CN111020646A - Treatment method for improving wear resistance and corrosion resistance of stainless steel metal part of agricultural machine - Google Patents

Treatment method for improving wear resistance and corrosion resistance of stainless steel metal part of agricultural machine Download PDF

Info

Publication number
CN111020646A
CN111020646A CN201911281081.6A CN201911281081A CN111020646A CN 111020646 A CN111020646 A CN 111020646A CN 201911281081 A CN201911281081 A CN 201911281081A CN 111020646 A CN111020646 A CN 111020646A
Authority
CN
China
Prior art keywords
treatment
stainless steel
steel metal
diatomite
metal piece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201911281081.6A
Other languages
Chinese (zh)
Inventor
刘超
曹成茂
刘正元
汪永武
李梦龙
王骏
吴问天
余飞
端梦云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Hongxiang Agricultural Machinery Co ltd
Original Assignee
Anhui Hongxiang Agricultural Machinery Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Hongxiang Agricultural Machinery Co ltd filed Critical Anhui Hongxiang Agricultural Machinery Co ltd
Priority to CN201911281081.6A priority Critical patent/CN111020646A/en
Publication of CN111020646A publication Critical patent/CN111020646A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/12—Electroplating: Baths therefor from solutions of nickel or cobalt
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/34—Pretreatment of metallic surfaces to be electroplated
    • C25D5/36—Pretreatment of metallic surfaces to be electroplated of iron or steel
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/48—After-treatment of electroplated surfaces
    • C25D5/50—After-treatment of electroplated surfaces by heat-treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

The invention discloses a treatment method for improving the wear resistance and corrosion resistance of stainless steel metal parts of agricultural machinery, which comprises the following steps: firstly, cleaning and activating treatment; secondly, surface electroplating treatment; (III) surface enhancement treatment; and (IV) quality guarantee treatment. The invention provides a method for processing stainless steel metal parts of agricultural machinery, which has relatively simple processing steps and is suitable for improvement and popularization of the prior art, and the processed stainless steel metal parts have good wear resistance, corrosion resistance, weather resistance and the like, so that the service life is obviously prolonged.

