CN108977799A - A kind of processing method extending grain impurity cleaning machine sieve service life - Google Patents
A kind of processing method extending grain impurity cleaning machine sieve service life Download PDFInfo
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- CN108977799A CN108977799A CN201810853136.5A CN201810853136A CN108977799A CN 108977799 A CN108977799 A CN 108977799A CN 201810853136 A CN201810853136 A CN 201810853136A CN 108977799 A CN108977799 A CN 108977799A
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
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- C09D161/00—Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
- C09D161/34—Condensation polymers of aldehydes or ketones with monomers covered by at least two of the groups C09D161/04, C09D161/18 and C09D161/20
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
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- C09D7/63—Additives non-macromolecular organic
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- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- 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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- 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
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- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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- 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
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- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Abstract
The invention discloses a kind of processing method for extending grain impurity cleaning machine sieve service life, include the following steps: that (1) cleaning treatment, (2) drying process, prepared by (3) reactant A, the preparation of (4) reactant B, (5) mixed liquor C preparation, (6) reactant D preparation, prepared by (7) reactant E, (8) are modified soak preparation, (9) modification, the processing of (10) pulsed laser irradiation, (11) phosphorating treatment.The present invention has carried out special processing to the sieve of grain impurity cleaning machine, it will be apparent that improves corrosion resistant, the antiwear characteristic of sieve, extends the stability in service life and the when of use that it is used, has good application value.
Description
Technical field
The invention belongs to grain machinery working process technical fields, and in particular to a kind of extension grain impurity cleaning machine sieve use
The processing method in service life.
Background technique
The grain usage amount in China is huge, and transport processing etc. is only far from being enough, corresponding design life using manpower
Output plurality of cereals is mechanical.Grain impurity cleaning machine be it is one such, for being screened to fresh harvesting or the cereal displayed
Removal of impurities, be convenient for subsequent transport, sale, process, save etc..Sieve is component indispensable in grain impurity cleaning machine, concerning what is screened out
Efficiency, effect.Such sieve is mostly made of stainless steel material, although stainless steel itself has the qualities such as good water-fast, corrosion resistant,
But use in dust, moist working environment medium, can still be corroded faster for a long time, thus affect the effect screened out and
Service life, performance need further improve.
Summary of the invention
The purpose of the present invention is being directed to existing problem, a kind of place for extending grain impurity cleaning machine sieve service life is provided
Reason method.
The present invention is achieved by the following technical solutions:
A kind of processing method extending grain impurity cleaning machine sieve service life, includes the following steps:
(1) sieve is first put into soaking and washing in electrochemical deoiling agent and handles 15 ~ 20min, taking-up rinses one with clear water after the completion
All over rear spare；
(2) it is dried in the hothouse for being 80 ~ 85 DEG C by step (1) treated sieve is put into temperature, after 40 ~ 45min
