CN103526252A - Method for composite ceramic treatment of rotor spinning cup - Google Patents
Method for composite ceramic treatment of rotor spinning cup Download PDFInfo
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- CN103526252A CN103526252A CN201310532716.1A CN201310532716A CN103526252A CN 103526252 A CN103526252 A CN 103526252A CN 201310532716 A CN201310532716 A CN 201310532716A CN 103526252 A CN103526252 A CN 103526252A
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Abstract
The invention discloses a method for composite ceramic treatment of a rotor spinning cup, relates to a method for treatment of the rotor spinning cup, and belongs to the technical field of rotor spinners. The method for composite ceramic treatment of the rotor spinning cup aims to solve the problem that the insulativity of the surface film layer of an existing spinning cup is poor. According to the method for composite ceramic treatment of the rotor spinning cup, the surface of the whole spinning cup is oxidized by means of direct current pulses firstly to enable an even ceramic film layer to be formed on the surface of the spinning cup through electric field diffusion and the discharging fringe effect, then an inner groove of the spinning cup is scanned by means of laser beams to achieve local reinforcement, so that the reinforced film layer on the surface sleeve side of the inner groove of the spinning cup is more compact, the hardness of the film layer is over HV1200, the insulating property index, namely the withstand voltage value is over 500V, and therefore dust stratification in a collection surface is avoided in a spinning process, and the service life of the spinning cup is prolonged by 20%. The method for composite ceramic treatment of the rotor spinning cup is suitable for surface coating of the rotor spinning cup.
Description
Technical field
The present invention relates to a kind for the treatment of process of rotor spinning revolving cup, belong to rotor spinner technical field.
Background technology
Revolving cup conjunction is the key core parts in rotor spinner, and it consists of revolving cup and bearing, and the performance index of spinning are as dry in bar, thickness joint, end breakage rate and powerful etc. mainly by the performance of revolving cup, determined.Revolving cup product in the market mainly contains aluminium alloy Buddha's warrior attendant coating revolving cup, aluminum alloy hard anodizing revolving cup and electronickelling phosphoretic steel cup three types, aluminium alloy Buddha's warrior attendant coating revolving cup is that air spinning is generally generally acknowledged in the industry spinning performance and best product of life-span, its advantage is that spinning performance is good, the collection surface life-span is long, in cotton textiles spinning available 3 to 5 years, can be with more than 1 year in regeneration cotton or chemical fibre spinning, but price is the most expensive in all revolving cups.The advantage of aluminum alloy hard anodizing revolving cup is that price is minimum in three kinds of revolving cup products, but spinning performance is general, and the collection surface life-span is minimum, in cotton textiles spinning available 1 year, and only can be with 3 months to half a year in regeneration cotton or chemical fibre spinning.The performance of electronickelling phosphoretic steel cup and price are between Buddha's warrior attendant coating and hard anodized revolving cup, but because its basic material is steel, therefore Buddha's warrior attendant coating and the hard anodized revolving cup of the weight ratio aluminum alloy material of revolving cup will weigh a lot, cause its bearing life in revolving cup assembly short, and it is many to consume electric energy.
The surface treatment rete of above-mentioned three kinds of revolving cups all can not effectively completely cut off the impact of exterior static, make the outside static by generations such as tengential belts can import in revolving cup, cause collection surface in spinning process to produce fouling phenomenon, and collection surface dust stratification will cause yarn evenness to worsen, when serious, even make yarn scrap.
Summary of the invention
The present invention is in order to solve the problem of the superficial film poor insulativity of existing revolving cup, and a kind of air spinning revolving cup composite ceramics treatment process is now provided.