Description

Treatment method for improving wear resistance and corrosion resistance of stainless steel metal part of agricultural machine
Technical Field
The invention belongs to the technical field of agricultural machinery equipment treatment, and particularly relates to a treatment method for improving the wear resistance and corrosion resistance of a stainless steel metal part of agricultural machinery.
Background
Agricultural machinery refers to various machines used in the production process of crop planting and animal husbandry, as well as in the primary processing and treatment process of agricultural and animal products. Agricultural machinery includes agricultural power machinery, farmland construction machinery, soil farming machinery, planting and fertilizing machinery, plant protection machinery, farmland irrigation and drainage machinery, crop harvesting machinery, agricultural product processing machinery, animal husbandry machinery, agricultural transportation machinery and the like. The generalized agricultural machinery also comprises forestry machinery, fishery machinery and rural subsidiary machinery such as silkworm, beekeeping, edible fungus cultivation and the like. Agricultural machinery belongs to relative concept, refers to a general term for all machinery used in agriculture, animal husbandry, forestry and fishery, and belongs to the category of agricultural implements. The popularization of agricultural machinery is called agricultural mechanization.
As the state promotes the level of agricultural organization and accelerates the implementation of rural infrastructure policies, the utilization rate of agricultural machinery is higher and higher. The rapid development of mechanization makes the service conditions of equipment and components increasingly strict, and thus the requirements for material properties are also increasingly strict. In agricultural machinery, the amount of stainless steel used is large, for example, common shells, lining plates and the like are mostly made of stainless steel materials, and the stainless steel materials are inevitably corroded and abraded and impacted when used in a long-term natural environment, so that the stainless steel materials need to be subjected to enhancement treatment on the characteristics of wear resistance, corrosion resistance and the like. In the prior art, stainless steel is subjected to a plurality of strengthening treatment modes, and electroplating is a common mode. The application numbers are: 201710399085.9 discloses a plating solution and a plating method for plating pearl nickel on stainless steel, which effectively plates a nickel layer on the surface of the stainless steel, and improves the appearance and the use quality of the stainless steel. However, the nickel plating treatment is complex, and the stainless steel still has great progress space in terms of wear resistance and corrosion resistance, and the application range of the stainless steel in the field of agricultural machinery is limited.
Disclosure of Invention
The invention aims to provide a treatment method for improving the wear resistance and corrosion resistance of stainless steel metal parts of agricultural machinery, aiming at the existing problems.
The invention is realized by the following technical scheme:
a treatment method for improving the wear resistance and corrosion resistance of stainless steel metal parts of agricultural machinery comprises the following steps:
(I) cleaning and activating treatment:
firstly, immersing a stainless steel metal piece into deoiling liquid, taking out after immersion treatment for 20-25 min, immersing the stainless steel metal piece into acid liquid after washing the stainless steel metal piece once with clear water, taking out after immersion treatment for 5-10 s, and finally washing the stainless steel metal piece once with clear water for later use;
(II) surface electroplating treatment:
putting the stainless steel metal piece treated in the step (one) into a prepared electroplating treatment liquid, then carrying out electroplating treatment, controlling the duration of the electroplating treatment to be 30-50 min, and taking out the stainless steel metal piece for later use; the electroplating treatment liquid is added with a special diatomite component;
(III) surface enhancement treatment:
putting the stainless steel metal piece treated in the step (II) into a reaction furnace, keeping the inside of the reaction furnace in an argon environment, introducing mixed gas into the reaction furnace, increasing the pressure in the reaction furnace to 0.4-0.5 MPa, raising the temperature to 450-500 ℃, preserving heat and pressure for 40-50 min, and taking out for later use;
(IV) quality guarantee treatment:
and (5) putting the stainless steel metal piece processed in the step (three) into a constant temperature box, processing for 2-4 h, and taking out.
Further, the deoiling liquid in the step (one) comprises the following components in percentage by weight: 40-45 g/L of sodium carbonate, 20-25 g/L of sodium phosphate, 4-6 g/L of emulsifier and the balance of deionized water.
Further, the acid solution in the step (I) is a sulfuric acid solution with the concentration of 60-65 ml/L.
Further, the electroplating treatment liquid in the step (II) comprises the following components in percentage by weight: 105-120 g/L of nickel sulfate, 2-5 g/L of tartaric acid, 25-30 g/L of sodium citrate, 5-8 g/L of sodium molybdate, 0.3-0.5 g/L of sodium dodecyl benzene sulfonate, 75-85 g/L of diatomite and the balance of deionized water.
Further, the diatomite is subjected to the following special treatment: the method comprises the steps of firstly putting diatomite into a calcining furnace at the temperature of 800-850 ℃ for calcining treatment, taking out the diatomite after 1-2 hours, then immersing the diatomite into a silane coupling agent solution with the mass fraction of 5-7%, filtering out the diatomite after 30-40 minutes of soaking treatment, washing the diatomite with deionized water once, and then airing the diatomite.
Further, the pH value of the electroplating treatment liquid is controlled to be 7-8, the temperature is controlled to be 36-42 ℃, and the current density is controlled to be 5-7A/dm during the electroplating treatment in the step (II)2。
