CN106003558B - A kind of production technology of high intensity crack resistence speed change inductive signal component - Google Patents

A kind of production technology of high intensity crack resistence speed change inductive signal component Download PDF

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CN106003558B
CN106003558B CN201610321329.7A CN201610321329A CN106003558B CN 106003558 B CN106003558 B CN 106003558B CN 201610321329 A CN201610321329 A CN 201610321329A CN 106003558 B CN106003558 B CN 106003558B
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magnet ring
temperature
speed change
drying
signal component
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CN106003558A (en
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吴博
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Langxi Yabo Magneto Electricity Technology Co Ltd
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Langxi Yabo Magneto Electricity Technology Co Ltd
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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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14008—Inserting articles into the mould
    • 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
    • B29B11/00—Making preforms
    • B29B11/06—Making preforms by moulding the material
    • B29B11/08—Injection moulding
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/14—Peroxides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/54—Silicon-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
    • C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/0273—Imparting anisotropy
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2265—Oxides; Hydroxides of metals of iron

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Hard Magnetic Materials (AREA)

Abstract

The invention discloses a kind of production technologies of high intensity crack resistence speed change inductive signal component, include the following steps：1) magnet ring starting components and content；2) it is sieved；3) mixed once stirs；4) it dries；5) primary to squeeze out；6) primary fragmentation；7) secondary mixing；8) secondary extrusion；9) second-time breakage；10) magnet ring injection molding；11) it dries；12) it demagnetizes and magnetizes；13) integrated injection molding；The cooperation tight ness rating of the speed change inductive signal component of production technology production and fitted shaft, firmness are high through the invention, not easy to crack, and cooperation is with modulability, flexibility, and the cost produced is significantly relatively low.

Description

A kind of production technology of high intensity crack resistence speed change inductive signal component
Technical field
The present invention relates to a kind of speed change inductive signal components suitable for stepping electric vehicle or electric vehicle field, especially It is related to a kind of production technology of high intensity crack resistence speed change inductive signal component.
Background technology
Speed change inductive signal component, which is generally used in, realizes accurate speed change on stepping electric vehicle or electric vehicle Function, with replace it is traditional using swept resistance or change electric current and realize the purpose of speed change, by long-term exploration, according to It is exactly the speed change sense with stronger inductive signal ability using complete magnetic materials production that production method, which produces more, at present Induction signal component, but the high speed rotation centrifugal force that this kind of complete magnetic material generates increases, and magnet ring can be caused to rupture, seriously Its service life is influenced, and complete magnetism leads to the added cost of production, and existing speed change inductive signal component Due to its structure existing defects, because fitted shaft can have the phenomenon that expanding with heat and contract with cold in the process of running, therefore its gap can exist Perhaps error, and existing structure causes it to be that fitted shaft cooperation loosely or because of tension cracks, falls off, and cannot be adjusted flexibly and deposit Above-mentioned gap error, there are more serious security risks for such fault of construction.
Invention content
In view of the above problems, the present invention is intended to provide a kind of high intensity crack resistence speed change inductive signal component Production technology, it is high according to the speed change inductive signal component and the cooperation tight ness rating of fitted shaft, firmness of production technology production, Not easy to crack, cooperation is with modulability, flexibility, and the cost produced is significantly relatively low.