A revolving cup composite ceramics treatment process, the treating method comprises following steps:
Step 1: pending revolving cup is carried out to integrated oxidation processing, detailed process is: graphite cathode and pending revolving cup are immersed in working fluid completely, and described graphite cathode is positioned at revolving cup, utilize the pulse power between graphite cathode and revolving cup, to apply the positive and negative alternation DC pulse of one-period, revolving cup integral body is oxidized, then performs step two;
Step 2: the revolving cup that above-mentioned oxide treatment is crossed carries out local strengthening processing, detailed process is: the revolving cup after step 1 oxide treatment is fixed on laser works platform, regulate the laser head of laser apparatus, laser that laser apparatus emits is incided on the scanning strip of a turning radius of described revolving cup inside groove, in laser apparatus Emission Lasers, rotate this revolving cup, make laser under the speed of 0.8mm/s to 20mm/s, on current scanning strip, being screw type path scans revolving cup, when the angle of rotation of revolving cup 1 reaches 360 °, revolving cup stops the rotation, then perform step three,
Step 3: laser Strahlungseintritt is moved on the scanning strip of the next turning radius of revolving cup, and keep the Duplication of adjacent laser scanning band between 5% to 50%, utilize the scan method of step 2 to scan revolving cup, when revolving cup inside groove all completes after scanning, obtain the revolving cup after composite ceramicsization is processed.
A kind of air spinning revolving cup composite ceramics treatment process of the present invention, first by DC pulse, the surface of revolving cup integral body is oxidized, by electric field diffusion and discharge edges effect, make revolving cup surface obtain uniform ceramic film, then by laser beam, the inside groove of revolving cup is scanned, and then play the effect of local strengthening, make the interior rooved face cover of the revolving cup side form layer after strengthening finer and close, thereby make hardness surpass HV1200, insulating property index, be that withstand voltage has surpassed 500V, both avoided collection surface in spinning process to produce dust stratification, make again extend 20% the work-ing life of revolving cup.A kind of air spinning revolving cup composite ceramics treatment process of the present invention is applicable to as air spinning revolving cup surface coating.
Accompanying drawing explanation
Fig. 1 is the schema of a kind of air spinning revolving cup composite ceramics treatment process described in embodiment one.
Fig. 2 is a kind of air spinning revolving cup composite ceramics treatment process described in embodiment one, the structural representation of the treatment unit that step 1 adopts.
Fig. 3 is the positive and negative DC pulse schematic diagram in the one-period described in embodiment four.
Embodiment
Embodiment one: see figures.1.and.2 and illustrate present embodiment, a kind of air spinning revolving cup composite ceramics treatment process described in present embodiment, the treating method comprises following steps:
Step 1: pending revolving cup 1 is carried out to integrated oxidation processing, detailed process is: graphite cathode 2 and pending revolving cup 1 are immersed in working fluid completely, and described graphite cathode 2 is positioned at revolving cup 1, utilize the pulse power 3 between graphite cathode 2 and revolving cup 1, to apply the positive and negative alternation DC pulse of one-period, revolving cup 1 integral body is oxidized, then performs step two;
Step 2: the revolving cup 1 that above-mentioned oxide treatment is crossed carries out local strengthening processing, detailed process is: the revolving cup after step 1 oxide treatment 1 is fixed on laser works platform, regulate the laser head of laser apparatus, laser that laser apparatus emits is incided on the scanning strip of a turning radius of described revolving cup 1 inside groove, in laser apparatus Emission Lasers, rotate this revolving cup 1, make laser under the speed of 0.8mm/s to 20mm/s, on current scanning strip, being screw type path scans revolving cup 1, when the angle of rotation of revolving cup 1 reaches 360 °, revolving cup 1 stops the rotation, then perform step three,
Step 3: laser Strahlungseintritt is moved on the scanning strip of the next turning radius of revolving cup 1, and keep the Duplication of adjacent laser scanning band between 5% to 50%, utilize the scan method of step 2 to scan revolving cup 1, when revolving cup 1 inside groove all completes after scanning, obtain the revolving cup 1 after composite ceramicsization is processed.