Further, the mixed gas in the step (III) is ethane and carbon monoxide which are mixed according to the volume ratio of 1: 1.5-2, wherein the introduction amount of the mixed gas is 600-700 ml/min.
Further, the temperature in the constant temperature box in the step (IV) is controlled to be 80-90 ℃, and ultrasonic treatment is continuously carried out during the constant temperature treatment.
Further, the frequency of the ultrasonic wave is controlled to be 500-600 kHz during ultrasonic wave treatment.
At present, the treatment mode of the stainless steel part material of the agricultural machine is common, and the invention is specially improved, so that the process condition and the mode are improved during electroplating treatment, and the comprehensive use performance of the material is effectively improved. In the treatment process, the stainless steel metal piece is cleaned and activated firstly, the surface is purified and activated, the subsequent processing treatment is facilitated, then the electroplating treatment operation is carried out on the stainless steel metal piece, the deposition of metal nickel and molybdenum on the stainless steel metal piece is realized during the electroplating treatment, a large amount of specially treated diatomite with micron-sized particles can be adsorbed and filled in an electroplating layer during the deposition process, the filling and compounding are realized, then the performance enhancement of the electroplating layer is realized by utilizing the high-temperature and high-pressure conditions during the surface enhancement treatment process, specifically, under the argon environment, the high temperature and high pressure can promote reducing gas carbon monoxide to reduce metal oxides such as ferric oxide and the like contained in the diatomite into atomic iron and the like, and the component can catalyze and promote the carbon chain fracture of ethane, so as to generate a deposited graphene component on the coating, the directly generated graphene component has strong binding force with an electroplating coating, high compatibility and further composite filling effect, the corrosion resistance and the wear resistance of the graphene further improve the stability of the coating, the quality of the surface layer is further effectively enhanced, quality guarantee treatment is finally carried out, the internal stress of the coating is eliminated by constant temperature and ultrasonic treatment, and the adhesion stability of the coating on a stainless steel material substrate is improved.
Compared with the prior art, the invention has the following advantages:
the invention provides a method for processing stainless steel metal parts of agricultural machinery, which has relatively simple processing steps and is suitable for improvement and popularization of the prior art, the processed stainless steel metal parts have good wear resistance, corrosion resistance, weather resistance and the like, the service life is obviously prolonged, and the use value and the competitiveness are effectively improved.
Detailed Description
A treatment method for improving the wear resistance and corrosion resistance of stainless steel metal parts of agricultural machinery comprises the following steps:
(I) cleaning and activating treatment:
firstly, immersing a stainless steel metal piece into deoiling liquid, taking out after immersion treatment for 20-25 min, immersing the stainless steel metal piece into acid liquid after washing the stainless steel metal piece once with clear water, taking out after immersion treatment for 5-10 s, and finally washing the stainless steel metal piece once with clear water for later use;
(II) surface electroplating treatment:
putting the stainless steel metal piece treated in the step (one) into a prepared electroplating treatment liquid, then carrying out electroplating treatment, controlling the duration of the electroplating treatment to be 30-50 min, and taking out the stainless steel metal piece for later use; the electroplating treatment liquid is added with a special diatomite component;
(III) surface enhancement treatment:
putting the stainless steel metal piece treated in the step (II) into a reaction furnace, keeping the inside of the reaction furnace in an argon environment, introducing mixed gas into the reaction furnace, increasing the pressure in the reaction furnace to 0.4-0.5 MPa, raising the temperature to 450-500 ℃, preserving heat and pressure for 40-50 min, and taking out for later use;
(IV) quality guarantee treatment:
and (5) putting the stainless steel metal piece processed in the step (three) into a constant temperature box, processing for 2-4 h, and taking out.
Further, the deoiling liquid in the step (one) comprises the following components in percentage by weight: 40-45 g/L of sodium carbonate, 20-25 g/L of sodium phosphate, 4-6 g/L of emulsifier and the balance of deionized water.
Further, the acid solution in the step (I) is a sulfuric acid solution with the concentration of 60-65 ml/L.
Further, the electroplating treatment liquid in the step (II) comprises the following components in percentage by weight: 105-120 g/L of nickel sulfate, 2-5 g/L of tartaric acid, 25-30 g/L of sodium citrate, 5-8 g/L of sodium molybdate, 0.3-0.5 g/L of sodium dodecyl benzene sulfonate, 75-85 g/L of diatomite and the balance of deionized water.
Further, the diatomite is subjected to the following special treatment: the method comprises the steps of firstly putting diatomite into a calcining furnace at the temperature of 800-850 ℃ for calcining treatment, taking out the diatomite after 1-2 hours, then immersing the diatomite into a silane coupling agent solution with the mass fraction of 5-7%, filtering out the diatomite after 30-40 minutes of soaking treatment, washing the diatomite with deionized water once, and then airing the diatomite.
Further, the pH value of the electroplating treatment liquid is controlled to be 7-8, the temperature is controlled to be 36-42 ℃, and the current density is controlled to be 5-7A/dm during the electroplating treatment in the step (II)2。
Further, the mixed gas in the step (III) is ethane and carbon monoxide which are mixed according to the volume ratio of 1: 1.5-2, wherein the introduction amount of the mixed gas is 600-700 ml/min.