To achieve the goals above, the technical solution adopted in the present invention is as follows：
A kind of production technology of high intensity crack resistence speed change inductive signal component, includes the following steps：
1) magnet ring starting components and content：Include strontium ferrite 87.5-90wt%, nylon successively according to weight percent 66 8-10wt%, peroxidating neodecanoic acid isopropylbenzene fat 1.2-1.5wt% and silane coupling agent 0.8-1wt%；
2) it is sieved：It proportionally weighs above-mentioned starting components and crosses 80,100,120 mesh mesh screens successively and carry out three-level sieve Choosing；
3) mixed once stirs：The raw material being sieved through step (2) sequentially enters batch mixer and carries out batch mixing, and speed of agitator is 100-150r/min；
4) it dries：Batch mixing, which enters dryer, is dried, and drying temperature is 100-120 DEG C, and the temperature in drying course is from 0 DEG C start, increases 5 DEG C of speed with per minute and gradually raise the temperature to 100-120 DEG C, and keep the temperature drying 1-1.5 hours；
5) primary to squeeze out：Batch mixing enters extruder for shaping, is squeezed out under material to molten condition, extrusion temperature 250-270 ℃；
6) primary fragmentation：Extruded molding crude product carries out primary fragmentation in crusher, by Rare-Earth Magnetic after being crushed Property material analysis spectrometer carry out first test verification；
7) secondary mixing：Enter through broken crude product particle and carries out secondary mixing, speed of agitator in batch mixer 200-250r/min；
8) secondary extrusion：Rerolling, which enters, carries out secondary extrusion molding in extruder, 250-270 DEG C of extrusion temperature；
9) second-time breakage：Semi-finished product through secondary extrusion molding carry out second-time breakage through crusher, by dilute after being crushed Native magnetic material analysis spectrometer carries out second test inspection；
10) magnet ring injection molding：Feed inlet of the semi-finished granules through molding machine through step (9) second-time breakage successively into Expect, has put the unilateral demoulding gradient for 2-3mm on mold, magnetic field orientating has been also set up in mold, after the magnetic field orientating of mold It is molded by a circle magnet ring；
11) it dries：After demoulding, drying operation is carried out to magnet ring in time, drying operation is completed in drying equipment, and is being dried Ventilation in dry equipment, drying temperature are 90-100 DEG C, and manufactured one circle of magnet ring upper surface setting is anti-to be disengaged from the groove, on the inside of lower face towards One circle rotation stop groove of upper setting；
12) it demagnetizes and magnetizes：Magnet ring after magnetic field orientating first carries out demagnetization processing, using customization magnetize collet into Row magnetizes, and reaches the magnetic pole purpose of needs；
13) integrated injection molding：By step (10) flux ring portion after mold anisotropy is orientated injection molding, it is re-used as inserts It carries out quadric injection mould plastic matrix and packs tightly part, material of the ABS resin material as plastic matrix, the two is selected to be set by centre The anti-twin fixed guide-vane being disengaged from the groove with rotation stop groove of meter.
Further improvement of the present invention is：The step (5) " primary to squeeze out " and the step (8) " secondary extrusion " In extruder feed end be arranged preheating apparatus.
Further improvement of the present invention is：The preheating apparatus is arranged above the extruder loading hopper, leads to The heating element set in crossing carries out heating heating, and temperature sensor control heating temperature is arranged, and preheating apparatus is leaked with charging It is tightly connected between bucket, and sets portable agitato in preheating apparatus.
Further improvement of the present invention is：It is logical in the inner cavity of plastic matrix when step (13) " integrated injection molding " It crosses mold injection molding one and encloses helical teeth.
The beneficial effects of the invention are as follows：Compared with prior art, incude letter according to the speed change of production technology of the present invention production The advantages of number component, is as follows：
First, plastic matrix of the present invention using ABS resin material as the speed change inductive signal component, then with Magnet ring combines, saving production cost, good physical performance, and stability is good；
Secondly：Two kinds of material-structures of the present invention：It is disengaged from the groove and the taper of magnet ring by anti-between plastic matrix and magnet ring Structure realizes, the stability and firmness that both the setting of pyramidal structure, which substantially increases, combines；
Third, can preferably be tied between fitted shaft in use to improve the speed change inductive signal component It closes, and can preferably adjust gap, prevent the generation of obscission, therefore a circle is processed in an axial direction in the inside of plastic matrix Helical teeth, the helical teeth are integrally formed with plastic matrix, therefore it can be automatically adjusted with preferable toughness with fitted shaft It expands with heat and contract with cold existing a little gap between the plastic matrix inner cavity brought and fitted shaft, ensures that it does not take off in use It falls, service life is long.
Description of the drawings
Fig. 1 is the schematic top plan view of the speed change inductive signal component produced according to production technology of the present invention.
Fig. 2 is the elevational schematic view of the speed change inductive signal component produced according to production technology of the present invention.
Fig. 3 is the stereoscopic schematic diagram of the magnet ring produced according to production technology of the present invention.
