CN104733173A - High-performance halogen-free flexible magnetic sheet preparation method and production line - Google Patents
High-performance halogen-free flexible magnetic sheet preparation method and production line Download PDFInfo
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- CN104733173A CN104733173A CN201410850496.1A CN201410850496A CN104733173A CN 104733173 A CN104733173 A CN 104733173A CN 201410850496 A CN201410850496 A CN 201410850496A CN 104733173 A CN104733173 A CN 104733173A
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Abstract
The invention discloses a high-performance halogen-free flexible magnetic sheet preparation method. The method is characterized by including the steps that firstly, a raw material mixture is prepared, wherein the mixture comprises the components of neodymium iron boron, a modifying agent, a pentaerythritol tetranitrate, calcium stearate, an additive, butyl rubber and an allyl polyolefin elastomer; secondly, the raw material mixture is added to a ball mill so as to be milled for 2 to 5 hours; thirdly, materials are extruded; fourthly, the extruded materials are rolled, so that a plastic-magnetic sheet is acquired; fifthly, the plastic-magnetic sheet is trimmed and shaped; sixthly, gloss oil is sprayed to the surface of the plastic-magnetic sheet; seventhly, a magnetic stripe is placed in a magnetic field of a magnetizing mechanism so as to be magnetized, so that a high-performance halogen-free flexible magnetic sheet is acquired, wherein the high-speed ball mill, an extruder, a rolling mechanism, a cutting mechanism, a polishing mechanism and the magnetizing mechanism are sequentially connected. The invention further discloses a production adopting the method.
Description
Technical field
The present invention relates to permanent magnet preparation field, be specifically related to the preparation method of the flexible magnetic sheet of a kind of high-performance halogen-free, and implement the production line of the method.
Background technology
In prior art, bonded rare earth magnet processing method many employings mold pressing, injection and expressing technique, obtained magnet is all that rigidity is inelastic, and adopt mold pressing, injection molding technique more to need the mould of a large amount of different size, and need to carry out machine work to size in the later stage, be unfavorable for the change of magnet specification, processing cost is higher.Although simultaneously rigidity magnet has higher magnetic property and certain freedom shape, the shortcoming such as automaticity not high, assembling inconvenience when there is motor application, and also the magnet being made into ultrathin (being less than 1.0mm) has certain difficulty.
Flexible bonding rare-earth magnet is a kind of new product of bonded rare earth magnet, be different from the rigid bond rare earth magnet that injection moulding and mould pressing process are produced, take rubber as binding agent, employing rubber processing is produced, do not need a large amount of mould development expenses, production efficiency high, can free bend ftracture, product size can change arbitrarily, thickness can be less than 1 millimeter, be convenient to client assembles use, meet small and special electric machine to small-sized, ultra-thin, at a high speed, the requirement of high accuracy and low noise future development, market prospects are had an optimistic view of.Flexible adhesion permanent magnet has been widely used in the fields such as household electrical appliances, automobile, office automation, is in great demand.
, there is the problems such as the unbalanced and production efficiency of performance is low, the magnetic rubber that magnetic is stronger in magnetic rubber used in the market, because magnetic is filled with too much, and makes that magnetic rubber is ageing-resistant wear-resistingly to be reduced greatly; Ageing-resistant wear-resisting higher magnetic rubber, because magnetic is filled with less, and makes magnetic rubber magnetic more weak.
At present, the production equipment and process of magnetic rubber, be half machinery, semi-hand operation, not yet realize automated production, production efficiency is lower, and unstable product quality, consistency are bad.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, the preparation method of the flexible magnetic sheet of a kind of high-performance halogen-free is provided, and implements the intelligent production line of the method.