Revolving cup 1 is cleaned and can remove impurity and the ion that carry on revolving cup 1 surface, reduce corrosion.Step 1 can make revolving cup surface obtain the thick even ceramic coating of 10 μ m～60 μ m, and this coating can make more than the hardness of revolving cup reaches 400HV, more than roughness reaches Ra1.6.Revolving cup surface after composite ceramicsization is processed has higher compactness and hardness, in the relativity process with high speed yarn, shows better wear resisting property.The micropore that the setting of laser speed can make melts have time enough to fill rete inside forms fine and close zone of oxidation.
Embodiment two: present embodiment is that a kind of air spinning revolving cup composite ceramics treatment process described in embodiment one is described further, in present embodiment, before step 1, first revolving cup 1 is cleaned, concrete grammar comprises the following steps:
Step is one by one: revolving cup is cleaned in clear water to 1min to 3min, then perform step one or two;
Embodiment three: present embodiment is that a kind of air spinning revolving cup composite ceramics treatment process described in embodiment one is described further, in present embodiment, working fluid is alkalescence described in step 1, temperature is between 30 ℃ to 40 ℃.
The temperature range of maintenance work liquid, can guarantee the consistence of bulk ceramics rete of preparation.
Embodiment four: illustrate present embodiment with reference to Fig. 3, present embodiment is that a kind of air spinning revolving cup composite ceramics treatment process described in embodiment one is described further, in present embodiment, the detailed process of utilizing the pulse power 3 to apply the positive and negative alternation DC pulse of one-period between graphite cathode 2 and revolving cup 1 described in step 1 is:
At t1 constantly, a width of the pulse power 3 outputs is the direct impulse that Tz, amplitude are Vz, and in the finish time of this direct impulse, a width of the pulse power 3 outputs is the negative-going pulse that Tf, amplitude are Vf;
At t2 constantly, a width of the pulse power 3 outputs is the direct impulse that Tz, amplitude are Vz, and in the finish time of this direct impulse, a width of the pulse power 3 outputs is the negative-going pulse that Tf, amplitude are Vf;
The rest may be inferred,
At ti constantly, a width of the pulse power 3 outputs is the direct impulse that Tz, amplitude are Vz, and in the finish time of this direct impulse, a width of the pulse power 3 outputs is the negative-going pulse that Tf, amplitude are Vf;
Wherein Vz is 500V to 700V, and Vf is-and 150V is to-30V, and Vz > Vf, ti > ti-1+Tz+Tf, Tz >=Tf, Tz and Tf are 0.001s to 0.08s, i=1,2,3,4, n, n is positive integer, from t1 constantly start to the finish time of n pulse be one-period, one-period is 20min to 60min.
Embodiment five: present embodiment is that a kind of air spinning revolving cup composite ceramics treatment process described in embodiment one, two, three or four is described further, in present embodiment, in step 2 and three processes, the output rating of laser apparatus remains between 50W to 400W.
Embodiment six: present embodiment is that a kind of air spinning revolving cup composite ceramics treatment process described in embodiment four is described further, and in present embodiment, the frequency of described direct impulse and negative-going pulse is all between 20Hz to 500Hz.
Embodiment seven: present embodiment is that a kind of air spinning revolving cup composite ceramics treatment process described in embodiment one, two, three or four is described further; in present embodiment; local strengthening process to be under the environment of shielding gas, to carry out having, and described shielding gas is argon gas or nitrogen.
Embodiment eight: present embodiment is that a kind of air spinning revolving cup composite ceramics treatment process described in embodiment one, two, three or four is described further, and in present embodiment, laser apparatus is launched the energy of laser at 20j/mm
2to 300j/mm
2between.
Suitable laser energy makes the oxide compound of the laser energy thawing film surface of oxidation film layer absorption, and the strengthening degree of depth can not arrive compactness tissue place.
Embodiment nine: present embodiment is that a kind of air spinning revolving cup composite ceramics treatment process described in embodiment one, two, three or four is described further, and in present embodiment, described laser apparatus is CO
2laser apparatus or Nd:YAG laser apparatus.