Wherein：1- plastic matrix, 2- magnet rings, 3- locking pins, 4- is anti-to be disengaged from the groove, 5- rotation stop pins, 6- rotation stop grooves, 7- helical teeth.
Specific implementation mode
In order to make those skilled in the art be better understood on technical scheme of the present invention, below in conjunction with the accompanying drawings and Embodiment is further described technical scheme of the present invention.
Embodiment one：A kind of production technology of high intensity crack resistence speed change inductive signal component,
1) magnet ring starting components and content：Include strontium ferrite 87.5wt%, nylon66 fiber successively according to weight percent 10wt%, peroxidating neodecanoic acid isopropylbenzene fat 1.2wt% and silane coupling agent 1wt%；
2) it is sieved：It proportionally weighs above-mentioned starting components and crosses 80,100,120 mesh mesh screens successively and carry out three-level sieve Choosing, it is more uniform by the raw materials particles degree of three level screen, it is more prone to batch mixing, and can be to subsequent primary extrusion, two Secondary extrusion plays booster action, improves the mixture homogeneity of particle；
3) mixed once stirs：The raw material being sieved through step (2) sequentially enters batch mixer and carries out batch mixing, and speed of agitator is 100r/min；
4) it dries：Batch mixing, which enters dryer, is dried, and drying temperature is 120 DEG C, and the temperature in drying course is opened from 0 DEG C Begin, gradually raises the temperature to 120 DEG C with the speed per minute for increasing 5 DEG C, and keep the temperature drying 1 hour；It is adopted in drying course It is dried with the mode gradually to heat up, preferable drying effect can not only be reached, save the energy, and gradually heating drying Mode will not lead to the variation of feed stock material crystal structure, ensure the original performance of raw material；
5) primary to squeeze out：Batch mixing enters extruder for shaping, is squeezed out under material to molten condition, 250 DEG C of extrusion temperature, The feed inlet of extruder is equipped with a preheating apparatus；
Preheating apparatus is arranged above the extruder loading hopper, is risen by the interior heating element set Temperature heating, and temperature sensor control heating temperature is set, it is tightly connected between preheating apparatus and loading hopper, and pre- Portable agitato is set in heating device；It is to ensure that the temperature of the mixture of drying is unlikely to fast prompt drop using pre-warmed purpose It is low, mixture feeding temperature and the temperature after drying are consistent by preheating apparatus as far as possible, can also be saved in this way Mixture enters the heating-up time of extruder in extruder, improves and squeezes out effect and efficiency；
6) primary fragmentation：Extruded molding crude product carries out primary fragmentation in crusher, by Rare-Earth Magnetic after being crushed Property material analysis spectrometer carry out first test verification；
7) secondary mixing：Enter through broken crude product particle and carries out secondary mixing, speed of agitator in batch mixer 200r/min, mixing time 2.5h；
8) secondary extrusion：Rerolling, which enters, carries out secondary extrusion molding in extruder, 270 DEG C of extrusion temperature is squeezing out The feed inlet of machine is equipped with secondary preheating apparatus, structure, the effect all same of secondary preheating apparatus and a preheating apparatus；
9) second-time breakage：Semi-finished product through secondary extrusion molding carry out second-time breakage through crusher, by dilute after being crushed Native magnetic material analysis spectrometer carries out second test inspection；
The present invention mainly by primary, second-time breakage, primary extrusion and secondary extrusion, is carried by the technique of two-stage The injection molding quality of high magnet ring 2 improves the stability of magnetic pole, the uniformity of the raw material mixing of magnet ring 2 is improved, because once squeezing Through examining the Density inhomogeneity of its crude product after going out, cause subsequent magnetism unstable, and the number of some granulated magnetic powders is not yet Equally, the processing quality of magnet ring 2 can be influenced；
10) magnet ring injection molding：Feed inlet of the semi-finished granules through molding machine through step (9) second-time breakage successively into Expect, has put the unilateral demoulding gradient for 2mm on mold, the setting of the demoulding gradient can produce the narrow under shed that is open on inner cavity Wide magnet ring 2 also sets up magnetic field orientating in mold, a circle magnet ring 2 is molded by after the magnetic field orientating of mold；
