conveyer 6 and second connection conveyer 8 connects and is provided with gag lever post 12, and the cylinder is installed to one side of gag lever post 12, and gag lever post 12 is located the output of cylinder, and gag lever post 12 and first connection conveyer 6 and second connection conveyer 8 swing joint.
In this embodiment, the cylinder can drive the gag lever post and remove to reach the purpose of control insulating material removal orbit, avoid insulating material to take place to drop in the transportation.
Example 8
After the irradiation in step five, insulating grain is driven to transport to artifical quality testing link and is examined, and the inspection is transported to packing marking machine after through and is packed and beat the mark, then can transport and the storage includes:
a: packing the finished product into a packaging bag according to the standard weight;
b: packing the finished product into a packaging bag according to the standard weight;
c: sealing by using a sealing machine and reserving a small opening;
d: the packaging bag is properly vacuumized by using a vacuum pump;
e: sealing by using a bundling machine and attaching a certificate;
f: and neatly stacking the finished products on a tray.
In the embodiment, after production is finished, the production line needs to be stopped from front to back to ensure that the materials are completely removed, the odd materials are separately stacked and marked, the feeder is cleaned, the site is cleaned, the power supplies of all places are turned off, and the main power supply is turned off.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. A B1-grade low-smoke halogen-free insulating material is characterized by comprising the following components in parts by mass: 20-30 parts by mass of EVA; 15-20 parts of glass fiber powder; 10-15 parts of ceramic micro powder; 10-15 parts by mass of magnesium hydroxide; 10-15 parts by mass of aluminum hydroxide; 10-20 parts by mass of a silane coupling agent; 5-10 parts of a slipping agent; 5-10 parts by mass of an antioxidant; 5-10 parts of hydrotalcite.
2. The grade B1 low smoke halogen-free insulating material as claimed in claim 1, wherein: the EVA comprises 20-28% of vinyl acetate, the silane coupling agent is one of vinyl triethoxysilane, vinyl trimethoxysilane and vinyl tri (beta-methoxyethoxy) silane, the slip agent is polydimethylsiloxane, polyphenyl methylsiloxane and polyether modified polydimethylsiloxane, and the antioxidant is antioxidant 1010.
3. The B1-grade low-smoke halogen-free insulating material and the preparation method thereof according to claim 1, characterized by comprising the following steps:
the method comprises the following steps: firstly, pretreating raw materials, and then putting the raw materials in a certain proportion into an internal mixer for mixing;
step two: feeding by using a double-wrist feeding mode, and then extruding the mixed material by using a single-screw extruder;
step three: carrying out hot cutting after extrusion, cutting the material into a preset size, conveying the cut material into a lengthened air-cooled vibrating screen by a conveyor in a driving way, and cooling and screening the cut material;
step four: after screening, the finished product is driven by a conveyor to be conveyed into an electron accelerator for irradiation, after primary irradiation is finished, the conveyor is driven to weigh, and after weighing is finished, the conveyor continues to be driven for secondary irradiation;
step five: after the irradiation, the insulating particles are driven to be transported to the manual quality inspection link for inspection, and the inspection is transported to the packaging marking machine for packaging and marking after passing through, and then can be transported and stored.
4. The B1-grade low-smoke halogen-free insulating material and the preparation method thereof according to claim 3, wherein the preparation method comprises the following steps: in the first step, the raw materials are pretreated, and then the raw materials in a certain proportion are put into an internal mixer for mixing, and attention needs to be paid to:
A: checking whether the original and auxiliary materials on the formula list are complete or not;
b: checking whether the platform scale is at a zero position or not, and whether the weighing meets the requirements or not;
c: checking whether the container and the spoon are clean;
d: the deviation of the weight control of all ingredients is within +/-2 percent, and the deviation of the weight control of 1 kilogram is within +/-1 g;
e: each weighed batch must be named and placed at a designated location;
f: all ingredients should be placed in a designated stainless steel basin;
g: when the raw materials are put into the internal mixer, the materials are required to be put in the following sequence: powder → granule → grease.