Embodiment ten: present embodiment is that a kind of air spinning revolving cup composite ceramics treatment process described in embodiment one, two, three or four is described further, and in present embodiment, the material of described revolving cup 1 is aluminum or aluminum alloy material.
Embodiment 11: present embodiment is that a kind of air spinning revolving cup composite ceramics treatment process described in embodiment one, two, three or four is described further, in present embodiment, working fluid comprises: deionized water, potassium hydroxide, sodium aluminate, sodium wolframate and water glass, wherein the concentration of potassium hydroxide is 1g/L～10g/L, the concentration of water glass is 3g/L～20g/L, the concentration of sodium aluminate is 1g/L～10g/L, and the concentration of sodium wolframate is 1g/L～8g/L.
Principle of work of the present invention: carry out the surface oxidation treatment stage in revolving cup integral body, revolving cup is placed in working fluid, on load voltage between revolving cup and graphite cathode, revolving cup surface oxidized formation insulating film layer gradually under electric field action, thereupon at the electrical insulating property weakness of the insulating film layer formation plasma discharge that is broken down by high-voltage, oxide compound in discharge channel is gradated as high rigidity crystalline phase by soft crystalline phase, and the bulk ceramics rete of oxidation has porous feature, outer tissue is loose, inner compact layer; In the laser treatment stage, laser radiation energy is to revolving cup, and the porosity and looseness layer oxide compound in lasers range is melted, and under high temperature fused state, oxide compound crystalline phase is further converted to the ceramic crystalline phase of high rigidity, and the compactness of rete is enhanced simultaneously.Laser, at the cell body of the whole revolving cup of certain speed range interscan, is realized the local strengthening on revolving cup surface.
Adopt following verification experimental verification effect of the present invention:
Test one:
Revolving cup is cleaned in clear water to 3min, then put it in acetone or dehydrated alcohol, the ultrasonic cleaning 3min that is 40KHz through frequency, finally cleaning, drying in deionized water; In work tank, modulate working fluid, wherein the concentration of potassium hydroxide is 1g/L, and the concentration of water glass is 5g/L, and the concentration of sodium aluminate is 2g/L, and the concentration of sodium wolframate is 5g/L, and working fluid temperature maintains 20～30 ℃;
Working fluid cell body connects pulse power negative pole, and it is anodal that revolving cup connects the pulse power, and the set handling time is 40min, supply frequency is 200Hz, and dutycycle is 40%, forward current density 10A/dm2, negative current density is 10A/dm2, and the bulk ceramics oxidation film layer thickness of preparation is 30 μ m.Revolving cup being cleaned in deionized water to 5min, be finally placed in dehydrated alcohol, after the ultrasonic cleaning 5min that is 40KHz, is dry 8min under the condition of 30 ℃～80 ℃ in temperature through frequency, obtains the revolving cup after integrated oxidation is processed.
The laser power that laser apparatus is set is 29W, and laser focal is 12mm, and laser facula sweep velocity is 2mm/s.Regulate laser head to make laser beam incident path on collection surface surface of revolution normal, in bombardment with laser beams energy, turn round air spinning revolving cup, on this turning radius, revolving cup angle of rotation reaches after 360 °, mobile laser facula rotates revolving cup to the scanning strip of the next turning radius, and keeping the Duplication of adjacent laser scanning band is 20%, until laser beam completes scanning to whole cohesion groove face.Surface ratio bulk ceramics oxidation film layer after local laser intensive treatment has higher compactness and hardness, in the relativity process for high speed yarn, shows better wear resisting property.