11) it dries：After demoulding, drying operation is carried out to magnet ring 2 in time, drying operation is completed in drying equipment, and Moisture is taken away in ventilation in drying equipment in time, and drying temperature is 90 DEG C, and 2 upper surface of manufactured magnet ring setting, one circle is anti-to be disengaged from the groove 4, Lower face medial surface sets up a circle rotation stop groove 6, and 2 inner cavity of magnet ring which processes is the upper narrow wide taper of under shed of opening Structure；
12) it demagnetizes and magnetizes：Magnet ring 2 after magnetic field orientating first carries out demagnetization processing, using the collet that magnetizes of customization Magnetize, reach the magnetic pole purpose of needs, the present invention by first carrying out magnetic field orientating to magnet ring 2 in a mold, determine the poles N and S extremely after, then demagnetize, magnetize as required under the guiding role of the poles N and the poles S again after demagnetization, reach preferable magnetic pole and compared with Stable magnetic purpose, number of magnetic poles of the invention are 32；
13) integrated injection molding：By 2 part of step (10) magnet ring after mold anisotropy is orientated injection molding, it is re-used as embedding Part carries out quadric injection mould plastic matrix 1 and packs tightly part, and the two passes through the anti-twin fixed guide-vane for being disengaged from the groove 4 and rotation stop groove 6 of medium design, The two is firmly combined together, to achieve the effect that whole use without being destroyed, selects ABS resin material as plastic cement The material of matrix 1, in a mold injection molding obtain plastic matrix 1, and the upper surface of plastic matrix 1 is being molded by a circle anticreep Pin 3, lower face inside are molded by upwardly a circle rotation stop pin 5, and locking pin 3 corresponds to the anti-of magnet ring 2 and is disengaged from the groove 4, and rotation stop pin 5 corresponds to magnetic The rotation stop groove 6 of ring 2, anti-to be disengaged from the groove 4 cooperation locking pin, 3 integrated injection molding in integrated injection molding, rotation stop groove 6 coordinates rotation stop 5 integrated injection molding of pin；Helical teeth 7 is enclosed by mold injection molding one in the inner cavity of plastic matrix 1.
ABS plastic feature：Intensity is good, binding force is stable, remains to keep production in the case where high speed rotation centrifugal force increases The physical stability of product, but do not have inductive signal ability.
The to sum up respective performance characteristics of two kinds of materials, the present invention propose a speed change inductive signal component, inside connection It is molded using ABS plastic matrix 1, and designs helical teeth 7 and carry out adjusting elasticity degree, can be good at playing its advantage, even if cooperation The overproof packet remained to tightly of the tolerance of axis is resistance to without falling off or bursting because of expanding with heat and contract with cold for axis extremely in fitted shaft The destruction for the centrifugal force that high speed rotation is brought, perceptual signal magnet ring 2 external then that magnetic, high-strength material makes using height.
The present invention designs 2 inner-cavity structure of magnet ring of taper, and such magnet ring 2 is secured after coordinating clamping to be molded with plastic matrix 1 Spend higher, tight ness rating higher is not easy to crack, and general object have 6 degree of freedom, respectively upper and lower, left and right, it is preceding, Below, it is of the invention it is anti-be disengaged from the groove 4 setting 4, realize the fixation in front, rear, left and right face, make it in these faces without freely Degree, cannot rotate, and the pyramidal structure designed by inner cavity of the above and below by magnet ring 2 is realized, when beaing downwards in this way, by It cannot be rotated in anti-4 clamping effect of being disengaged from the groove, since the inner cavity of magnet ring 2 is up-narrow and down-wide structure, such nothing when beaing upwards By how to beat intermediate plastic matrix 1 it does not all fall off, between the two by being realized most to the restriction of 6 degree of freedom of object Good fixed form, and the setting of rotation stop groove 6 is auxiliary rotation stop work when there is gap activity from bottom to top to plastic matrix 1 With.
The qualification rate of the high intensity crack resistence speed change inductive signal component produced through embodiment one reaches 98.6%.