The technical scheme that the present invention is adopted for achieving the above object is:
A preparation method for the flexible magnetic sheet of high-performance halogen-free, it comprises:
(1) raw materials mixture, it comprises following component: neodymium iron boron powder, modifier, tetrapentaerythritol ester, calcium stearate, additive, butyl rubber, propylene based polyolefm elastomer;
(2) high speed ball mill is set, under the protection of nitrogen argon gas atmosphere, raw mixture is added ball mill grinding 2 ~ 5 hours, carry out mixed grinding and make it form mixing cladded type particulate, until each powder granularity reaches 10 ~ 50 nanometers;
(3) extruder is set, raw mixture is placed in extruder, extrude continuously, obtain extruded stock;
(4) calendering mechanism is set, extruded stock is placed in calendering mechanism, calendering process is carried out to extruded stock, obtains moulding magnetic film;
(5) cutting mechanism is set, magnetic film will be moulded and carry out cutting edge shaping;
(6) glazing mechanism is set, the surface of moulding magnetic film sprays oil polish, make it form layer protecting film on the surface at magnetic stripe;
(7) mechanism of magnetizing is set, magnetic stripe is inserted in the magnetic field of mechanism of magnetizing and magnetize, obtain the flexible magnetic sheet of high-performance halogen-free;
Described high speed ball mill, extruder, calendering mechanism, cutting mechanism, glazing mechanism are connected successively with mechanism of magnetizing, composition tinuous production.
Described step (1) raw materials mixture, specifically comprises the steps:
(11) each component is prepared by following parts by weight:
(12) modifier will weighed in step (11), tetrapentaerythritol ester, calcium stearate, additive, butyl rubber and the mixing of propylene based polyolefm elastomer, and stir, obtain mixture;
(13) the neodymium iron boron powder in (11) is taken and the mixture obtained by step (12) is placed in banbury, at 90 ~ 100 DEG C, under blast 0.4 ~ 0.5Mpa, hydraulic pressure 0.2Mpa ~ 0.4Mpa condition, banburying 10 ~ 20min;
(14) step (13) is placed in mill through the blend of banburying, front roll temperature 45 ~ 55 DEG C, rear roll temperature 55 ~ 65 DEG C, under speed ratio 1 ~ 1.5 condition, opens refining 10 ~ 15min; Obtain raw mixture.
Described modifier is haloflex.
Described additive is polytetrafluoroethylene.
It also comprises the step arranging the automatic control equipment that is connected with mechanism of magnetizing with described high speed ball mill, extruder, calendering mechanism, cutting mechanism, glazing mechanism, and be provided with temperature sensor at extruder discharging place, calendering mechanism is provided with pressure sensor and speed probe, described automatic control equipment and temperature sensor, pressure sensor and speed probe electrically connect, composition automatic serial production line.
Described automatic control equipment is by temperature sensor, and the data of pressure sensor and speed probe feedback, control automatically to calender rotating speed and pressure.
Implement a described preparation method's high-performance halogen-free flexible magnetic slice assembly line, it comprise connect successively high speed ball mill, extruder, calendering mechanism, cutting mechanism, glazing mechanism and mechanism of magnetizing; Wherein: described high speed ball mill, be under the protection of nitrogen argon gas atmosphere, raw mixture added ball mill grinding 2 ~ 5 hours, carry out mixed grinding and make it form mixing cladded type particulate, until each powder granularity reaches 10 ~ 50 nanometers; Described extruder, is that raw mixture is placed in extruder, extrudes continuously, obtain extruded stock; Described calendering mechanism, is extruded stock is placed in calendering mechanism, carries out calendering process, obtain moulding magnetic film to extruded stock; Described cutting mechanism carries out cutting edge shaping by moulding magnetic film; Described glazing mechanism, is spray oil polish on the surface of moulding magnetic film, makes it form layer protecting film on the surface at magnetic stripe; Described mechanism of magnetizing, inserts magnetic stripe in the magnetic field of mechanism of magnetizing and magnetizes, and obtains the flexible magnetic sheet of high-performance halogen-free.