It takes out spare；
(3) following substance: 32 ~ 36 parts of N-Methyl pyrrolidones, 8 ~ 11 parts of dihydromethyl propionic acids, 5 ~ 7 is weighed by corresponding parts by weight
Part isophorone diisocyanate, 2 ~ 5 parts of dibutyl tin dilaurates, then put into above-mentioned substance in reaction kettle jointly,
Be stirred continuously after 1.2 ~ 1.5h of processing reactant A is spare；
(4) butanone of reactant A gross mass 28 ~ 32%, 5 ~ 8% nitrocellulose are added into step (3) treated reaction kettle,
Be stirred continuously after 2 ~ 2.5h of processing reactant B is spare；
(5) triethylamine of reactant B gross mass 10 ~ 14% is added into step (4) treated reaction kettle, is stirred continuously processing
It is spare that mixed liquor C is obtained after 1.5 ~ 2h；
(6) it is put into reaction kettle after being mixed formaldehyde and ammeline according to mass ratio 1:1.3 ~ 1.5, it is then added
Reactant D is obtained after the boric acid of gross mass 2.2 ~ 2.5%, 0.38 ~ 0.42% yttrium nitrate, is then adjusted to the pH value of reactant D
9.0 ~ 9.5, heating keep reaction kettle in temperature be 42 ~ 45 DEG C, and with 440 ~ 460 revs/min of revolving speed stir process 42 ~
It is spare after 46min；
(7) 9 ~ 11% polyethylene glycol of reactant D gross mass, 2.4 ~ 2.8% benzene are added into step (6) treated reaction kettle
Phenol, 10 ~ 12% kodalk, 3 ~ 5% aluminate coupling agent, 3 ~ 6% calgon, 9 ~ 13% triphenyl phosphate, 2 ~
Then temperature is risen to 48 ~ 50 DEG C by 5% nonylphenol polyoxyethylene ether, with 730 ~ 750 revs/min of revolving speed stir process 1 ~
Taken out after 1.2h, then with 6 ~ 8 times of its gross mass of deionized water take out after mixing jointly reactant E is spare；
(8) the resulting reactant E of step (7) is added to step (5) treated in reaction kettle, the amount of addition is mixed liquor C
Then the 10 ~ 14% of gross mass handle 50 ~ 55min with the ultrasonic oscillation that frequency is 420 ~ 460kHz, finally take out modified
Soak is spare；
(9) by step (2), treated that sieve is immersed in the resulting modified soak of step (8), and heating keeps modified and impregnates
The temperature of liquid is 42 ~ 44 DEG C, spare with sieve is taken out after 35 ~ 40min of ultrasonic oscillation processing that frequency is 520 ~ 560kHz；
(10) by step (9) treated sieve is put into pulse laser impact equipment, the wavelength for controlling pulse laser is 900
~ 950nm, pulse width are 23 ~ 24ns, and single pulse energy is 10 ~ 12J, are taken out after the completion of processing spare；
(11) by step (10), treated that sieve is put into etching solution carries out phosphorating treatment, takes out after 1 ~ 2h, finally
It is put into the drying box that temperature is 90 ~ 95 DEG C after 2 ~ 3h is dried.
Further, electrochemical deoiling agent as described in step (1) is acetone.
Further, it is always nitrogen protection environment in reaction kettle described in step (3), and heats and keep in reaction kettle
Temperature be 41 ~ 44 DEG C.
Further, it is always nitrogen protection environment in reaction kettle described in step (4), and heats and keep in reaction kettle
Temperature be 71 ~ 75 DEG C.
Further, it is always nitrogen protection environment in reaction kettle described in step (5), and heats and keep in reaction kettle
Temperature be 39 ~ 43 DEG C.
Further, it is always nitrogen protection environment in reaction kettle described in step (8), and heats and keep in reaction kettle
Temperature be 47 ~ 51 DEG C.
Further, the processing of laser-impact described in step (10) is by the way of being repeated several times impact, repeat impact
Repetitive rate be 0.34 ~ 0.38Hz, overlapping rate 50%, and laser-impact processing when, sieve upper surface be equipped with absorbed layer,
The absorbed layer is aluminium foil.
Further, each ingredient and its corresponding content in etching solution described in step (11) are as follows: sodium dihydrogen phosphate
44 ~ 48g/L, 0 ~ 14ml/L of phosphatase 11,3 ~ 5g/L of sodium nitrate, 2 ~ 4g/L of malic acid, 0.5 ~ 1g/L of citric acid, 1.5 ~ 2g/ of tartaric acid
L, surplus are water.