Further, the temperature in the constant temperature box in the step (IV) is controlled to be 80-90 ℃, and ultrasonic treatment is continuously carried out during the constant temperature treatment.
Further, the frequency of the ultrasonic wave is controlled to be 500-600 kHz during ultrasonic wave treatment.
The present invention will be further explained with reference to specific examples.
Example 1
A treatment method for improving the wear resistance and corrosion resistance of stainless steel metal parts of agricultural machinery comprises the following steps:
(I) cleaning and activating treatment:
firstly, immersing a stainless steel metal piece into deoiling liquid, taking out after immersion treatment for 20min, immersing the stainless steel metal piece into acid liquid after washing the stainless steel metal piece once by using clear water, taking out after immersion treatment for 5s, and finally washing the stainless steel metal piece once by using clear water for later use;
(II) surface electroplating treatment:
putting the stainless steel metal piece treated in the step (one) into a prepared electroplating treatment liquid, then carrying out electroplating treatment, controlling the duration of the electroplating treatment to be 30min, and taking out the stainless steel metal piece for later use; the electroplating treatment liquid is added with a special diatomite component;
(III) surface enhancement treatment:
putting the stainless steel metal piece treated in the step (II) into a reaction furnace, keeping the inside of the reaction furnace in an argon environment, introducing mixed gas into the reaction furnace, increasing the pressure in the reaction furnace to 0.4MPa, raising the temperature to 450 ℃, preserving heat and pressure for 40min, and taking out for later use;
(IV) quality guarantee treatment:
and (5) putting the stainless steel metal piece treated in the step (three) into a constant temperature box, treating for 2h, and taking out.
Further, the deoiling liquid in the step (one) comprises the following components in percentage by weight: 40g/L of sodium carbonate, 20g/L of sodium phosphate, 4g/L of emulsifier and the balance of deionized water.
Further, the acid solution in the step (one) is a sulfuric acid solution with the concentration of 60 ml/L.
Further, the electroplating treatment liquid in the step (II) comprises the following components in percentage by weight: 105g/L of nickel sulfate, 2g/L of tartaric acid, 25g/L of sodium citrate, 5g/L of sodium molybdate, 0.3g/L of sodium dodecyl benzene sulfonate, 75g/L of diatomite and the balance of deionized water.
Further, the diatomite is subjected to the following special treatment: firstly, placing diatomite into a calcining furnace at the temperature of 800 ℃ for calcining treatment, taking out the diatomite after 1h, then immersing the diatomite into a silane coupling agent solution with the mass fraction of 5%, filtering out the diatomite after 30min of soaking treatment, washing the diatomite with deionized water once, and then airing the diatomite.
Further, in the electroplating treatment in the step (II), the pH value of the electroplating treatment liquid is controlled to be 7, the temperature is controlled to be 36 ℃, and the current density is controlled to be 5A/dm2。
Further, the mixed gas in the step (III) is ethane and carbon monoxide which are mixed according to the volume ratio of 1: 1.5, and the introduction amount of the mixed gas is 600 ml/min.
Further, the temperature in the incubator in the step (IV) is controlled to 80 ℃, and the ultrasonic treatment is continuously performed during the isothermal treatment.
Furthermore, the frequency of the ultrasonic wave is controlled to be 500kHz during the ultrasonic wave treatment.
Example 2
A treatment method for improving the wear resistance and corrosion resistance of stainless steel metal parts of agricultural machinery comprises the following steps:
(I) cleaning and activating treatment:
firstly, immersing a stainless steel metal piece into deoiling liquid, taking out after immersion treatment for 23min, immersing the stainless steel metal piece into acid liquid after washing the stainless steel metal piece once by using clear water, taking out after immersion treatment for 8s, and finally washing the stainless steel metal piece once by using clear water for later use;
(II) surface electroplating treatment:
putting the stainless steel metal piece treated in the step (one) into a prepared electroplating treatment liquid, then carrying out electroplating treatment, controlling the duration of the electroplating treatment to be 40min, and taking out the stainless steel metal piece for later use; the electroplating treatment liquid is added with a special diatomite component;
(III) surface enhancement treatment:
putting the stainless steel metal piece treated in the step (II) into a reaction furnace, keeping the inside of the reaction furnace in an argon environment, introducing mixed gas into the reaction furnace, increasing the pressure in the reaction furnace to 0.45MPa, raising the temperature to 480 ℃, preserving heat and pressure for 45min, and taking out for later use;
(IV) quality guarantee treatment:
and (5) putting the stainless steel metal piece treated in the step (three) into a constant temperature box, treating for 3h, and taking out.
Further, the deoiling liquid in the step (one) comprises the following components in percentage by weight: 41g/L of sodium carbonate, 22g/L of sodium phosphate, 5g/L of emulsifier and the balance of deionized water.
Further, the acid solution in the step (one) is a sulfuric acid solution with the concentration of 63 ml/L.
Further, the electroplating treatment liquid in the step (II) comprises the following components in percentage by weight: 110g/L of nickel sulfate, 4g/L of tartaric acid, 27g/L of sodium citrate, 7g/L of sodium molybdate, 0.4g/L of sodium dodecyl benzene sulfonate, 80g/L of diatomite and the balance of deionized water.
Further, the diatomite is subjected to the following special treatment: the diatomite is firstly placed into a calcining furnace with the temperature of 830 ℃ for calcining treatment, is taken out after 1.6 hours and then is immersed into silane coupling agent solution with the mass fraction of 6%, is filtered out after being immersed for 35 minutes and is washed by deionized water and then is dried.