Described raw mixture, prepares each component by by following parts by weight:
Through modifier, tetrapentaerythritol ester, calcium stearate, additive, butyl rubber and the mixing of propylene based polyolefm elastomer, and stir, obtain mixture; Neodymium iron boron powder and mixture are placed in banbury, at 90 ~ 100 DEG C, under blast 0.4 ~ 0.5Mpa, hydraulic pressure 0.2Mpa ~ 0.4Mpa condition, and banburying 10 ~ 20min; Blend through banburying is placed in mill, and front roll temperature 45 ~ 55 DEG C, rear roll temperature 55 ~ 65 DEG C, under speed ratio 1 ~ 1.5 condition, opens refining 10 ~ 15min and obtains.
It also comprises an automatic control equipment be connected with mechanism of magnetizing with described high speed ball mill, extruder, calendering mechanism, cutting mechanism, glazing mechanism, and be provided with temperature sensor at extruder discharging place, calendering mechanism is provided with pressure sensor and speed probe, described automatic control equipment and temperature sensor, pressure sensor and speed probe electrically connect; Described automatic control equipment is by temperature sensor, and the data of pressure sensor and speed probe feedback, control automatically to calender rotating speed and pressure, composition automatic serial production line.
Described modifier is haloflex, and additive is polytetrafluoroethylene.
The invention has the beneficial effects as follows: preparation method provided by the invention, produced by continuous print production line, significantly can improve the uniformity of product quality, the consistency of performance, adopt the propylene-based elastomeric improving product anti-impact force and high-temperature behavior, make this its produce mould magnetic product, possess that thickness low (can reach 0.1mm), pliability are good, tension resistance to compression, good springiness, magnetic behavior is remarkable, thickness be 1mm magnetic sheet after tested its magnetic energy product be 8 ~ 12MGOe, the hot strength of magnetic sheet is more than 3.5MPa, can tolerate the high temperature of less than 150 DEG C and not loss of excitation.
Continuous producing method of the present invention and tinuous production, automaticity is high, by transducer, accurately control the manufacturing parameter in magnetic sheet production process, greatly reduce the generation of defective products, adopt high speed ball mill, impurity without the need to producing abrading-ball carries out sorting, and it is suitable for industrialization and produces, in process of production, operating mode easily controls, and constant product quality, consistency of performance are good; Owing to have employed pretreatment of raw material and precise finiss process two step, reduce the needs of preparation process for equipment and place, and preparation speed is fast, efficiency is high, product stability good.
Embodiment
Embodiment 1: the preparation method of the flexible magnetic sheet of the high-performance halogen-free that the present embodiment provides, it comprises:
(1) raw materials mixture, it comprises following component: neodymium iron boron powder, modifier, tetrapentaerythritol ester, calcium stearate, additive, butyl rubber, propylene based polyolefm elastomer;
(2) high speed ball mill is set, under the protection of nitrogen argon gas atmosphere, raw mixture is added ball mill grinding 2 ~ 5 hours, carry out mixed grinding and make it form mixing cladded type particulate, until each powder granularity reaches 10 ~ 50 nanometers;
(3) extruder is set, raw mixture is placed in extruder, extrude continuously, obtain extruded stock;
(4) calendering mechanism is set, extruded stock is placed in calendering mechanism, calendering process is carried out to extruded stock, obtains moulding magnetic film;
(5) cutting mechanism is set, magnetic film will be moulded and carry out cutting edge shaping;
(6) glazing mechanism is set, the surface of moulding magnetic film sprays oil polish, make it form layer protecting film on the surface at magnetic stripe;
(7) mechanism of magnetizing is set, magnetic stripe is inserted in the magnetic field of mechanism of magnetizing and magnetize, obtain the flexible magnetic sheet of high-performance halogen-free;
Described high speed ball mill, extruder, calendering mechanism, cutting mechanism, glazing mechanism are connected successively with mechanism of magnetizing, composition tinuous production.
Described step (1) raw materials mixture, specifically comprises the steps:
(11) each component is prepared by following parts by weight:
(12) modifier will weighed in step (11), tetrapentaerythritol ester, calcium stearate, additive, butyl rubber and the mixing of propylene based polyolefm elastomer, and stir, obtain mixture;
(13) the neodymium iron boron powder in (11) is taken and the mixture obtained by step (12) is placed in banbury, at 90 ~ 100 DEG C, under blast 0.4 ~ 0.5Mpa, hydraulic pressure 0.2Mpa ~ 0.4Mpa condition, banburying 10 ~ 20min;
(14) step (13) is placed in mill through the blend of banburying, front roll temperature 45 ~ 55 DEG C, rear roll temperature 55 ~ 65 DEG C, under speed ratio 1 ~ 1.5 condition, opens refining 10 ~ 15min; Obtain raw mixture.