In order to promote service performance and the service life of grain impurity cleaning machine sieve, the present invention has carried out special processing to it, has had
Effect improves its corrosion resistant ability, enhances it and uses quality and service life.A kind of modified soak is wherein first prepared, wherein mixing
Closing liquid C is special aqueous nitrocellulose emulsion, has good caking property, has then prepared reactant E again, reactant E is
One kind with formaldehyde, ammeline be main polymeric material, in alkaline environment, the catalytic action through boric acid, yttrium nitrate, inclined boron
Sour sodium, aluminate coupling agent, triphenyl phosphate are composite modified, cooperation phenol, the ingredients such as polyethylene glycol, formation with formaldehyde, cyanogen
A kind of low-molecular-weight resin solution that the phenol-modified polymer formulation of amine-aldehyde-based on the resin that diamides reaction generates goes out is urinated,
Then composite modified processing is carried out to mixed liquor C with this reactant E, the modification soak being finally made is a kind of chitosan, receives
The nitrocellulose emulsion of the filling-modified polymer-modified grafting of the rice cooperation such as titanium dioxide, the caking property of this lotion, heat resistance,
Stability is significantly improved, and then carries out immersion treatment to sieve with this lotion, and the effective component of above-mentioned emulsion is certain
Being absorbed and fixed on the surface of sieve for amount, then carries out laser irradiation processing with pulse laser again, under the action of this laser,
The effective component of above-mentioned emulsion and the surface texture of sieve are crosslinked secure bond, form a coating, this coating is attached to
On metal surface, the bond strength between screen surface is high, has finally carried out phosphorating treatment, the phosphating coat and preamble generated at this time
The coating that step is formed is jointly compound, forms a kind of more fine and close composite film, hence it is evident that improve the protection to sieve
Effect.
The present invention has the advantage that compared with prior art
The present invention has carried out special processing to the sieve of grain impurity cleaning machine, it will be apparent that corrosion resistant, the antiwear characteristic of sieve are improved,
The stability in service life and the when of use that it is used is extended, there is good application value.
Specific embodiment
Embodiment 1
A kind of processing method extending grain impurity cleaning machine sieve service life, includes the following steps:
(1) sieve is first put into soaking and washing in electrochemical deoiling agent and handles 15min, after taking-up is rinsed one time with clear water after the completion
It is spare；
(2) it is dried, is taken out after 40min standby in the hothouse for being 80 DEG C by step (1) treated sieve is put into temperature
With；
(3) following substance: 32 parts of N-Methyl pyrrolidones, 8 parts of dihydromethyl propionic acids, 5 parts of different Fo Er is weighed by corresponding parts by weight
Ketone diisocyanate, 2 parts of dibutyl tin dilaurates, then above-mentioned substance is put into reaction kettle, be stirred continuously place jointly
It is spare that reactant A is obtained after reason 1.2h；
(4) butanone of reactant A gross mass 28%, 5% nitrocellulose are added into step (3) treated reaction kettle, constantly
It is spare that reactant B is obtained after stir process 2h；
(5) triethylamine of reactant B gross mass 10% is added into step (4) treated reaction kettle, is stirred continuously processing 1.5h
It is spare that mixed liquor C is obtained afterwards；
(6) it is put into reaction kettle after being mixed formaldehyde and ammeline according to mass ratio 1:1.3, its total matter is then added
Reactant D is obtained after measuring 2.2% boric acid, 0.38% yttrium nitrate, the pH value of reactant D is then adjusted to 9.0, heating keeps anti-
Answering the temperature in kettle is 42 DEG C, and with spare after 440 revs/min of revolving speed stir process 42min；
(7) 9% polyethylene glycol of reactant D gross mass, 2.4% phenol, 10% are added into step (6) treated reaction kettle
Kodalk, 3% aluminate coupling agent, 3% calgon, 9% triphenyl phosphate, 2% Nonyl pheno
Then temperature is risen to 48 DEG C by ether, to take out after 730 revs/min of revolving speed stir process 1h, then go with 6 times of its gross mass
Ionized water take out after mixing jointly reactant E is spare；
(8) the resulting reactant E of step (7) is added to step (5) treated in reaction kettle, the amount of addition is mixed liquor C
Then the 10% of gross mass handles 50min with the ultrasonic oscillation that frequency is 420kHz, finally take out to be modified soak spare；
(9) by step (2), treated that sieve is immersed in the resulting modified soak of step (8), and heating keeps modified and impregnates
The temperature of liquid is 42 DEG C, is taken out sieve after the ultrasonic oscillation for being 520kHz with frequency processing 35min spare；
(10) by step (9) treated sieve is put into pulse laser impact equipment, the wavelength for controlling pulse laser is 900
~ 950nm, pulse width 23ns, single pulse energy 10J take out spare after the completion of processing；
(11) by step (10), treated that sieve is put into etching solution carries out phosphorating treatment, takes out after 1h, finally puts
Enter after 2h is dried into drying box at a temperature of 90 °C.