Embodiment two：What is different from the first embodiment is that
1) magnet ring starting components and content：Include strontium ferrite 88wt%, nylon66 fiber successively according to weight percent 9wt%, peroxidating neodecanoic acid isopropylbenzene fat 1.4wt% and silane coupling agent 0.9wt%；
3) mixed once stirs：The raw material being sieved through step (2) sequentially enters batch mixer and carries out batch mixing, and speed of agitator is 120r/min；
4) it dries：Batch mixing, which enters dryer, is dried, and drying temperature is 110 DEG C, and the temperature in drying course is opened from 0 DEG C Begin, gradually raises the temperature to 110 DEG C with the speed per minute for increasing 5 DEG C, and keep the temperature drying 1 hour；
5) primary to squeeze out：Batch mixing enters extruder for shaping, is squeezed out under material to molten condition, 260 DEG C of extrusion temperature, The feed inlet of extruder is equipped with a preheating apparatus；
7) secondary mixing：Enter through broken crude product particle and carries out secondary mixing, speed of agitator in batch mixer 220r/min, mixing time 2h；
8) secondary extrusion：Rerolling, which enters, carries out secondary extrusion molding in extruder, 260 DEG C of extrusion temperature is squeezing out The feed inlet of machine is equipped with secondary preheating apparatus, structure, the effect all same of secondary preheating apparatus and a preheating apparatus；
10) magnet ring injection molding：Feed inlet of the semi-finished granules through molding machine through step (9) second-time breakage successively into Expect, has put the unilateral demoulding gradient for 3mm on mold, the setting of the demoulding gradient can produce the narrow under shed that is open on inner cavity Wide magnet ring 2 also sets up magnetic field orientating in mold, a circle magnet ring 2 is molded by after the magnetic field orientating of mold；
11) it dries：After demoulding, drying operation is carried out to magnet ring 2 in time, drying operation is completed in drying equipment, and Ventilation in drying equipment, takes away moisture in time, and drying temperature is 95 DEG C.
The qualification rate of the high intensity crack resistence speed change inductive signal component produced through embodiment two reaches 98.7%.
Embodiment three：What is different from the first embodiment is that
1) magnet ring starting components and content：Include strontium ferrite 90wt%, nylon66 fiber successively according to weight percent 8wt%, peroxidating neodecanoic acid isopropylbenzene fat 1.5wt% and silane coupling agent 0.8wt%；
3) mixed once stirs：The raw material being sieved through step (2) sequentially enters batch mixer and carries out batch mixing, and speed of agitator is 150r/min；
4) it dries：Batch mixing, which enters dryer, is dried, and drying temperature is 100 DEG C, and the temperature in drying course is opened from 0 DEG C Begin, gradually raises the temperature to 100 DEG C with the speed per minute for increasing 5 DEG C, and keep the temperature drying 1.5 hours；
5) primary to squeeze out：Batch mixing enters extruder for shaping, is squeezed out under material to molten condition, 270 DEG C of extrusion temperature, The feed inlet of extruder is equipped with a preheating apparatus；
7) secondary mixing：Enter through broken crude product particle and carries out secondary mixing, speed of agitator in batch mixer 220r/min, mixing time 4.8h；
8) secondary extrusion：Rerolling, which enters, carries out secondary extrusion molding in extruder, 260 DEG C of extrusion temperature is squeezing out The feed inlet of machine is equipped with secondary preheating apparatus, structure, the effect all same of secondary preheating apparatus and a preheating apparatus；
10) magnet ring injection molding：Feed inlet of the semi-finished granules through molding machine through step (9) second-time breakage successively into Expect, has put the unilateral demoulding gradient for 3mm on mold, the setting of the demoulding gradient can produce the narrow under shed that is open on inner cavity Wide magnet ring 2 also sets up magnetic field orientating in mold, a circle magnet ring 2 is molded by after the magnetic field orientating of mold；
11) it dries：After demoulding, drying operation is carried out to magnet ring 2 in time, drying operation is completed in drying equipment, and Ventilation in drying equipment, takes away moisture in time, and drying temperature is 100 DEG C.
The qualification rate of the high intensity crack resistence speed change inductive signal component produced through embodiment three reaches 98.5%.