Further, in the plating treatment in the step (II), the pH value of the plating treatment liquid is controlled to be 7, the temperature is controlled to be 40 ℃, and the current density is controlled to be 6A/dm2。
Further, the mixed gas in the step (III) is ethane and carbon monoxide which are mixed according to the volume ratio of 1: 1.8, and the input amount of the mixed gas is 650 ml/min.
Further, the temperature in the incubator in the step (IV) was controlled to 85 ℃ and the ultrasonic treatment was continued during the isothermal treatment.
Furthermore, the frequency of the ultrasonic wave is controlled to be 560kHz during the ultrasonic wave treatment.
Example 3
A treatment method for improving the wear resistance and corrosion resistance of stainless steel metal parts of agricultural machinery comprises the following steps:
(I) cleaning and activating treatment:
firstly, immersing a stainless steel metal piece into deoiling liquid, taking out after immersion treatment is carried out for 25min, immersing the stainless steel metal piece into acid liquid after the stainless steel metal piece is washed once by clear water, taking out after immersion treatment is carried out for 10s, and finally washing once by clear water for later use;
(II) surface electroplating treatment:
putting the stainless steel metal piece treated in the step (one) into a prepared electroplating treatment liquid, then carrying out electroplating treatment, controlling the duration of the electroplating treatment to be 50min, and taking out the stainless steel metal piece for later use; the electroplating treatment liquid is added with a special diatomite component;
(III) surface enhancement treatment:
putting the stainless steel metal piece treated in the step (II) into a reaction furnace, keeping the inside of the reaction furnace in an argon environment, introducing mixed gas into the reaction furnace, increasing the pressure in the reaction furnace to 0.5MPa, raising the temperature to 500 ℃, preserving heat and pressure for 50min, and taking out for later use;
(IV) quality guarantee treatment:
and (5) putting the stainless steel metal piece treated in the step (three) into a constant temperature box, treating for 4h, and taking out.
Further, the deoiling liquid in the step (one) comprises the following components in percentage by weight: 45g/L of sodium carbonate, 25g/L of sodium phosphate, 6g/L of emulsifier and the balance of deionized water.
Further, the acid solution in the step (one) is a sulfuric acid solution with the concentration of 65 ml/L.
Further, the electroplating treatment liquid in the step (II) comprises the following components in percentage by weight: 120g/L of nickel sulfate, 5g/L of tartaric acid, 30g/L of sodium citrate, 8g/L of sodium molybdate, 0.5g/L of sodium dodecyl benzene sulfonate, 85g/L of diatomite and the balance of deionized water.
Further, the diatomite is subjected to the following special treatment: firstly, placing diatomite into a calcining furnace with the temperature of 850 ℃ for calcining treatment, taking out the diatomite after 2 hours, then immersing the diatomite into a silane coupling agent solution with the mass fraction of 7%, filtering out the diatomite after soaking treatment for 40 minutes, washing the diatomite with deionized water once, and then airing the diatomite.
Further, in the plating treatment in the step (II), the pH value of the plating treatment liquid is controlled to be 8, the temperature is controlled to be 42 ℃, and the current density is controlled to be 7A/dm2。
Further, the mixed gas in the step (III) is ethane and carbon monoxide which are mixed according to the volume ratio of 1: 2, and the introduction amount of the mixed gas is 700 ml/min.
Further, the temperature in the incubator in the step (IV) is controlled to 90 ℃, and the ultrasonic treatment is continuously performed during the isothermal treatment.
Furthermore, the frequency of the ultrasonic wave is controlled to be 600kHz during ultrasonic wave treatment.
In order to relatively simplify the test complexity, the No. 304 stainless steel material which is not subjected to modeling treatment is directly selected as an experimental object, then the processing treatment is respectively carried out by the methods corresponding to the above embodiments 1 to 3, and then the performance test is carried out on the stainless steel materials after each group of treatment, and the wear rate of the surface coating of the stainless steel after the treatment of the embodiments 1 to 3 is measured to be 9 multiplied by 10-7~1×10-6（mm3mN), the binding force of the surface coating and the material matrix is 66-70 (MPa), and the weight loss rate of the material is only 2-3 multiplied by 10-3（mg/cm2H); the wear rate index of the plating layer is the wear resistance of the plating layer measured by adopting a rotary ball disc type experimental method, and the measurement parameters are as follows: pair grinding pair phi 4mm Al2O3The ball is loaded with 2.25N, the rotating speed is 250rpm, the rotating radius is 3mm, the abrasion time is 2h, the experiment is carried out in the atmospheric environment, and the abrasion volume of the sample after the experiment is measured by a step profiler; the binding force of the coating and the material substrate is measured by adopting a tensile test methodThe bonding force with the substrate; the weight loss index of the material is that a stainless steel sample plate is weighed by a balance and then placed in 10 vol.% of H2SO4Etching in the solution for one week, washing and drying the sample with deionized water, and weighing after etching.
Example 4
A treatment method for improving the wear resistance and corrosion resistance of stainless steel metal parts of agricultural machinery comprises the following steps:
(I) cleaning and activating treatment:
firstly, immersing a stainless steel metal piece into deoiling liquid, taking out after immersion treatment for 23min, immersing the stainless steel metal piece into acid liquid after washing the stainless steel metal piece once by using clear water, taking out after immersion treatment for 8s, and finally washing the stainless steel metal piece once by using clear water for later use;