Described modifier is haloflex.
Described additive is polytetrafluoroethylene.
It also comprises the step arranging the automatic control equipment that is connected with mechanism of magnetizing with described high speed ball mill, extruder, calendering mechanism, cutting mechanism, glazing mechanism, and be provided with temperature sensor at extruder discharging place, calendering mechanism is provided with pressure sensor and speed probe, described automatic control equipment and temperature sensor, pressure sensor and speed probe electrically connect, composition automatic serial production line.
Described automatic control equipment is by temperature sensor, and the data of pressure sensor and speed probe feedback, control automatically to calender rotating speed and pressure.
Implement an above-mentioned preparation method's high-performance halogen-free flexible magnetic slice assembly line, it comprise connect successively high speed ball mill, extruder, calendering mechanism, cutting mechanism, glazing mechanism and mechanism of magnetizing; Wherein: described high speed ball mill, be under the protection of nitrogen argon gas atmosphere, raw mixture added ball mill grinding 2 ~ 5 hours, carry out mixed grinding and make it form mixing cladded type particulate, until each powder granularity reaches 10 ~ 50 nanometers; Described extruder, is that raw mixture is placed in extruder, extrudes continuously, obtain extruded stock; Described calendering mechanism, is extruded stock is placed in calendering mechanism, carries out calendering process, obtain moulding magnetic film to extruded stock; Cutting mechanism, will mould magnetic film and carry out cutting edge shaping; Described glazing mechanism, is spray oil polish on the surface of moulding magnetic film, makes it form layer protecting film on the surface at magnetic stripe; Described mechanism of magnetizing, inserts magnetic stripe in the magnetic field of mechanism of magnetizing and magnetizes, and obtains the flexible magnetic sheet of high-performance halogen-free.
Described raw mixture, prepares each component by by following parts by weight:
Through modifier, tetrapentaerythritol ester, calcium stearate, additive, butyl rubber and the mixing of propylene based polyolefm elastomer, and stir, obtain mixture; Neodymium iron boron powder and mixture are placed in banbury, at 90 ~ 100 DEG C, under blast 0.4 ~ 0.5Mpa, hydraulic pressure 0.2Mpa ~ 0.4Mpa condition, and banburying 10 ~ 20min; Blend through banburying is placed in mill, and front roll temperature 45 ~ 55 DEG C, rear roll temperature 55 ~ 65 DEG C, under speed ratio 1 ~ 1.5 condition, opens refining 10 ~ 15min and obtains.
It also comprises an automatic control equipment be connected with mechanism of magnetizing with described high speed ball mill, extruder, calendering mechanism, cutting mechanism, glazing mechanism, and be provided with temperature sensor at extruder discharging place, calendering mechanism is provided with pressure sensor and speed probe, described automatic control equipment and temperature sensor, pressure sensor and speed probe electrically connect; Described automatic control equipment is by temperature sensor, and the data of pressure sensor and speed probe feedback, control automatically to calender rotating speed and pressure, composition automatic serial production line.
Described modifier is haloflex, and additive is polytetrafluoroethylene.