Test two:
Revolving cup is suitably cleaned in clear water to 3min, then put it in acetone or dehydrated alcohol the ultrasonic cleaning 3min that is 40KHz through frequency, finally cleaning, drying in deionized water; In work tank, modulate working fluid, wherein the concentration of potassium hydroxide is 1g/L, and the concentration of water glass is 5g/L, and the concentration of sodium aluminate is 2g/L, and the concentration of sodium wolframate is 2g/L, and working fluid temperature maintains 20～30 ℃;
Working fluid cell body connects pulse power negative pole, and it is anodal that revolving cup connects the pulse power, and the set handling time is 40min, and supply frequency is 200Hz, and dutycycle is 40%, forward voltage 520V, and negative voltage is 80V, the bulk ceramics oxidation film layer thickness of preparation is 20 μ m.Revolving cup being cleaned in deionized water to 5min, be finally placed in dehydrated alcohol, after the ultrasonic cleaning 5min that is 40KHz, is dry 8min under the condition of 30 ℃～80 ℃ in temperature through frequency, obtains integrated oxidation and processes the revolving cup after reason.
The laser power that laser apparatus is set is 29W, and laser focal is 12mm, and laser facula sweep velocity is 2mm/s.Regulate laser head to make laser beam incident path on collection surface surface of revolution normal, in bombardment with laser beams energy, turn round air spinning revolving cup, on this turning radius, revolving cup angle of rotation reaches after 360 °, mobile laser facula rotates revolving cup to the scanning strip of the next turning radius, and keeping the Duplication of adjacent laser scanning band is 30%, until laser beam completes scanning to whole cohesion groove face.Surface ratio bulk ceramics oxidation film layer after local laser is processed has higher compactness and hardness, in the relativity process for high speed yarn, shows better wear resisting property.
Air spinning revolving cup described in test one and test two is aluminium alloy, and model is LC4.The model that has adopted Britain GUS company to produce in test is the local strengthening processing that the laser apparatus of LUMONICS JK700 carries out rete.The equipment that detects the microscopic appearance of rete is the SIRION scanning electronic microscope (SEM) that U.S. FEI Co. produces.The oxidation film layer many particles in surface and concrete dynamic modulus, the film surface after laser reinforcing comparatively smoothly lacks hole.The equipment that rete microhardness detect to adopt is the DUH-W201S submicroscopic sclerometer of institute of Japanese Zhu Shi society, and oxidation film layer and laser reinforcing rete average hardness value are respectively 451HV and 1026HV, have significantly improved the hardness value of rete after laser reinforcing processing.
Claims (10)
1. an air spinning revolving cup composite ceramics treatment process, is characterized in that, the treating method comprises following steps:
Step 1: pending revolving cup (1) is carried out to integrated oxidation processing, detailed process is: graphite cathode (2) and pending revolving cup (1) are immersed in working fluid completely, and described graphite cathode (2) is positioned at revolving cup (1), utilize the pulse power (3) between graphite cathode (2) and revolving cup (1), to apply the positive and negative alternation DC pulse of one-period, revolving cup (1) integral body is oxidized, then performs step two;
Step 2: the revolving cup that above-mentioned oxide treatment is crossed (1) carries out local strengthening processing, detailed process is: the revolving cup after step 1 oxide treatment (1) is fixed on laser works platform, regulate the laser head of laser apparatus, laser that laser apparatus emits is incided on the scanning strip of a turning radius of described revolving cup (1) inside groove, in laser apparatus Emission Lasers, rotate this revolving cup (1), make laser under the speed of 0.8mm/s to 20mm/s, on current scanning strip, being screw type path scans revolving cup (1), when the angle of rotation of revolving cup (1) reaches 360 °, revolving cup (1) stops the rotation, then perform step three,
Step 3: laser Strahlungseintritt is moved on the scanning strip of the next turning radius of revolving cup (1), and keep the Duplication of adjacent laser scanning band between 5% to 50%, utilize the scan method of step 2 to scan revolving cup (1), when revolving cup (1) inside groove all completes after scanning, obtain the revolving cup (1) after composite ceramicsization is processed.
2. a kind of air spinning revolving cup composite ceramics treatment process according to claim 1, is characterized in that, before step 1, first revolving cup (1) is cleaned, concrete grammar comprises the following steps:
Step is one by one: revolving cup is cleaned in clear water to 1min to 3min, then perform step one or two;
Step 1 two: the revolving cup after step is cleaned is one by one put into acetone or dehydrated alcohol, utilize the ultrasonic cleaning 1min to 3min that frequency is 24KHz～40KHz, then perform step one or three;
Step 1 three: the revolving cup after step 1 two is cleaned is put into deionized water and clean 1min to 2min, then perform step one or four;
Step 1 four: the revolving cup after step 1 three is cleaned is dried, and obtains the revolving cup after cleaning.