Further, electrochemical deoiling agent as described in step (1) is acetone.
Further, it is always nitrogen protection environment in reaction kettle described in step (3), and heats and keep in reaction kettle
Temperature be 41 DEG C.
Further, it is always nitrogen protection environment in reaction kettle described in step (4), and heats and keep in reaction kettle
Temperature be 71 DEG C.
Further, it is always nitrogen protection environment in reaction kettle described in step (5), and heats and keep in reaction kettle
Temperature be 39 DEG C.
Further, it is always nitrogen protection environment in reaction kettle described in step (8), and heats and keep in reaction kettle
Temperature be 47 DEG C.
Further, the processing of laser-impact described in step (10) is by the way of being repeated several times impact, repeat impact
Repetitive rate be 0.34Hz, overlapping rate 50%, and laser-impact processing when, sieve upper surface be equipped with absorbed layer, the suction
Receipts layer is aluminium foil.
Further, each ingredient and its corresponding content in etching solution described in step (11) are as follows: sodium dihydrogen phosphate
44g/L, phosphatase 11 0ml/L, sodium nitrate 3g/L, malic acid 2g/L, citric acid 0.5g/L, tartaric acid 1.5g/L, surplus are water.
Embodiment 2
A kind of processing method extending grain impurity cleaning machine sieve service life, includes the following steps:
(1) sieve is first put into soaking and washing in electrochemical deoiling agent and handles 18min, after taking-up is rinsed one time with clear water after the completion
It is spare；
(2) it is dried, is taken out after 42min standby in the hothouse for being 83 DEG C by step (1) treated sieve is put into temperature
With；
(3) following substance: 34 parts of N-Methyl pyrrolidones, 10 parts of dihydromethyl propionic acids, 6 parts of different Fo Er is weighed by corresponding parts by weight
Ketone diisocyanate, 4 parts of dibutyl tin dilaurates, then above-mentioned substance is put into reaction kettle, be stirred continuously place jointly
It is spare that reactant A is obtained after reason 1.4h；
(4) butanone of reactant A gross mass 30%, 7% nitrocellulose are added into step (3) treated reaction kettle, constantly
It is spare that reactant B is obtained after stir process 2.3h；
(5) triethylamine of reactant B gross mass 12% is added into step (4) treated reaction kettle, is stirred continuously processing 1.8h
It is spare that mixed liquor C is obtained afterwards；
(6) it is put into reaction kettle after being mixed formaldehyde and ammeline according to mass ratio 1:1.4, its total matter is then added
Reactant D is obtained after measuring 2.4% boric acid, 0.40% yttrium nitrate, the pH value of reactant D is then adjusted to 9.2, heating keeps anti-
Answering the temperature in kettle is 43 DEG C, and with spare after 450 revs/min of revolving speed stir process 44min；
(7) 10% polyethylene glycol of reactant D gross mass, 2.6% phenol, 11% are added into step (6) treated reaction kettle
Kodalk, 4% aluminate coupling agent, 5% calgon, 12% triphenyl phosphate, 4% Nonyl pheno
Then temperature is risen to 49 DEG C by ether, to be taken out after 740 revs/min of revolving speed stir process 1.1h, then with 7 times of its gross mass
Deionized water take out after mixing jointly reactant E is spare；
(8) the resulting reactant E of step (7) is added to step (5) treated in reaction kettle, the amount of addition is mixed liquor C
Then the 12% of gross mass handles 53min with the ultrasonic oscillation that frequency is 440kHz, finally take out to be modified soak spare；
(9) by step (2), treated that sieve is immersed in the resulting modified soak of step (8), and heating keeps modified and impregnates
The temperature of liquid is 43 DEG C, is taken out sieve after the ultrasonic oscillation for being 540kHz with frequency processing 38min spare；
(10) by step (9) treated sieve is put into pulse laser impact equipment, the wavelength for controlling pulse laser is 900
~ 950nm, pulse width 23ns, single pulse energy 11J take out spare after the completion of processing；
(11) by step (10), treated that sieve is put into etching solution carries out phosphorating treatment, takes out after 1.5h, finally
It is put into the drying box that temperature is 93 DEG C after 2.5h is dried.