5. The B1-grade low-smoke halogen-free insulating material and the preparation method thereof according to claim 3, wherein the preparation method comprises the following steps: the electron accelerator comprises an irradiation chamber (1), a partition wall (2) is arranged inside the irradiation chamber (1), an entering conveyor (5) is installed on one side inside the irradiation chamber (1), one section of the entering conveyor (5) is connected with a first connecting conveyor (6), a first electron accelerator main body (7) is arranged above the first connecting conveyor (6), one end of the first connecting conveyor (6) is provided with a second connecting conveyor (8), a weighing device (9) is arranged between the first connecting conveyor (6) and the second connecting conveyor (8), a second electron accelerator main body (10) is installed above the second connecting conveyor (8), and an output conveyor (11) is installed at one end of the second connecting conveyor (8).
6. The B1-grade low-smoke halogen-free insulating material and the preparation method thereof according to claim 5, wherein the preparation method comprises the following steps: one end that the outside of irradiation room (1) is located partition wall (2) is provided with first business turn over door (3), and the quantity of first business turn over door (3) is two sets of, the other end that the outside of irradiation room (1) is located partition wall (2) is provided with second business turn over door (4), and the quantity of second business turn over door (4) is two sets of.
7. The B1-grade low-smoke halogen-free insulating material and the preparation method thereof according to claim 5, wherein the preparation method comprises the following steps: get into conveyer (5) and output conveyer (11) and connect and run through irradiation chamber (1) and extend to its inside, the top of first connection conveyer (6) and second connection conveyer (8) connects and is provided with gag lever post (12), and one side of gag lever post (12) installs the cylinder, gag lever post (12) are located the output of cylinder, and gag lever post (12) and first connection conveyer (6) and second connection conveyer (8) swing joint.
8. The B1-grade low-smoke halogen-free insulating material and the preparation method thereof according to claim 3, wherein the preparation method comprises the following steps: after the irradiation in step five, insulating grain is driven to transport to artifical quality testing link and is examined, and the inspection is transported to packing marking machine after through and is packed and beat the mark, then can transport and store in a warehouse and include:
A: packing the finished product into a packaging bag according to the standard weight;
b: packing the finished product into a packaging bag according to the standard weight;
c: sealing by using a sealing machine and reserving a small opening;
d: the packaging bag is properly vacuumized by using a vacuum pump;
e: sealing by using a bundling machine and attaching a certificate;
f: and neatly stacking the finished products on a tray.
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| CN202010607872.XA CN111849057A (en) | 2020-06-30 | 2020-06-30 | B1-grade low-smoke halogen-free insulating material and preparation method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896721A (en) * | 2011-07-26 | 2013-01-30 | 软控股份有限公司 | Double-sided film electron irradiation apparatus and irradiation method thereof |
| CN105885199A (en) * | 2016-06-12 | 2016-08-24 | 安徽天元电缆有限公司 | Fire-proof composite flame-retardant cable material |
| CN109517256A (en) * | 2018-11-02 | 2019-03-26 | 江苏亨通电力电缆有限公司 | The manufacturing process of the B1 grades of environmentally protective wirings of high fire-retardance |
-
2020
- 2020-06-30 CN CN202010607872.XA patent/CN111849057A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896721A (en) * | 2011-07-26 | 2013-01-30 | 软控股份有限公司 | Double-sided film electron irradiation apparatus and irradiation method thereof |
| CN105885199A (en) * | 2016-06-12 | 2016-08-24 | 安徽天元电缆有限公司 | Fire-proof composite flame-retardant cable material |
| CN109517256A (en) * | 2018-11-02 | 2019-03-26 | 江苏亨通电力电缆有限公司 | The manufacturing process of the B1 grades of environmentally protective wirings of high fire-retardance |
Non-Patent Citations (1)
| Title |
|---|
| 王文广主编: "《聚合物改性原料（第1版）》", 31 March 2018, pages: 102 - 103 * |
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