(II) surface electroplating treatment:
putting the stainless steel metal piece treated in the step (one) into a prepared electroplating treatment liquid, then carrying out electroplating treatment, controlling the duration of the electroplating treatment to be 40min, and taking out the stainless steel metal piece for later use; the electroplating treatment liquid is added with a special diatomite component;
(III) quality guarantee treatment:
and (5) putting the stainless steel metal piece treated in the step (II) into a constant temperature box, treating for 3h, and taking out.
The present embodiment 4 is different from the present embodiment 2 only in that the step (iii) and the surface enhancement treatment operation are omitted, except that the other steps of the method are the same.
Example 5
A treatment method for improving the wear resistance and corrosion resistance of stainless steel metal parts of agricultural machinery comprises the following steps:
(I) cleaning and activating treatment:
firstly, immersing a stainless steel metal piece into deoiling liquid, taking out after immersion treatment for 23min, immersing the stainless steel metal piece into acid liquid after washing the stainless steel metal piece once by using clear water, taking out after immersion treatment for 8s, and finally washing the stainless steel metal piece once by using clear water for later use;
(II) surface electroplating treatment:
putting the stainless steel metal piece treated in the step (one) into a prepared electroplating treatment liquid, then carrying out electroplating treatment, controlling the duration of the electroplating treatment to be 40min, and taking out the stainless steel metal piece for later use;
(III) surface enhancement treatment:
putting the stainless steel metal piece treated in the step (II) into a reaction furnace, keeping the inside of the reaction furnace in an argon environment, introducing mixed gas into the reaction furnace, increasing the pressure in the reaction furnace to 0.45MPa, raising the temperature to 480 ℃, preserving heat and pressure for 45min, and taking out for later use;
(IV) quality guarantee treatment:
and (5) putting the stainless steel metal piece treated in the step (three) into a constant temperature box, treating for 3h, and taking out.
Further, the deoiling liquid in the step (one) comprises the following components in percentage by weight: 41g/L of sodium carbonate, 22g/L of sodium phosphate, 5g/L of emulsifier and the balance of deionized water.
Further, the acid solution in the step (one) is a sulfuric acid solution with the concentration of 63 ml/L.
Further, the electroplating treatment liquid in the step (II) comprises the following components in percentage by weight: 110g/L of nickel sulfate, 4g/L of tartaric acid, 27g/L of sodium citrate, 7g/L of sodium molybdate, 0.4g/L of sodium dodecyl benzene sulfonate and the balance of deionized water.
Further, in the plating treatment in the step (II), the pH value of the plating treatment liquid is controlled to be 7, the temperature is controlled to be 40 ℃, and the current density is controlled to be 6A/dm2。
Further, the mixed gas in the step (III) is ethane and carbon monoxide which are mixed according to the volume ratio of 1: 1.8, and the input amount of the mixed gas is 650 ml/min.
Further, the temperature in the incubator in the step (IV) was controlled to 85 ℃ and the ultrasonic treatment was continued during the isothermal treatment.
Furthermore, the frequency of the ultrasonic wave is controlled to be 560kHz during the ultrasonic wave treatment.
The present example 5 is different from the example 2 only in that a specific diatomaceous earth component in the plating solution is omitted, except that the other steps are the same.
Example 6
The application numbers are: 201710399085.9 discloses a plating solution and a plating method for plating pearl nickel on stainless steel, which particularly adopts the technical proposal of the embodiment 2.
In order to relatively simplify the test complexity, the No. 304 stainless steel material which is not subjected to modeling treatment is directly selected as an experimental object, then the processing treatment is respectively carried out by the methods corresponding to the above embodiments 4-6, and then the performance test is carried out on the stainless steel materials after each group of treatment, and the wear rate of the surface coating of the stainless steel treated in the embodiment 4 is 1 × 10-5~2.3×10-5（mm3mN), the binding force of the surface coating and the material matrix is 52-54 (MPa), and the weight loss rate of the material is 4.6-6.2 multiplied by 10-2（mg/cm2H); example 5 the wear rate of the coating on the surface of the stainless steel after the treatment is 7X 10-4~9×10-4（mm3mN), the binding force of the surface coating and the material matrix is 45-48 (MPa), and the weight loss rate of the material is 7.3 multiplied by 10-2~9.6×10-2（mg/cm2H); example 6 the wear rate of the coating on the surface of the stainless steel after the treatment is 8X 10-4~2×10-3（mm3mN), the binding force of the surface coating and the material matrix is 42-44 (MPa), and the weight loss rate of the material is 9.5 multiplied by 10-2~1.8×10-1（mg/cm2H); the wear rate index of the plating layer is the wear resistance of the plating layer measured by adopting a rotary ball disc type experimental method, and the measurement parameters are as follows: pair grinding pair phi 4mm Al2O3The ball is loaded with 2.25N, the rotating speed is 250rpm, the rotating radius is 3mm, the abrasion time is 2h, the experiment is carried out in the atmospheric environment, and the abrasion volume of the sample after the experiment is measured by a step profiler; the binding force of the plating layer and the material matrix is measured by adopting a tensile test method; the weight loss index of the material is that a stainless steel sample plate is weighed by a balance and then placed in 10 vol.% of H2SO4In solutionOne week, the sample is washed and dried with deionized water, and then weighed after etching. Therefore, the use performance of the agricultural machinery stainless steel metal piece treated by the method is obviously improved, the service life is prolonged well, and the method has great popularization and application values.