Further, electrochemical deoiling agent as described in step (1) is acetone.
Further, it is always nitrogen protection environment in reaction kettle described in step (3), and heats and keep in reaction kettle
Temperature be 43 DEG C.
Further, it is always nitrogen protection environment in reaction kettle described in step (4), and heats and keep in reaction kettle
Temperature be 74 DEG C.
Further, it is always nitrogen protection environment in reaction kettle described in step (5), and heats and keep in reaction kettle
Temperature be 42 DEG C.
Further, it is always nitrogen protection environment in reaction kettle described in step (8), and heats and keep in reaction kettle
Temperature be 49 DEG C.
Further, the processing of laser-impact described in step (10) is by the way of being repeated several times impact, repeat impact
Repetitive rate be 0.36Hz, overlapping rate 50%, and laser-impact processing when, sieve upper surface be equipped with absorbed layer, the suction
Receipts layer is aluminium foil.
Further, each ingredient and its corresponding content in etching solution described in step (11) are as follows: sodium dihydrogen phosphate
46g/L, phosphatase 11 2ml/L, sodium nitrate 4g/L, malic acid 3g/L, citric acid 0.8g/L, tartaric acid 1.8g/L, surplus are water.
Embodiment 3
A kind of processing method extending grain impurity cleaning machine sieve service life, includes the following steps:
(1) sieve is first put into soaking and washing in electrochemical deoiling agent and handles 20min, after taking-up is rinsed one time with clear water after the completion
It is spare；
(2) it is dried, is taken out after 45min standby in the hothouse for being 85 DEG C by step (1) treated sieve is put into temperature
With；
(3) following substance: 36 parts of N-Methyl pyrrolidones, 11 parts of dihydromethyl propionic acids, 7 parts of different Fo Er is weighed by corresponding parts by weight
Ketone diisocyanate, 5 parts of dibutyl tin dilaurates, then above-mentioned substance is put into reaction kettle, be stirred continuously place jointly
It is spare that reactant A is obtained after reason 1.5h；
(4) butanone of reactant A gross mass 32%, 8% nitrocellulose are added into step (3) treated reaction kettle, constantly
It is spare that reactant B is obtained after stir process 2.5h；
(5) triethylamine of reactant B gross mass 14% is added into step (4) treated reaction kettle, after being stirred continuously processing 2h
It is spare to obtain mixed liquor C；
(6) it is put into reaction kettle after being mixed formaldehyde and ammeline according to mass ratio 1:1.5, its total matter is then added
Reactant D is obtained after measuring 2.5% boric acid, 0.42% yttrium nitrate, the pH value of reactant D is then adjusted to 9.5, heating keeps anti-
Answering the temperature in kettle is 45 DEG C, and with spare after 460 revs/min of revolving speed stir process 46min；
(7) 11% polyethylene glycol of reactant D gross mass, 2.8% phenol, 12% are added into step (6) treated reaction kettle
Kodalk, 5% aluminate coupling agent, 6% calgon, 13% triphenyl phosphate, 5% Nonyl pheno
Then temperature is risen to 50 DEG C by ether, to be taken out after 750 revs/min of revolving speed stir process 1.2h, then with 8 times of its gross mass
Deionized water take out after mixing jointly reactant E is spare；
(8) the resulting reactant E of step (7) is added to step (5) treated in reaction kettle, the amount of addition is mixed liquor C
Then the 14% of gross mass handles 55min with the ultrasonic oscillation that frequency is 460kHz, finally take out to be modified soak spare；
(9) by step (2), treated that sieve is immersed in the resulting modified soak of step (8), and heating keeps modified and impregnates
The temperature of liquid is 44 DEG C, is taken out sieve after the ultrasonic oscillation for being 560kHz with frequency processing 40min spare；
(10) by step (9) treated sieve is put into pulse laser impact equipment, the wavelength for controlling pulse laser is 900
~ 950nm, pulse width 24ns, single pulse energy 12J take out spare after the completion of processing；
(11) by step (10), treated that sieve is put into etching solution carries out phosphorating treatment, takes out after 2h, finally puts
Enter after 3h is dried in the drying box for being 95 DEG C to temperature.