Embodiment 2: the preparation method of the flexible magnetic sheet of high-performance halogen-free that the present embodiment provides, and implement the production line of the method, its step and composition substantially identical with step 1, its difference is:
A preparation method for the flexible magnetic sheet of high-performance halogen-free, it comprises:
(1) raw materials mixture, it comprises following component: neodymium iron boron powder, haloflex, tetrapentaerythritol ester, calcium stearate, polytetrafluoroethylene, butyl rubber, propylene based polyolefm elastomer;
(2) high speed ball mill is set, under the protection of nitrogen argon gas atmosphere, raw mixture is added ball mill grinding 2 hours, carry out mixed grinding and make it form mixing cladded type particulate, until each powder granularity reaches 10 nanometers;
(3) extruder is set, raw mixture is placed in extruder, extrude continuously, obtain extruded stock;
(4) calendering mechanism is set, extruded stock is placed in calendering mechanism, calendering process is carried out to extruded stock, obtains moulding magnetic film;
(5) cutting mechanism is set, magnetic film will be moulded and carry out cutting edge shaping;
(6) glazing mechanism is set, the surface of moulding magnetic film sprays oil polish, make it form layer protecting film on the surface at magnetic stripe;
(7) mechanism of magnetizing is set, magnetic stripe is inserted in the magnetic field of mechanism of magnetizing and magnetize, obtain the flexible magnetic sheet of high-performance halogen-free;
Described step (1) raw materials mixture, specifically comprises the steps:
(11) each component is prepared by following parts by weight:
(12) haloflex will weighed in step (11), tetrapentaerythritol ester, calcium stearate, polytetrafluoroethylene, butyl rubber and the mixing of propylene based polyolefm elastomer, and stir, obtain mixture;
(13) the neodymium iron boron powder in (11) is taken and the mixture obtained by step (12) is placed in banbury, at 90 DEG C, under blast 0.4Mpa, hydraulic pressure 0.2Mpaa condition, banburying 10min;
(14) step (13) is placed in mill through the blend of banburying, at preliminary roller temperature 45 C, rear roll temperature 55 DEG C, under speed ratio 1 condition, opens refining 10min; Obtain raw mixture.
Implement a described preparation method's high-performance halogen-free flexible magnetic slice assembly line, it comprises the high speed ball mill connected successively, extruder, calendering mechanism, cutting mechanism, glazing mechanism and mechanism of magnetizing; Wherein: described high speed ball mill, under the protection of nitrogen argon gas atmosphere, raw mixture is added ball mill grinding 2 hours, carry out mixed grinding and make it form mixing cladded type particulate, until each powder granularity reaches 10 nanometers; Described extruder, is placed in extruder by raw mixture, extrudes continuously, obtains extruded stock; Described calendering mechanism, is placed in calendering mechanism, carries out calendering process, obtain moulding magnetic film to extruded stock by extruded stock; Described cutting mechanism, will mould magnetic film and carry out cutting edge shaping; Described glazing mechanism, the surface of moulding magnetic film sprays oil polish, makes it form layer protecting film on the surface at magnetic stripe; Described mechanism of magnetizing, inserts magnetic stripe in the magnetic field of mechanism of magnetizing and magnetizes, and obtains the flexible magnetic sheet of high-performance halogen-free.
Described raw mixture, prepares each component by by following parts by weight:
Through haloflex, tetrapentaerythritol ester, calcium stearate, polytetrafluoroethylene, butyl rubber and the mixing of propylene based polyolefm elastomer, and stir, obtain mixture; Neodymium iron boron powder and mixture are placed in banbury, at 90 DEG C, under blast 0.4Mpa, hydraulic pressure 0.2Mpa condition, and banburying 10min; Blend through banburying is placed in mill, and front roll temperature 45 ~ 55 DEG C, rear roll temperature 55 DEG C, under speed ratio 1 condition, opens refining 10min and obtains.