Claims (9)

1. A treatment method for improving the wear resistance and corrosion resistance of stainless steel metal parts of agricultural machinery is characterized by comprising the following steps:
(I) cleaning and activating treatment:
firstly, immersing a stainless steel metal piece into deoiling liquid, taking out after immersion treatment for 20-25 min, immersing the stainless steel metal piece into acid liquid after washing the stainless steel metal piece once with clear water, taking out after immersion treatment for 5-10 s, and finally washing the stainless steel metal piece once with clear water for later use;
(II) surface electroplating treatment:
putting the stainless steel metal piece treated in the step (one) into a prepared electroplating treatment liquid, then carrying out electroplating treatment, controlling the duration of the electroplating treatment to be 30-50 min, and taking out the stainless steel metal piece for later use; the electroplating treatment liquid is added with a special diatomite component;
(III) surface enhancement treatment:
putting the stainless steel metal piece treated in the step (II) into a reaction furnace, keeping the inside of the reaction furnace in an argon environment, introducing mixed gas into the reaction furnace, increasing the pressure in the reaction furnace to 0.4-0.5 MPa, raising the temperature to 450-500 ℃, preserving heat and pressure for 40-50 min, and taking out for later use;
(IV) quality guarantee treatment:
and (5) putting the stainless steel metal piece processed in the step (three) into a constant temperature box, processing for 2-4 h, and taking out.
2. The treatment method for improving the wear resistance and corrosion resistance of the stainless steel metal part of the agricultural machine according to claim 1, wherein the deoiling liquid in the step (I) comprises the following components in parts by weight: 40-45 g/L of sodium carbonate, 20-25 g/L of sodium phosphate, 4-6 g/L of emulsifier and the balance of deionized water.
3. The treatment method for improving the wear resistance and corrosion resistance of the stainless steel metal parts of the agricultural machinery according to claim 1, wherein the acid solution in the step (I) is a sulfuric acid solution with a concentration of 60-65 ml/L.
4. The treatment method for improving the wear resistance and corrosion resistance of the stainless steel metal part of the agricultural machine according to claim 1, wherein the electroplating treatment liquid in the step (II) comprises the following components in parts by weight: 105-120 g/L of nickel sulfate, 2-5 g/L of tartaric acid, 25-30 g/L of sodium citrate, 5-8 g/L of sodium molybdate, 0.3-0.5 g/L of sodium dodecyl benzene sulfonate, 75-85 g/L of diatomite and the balance of deionized water.
5. The treatment method for improving the wear resistance and corrosion resistance of the stainless steel metal part of the agricultural machine according to claim 4, wherein the diatomite is subjected to the following special treatment: the method comprises the steps of firstly putting diatomite into a calcining furnace at the temperature of 800-850 ℃ for calcining treatment, taking out the diatomite after 1-2 hours, then immersing the diatomite into a silane coupling agent solution with the mass fraction of 5-7%, filtering out the diatomite after 30-40 minutes of soaking treatment, washing the diatomite with deionized water once, and then airing the diatomite.
6. The treatment method for improving the wear resistance and corrosion resistance of the stainless steel metal part of the agricultural machine according to claim 1, wherein the pH value of the electroplating treatment liquid is controlled to be 7-8, the temperature is controlled to be 36-42 ℃, and the current density is controlled to be 5-7A/dm during the electroplating treatment in the step (II)2。
7. The treatment method for improving the wear resistance and corrosion resistance of the stainless steel metal part of the agricultural machine according to claim 1, wherein the mixed gas in the step (III) is ethane and carbon monoxide in a volume ratio of 1: 1.5-2, wherein the introduction amount of the mixed gas is 600-700 ml/min.
8. The treatment method for improving the wear resistance and corrosion resistance of the stainless steel metal part of the agricultural machine according to claim 1, wherein the temperature in the incubator in the step (IV) is controlled to be 80-90 ℃, and the ultrasonic treatment is continuously carried out during the isothermal treatment.
9. The treatment method for improving the wear resistance and corrosion resistance of the stainless steel metal part of the agricultural machine according to claim 8, wherein the ultrasonic wave treatment is performed by controlling the frequency of the ultrasonic wave to be 500-600 kHz.
CN201911281081.6A 2019-12-11 2019-12-11 Treatment method for improving wear resistance and corrosion resistance of stainless steel metal part of agricultural machine Withdrawn CN111020646A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911281081.6A CN111020646A (en) 2019-12-11 2019-12-11 Treatment method for improving wear resistance and corrosion resistance of stainless steel metal part of agricultural machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911281081.6A CN111020646A (en) 2019-12-11 2019-12-11 Treatment method for improving wear resistance and corrosion resistance of stainless steel metal part of agricultural machine