Further, electrochemical deoiling agent as described in step (1) is acetone.
Further, it is always nitrogen protection environment in reaction kettle described in step (3), and heats and keep in reaction kettle
Temperature be 44 DEG C.
Further, it is always nitrogen protection environment in reaction kettle described in step (4), and heats and keep in reaction kettle
Temperature be 75 DEG C.
Further, it is always nitrogen protection environment in reaction kettle described in step (5), and heats and keep in reaction kettle
Temperature be 43 DEG C.
Further, it is always nitrogen protection environment in reaction kettle described in step (8), and heats and keep in reaction kettle
Temperature be 51 DEG C.
Further, the processing of laser-impact described in step (10) is by the way of being repeated several times impact, repeat impact
Repetitive rate be 0.38Hz, overlapping rate 50%, and laser-impact processing when, sieve upper surface be equipped with absorbed layer, the suction
Receipts layer is aluminium foil.
Further, each ingredient and its corresponding content in etching solution described in step (11) are as follows: sodium dihydrogen phosphate
48g/L, phosphatase 11 4ml/L, sodium nitrate 5g/L, malic acid 4g/L, citric acid 1g/L, tartaric acid 2g/L, surplus are water.
Comparative example 1
This comparative example 1 compared with Example 2, eliminates step (6), step (7) and subsequent corresponding processing, in addition to this
Method and step is all the same.
Comparative example 2
This comparative example 2 compared with Example 2, eliminates the processing of step (10), and method and step in addition to this is all the same.
Comparative example 3
This comparative example 3 compared with Example 2, eliminates step (6), step (7) and subsequent corresponding processing, also eliminates
The processing of step (10), method and step in addition to this are all the same.
In order to compare and simplify experiment, select production common No. 304 stainless steel materials of sieve as experimental subjects, respectively
It is handled with above-described embodiment 2, comparative example 1, comparative example 2, the corresponding method of comparative example 3, finally to each
Treated that stainless steel material is tested for the property for group, and specific correlation data is as shown in table 1 below:
Table 1
Note: anticorrosion stress-resistant duration described in upper table 1 is tested referring to GB/T17898-1999.
The method of the present invention can be good at promoting the performances such as the corrosion resistant of sieve it can be seen from upper table 1, improve its use
Stability and the service life, the great market competitiveness.
Claims (8)
1. a kind of processing method for extending grain impurity cleaning machine sieve service life, which comprises the steps of:
(1) sieve is first put into soaking and washing in electrochemical deoiling agent and handles 15 ~ 20min, taking-up rinses one with clear water after the completion
All over rear spare；
(2) it is dried in the hothouse for being 80 ~ 85 DEG C by step (1) treated sieve is put into temperature, after 40 ~ 45min
It takes out spare；
(3) following substance: 32 ~ 36 parts of N-Methyl pyrrolidones, 8 ~ 11 parts of dihydromethyl propionic acids, 5 ~ 7 is weighed by corresponding parts by weight
Part isophorone diisocyanate, 2 ~ 5 parts of dibutyl tin dilaurates, then put into above-mentioned substance in reaction kettle jointly,
Be stirred continuously after 1.2 ~ 1.5h of processing reactant A is spare；
(4) butanone of reactant A gross mass 28 ~ 32%, 5 ~ 8% nitrocellulose are added into step (3) treated reaction kettle,
Be stirred continuously after 2 ~ 2.5h of processing reactant B is spare；
(5) triethylamine of reactant B gross mass 10 ~ 14% is added into step (4) treated reaction kettle, is stirred continuously processing
It is spare that mixed liquor C is obtained after 1.5 ~ 2h；
(6) it is put into reaction kettle after being mixed formaldehyde and ammeline according to mass ratio 1:1.3 ~ 1.5, it is then added
Reactant D is obtained after the boric acid of gross mass 2.2 ~ 2.5%, 0.38 ~ 0.42% yttrium nitrate, is then adjusted to the pH value of reactant D