Embodiment 3: the preparation method of the flexible magnetic sheet of high-performance halogen-free that the present embodiment provides, and implement the production line of the method, its step and composition substantially identical with step 1,2, its difference is:
A preparation method for the flexible magnetic sheet of high-performance halogen-free, it comprises:
(1) raw materials mixture, it comprises following component: neodymium iron boron powder, haloflex, tetrapentaerythritol ester, calcium stearate, polytetrafluoroethylene, butyl rubber, propylene based polyolefm elastomer;
(2) high speed ball mill is set, under the protection of nitrogen argon gas atmosphere, raw mixture is added ball mill grinding 5 hours, carry out mixed grinding and make it form mixing cladded type particulate, until each powder granularity reaches 50 nanometers;
(3) extruder is set, raw mixture is placed in extruder, extrude continuously, obtain extruded stock;
(4) calendering mechanism is set, extruded stock is placed in calendering mechanism, calendering process is carried out to extruded stock, obtains moulding magnetic film;
(5) cutting mechanism is set, magnetic film will be moulded and carry out cutting edge shaping;
(6) glazing mechanism is set, the surface of moulding magnetic film sprays oil polish, make it form layer protecting film on the surface at magnetic stripe;
(7) mechanism of magnetizing is set, magnetic stripe is inserted in the magnetic field of mechanism of magnetizing and magnetize, obtain the flexible magnetic sheet of high-performance halogen-free.
Described step (1) raw materials mixture, specifically comprises the steps:
(11) each component is prepared by following parts by weight:
(12) haloflex will weighed in step (11), tetrapentaerythritol ester, calcium stearate, polytetrafluoroethylene, butyl rubber and the mixing of propylene based polyolefm elastomer, and stir, obtain mixture;
(13) the neodymium iron boron powder in (11) is taken and the mixture obtained by step (12) is placed in banbury, at 100 DEG C, under blast 0.5Mpa, hydraulic pressure 0.4Mpa condition, banburying 20min;
(14) step (13) is placed in mill through the blend of banburying, front roll temperature 55 DEG C, rear roll temperature 65 DEG C, under speed ratio 1.5 condition, opens refining 15min; Obtain raw mixture.
A kind of high-performance halogen-free flexible magnetic slice assembly line implementing described preparation method; described high speed ball mill, under the protection of nitrogen argon gas atmosphere, adds ball mill grinding 5 hours by raw mixture; carrying out mixed grinding makes it form mixing cladded type particulate, until each powder granularity reaches 50 nanometers.
Described raw mixture, prepares each component by by following parts by weight:
Through haloflex, tetrapentaerythritol ester, calcium stearate, polytetrafluoroethylene, butyl rubber and the mixing of propylene based polyolefm elastomer, and stir, obtain mixture; Neodymium iron boron powder and mixture are placed in banbury, at 100 DEG C, under blast 0.5Mpa, hydraulic pressure 0.4Mpa condition, and banburying 20min; Blend through banburying is placed in mill, and front roll temperature 55 DEG C, rear roll temperature 65 DEG C, under speed ratio 1.5 condition, opens refining 15min and obtains.
Embodiment 4: the preparation method of the flexible magnetic sheet of high-performance halogen-free that the present embodiment provides, and implement the production line of the method, its step and composition and step 1,2,3 substantially identical, its difference is:
A preparation method for the flexible magnetic sheet of high-performance halogen-free, it comprises:
(1) raw materials mixture, it comprises following component: neodymium iron boron powder, haloflex, tetrapentaerythritol ester, calcium stearate, polytetrafluoroethylene, butyl rubber, propylene based polyolefm elastomer;
(2) high speed ball mill is set, under the protection of nitrogen argon gas atmosphere, raw mixture is added ball mill grinding 4 hours, carry out mixed grinding and make it form mixing cladded type particulate, until each powder granularity reaches 30 nanometers.
Described step (1) raw materials mixture, specifically comprises the steps:
(11) each component is prepared by following parts by weight:
(12) haloflex will weighed in step (11), tetrapentaerythritol ester, calcium stearate, polytetrafluoroethylene, butyl rubber and the mixing of propylene based polyolefm elastomer, and stir, obtain mixture;
(13) the neodymium iron boron powder in (11) is taken and the mixture obtained by step (12) is placed in banbury, at 95 DEG C, under blast 0.45Mpa, hydraulic pressure 0.3Mpa condition, banburying 15min;
(14) step (13) is placed in mill through the blend of banburying, at preliminary roller temperature 50 C, rear roll temperature 60 DEG C, under speed ratio 1.2 condition, opens refining 13min; Obtain raw mixture.