3. a kind of air spinning revolving cup composite ceramics treatment process according to claim 1, is characterized in that, working fluid is alkalescence described in step 1, and temperature is between 30 ℃ to 40 ℃.
4. a kind of air spinning revolving cup composite ceramics treatment process according to claim 1, it is characterized in that, the detailed process of utilizing the pulse power (3) to apply the positive and negative alternation DC pulse of one-period between graphite cathode (2) and revolving cup (1) described in step 1 is:
At t1 constantly, it is the direct impulse that Tz, amplitude are Vz that the pulse power (3) is exported a width, and in the finish time of this direct impulse, it is the negative-going pulse that Tf, amplitude are Vf that the pulse power (3) is exported a width;
At t2 constantly, it is the direct impulse that Tz, amplitude are Vz that the pulse power (3) is exported a width, and in the finish time of this direct impulse, it is the negative-going pulse that Tf, amplitude are Vf that the pulse power (3) is exported a width;
The rest may be inferred,
At ti constantly, it is the direct impulse that Tz, amplitude are Vz that the pulse power (3) is exported a width, and in the finish time of this direct impulse, it is the negative-going pulse that Tf, amplitude are Vf that the pulse power (3) is exported a width;
Wherein Vz is 500V to 700V, and Vf is-and 150V is to-30V, and Vz > Vf, ti > ti-1+Tz1+Tf1, Tz >=Tf, Tz and Tf are 0.001s to 0.08s, i=1,2,3,4, n, n is positive integer, from t1 constantly start to the finish time of n pulse be one-period, one-period is 20min to 60min.
5. according to a kind of air spinning revolving cup composite ceramics treatment process described in claim 1,2,3 or 4, it is characterized in that, in step 2 and three processes, the output rating of laser apparatus remains between 50W to 400W.
6. a kind of air spinning revolving cup composite ceramics treatment process according to claim 4, is characterized in that, the frequency of described direct impulse and negative-going pulse is all between 20Hz to 500Hz.
7. according to a kind of air spinning revolving cup composite ceramics treatment process described in claim 1,2,3 or 4, it is characterized in that, local strengthening process to be under the environment of shielding gas, to carry out having, and described shielding gas is argon gas or nitrogen.
8. a kind of air spinning revolving cup composite ceramics treatment process according to claim 1, is characterized in that, laser apparatus is launched the energy of laser at 20j/mm
2to 300j/mm
2between.
9. according to a kind of air spinning revolving cup composite ceramics treatment process described in claim 1,2,3 or 4, it is characterized in that, described laser apparatus is CO2 laser apparatus or Nd:YAG laser apparatus.
10. according to a kind of air spinning revolving cup composite ceramics treatment process described in claim 1,2,3 or 4, it is characterized in that, the material of described revolving cup (1) is aluminum or aluminum alloy material.
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| CN106086985A (en) * | 2016-06-07 | 2016-11-09 | 哈尔滨工业大学 | A kind of soy bean milk making machine emery wheel method for composite ceramic treatment |
| CN106637337A (en) * | 2016-11-21 | 2017-05-10 | 广西大学 | Method for improving compactness of aluminum alloy micro-arc oxide coating |
| CN113897573A (en) * | 2021-09-28 | 2022-01-07 | 德清创智科技股份有限公司 | Preparation method of aluminum-based rotor ceramic coating suitable for chemical fiber two-for-one twister |
| CN113897573B (en) * | 2021-09-28 | 2023-12-12 | 德清创智科技股份有限公司 | Preparation method of aluminum-based rotary cup ceramic coating suitable for chemical fiber two-for-one twister |
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Application publication date: 20140122 |