9.0 ~ 9.5, heating keep reaction kettle in temperature be 42 ~ 45 DEG C, and with 440 ~ 460 revs/min of revolving speed stir process 42 ~
It is spare after 46min；
(7) 9 ~ 11% polyethylene glycol of reactant D gross mass, 2.4 ~ 2.8% benzene are added into step (6) treated reaction kettle
Phenol, 10 ~ 12% kodalk, 3 ~ 5% aluminate coupling agent, 3 ~ 6% calgon, 9 ~ 13% triphenyl phosphate, 2 ~
Then temperature is risen to 48 ~ 50 DEG C by 5% nonylphenol polyoxyethylene ether, with 730 ~ 750 revs/min of revolving speed stir process 1 ~
Taken out after 1.2h, then with 6 ~ 8 times of its gross mass of deionized water take out after mixing jointly reactant E is spare；
(8) the resulting reactant E of step (7) is added to step (5) treated in reaction kettle, the amount of addition is mixed liquor C
Then the 10 ~ 14% of gross mass handle 50 ~ 55min with the ultrasonic oscillation that frequency is 420 ~ 460kHz, finally take out modified
Soak is spare；
(9) by step (2), treated that sieve is immersed in the resulting modified soak of step (8), and heating keeps modified and impregnates
The temperature of liquid is 42 ~ 44 DEG C, spare with sieve is taken out after 35 ~ 40min of ultrasonic oscillation processing that frequency is 520 ~ 560kHz；
(10) by step (9) treated sieve is put into pulse laser impact equipment, the wavelength for controlling pulse laser is 900
~ 950nm, pulse width are 23 ~ 24ns, and single pulse energy is 10 ~ 12J, are taken out after the completion of processing spare；
(11) by step (10), treated that sieve is put into etching solution carries out phosphorating treatment, takes out after 1 ~ 2h, finally
It is put into the drying box that temperature is 90 ~ 95 DEG C after 2 ~ 3h is dried.
2. a kind of processing method for extending grain impurity cleaning machine sieve service life according to claim 1, which is characterized in that
Electrochemical deoiling agent as described in step (1) is acetone.
3. a kind of processing method for extending grain impurity cleaning machine sieve service life according to claim 1, which is characterized in that
It is always nitrogen protection environment in reaction kettle described in step (3), and heating the temperature in holding reaction kettle is 41 ~ 44 DEG C.
4. a kind of processing method for extending grain impurity cleaning machine sieve service life according to claim 1, which is characterized in that
It is always nitrogen protection environment in reaction kettle described in step (4), and heating the temperature in holding reaction kettle is 71 ~ 75 DEG C.
5. a kind of processing method for extending grain impurity cleaning machine sieve service life according to claim 1, which is characterized in that
It is always nitrogen protection environment in reaction kettle described in step (5), and heating the temperature in holding reaction kettle is 39 ~ 43 DEG C.
6. a kind of processing method for extending grain impurity cleaning machine sieve service life according to claim 1, which is characterized in that
It is always nitrogen protection environment in reaction kettle described in step (8), and heating the temperature in holding reaction kettle is 47 ~ 51 DEG C.
7. a kind of processing method for extending grain impurity cleaning machine sieve service life according to claim 1, which is characterized in that
By the way of the processing of laser-impact described in step (10) is using impact is repeated several times, the repetitive rate of repeat impact for 0.34 ~
0.38Hz, overlapping rate 50%, and in laser-impact processing, it is equipped with absorbed layer in sieve upper surface, the absorbed layer is aluminium
Foil.
8. a kind of processing method for extending grain impurity cleaning machine sieve service life according to claim 1, which is characterized in that
Each ingredient and its corresponding content in etching solution described in step (11) are as follows: 44 ~ 48g/L of sodium dihydrogen phosphate, phosphatase 11 0 ~
14ml/L, 3 ~ 5g/L of sodium nitrate, 2 ~ 4g/L of malic acid, 0.5 ~ 1g/L of citric acid, 1.5 ~ 2g/L of tartaric acid, surplus are water.
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