Implement a described preparation method's high-performance halogen-free flexible magnetic slice assembly line, it comprises the high speed ball mill connected successively, extruder, calendering mechanism, cutting mechanism, glazing mechanism and mechanism of magnetizing; Wherein: high speed ball mill is set, under the protection of nitrogen argon gas atmosphere, raw mixture is added ball mill grinding 4 hours, carry out mixed grinding and make it form mixing cladded type particulate, until each powder granularity reaches 30 nanometers.
Described raw mixture, prepares each component by by following parts by weight:
Through haloflex, tetrapentaerythritol ester, calcium stearate, polytetrafluoroethylene, butyl rubber and the mixing of propylene based polyolefm elastomer, and stir, obtain mixture; Neodymium iron boron powder and mixture are placed in banbury, at 95 DEG C, under blast 0.45Mpa, hydraulic pressure 0.3Mpa condition, and banburying 15min; Blend through banburying is placed in mill, and at preliminary roller temperature 50 C, rear roll temperature 60 DEG C, under speed ratio 1.2 condition, opens refining 13min and obtains.
The each component of the present invention and process conditions, to adopt in above-mentioned number range other numerical value, all can realize technique effect of the present invention, not list one by one at this.
But the foregoing is only better possible embodiments of the present invention, and be not used to limit to the scope of the claims of the present invention, therefore the equivalent structure change that all utilizations description of the present invention is done, be all included in protection scope of the present invention.
Claims (10)
1. a preparation method for the flexible magnetic sheet of high-performance halogen-free, it is characterized in that, it comprises:
(1) raw materials mixture, it comprises following component: neodymium iron boron powder, modifier, tetrapentaerythritol ester, calcium stearate, additive, butyl rubber, propylene based polyolefm elastomer;
(2) high speed ball mill is set, under the protection of nitrogen argon gas atmosphere, raw mixture is added ball mill grinding 2 ~ 5 hours, carry out mixed grinding and make it form mixing cladded type particulate, until each powder granularity reaches 10 ~ 50 nanometers;
(3) extruder is set, raw mixture is placed in extruder, extrude continuously, obtain extruded stock;
(4) calendering mechanism is set, extruded stock is placed in calendering mechanism, calendering process is carried out to extruded stock, obtains moulding magnetic film;
(5) cutting mechanism is set, magnetic film will be moulded and carry out cutting edge shaping;
(6) glazing mechanism is set, the surface of moulding magnetic film sprays oil polish, make it form layer protecting film on the surface at magnetic stripe;
(7) mechanism of magnetizing is set, magnetic stripe is inserted in the magnetic field of mechanism of magnetizing and magnetize, obtain the flexible magnetic sheet of high-performance halogen-free;
Described high speed ball mill, extruder, calendering mechanism, cutting mechanism, glazing mechanism are connected successively with mechanism of magnetizing, composition tinuous production.
2. the preparation method of the flexible magnetic sheet of high-performance halogen-free according to claim 1, it is characterized in that, described step (1) raw materials mixture, specifically comprises the steps:
(11) each component is prepared by following parts by weight:
(12) modifier will weighed in step (11), tetrapentaerythritol ester, calcium stearate, additive, butyl rubber and the mixing of propylene based polyolefm elastomer, and stir, obtain mixture;
(13) the neodymium iron boron powder in (11) is taken and the mixture obtained by step (12) is placed in banbury, at 90 ~ 100 DEG C, under blast 0.4 ~ 0.5Mpa, hydraulic pressure 0.2Mpa ~ 0.4Mpa condition, banburying 10 ~ 20min;
(14) step (13) is placed in mill through the blend of banburying, front roll temperature 45 ~ 55 DEG C, rear roll temperature 55 ~ 65 DEG C, under speed ratio 1 ~ 1.5 condition, opens refining 10 ~ 15min; Obtain raw mixture.
3. the preparation method of the flexible magnetic sheet of high-performance halogen-free according to claim 1, it is characterized in that, described modifier is haloflex.
4. the preparation method of the flexible magnetic sheet of high-performance halogen-free according to claim 1, it is characterized in that, described additive is polytetrafluoroethylene.