Claims (4)

1. a kind of production technology of high intensity crack resistence speed change inductive signal component, which is characterized in that include the following steps：
1) magnet ring starting components and content：Include strontium ferrite 87.5-90wt%, nylon66 fiber successively according to weight percent 8-10wt%, peroxidating neodecanoic acid isopropylbenzene fat 1.2-1.5wt% and silane coupling agent 0.8-1wt%；
2) it is sieved：It proportionally weighs above-mentioned starting components and crosses 80,100,120 mesh mesh screens successively and carry out three level screen；
3) mixed once stirs：The raw material being sieved through step (2) sequentially enters batch mixer and carries out batch mixing, speed of agitator 100- 150r/min；
4) it dries：Batch mixing, which enters dryer, is dried, and drying temperature is 100-120 DEG C, and the temperature in drying course is opened from 0 DEG C Begin, gradually raises the temperature to 100-120 DEG C with the speed per minute for increasing 5 DEG C, and keep the temperature drying 1-1.5 hours；
5) primary to squeeze out：Batch mixing enters extruder for shaping, is squeezed out under material to molten condition, 250-270 DEG C of extrusion temperature；
6) primary fragmentation：Extruded molding crude product carries out primary fragmentation in crusher, by rare-earth magnetic material after being crushed Material analysis spectrometer carries out first test verification；
7) secondary mixing：Enter through broken crude product particle and carries out secondary mixing in batch mixer, speed of agitator 200- 250r/min；
8) secondary extrusion：Rerolling, which enters, carries out secondary extrusion molding in extruder, 250-270 DEG C of extrusion temperature；
9) second-time breakage：Semi-finished product through secondary extrusion molding carry out second-time breakage through crusher, by Rare-Earth Magnetic after being crushed Property material analysis spectrometer carry out second test inspection；
10) magnet ring injection molding：Feed inlet of the semi-finished granules through molding machine through step (9) second-time breakage is fed successively, mould The unilateral demoulding gradient for 2-3mm has been put on tool, is also set up magnetic field orientating in mold, is molded by after the magnetic field orientating of mold One circle magnet ring；
11) it dries：After demoulding, drying operation is carried out to magnet ring in time, drying operation is completed in drying equipment, and is set in drying Standby interior ventilation, drying temperature are 90-100 DEG C, and manufactured one circle of magnet ring upper surface setting is anti-to be disengaged from the groove, and is set upwardly on the inside of lower face Set a circle rotation stop groove；
12) it demagnetizes and magnetizes：Magnet ring after magnetic field orientating first carries out demagnetization processing, is filled using the collet that magnetizes of customization Magnetic reaches the magnetic pole purpose of needs；
13) integrated injection molding：By step (10) flux ring portion after mold anisotropy is orientated injection molding, it is re-used as inserts progress Quadric injection mould plastic matrix packs tightly part, selects material of the ABS resin material as plastic matrix, the two is by medium design The anti-twin fixed guide-vane being disengaged from the groove with rotation stop groove.
2. a kind of production technology of high intensity crack resistence speed change inductive signal component according to claim 1, feature It is：Pre-add is set in extruder feed end in the step (5) " primary to squeeze out " and the step (8) " secondary extrusion " Thermal.
3. a kind of production technology of high intensity crack resistence speed change inductive signal component according to claim 2, feature It is：The preheating apparatus is arranged above the extruder loading hopper, and carrying out heating by the interior heating element set adds Heat, and temperature sensor control heating temperature is set, it is tightly connected between preheating apparatus and loading hopper, and preheating Portable agitato is set in device.
4. a kind of production technology of high intensity crack resistence speed change inductive signal component according to claim 3, feature It is：Helical teeth is enclosed by mold injection molding one in the inner cavity of plastic matrix when step (13) " integrated injection molding ".
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CN109762293B (en) * 2018-12-21 2021-01-29 上海长伟锦磁工程塑料有限公司 Combined material with metallic luster, ultrahigh toughness and excellent weather resistance and preparation method thereof
CN112071546B (en) * 2020-09-01 2024-04-12 安徽省瀚海新材料股份有限公司 Processing method for producing modified NdFeB magnet by using NdFeB waste

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