Publications (1)

Publication Number Publication Date
CN111020646A true CN111020646A (en) 2020-04-17

Family

ID=70208512

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911281081.6A Withdrawn CN111020646A (en) 2019-12-11 2019-12-11 Treatment method for improving wear resistance and corrosion resistance of stainless steel metal part of agricultural machine

Country Status (1)

Country Link
CN (1) CN111020646A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111826654A (en) * 2020-07-06 2020-10-27 安徽省赛威输送设备有限公司 Processing method for improving corrosion resistance of elevator shell
CN112095128A (en) * 2020-07-28 2020-12-18 安徽绩溪徽山链传动有限公司 Treatment method for enhancing temperature resistance and wear resistance of chain plate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111826654A (en) * 2020-07-06 2020-10-27 安徽省赛威输送设备有限公司 Processing method for improving corrosion resistance of elevator shell
CN112095128A (en) * 2020-07-28 2020-12-18 安徽绩溪徽山链传动有限公司 Treatment method for enhancing temperature resistance and wear resistance of chain plate

Similar Documents

Publication Publication Date Title
CN111020646A (en) Treatment method for improving wear resistance and corrosion resistance of stainless steel metal part of agricultural machine
CN105367328A (en) Soil restoration fertilizer for bettering soil fertility
CN106385863A (en) Seedling culture method for strawberry seeds
Warkentin et al. Agrobacterium tumefaciens-mediated beta-glucuronidase (GUS) gene expression in lentil (Lens culinaris Medik.) tissues
CN111448946A (en) Dictyophora rubrovalvata branch strain cultivation method
CN107129349A (en) One kind load carbon-based magnetic biological fertilizer of ferroso-ferric oxide biomass and preparation method thereof
CN106831043A (en) A kind of tomato soilless culture substrate
CN107473345A (en) A kind of preparation method of composite algicide
CN111282980A (en) Safe recycling method for heavy metal contaminated soil subjected to chemical leaching remediation
CN107574188A (en) A kind of straw ensiling method based on high-efficiency fermenting production biogas
CN113133367A (en) Comprehensive control method for banana wilt
JP2019025479A (en) Flexible rice-milling method
CN117512051A (en) Screening method of wild hemoglobus with antibacterial activity
CN104692875A (en) Nutrient solution for leafy vegetables and preparation method thereof
CN107155696A (en) Culture medium for plant seedlings and preparation method
CN110981598A (en) Functional high-tower compound fertilizer and preparation method thereof
CN111436342B (en) Method for synergistically reducing chromium absorption during rice planting period by virtue of biological carbon coupling and water management
CN106688769A (en) Cutting treatment method for cutting seedling of maidenhair trees
CN106987592B (en) Method for inhibiting expression of gibberellin synthetic gene of pear seed
CN108358682A (en) A kind of ecological environment-friendly type submerged plant growth accelerating agent and preparation method and application
CN109627104B (en) Water-soluble fertilizer for fruit tree planting and preparation method and application thereof
CN106612744A (en) Peanut seed germination accelerating method
CN108773906B (en) Method for preventing and controlling shallow water system eutrophic lake by using aquatic plants
CN107190345A (en) A kind of preparation technology of long-life fishing lines monofilament
CN105274138A (en) Method for improving cotton transgenosis efficiency

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20200417