5. the preparation method of the flexible magnetic sheet of high-performance halogen-free according to claim 1, it is characterized in that, it also comprises and arranges an automatic control equipment be connected with mechanism of magnetizing with described high speed ball mill, extruder, calendering mechanism, cutting mechanism, glazing mechanism, and be provided with temperature sensor at extruder discharging place, calendering mechanism is provided with pressure sensor and speed probe, described automatic control equipment and temperature sensor, pressure sensor and speed probe electrically connect, composition automatic serial production line.
6. the preparation method of the flexible magnetic sheet of high-performance halogen-free according to claim 5, is characterized in that, described automatic control equipment is by temperature sensor, and the data of pressure sensor and speed probe feedback, control automatically to calender rotating speed and pressure.
7. implement the claims the high-performance halogen-free flexible magnetic slice assembly line of preparation method described in 1 ~ 6, it is characterized in that, it comprise connect successively high speed ball mill, extruder, calendering mechanism, cutting mechanism, glazing mechanism and mechanism of magnetizing; Wherein: described high speed ball mill is under the protection of nitrogen argon gas atmosphere, raw mixture is added ball mill grinding 2 ~ 5 hours, carrying out mixed grinding makes it form mixing cladded type particulate, until each powder granularity reaches 10 ~ 50 nanometers; Described extruder, is that raw mixture is placed in extruder, extrudes continuously, obtain extruded stock; Described calendering mechanism, is extruded stock is placed in calendering mechanism, carries out calendering process, obtain moulding magnetic film to extruded stock; Described cutting mechanism carries out cutting edge shaping by moulding magnetic film; Described glazing mechanism, the surface of moulding magnetic film sprays oil polish, makes it form layer protecting film on the surface at magnetic stripe; Described mechanism of magnetizing, inserts magnetic stripe in the magnetic field of mechanism of magnetizing and magnetizes, and obtains the flexible magnetic sheet of high-performance halogen-free.
8. high-performance halogen-free flexible magnetic slice assembly line according to claim 7, is characterized in that described raw mixture prepares each component by by following parts by weight:
Through modifier, tetrapentaerythritol ester, calcium stearate, additive, butyl rubber and the mixing of propylene based polyolefm elastomer, and stir, obtain mixture; Neodymium iron boron powder and mixture are placed in banbury, at 90 ~ 100 DEG C, under blast 0.4 ~ 0.5Mpa, hydraulic pressure 0.2Mpa ~ 0.4Mpa condition, and banburying 10 ~ 20min; Blend through banburying is placed in mill, and front roll temperature 45 ~ 55 DEG C, rear roll temperature 55 ~ 65 DEG C, under speed ratio 1 ~ 1.5 condition, opens refining 10 ~ 15min and obtains.
9. high-performance halogen-free flexible magnetic slice assembly line according to claim 7, it is characterized in that, it also comprises an automatic control equipment be connected with mechanism of magnetizing with described high speed ball mill, extruder, calendering mechanism, cutting mechanism, glazing mechanism, and be provided with temperature sensor at extruder discharging place, calendering mechanism is provided with pressure sensor and speed probe, described automatic control equipment and temperature sensor, pressure sensor and speed probe electrically connect; Described automatic control equipment is by temperature sensor, and the data of pressure sensor and speed probe feedback, control automatically to calender rotating speed and pressure, composition automatic serial production line.
10. high-performance halogen-free flexible magnetic slice assembly line according to claim 8, is characterized in that, described modifier is haloflex, and additive is polytetrafluoroethylene.
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| CN201410850496.1A CN104733173A (en) | 2014-12-30 | 2014-12-30 | High-performance halogen-free flexible magnetic sheet preparation method and production line |
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| CN201410850496.1A CN104733173A (en) | 2014-12-30 | 2014-12-30 | High-performance halogen-free flexible magnetic sheet preparation method and production line |
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| CN201410850496.1A Pending CN104733173A (en) | 2014-12-30 | 2014-12-30 | High-performance halogen-free flexible magnetic sheet preparation method and production line |
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